| 基于离子超分子网络实现自修复天然橡胶的制备 |
| |
| 引用本文： | 王 琳,孙文硕,王晨露,杜爱华.基于离子超分子网络实现自修复天然橡胶的制备[J].合成橡胶工业,2022,0(4):279-284. |
| |
| 作者姓名： | 王 琳 孙文硕 王晨露 杜爱华 |
| |
| 作者单位： | 青岛科技大学 橡塑材料与工程教育部重点实验室，山东 青岛 266042 |
| |
| 摘 要： | 将甲基丙烯酸锌（ZDMA）或聚（甲基丙烯酸锌）低聚物（PM）引入到天然橡胶中，同时并用炭黑/白炭黑与天然橡胶共混，制备一种具有自修复性能的耐屈挠疲劳橡胶。研究结果表明，与PM相比，ZDMA可形成以离子交联为主的可逆超分子网络，赋予了硫化胶更好的自修复功能，当其用量为40份（质量）时硫化胶的自修复效率最高，接近100%。不饱和羧酸盐（ZDMA或PM）与传统填料（炭黑和白炭黑）并用时，PM仅在前期可有效抑制裂纹的扩展，ZDMA可明显提高材料的耐屈挠疲劳性能，当m（ZDMA）/m（炭黑）为20/40时硫化胶的耐屈挠疲劳性能最好。
|
| 关 键 词： | 天然橡胶 不饱和羧酸盐 离子超分子网络 自修复 耐屈挠疲劳性能 |
Preparation of self-healing natural rubber based on |
| |
| WANG Lin,SUN Wen-shuo,WANG Chen-lu,DU Ai-hua.Preparation of self-healing natural rubber based on[J].China Synthetic Rubber Industry,2022,0(4):279-284. |
| |
| Authors: | WANG Lin SUN Wen-shuo WANG Chen-lu DU Ai-hua |
| |
| Affiliation: | Key Laboratory of Rubber-Plastics of Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China |
| |
| Abstract: | Zinc methacrylate （ZDMA） or poly （zinc methacrylate） oligomer （PM） were introduced into natural rubber or blended with carbon black/silica and natural rubber to prepare a flexible fatigue resistant rubber with self-healing property. The results showed that ZDMA had better self-hea-ling than PM because of the reversible supramolecular network. When the amount of ZDMA was 40 phr, the self-healing efficiency of vulcanizate was the highest, close to 100%. Unsaturated carboxylate （ZDMA/PM） was combined with traditional fillers （carbon black/silica）, PM could effectively inhibit crack propagation only in the early stage, and ZDMA could significantly improve the flexure resistance of the material. The vulcanizate had the best flexural fatigue resistance when m（ZDMA）/m（carbon black）was 20/40. |
| |
| Keywords: | natural rubber unsaturated carboxylate ionic supramolecular network self-healing flexure fatigue resistance |
|
| 点击此处可从《合成橡胶工业》浏览原始摘要信息 |
|
点击此处可从《合成橡胶工业》下载全文 |
