期刊
POLYMERS
卷 11, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/polym11111844
关键词
benzoxazine resins; ablation composites; ultra-high temperature; oxygen enrichment
资金
- Liaoning Provincial Science and Technology Program [20170540780]
A novel type of silicon rubber composite with benzoxazine resins (BZs) and ZrO2 was prepared. The ablative response of the composites was investigated. The results showed that the composites with BZs had superior thermal stability and higher resides compared to the pristine composites. The linear ablation rate of the composites decreased significantly with the increase in ZrO2 content. The maximum back-face temperature of the burnt samples was no more than 100 degrees C for the obtained composites. Three major ablation processes were carried out simultaneously during the ablation processing. These mainly involved the carbonization of the composite, and the formation of ceramic compounds such as SiC and ZrC, as well as the shielding effect of the ablated layer, which subsequently enhanced the ablation resistance of the composites.
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