A new recyclable crosslinked polymer combined polyurethane and epoxy resin

被引：30
作者：
Peng, Yong-Jin [1 ]
He, Xin [2 ]
Wu, Qiang [3 ]
Sun, Ping-Chuan [3 ]
Wang, Chang-Jun [1 ]
Liu, Xue-Zheng [1 ]
机构：
[1] Jinzhou Med Univ, Coll Comprehens Studies, Jinzhou 121001, Peoples R China
[2] Ruyuan Dongyangguang Fluorine Resin Co Ltd, Shaoguan 512700, Peoples R China
[3] Nankai Univ, Coll Chem, Tianjin 300071, Peoples R China
来源：
POLYMER | 2018年 / 149卷
基金：
中国国家自然科学基金; 美国国家科学基金会;
关键词：
Recyclable; Cross-linked; Diels-Alder; DIELS-ALDER REACTION; SOLID-STATE NMR; MECHANICAL-PROPERTIES; NETWORKS; STORAGE; UNIQUE; SHELL;
D O I：
10.1016/j.polymer.2018.06.082
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Inspired by the nature material, a crosslinked network structure of polyurethane/epoxy resin composite material was built through Diels-Alder (DA) reversible covalent bond reaction between the dienes and dienophile group on the side chain of epoxy resin and polyurethane respectively. The synthesized composite material combined the advantages of polyurethane and epoxy resin. The hard segments of polyurethane and epoxy resin were closely combined through the DA reaction and high density hydrogen bonding. The strength, hardness and toughness of the composite material were greatly enhanced. DA covalent bonds can be reversible with varying the temperature, which led to the heat reprocessing ability of the synthesized composite material. The well-established structure-property relationship shown in this paper could further provide guidance for fabrication of high performance recyclable material with precisely controllable microstructures and behaviors. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：154 / 163
页数：10
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