尼龙11晶型的共聚法调控及铁电效应  

Controlling Crystal Phase of Nylon 11 by Random Copolymerization and Its Ferroelectricity

作　　者：黄檑 樊斌 马俊 彭青海 蔡绪福[1] HUANG Lei;FAN Bin;MA Jun;PENG Qing-hai;CAI Xu-fu(Stake Key Laboratory of Polymer Materials Engineering of China,College of Polymer Science and Engineering,Sichuan University,Chengdu 610065,China)

机构地区：[1]高分子材料工程国家重点实验室,四川大学高分子科学与工程学院,四川成都610065

出　　处：《塑料工业》2020年第10期160-164,共5页China Plastics Industry

基　　金：国家自然科学基金资助项目(51873114)。

摘　　要：尼龙11有望应用于未来电子器件和能量存储体系的功能材料,要实现尼龙11在这些领域的应用,最重要的是控制尼龙11形成可应用的亚稳态晶相,如压电γ相或者铁电δ′相。在此基础上,通过将尼龙11与尼龙511无规共聚合成了一种简单热加工即可得到铁电δ′相薄膜的共聚尼龙PA(11-co-511)。随着尼龙511含量的增加,共聚尼龙逐渐从非铁电α晶型转变为铁电δ′晶型。本研究结果有望实现铁电尼龙薄膜大规模、快速制备,推进尼龙11在功能电子器件中的应用。Nylon 11 was a promising functional material for future electronic devices or energy storage systems.To utilize nylon 11 in those applications,it was important to control the formation of the applicable metastable crystal phases,such as,the piezoelectricγ-phase or ferroelectricδ′phase.Therefore,a novel nylon-based copolymer synthesized by random copolymerization of nylon 11 and nylon 511 which can form electric active crystal phase by simple hot press molding was described.It was found that the crystal phase of nylon copolymer PA(11-co-511)changed from stableαphase to ferroelectricδ′phase.This study was promising to achieve large-scale preparation of ferroelectric nylon thin film and promote nylon applied in functional electronic devices.

关 键 词：共聚尼龙 晶型转变 铁电薄膜 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]