湖南大学学报（自然科学版）2025，Vol.52Issue(5)：185-194,10.DOI:10.16339/j.cnki.hdxbzkb.2025059
基于DSC的隔震支座用橡胶材料低温结晶试验
Experimental Study on Low Temperature Crystallization of Rubber Material for Isolation Bearing Based on DSC
摘要
Abstract
To analyze the deterioration mechanism of rubber isolation bearings at low temperatures,the low temperature crystallization properties of rubber materials used for isolation bearings in China under no-strain conditions were investigated.Differential scanning calorimetry(DSC)was used to investigate the glass transition temperature and isothermal crystallization melting of natural vulcanized rubber used for the production of isolation bearings by two typical enterprises in China.The results show that the crystallinity of the isolation bearing increases with the extension of the holding time at low temperatures without strain.Additionally,the crystallization properties of different vulcanized natural rubbers are different due to various factors such as origin,growing environment,and vulcanization process.Only when the ambient temperature is below-60℃the rubber isolation bearings produced by the materials used in this study lose their practical engineering value.In the actual service process,the isolation bearing is affected by the dual factors of low temperature and strain.The research results in this paper provide a reference and basis for revealing the deterioration mechanism of the mechanical properties of the isolation bearing at low temperatures and enhance our understanding of the mechanical behavior of the rubber isolation bearing at low temperatures.关键词
差示扫描量热法(DSC)/隔震支座/橡胶材料/结晶/熔融Key words
differential scanning calorimetry(DSC)/isolation bearings/rubber materials/crystallization/melting分类
建筑与水利引用本文复制引用
杜永峰,王光环,李元,张超..基于DSC的隔震支座用橡胶材料低温结晶试验[J].湖南大学学报（自然科学版）,2025,52(5):185-194,10.基金项目
国家自然科学基金资助项目(52178291),National Natural Science Foundation of China(52178291) （52178291）
