Effect of Reactive Organic Modifiers on Thermal/Mechanical Properties of Epoxy/Clay Nanocomposites

被引：0
|
作者：
Chen B. [1 ]
Pei X. [1 ]
Xu Y. [1 ]
Zhang Y. [2 ]
机构：
[1] School of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang
[2] School of Applied Chemistry, Shenyang University of Chemical Technology, Shenyang
来源：
Chen, Bin (bchen63@163.com) | 1600年 / Chinese Journal of Materials Research卷 / 34期
基金：
中国国家自然科学基金;
关键词：
Clay; Epoxy; Interface; Mechanical properties; Nanocomposites; Organic polymer materials;
D O I：
10.11901/1005.3093.2019.403
中图分类号：
学科分类号：
摘要：
Two reactive organic modifiers were firstly synthesized by reaction of triglycidyl p-aminophenol (TGPAP) with bromo-n-butane (BB) and 2-bromoethanol (BE) respectively. By using the two modifiers, two different types of organic clays (B-Clay and E-Clay) with the same reactive functional groups but different in compatibility with epoxy were prepared. Epoxy/clay nanocomposites were then synthesized with the above two organoclay via "clay-slurry compounding method". The effect of two reactive organic modifiers on the structure and thermal/mechanical properties of the nanocomposites was studied. It is shown that E-Clay gave a highly exfoliated structure in epoxy matrix because of its better compatible with epoxy pre-polymer, while B-Clay presented an exfoliated/intercalated mixed structure. Remarkable improvement in tensile strength and modulus were obtained for the nanocomposites due to the formation of strong interfacial bonding between epoxy matrix and clay layers, which derived from reactions of organic modifiers on the organoclay with curing agent during curing. For the nano-composite with incorporation of 3.0% clay, the tensile strength and modulus enhanced by 76.47% and 258% for E-Clay respectively, while that with B-Clay were 52.51% and 236.92%. Besides, the glass transition temperature (T g) of the two type of nanocomposites was marginally improved relative to neat epoxy resin. © All right reserved.
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页码：161 / 168
页数：7
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