硫负载改性多壁碳纳米管/天然橡胶复合材料的性能研究  

Study on Properties of Sulfur Loaded Modified MWCNTs/NR Composites

作　　者：秦立攀 刘晓晨 杨兰香 廖万林 曹建苹 QIN Lipan;LIU Xiaochen;YANG Lanxiang;LIAO Wanlin;CAO Jianping(Beijing Graphene Institute Co.,Ltd,Beijing 100095,China;Ningxia Shenzhou Tire Co.,Ltd,Shizuishan 753400,China)

机构地区：[1]北京石墨烯研究院有限公司,北京100095 [2]宁夏神州轮胎有限公司,宁夏石嘴山753400

出　　处：《橡胶工业》2025年第4期267-272,共6页China Rubber Industry

基　　金：宁夏回族自治区重点研究项目(2020ZDYF1131)。

摘　　要：使用硫对多壁碳纳米管(MWCNTs)进行负载改性,制得硫负载改性MWCNTs(简称MWCNTs-S),采用乳液共混法制备MWCNTs-S/天然橡胶(NR)复合材料。结果表明:MWCNTs-S有明显的硫的特征衍射峰,其晶体无序度和表面缺陷程度增大,硫纳米粒子在MWCNTs表面分散均匀,未形成大的团聚;与MWCNTs/NR复合材料相比,MWCNTs-S/NR复合材料的加工安全性有所改善,拉伸强度、撕裂强度和耐磨性能提升,压缩生热降低,MWCNTs-S对复合材料的补强效果显著。本工作为MWCNTs改性及其对橡胶复合材料的补强提供了一种新的思路和方法。Multi-walled carbon nanotubes(MWCNTs)were modified by sulfur loading to obtain sulfur loaded modified MWCNTs(MWCNTs-S for short),and MWCNTs-S/Natural Rubber(NR)composites were prepared by the emulsion blending method.The results showed that MWCNTs-S exhibited obvious characteristic diffraction peaks of sulfur,its crystal disorder and surface defect degree of MWCNTs-S increased,and the sulfur nanoparticles dispersed uniformly on the surface of MWCNTs-S without forming large agglomerates.Compared with MWCNTs/NR composite,the MWCNTs-S/NR composites demonstrated improved processing safety,enhanced tensile strength,tear strength and wear resistance,as well as reduced compression heat build-up,which indicated a significant reinforcing effect of MWCNTs-S on the composites.This work provided a new idea and method for the modification of MWCNTs and its reinforcement of rubber composites.

关 键 词：多壁碳纳米管 硫负载改性 天然橡胶 复合材料 耐磨性能 压缩生热 

分 类 号：TQ330.383[化学工程—橡胶工业]