橡胶的高温压缩永久变形  

Compression Set of Vulcanized Rubber at Elevated Temperatures

作　　者：谢可勇 安琪 孙岩 王登霞 李家恺 Keyong Xie;Qi An;Yan Sun;DengxiaWang;Jiakai Li(Shandong Institute of Non-metallic Materials,Jinan 250031,China)

机构地区：[1]山东非金属材料研究所,山东济南250031

出　　处：《高分子材料科学与工程》2025年第1期99-105,共7页Polymer Materials Science & Engineering

基　　金：国防技术基础科研项目(JSHS2020209B001-5)。

摘　　要：为了分析造成橡胶高温压缩永久变形的主要因素,开展了不同方式的橡胶高温压缩永久变形试验,明确了不同试验方式测得的压缩永久变形的涵义,对导致橡胶材料高温压缩永久变形的化学因素和物理因素进行了量化分析。结果显示,极性高的橡胶材料分子间作用力强,易产生物理压缩永久变形;键能高的橡胶材料不易产生化学压缩永久变形。随试验温度升高,橡胶材料物理压缩永久变形和化学压缩永久变形均增加,但高温条件下,化学老化未必是导致橡胶材料发生压缩永久变形的主要原因。对橡胶材料压缩永久变形原因进行量化分析,可以在橡胶配方和硫化工艺设计、橡胶高温压缩状态下老化动力学研究等方面提供帮助。Inder to determine the main factors that cause the compression set of rubber materials at elevated temperatures,different test methods of compression set were conducted.The significance of compression set measured by different test methods was analyzed,and a quantitative analysis of the causes of compression set was carried out based on the differences in the results of different test methods.The research results show that rubber materials with strong intermolecular forces due to high polarity are prone to physical compression set,while rubber materials with high bond energy are less prone to chemical compression set.With the increase of test temperature,the physical compression set and chemical compression set of rubber materials both increase,but chemical aging may not necessarily be the main cause of the compression set of rubber materials at elevated temperatures.Quantitative analysis of the reasons for the compression set of rubber materials can provide assistance in the design of rubber formulations and vulcanization processes,as well as in the study of aging kinetics of rubber materials at elevated temperatures.

关 键 词：橡胶 物理压缩永久变形 化学压缩永久变形 量化分析 

分 类 号：TQ330.1[化学工程—橡胶工业]