共混硫化杜仲胶的研究  

Study on NR/Gutta-Percha and PB/Gutta-Percha Blends

作　　者：薛兆弘[1] 谢伶 严瑞芳[1] 

机构地区：[1]中国科学院化学研究所,北京100080

出　　处：《弹性体》1992年第1期12-17,共6页China Elastomerics

基　　金：国家自然科学基金

摘　　要：本文报导了杜仲胶以不同比例分别与天然橡胶及顾丁胶共混的非硫化及硫化体系的力学性能。结果表明:杜仲胶的引入可使两体系的动态力学内耗(tgδ)峰降低,且对顾丁胶体系效果更明垦。与天然橡胶共混,可找到一个临界共混比(1:1),杜仲胶用量在此临界值内,体系的力学性能几乎与纯天然橡胶优良力学性能没有差异,与顺丁胶共混,几乎可全面改进体系硫化前后的性能。The paper reports the mechemical properties of NR/Gutta--Percha and PB/Gutta--Percha blends with different mixing ratio. The result shows that their tgo decrease with increase of Gutta--Percha content and the effect of Gutta--Percha on tgo in PB/Gutta--Percha blend it more obrious;in NR/ Gutta--Percha blend system there it a critical mixing ratio (1 : 1), below the critical value of Gutta-- Percha the mechenical properties of cured blends are almost identical to those of pure cured NR; the mechenical propertus of PB/Gutta--Percha are better then those of Pure PB.

关 键 词：杜仲胶 天然橡胶 共混 力学性 硫化 

分 类 号：TQ332.2[化学工程—橡胶工业]