文档介绍：
有机蒙脱土调控 ABS/PA6 共混体系的共连
续结构
周翔,沈金科,巫晓华,钱杨,王秀华**
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(浙江理工大学纺织纤维材料与加工技术国家地方联合工程实验室,杭州 310018)
摘要:采用熔融共混的方法制备了不同添加比例的有机蒙脱土(OMMT)填充丙烯晴-丁二烯-
苯乙烯(ABS)/尼龙 6(PA6)的共混物。通过 SEM、TEM、XRD 等手段表征了 OMMT在 ABS/PA6
共混体系中的分散现象及共混体系相形态的演变规律。结果表明 OMMT 定向分散在
ABS/PA6 共混物的 PA6 相中,而且拓宽了形成共连续结构的聚合物比例范围;随着 OMMT
含量的增加,形成共连续结构所需 PA6 的含量降低,相形态尺寸减小;OMMT 的临界含量
(ΦOMMT)和形成共连续 PA6 的质量分数(ΦPA6)成反比,其特征参数 n 约为 8,据此可根据
共混体系中 PA6 的含量,推算能形成相反转的 OMMT 最低添加量,为相关共混物的制备提
供有益的借鉴。
关键词:共连续结构;蒙脱土;定向分散;尼龙 6
中图分类号:TQ322
Co-continuous morphology inversion of ABS/PA6 polymer
blends by OMMT
ZHOU Xiang, SHEN Jinke, WU Xiaohua, QIAN Yang, WANG Xiuhua
(Zhejiang Sci-Tech University National&Local United Engineering Laboratory of Textile Fiber
Materials and Processing Technology, HangZhou 310018)
Abstract: In this work, a melting blending method was used to prepare acrylonitrile-butadiene-
styrene (ABS)/polyamide 6 (PA6)blends with OMMT filler. The effect of OMMT dispersion on
the morphology evolution of ABS/PA6 blends was studied by SEM, XRD and TEM. It was found
that work were selectively dispersion in the PA6 phase. The addition of OMMT
leads to a phase transition from a sea-island structure to a co-continuous one. With an increase in
OMMT loading (ΦOMMT), the PA6 content (ΦPA6) required for the formation of the
co-continuous structure decreases, and a smaller domain size is obser