天然橡胶/杜仲胶共混硫化胶性能研究  

Study on Properties of Vulcanizates of Natural Rubber/Gutta Blends

作　　者：李良萍[1] 李翔[1] 薛兆弘[1] 严瑞芳[1] 

机构地区：[1]中国科学院化学研究所,北京100080

出　　处：《特种橡胶制品》2001年第3期1-3,共3页Special Purpose Rubber Products

摘　　要：对杜仲胶与天然橡胶共混硫化胶的静态力学性能及动态伸张疲劳性能进行了研究。结果表明 :在共混硫化胶体系中 ,杜仲胶质量分数在 40 %以下 ,能较好地保持其优良的力学性能 ;而杜仲胶对共混硫化胶动态伸张疲劳性能影响的大小在较高交联程度体系和较低交联程度体系中是不同的 ,通过差示扫描量热法(DSC)分析 。Static mechanical and dynamic tensile fatigue properties of vulcanizates of gutta/natural rubber blends were tested. It was found that the excellent mechanical properties of vulcanizates of the blends were kept in the content of gutta less than 40%, and the influences of gum on the tensile fatigue lifetime were different between the highly and lowly cross-linking systems. These phenomena could be explained for the crystallite effect of gutta by differential scanning calorimetric analysis (DSC).

关 键 词：杜仲胶 力学性能 伸张疲劳寿命 微晶 天然橡胶 共混硫化胶 性能 

分 类 号：TQ332[化学工程—橡胶工业]