申请人:Changchun Institute Of Applied Chemistry Chinese
Academy Of Sciences
公开号:EP3378977A1
公开(公告)日:2018-09-26
This invention provides a polyimide fiber prepared from a dianhydride compound and a diamine compound, wherein said diamine compound is selected from one or more of the compounds represented by the following formulae (I), (II), (III) and (IV):
polyimide fiber is prepared by using a polyimide polymer system having a specific hydroxyl heterocyclic diamine copolymerization structure, and the prepared polyimide fiber has relatively high strength and modulus and is resistant to high temperature. Furthermore, the polyimide fiber prepared by this invention is provided with an active group on its surface, thus being easily adhered to various resin matrices, and the composite material prepared has good mechanical properties.
本发明提供了一种由二酸酐化合物和二胺化合物制备的聚酰亚胺纤维,其中所述二胺化合物选自下式 (I)、(II)、(III) 和 (IV) 所代表的一种或多种化合物:
使用具有特定羟基杂环二胺共聚结构的聚酰亚胺聚合物体系制备聚酰亚胺纤维,制备的聚酰亚胺纤维具有相对较高的强度和模量,并且耐高温。此外,本发明制备的聚酰亚胺纤维表面带有活性基团,因此很容易粘附到各种树脂基材上,制备的复合材料具有良好的机械性能。