| 耐烧蚀、低密度三元乙丙橡胶绝热层的研制 |
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| 引用本文： | 张新航%李强%赵荣%张海鹏%张崇耿.耐烧蚀、低密度三元乙丙橡胶绝热层的研制[J].宇航材料工艺,2005,35(1):39-41. |
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| 作者姓名： | 张新航%李强%赵荣%张海鹏%张崇耿 |
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| 作者单位： | 陕西剑峰机械研究所,西安,710065 |
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| 摘 要： | 采用过氧化物硫化体系，芳纶纤维和耐烧蚀树脂作为耐烧蚀填料，阻燃剂为无卤的含磷阻燃剂，并通过L9(3^3)正交实验确定了含磷阻燃剂、耐烧蚀树脂、气相二氧化硅的最佳用量分别为25份、15份、15份。确定最佳配方和工艺生产出的三元乙丙橡胶绝热层密度为1．06—1．07g／cm^3，线烧蚀率为0.099mm／s，质量烧蚀率为0．043g／s，满足了某固体火箭发动机燃烧室内壁绝热层的技术要求。
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| 关 键 词： | 三元乙丙橡胶 含磷阻燃剂 过氧化物硫化 树脂 低密度 烧蚀 最佳用量 绝热层 固体火箭发动机 燃烧室 |
Preparation of EPDM Rubber Insulation with Ablative Performance and Low Density |
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| Zhang Xinhang Li Qiang,Zhao Rong Zhang Haipeng Zhang Chonggeng.Preparation of EPDM Rubber Insulation with Ablative Performance and Low Density[J].Aerospace Materials & Technology,2005,35(1):39-41. |
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| Authors: | Zhang Xinhang Li Qiang Zhao Rong Zhang Haipeng Zhang Chonggeng |
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| Abstract: | Peroxide-vulcanized technology is used for preparation of the insulation.Aramid fiber, phosphorus-containing flame retardant and ablative resin are added in formulation as ablative fillers.The optimum contents of phosphorus-containing flame retardant, aramid fiber and air-phase silicon dioxide are 25,15 and 15 parts respectively through L 9(3 3) orthogonal design.The optimum properties of the set EPDM rubber insulation are as follows: density 1.06 to 1.07 g/cm 3, linear ablative rate 0.099mm/s, mass ablative rate 0.043g/s.All these properties can satisfy technology need of insulator for some solid racket motor. |
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| Keywords: | Ablation Low density EPDM rubber Insulator Preparation |
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