Pub Date : 2023-01-19DOI: 10.14314/polimery.2023.1.3
A. Antosik, Karolina Mozelewska, Konrad Gziut
The paper presents the results of research on the UV radiation influence on the self-adhesive properties of silicone adhesives. The adhesives were obtained by cross-linking commercial resins (PSA 590, Q2-7566) at the temperature of 110°C, using different amounts (0–3 wt%) of bis(2,4-dichlorobenzoyl) peroxide. Self-adhesive properties of adhesives such as adhesion, tack, and durability before and after aging were determined. The adhesives showed stable self-adhesive properties, however, the PSA 590 adhesive had a higher maximum operating temperature than the Q2-7566 adhesive.
{"title":"Influence of UV on the self-adhesive properties of silicone pressure-sensitive adhesives","authors":"A. Antosik, Karolina Mozelewska, Konrad Gziut","doi":"10.14314/polimery.2023.1.3","DOIUrl":"https://doi.org/10.14314/polimery.2023.1.3","url":null,"abstract":"The paper presents the results of research on the UV radiation influence on the self-adhesive properties of silicone adhesives. The adhesives were obtained by cross-linking commercial resins (PSA 590, Q2-7566) at the temperature of 110°C, using different amounts (0–3 wt%) of bis(2,4-dichlorobenzoyl) peroxide. Self-adhesive properties of adhesives such as adhesion, tack, and durability before and after aging were determined. The adhesives showed stable self-adhesive properties, however, the PSA 590 adhesive had a higher maximum operating temperature than the Q2-7566 adhesive.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47095959","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 : 2023-01-11DOI: 10.14314/polimery.2022.11.7
Chinnan Murugan Mohanraj, Ramasamy Rameshkumar
The effect of nonwoven Abutilon Indicum fiber content (20, 25, 30, 35, and 40 wt%) on the structure (FTIR, SEM) and selected mechanical and thermal (TGA) properties of epoxy resin was investigated. The best mechanical properties were obtained with a fiber content of 35 wt%. The tensile strength of the composite was about 40 MPa, the flexural strength over 60 MPa, and the compressive strength about 48 MPa. Moreover, the composite showed the fracture energy about 0.44 J.
{"title":"Mechanical characterization of Abutilon Indicum fiber nonwoven fabric epoxy composite materials","authors":"Chinnan Murugan Mohanraj, Ramasamy Rameshkumar","doi":"10.14314/polimery.2022.11.7","DOIUrl":"https://doi.org/10.14314/polimery.2022.11.7","url":null,"abstract":"The effect of nonwoven Abutilon Indicum fiber content (20, 25, 30, 35, and 40 wt%) on the structure (FTIR, SEM) and selected mechanical and thermal (TGA) properties of epoxy resin was investigated. The best mechanical properties were obtained with a fiber content of 35 wt%. The tensile strength of the composite was about 40 MPa, the flexural strength over 60 MPa, and the compressive strength about 48 MPa. Moreover, the composite showed the fracture energy about 0.44 J.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47954207","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 : 2023-01-11DOI: 10.14314/polimery.2022.11.5
M. Hazrol, S. M. Sapuan, R. A. Ilyas, E. S. Zainudin, M. Zuhri, N. Abdul Wahab
The study examined the effect of the cornhusk fibers (CHF) content on the structure, physical, mechanical and water barrier properties of composites obtained on the basis of corn starch (CS) and kenaf fiber (KF), used in the amount of 6 wt%. Sorbitol in the amount of 30 wt% was used as a plasticizer. Hybrid biocomposite films were obtained using the solution casting technique. The addition of CHF reduced the water absorption and solubility of the film in water. Increasing the CHF content in the composite resulted in greater film thickness, weight and density. Thanks to good biocompatibility (FESEM) the composites showed higher tensile strength and Young’s modulus. However, elongation at break was lower. FTIR results confirmed the intermolecular hydrogen bonding between the matrix and the fibers. The best properties were obtained at 6 wt% CHF content.
{"title":"Morphology and selected properties of kenaf fiber/cornhusk reinforced corn starch hybrid biocomposites","authors":"M. Hazrol, S. M. Sapuan, R. A. Ilyas, E. S. Zainudin, M. Zuhri, N. Abdul Wahab","doi":"10.14314/polimery.2022.11.5","DOIUrl":"https://doi.org/10.14314/polimery.2022.11.5","url":null,"abstract":"The study examined the effect of the cornhusk fibers (CHF) content on the structure, physical, mechanical and water barrier properties of composites obtained on the basis of corn starch (CS) and kenaf fiber (KF), used in the amount of 6 wt%. Sorbitol in the amount of 30 wt% was used as a plasticizer. Hybrid biocomposite films were obtained using the solution casting technique. The addition of CHF reduced the water absorption and solubility of the film in water. Increasing the CHF content in the composite resulted in greater film thickness, weight and density. Thanks to good biocompatibility (FESEM) the composites showed higher tensile strength and Young’s modulus. However, elongation at break was lower. FTIR results confirmed the intermolecular hydrogen bonding between the matrix and the fibers. The best properties were obtained at 6 wt% CHF content.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45512564","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 : 2023-01-11DOI: 10.14314/polimery.2022.11.6
Tuğba Güngör Ertuğral
Thermal insulation materials extend the shelf life of food and reduce energy consumption. Polyurethane (PU) insulation materials are often used to keep food hot and cold. Improving the thermal insulation properties of PU can significantly contribute to energy savings and lower food-related costs in the food and pharmaceutical industries. Polyurethane/expanded graphite (PU/EG) composites were obtained by hot-pressing by adding expanded graphite (EG) to PU foams. Composites with 0.05%, 5%, and 10% EG were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), and thermogravimetric analysis (TGA).
{"title":"Production and characterization of polyurethane/expanded graphite composites for industrial food preservation","authors":"Tuğba Güngör Ertuğral","doi":"10.14314/polimery.2022.11.6","DOIUrl":"https://doi.org/10.14314/polimery.2022.11.6","url":null,"abstract":"Thermal insulation materials extend the shelf life of food and reduce energy consumption. Polyurethane (PU) insulation materials are often used to keep food hot and cold. Improving the thermal insulation properties of PU can significantly contribute to energy savings and lower food-related costs in the food and pharmaceutical industries. Polyurethane/expanded graphite (PU/EG) composites were obtained by hot-pressing by adding expanded graphite (EG) to PU foams. Composites with 0.05%, 5%, and 10% EG were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), and thermogravimetric analysis (TGA).","PeriodicalId":20319,"journal":{"name":"Polimery","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48371439","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 : 2023-01-11DOI: 10.14314/polimery.2022.11.8
Adnen Mabrouki, Fayçel Bouzayene, S. Awatef, Fayçel Ammari
The paper describes the chemical modification of PVC consisting in the introduction of amino groups (1,4-dioxane, diethylenetriamine), and then cross-linking with dichlorodiethyl ether. The optimal extraction time was obtained for the polymer that had more chlorine atoms substituted with diethylenetriamine groups and ether. The obtained polymers were characterized by infrared spectroscopy (FTIR), elemental analysis (CHN) and differential thermal analysis (DTA).
{"title":"Aminated PVC cross-linked with 2,2’-dichlorodiethyl ether as heavy metal absorber","authors":"Adnen Mabrouki, Fayçel Bouzayene, S. Awatef, Fayçel Ammari","doi":"10.14314/polimery.2022.11.8","DOIUrl":"https://doi.org/10.14314/polimery.2022.11.8","url":null,"abstract":"The paper describes the chemical modification of PVC consisting in the introduction of amino groups (1,4-dioxane, diethylenetriamine), and then cross-linking with dichlorodiethyl ether. The optimal extraction time was obtained for the polymer that had more chlorine atoms substituted with diethylenetriamine groups and ether. The obtained polymers were characterized by infrared spectroscopy (FTIR), elemental analysis (CHN) and differential thermal analysis (DTA).","PeriodicalId":20319,"journal":{"name":"Polimery","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42537754","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 : 2023-01-09DOI: 10.14314/polimery.2023.1.5
D. Kolasa, J. Lach, K. Wróbel, K. Samsonowska, A. Kaszuba, A. Stępkowska, J. Wróbel
Artykuł jest kontynuacją przeglądu obowiązujących aktów prawnych dotyczących bezpieczeństwa produktów wprowadzanych na rynek Unii Europejskiej. Przegląd, w części III dotyczący przepisów w zakresie kontroli substancji szkodliwych w sprzęcie elektrycznym i elektronicznym oraz bateriach i akumulatorach, obejmuje zarówno akty prawne UE, jak i akty krajowe transponujące przepisy unijne do prawa polskiego w tym zakresie.
{"title":"Wymagania dotyczące zawartości substancji szkodliwych w wyrobach rynkowych z tworzyw sztucznych i gumy. Cz. III. Sprzęt elektryczny i elektroniczny, baterie i akumulatory","authors":"D. Kolasa, J. Lach, K. Wróbel, K. Samsonowska, A. Kaszuba, A. Stępkowska, J. Wróbel","doi":"10.14314/polimery.2023.1.5","DOIUrl":"https://doi.org/10.14314/polimery.2023.1.5","url":null,"abstract":"Artykuł jest kontynuacją przeglądu obowiązujących aktów prawnych dotyczących bezpieczeństwa produktów wprowadzanych na rynek Unii Europejskiej. Przegląd, w części III dotyczący przepisów w zakresie kontroli substancji szkodliwych w sprzęcie elektrycznym i elektronicznym oraz bateriach i akumulatorach, obejmuje zarówno akty prawne UE, jak i akty krajowe transponujące przepisy unijne do prawa polskiego w tym zakresie.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47382793","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 : 2023-01-02DOI: 10.14314/polimery.2022.11.4
Kailasam Chandrasekaran, Periyasamy Shanmugam, P. Senthilkumar
Five-layer epoxy composites consisting of two outer layers made of glass fiber and three inner layers of cotton-bamboo fabric were obtained by compression molding. The influence of glass fiber content (35, 40, 45 and 50 wt%) and the order of stacking laminate layers on the mechanical properties (tensile, flexural, compressive, impact strength), thermal properties (TGA) and structure (FTIR, SEM) of the composites was investigated. The best mechanical and thermal properties were obtained with the content of 45 wt% glass fiber.
{"title":"Mechanical and thermal properties of cotton-bamboo fabric/glass fiber epoxy composites","authors":"Kailasam Chandrasekaran, Periyasamy Shanmugam, P. Senthilkumar","doi":"10.14314/polimery.2022.11.4","DOIUrl":"https://doi.org/10.14314/polimery.2022.11.4","url":null,"abstract":"Five-layer epoxy composites consisting of two outer layers made of glass fiber and three inner layers of cotton-bamboo fabric were obtained by compression molding. The influence of glass fiber content (35, 40, 45 and 50 wt%) and the order of stacking laminate layers on the mechanical properties (tensile, flexural, compressive, impact strength), thermal properties (TGA) and structure (FTIR, SEM) of the composites was investigated. The best mechanical and thermal properties were obtained with the content of 45 wt% glass fiber.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41409929","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 : 2023-01-02DOI: 10.14314/polimery.2022.11.3
Igor Semeniuk, V. Kochubei, E. Karpenko, Y. Melnyk, V. Skorokhoda, N. Semenyuk
Thermal and physico-mechanical properties of polyhydroxyalkanoates of Rhodococcus erythropolis Au-1, Pseudomonas sp. PS-17, Azotobacter vinelandii N-15 and polyhydroxybutyrate/polylactide mixtures were identified. Modifying polyhydroxybutyrate with polylactide improves physical and mechanical characteristics such as heat resistance, rigidity, and brittleness. An increase in the content of polylactide in mixtures leads to a decrease in the thermal stability of the samples and an increase in relative elongation. Polyhydroxybutyrate/ polylactide mixtures are recommended as packaging materials for food, agricultural, and pharmaceutical products.
{"title":"Thermal and physico-mechanical properties of biodegradable materials based on polyhydroxyalkanoates","authors":"Igor Semeniuk, V. Kochubei, E. Karpenko, Y. Melnyk, V. Skorokhoda, N. Semenyuk","doi":"10.14314/polimery.2022.11.3","DOIUrl":"https://doi.org/10.14314/polimery.2022.11.3","url":null,"abstract":"Thermal and physico-mechanical properties of polyhydroxyalkanoates of Rhodococcus erythropolis Au-1, Pseudomonas sp. PS-17, Azotobacter vinelandii N-15 and polyhydroxybutyrate/polylactide mixtures were identified. Modifying polyhydroxybutyrate with polylactide improves physical and mechanical characteristics such as heat resistance, rigidity, and brittleness. An increase in the content of polylactide in mixtures leads to a decrease in the thermal stability of the samples and an increase in relative elongation. Polyhydroxybutyrate/ polylactide mixtures are recommended as packaging materials for food, agricultural, and pharmaceutical products.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42999393","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 : 2022-12-27DOI: 10.14314/polimery.2022.11.2
K. Czech, M. Oleksy, Rafał Oliwa, A. Domańska
This paper presents the influence of the type and structure of reinforcement, on the epoxy resin matrix polymer composites mechanical and ballistic properties. Aramid, basalt, glass fabrics and their hybrid systems were used as reinforcement. Impact strength according to Izod and "falling arrowhead", flexural strength and structure of the obtained composites were tested. The specific gravity was also determined. The aramid-glass hybrid composites showed high flexural strength (397 MPa) and Young's modulus (21 GPa). However, aramid-basalt composites had high impact strength (116 kJ/m2) and impact energy absorption (45 J).
{"title":"Hybrid polymer composites with enhanced energy absorption","authors":"K. Czech, M. Oleksy, Rafał Oliwa, A. Domańska","doi":"10.14314/polimery.2022.11.2","DOIUrl":"https://doi.org/10.14314/polimery.2022.11.2","url":null,"abstract":"This paper presents the influence of the type and structure of reinforcement, on the epoxy resin matrix polymer composites mechanical and ballistic properties. Aramid, basalt, glass fabrics and their hybrid systems were used as reinforcement. Impact strength according to Izod and \"falling arrowhead\", flexural strength and structure of the obtained composites were tested. The specific gravity was also determined. The aramid-glass hybrid composites showed high flexural strength (397 MPa) and Young's modulus (21 GPa). However, aramid-basalt composites had high impact strength (116 kJ/m2) and impact energy absorption (45 J).","PeriodicalId":20319,"journal":{"name":"Polimery","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46186728","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 : 2022-11-30DOI: 10.14314/polimery.2022.11.1
Martyna Sokołowska, Maja Marchwiana, M. El Fray
An enzymatic synthesis of new aliphatic biopolyesters - poly(butylene adipate)-co-(dilinol adipate) (PBA-DLA) with the use of monomers obtained from natural sources was carried out. Lipase B from the strain Candida antarctica (CALB) was used as a biocatalyst. The chemical structure of the PBA-DLA copolyester was confirmed by 1H NMR. In vitro biological studies did not show its cytotoxic effect on mouse fibroblast cells. PBA-DLA nanoparticles obtained in a single-stage nanoprecipitation process were used to encapsulate hydrophobic α-tocopherol (α-TP), the main component of vitamin E, obtaining an encapsulation efficiency of 48−74% (EE%) depending on the concentration of α-TP (2.5 ; 5; 10 mg/ml), which was confirmed by dynamic light scattering (DLS) analysis, ultraviolet spectroscopy (UV-VIS) and 1H NMR.
{"title":"Vitamin E-loaded polymeric nanoparticles from biocompatible adipate-based copolymer obtained using the nanoprecipitation method","authors":"Martyna Sokołowska, Maja Marchwiana, M. El Fray","doi":"10.14314/polimery.2022.11.1","DOIUrl":"https://doi.org/10.14314/polimery.2022.11.1","url":null,"abstract":"An enzymatic synthesis of new aliphatic biopolyesters - poly(butylene adipate)-co-(dilinol adipate) (PBA-DLA) with the use of monomers obtained from natural sources was carried out. Lipase B from the strain Candida antarctica (CALB) was used as a biocatalyst. The chemical structure of the PBA-DLA copolyester was confirmed by 1H NMR. In vitro biological studies did not show its cytotoxic effect on mouse fibroblast cells. PBA-DLA nanoparticles obtained in a single-stage nanoprecipitation process were used to encapsulate hydrophobic α-tocopherol (α-TP), the main component of vitamin E, obtaining an encapsulation efficiency of 48−74% (EE%) depending on the concentration of α-TP (2.5 ; 5; 10 mg/ml), which was confirmed by dynamic light scattering (DLS) analysis, ultraviolet spectroscopy (UV-VIS) and 1H NMR.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48010599","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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