| Zn(MAA)_2和Mg(MAA)_2用量对NBR/EPDM基柔性绝热层材料力学和烧蚀性能的影响(英文) |
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| 引用本文： | 高国新,李雪飞,孟庆杰,郑元锁,金志浩.Zn(MAA)_2和Mg(MAA)_2用量对NBR/EPDM基柔性绝热层材料力学和烧蚀性能的影响(英文)[J].材料工程,2009(Z2). |
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| 作者姓名： | 高国新 李雪飞 孟庆杰 郑元锁 金志浩 |
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| 作者单位： | 西安交通大学材料科学与工程学院;西安交通大学理学院; |
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| 摘 要： | 将少量Zn(MAA)2和Mg(MAA)2分别添加到EPDM/NBR橡胶中制成柔性绝热层材料,分别研究了其各自用量对绝热层材料交联密度、拉伸强度、断裂伸长率、硬度、密度和烧蚀速率等的影响。结果显示:随着Zn(MAA)2或Mg(MAA)2用量增加,绝热层材料的交联密度、拉伸强度、密度等均呈现增大趋势,而材料的硬度基本不变;沿纤维方向上绝热层的断裂伸长率先增加后降低,均在用量为3phr时出现最大值,而垂直于纤维方向上Zn(MAA)2增强的绝热层其断裂伸长率急剧下降,Mg(MAA)2增强的绝热层则缓慢下降;与Zn(MAA)2增强体系相比,Mg(MAA)2增强体系的交联密度、断裂伸长率均明显高于前者,材料密度、线烧蚀速率和质量烧蚀速率则低于前者,是柔性绝热层材料获得高伸长率、低烧蚀速率的理想添加剂;综合考虑绝热层材料的各项性能,Mg(MAA)的最佳用量以2～4phr为宜。
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| 关 键 词： | Zn(MAA)2 Mg(MAA)2 绝热层 断裂伸长率 烧蚀速率 |
Effect of Zn(MAA)_2 and Mg(MAA)_2 Content on Mechanical and Ablative Properties of NBR/EPDM Based Thermal Insulating Composites |
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| GAO Guo-xin,LI Xue-fei,MENG Qing-jie,ZHENG Yuan-suo,JIN Zhi-hao.Effect of Zn(MAA)_2 and Mg(MAA)_2 Content on Mechanical and Ablative Properties of NBR/EPDM Based Thermal Insulating Composites[J].Journal of Materials Engineering,2009(Z2). |
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| Authors: | GAO Guo-xin LI Xue-fei MENG Qing-jie ZHENG Yuan-suo JIN Zhi-hao |
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| Affiliation: | GAO Guo-xin1,LI Xue-fei2,MENG Qing-jie2,ZHENG Yuan-suo2,JIN Zhi-hao1(1.School of Materials Science , Engineering,Xi'an Jiaotong,Xi'an 710049,China,2.School of science,Xi'an Jiaotong University,China) |
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| Abstract: | The effects of Zn(MAA)2 and Mg(MAA)2 content on mechanical properties,such as crosslink density,tensile strength,elongation at break,density and Short-A hardness,and ablative properties of NBR/EPDM based thermal insulating composites have been studied respectively.The results show that with the increasing of Zn(MAA)2 or Mg(MAA)2 contents,crosslink density,tensile strength and density of the insulation all increase gradually.However,the Short-A hardness changes very little.In the direction of short aramid fi... |
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| Keywords: | Zn(MAA)2 Mg(MAA)2 insulation elongation ablative rate |
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