纳米无机填料改性酚醛树脂基防热复合材料烧蚀性能研究现状

摘要/Abstract

摘要： 树脂基体中共混纳米无机填料是提高酚醛树脂基复合材料烧蚀性能的一种有效途径,无机填料与酚醛树脂共混改性制备复合材料的工艺简单、成本低、改性效果明显,已成为重要的研究方向。本文对无机填料特别是纳米无机填料改性酚醛树脂基烧蚀材料的烧蚀性能研究进行了梳理,并对多种纳米填料改性复合材料的烧蚀机理研究进行总结归纳。

关键词: 无机填料, 纳米填料, 酚醛树脂基复合材料, 烧蚀性能, 烧蚀机理

Abstract: Modification by blending nano inorganic fillers is an effective way to improve ablation performance of phenolic resin matrix composites. In this review, research on ablation properties of phenolic resin based ablative materials modified by inorganic fillers, especially nano-inorganic fillers were generalized, and the ablation mechanism of various nano-fillers modified composites were summarized. It is found that there are mainly three mechanisms of inorganic fillers to improve the ablative properties of composites, which are using inorganic filler melting to form a high melting point protective layer, improve the carbon residue rate of resin matrix byredox reaction, and improve compactness of carbon layer by increasing adhesive bonding. Due to its larger specific surface and intensive active groups, nano-fillers can effectively improve the compatibility between the molten glass micro particles and the carbonized layer, as well as the integrity and compactness of carbonized layer. And the uniform dispersion of nanometer filler at low addition amount is more beneficial to improve the ablation-resistant ability.

Key words: inorganic filler, nano filler, phenolic resin matrix composite, ablation performance, ablation mechanism

中图分类号:

TB332

李然, 郭安儒, 吴文敬, 李杰. 纳米无机填料改性酚醛树脂基防热复合材料烧蚀性能研究现状[J]. 复合材料科学与工程, 2020, 0(6): 114-120.

LI Ran, GUO An-ru, WU Wen-jing, LI Jie. RESEARCH ON ABLATIVE PROPERTIES AND MECHANISM OF PHENOLIC RESIN BASED COMPOSITE MODIFIED BY NANO INORGANIC FILLER: A REVIEW[J]. Composites Science and Engineering, 2020, 0(6): 114-120.

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