采用RPA研究环氧化天然橡胶与白炭黑的界面作用  

Investigation on the Interface Interaction between Epoxidized Natural Rubber and Silica Using RPA

作　　者：廖禄生[1] 王兵兵[1] 张福全[1] 汪月琼[1] 胡彦师[2] 许逵[1] 钟杰平[1,3] 彭政[1] 

机构地区：[1]中国热带农业科学院农产品加工研究所,农业部热带作物产品加工重点实验室,广东湛江524001 [2]中国热带农业科学院橡胶研究所,海南儋州571737 [3]广东海洋大学理学院,广东湛江524088

出　　处：《广东化工》2016年第10期66-68,共3页Guangdong Chemical Industry

基　　金：公益性行业(农业)科研专项经费资助(201403066);现代农业人才支撑计划(农业部);海南省自然科学基金(20155198);中国热带农业科学院院本级基本科研业务费专项资金(项目编号:1630022015031)

摘　　要：采用橡胶加工分析仪(RPA)研究环氧化天然橡胶(ENR)与白炭黑的界面作用,考察了反应条件和外加硅烷偶联剂对白炭黑-ENR界面反应的影响。结果表明,通过100%应变下弹性模量G’随时间的变化曲线,能够反映ENR与白炭黑的界面化学作用;温度对ENR与白炭黑之间的界面作用有很大影响,而剪切频率的影响较小;与氨基相比,巯基与环氧基的反应活性更高,KH-590能够有效地增强白炭黑-ENR的界面作用,并使ENR/白炭黑母胶的Payne效应减弱。The interface interaction between epoxidized natural rubber （ENR） and silica was investigated using a rubber process analyzer （RPA）, and thc effect of the reaction conditions and the added silane coupling agents on the ENR-silica interfacial reaction was studied. Results show that the curve of elasticity modulus G＇ versus time under 100 % strain can be associated with the interracial chemical interaction between ENR and silica. Reaction temperature has a great influence on the interface interaction, while the affect of shear frequency is small. Comparing with amino group, thiol group has a higher reactivity with epoxy, and so that KH-590 is more effective in improving the ENR-silica interface interaction, which subsequently weakens the Payne effect of ENR/silica masterbatch.

关 键 词：白炭黑 环氧化天然橡胶 RPA 界面作用 

分 类 号：TQ332.5[化学工程—橡胶工业]