刮涂型人工脱粘层的力学和烧蚀性能研究

doi:10.11896/cldb.24040003

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Abstract To enhance the efficiency of stress release layer formation, a novel scratchable composite is devised to develop the stress-release material. Herein, the effects of carbon fiber powder, polyimide fiber, and aramid pulp on the mechanical and ablation properties of CTBN-based composites are studied. It is found that the addition of carbon fiber powder can increase the tensile strength of the composites from 3.97 MPa to 4.54 MPa, and the ablation resistance of the composites is also improved to a certain extent. In addition, the addition of polyimide fiber can reduce the line ablation rate of the composites from 0.292 mm/s to 0.151 mm/s, but the mechanical properties are also significantly reduced. Moreover, the addition of aramid pulp can greatly improve the ablation performance while retaining the most mechanical properties of the composites. Furthermore, with 0.9 phr aramid pulp added, the CTBN-based composites maintain the tensile strength of 3.96 MPa, the elongation at break of 144%, the ablation rate of 0.165 mm/s, and the tear strength from EPDM-based composites of 1.80 MPa, and can be formed through scrape coating, which is a potential candidate for the scratchable stress release materials.

Key words： stress release material carboxylated-terminated liquid acrylonitrile rubber(CTBN) mechanical property ablation property

Published: 25 May 2025 Online: 2025-05-13

CLC number:

TQ333.7

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	Articles by authors
	LI Yang
	CHEN Yanbin
	HU Junjie
	WU Qianqiu
	HUANG Hailong

Cite this article:

LI Yang,CHEN Yanbin,HU Junjie, et al. Research on the Mechanical and Ablation Properties of Scratchable Stress Release Materials[J]. Materials Reports, 2025, 39(10): 24040003-5.

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https://www.mater-rep.com/EN/10.11896/cldb.24040003 OR https://www.mater-rep.com/EN/Y2025/V39/I10/24040003

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