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用于提高稳定性的自修复丁基橡胶与天然橡胶复合材料的组合

Combination of Self-Healing Butyl Rubber and Natural Rubber Composites for Improving the Stability.

作者信息

Chumnum Kunakorn, Kalkornsurapranee Ekwipoo, Johns Jobish, Sengloyluan Karnda, Nakaramontri Yeampon

机构信息

Sustainable Polymer & Innovative Composite Materials Research Group, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand.

Department of Materials Science and Technology, Faculty of Science, Prince of Songkla University, Songkhla 10400, Thailand.

出版信息

Polymers (Basel). 2021 Jan 30;13(3):443. doi: 10.3390/polym13030443.

DOI:10.3390/polym13030443
PMID:33573166
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7866522/
Abstract

The self-healing composites were prepared from the combination of bromobutyl rubber (BIIR) and natural rubber (NR) blends filled with carbon nanotubes (CNT) and carbon black (CB). To reach the optimized self-healing propagation, the BIIR was modified with ionic liquid (IL) and butylimidazole (IM), and blended with NR using the ratios of 70:30 and 80:20 BIIR:NR. Physical and chemical modifications were confirmed from the mixing torque and attenuated total reflection-fourier transform infrared spectroscopy (ATR-FTIR). It was found that the BIIR/NR-CNT with IL and IM effectively improved the cure properties with enhanced tensile properties relative to pure BIIR/NR blends. For the healed composites, BIIR/NR-CNT-IM exhibited superior mechanical and electrical properties due to the existing ionic linkages in rubber matrix. For the abrasion resistances, puncture stress and electrical recyclability were examined to know the possibility of inner liner applications and Taber abrasion with dynamic mechanical properties were elucidated for tire tread applications. Based on the obtained and values, the composites are proposed for tire applications in the future with a simplified preparation procedure.

摘要

自愈合复合材料是由填充有碳纳米管(CNT)和炭黑(CB)的溴化丁基橡胶(BIIR)与天然橡胶(NR)共混物制备而成。为了实现优化的自愈合传播,用离子液体(IL)和丁基咪唑(IM)对BIIR进行改性,并以70:30和80:20的BIIR:NR比例与NR共混。通过混合扭矩和衰减全反射傅里叶变换红外光谱(ATR-FTIR)证实了物理和化学改性。结果发现,相对于纯BIIR/NR共混物,含有IL和IM的BIIR/NR-CNT有效地改善了硫化性能,并提高了拉伸性能。对于愈合后的复合材料,由于橡胶基体中存在离子键,BIIR/NR-CNT-IM表现出优异的机械和电气性能。对于耐磨性,测试了穿刺应力和电回收性以了解其作为内衬应用的可能性,并阐明了用于轮胎胎面应用的带有动态机械性能的泰伯磨耗。基于所获得的值,建议未来采用简化的制备工艺将这些复合材料用于轮胎应用。

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