Synthesis of a comb-like silicone-epoxy co-polymer with high thermal stability and mechanical properties for ablative materials

被引:22
作者
Ling, Youquan [1 ]
Luo, Jiemin [1 ]
Heng, Zhengguang [1 ]
Chen, Yang [1 ]
Zou, Huawei [1 ]
Liang, Mei [1 ]
机构
[1] Sichuan Univ, Polymer Res Inst, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China
基金
中国国家自然科学基金;
关键词
Epoxy resin; Organosilicon intermediate; Thermal stability; Grafted copolymer; Ablative materials; RESINS; HYBRID; DEGRADATION; COMPOSITES; ELASTOMERS; SYSTEMS; DGEBA;
D O I
10.1016/j.reactfunctpolym.2020.104742
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
A comb-like silicone-epoxy co-polymer was prepared by synergizing o-allylphenol modified (UC-233) and methoxy-terminated methylphenyl silicone intermediate (PMPS-S). The SEM and DMA revealed that the comb-like silicone-epoxy co-polymer showed better compatibility owing to the pre-chemical grafting reaction. Additionally, TGA revealed that the carbon residue of the comb-like silicone-epoxy co-polymer reached 45.06% at 800 degrees C in N-2, the thermal stability of the comb-like silicone-epoxy co-polymer was improved and maintained the excellent mechanical properties of epoxy resin. Furthermore, TGA-FTIR shows the thermal degradation process that methoxy-terminated methylphenyl silicone intermediate (PMPS-S) and phenyl hydrogen-containing silicone oil (UC-233) could inhibit the degradation of epoxy resin. Therefore, it is believed that comb-like silicone-epoxy co-polymer, with mechanical properties, thermal stability and high thermal residual weight and will have application potential in ablative materials.
引用
收藏
页数:11
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