合成材料老化与应用2025，Vol.54Issue(1)：13-15,3.
硫化天然橡胶荧光紫外老化性能研究
Study on the Properties of Vulcanized Natural Rubber Before and After Fluorescent UV Aging
郄晶晶 1陈少丽 1蔡慧珊 1梁楸怡1
作者信息
- 1. 广州合成材料研究院有限公司,广东广州 510665
- 折叠
摘要
Abstract
The peroxide vulcanization system natural rubber was aged with fluorescence ultraviolet radiation.The changes of natural rubber in appearances,mechanical properties,infrared structure,glass transition temperature,and crosslinking density before and after aging 400 h,800 h,1200 h,2000 h,and 3000 h were studied.The results show that after aging for 2000 hours,the rubber completely fails,it becomes hard,cracks appear on the surface,loses elasticity,and mechanical properties significantly decrease.The glass transition temperature becomes higher.Based on the infrared spectrum and changes in crosslinking density,we can concluded that natural rubber chains undergo chain breaking reaction first,and then new crosslinking reactions dominate.关键词
天然橡胶/荧光紫外老化/力学性能/老化机理Key words
natural rubber/fluorescent UV aging/mechanical properties/aging mechanism分类
化学化工引用本文复制引用
郄晶晶,陈少丽,蔡慧珊,梁楸怡..硫化天然橡胶荧光紫外老化性能研究[J].合成材料老化与应用,2025,54(1):13-15,3.
