Thermophysical properties of hybrid silica phenolic ablative composite: Theoretical and experimental analysis,Polymer Composites

当前位置： X-MOL 学术 › Polym. Compos. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Thermophysical properties of hybrid silica phenolic ablative composite: Theoretical and experimental analysis
Polymer Composites ( IF 4.8 ) Pub Date : 2022-06-14 , DOI: 10.1002/pc.26766
Aravind Jithin A. J. _{1,

2} , Sushanta K. Panigrahi ₁ , Sasikumar P. ₂ , Shreedhar K. Rao ₂ , Shabeeb Ali T. K. ₂ , Krishnakumar G. ₂

Affiliation

Silica phenolic ablative composites are used in many high-temperature applications like rocket/missile solid motor nozzles, space re-entry vehicles, and so forth. As ablative composite with lower thermal conductivity and density can save considerable cost, a hybrid silica phenolic ablative composite was developed by establishing a novel processing methodology using chopped silica fiber, phenolic resin, and hollow glass microsphere. The thermophysical properties of the developed hybrid composite are analyzed and established the scientific know-how. The developed composites, with 36% lower density, displayed 50% lower thermal conductivity and 50% lower thermal diffusivity than standard silica phenolic composite. Since a proper thermal conductivity model for a three-component composite with matrix, fiber, and hollow glass microsphere is not available, the most suitable model for the developed composite is established.

中文翻译：

杂化二氧化硅酚醛烧蚀复合材料的热物理性质：理论和实验分析

二氧化硅酚醛烧蚀复合材料用于许多高温应用，如火箭/导弹固体发动机喷嘴、太空再入飞行器等。由于具有较低导热率和密度的烧蚀复合材料可以节省大量成本，因此通过建立一种使用短切二氧化硅纤维、酚醛树脂和空心玻璃微球的新型加工方法，开发了一种混合二氧化硅酚醛烧蚀复合材料。对开发的杂化复合材料的热物理性质进行了分析，并建立了科学技术。与标准二氧化硅酚醛复合材料相比，开发的复合材料密度降低了 36%，热导率降低了 50%，热扩散率降低了 50%。由于没有合适的热导率模型用于具有基体、纤维和空心玻璃微球的三组分复合材料，

更新日期：2022-06-14

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11