湿法混炼对NBR/Kaolin复合材料溶胀行为的影响  

Effect of wet mixing on swelling behavior of NBR/Kaolin composites

作　　者：蒋兴旺 史兴辉 刘广永[1] 王辉 蔡颖辉 郝福兰 刘振学 JIANG Xingwang;SHI Xinghui;LIU Guangyong;WANG Hui;CAI Yinghui;HAO Fulan;LIU Zhenxue(Key Laboratory of Rubber and Plastic Materials and Engineering,Ministry of Education,Qingdao University of Science and Technology,Qingdao 266042,China;Yellow River Dezta Chambroad Institute Co.Ltd. Binzhou 256500,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 [2]黄河三角洲京博化工研究院有限公司,山东滨州256500

出　　处：《弹性体》2021年第5期7-11,共5页China Elastomerics

基　　金：山东省自然科学基金项目(ZR2019MEM028);山东省重点研发计划项目(2019 gSF109025)。

摘　　要：分别采用湿法混炼和干法混炼制备了2种丁腈橡胶(NBR)/高岭土(Kaolin)复合材料(LNBRK与SNBRK),并采用未加填料的NBR0作为空白对照样,选择了4种酯类溶剂来研究NBR0、LNBRK和SNBRK的溶胀行为,通过扫描电镜(SEM)观察了LNBRK和SNBEK中Kaolin分布差异,计算了NBR0、LNBRK和SNBRK在4种溶剂中的最大溶胀比和摩尔吸收率,并进一步计算出4种酯类溶剂在NBR0、LNBRK和SNBRK中的扩散系数。结果表明,相对于SNBRK,LNBRK在酯类溶剂中的最大溶胀程度增大,而溶胀速度变慢,试样在酯类溶剂中的溶胀行为与溶剂分子碳原子数有较强的关联。Two kinds of NBR/Kaolin composites(LNBRK and SNBRK)were prepared by wet mixing and dry mixing respectively,and NBR0 without filler was used as blank control.Four ester solvents were selected to study the swelling behavior of NBR0,LNBRK and SNBRK.The difference of Kaolin distribution between LNBRK and SNBEK was observed by SEM.The maximum swelling ratio and molar absorptivity of NBR0,LNBRK and SNBRK in the four solvents were calculated,and the diffusion coefficients of the four ester solvents in NBR0,LNBRK and SNBRK were further calculated.It is found that the maximum swelling degree of LNBRK in ester solvents is larger than that of SNBRK,but the swelling rate is slower than that of SNBRK.And the swelling behavior of samples in ester solvents is strongly related to the number of carbon atoms in solvent molecules.

关 键 词：湿法混炼 NBR/Kaolin复合材料 酯类溶剂 溶胀行为 

分 类 号：TQ333.7[化学工程—橡胶工业]