橡胶技术网

橡胶工业
China Rubber Industry
2000 Vol.47 No.7 P.387-391

橡胶技术网

不同结构SBR硫化胶的磨耗研究

贾红兵  吉庆敏  金志刚  文威  张士齐  王美珣 

摘 要:通过对3种不同结构SBR硫化胶磨耗前后的红外光谱图和磨耗表面扫描电镜照片进行分析,研究了SBR硫化胶的磨耗性能、形态及磨耗过程中微观结构的变化。结果表明,磨耗过程是机械力引发具有活化的链式氧化反应的力化学反应,磨耗过程中分子主链和单硫键断裂程度越大,生成醚键数量越多,SBR硫化胶的耐磨性越差,其磨耗表面的磨纹越粗。
关键词:SBR;磨耗;微观结构;红外光谱;扫描电镜
分类号:TQ33.1 文献标识码:A

文章编号:1000-890X(2000)07-0387-05

Study on abrasion of SBR vulcanizates with different structures

JIA Hong-bing ,JI Oing-min ,JIN Zhi-gang ,WEN Wei ,ZHANG Shi-qi1
(Nanjing University of Science and Teehnology, Nanjing 210094, China)
WANG Mei-xun
(Maanshan Steel and Iron Company,Maanshan 243000, China)

Abstract:The abrasion properties, morphology and microstructure of SBR vulcanizates with three different structures were studied by analysing their infra-red spectras before and after abrasion, and their SEM cross-section pictures. The results showed that the abrasion process was a mechano-chemical reaction including active chain-oxydized reaction initiated by the mechanical force; the more the main chains and monosulfide bonds in the molecule broke in the abrasion process, the more the quantity of ether bonds produced, the poorer the abrasion properties and the rougher the abrasion surface.
Keywords:SBR; abrasion; microstructure; infra-red spectra; SEM

基金项目:国家自然科学基金资助项目(27674013)
作者简介:贾红兵(1967-),女,江苏扬州人,南京理工大学讲师,博士,主要从事高分于材料方面的教学与科研工作。
作者单位:贾红兵(南京理工大学高分于系,江苏南京 210094) 
     吉庆敏(南京理工大学高分于系,江苏南京 210094) 
     金志刚(南京理工大学高分于系,江苏南京 210094) 
     文威(南京理工大学高分于系,江苏南京 210094) 
     张士齐(南京理工大学高分于系,江苏南京 210094) 
     王美珣(马鞍山钢铁公司钢研所,安徽 马鞍山 243000) 

参考文献:

[1]布罗茨基T и,橡胶磨耗[M],唐云峰译,北京:化学工业出版社,1980,6.
[2]沈德言,红外光谱法在高分子研究中应用[M].北京:科学出版社,1982.82.
[3]薛奇,高分子结构研究中的光谱方法[M],北京:高等教育出版社,1995.31.
[4]Razgon D R, Drozdovskii V F.Reaction of radical acceptors with polymer radicals formed by mechanical degradation of vulcanizates[J].Rubber Chemistry and Technology, 1971,44(3):668.

收稿日期:2000-01-05

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