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Thermal and physico-mechanical properties of biodegradable materials based on polyhydroxyalkanoates 聚羟基烷酸酯生物可降解材料的热物理力学性能
IF 1.6 4区 工程技术
Polimery Pub Date : 2023-01-02 DOI: 10.14314/polimery.2022.11.3
Igor Semeniuk, V. Kochubei, E. Karpenko, Y. Melnyk, V. Skorokhoda, N. Semenyuk
{"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":" ","pages":""},"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}
引用次数: 0
Mechanical and thermal properties of cotton-bamboo fabric/glass fiber epoxy composites 棉竹纤维/玻璃纤维环氧树脂复合材料的力学性能和热性能
IF 1.6 4区 工程技术
Polimery Pub Date : 2023-01-02 DOI: 10.14314/polimery.2022.11.4
Kailasam Chandrasekaran, Periyasamy Shanmugam, P. Senthilkumar
{"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":"1 1","pages":""},"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}
引用次数: 0
Hybrid polymer composites with enhanced energy absorption 增强能量吸收的杂化聚合物复合材料
IF 1.6 4区 工程技术
Polimery Pub Date : 2022-12-27 DOI: 10.14314/polimery.2022.11.2
K. Czech, M. Oleksy, Rafał Oliwa, A. Domańska
{"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":" ","pages":""},"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}
引用次数: 0
Vitamin E-loaded polymeric nanoparticles from biocompatible adipate-based copolymer obtained using the nanoprecipitation method 利用纳米沉淀法从生物相容性己二酸基共聚物中获得负载维生素e的聚合物纳米颗粒
IF 1.6 4区 工程技术
Polimery Pub Date : 2022-11-30 DOI: 10.14314/polimery.2022.11.1
Martyna Sokołowska, Maja Marchwiana, M. El Fray
{"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":" ","pages":""},"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}
引用次数: 1
Wpływ spieniania chemicznego na strukturę i wybrane właściwości PA6 wzmocnionego włóknem szklanym
IF 1.6 4区 工程技术
Polimery Pub Date : 2022-11-17 DOI: 10.14314/polimery.2022.10.1
{"title":"Wpływ spieniania chemicznego na strukturę i wybrane właściwości PA6 wzmocnionego włóknem szklanym","authors":"","doi":"10.14314/polimery.2022.10.1","DOIUrl":"https://doi.org/10.14314/polimery.2022.10.1","url":null,"abstract":"Zbadano wpływ procesu spieniania chemicznego na strukturę (SEM) oraz wybrane właściwościpoliamidu 6 wzmocnionego włóknem szklanym (30, 60 % mas.). Oznaczono gęstość, właściwościmechaniczne przy rozciąganiu i udarność Charpy’ego. Jako porofor stosowano Hydrocerol ITP 825w ilości 2% mas. Wielkość porów i stopień spieniania zależały od odległości od punku wtryskiwania.Najmniejszą wielkość porów (64 μm) stwierdzono w przypadku poliamidu zawierającego 60% mas.włókna szklanego.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":"231 18","pages":""},"PeriodicalIF":1.6,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41279471","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}
引用次数: 0
The influence of calcium carbonate and its modifications on the extrusion process and selected functional properties of polypropylene cast films 研究了碳酸钙及其改性剂对聚丙烯铸膜挤出工艺及功能性能的影响
IF 1.6 4区 工程技术
Polimery Pub Date : 2022-11-17 DOI: 10.14314/polimery.2022.10.6
{"title":"The influence of calcium carbonate and its modifications on the extrusion process and selected functional properties of polypropylene cast films","authors":"","doi":"10.14314/polimery.2022.10.6","DOIUrl":"https://doi.org/10.14314/polimery.2022.10.6","url":null,"abstract":"The purpose of the article was to determine the influence of calcium carbonate and its modification (with stearic acid) on selected properties of composite polypropylene films and their processing. Polypropylene composites containing, respectively, 5, 10, 20 and 30 wt% filler, were made in twin-screw extrusion process with cold granulation. Films, on the other hand, were produced in single-screw extrusion process (an extruder with a screw with diameter d = 20 mm and ratio l/d = 24) using a flat head (so-called cast films) and a chill roll type cooling and pull-back device. The pull-back rotational speed was selected so as to obtain films of a thickness of approx. 120 µm, irrespectively of the composite being processed. The assessment of the effect of the addition of applied fillers on the magnitude of the melt volume-flow rate (MVR) of polypropylene and the processing characteristic of extrusion process was made (the flow resistance and the variations in volumetric flow rate were determined). It was demonstrated how variations in the processability of polymeric material determined the correction of extrusion process setup parameters (pull-back system speed). The processability of composite films under extensional flow conditions was also determined by evaluating the extensional viscosity (ηE) of the composites. The strength values of composite films were determined under static tension conditions and in puncture tests. The effect of the content and modification of CaCO3 on the film haze and gloss was also assessed. The investigation carried out has demonstrated a direct effect of the addition of calcium carbonate and its modification on the processability and selected functional properties of composite films. The study has also proved that stearic acid is an effective modifier of processing properties, not only in shear flow conditions, but also under extensional flow conditions – smaller ηE values are exhibited by films containing modified calcium carbonate.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41666402","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}
引用次数: 0
Influence of various forms of cellulose on the mechanical properties of polymer composites modified in a constant magnetic field 恒磁场下不同形式纤维素对改性高分子复合材料力学性能的影响
IF 1.6 4区 工程技术
Polimery Pub Date : 2022-11-16 DOI: 10.14314/polimery.2022.10.4
E. Miękoś, M. Zieliński, D. Sroczyński, A. Fenyk
{"title":"Influence of various forms of cellulose on the mechanical properties of polymer composites modified in a constant magnetic field","authors":"E. Miękoś, M. Zieliński, D. Sroczyński, A. Fenyk","doi":"10.14314/polimery.2022.10.4","DOIUrl":"https://doi.org/10.14314/polimery.2022.10.4","url":null,"abstract":"The paper presents the study of polymer composites on epoxy resin matrix, polymerized in the environment of a constant magnetic field. The composites contained admixtures of various forms of cellulose – microcrystalline cellulose and cellulose from waste hemp straw fibers – in an amount ranging from 10 to 30 wt%. Changes in the mechanical properties due to the effect of a constant magnetic field with a magnetic induction value of B = 0.5 T. The composites additionally contained magnetic particles in the form of carbonyl iron, in the amount of 10 wt%.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2022-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49103197","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}
引用次数: 0
Environmentally hazard and toxic exoskeletons of marine crustaceans wastes in synthesizing N-deacetylated chitin 海洋甲壳类废弃物外骨骼合成n -去乙酰化几丁质的环境危害和毒性
IF 1.6 4区 工程技术
Polimery Pub Date : 2022-11-16 DOI: 10.14314/polimery.2022.10.5
Rasha E El-Mekawy
{"title":"Environmentally hazard and toxic exoskeletons of marine crustaceans wastes in synthesizing N-deacetylated chitin","authors":"Rasha E El-Mekawy","doi":"10.14314/polimery.2022.10.5","DOIUrl":"https://doi.org/10.14314/polimery.2022.10.5","url":null,"abstract":"High molecular weight chitosan was synthesized from shrimp shells. Chemical structure of chitosan was confirmed using FT-IR, XRD, TGA, and SEM analyses. Physicochemical properties of chitosan such as molecular weight (800 000 g/mol), deacetylation degree (80%), ash content (1%) indicating effectiveness of demineralization step in removing minerals, water binding capacity (4220%), and fat binding capacity (537%), were determined. FT-IR spectra exhibited characteristic joint band at 3365 cm-1 due to –OH and –NH2 regarding to the conversion of chitin acetyl group to NH2 of chitosan.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2022-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48240877","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}
引用次数: 0
Homo- and copolymerization of 2-benzothiazoylacrylamide with α-methyl styrene and methyl acrylate: synthesis, characterization and reactivity 2-苯并噻唑基丙烯酰胺与α-甲基苯乙烯和丙烯酸甲酯的共聚:合成、表征和反应性
IF 1.6 4区 工程技术
Polimery Pub Date : 2022-11-04 DOI: 10.14314/polimery.2022.10.3
A. Al-Mokaram, Ameen Hadi Mohammed, Hiba A. Ghani
{"title":"Homo- and copolymerization of 2-benzothiazoylacrylamide with α-methyl styrene and methyl acrylate: synthesis, characterization and reactivity","authors":"A. Al-Mokaram, Ameen Hadi Mohammed, Hiba A. Ghani","doi":"10.14314/polimery.2022.10.3","DOIUrl":"https://doi.org/10.14314/polimery.2022.10.3","url":null,"abstract":"2-benzothiazolyl acrylamide (BTA) monomer was synthesized by reacting of 2-aminobenzothiazole with acryloyl chloride. Homo- and copolymerization of this monomer with α-methylstyrene (MSt) and methyl acrylate (MA) was carried out in dimethylsulfoxide (DMSO) solution. The prepared homo-and copolymers were characterized by Fourier Transform Infrared (FTIR) and their thermal stability was studied by thermogravimetric analysis (TGA). The composition of copolymers and the reactivity coefficients (r1, r2) were determined on the basis of sulfur analysis using linearization methods proposed by Fineman-Ross and Kelen-Tudos and the Mayo-Lewis intersection method. The derived (r1, r2) for BTA-co-MSt and BTA-co-MA are: (0.197, 0.230) and (0.294, 4.314), respectively. The microstructure of the copolymers and the distribution of the monomer sequences in the copolymers were calculated statistically, the results obtained are consistent with the values (r1, r2). BTA with MSt form alternative copolymer whilst BTA-co-MA tends to be block with MA.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2022-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49180984","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}
引用次数: 0
Gamma-induced grafting of rice straw cellulose with polyvinylpyrrolidone γ诱导聚乙烯吡咯烷酮接枝稻草纤维素
IF 1.6 4区 工程技术
Polimery Pub Date : 2022-10-26 DOI: 10.14314/polimery.2022.9.6
M. Suhartini, Zetryana Puteri Tachrim, Niken Hayudanti Anggarini, R. Rahmawati, Amanda Prasetyani, June Melawati, D. Deswita, B. Sugeng
{"title":"Gamma-induced grafting of rice straw cellulose with polyvinylpyrrolidone","authors":"M. Suhartini, Zetryana Puteri Tachrim, Niken Hayudanti Anggarini, R. Rahmawati, Amanda Prasetyani, June Melawati, D. Deswita, B. Sugeng","doi":"10.14314/polimery.2022.9.6","DOIUrl":"https://doi.org/10.14314/polimery.2022.9.6","url":null,"abstract":"Cellulose obtained from rice straw was grafted with polyvinylpyrrolidone (Cell-g-PVP). The process was induced by simultaneous gamma iradiation (Co-60). The presence of the grafted PVP chains was confirmed by FT-IR, XRD and EDS methods. The influence of the iradiation dose (20 and 30 kGy) on the reaction efficiency and thermal stability of Cell-g-PVP was investigated. The grafting yield at the dose of 30 kGy was about 56%. The higher dose of radiation resulted in better thermal stability. The AAS results showed that Ni(II), Cu(II), and Cr(II) ions can be adsorbed by Cell-g-PVP. The order of ion metals adsorption capacity of Cell-g-PVP was Cu(II) > Ni(II) > Cr(II). The adsorption isotherm of Cu(II) metal ion using the Cell-g-PVP followed the Langmuir adsorption isotherm whereas the chemical adsorption and the adsorption energy were constant on all sides of the copolymer.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2022-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47515505","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}
引用次数: 0
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