Cure, Mechanical, Swelling, Antimicrobial and Biodegradability Studies of Biocomposites of Acrylonitrile Butadiene Rubber and Chitosan

IF 1 4区 化学 Q4 POLYMER SCIENCE Polymer Science, Series A Pub Date : 2024-07-10 DOI:10.1134/s0965545x24600327
P. Nusrath, P. Sajna, K. T. Ramlath, C. Rajesh
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Abstract

Bio composites of acrylonitrile butadiene rubber (NBR) reinforced with chitosan were prepared using dicumyl peroxide (DCP) as a curing agent. Composites with two types of chitosan with different degrees of deacetylation (DD) were studied i.e., Chitosan with 85% DD and 75% DD. The cure characteristics of composites were studied. The mechanical properties of NBR were found to be improved by the incorporation of chitosan. The composite containing 20 phr chitosan has the best balance of mechanical properties. The swelling behavior of the composites in non-polar solvents such as petrol, diesel, kerosene, toluene, and hexane were analyzed for the swelling coefficient values which supports the results of mechanical properties. Antimicrobial properties of the composites were studied by inoculating the composites with Aspergillus niger (A. niger) fungus on a potato dextrose agar media and incubated for 60 days at room temperature. It is found that presence of chitosan resist the microbial action on the composite samples compared to the gum sample. It is believed that the outcome obtained from the present study is to develop environment-friendly composites for various applications such as oil seals, hoses, automobile bushes, etc.

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丙烯腈丁二烯橡胶和壳聚糖生物复合材料的固化、机械、膨胀、抗菌和生物降解性研究
摘要 以过氧化二辛酯(DCP)为固化剂,制备了壳聚糖增强丙烯腈丁二烯橡胶(NBR)的生物复合材料。研究了两种脱乙酰度(DD)不同的壳聚糖复合材料,即脱乙酰度为 85% 的壳聚糖和脱乙酰度为 75% 的壳聚糖。研究了复合材料的固化特性。发现加入壳聚糖后,丁腈橡胶的机械性能得到了改善。含有 20 phr 壳聚糖的复合材料具有最佳的平衡机械性能。对复合材料在汽油、柴油、煤油、甲苯和己烷等非极性溶剂中的溶胀行为进行了分析,得出的溶胀系数值支持了机械性能的结果。通过在马铃薯葡萄糖琼脂培养基上接种黑曲霉(A. niger)真菌并在室温下培养 60 天,研究了复合材料的抗菌特性。结果发现,与树胶样品相比,壳聚糖的存在能抑制微生物对复合材料样品的作用。相信本研究的成果将有助于开发环保型复合材料,用于油封、软管、汽车衬套等各种应用。
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来源期刊
Polymer Science, Series A
Polymer Science, Series A 化学-高分子科学
CiteScore
1.70
自引率
0.00%
发文量
55
审稿时长
3 months
期刊介绍: Polymer Science, Series A is a journal published in collaboration with the Russian Academy of Sciences. Series A includes experimental and theoretical papers and reviews devoted to physicochemical studies of the structure and properties of polymers (6 issues a year). All journal series present original papers and reviews covering all fundamental aspects of macromolecular science. Contributions should be of marked novelty and interest for a broad readership. Articles may be written in English or Russian regardless of country and nationality of authors. All manuscripts are peer reviewed. Online submission via Internet to the Series A, B, and C is available at http://polymsci.ru.
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