发布求助
文献互助 智能选刊 最新文献

Polimeros-ciencia E Tecnologia最新文献

筛选
英文 中文
Epoxy hybrid composites reinforced with nanodiamond-silica for abrasive applications 磨料用纳米金刚石-二氧化硅增强环氧复合材料
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2021-01-01 DOI: 10.1590/0104-1428.20210036
Marcos Antônio Barcelos, Mariana Valinhos Barcelos, G. R. D. Almeida Neto, A. C. Bozzi, R. Rodriguez
{"title":"Epoxy hybrid composites reinforced with nanodiamond-silica for abrasive applications","authors":"Marcos Antônio Barcelos, Mariana Valinhos Barcelos, G. R. D. Almeida Neto, A. C. Bozzi, R. Rodriguez","doi":"10.1590/0104-1428.20210036","DOIUrl":"https://doi.org/10.1590/0104-1428.20210036","url":null,"abstract":"Vitória, ES, Brasil *mbbarcelos@yahoo.com.br Obstract In this work, a ternary composite of epoxy filled with ND and MS was produced for abrasive applications. Surfactants (oleic acid (OA), sodium dodecyl sulfate (SDS) and Triton TX-100 (TX-100)) were used to improve the particle dispersion and, consequently, the composite properties. The elastic modulus increased up to 76% for the sample with 1 wt% ND and 5 wt% ND using TX-100 (1ND5MS-TX100). Regardless of the filler concentration, the particles did not modify the thermal degradation behavior of the epoxy. Thermogravimetric (TGA) and dynamic mechanical (DMA) analyses suggest a strong particle-matrix interface, also evidenced in scanning electron microscope (SEM) micrographs. The composites presented superior tribological performance. 1ND5MS-TX100 presented a wear rate of 2.19 x 10 -3 mm 3 .Nm -1 , 61.3% lower than the epoxy. Also, all composites significantly reduced the roughness of the marble, being proportional to the abrasives concentration. Overall, composites with","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"5 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67120754","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
Effect of drying different inclusion plasters on the mechanical properties of thermoactivated acrylic resins 不同包体膏干燥对热活化丙烯酸树脂力学性能的影响
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2021-01-01 DOI: 10.1590/0104-1428.20210049
T. J. Paes-Junior, N. R. Rossi, Tayná Mendes Inácio de Carvalho, V. Macedo, Michelle de Sá dos Santos Gomes, L. Nakano, C. M. Inagati
{"title":"Effect of drying different inclusion plasters on the mechanical properties of thermoactivated acrylic resins","authors":"T. J. Paes-Junior, N. R. Rossi, Tayná Mendes Inácio de Carvalho, V. Macedo, Michelle de Sá dos Santos Gomes, L. Nakano, C. M. Inagati","doi":"10.1590/0104-1428.20210049","DOIUrl":"https://doi.org/10.1590/0104-1428.20210049","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67120579","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
Increasing the physical and combustion performance of Oriental beech by impregnating borates and coating liquid glass 通过浸渍硼酸盐和涂覆液体玻璃来提高东方山毛榉的物理和燃烧性能
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2021-01-01 DOI: 10.1590/0104-1428.20210041
Yilmaz Anil Gunbekler, Hilmi Toker, Ç. Altay, Mustafa Kucuktuvek, Ergun Baysal
{"title":"Increasing the physical and combustion performance of Oriental beech by impregnating borates and coating liquid glass","authors":"Yilmaz Anil Gunbekler, Hilmi Toker, Ç. Altay, Mustafa Kucuktuvek, Ergun Baysal","doi":"10.1590/0104-1428.20210041","DOIUrl":"https://doi.org/10.1590/0104-1428.20210041","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67120934","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
Three Decades Sharing Polymer Science 共享高分子科学的三十年
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2021-01-01 DOI: 10.1590/0104-1428.ed3103
S. Canevarolo
{"title":"Three Decades Sharing Polymer Science","authors":"S. Canevarolo","doi":"10.1590/0104-1428.ed3103","DOIUrl":"https://doi.org/10.1590/0104-1428.ed3103","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67125481","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
Structural and optical properties o plasma-deposited a-C:H:Si:O:N films 等离子体沉积a-C:H:Si: o:N薄膜的结构和光学特性
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2021-01-01 DOI: 10.1590/0104-1428.210043
Juliana F.S.C. Lopes, Jean Tardelli, E. Rangel, Steven Frederick Durrant
{"title":"Structural and optical properties o plasma-deposited a-C:H:Si:O:N films","authors":"Juliana F.S.C. Lopes, Jean Tardelli, E. Rangel, Steven Frederick Durrant","doi":"10.1590/0104-1428.210043","DOIUrl":"https://doi.org/10.1590/0104-1428.210043","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67125882","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
10-(pyren-1-yl)-10h-phenothiazine and pyrene as organic catalysts for photoinitiated ATRP of 4-vinylpyridine 10-(芘-1-基)-10 -吩噻嗪和芘作为4-乙烯基吡啶光引发ATRP的有机催化剂
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2021-01-01 DOI: 10.1590/0104-1428.08120
L. T. Nguyen, Hung Q. Pham, Duc Anh Nguyen, L. Nguyen, K. Huynh, Hai Le Tran, P. Mai, H. T. Nguyen, L. Nguyen, T. Truong
{"title":"10-(pyren-1-yl)-10h-phenothiazine and pyrene as organic catalysts for photoinitiated ATRP of 4-vinylpyridine","authors":"L. T. Nguyen, Hung Q. Pham, Duc Anh Nguyen, L. Nguyen, K. Huynh, Hai Le Tran, P. Mai, H. T. Nguyen, L. Nguyen, T. Truong","doi":"10.1590/0104-1428.08120","DOIUrl":"https://doi.org/10.1590/0104-1428.08120","url":null,"abstract":"1National Key Laboratory of Polymer and Composite Materials, Ho Chi Minh City University of Technology – HCMUT, Vietnam National University–Ho Chi Minh City – VNU–HCM, Ho Chi Minh City, Vietnam 2Faculty of Chemical Engineering, Ho Chi Minh City University of Technology – HCMUT, Vietnam National University Ho Chi Minh City VNU–HCM, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam 3Faculty of Materials Technology, Ho Chi Minh City University of Technology HCMUT, Vietnam National University – Ho Chi Minh City VNU–HCM, Ho Chi Minh City, Vietnam","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67119878","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
Polyaniline-based electrospun polycaprolactone nanofibers: preparation and characterization 聚苯胺基静电纺聚己内酯纳米纤维的制备与表征
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2021-01-01 DOI: 10.1590/0104-1428.09320
Juliana Donato de Almeida Cantalice, E. G. Mazzini Júnior, J. Freitas, Rosanny Christhinny da Silva, R. Faez, L. Costa, A. Ribeiro
{"title":"Polyaniline-based electrospun polycaprolactone nanofibers: preparation and characterization","authors":"Juliana Donato de Almeida Cantalice, E. G. Mazzini Júnior, J. Freitas, Rosanny Christhinny da Silva, R. Faez, L. Costa, A. Ribeiro","doi":"10.1590/0104-1428.09320","DOIUrl":"https://doi.org/10.1590/0104-1428.09320","url":null,"abstract":"Obstract This work provides a convenient strategy for preparation of conducting polycaprolactone (PCL)/polyaniline (PAni) nanofibers, useful for development of optoelectronic sensors and devices. PCL/PAni nanofibers were obtained by electrospinning technique and characterized by SEM, FTIR, thermal analysis, and DC electrical conductivity. The influence of the experimental conditions in the electrospinning process, such as the applied voltage, on the nanofiber morphology was discussed in detail. Incorporation of PAni into PCL nanofibers significantly increased the electrical conductivity from a non-detectable level for the neat PCL to 0.032 ± 0.022 S/cm for the nanofibers containing 7.5 wt.% PAni. Therefore, electrospun PCL/PAni nanofiber mats presented optical and electrical properties, that awaken the possibility of applications for these materials as acid-base sensors and electrochromic","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67120176","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: 3
Antimicrobial activity of silver composites obtained from crosslinked polystyrene with polyHIPE structures 聚乙烯结构交联聚苯乙烯制备的银复合材料的抗菌活性
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2021-01-01 DOI: 10.1590/0104-1428.20210005
Roberta Trovão Santos, Nathália Smith Santos, M. A. Oliveira, Fernanda de Andrade Buás Campeão, Maria Aparecida Larrubia Granado Moreira Rodrigues Mandu, M. Marques, L. D. Costa
{"title":"Antimicrobial activity of silver composites obtained from crosslinked polystyrene with polyHIPE structures","authors":"Roberta Trovão Santos, Nathália Smith Santos, M. A. Oliveira, Fernanda de Andrade Buás Campeão, Maria Aparecida Larrubia Granado Moreira Rodrigues Mandu, M. Marques, L. D. Costa","doi":"10.1590/0104-1428.20210005","DOIUrl":"https://doi.org/10.1590/0104-1428.20210005","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67120518","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
Modification of poly(lactic acid) filament with expandable graphite for additive manufacturing using fused filament fabrication (FFF): effect on thermal and mechanical properties 熔融增材制造用可膨胀石墨改性聚乳酸长丝:对热性能和力学性能的影响
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2021-01-01 DOI: 10.1590/0104-1428.20210013
João Miguel Ayres Melillo, I. Pereira, A. C. Mottin, F. Araújo
{"title":"Modification of poly(lactic acid) filament with expandable graphite for additive manufacturing using fused filament fabrication (FFF): effect on thermal and mechanical properties","authors":"João Miguel Ayres Melillo, I. Pereira, A. C. Mottin, F. Araújo","doi":"10.1590/0104-1428.20210013","DOIUrl":"https://doi.org/10.1590/0104-1428.20210013","url":null,"abstract":"Fused Filament Fabrication, better known as Fused Deposition Modeling®, is currently the most widespread 3D Printing Technology. There has been a significant demand for developing flame-retardant filaments. Thereby enabling them, for example, in electronics and automotive applications. In this study, commercial PLA filament was modified by the addition of 1, 3 and 5% (%wt.) of expandable graphite. The composites were reprocessed, via extrusion, into filaments for Fused Filament Fabrication. Thermal properties of the filament composites were evaluated by thermogravimetric analysis and differential scanning calorimetry. Mechanical properties of thermo-pressed specimens indicated that no strong adhesion was promoted between the filler and matrix. This is a challenge with expandable graphite reported by many authors. All composites with expandable graphite achieved the V-2 rating of UL-94 flammability test. In spite of this, the results indicated that flammability of the PLA was reduced. All composite filaments were printable and prototypes were successfully 3D printed.","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67120541","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
ABS/Recycled PCTG blend compatibilized with SBS: effect on mechanical properties and morphology ABS/再生PCTG共混物与SBS增容:对力学性能和形貌的影响
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2021-01-01 DOI: 10.1590/0104-1428.20210074
Juliana Augusto Molari, D. D. Brunelli
{"title":"ABS/Recycled PCTG blend compatibilized with SBS: effect on mechanical properties and morphology","authors":"Juliana Augusto Molari, D. D. Brunelli","doi":"10.1590/0104-1428.20210074","DOIUrl":"https://doi.org/10.1590/0104-1428.20210074","url":null,"abstract":"","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67121098","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
首页 上一页
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