本征型自修复聚硅氧烷材料：从单重动态交联网络到多重动态交联网络

叶娟; 祖兆基; 林子谦; 向洪平; 章明秋

doi:10.11777/j.issn1000-3304.2022.22362

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本征型自修复聚硅氧烷材料：从单重动态交联网络到多重动态交联网络

综述 | 更新时间：2023-06-21

- 本征型自修复聚硅氧烷材料：从单重动态交联网络到多重动态交联网络
- Intrinsic Self-healing Polysiloxane Materials: From Single Dynamic Crosslinked Network to Multiple Dynamic Crosslinked Networks
- 高分子学报 2023年54卷第7期页码：1028-1054
- 作者机构：
  
  1.广东工业大学材料与能源学院广东省功能软凝聚态物质重点实验室广州 510006
  2.中山大学化学学院广东省高性能树脂基复合材料重点实验室聚合物复合材料及功能材料教育部重点实验室广州 510275
- 作者简介：
  
  [ "向洪平，男，1986年生. 2009年于淮北师范大学生命科学学院取得学士学位；2015年于中山大学获得博士学位；2018年起任广东工业大学材料与能源学院副教授. 围绕功能高分子及其复合材料的基础与应用科学问题，对高分子合成、共混复合及加工成型等开展了研究，近年来的研究领域涉及到自修复型智能高分子复合材料、固相可再生橡胶及其复合材料、3D打印光敏树脂及其复合材料等." ]
  [ "章明秋，男，1961年生. 1982、1991年于中山大学分别获得学士、博士学位；1992年起任中山大学化学院教授. 长期从事高分子及高分子复合材料的科研与教学，研究方向主要包括高分子材料，高分子共混物和高分子复合材料的结构与性能关系，表征技术，功能化应用等，内容涉及高分子材料和增强聚合物复合材料的力学性能，纳米粒子表面改性和纳米粒子/高分子复合材料，植物基复合材料，复合材料中的界面结构，高分子物理，导电复合材料，减摩耐磨复合材料，自修复型智能高分子复合材料等." ]
- 基金信息：
  
  国家自然科学基金(基金号52033011;52273104);广东省基础与应用基础研究基金(基金号2022A1515011972)
- DOI：10.11777/j.issn1000-3304.2022.22362
  中图分类号：
- 纸质出版日期：2023-07-20，
  
  网络出版日期：2023-01-16，
  
  收稿日期：2022-10-31，
  
  录用日期：2022-12-14
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叶娟,祖兆基,林子谦等.本征型自修复聚硅氧烷材料：从单重动态交联网络到多重动态交联网络[J].高分子学报,2023,54(07):1028-1054.

Ye Juan,Zu Zhao-ji,Lin Zi-qian,et al.Intrinsic Self-healing Polysiloxane Materials: From Single Dynamic Crosslinked Network to Multiple Dynamic Crosslinked Networks[J].ACTA POLYMERICA SINICA,2023,54(07):1028-1054.
叶娟,祖兆基,林子谦等.本征型自修复聚硅氧烷材料：从单重动态交联网络到多重动态交联网络[J].高分子学报,2023,54(07):1028-1054. DOI： 10.11777/j.issn1000-3304.2022.22362.

Ye Juan,Zu Zhao-ji,Lin Zi-qian,et al.Intrinsic Self-healing Polysiloxane Materials: From Single Dynamic Crosslinked Network to Multiple Dynamic Crosslinked Networks[J].ACTA POLYMERICA SINICA,2023,54(07):1028-1054. DOI： 10.11777/j.issn1000-3304.2022.22362.

摘要

近年来，本征型自修复聚硅氧烷材料因兼具聚硅氧烷的优异性能和损伤自修复功能，在复合材料、智能涂层、柔性器件等领域显示出巨大的应用潜能. 本征型自修复聚硅氧烷材料主要通过在聚硅氧烷交联网络中引入各种动态非共价键和动态共价键，借助动态键的可逆断裂与重组来重排交联网络而实现损伤修复. 迄今为止，已有数十种修复机制或体系被相继报道，但仍存在自修复能力与力学性能间的矛盾. 为解决这一根本问题，聚硅氧烷材料的动态交联网络正从单重动态交联向多重动态交联转变，并结合结晶或取向等工艺以及通过与改性纳米粒子复合，这些方法对自修复材料的力学性能和自修复能力的协同调控都有着重要影响. 鉴于此，本文根据本征型自修复聚硅氧烷材料中动态键和动态交联网络的结构差异，对其动态交联网络的结构设计、自修复机制、性能调控以及应用研究等方面进行了综述分析，并展望了本征型自修复聚硅氧烷材料未来的发展方向.

Abstract

Recently

intrinsic self-healing polysiloxane materials owing to the excellent performances of silicone materials like resistance to high/low temperature

electrical insulation

hydrophobicity and biocompatibility

and novel self-healing ability to damages

have shown great potential in smart coatings

sensors

flexible devices and other fields. Intrinsic self-healing polysiloxane materials are mainly constructed by introducing dynamic non-covalent bonds (hydrogen bond

metal-ligand coordination interaction

ionic bond

etc

.) or/and dynamic covalent bonds (Diels-Alder bond

imine bond

boronic ester bond

siloxane bond

disulphide bond

etc

.) into their crosslinked networks. These dynamic bonds can be reversibly dissociated and recombined under moderate external stimuli

which thus enable the polymers to repair damage and restore functions. To date

dozens of self-healing mechanisms or systems for polysiloxane materials have been reported

but there is still a great challenge between excellent self-healing ability and high mechanical strengths. To address this fundamental issue

the crosslinked network of polysiloxane materials is converted from single dynamic bond to multiple dynamic bonds. The synergetic combination of dynamic covalent bond and non-covalent bond plays an important role in the efficient regulation of mechanical performances and self-healing capacities. Besides

the orientation

crystallization or phase separation of polymer chains is also considered as an effective way to improve the comprehensive properties of self-healing polysiloxane materials

because it can compensate for the reduction of mechanical properties to a certain extent. Moreover

the compositing polysiloxane materials with diverse nano-fillers grafted with dynamic bonds not only improve their comprehensive performances but also give new functions such as electric conduction

sensing

heat conduction. In view of this

this paper will review the network structure design

self-healing mechanism

property regulation and potential applications of intrinsic self-healing polysiloxane materials

based on their structural differences of dynamic bonds and dynamic crosslinked networks. Finally

an outlook on the future development of intrinsic self-healing polysiloxane materials is prospected.

关键词

聚硅氧烷材料自修复动态交联网络动态非共价键动态共价键

Keywords

Polysiloxane materialsSelf-healingDynamic crosslinked networkDynamic noncovalent bondsDynamic covalent bonds

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