ABS/PA6/OMMT共混体系的结晶及热力学性能  

Crystallization and Thermal Mechanical Property of ABS/PA6/OMMT Blends

作　　者：严伟[1] 杨春林[1] 张姣姣[1] 关星宇[1] YAN Wei;YANG Chunlin;ZHANG Jiaojiao;GUAN Xingyu(College of Chemistry and Materials, Guiyang University, Guiyang, Guizhou 550005, Chin)

机构地区：[1]贵阳学院化学与材料工程学院,贵州贵阳550005

出　　处：《塑料》2018年第3期40-43,共4页Plastics

基　　金：贵州省教育厅科学研究项目(黔教合KY字[2015]400);贵州省一流大学专业建设项目(2017158136)

摘　　要：采用丙烯腈-丁二烯-苯乙烯共聚物(ABS)、尼龙6(PA6)和有机蒙脱土(OMMT)通过熔融共混的方法制备了ABS/PA6合金。利用广角X射线衍射(WAXD)、透射电子显微镜(TEM)、差示扫描量热法(DSC)、动态热力学分析仪(DMA)研究了ABS/PA6/OMMT合金体系的结晶性能、热力学性能及OMMT在共混体系中的分布情况。结果表明,OMMT以剥离状态分布于PA6相中,PA6、ABS两相界面存在少量的OMMT片层。OMMT的加入降低了合金体系的结晶温度及结晶度,且对ABS/PA6共混体系具有一定的增容作用。添加3份OMMT到ABS/PA6体系中,其储能模量达到极值,ABS/PA6/OMMT共混体系的玻璃化转变温度变化较小。Acrylonitrile-Butadiene-Styrene （ABS）/Nylon 6 （PA6） alloys were prepared from acrylonitrile-butadiene- styrene, nylon 6, organoclay（OMMT） by means of melt Mending. The crystallization behavior, thermal mechanical property of OMMT addition in different matrix alloys system and dispersion of OMMT in ABS/PA6 blends were studied by wide-angle X ray diffraction （WAXD） , transmission electron microscope （TEM） , differential scanning calorimetry （DSC） and dynamic mechanical analyzer（DMA）. The results showed OMMT lamellae were dispersed into PA6 phase with the increase of the OMMT content. The two-phase interfaces had a small number of OMMT layers. The addition of OMMT reduced the crystallization temperature and crystaulinity of ABS/PA6 blends. Moreover, OMMT had a certain compatibilizing effect on the ABS/PA6 blends. When the addition of OMMT was 3 phr, the storage modulus of ABS/PA6 blends reached the extreme value. Incorporation of OMMT in ABS/PA6 system did not have any influence on the glass transition temperature of the materials.

关 键 词：PA6 ABS OMMT 结晶性能 热力学性能 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]