Pub Date : 2023-09-28DOI: 10.5604/01.3001.0053.9568
Milena Bąk, Karolina Lipska, Izabela Betlej, Krzysztof Krajewski, Piotr Boruszewski
: Graphene oxide - potential use in wood protection based on a review of antibacterial and fungicide properties. Graphene oxide is a material that has been generating interest among researchers in recent years. Due to its properties, it can be used in many scientific and industrial fields. Not all of its properties are significantly known, making it a potential subject of research in many different aspects. The topic of this article is to assess the potential applications of graphene oxide in the field of wood science industry. Based on the literature, the antibacterial and fungicidal properties are characterised. The fungicidal effect of graphene oxide, mainly in plant protection, leads to consideration of the potential use of this material in protection against wood-destroying fungi.
{"title":"Graphene oxide - potential use in wood protection based on a review of antibacterial and fungicide properties","authors":"Milena Bąk, Karolina Lipska, Izabela Betlej, Krzysztof Krajewski, Piotr Boruszewski","doi":"10.5604/01.3001.0053.9568","DOIUrl":"https://doi.org/10.5604/01.3001.0053.9568","url":null,"abstract":": Graphene oxide - potential use in wood protection based on a review of antibacterial and fungicide properties. Graphene oxide is a material that has been generating interest among researchers in recent years. Due to its properties, it can be used in many scientific and industrial fields. Not all of its properties are significantly known, making it a potential subject of research in many different aspects. The topic of this article is to assess the potential applications of graphene oxide in the field of wood science industry. Based on the literature, the antibacterial and fungicidal properties are characterised. The fungicidal effect of graphene oxide, mainly in plant protection, leads to consideration of the potential use of this material in protection against wood-destroying fungi.","PeriodicalId":8205,"journal":{"name":"Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135470618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-28DOI: 10.5604/01.3001.0053.9307
Olaf Pelc, Grzegorz Kowaluk
Selected physical and mechanical properties of particleboards with variable shares of nettle Urtica dioica L. lignocellulosic particles. The aim of the research was to confirm the possibility of using woody particles of either young or adult nettle Urtica dioica stems as alternative raw materials in the production of particleboards. As part of the work, particleboards made out of nettle Urtica dioica particles were produced in laboratory conditions and selected physical and mechanical properties of the obtained boards were tested. The results show, that it is possible to manufacture particleboards for the furniture industry using particles of nettle (Urtica dioica L.) meeting the requirements for P2 boards according to EN 312 as long as nettle particle mass content does not exceed 50%.
{"title":"Selected physical and mechanical properties of particleboards with variable shares of nettle Urtica dioica L. lignocellulosic particles","authors":"Olaf Pelc, Grzegorz Kowaluk","doi":"10.5604/01.3001.0053.9307","DOIUrl":"https://doi.org/10.5604/01.3001.0053.9307","url":null,"abstract":"Selected physical and mechanical properties of particleboards with variable shares of nettle Urtica dioica L. lignocellulosic particles. The aim of the research was to confirm the possibility of using woody particles of either young or adult nettle Urtica dioica stems as alternative raw materials in the production of particleboards. As part of the work, particleboards made out of nettle Urtica dioica particles were produced in laboratory conditions and selected physical and mechanical properties of the obtained boards were tested. The results show, that it is possible to manufacture particleboards for the furniture industry using particles of nettle (Urtica dioica L.) meeting the requirements for P2 boards according to EN 312 as long as nettle particle mass content does not exceed 50%.","PeriodicalId":8205,"journal":{"name":"Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135470537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-28DOI: 10.5604/01.3001.0053.9306
Igor Borysiewicz, Grzegorz Kowaluk
Selected properties of MDF boards bonded with various fractions of recycled HDPE particles.The substitution of non-renewable, formaldehyde-based amine wood binders in the wood-based composites industry is one of the main directions of trials and research. On the other hand, a bigger effort should be put into carbon capture and storage (CCS) activity, especially in the case of oil-based plastics, to extend their life in the products. The aim of the research was to use waste high-density polyethylene (HDPE) in MDF panels and determine their selected properties, including modulus of elasticity in bending, bending strength, internal bond, thickness swelling, water absorption, screw withdrawal resistance, density profile when referred to the fraction of used HDPE.The panels were created in laboratory conditions with a 50% weight content of HDPE particles of different fractions (<1 mm, <2 mm, <4 mm, and a mixed fraction containing 25% of each fraction and unsorted waste). The results show that the highest strength and modulus of elasticity were obtained for panels with plastic fractions below 1 mm. This fraction also achieved the lowest results for water absorption and thickness swelling. The fraction of the used plastic has no significant effect on screw withdrawal resistance. The negative impact of using larger fractions in the board is noticeable, however, for the mixed fraction, the results are similar to the finest fraction in terms of the internal bond, thickness swelling, and water absorption. The addition of HDPE can have a beneficial effect on the parameters of MDF panels. It is possible to create fibreboards from wasted plastic, store carbon dioxide in them, and upcycle them. In the discussed panels, the only binder for wood fibres was HDPE, so panels should not emit formaldehyde from the binder.
{"title":"Selected properties of MDF boards bonded with various fractions of recycled HDPE particles","authors":"Igor Borysiewicz, Grzegorz Kowaluk","doi":"10.5604/01.3001.0053.9306","DOIUrl":"https://doi.org/10.5604/01.3001.0053.9306","url":null,"abstract":"Selected properties of MDF boards bonded with various fractions of recycled HDPE particles.The substitution of non-renewable, formaldehyde-based amine wood binders in the wood-based composites industry is one of the main directions of trials and research. On the other hand, a bigger effort should be put into carbon capture and storage (CCS) activity, especially in the case of oil-based plastics, to extend their life in the products. The aim of the research was to use waste high-density polyethylene (HDPE) in MDF panels and determine their selected properties, including modulus of elasticity in bending, bending strength, internal bond, thickness swelling, water absorption, screw withdrawal resistance, density profile when referred to the fraction of used HDPE.The panels were created in laboratory conditions with a 50% weight content of HDPE particles of different fractions (<1 mm, <2 mm, <4 mm, and a mixed fraction containing 25% of each fraction and unsorted waste). The results show that the highest strength and modulus of elasticity were obtained for panels with plastic fractions below 1 mm. This fraction also achieved the lowest results for water absorption and thickness swelling. The fraction of the used plastic has no significant effect on screw withdrawal resistance. The negative impact of using larger fractions in the board is noticeable, however, for the mixed fraction, the results are similar to the finest fraction in terms of the internal bond, thickness swelling, and water absorption. The addition of HDPE can have a beneficial effect on the parameters of MDF panels. It is possible to create fibreboards from wasted plastic, store carbon dioxide in them, and upcycle them. In the discussed panels, the only binder for wood fibres was HDPE, so panels should not emit formaldehyde from the binder.","PeriodicalId":8205,"journal":{"name":"Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135470536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-28DOI: 10.5604/01.3001.0053.9308
Kinga Kryńska, Grzegorz Kowaluk
Application of soy starch as a binder in HDF technology. The aim of the research was to determine the selected properties of a dry-formed high-density fibreboard (HDF) bonded with soya flour as an environmentally friendly binding agent. The scope of work included the production of boards under laboratory conditions with different mass percentages of soy flour, i.e. 10%, 12%, 15% and 20%. Different mechanical and physical properties were determined, namely modulus of rupture, modulus of elasticity, the screw withdrawal resistance of the panels, internal bonding strength, density profile, thickness swelling, water absorption and surface water absorption. The results showed that increasing the proportion of soybean binder by weight contributes to improving mechanical properties but worsens physical properties.
{"title":"Application of soy starch as a binder in HDF technology","authors":"Kinga Kryńska, Grzegorz Kowaluk","doi":"10.5604/01.3001.0053.9308","DOIUrl":"https://doi.org/10.5604/01.3001.0053.9308","url":null,"abstract":"Application of soy starch as a binder in HDF technology. The aim of the research was to determine the selected properties of a dry-formed high-density fibreboard (HDF) bonded with soya flour as an environmentally friendly binding agent. The scope of work included the production of boards under laboratory conditions with different mass percentages of soy flour, i.e. 10%, 12%, 15% and 20%. Different mechanical and physical properties were determined, namely modulus of rupture, modulus of elasticity, the screw withdrawal resistance of the panels, internal bonding strength, density profile, thickness swelling, water absorption and surface water absorption. The results showed that increasing the proportion of soybean binder by weight contributes to improving mechanical properties but worsens physical properties.","PeriodicalId":8205,"journal":{"name":"Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135470854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-28DOI: 10.5604/01.3001.0053.9813
Katarzyna Śmietańska, Jarosław Górski
: Efficacy comparison of two methods for determining the position of the rebate edge (formed after machining) during automatic monitoring of workpiece delamination. Delamination is one of the most common defects in the processing of wood-based materials. It has a huge impact on the quality of the final product. In order to determine the delamination indicators in a simple and reliable way, the automatic image processing method can be used (Śmietańska et al. 2020). Bator and Śmietańska (2019) proposed the special algorithm to estimate the straight line representing a milling edge. However, this algorithm is quite complicated. The aim of this article is to check whether the aforementioned (complicated) algorithmic way can be replaced by a much simpler idea – the precise manual positioning of the scanned sample on the scanner (using very simple device installed on the scanner). The special experimental research was carried out to compare the effectiveness of the two different methods. The straight line which represents the rebate edge identified by Bator and Śmietańska (2019) algorithm was usually accurate to 1 pixel (0.02 mm). The analogue line based on the assumption that the scanned samples were perfectly positioned on the scanner only sometimes fit just as well. At worst, the distance between these lines is 0.2 mm. Usually the distance did not exceed 0.16 mm but was significant and quite random. There was no statistically significant correlation between this parameter (Dmax) and tool condition (VB). It means that sample were not perfect positioned. They were placed more or less in the same position because of imperfect stiffness of the frame installed on the scanner and human errors.
:工件分层自动监控中两种确定返利边(加工后形成)位置方法的效果比较。脱层是木基材料加工中最常见的缺陷之一。它对最终产品的质量有很大的影响。为了简单可靠地确定分层指标，可以采用自动图像处理方法(Śmietańska et al. 2020)。Bator和Śmietańska(2019)提出了一种特殊的算法来估计代表铣削边缘的直线。然而，这个算法相当复杂。本文的目的是检查上述(复杂的)算法方法是否可以被一个更简单的想法所取代-扫描样品在扫描仪上的精确手动定位(使用安装在扫描仪上的非常简单的设备)。为比较两种方法的有效性，进行了专门的实验研究。Bator和Śmietańska(2019)算法识别的代表返利边缘的直线通常精确到1像素(0.02毫米)。基于扫描样品完全放置在扫描仪上的假设的模拟线只是有时也适合。在最坏的情况下，这些线之间的距离为0.2毫米。通常距离不超过0.16 mm，但具有显著性和随机性。该参数(Dmax)与刀具状态(VB)之间无统计学意义的相关性。说明样品定位不完美。由于安装在扫描仪上的框架的刚度不完美和人为错误，它们被放置在或多或少相同的位置。
{"title":"Efficacy comparison of two methods for determining the position of the rebate edge (formed after MDF machining) during automatic monitoring of workpiece delamination","authors":"Katarzyna Śmietańska, Jarosław Górski","doi":"10.5604/01.3001.0053.9813","DOIUrl":"https://doi.org/10.5604/01.3001.0053.9813","url":null,"abstract":": Efficacy comparison of two methods for determining the position of the rebate edge (formed after machining) during automatic monitoring of workpiece delamination. Delamination is one of the most common defects in the processing of wood-based materials. It has a huge impact on the quality of the final product. In order to determine the delamination indicators in a simple and reliable way, the automatic image processing method can be used (Śmietańska et al. 2020). Bator and Śmietańska (2019) proposed the special algorithm to estimate the straight line representing a milling edge. However, this algorithm is quite complicated. The aim of this article is to check whether the aforementioned (complicated) algorithmic way can be replaced by a much simpler idea – the precise manual positioning of the scanned sample on the scanner (using very simple device installed on the scanner). The special experimental research was carried out to compare the effectiveness of the two different methods. The straight line which represents the rebate edge identified by Bator and Śmietańska (2019) algorithm was usually accurate to 1 pixel (0.02 mm). The analogue line based on the assumption that the scanned samples were perfectly positioned on the scanner only sometimes fit just as well. At worst, the distance between these lines is 0.2 mm. Usually the distance did not exceed 0.16 mm but was significant and quite random. There was no statistically significant correlation between this parameter (Dmax) and tool condition (VB). It means that sample were not perfect positioned. They were placed more or less in the same position because of imperfect stiffness of the frame installed on the scanner and human errors.","PeriodicalId":8205,"journal":{"name":"Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135472054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-28DOI: 10.5604/01.3001.0053.9304
Gabriela Radomska, Nikola Kucharczyk, Wiktoria Suszczyńska, Andrzej Radomski
Suitability of silver birch bark as a natural source for dyeing cotton. The study was carried out on dyeing cotton fabric with silver birch bark extract without a mordant and with the use of mordants - oxalic acid and inorganic salts of aluminum, tin, iron and copper. The color of the fabric was determined in the CIE L*a*b* system. Pale orange to salmon shades were obtained. In the case of iron and copper, a significantly different color was obtained, dark grayish and rusty, respectively. Color fastness tests were carried out using hot water, mineral acid, mild and hot washing, dry cleaning and natural exposure to sunlight. Excellent resistance to dry cleaning and mild and hot washing was found, as well as good resistance to mineral acid. The dyed fabric had the weakest, although still quite good, resistance to sunlight.
{"title":"Suitability of silver birch bark as a natural source for cotton dyeing","authors":"Gabriela Radomska, Nikola Kucharczyk, Wiktoria Suszczyńska, Andrzej Radomski","doi":"10.5604/01.3001.0053.9304","DOIUrl":"https://doi.org/10.5604/01.3001.0053.9304","url":null,"abstract":"Suitability of silver birch bark as a natural source for dyeing cotton. The study was carried out on dyeing cotton fabric with silver birch bark extract without a mordant and with the use of mordants - oxalic acid and inorganic salts of aluminum, tin, iron and copper. The color of the fabric was determined in the CIE L*a*b* system. Pale orange to salmon shades were obtained. In the case of iron and copper, a significantly different color was obtained, dark grayish and rusty, respectively. Color fastness tests were carried out using hot water, mineral acid, mild and hot washing, dry cleaning and natural exposure to sunlight. Excellent resistance to dry cleaning and mild and hot washing was found, as well as good resistance to mineral acid. The dyed fabric had the weakest, although still quite good, resistance to sunlight.","PeriodicalId":8205,"journal":{"name":"Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135470732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-30DOI: 10.5604/01.3001.0053.9126
Julia Dasiewicz, Anita Wronka
: Influence of the use of chestnut starch as a binder filler in plywood technology. Fillers play a crucial role in the production of plywood glues, providing enhanced performance and stability to the end product. Plywood, being a composite material, requires fillers to improve its mechanical properties, adhesion, and overall quality. One common filler used in plywood glues is calcium carbonate. It acts as a bulking agent, increasing the volume and density of the adhesive mixture while reducing production costs. Calcium carbonate also enhances the glue's viscosity, ensuring proper bonding and uniform application during the plywood manufacturing process. Another widely used filler is rye or wheat flour, which consists of finely ground grains. The flour not only improves the adhesive's viscosity but also contributes to the overall strength and stability of the plywood. It helps to prevent warping and enhances dimensional stability, making the final product more durable. Additionally, other fillers like talc or clay minerals may be incorporated into the glues to improve their adhesive properties and increase moisture resistance. Chestnut starch is a type of vegetable flour made by grinding edible chestnuts into a powder. It has a different texture and properties than traditional wheat or rye flour. When used as a binder filler in plywood technology, it can be biodegradable and environment-friendly. In the study, there were produced five types of plywood with 0, 1, 5, 10, and 20 parts by weight chestnut flour and one reference. All samples were produced in laboratory conditions and the selected mechanical and physical properties of the produced boards were studied. The mechanical properties of the boards increased with the addition of chestnut flour. In some tests, the results even met the highest requirements of European standards for plywood. According to this finding, a well-chosen addition of chestnut flour could be positively considered in plywood production.
{"title":"Influence of the use of chestnut starch as a binder filler in plywood technology","authors":"Julia Dasiewicz, Anita Wronka","doi":"10.5604/01.3001.0053.9126","DOIUrl":"https://doi.org/10.5604/01.3001.0053.9126","url":null,"abstract":": Influence of the use of chestnut starch as a binder filler in plywood technology. Fillers play a crucial role in the production of plywood glues, providing enhanced performance and stability to the end product. Plywood, being a composite material, requires fillers to improve its mechanical properties, adhesion, and overall quality. One common filler used in plywood glues is calcium carbonate. It acts as a bulking agent, increasing the volume and density of the adhesive mixture while reducing production costs. Calcium carbonate also enhances the glue's viscosity, ensuring proper bonding and uniform application during the plywood manufacturing process. Another widely used filler is rye or wheat flour, which consists of finely ground grains. The flour not only improves the adhesive's viscosity but also contributes to the overall strength and stability of the plywood. It helps to prevent warping and enhances dimensional stability, making the final product more durable. Additionally, other fillers like talc or clay minerals may be incorporated into the glues to improve their adhesive properties and increase moisture resistance. Chestnut starch is a type of vegetable flour made by grinding edible chestnuts into a powder. It has a different texture and properties than traditional wheat or rye flour. When used as a binder filler in plywood technology, it can be biodegradable and environment-friendly. In the study, there were produced five types of plywood with 0, 1, 5, 10, and 20 parts by weight chestnut flour and one reference. All samples were produced in laboratory conditions and the selected mechanical and physical properties of the produced boards were studied. The mechanical properties of the boards increased with the addition of chestnut flour. In some tests, the results even met the highest requirements of European standards for plywood. According to this finding, a well-chosen addition of chestnut flour could be positively considered in plywood production.","PeriodicalId":8205,"journal":{"name":"Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136364968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-30DOI: 10.5604/01.3001.0053.9299
Julia Dasiewicz, Grzegorz Kowaluk
Characteristics of high-density fibreboard produced with the use of rice starch as a binder. The adhesives used as binders in the boards are not biodegradable, and their formaldehyde is toxic. Nowadays it is very important to take care of the environment. There are a lot of biodegradable products that as well as the current board binders can meet good mechanical and physical properties and at the same time not harm the environment. Therefore in this project, the study aimed to investigate the possibility of producing dry-formed fibreboards usingrice starch as a binder. The research involved the production of boards with a mass proportion of rice starch 0%, 10%, 12%, 15%, and 20% (when referred to as totally dry wood fibre mass) and to study of their selected physical and mechanical properties. The results proved that rice starch can be used as a binding agent if we choose the right amount of starch so that it can improve some mechanical and physical properties. Very good properties came out for the determination of modulus of elasticity in bending and of bending strength and for screw withdrawal resistance with a high rice binder content, but on the other hand for internal bonds, the high rice content reduced the properties. For some studies, rice flour improved properties but not enough to comply with standards as was the case with the swelling of the thickness.
{"title":"Characteristics of high-density fibreboard produced with the use of rice starch as a binder","authors":"Julia Dasiewicz, Grzegorz Kowaluk","doi":"10.5604/01.3001.0053.9299","DOIUrl":"https://doi.org/10.5604/01.3001.0053.9299","url":null,"abstract":"Characteristics of high-density fibreboard produced with the use of rice starch as a binder. The adhesives used as binders in the boards are not biodegradable, and their formaldehyde is toxic. Nowadays it is very important to take care of the environment. There are a lot of biodegradable products that as well as the current board binders can meet good mechanical and physical properties and at the same time not harm the environment. Therefore in this project, the study aimed to investigate the possibility of producing dry-formed fibreboards usingrice starch as a binder. The research involved the production of boards with a mass proportion of rice starch 0%, 10%, 12%, 15%, and 20% (when referred to as totally dry wood fibre mass) and to study of their selected physical and mechanical properties. The results proved that rice starch can be used as a binding agent if we choose the right amount of starch so that it can improve some mechanical and physical properties. Very good properties came out for the determination of modulus of elasticity in bending and of bending strength and for screw withdrawal resistance with a high rice binder content, but on the other hand for internal bonds, the high rice content reduced the properties. For some studies, rice flour improved properties but not enough to comply with standards as was the case with the swelling of the thickness.","PeriodicalId":8205,"journal":{"name":"Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology","volume":"208 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136365704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-30DOI: 10.5604/01.3001.0053.8666
Aleksandra Jeżo, Łukasz Adamik, Piotr Borysiuk, Radosław Auriga
The impact of the share of waste lignocellulosic biomass from apple orchards on the susceptibility to drilling of produced particle boards. Every year, care cuts are carried out in the orchards, which result in a significant amount of waste. This waste is a valuable source of lignocellulosic material for particleboards production. As part of this study, the influence of the share of waste apple wood on the susceptibility to drilling of particleboards was investigated. Three-layer particle boards with share of lignocellulosic waste biomass from apple orchards (0%, 25%, 50% and 75%) and density level at 650 kg/m3and 550 kg/m3 were made. The particleboards were examined for the axial force and torque that occurs during drilling. The highest value of the axial force during drilling was notice for particleboard without apple wood and a density of 650 kg/m3. While the lowest axial force during drilling was recorded for particleboard with 50% share of apple wood and density of 550 kg/m3. The obtained results allow to conclude that density of the produced particleboards and the share of apple wood waste have a statistically significant effect on the axial force during drilling. While the share of apple wood do not statistically affect the torque during drilling. In the case of the pressing unit pressure used in the particleboards production process, no statistically significant influence on the axial force and torque during drilling was found.
{"title":"The impact of the share of waste lignocellulosic biomass from apple orchards on the susceptibility to drilling of produced particleboards","authors":"Aleksandra Jeżo, Łukasz Adamik, Piotr Borysiuk, Radosław Auriga","doi":"10.5604/01.3001.0053.8666","DOIUrl":"https://doi.org/10.5604/01.3001.0053.8666","url":null,"abstract":"The impact of the share of waste lignocellulosic biomass from apple orchards on the susceptibility to drilling of produced particle boards. Every year, care cuts are carried out in the orchards, which result in a significant amount of waste. This waste is a valuable source of lignocellulosic material for particleboards production. As part of this study, the influence of the share of waste apple wood on the susceptibility to drilling of particleboards was investigated. Three-layer particle boards with share of lignocellulosic waste biomass from apple orchards (0%, 25%, 50% and 75%) and density level at 650 kg/m3and 550 kg/m3 were made. The particleboards were examined for the axial force and torque that occurs during drilling. The highest value of the axial force during drilling was notice for particleboard without apple wood and a density of 650 kg/m3. While the lowest axial force during drilling was recorded for particleboard with 50% share of apple wood and density of 550 kg/m3. The obtained results allow to conclude that density of the produced particleboards and the share of apple wood waste have a statistically significant effect on the axial force during drilling. While the share of apple wood do not statistically affect the torque during drilling. In the case of the pressing unit pressure used in the particleboards production process, no statistically significant influence on the axial force and torque during drilling was found.","PeriodicalId":8205,"journal":{"name":"Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology","volume":"154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136300250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-30DOI: 10.5604/01.3001.0053.9309
Marwa Dahche, Grzegorz Kowaluk
Selected Challenges of Closed-Loop Economy in the Furniture Industry. In this work, the subject matterof the reutilization of wood and other wood-derived materials in the field of carpentry was addressed. To beginwith, particular emphasis was placed on elucidating the definitions of upcycling. Additionally, a comparativeanalysis was conducted, juxtaposing the aforementioned upcycling process with the practice commonly referredto as downcycling. Subsequently, an exposition was presented regarding the concept of a closed-loop economy,alongside an exploration of the legal frameworks governing the reuse of waste materials. The final section of thestudy delved into the intricacies surrounding recycling within the realm of furniture manufacturing, encompassinga comprehensive elucidation of wood biomass and its subsequent utilization, followed by a focused examinationof the potentialities offered through the repurposing of, for instance, antiquated furniture items.
{"title":"Selected Challenges of Closed-Loop Economy in the Furniture Industry","authors":"Marwa Dahche, Grzegorz Kowaluk","doi":"10.5604/01.3001.0053.9309","DOIUrl":"https://doi.org/10.5604/01.3001.0053.9309","url":null,"abstract":"Selected Challenges of Closed-Loop Economy in the Furniture Industry. In this work, the subject matterof the reutilization of wood and other wood-derived materials in the field of carpentry was addressed. To beginwith, particular emphasis was placed on elucidating the definitions of upcycling. Additionally, a comparativeanalysis was conducted, juxtaposing the aforementioned upcycling process with the practice commonly referredto as downcycling. Subsequently, an exposition was presented regarding the concept of a closed-loop economy,alongside an exploration of the legal frameworks governing the reuse of waste materials. The final section of thestudy delved into the intricacies surrounding recycling within the realm of furniture manufacturing, encompassinga comprehensive elucidation of wood biomass and its subsequent utilization, followed by a focused examinationof the potentialities offered through the repurposing of, for instance, antiquated furniture items.","PeriodicalId":8205,"journal":{"name":"Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136365599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：