Composites Science and Engineering ›› 2020, Vol. 0 ›› Issue (6): 114-120.

• REVIEW • Previous Articles     Next Articles

RESEARCH ON ABLATIVE PROPERTIES AND MECHANISM OF PHENOLIC RESIN BASED COMPOSITE MODIFIED BY NANO INORGANIC FILLER: A REVIEW

LI Ran, GUO An-ru, WU Wen-jing, LI Jie*   

  1. Aerospace Research Institute of Materials & Processing Technology, Beijing 100076, China
  • Received:2019-08-13 Online:2020-06-28 Published:2020-06-28

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

CLC Number: