Preparation of oil resistant and high‐temperature resistant NBR composites by chitosan/silica/coupling agent modification

IF 3.6 4区工程技术 Q2 ENGINEERING, CHEMICAL

Polymer Engineering and Science Pub Date : 2024-12-30 DOI:10.1002/pen.27018

Yao Xiao, Yukun Zhou, Yinggang Huang, Biao Li, Yaqi Ge, Zhenchun Xu, Chuansheng Wang, Huiguang Bian

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引用次数: 3

Abstract

Abstract In this paper, chitosan (CS), which is naturally degradable and low‐cost, was incorporated into nitrile butadiene rubber (NBR), the effects of chitosan amount on the properties of the NBR composites were investigated, and the optimal amount of chitosan was determined. On this basis, CS, silica and Si69 were modified by ball milling and plasma to prepare NBR composites with higher oil resistance and high temperature resistance. The results showed that the overall properties of NBR composites filled with 2phr CS is better. FTIR and SEM demonstrated the surface polarity of ball milling combined with plasma co‐modified CS/silica was weakened, the dispersion of fillers in the NBR matrix was promoted, the oil resistance and high‐temperature resistance of the composites were enhanced, the cross‐linking density and tear strength were improved by 28.12%, and 51.76% compared with that of the NBR composites without CS. The investigation on the oil and high‐temperature resistance of NBR composites for blowout preventer cores has been carried out, which promotes the development of blowout preventer cores toward high safety, low cost, and sustainability. Highlights The effect of chitosan amount on nitrile butadiene rubber (NBR) composites was explored. Chitosan, silica, and coupling agent were modified by ball milling and plasma. The oil and high‐temperature resistance of NBR composites were improved. The tear strength was increased by 28% under double destructive environment.

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壳聚糖/二氧化硅/偶联剂改性制备耐油耐高温丁腈橡胶复合材料

摘要将低成本、可自然降解的壳聚糖（CS）掺入丁腈橡胶（NBR）中，研究了壳聚糖用量对丁腈橡胶（NBR）复合材料性能的影响，确定了壳聚糖的最佳用量。在此基础上，对CS、二氧化硅和Si69进行了球磨和等离子体改性，制备了耐油、耐高温的丁腈橡胶复合材料。结果表明，填充2phr CS的丁腈橡胶复合材料的综合性能较好。红外光谱（FTIR）和扫描电镜（SEM）结果表明，球磨复合后，等离子体共改性CS/二氧化硅的表面极性减弱，填料在NBR基体中的分散性增强，复合材料的耐油性和耐高温性增强，交联密度和撕裂强度分别比未加CS的NBR复合材料提高了28.12%和51.76%。开展了丁腈橡胶防喷器芯材耐油耐高温性能研究，促进了防喷器芯材向高安全、低成本、可持续发展的方向发展。探讨了壳聚糖用量对丁腈橡胶（NBR）复合材料性能的影响。采用球磨法和等离子体法对壳聚糖、二氧化硅和偶联剂进行改性。提高了丁腈橡胶复合材料的耐油性和耐高温性。在双重破坏环境下，撕裂强度提高了28%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Polymer Engineering and Science 工程技术-高分子科学

CiteScore

5.40

自引率

18.80%

发文量

329

审稿时长

3.7 months

期刊介绍： For more than 30 years, Polymer Engineering & Science has been one of the most highly regarded journals in the field, serving as a forum for authors of treatises on the cutting edge of polymer science and technology. The importance of PE&S is underscored by the frequent rate at which its articles are cited, especially by other publications - literally thousand of times a year. Engineers, researchers, technicians, and academicians worldwide are looking to PE&S for the valuable information they need. There are special issues compiled by distinguished guest editors. These contain proceedings of symposia on such diverse topics as polyblends, mechanics of plastics and polymer welding.