Facile fabrication of low-content surface-assembled MXene in silicone rubber foam materials with lightweight, wide-temperature mechanical flexibility, improved flame resistance and exceptional smoke suppression
- Authors
- Chen, Hai-Yang; Li, Yang; Wang, Peng-Huan; Qu, Zhang-Hao; Qin, Yu-Qing; Yang, Ling; Li, Jia-Yun; Gong, Li-Xiu; Zhao, Li; Zhang, Guo-Dong; Gao, Jie-Feng; Tang, Long-Cheng
- Issue Date
- Feb-2024
- Publisher
- ELSEVIER SCI LTD
- Keywords
- A. Polymer-matrix composites (PMCs); A. Foams; B. Flame/fire retardancy; D. Microstructural analysis
- Citation
- COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, v.177
- Journal Title
- COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
- Volume
- 177
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/90213
- DOI
- 10.1016/j.compositesa.2023.107907
- ISSN
- 1359-835X
1878-5840
- Abstract
- Silicone rubber foam (SiRF) is a promising porous material that is widely applied in various fields. However, its intrinsic flammability nature remains a significant challenge. One of the simplest and the most economical solutions is to incorporate high content flame-retardant fillers. Unfortunately, such approach is limited by several drawbacks, including poor filler dispersion, difficulty in processing and negative effect on mechanical flexibility. Herein, we report a green and facile strategy for surface-assembling ultralow content of MXene sheets bonded onto the pore surface of SiRF via the effective foaming reaction process. The as-prepared MSiRF-0.2 composite at 0.2 wt% MXene exhibited lightweight characteristic, wide-temperature mechanical flexibility, UL94-V0 grade, limited oxygen index of > 27 %, and exceptional smoke suppression (reduction by 88.24 %). Furthermore, flameretardant mechanism was discussed based on the char structure observation. This study provides a novel approach for fabricating mechanically flexible and flame-retardant SiRF via in-situ reactive assembly of low content MXene sheets.
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