摘要
以环糊精修饰的氧化铝纳米粒子(CD-Al_(2)O_(3)NPs)为主体分子,以含金刚烷的丙烯酸酯为客体分子,通过主、客体相互识别自组装生成包合物后与2-羟基乙基-甲基丙烯酸酯(HEMA)、丙烯酸丁酯(BA)和聚乙烯吡咯烷酮(PVP)进行自由基共聚得到了一种新型的PVP/p(HEMA-co-BA)半互穿网络材料,对其微观形貌和性能进行表征和检测。结果表明:通过主客体包合作用赋与了材料自修复性能;同时,由于引入了主客体包合和氢键两种可逆的非共价相互作用,材料具有优异的形状记忆功能。材料具备的形状记忆功能和自修复性能可在裂纹的两个断面距离较大时实现自修复,恢复材料的原有性能。此外,PVP/p(HEMA-co-BA)还具有较好的热稳定性,耐受温度达到200℃,能够在较高温度环境中使用。
In this paper,a novel semi-interpenetrating network material PVP/p(HEMA-co-BA)was synthesized by free radical polymerization of 2-hydroxyethyl methacrylate(HEMA),butylacrylate(BA),polyvinyl pyrrolidone(PVP),and hostguest interaction complex which was synthesized by recognition and free radical copolymerization using cyclodextrin modified aluminium oxide nanoparticles(CD-Al_(2)O_(3)NPS)as host molecules and acrylate containing adamantane as guest molecules.The microstructure and properties of PVP/p(HEMA-co-BA)were characterized and tested.The results show that the material has self-repairing property by the interaction of host and guest materials.And the introduction of two reversible non-covalent interactions host-guest interaction and hydrogen bond gives the material excellent shape memory function.With the shape memory and self-repair capability,the material can repair by itself and recover the original property when the distance between the two sections of the crack is large.In addition,PVP/p(HEMA-co-BA)has good thermal stability and can be used at 200℃in high temperature environment.
作者
林木松
李智
彭磊
郑晓光
马晓茜
余昭胜
付强
张晟
LIN Musong;LI Zhi;PENG Lei;ZHENG Xiaoguang;MA Xiaoqian;YU Zhaosheng;FU Qiang;ZHANG Sheng(Electric Power Research Institute of Guangdong Power Grid Corporation,Guangzhou 510080,China;South China University of Technology,Guangzhou 510680,China;State Key Laboratory of Polymer Materials Engineering,Sichuan University,Chengdu 610065,China)
出处
《绝缘材料》
CAS
北大核心
2023年第6期1-8,共8页
Insulating Materials
基金
南方电网有限责任公司科研项目(GDKJQQ20152049)。
关键词
电缆
护套材料
形状记忆
自愈合
主客体
cable
sheath materials
shape memory
self-healing
host and guest
