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Impact of controlled extensional flow during extrusion of PP, PVDF and LDPE PP、PVDF和LDPE挤出过程中控制拉伸流动的影响
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20210085
M. A. Goes, J. P. Santos, B. Carvalho
{"title":"Impact of controlled extensional flow during extrusion of PP, PVDF and LDPE","authors":"M. A. Goes, J. P. Santos, B. Carvalho","doi":"10.1590/0104-1428.20210085","DOIUrl":"https://doi.org/10.1590/0104-1428.20210085","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67121194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tailoring sustainable compounds using eggshell membrane as biobased epoxy catalyst 使用蛋壳膜作为生物基环氧催化剂来定制可持续化合物
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20210088
J. J. P. Barros, N. G. Jaques, I. D. S. Silva, A. Albuquerque, A. M. Araújo, R. Wellen
{"title":"Tailoring sustainable compounds using eggshell membrane as biobased epoxy catalyst","authors":"J. J. P. Barros, N. G. Jaques, I. D. S. Silva, A. Albuquerque, A. M. Araújo, R. Wellen","doi":"10.1590/0104-1428.20210088","DOIUrl":"https://doi.org/10.1590/0104-1428.20210088","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67121227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","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 processing parameters on mechanical and thermal behavior of PLA/PBAT blend 工艺参数对PLA/PBAT共混物力学和热性能的影响
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20220018
Virnna Cristhielle Santana Barbosa, A. M. F. Sousa, A. L. N. Silva
{"title":"Influence of processing parameters on mechanical and thermal behavior of PLA/PBAT blend","authors":"Virnna Cristhielle Santana Barbosa, A. M. F. Sousa, A. L. N. Silva","doi":"10.1590/0104-1428.20220018","DOIUrl":"https://doi.org/10.1590/0104-1428.20220018","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67121696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Torsion modulus with CaCO3 fillers in unsaturated polyester resin - mechanical spectroscopy 不饱和聚酯树脂中CaCO3填料的扭转模量-力学光谱
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20210105
C. A. Pintão, Airton Baggio, Lucas Pereira Piedade, L. Sanchez, Gilberto de Magalhães Bento Gonçalves
{"title":"Torsion modulus with CaCO3 fillers in unsaturated polyester resin - mechanical spectroscopy","authors":"C. A. Pintão, Airton Baggio, Lucas Pereira Piedade, L. Sanchez, Gilberto de Magalhães Bento Gonçalves","doi":"10.1590/0104-1428.20210105","DOIUrl":"https://doi.org/10.1590/0104-1428.20210105","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67121078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bioplastic composed of starch and micro-cellulose from waste mango: mechanical properties and biodegradation 废芒果淀粉和微纤维素组成的生物塑料:力学性能和生物降解
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20210031
R. Rendón-Villalobos, M. A. Lorenzo-Santiago, Roberto Olvera-Guerra, C. A. Trujillo-Hernández
{"title":"Bioplastic composed of starch and micro-cellulose from waste mango: mechanical properties and biodegradation","authors":"R. Rendón-Villalobos, M. A. Lorenzo-Santiago, Roberto Olvera-Guerra, C. A. Trujillo-Hernández","doi":"10.1590/0104-1428.20210031","DOIUrl":"https://doi.org/10.1590/0104-1428.20210031","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67120735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Fatigue damage propagation and creep behavior on sisal/epoxy composites 剑麻/环氧复合材料的疲劳损伤扩展与蠕变行为
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20210093
Mateus da Silva Batista, L. A. Teixeira, Alisson de Souza Louly, Sayra Oliveira Silva, S. Luz
{"title":"Fatigue damage propagation and creep behavior on sisal/epoxy composites","authors":"Mateus da Silva Batista, L. A. Teixeira, Alisson de Souza Louly, Sayra Oliveira Silva, S. Luz","doi":"10.1590/0104-1428.20210093","DOIUrl":"https://doi.org/10.1590/0104-1428.20210093","url":null,"abstract":"The lack of knowledge about the behavior under creep and fatigue limits the use of polymeric composites reinforced with natural fibers. Thus, this work assessed the behavior of epoxy composites reinforced with sisal fibers under tensile, fatigue, and creep tests. Also, thermogravimetry and scanning electron microscopy assessed the sodium hydroxide (NaOH) treatment efficiency in sisal fibers. Further, differential scanning calorimetry determined the degree of cure of the composites, and stereomicroscopy allowed the evaluation of the surface’s fracture. As a result, the tensile strength of the composite was 1.4 times the value of neat epoxy resin after 100,000 cycles in the fatigue test. Moreover, when loaded with 20% of the maximum tensile strength, it is estimated that the composite resists 200,000 h without rupturing by creep. To conclude, the efficient adhesion between sisal fibers and epoxy obtained by NaOH treatment allowed good mechanical behavior to the epoxy composite.","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67121316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Physical-mechanical behavior of nitrile rubber-synthetic mica nanocomposites 丁腈橡胶-合成云母纳米复合材料的物理力学性能
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20210102
Janis Schutte Nunes, E. N. Ito, Cléverson Fernandes Senra Gabriel, Thiago Castro Lopes, R. Nunes
{"title":"Physical-mechanical behavior of nitrile rubber-synthetic mica nanocomposites","authors":"Janis Schutte Nunes, E. N. Ito, Cléverson Fernandes Senra Gabriel, Thiago Castro Lopes, R. Nunes","doi":"10.1590/0104-1428.20210102","DOIUrl":"https://doi.org/10.1590/0104-1428.20210102","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67121007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","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 native and modified bitter yam starch grafted with acrylonitrile 丙烯腈接枝天然及改性苦山药淀粉的合成与表征
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20220020
F. D. Adewumi, L. Lajide, E. Adewole, Jonanthan Abidemi Johnson
{"title":"Synthesis and characterization of native and modified bitter yam starch grafted with acrylonitrile","authors":"F. D. Adewumi, L. Lajide, E. Adewole, Jonanthan Abidemi Johnson","doi":"10.1590/0104-1428.20220020","DOIUrl":"https://doi.org/10.1590/0104-1428.20220020","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67121808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Latex and natural rubber: recent advances for biomedical applications 乳胶和天然橡胶:生物医学应用的最新进展
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20210114
Karina Luzia Andrade, H. Ramlow, J. Floriano, E. D. Acosta, F. Faita, R. Machado
{"title":"Latex and natural rubber: recent advances for biomedical applications","authors":"Karina Luzia Andrade, H. Ramlow, J. Floriano, E. D. Acosta, F. Faita, R. Machado","doi":"10.1590/0104-1428.20210114","DOIUrl":"https://doi.org/10.1590/0104-1428.20210114","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67121840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Scaffold based on castor oil as an osteoconductive matrix in bone repair: biocompatibility analysis 以蓖麻油为骨传导基质的骨修复支架:生物相容性分析
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.210018
F. Lima, Luis Felipe Matos, Isnayra Kerolaynne Carneiro Pacheco, F. Reis, J. Câmara, J. Pierote, José Milton Matos, Alessandra A. Ribeiro, W. Moura, Ana Cristina Fialho
{"title":"Scaffold based on castor oil as an osteoconductive matrix in bone repair: biocompatibility analysis","authors":"F. Lima, Luis Felipe Matos, Isnayra Kerolaynne Carneiro Pacheco, F. Reis, J. Câmara, J. Pierote, José Milton Matos, Alessandra A. Ribeiro, W. Moura, Ana Cristina Fialho","doi":"10.1590/0104-1428.210018","DOIUrl":"https://doi.org/10.1590/0104-1428.210018","url":null,"abstract":"e Química Fina, Universidade Católica Portuguesa, Porto, Portugal *jvfrazao92@hotmail.com Obstract To analyze the biocompatibility of the scaffold produced from a natural polymer derived from castor oil through hemolytic activity and antimicrobial activity, to enable the clinical application. Three in vitro tests were performed: Hemolytic activity test - Polymer partially dissolved in contact with blood agar; Hemolytic activity test in sheep’s blood - Polymer extract with red blood cells solution; Antimicrobial activity test - Solid polymer in direct contact with E. Coli and S. Aureus. For hemolytic tests, none of the samples showed hemolysis. Negative hemolytic activity is a good indicator, as the maintenance of the blood clot in the area of the lesion is essential for the formation of new tissue. For the antimicrobial activity test, no significant activity was observed against the bacteria used. The polymer is not toxic to red blood cells, being","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"79 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67124663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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