Influence of halloysite nanotubes (HNTs) on the mechanical performance, compression set, crosslink density, and swelling resistance of ethylene propylene diene monomer/chlorinated isobutylene-isoprene rubber (EPDM/CIIR) blend composites

IF 1.4 4区化学 Q4 POLYMER SCIENCE

Journal of Rubber Research Pub Date : 2025-10-08 DOI:10.1007/s42464-025-00325-2

G. Prabaharan, S. Baskar, S. Vishvanathperumal

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Abstract

In this study, halloysite nanotubes (HNTs) were used to reinforce ethylene propylene diene monomer (EPDM) and chlorinated isobutylene-isoprene rubber (CIIR) blend composites. The effects of HNT loading on cure characteristics, mechanical properties, rebound resilience, swelling resistance, compression set, crosslinking density, and abrasion resistance were systematically evaluated. With increasing HNT content, minimum torque, maximum torque, delta torque, and cure rate index increased, while scorch time and optimum cure time decreased. Tensile strength and stress at 100% elongation increased up to 6 phr of HNTs, showing improvements of 76.7% and 49%, respectively, compared to the unfilled blend. Tear strength increased continuously with increasing HNT loading, reaching a 54.4% improvement at the highest concentration. However, elongation at break and rebound resilience declined by 10% and 31%, respectively, as HNT content increased. Crosslinking density increased up to 6 phr and then declined, showing a similar trend to the swelling resistance. Compression set values rose with increasing HNT loading. These results indicate that 6 phr of HNT provides optimal performance in balancing reinforcement and elasticity.

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高岭土纳米管（HNTs）对乙丙二烯单体/氯化异丁烯-异戊二烯橡胶（EPDM/CIIR）共混复合材料力学性能、压缩集、交联密度和抗膨胀性能的影响

本研究采用高岭土纳米管（HNTs）对三元乙丙橡胶（EPDM）和氯化异丁烯-异戊二烯橡胶（CIIR）共混复合材料进行增强。系统评价了HNT载荷对固化特性、力学性能、回弹回弹性、抗膨胀性、压缩集密度、交联密度和耐磨性的影响。随着HNT含量的增加，最小转矩、最大转矩、δ转矩和固化率指数增大，而焦化时间和最佳固化时间减小。与未填充共混物相比，HNTs的抗拉强度和100%伸长率下的应力分别提高了76.7%和49%，达到6phr。随着HNT添加量的增加，撕裂强度不断提高，最高浓度时可提高54.4%。然而，随着HNT含量的增加，断裂伸长率和回弹弹性分别下降了10%和31%。交联密度在6 phr时先升高后下降，其趋势与抗膨胀性相似。压缩集值随着HNT负荷的增加而增加。这些结果表明，6phr的HNT具有最佳的补强和弹性平衡性能。

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

Journal of Rubber Research 化学-高分子科学

自引率

15.40%

发文量

审稿时长

3 months

期刊介绍： The Journal of Rubber Research is devoted to both natural and synthetic rubbers, as well as to related disciplines. The scope of the journal encompasses all aspects of rubber from the core disciplines of biology, physics and chemistry, as well as economics. As a specialised field, rubber science includes within its niche a vast potential of innovative and value-added research areas yet to be explored. This peer reviewed publication focuses on the results of active experimental research and authoritative reviews on all aspects of rubber science. The Journal of Rubber Research welcomes research on: the upstream, including crop management, crop improvement and protection, and biotechnology; the midstream, including processing and effluent management; the downstream, including rubber engineering and product design, advanced rubber technology, latex science and technology, and chemistry and materials exploratory; economics, including the economics of rubber production, consumption, and market analysis. The Journal of Rubber Research serves to build a collective knowledge base while communicating information and validating the quality of research within the discipline, and bringing together work from experts in rubber science and related disciplines. Scientists in both academia and industry involved in researching and working with all aspects of rubber will find this journal to be both source of information and a gateway for their own publications.