Pub Date : 2023-10-19DOI: 10.14314/polimery.2023.7.5
Bronisław Samujło
The effect of 10-40 wt% natural fillers (pumpkin husks, bean sorting waste, pine sawdust) on the mechanical properties and flammability of LDPE was examined. As the filler content increased, the hardness slightly increased and the tensile strength and relative elongation decreased. The tensile modulus more than doubled (pumpkin husks, pine sawdust). The linear combustion rate increased unfavorably, but the assumed flammability class HB40 was achieved, except for LDPE filled with 40 wt% pine sawdust (HB75). At the same time, the temperature in the combustion area decreased in the vertical flammability test.
{"title":"The effect of natural fillers on the mechanical properties and flammability of low-density polyethylene","authors":"Bronisław Samujło","doi":"10.14314/polimery.2023.7.5","DOIUrl":"https://doi.org/10.14314/polimery.2023.7.5","url":null,"abstract":"The effect of 10-40 wt% natural fillers (pumpkin husks, bean sorting waste, pine sawdust) on the mechanical properties and flammability of LDPE was examined. As the filler content increased, the hardness slightly increased and the tensile strength and relative elongation decreased. The tensile modulus more than doubled (pumpkin husks, pine sawdust). The linear combustion rate increased unfavorably, but the assumed flammability class HB40 was achieved, except for LDPE filled with 40 wt% pine sawdust (HB75). At the same time, the temperature in the combustion area decreased in the vertical flammability test.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135781363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-18DOI: 10.14314/polimery.2023.7.3
M. Sajid Ali Asghar, Muhammad Amir, Umer Hussain, Mohammed M. Sabri
A method was developed to obtain a durable coating consisting of zinc and graphene oxide (Zn-GO) in order to reduce the mechanical wear and tear rate of oil and gas pipelines made of steel. Graphene oxide was obtained from graphite by wet chemical oxidation (unmodified and modified Hummers’ method) using potassium permanganate and sulfuric acid. The process was carried out at various temperatures. The steel was covered with an ultrathin layer of Zn-GO using the electrophoretic deposition method. The GO particle size (< 90 nm) was confirmed by XRD and laser analysis. For GO particles obtained by the modified Hummers’ method, a significant correlation was observed in the scratch (R2 = 0.87) and the Vickers microhardness tests (R2 = 0.93), which indicates a lower wear rate of Zn-GO-coated steel.
{"title":"Zinc and graphene oxide composites as new protective coatings for oil and gas pipes","authors":"M. Sajid Ali Asghar, Muhammad Amir, Umer Hussain, Mohammed M. Sabri","doi":"10.14314/polimery.2023.7.3","DOIUrl":"https://doi.org/10.14314/polimery.2023.7.3","url":null,"abstract":"A method was developed to obtain a durable coating consisting of zinc and graphene oxide (Zn-GO) in order to reduce the mechanical wear and tear rate of oil and gas pipelines made of steel. Graphene oxide was obtained from graphite by wet chemical oxidation (unmodified and modified Hummers’ method) using potassium permanganate and sulfuric acid. The process was carried out at various temperatures. The steel was covered with an ultrathin layer of Zn-GO using the electrophoretic deposition method. The GO particle size (< 90 nm) was confirmed by XRD and laser analysis. For GO particles obtained by the modified Hummers’ method, a significant correlation was observed in the scratch (R2 = 0.87) and the Vickers microhardness tests (R2 = 0.93), which indicates a lower wear rate of Zn-GO-coated steel.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135943096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-18DOI: 10.14314/polimery.2023.7.6
Arkadiusz Kloziński, Krzysztof Lewandowski, Jacek Mirowski, Mateusz Barczewski, Paulina Jakubowska
The rheological properties of isotactic polypropylene (iPP) and its composites with unmodified and stearic acid-modified calcium carbonate (5, 10, 20, 30 wt.%) were investigated. The processability factor K of the composites was determined based on changes in the mass flow rate (MFR). The assessment of rheological properties was carried out at high shear rates, in the injection process, using a special on-line measuring head. Measurements were performed at a temperature of 230°C, in the range of apparent shear rate from 19,100 to 101,900 s-1, based on the Ostwald-de Waele power-law model. It has been shown that the behavior of polymer composites during processing (flow resistance, flow, and viscosity curves, MFR) depends on the degree of filling, the type of filler used and the range of shear rates.
{"title":"Rheological properties of polypropylene composites with calcium carbonate under high shear rates","authors":"Arkadiusz Kloziński, Krzysztof Lewandowski, Jacek Mirowski, Mateusz Barczewski, Paulina Jakubowska","doi":"10.14314/polimery.2023.7.6","DOIUrl":"https://doi.org/10.14314/polimery.2023.7.6","url":null,"abstract":"The rheological properties of isotactic polypropylene (iPP) and its composites with unmodified and stearic acid-modified calcium carbonate (5, 10, 20, 30 wt.%) were investigated. The processability factor K of the composites was determined based on changes in the mass flow rate (MFR). The assessment of rheological properties was carried out at high shear rates, in the injection process, using a special on-line measuring head. Measurements were performed at a temperature of 230°C, in the range of apparent shear rate from 19,100 to 101,900 s-1, based on the Ostwald-de Waele power-law model. It has been shown that the behavior of polymer composites during processing (flow resistance, flow, and viscosity curves, MFR) depends on the degree of filling, the type of filler used and the range of shear rates.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135943095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-17DOI: 10.14314/polimery.2023.7.8
Kajetan Pyrzyński, Agnieszka Michalska
The effect of silica on the intumescent fire-retardant coating’s properties. Cone calorimetry and a single burning item test were used to determine flammability. The silica-modified intumescent coating allows obtaining a Bs1d0 class non-flammable material for the protection of wood and wood-based materials (e.g., plywood, chipboard, fiberboard, other lignocellulosic composites).
{"title":"New intumescent coatings for protection flammable materials interior and outside buildings","authors":"Kajetan Pyrzyński, Agnieszka Michalska","doi":"10.14314/polimery.2023.7.8","DOIUrl":"https://doi.org/10.14314/polimery.2023.7.8","url":null,"abstract":"The effect of silica on the intumescent fire-retardant coating’s properties. Cone calorimetry and a single burning item test were used to determine flammability. The silica-modified intumescent coating allows obtaining a Bs1d0 class non-flammable material for the protection of wood and wood-based materials (e.g., plywood, chipboard, fiberboard, other lignocellulosic composites).","PeriodicalId":20319,"journal":{"name":"Polimery","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136038834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-13DOI: 10.14314/polimery.2023.7.7
St. Fauziah, Nunuk Hariani Soekamto, Budi Prastawa, Herlina Rasyid, Nur Haedar, Muralia Hustim, Marlina Marlina, Magfirah Sulaiman, Ajuk Sapar
Molecularly imprinted polymers (MIP) were obtained by precipitation polymerization for the detection of DEHP and DBP from polymer packaging in drinking water. MIP was obtained by cross-linking DEHP and DBP with methyl methacrylate (MMA) and trimethylolpropane trimethacrylate (TRIM). FTIR, SEM-EDS, UV-Vis and SAA were used to determine properties of polymers (MIP_DEHP, MIP_DBP). The obtained materials were characterized by a mesoporous structure with small, uniform, and porous grains. The surface area and total pore volume of MIP_DEHP were more than twice smaller than MIP_DBP, with a slightly larger pore diameter. Lower C content may indicate the formation of MIP_DEHP and MIP_DBP. The FTIR method confirmed the presence of functional groups –CH, –CO, –C=C and –C=O. The adsorption capacity of MIP_DEHP and MIP_DBP was 0.68 mg/g and 1.06 mg/g, respectively, and was consistent with the Freundlich isothermal adsorption model.
{"title":"Synthesis of molecularly printed methyl methacrylate-based polymers for the detection of di(2-ethylhexyl) phthalate and dibutyl phthalate","authors":"St. Fauziah, Nunuk Hariani Soekamto, Budi Prastawa, Herlina Rasyid, Nur Haedar, Muralia Hustim, Marlina Marlina, Magfirah Sulaiman, Ajuk Sapar","doi":"10.14314/polimery.2023.7.7","DOIUrl":"https://doi.org/10.14314/polimery.2023.7.7","url":null,"abstract":"Molecularly imprinted polymers (MIP) were obtained by precipitation polymerization for the detection of DEHP and DBP from polymer packaging in drinking water. MIP was obtained by cross-linking DEHP and DBP with methyl methacrylate (MMA) and trimethylolpropane trimethacrylate (TRIM). FTIR, SEM-EDS, UV-Vis and SAA were used to determine properties of polymers (MIP_DEHP, MIP_DBP). The obtained materials were characterized by a mesoporous structure with small, uniform, and porous grains. The surface area and total pore volume of MIP_DEHP were more than twice smaller than MIP_DBP, with a slightly larger pore diameter. Lower C content may indicate the formation of MIP_DEHP and MIP_DBP. The FTIR method confirmed the presence of functional groups –CH, –CO, –C=C and –C=O. The adsorption capacity of MIP_DEHP and MIP_DBP was 0.68 mg/g and 1.06 mg/g, respectively, and was consistent with the Freundlich isothermal adsorption model.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135922804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A new functionalized biopolymer was obtained by adding ethylenediaminetetraacetic acid to chitin and magnetite nanoparticles (Fe3O4). Thermogravimetric analysis was performed, and dielectric properties were examined. The obtained biopolymer showed better thermal stability, as evidenced by a higher onset temperature. The activation energy calculated using imaginary impedance data and Nyquist plots was found to be consistent. Moreover, the dielectric permittivity decreased rapidly with increasing frequency. At high frequencies, there was no dependence of dielectric loss on temperature and frequency. The obtained biopolymer can be used in many applications such as microwave devices, deflection yoke, high-frequency capacitors, sensors, etc.
{"title":"Novel multicomponent functionalized biopolymers with enhanced thermal and dielectric properties","authors":"Sanjeeta Rani, Syed Kashif Ali, Pawan Kumar, Kunwar Sugam Anugrah, Laishram Saya, Geetu Gambhir, Drashya Gautam, Sunita Hooda, Manisha Verma","doi":"10.14314/polimery.2023.7.4","DOIUrl":"https://doi.org/10.14314/polimery.2023.7.4","url":null,"abstract":"A new functionalized biopolymer was obtained by adding ethylenediaminetetraacetic acid to chitin and magnetite nanoparticles (Fe3O4). Thermogravimetric analysis was performed, and dielectric properties were examined. The obtained biopolymer showed better thermal stability, as evidenced by a higher onset temperature. The activation energy calculated using imaginary impedance data and Nyquist plots was found to be consistent. Moreover, the dielectric permittivity decreased rapidly with increasing frequency. At high frequencies, there was no dependence of dielectric loss on temperature and frequency. The obtained biopolymer can be used in many applications such as microwave devices, deflection yoke, high-frequency capacitors, sensors, etc.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":"69 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":"135470362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-06DOI: 10.14314/polimery.2023.6.4
Karina Rusin-Żurek, Stanisław Kuciel, Maria Kurańska
The effect of compatibilizer - ethylene-n-octene copolymer grafted with maleic anhydride(EOC-g-MAH) used in the amount of 3 wt% on tensile and flexural properties and impact strengthof bioPET with the addition of 10 wt% filler derived from organic waste (egg and mollusc shells, coffeegrounds) was investigated. EOC-g-MAH slightly decreased tensile strength, flexural strength, andmodulus of elasticity, while significantly increasing impact strength (up to 426%). Moreover, ability ofbioPET-based composites to dissipate mechanical energy was improved.
{"title":"The effect of funcionalized ethylene-n-octene copolymer on mechanical properties of bioPET with organic waste fillers","authors":"Karina Rusin-Żurek, Stanisław Kuciel, Maria Kurańska","doi":"10.14314/polimery.2023.6.4","DOIUrl":"https://doi.org/10.14314/polimery.2023.6.4","url":null,"abstract":"The effect of compatibilizer - ethylene-n-octene copolymer grafted with maleic anhydride(EOC-g-MAH) used in the amount of 3 wt% on tensile and flexural properties and impact strengthof bioPET with the addition of 10 wt% filler derived from organic waste (egg and mollusc shells, coffeegrounds) was investigated. EOC-g-MAH slightly decreased tensile strength, flexural strength, andmodulus of elasticity, while significantly increasing impact strength (up to 426%). Moreover, ability ofbioPET-based composites to dissipate mechanical energy was improved.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135204336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The effect of aromatic ring substitution in the polyester polyol molecule on its physicochemicalproperties and on the conditions of synthesis, fire resistance and thermal stability of polyurethanefoams was investigated. The greater number of terephthalic units in the polyol results in greater viscosityand reactivity during foam formation. The obtained foams were characterized by higher thermalstability (TGA) and fire resistance (oxygen index, single flame test).
{"title":"Influence of terephthalic and orthophthalic units on the properties of polyols and polyurethane foams","authors":"Wiesław Tarnawski, Mateusz Tokarski, Wiktoria Czernecka","doi":"10.14314/polimery.2023.6.5","DOIUrl":"https://doi.org/10.14314/polimery.2023.6.5","url":null,"abstract":"The effect of aromatic ring substitution in the polyester polyol molecule on its physicochemicalproperties and on the conditions of synthesis, fire resistance and thermal stability of polyurethanefoams was investigated. The greater number of terephthalic units in the polyol results in greater viscosityand reactivity during foam formation. The obtained foams were characterized by higher thermalstability (TGA) and fire resistance (oxygen index, single flame test).","PeriodicalId":20319,"journal":{"name":"Polimery","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135204337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-29DOI: 10.14314/polimery.2023.7.1
Małgorzata Oleksy, Klaudia Dynarowicz, David Aebisher
The article is a review of the literature on the use of polymers in medicine as biomaterials.Examples of the preparation of the most commonly used synthetic polymers in medicine, such as: polylactide(PLA), polyglycolide (PGA), polyhydrobutyrate (PHB), polycaprolactone (PCL) are described.The characteristics of ceramic materials: hydroxyapatite (HAp) and tricalcium phosphate (TCP) are alsopresented in terms of the use of synthetic biodegradable polymers as biofillers. The last part of articleis devoted to the functional properties of composites based on PLA with the addition of HAp and TCP.
{"title":"Polymer and composite materials used in medicine","authors":"Małgorzata Oleksy, Klaudia Dynarowicz, David Aebisher","doi":"10.14314/polimery.2023.7.1","DOIUrl":"https://doi.org/10.14314/polimery.2023.7.1","url":null,"abstract":"The article is a review of the literature on the use of polymers in medicine as biomaterials.Examples of the preparation of the most commonly used synthetic polymers in medicine, such as: polylactide(PLA), polyglycolide (PGA), polyhydrobutyrate (PHB), polycaprolactone (PCL) are described.The characteristics of ceramic materials: hydroxyapatite (HAp) and tricalcium phosphate (TCP) are alsopresented in terms of the use of synthetic biodegradable polymers as biofillers. The last part of articleis devoted to the functional properties of composites based on PLA with the addition of HAp and TCP.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136349438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-29DOI: 10.14314/polimery.2023.7.2
Małgorzata Oleksy, Klaudia Dynarowicz, David Aebisher
The article is a review of the literature on the use of polymers in medicine as biomaterials.Examples of the preparation of the most commonly used synthetic polymers in medicine, such as: polylactide(PLA), polyglycolide (PGA), polyhydrobutyrate (PHB), polycaprolactone (PCL) are described.The characteristics of ceramic materials: hydroxyapatite (HAp) and tricalcium phosphate (TCP) are alsopresented in terms of the use of synthetic biodegradable polymers as biofillers. The last part of articleis devoted to the functional properties of composites based on PLA with the addition of HAp and TCP.
{"title":"Polymer and composite materials used in medicine","authors":"Małgorzata Oleksy, Klaudia Dynarowicz, David Aebisher","doi":"10.14314/polimery.2023.7.2","DOIUrl":"https://doi.org/10.14314/polimery.2023.7.2","url":null,"abstract":"The article is a review of the literature on the use of polymers in medicine as biomaterials.Examples of the preparation of the most commonly used synthetic polymers in medicine, such as: polylactide(PLA), polyglycolide (PGA), polyhydrobutyrate (PHB), polycaprolactone (PCL) are described.The characteristics of ceramic materials: hydroxyapatite (HAp) and tricalcium phosphate (TCP) are alsopresented in terms of the use of synthetic biodegradable polymers as biofillers. The last part of articleis devoted to the functional properties of composites based on PLA with the addition of HAp and TCP.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136284096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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