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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.
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页数:11
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