发布求助
文献互助 智能选刊 最新文献

Polimery最新文献

筛选
英文 中文
Thermal properties of porous sodium polyacrylate/silica nanocomposites 多孔聚丙烯酸钠/二氧化硅纳米复合材料的热性能
IF 1.6 4区 工程技术
Polimery Pub Date : 2023-02-28 DOI: 10.14314/polimery.2023.2.2
A. Korobeinyk, G. Yurchenko, A. Matkovsky, V. Tertykh
{"title":"Thermal properties of porous sodium polyacrylate/silica nanocomposites","authors":"A. Korobeinyk, G. Yurchenko, A. Matkovsky, V. Tertykh","doi":"10.14314/polimery.2023.2.2","DOIUrl":"https://doi.org/10.14314/polimery.2023.2.2","url":null,"abstract":"Porous silica/sodium polyacrylate nanocomposites were obtained in a one-stage sol-gel process. The process involved acid hydrolysis of tetramethoxysilane (TMOS) in the presence of sodium salt of poly(acrylic acid) (SPA) in the molar ratio of TMOS/SPA from 2:1 to 8:1. The physical and thermal properties of the obtained nanocomposites were characterized by FTIR, SEM, TGA and adsorption analysis (BET, BJH). The mechanical and chemical treatment of the composite after the synthesis increased its surface area without significantly changing its thermal properties. The process enables pore size control.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48841224","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
Prediction of air permeability and effective thermal conductivity of multifilament polyester yarn by finite element analysis 聚酯复丝纱透气性和有效导热系数的有限元预测
IF 1.6 4区 工程技术
Polimery Pub Date : 2023-02-23 DOI: 10.14314/polimery.2023.1.2
Muhammad Owais Raza Siddiqui, Salma Farooq, M. D. Husain, Saira Faisal
{"title":"Prediction of air permeability and effective thermal conductivity of multifilament polyester yarn by finite element analysis","authors":"Muhammad Owais Raza Siddiqui, Salma Farooq, M. D. Husain, Saira Faisal","doi":"10.14314/polimery.2023.1.2","DOIUrl":"https://doi.org/10.14314/polimery.2023.1.2","url":null,"abstract":"The effective thermal conductivity and air permeability of a multifilament polyester yarn used in sports T-shirts was investigated by computer modeling using finite element analysis. It has been shown that the number of fibers, the porosity of the yarn and the proportion of fibers in the volume fraction of the yarn have a direct effect on the effective thermal conductivity and air permeability of the multifilament yarn. It was found that with the increase in the number of fibers, the porosity of the yarn decreases linearly, while the volume fraction of the fibers increases, and thus the effective thermal conductivity increases. In addition, air permeability decreases exponentially.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43221724","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
Equality in the creation of carbon dioxide equivalent 创造二氧化碳当量方面的平等
IF 1.6 4区 工程技术
Polimery Pub Date : 2023-02-07 DOI: 10.14314/polimery.2023.1.1
I. Čatić, Maja Rujnić Havstad, I. Jović, Alexandra Mihajlović
{"title":"Equality in the creation of carbon dioxide equivalent","authors":"I. Čatić, Maja Rujnić Havstad, I. Jović, Alexandra Mihajlović","doi":"10.14314/polimery.2023.1.1","DOIUrl":"https://doi.org/10.14314/polimery.2023.1.1","url":null,"abstract":"The article presents issues related to equality in the creation of carbon dioxide equivalent. The impact of the increase in the number of residents and roommates, waste generation systems, information and material waste, material waste generation, the age of plastics and digitization are discussed.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43336984","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
Synthesis and characterization of a citric and lipoic acids-derived dendrimer 柠檬酸和硫辛酸衍生物的合成和表征
IF 1.6 4区 工程技术
Polimery Pub Date : 2023-01-19 DOI: 10.14314/polimery.2023.1.4
R. Salgado-Delgado, A. Salgado-Delgado, A. Olarte-Paredes, J. J. García-Fuentes, T. López-Lara, J. Hernández-Zaragoza, E. García-Hernández, V. Castaño
{"title":"Synthesis and characterization of a citric and lipoic acids-derived dendrimer","authors":"R. Salgado-Delgado, A. Salgado-Delgado, A. Olarte-Paredes, J. J. García-Fuentes, T. López-Lara, J. Hernández-Zaragoza, E. García-Hernández, V. Castaño","doi":"10.14314/polimery.2023.1.4","DOIUrl":"https://doi.org/10.14314/polimery.2023.1.4","url":null,"abstract":"The paper describes the synthesis and characterization of two third generation dendrimers from citric acid and a variant with a dendron terminated with lipoic acid. FTIR and C NMR confirmed the presence of signals characteristic for the dendrimer functional groups OH, C-O, C=O, C-H and C-S. DSC showed that, unlike citric acid, the dendrimer is amorphous. SEM revealed changes in the structure of citric acid particles in each dendrimer generation. In addition, the structure was more homogeneous. Dendrimers are hydrophobic due to ester linkages. Contact angle > 90° confirms their hydrophobic character. Moreover, the dendrimer with a dendron terminated with lipoic acid absorbs Cu+2 and Fe+3metal ions, so it can be used as an adsorbent for heavy metals.","PeriodicalId":20319,"journal":{"name":"Polimery","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44407853","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
Influence of UV on the self-adhesive properties of silicone pressure-sensitive adhesives 紫外线对硅酮压敏胶自粘性能的影响
IF 1.6 4区 工程技术
Polimery Pub Date : 2023-01-19 DOI: 10.14314/polimery.2023.1.3
A. Antosik, Karolina Mozelewska, Konrad Gziut
{"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":" ","pages":""},"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}
引用次数: 1
Mechanical characterization of Abutilon Indicum fiber nonwoven fabric epoxy composite materials Abutilon Indicum纤维无纺布环氧复合材料的力学性能
IF 1.6 4区 工程技术
Polimery Pub Date : 2023-01-11 DOI: 10.14314/polimery.2022.11.7
Chinnan Murugan Mohanraj, Ramasamy Rameshkumar
{"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":" ","pages":""},"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}
引用次数: 0
Morphology and selected properties of kenaf fiber/cornhusk reinforced corn starch hybrid biocomposites 红麻纤维/玉米壳增强玉米淀粉复合生物复合材料的形态与性能选择
IF 1.6 4区 工程技术
Polimery Pub Date : 2023-01-11 DOI: 10.14314/polimery.2022.11.5
M. Hazrol, S. M. Sapuan, R. A. Ilyas, E. S. Zainudin, M. Zuhri, N. Abdul Wahab
{"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":" ","pages":""},"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}
引用次数: 1
Production and characterization of polyurethane/expanded graphite composites for industrial food preservation 工业食品保鲜用聚氨酯/膨胀石墨复合材料的制备与表征
IF 1.6 4区 工程技术
Polimery Pub Date : 2023-01-11 DOI: 10.14314/polimery.2022.11.6
Tuğba Güngör Ertuğral
{"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":" ","pages":""},"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}
引用次数: 0
Aminated PVC cross-linked with 2,2’-dichlorodiethyl ether as heavy metal absorber 胺化聚氯乙烯与2,2 ' -二氯乙醚交联作为重金属吸收剂
IF 1.6 4区 工程技术
Polimery Pub Date : 2023-01-11 DOI: 10.14314/polimery.2022.11.8
Adnen Mabrouki, Fayçel Bouzayene, S. Awatef, Fayçel Ammari
{"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":" ","pages":""},"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}
引用次数: 0
Wymagania dotyczące zawartości substancji szkodliwych w wyrobach rynkowych z tworzyw sztucznych i gumy. Cz. III. Sprzęt elektryczny i elektroniczny, baterie i akumulatory 对可销售塑料和橡胶产品中有害物质含量的要求。第三部分电气和电子设备、电池和蓄电池
IF 1.6 4区 工程技术
Polimery Pub Date : 2023-01-09 DOI: 10.14314/polimery.2023.1.5
D. Kolasa, J. Lach, K. Wróbel, K. Samsonowska, A. Kaszuba, A. Stępkowska, J. Wróbel
{"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":" ","pages":""},"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}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信