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Release of oregano essential oil from PHBV films in simulated food conditionsa PHBV薄膜中牛至精油在模拟食物条件下的释放
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20220060
R. C. D. Costa, Ana Paula Ineichen, C. S. Teixeira, I. C. Bellettini, L. N. Carli
{"title":"Release of oregano essential oil from PHBV films in simulated food conditionsa","authors":"R. C. D. Costa, Ana Paula Ineichen, C. S. Teixeira, I. C. Bellettini, L. N. Carli","doi":"10.1590/0104-1428.20220060","DOIUrl":"https://doi.org/10.1590/0104-1428.20220060","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":"67122298","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
Incorporation of Aloe vera extract in bacterial nanocellulose membranes 芦荟提取物在细菌纳米纤维素膜中的掺入
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.210062
L. Piaia, C. Q. P. Pittella, Samara Silva de Souza, F. Berti, L. Porto
{"title":"Incorporation of Aloe vera extract in bacterial nanocellulose membranes","authors":"L. Piaia, C. Q. P. Pittella, Samara Silva de Souza, F. Berti, L. Porto","doi":"10.1590/0104-1428.210062","DOIUrl":"https://doi.org/10.1590/0104-1428.210062","url":null,"abstract":"Florianópolis, SC, Brasil *piaialyapi@gmail.com Obstract Nanocellulose (BNC) is a natural polymer produced by bacteria. Its structure has only glucose monomer, it has various properties such as high water holding capacity, unique nanostructure, high crystallinity and high mechanical strength. Pure BNC or in combination with different components can be used for a wide range of applications. Aloe vera is a medicinal plant with polysaccharides in its composition that has a potential for tissue regeneration and repair. The aim of this study was to evaluate the effect of incorporating Aloe vera ( A. vera ) into BNC membranes produced with three fractions of A. vera extract (BNC-Aloe) on the behavior of epithelial cells. Human fibroblasts and keratinocytes were shown to have increased metabolic activity and proliferation when cultured on BNC-Aloe membranes compared to control. Quantification of collagen biosynthesis was significantly higher in BNC-Aloe membranes. In conclusion, BNC-Aloe membranes are suggested as a material for the","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":"67125439","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
Classification of natural rubber foam grades by optimising the azodicarbonamide content 通过优化偶氮二甲酰胺含量对天然橡胶泡沫等级进行分类
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20210111
Fateehah Baru, S. Saiwari, N. Hayeemasae
{"title":"Classification of natural rubber foam grades by optimising the azodicarbonamide content","authors":"Fateehah Baru, S. Saiwari, N. Hayeemasae","doi":"10.1590/0104-1428.20210111","DOIUrl":"https://doi.org/10.1590/0104-1428.20210111","url":null,"abstract":"This study aimed to focus on classifying rubber foam grades according to ASTM D1056. The natural rubber foams were prepared by varying the Azodicarbonamide (ADC) content from 2 - 10 phr. The results were evaluated on their physical and mechanical properties. The relative foam density of the foams decreased, and the expansion ratio increased with the addition of ADC. This was due to the increase in the gas phase raised by ADC. In addition, adding ADC also decreased hardness and compression-deflection of the foams, whereby the values obtained were higher after oven aging due to the radical recombination caused by chain breaking. According to ASTM D1056, the compression-deflection values of the foams were 2A2 and 2A3 grades, where the ADC content at 6 – 10 phr met the basic properties required by the same standard. Furthermore, the ADC content at 6 phr is strongly suggested when considering the foam morphology.","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":"67121776","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
Surface and micromechanical analysis of polyurethane plates with hydroxyapatite for bone structure 羟基磷灰石聚氨酯骨结构板的表面和微观力学分析
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20220058
Wenderson da Silva do Amaral, Milton Thélio de Albuquerque Mendes, J. Câmara, J. Pierote, F. Reis, J. Matos, AnaCristina Vasconcelos Fialho, W. Moura
{"title":"Surface and micromechanical analysis of polyurethane plates with hydroxyapatite for bone structure","authors":"Wenderson da Silva do Amaral, Milton Thélio de Albuquerque Mendes, J. Câmara, J. Pierote, F. Reis, J. Matos, AnaCristina Vasconcelos Fialho, W. Moura","doi":"10.1590/0104-1428.20220058","DOIUrl":"https://doi.org/10.1590/0104-1428.20220058","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":"67122236","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
Development of an SO2 indicator label applied to shrimp 虾用二氧化硫指示剂标签的研制
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20220033
Gleyca de Jesus Costa Fernandes, Karoline Ferreira Silva, C. Marques, L. Z. Benedito, Beatriz Ribeiro Cabral, P. Campelo, S. V. Borges, J. Marconcini, Z. Magriotis, P. Claro, M. V. Dias
{"title":"Development of an SO2 indicator label applied to shrimp","authors":"Gleyca de Jesus Costa Fernandes, Karoline Ferreira Silva, C. Marques, L. Z. Benedito, Beatriz Ribeiro Cabral, P. Campelo, S. V. Borges, J. Marconcini, Z. Magriotis, P. Claro, M. V. Dias","doi":"10.1590/0104-1428.20220033","DOIUrl":"https://doi.org/10.1590/0104-1428.20220033","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":"67121552","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
Selection of materials with entropy-topsis by considering technological properties of impregnated wood 考虑浸渍木材工艺性能的熵顶性材料选择
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20220067
Nadir Ersen, Hüseyin Peker, I. Akyüz
{"title":"Selection of materials with entropy-topsis by considering technological properties of impregnated wood","authors":"Nadir Ersen, Hüseyin Peker, I. Akyüz","doi":"10.1590/0104-1428.20220067","DOIUrl":"https://doi.org/10.1590/0104-1428.20220067","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":"67121957","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
A review on research, application, processing, and recycling of PPS based materials PPS基材料的研究、应用、加工及回收利用综述
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20210108
L. Montagna, M. Kondo, E. S. Callisaya, Celson Mello, Bárbara Righetti de Souza, A. P. Lemes, E. C. Botelho, M. L. Costa, M. Alves, M. V. Ribeiro, M. C. Rezende
{"title":"A review on research, application, processing, and recycling of PPS based materials","authors":"L. Montagna, M. Kondo, E. S. Callisaya, Celson Mello, Bárbara Righetti de Souza, A. P. Lemes, E. C. Botelho, M. L. Costa, M. Alves, M. V. Ribeiro, M. C. Rezende","doi":"10.1590/0104-1428.20210108","DOIUrl":"https://doi.org/10.1590/0104-1428.20210108","url":null,"abstract":"Among the engineering thermoplastics, poly(phenylene sulfide) (PPS) stands out for its excellent properties and mainly for processing at lower temperatures. The requirements requested by industries can be made by improving mechanical strength, weight reduction, and durable components by reinforcing the PPS matrix with fiberglass (FG) and carbon fiber (CF). This review intends to present the most current research related to the physical, mechanical, and thermal properties of PPS and the PPS/FG and PPS/CF composites most currently used by the aerospace, automotive, and energy industries. In addition to presenting the feasibility of mechanical and thermal recycling processes for PPS-based waste to reinsert a high market value thermoplastic into the industrial production cycle, thus contributing to the minimization of waste destined for landfills and incinerated or even improperly disposed of in the environment.","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":"67121128","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
A hybrid green composite for automotive industry 用于汽车工业的混合绿色复合材料
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20220027
Gabriella Neto Chagas, M. M. Barros, A. Leão, N. O. Tapanes, R. C. Ribeiro, D. C. Bastos
{"title":"A hybrid green composite for automotive industry","authors":"Gabriella Neto Chagas, M. M. Barros, A. Leão, N. O. Tapanes, R. C. Ribeiro, D. C. Bastos","doi":"10.1590/0104-1428.20220027","DOIUrl":"https://doi.org/10.1590/0104-1428.20220027","url":null,"abstract":"Hybrid composites were prepared using recycled polypropylene (rPP), dimension stone waste (Bege Bahia, BB) and coconut fiber (CF). Post-consumer the formulations of rPP/BB/CF and virgin PP, were processed in a Haake mixer. The films were characterized according to chemical, physical and mechanical properties. Multiple linear regression tests were used to develop mathematical models, which allow simulating the behavior of the composition of composite on mechanical properties. Density variations were associated with differences in particle packing and particle wall roughness. The impact resistance of rPP/BB/CF was slightly higher in the 70/10/20 wt% composite. SEM micrographs of the ternary (70/20/10 wt%) showed stronger traces of decohesion, allowing higher water absorption and reducing impact resistance. The response surface methodology suggest that the increase in the variable “coconut fiber content” is responsible for improving the mechanical properties of the composite. The ternary composite (70/10/20 wt%) was best for replacement of virgin PP.","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":"67121488","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
Effect of non-thermal argon plasma on the shear strength of adhesive systems 非热氩等离子体对胶粘剂抗剪强度的影响
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20220019
Isabella de Almeida Guimarães Passos, J. N. Marques, J. Câmara, R. Simão, M. Prado, G. Pereira
{"title":"Effect of non-thermal argon plasma on the shear strength of adhesive systems","authors":"Isabella de Almeida Guimarães Passos, J. N. Marques, J. Câmara, R. Simão, M. Prado, G. Pereira","doi":"10.1590/0104-1428.20220019","DOIUrl":"https://doi.org/10.1590/0104-1428.20220019","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":"67121762","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
Influence of carbon black trimodal mixture on LDPE films properties: Part2 – SME 炭黑三模态混合物对LDPE薄膜性能的影响:第二部分- SME
IF 1.3 4区 化学
Polimeros-ciencia E Tecnologia Pub Date : 2022-01-01 DOI: 10.1590/0104-1428.20220053
J. Barbosa, C. G. Beatrice, L. Pessan
{"title":"Influence of carbon black trimodal mixture on LDPE films properties: Part2 – SME","authors":"J. Barbosa, C. G. Beatrice, L. Pessan","doi":"10.1590/0104-1428.20220053","DOIUrl":"https://doi.org/10.1590/0104-1428.20220053","url":null,"abstract":"In this work, the influence of Specific Mechanical Energy (SME) to disperse a trimodal distribution of carbon black (CB) by extrusion was studied to evaluating the effect on LDPE films properties (colorimetric and rheological). Three types of CB were previously evaluated (PART1) and determined that the best formulation was the combination between small (S) and medium (M) particles (F18 and F13), obtaining greater tinting strength with lower viscosity. In this work (PART2), these formulations were processed with different SME levels by varying the extrusion parameters, like screw rotation speed (N) and feed rate (Q), modulate the SME. The result of each process was evaluated by Tinting Strength, MFI, Total Transmittance and it was determined that the process with 600 rpm and 10 kg/h feed rate, generating a SME of 0.29 kWh/kg for F18-P03, developed the best results, mainly in the Tinting Strength, from 126.7% to 133.2% related to F18 (PART1)","PeriodicalId":20282,"journal":{"name":"Polimeros-ciencia E Tecnologia","volume":"144 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67122217","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
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