废胎面胶粉的生物脱硫与化学脱硫效果对比  

Effect comparison of microbial and chemical desulfurizations of ground tire rubber

作　　者：李元虎[1] 赵素合[1] 姜广明[1] 王叶[1] 王雅琴[2] 张翠茹[2] 

机构地区：[1]北京化工大学北京市新型高分子材料制备与加工重点实验室,北京100029 [2]北京化工大学生命科学与技术学院,北京100029

出　　处：《合成橡胶工业》2011年第3期210-214,共5页China Synthetic Rubber Industry

基　　金：国家自然科学基金资助项目(50673009);国家"八六三"计划资助项目(2006AA06Z367)

摘　　要：分别用酵母菌和Delink脱硫剂对废胎面胶粉(GTR)进行生物脱硫和化学脱硫,研究了酵母菌的生长情况,考察了脱硫胶粉对其填充丁苯橡胶(SBR)硫化胶交联密度、物理机械性能和动态力学性能的影响,并对填充硫化胶的相态结构进行了表征。结果表明,加入GTR后,酵母菌的生物量略有下降,但经过4 d后仍能维持较高的生物量水平;生物脱硫效果优于化学脱硫效果;生物脱硫胶粉填充SBR硫化胶与化学脱硫胶粉填充SBR硫化胶相比,前者的物理机械性能优于后者,且在高弹态的储能模量略小,损耗因子更低;生物脱硫胶粉与化学脱硫胶粉均和SBR基体界面结合良好。The ground tire rubber（GTR） was desulfurated with saccharomyces and chemical desulfurization,and the saccharomyces＇ growth was studied.Effects of desulfurated GTR on crosslink density,mechanical properties,dynamic mechanical properties of styrene-butadiene rubber（SBR） were investigated,and the phase structure of SBR vulcanizates was characterized.The results showed that saccharomyces was still able to maintain a higher lever of biomass after 4 days,although biomass decreased the beginning of adding GTR.Compared to SBR vulcanizates filled with chemically desulfurated GTR,the SBR vulcanizates filled with biodesulfurated GTR had better mechanical properties,slightly smaller storage modulus in high elastic state,and a lower loss factor.The interfacial interaction between desulfurated GTR and SBR matrix was good.

关 键 词：废胎面胶粉 化学脱硫 酵母菌 生物脱硫 丁苯橡胶 物理机械性能 动态力学性能 相态结构 

分 类 号：TQ330.6[化学工程—橡胶工业]