橡胶技术网

特种橡胶制品
SPECIAL PURPOSE RUBBER PRODUCTS
2010 Vol.31 No.6 P.6-9,30

橡胶技术网

交联剂用量对BR/EVA热塑性硫化胶性能的影响

于文娟  程相坤  王兆波 

摘 要:采用动态硫化法制备了BR/EVA热塑性硫化胶(TPV),考查了硫化体系中硫黄用量对混炼胶的硫化行为、静态硫化胶的溶出物含量及性能的影响,并对BR/EVA型TPV的力学性能及微观结构进行了研究.结果表明,随着硫黄用量的提高,混炼胶硫化历程中的平坦期较长,但t90趋于明显降低,静态硫化胶溶出物含量及力学性能均呈下降趋势;当硫黄用量为0.5份时,静态硫化胶及BR/EVA TPV表现出良好的综合性能.显微镜照片表明,BR硫化胶的粒状物平均尺寸为5~10μm左右,较均匀地分散在EVA树脂基体中;FE-SEM的测试表明,TPV的断面平滑,TPV具有良好的形变回复性.
关键词:BR;EVA;动态硫化;微观相态结构
分类号:TQ333.2;TQ333.92  文献标识码:A

文章编号:1005-4030(2010)06-0006-04

Influence of Curing Agent Dosage on Properties of BR / EVA Thermoplastic Vulcanizates

YU Wen-juan  CHENG Xiang-kun   WANG Zhao-bo 

作者简介:于文娟(1986-),女,山东青岛人,在读硕士研究生,研究方向为动态硫化热塑性硫化胶.
作者单位:于文娟(青岛科技大学,材料科学与工程学院,山东,青岛,266042) 
     程相坤(青岛科技大学,材料科学与工程学院,山东,青岛,266042) 
     王兆波(青岛科技大学,材料科学与工程学院,山东,青岛,266042) 

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收稿日期:2010年7月8日

出版日期:2010年12月15日