摘要
以马来酸酐接枝三元乙丙橡胶(EPDM-g-MAH)为反应性增容剂,通过熔融共混制得聚间苯二甲胺己二酸/聚酰胺6/三元乙丙橡胶(MXD6/PA6/EPDM)共混物。采用Molau实验研究了共混物的相容性,利用哈克转矩流变仪、差示扫描量热仪、偏光显微镜和热重分析仪等研究了MXD6/PA6/EPDM共混物的流变性能、熔融行为、结晶行为以及耐热性能。结果表明,由于EPDM-g-MAH的引入,共混物的平衡扭矩增大,PA6相与EPDM相界面黏附力明显提高;EPDM-g-MAH的引入导致共混物的球晶形貌规整性变差,成核密度下降,结晶速率减慢;随着EPDM含量的增加,共混物的玻璃化转变温度(T_g)和熔融温度(T_m)均呈下降趋势;EPDM-g-MAH的引入提高了共混物的热稳定性。
In this paper,EPDM was grafted with maleic anhydride and introduced into blends of poly(m-xylene adipamide) /polyamide 6(MXD6/PA6) as a reactive compatibilizer forming a ternary blend(MXD6/PA6/EPDM).The compatibility of blended components was analyzed by Molau test.The rheo logical property,melting and crystallization behavior,and heat resistance of MXD6/PA6/EPDM blends were studied by HAAKE torque rheometer,differential scanning calorimetry,polarized light microscopy,and thermal gravimetric analysis.It was found that the addition of EPDM-g-MAH increased the balance torque of the blend system and the interfacial adhesion between MXD6 and PA6 was improved.EPDM-g-MAH lowered the nucleation density and the crystallization rate.The glass transition temperature and melting point of the blends decreased with increasing EPDM content,however,the thermal stability of blends was improved.
出处
《中国塑料》
CAS
CSCD
北大核心
2015年第1期64-70,共7页
China Plastics
基金
黑龙江省教育厅科学技术研究项目(12511588)
黑龙江省研究生创新科研项目资金(YJSCX2011-204HLJ)
关键词
聚间苯二甲胺己二酸
三元乙丙橡胶
马来酸酐
聚酰胺6
共混物
相容性
热性能
poly(m-xylene adipamide)
ethylene propylene diene monomer
maleic anhydride
polyamide 6
blend
compatibility
thermal property
