不同种类低共熔溶剂对白炭黑填充丁苯橡胶物理机械性能的影响  

Effect of different types of deep eutectic solvent on physical and mechanical properties of styrene-butadiene rubber filled with silica

作　　者：魏利萍 沈梅[1] 辛振祥[1] WEI Li-ping;SHEN Mei;XIN Zhen-xiang(Key Laboratory of Rubber-Plastics of Ministry of Education,Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《合成橡胶工业》2022年第3期188-194,共7页China Synthetic Rubber Industry

基　　金：山东省重大科技创新工程项目(2019JZZY020223)。

摘　　要：以低共熔溶剂(DES)为白炭黑的改性剂,通过与双[3-(三乙氧基硅)丙基]四硫化物(TESPT)并用进行原位反应改善白炭黑在丁苯橡胶中的分散性,研究了不同种类DES对白炭黑/丁苯橡胶复合材料硫化特性、加工性能、物理机械性能和微观形貌的影响。结果表明,氯化胆碱/尿素与TESPT并用可以明显改善白炭黑在丁苯橡胶中的分散性,使Payne效应减弱,并提升白炭黑/丁苯橡胶硫化胶的力学性能和压缩疲劳性能;氯化胆碱/乙二酸与TESPT并用对提高白炭黑与丁苯橡胶界面结合力效果显著,所得白炭黑/丁苯橡胶复合材料的耐磨性能优异;而当DES用量较大时改性效果不佳。With deep eutectic solvent(DES)as the modifier of silica,the dispersity of silica in styrene butadiene rubber(SBR)was improved by in-situ reaction under the synergistic effect of DES and bis(3-triethoxysilyl-propyl)-tetrasulfide(TESPT).The effects of different types of DES on curing characte-ristics,processing properties,physico-mechanical properties,and micromorphology of SBR/silica composites were researched.The results showed that choline chloride/urea in combination with TESPT could significantly improve the dispersity of silica in SBR matrix and weaken the Payne effect,so the mechanical properties and compression fatigue property of SBR/silica vulcanizates increased.Meanwhile,choline chloride/oxalic acid in combination with TESPT showed outstanding performance in impro-ving the interface adhesion between silica and SBR resulting in excellent wear resistance of SBR/silica composites.However,when the amount of DES was overdosed,the modification effect became worse.

关 键 词：低共熔溶剂 白炭黑 协同作用 分散性 物理机械性能 耐磨性能 PAYNE效应 界面结合 

分 类 号：TQ333.1[化学工程—橡胶工业]