| Study on Properties of Sulfur Loaded Modified MWCNTs/NR Composites |
| Received:July 05, 2023 Revised:July 05, 2023 |
| DOI：10.12136/j.issn.1000-890X.2025.04.0267 |
| Key Words: MWCNTs；sulfur loaded modification；NR；composite；wear resistance；compression heat build-up |
| Author Name | Affiliation | E-mail | | QIN Lipan | Beijing Graphene Institute Co., Ltd | qinlipanly@163.com | | LIU Xiaochen | Beijing Graphene Institute Co., Ltd | | | YANG Lanxiang | Beijing Graphene Institute Co., Ltd | | | LIAO Wanlin | Ningxia Shenzhou Tyre Co. Ltd | | | CAO Jianping* | Beijing Graphene Institute Co., Ltd | caojp@bgi-graphene.com |
|
| Hits: 79 |
| Download times: 34 |
| Abstract: |
| Multi-walled carbon nanotubes（MWCNTs） were modified by sulfur loading to prepare sulfur loaded modified MWCNTs（MWCNTs-S for short），and MWCNTs-S/Natural Rubber（NR） composites were prepared by emulsion blending method.The results showed that MWCNTs-S exhibited obvious characteristic diffraction peaks of sulfur，the 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 agglomerations.Compared with MWCNTs/NR composite，the processing safety，tensile strength，tear strength and wear resistance of MWCNTs-S/NR composites were improved，the compression heat build-up was reduced.The reinforcement effect of MWCNTs-S on the composites was significant.This work provided a new idea and method for the modification of MWCNTs and its reinforcement of rubber composites.ion blending method. The results show that XRD of MWCNTs modified with sulfur load shows obvious characteristic diffraction peaks of sulfur. Raman results show that the ID/IG value increases from 0.97 to 1.08, and the disorder and surface defect degree of MWCNTs increase. SEM-EDS showed that the sulfur nanocrystals dispersed uniformly on the surface of MWCNTs without forming large agglomerations. The processing properties of rubber composite have been improved, and the mechanical properties have been significantly improved, the tensile strength has been increased from the original 28.4 MPa to 29.9 MPa, and the tearing strength has been increased from the original 120.3 kN?m-1 to 139.2 kN?m-1. The rubber composite prepared has excellent mechanical properties. This work provides a new idea and method for the modification of MWCNTs and the reinforcement of rubber composites. |
|
View Full Text
View/Add Comment Download reader |
| Close |
