| 环氧类韧性耐烧蚀防热涂层的研制与表征 |
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| 引用本文： | 左瑞霖,李晨光,王慧,孙伟华,任英.环氧类韧性耐烧蚀防热涂层的研制与表征[J].宇航材料工艺,2011,41(2). |
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| 作者姓名： | 左瑞霖 李晨光 王慧 孙伟华 任英 |
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| 作者单位： | 航天材料及工艺研究所,北京,100076 |
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| 摘 要： | 针对现有环氧类防热涂层韧性差、不耐烧蚀的缺点,设计了一种环氧类防热涂层--TR-48.测试了其基本性能及3-5个批次的典型性能,并与国外现有涂层进行了比较.结果证明:TR-48具有韧性好、强度高、耐烧蚀等特点;其中扭伸强度为8.7-11.2 MPa,伸长率为6.8%-12.2%,TG分析800℃残碳率为51%,800℃马弗炉烧蚀5 min残碳率为38%-47%.利用SEM、DSC表征了涂层的烧蚀过程,发现600-800℃存在烧结反应.利用液氧/煤油发动机和电弧风洞考核试验考核了涂层在高温、高速气流环境下的表现,结果表明该涂层具有较好的抗冲刷及防热性能.
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| 关 键 词： | 防热涂层 环氧树脂 耐烧蚀 韧性 |
Development and Evaluation of Epoxy BasedTough Ablation Resistant Coating |
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| Zuo Ruilin,Li Chenguang,Wang Hui,Sun Weihua,Ren Ying.Development and Evaluation of Epoxy BasedTough Ablation Resistant Coating[J].Aerospace Materials & Technology,2011,41(2). |
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| Authors: | Zuo Ruilin Li Chenguang Wang Hui Sun Weihua Ren Ying |
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| Institution: | Zuo Ruilin Li Chenguang Wang Hui Sun Weihua Ren Ying (Aerospace Research Institute of Materials & Processing Technology,Beijing 100076) |
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| Abstract: | A novel epoxy-based coating designated as TR-48 is developed in-house at Aerospace Research Institute of Materials & Processing Technology.This material is composed of toughened epoxy binder for durable performance and is filled with special carbonate agent for improvement of ablation resistance.The TR-48 coating is evaluated by mechanical property testing,thermal physics property testing,ablation testing,as well as batch-stable testing.The tensile strength is 8.7 to 11.2 MPa,elongation rate is 6.8% to 12.2... |
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| Keywords: | Thermal protection coatings(TPC) Epoxy Ablation-resistant Toughness |
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