| 石墨烯掺杂补强天然橡胶的研究进展 |
| Research Progress of NR Reinforced by Doping Graphene |
| 投稿时间：2022-04-15 修订日期：2022-04-15 |
| DOI：10.12136/j.issn.1000-890X.2023.07.0551 |
| 中文关键词: 天然橡胶 石墨烯 复合材料 掺杂 补强 |
| 英文关键词: NR graphene composite doping reinforcement |
| 基金项目:国家自然科学基金资助项目（22168017）；海南省自然科学基金资助项目（222CXTD513，2019RC187） |
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| 中文摘要: |
| 概述石墨烯掺杂补强天然橡胶（NR）的研究进展。石墨烯添加到NR中，可以提高NR的力学性能、热性能、导电性能和耐老化性能；石墨烯在NR中的分散性及与NR的界面相互作用是影响其补强效果的关键因素；石墨烯与NR化学结合对提高其补强作用非常重要；氧化石墨烯（GO）表面具有含氧活性基团，NR在紫外光老化或自然老化的过程中也会产生活性基团，在适合的条件下GO与NR之间直接发生接枝聚合反应，最大程度地增大二者的界面作用，因而GO/NR复合材料具有老化自修复功能；光催化剂调控的“多样化”可控自由基聚合可以调控拓扑结构超分子聚合物网络结构，使其具有良好的刺激响应性、自修复性和形状记忆性等。 |
| 英文摘要: |
| The research progress of natural rubber（NR） reinforced by doping graphene was summarized.The addition of graphene to NR could improve the mechanical properties，thermal properties，electrical conductivity and aging resistance of NR.The dispersion of graphene in NR and the interfacial interaction between graphene and NR were the key factors affecting the reinforcement effect of graphene.The chemical binding of graphene with NR was very important to improve its reinforcement effect.Graphene oxide（GO） had oxygen-containing active groups on its surface，which under suitable conditions could react with the active groups on the NR macromolecules generated in the process of ultraviolet aging or natural aging.The grafting reaction between GO and NR could enhance the interfacial interaction and enable the self-healing function of the GO/NR composites.The diversified controllable free radical polymerization by photocatalyst could regulate the network structure of supramolecular polymer，so that it had good stimulus-response characteristics，self-healing ability and shape memory property. |
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