摘要
橡胶在热、氧、臭氧、光照等环境因素作用下易发生老化,导致性能退化和使用寿命缩短。传统的橡胶防老剂在橡胶制品中存在易迁移、易挥发、使用周期短、环境污染等问题。近年来,新型耐迁移橡胶防老剂成为研究热点,旨在通过结构设计和载体调控实现防老剂的持久释放和高效稳定。本文首先概述了橡胶的主要老化机理;随后系统介绍了新型耐迁移防老剂的设计策略,借助分子动力学模拟探究了防老剂分子在橡胶基质中的防老作用以及迁移现象,为精准设计低迁移性分子结构和优化载体-防老剂相容性提供了重要的理论依据和预测工具;最后对新型耐迁移防老剂未来的发展方向进行展望,为绿色高性能橡胶材料的设计提供参考。
Rubber is susceptible to aging under the action of heat,oxygen,ozone,light and other environmental factors,resulting in performance degradation and shortened service life.Traditional rubber antioxidants in rubber products have the drawbacks of migration,volatilization,short utilization cycle,environmental pollution.In recent years,new migration-resistant rubber antioxidants have become a research hot-spot,aiming at the long-lasting release and efficient stabilization of antioxidants through structural design and carrier modulation.In this work,we firstly outline the main aging mechanism of rubber,then systematically introduce the design strategy of new anti-migration antioxidants,and explore the aging and migration phenomena of antioxidant molecules in rubber matrix with the help of molecular dynamics simulation,which provides an important theoretical basis and prediction tool for the precise design of low-migration molecular structure and optimization of the compatibility between carrier and antioxidant.Finally,we look forward to providing a reference for the design of green high-performance rubber materials in the development of new migration-resistant antioxidants in the future.
作者
赵长钰
赵道文
鞠长滨
康海澜
方庆红
李龙
ZHAO Changyu;ZHAO Daowen;JU Changbin;KANG Hailan;FANG Qinghong;LI Long(College of Materials Science&Engineering,Shenyang University of Chemical Technology,Shenyang 110142,China;Liaoning Provincial Key Laboratory of Rubber&Elastomer,Shenyang 110142,China;Shenyang Aircraft Corporation,Shenyang 110850,China)
出处
《弹性体》
2025年第6期85-95,共11页
China Elastomerics
基金
辽宁省教育厅基本科研项目(JYTMS20231498)。
关键词
橡胶防老剂
结构设计
防老机理
耐迁移
分子动力学模拟
rubber antioxidant
structural design
antioxidant mechanism
migration resistance
molecular dynamicssimulation
