新型热塑性弹性体DVA的制备及性能  

Preparation and Properties of a New Thermoplastic Elastomer DVA

作　　者：韩吉彬 张世甲 张桂明 王增龙 邹芳 田洪池 HAN Jibin;ZHANG Shijia;ZHANG Guiming;WANG Zenglong;ZOU Fang;TIAN Hongchi(Shandong Dawn Polymer Materials Co.,Ltd,Longkou,Shandong 265700,China)

机构地区：[1]山东道恩高分子材料股份有限公司,山东龙口265700

出　　处：《橡胶科技》2019年第1期11-15,共5页Rubber Science and Technology

基　　金：国家重点基础研究发展计划资助项目(2011CB606003)

摘　　要：研究不同相容剂和橡塑比(溴化丁基橡胶/聚酰胺用量比)对聚酰胺柔性合金(DVA)性能的影响。结果表明:马来酸酐接枝聚丙烯(PP-g-MAH)是理想的相容剂,用其制备的DVA相态精细、物理性能优异,PP-g-MAH的最佳用量是10份;随着橡塑比的增大,DVA的物理性能下降,气密性变差,分散相橡胶粒径变大,未能发生相反转。The effects of different compatibilizers and rubber-to-plastic ratio(bromobutyl rubber/polyamide ratio) on the properties of dynamically vulcanized flexible polyamide alloys(DVA) were investigated. The results showed that maleic anhydride grafted polypropylene(PP-g-MAH) was an ideal compatibilizer. The DVA prepared by it had fine phase structure and excellent physical properties. The optimum dosage of PP-g-MAH was 10 phr. As the ratio of rubber to plastic increased,the physical properties of DVA decreased,the airtightness deteriorated,and the particle size of the dispersed rubber phase increased,which would eventually cause the failure of phase inversion.

关 键 词：聚酰胺柔性合金 溴化丁基橡胶 热塑性硫化胶 相容剂 橡塑比 气密性 

分 类 号：TQ334.9[化学工程—橡胶工业] TQ333.6