粒子侵蚀条件下硅橡胶复合材料烧蚀特性研究

doi:10.3969/j.issn.1000-1093.2019.04.020

兵工学报 ›› 2019, Vol. 40 ›› Issue (4): 848-856.doi: 10.3969/j.issn.1000-1093.2019.04.020

粒子侵蚀条件下硅橡胶复合材料烧蚀特性研究

王金金¹，查柏林¹，张艳²，张炜¹，苏庆东¹

（1.火箭军工程大学导弹工程学院，陕西西安 710025； 2.西安近代化学研究所，陕西西安 710065）

收稿日期:2018-08-09 修回日期:2018-08-09 上线日期:2019-06-10
通讯作者: 查柏林(1974—)，男，教授，博士生导师 E-mail:zhabailin@163.com
作者简介:王金金(1989—)，男，博士研究生。E-mail: hdwangjinjin@163.com
基金资助:
火炸药重大专项项目（2014年）

Study of Ablation Properties of Silicone Rubber Composite under Particle Erosion

WANG Jinjin¹, ZHA Bailin¹, ZHANG Yan², ZHANG Wei¹, SU Qingdong¹

(1.College of Missile Engineering, Rocket Force University of Engineering, Xi'an 710025, Shaanxi, China2.Xi'an Modern Chemistry Research Institute, Xi'an 710065, Shaanxi, China)

Received:2018-08-09 Revised:2018-08-09 Online:2019-06-10

摘要/Abstract

摘要： 为研究粒子侵蚀条件下硅橡胶复合材料的烧蚀规律和特性，采用一种可调节射流和粒子浓度的氧气-煤油燃气发生器，开展了烧蚀角度为15°~45°、粒子质量浓度范围为0~3.69%条件下的烧蚀试验，获得了粒子侵蚀对烧蚀率的影响规律。通过对试样的宏观形貌和微观结构进行分析，并结合热红联用试验，分析了硅橡胶复合材料的烧蚀特性和烧蚀过程。研究结果表明：粒子浓度对硅橡胶复合材料的烧蚀率有显著影响；随着粒子浓度的增加，质量烧蚀率急剧增大；随着烧蚀角度的增加，线烧蚀率增加、质量烧蚀率降低；硅橡胶复合材料烧蚀后形成炭化层、热解层、基体3层结构；材料热分解温度范围约为516~710 ℃，主要产物是环己烷以及少量CO₂和H₂O；粒子侵蚀破坏了表面炭化层结构的完整性，引起试样表面质量迁移，并促进了材料内部的热分解。

关键词: 硅橡胶复合材料, 粒子浓度, 烧蚀角度, 粒子侵蚀, 烧蚀特性

Abstract: An oxygen-kerosene gas generator which can adjust the jet and particle concentration is adopted for studying the ablation properties of silicon rubber composite under the particle erosion. Ablation tests under the conditions of ablation angles of 15-45 degrees and particle mass concentrations of 0-3.69% were carried out. The influence of particle erosion on ablation rate was analyzed. The ablation properties of silicone rubber composite is discussed by analyzing the macroscopic and microcosmic structures of the specimens. The results show that the particle concentration has an obvious influence on the ablation rate of the silicone rubber composite. The mass ablation rate increases sharply with the increase in particle concentration. The line ablation rate increases and the mass ablative rate decreases with the increase in erosion angle. The structures with char layer, pyrolytic layer and matrix layer are formed after test. The pyrolytic temperature of silicone rubber composite is about 516-710 ℃, the main products are cyclohexane and a small amount of CO₂ and H₂O. Particle erosion breaks the integrity of surface char layer structure, resulting in the surface migration of samples and promoting the thermal decomposition of inner material. Key

Key words: siliconerubbercomposite, particleconcentration, ablationangle, particleerosion, ablationproperty

中图分类号:

V435⁺.14

王金金，查柏林，张艳，张炜，苏庆东. 粒子侵蚀条件下硅橡胶复合材料烧蚀特性研究[J]. 兵工学报, 2019, 40(4): 848-856.

WANG Jinjin, ZHA Bailin, ZHANG Yan, ZHANG Wei, SU Qingdong. Study of Ablation Properties of Silicone Rubber Composite under Particle Erosion[J]. Acta Armamentarii, 2019, 40(4): 848-856.

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第40卷
第4期2019 年4月兵工学报ACTA
ARMAMENTARIIVol.40No.4Apr.2019

粒子侵蚀条件下硅橡胶复合材料烧蚀特性研究

Study of Ablation Properties of Silicone Rubber Composite under Particle Erosion

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