摘要
采用熔融共混的方法制备了不同配比的有机蒙脱土(OMMT)填充丙烯腈-丁二烯-苯乙烯(ABS)/尼龙6(PA6)共混物。通过抽提、SEM、TEM、XRD等表征手段研究了OMMT在PA6相中的定向分散现象及共混体系相结构的演变规律。结果表明,OMMT可以定向分散在ABS/PA6共混物的PA6相中,使形成共连续结构的聚合物比例范围变宽;随着OMMT含量的增加,形成共连续结构所需的PA6的含量降低,同时相尺寸减小;OMMT的临界含量(m(OMMT))和形成共连续PA6的质量分数(m(PA6))存在近似的反比关系,其特征参数n值约为8,据此可根据共混体系中PA6的含量,推算形成相反转所需的OMMT添加量,为相关共混物的制备提供有益的借鉴。
In this work, a melting blending method was used to prepare acrylonitrile-butadiene- styrene （ABS）/ polyamide 6 （PA6）blends with OMMT. The effect of OMMT dispersion on the morphology evolution of ABS/ PA6 blends was studied by SEM, XRD and TEM. It was found that the OMMT network were selectively dis- persion 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 （m（OMMT））, the PA6 content （m（PA6）） required for the formation of the co-continuous structure decreases, and a smaller domain size was observed. The results verified that there exists a quantitative relation between m （OMMT） and m （PA6）. The product of m （PA6） and m（OMMT）, n, remains approximately 8 for this given system, and decreases with an increase in the DBP ad- sorption number of OMMT. It can offer useful reference to molding OMMT loading required on PA6 content.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2014年第B12期32-36,共5页
Journal of Functional Materials
基金
浙江省重点科技创新团队资助项目(2009R50013)
关键词
共连续结构
蒙脱土
定向分散
尼龙6
co-continuous morphology
clay network
selectively dispersion
polyamide 6
