| 动态硫化EPDM/PP/SiO_2共混物的力学性能研究 |
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| 引用本文： | 陈丁桂,陈庆华. 动态硫化EPDM/PP/SiO_2共混物的力学性能研究[J]. 福建建筑高等专科学校学报, 2009, 0(6): 579-582,598 |
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| 作者姓名： | 陈丁桂 陈庆华 |
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| 作者单位： | [1]福建工程学院材料科学与工程系,福建福州350108 [2]福建师范大学化学与材料学院,福建省改性塑料技术开发基地,福建福州350007 |
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| 基金项目： | 基金项目：福建省重大专项专题（2007HZ0001-1）;福建省重大专项前期研究（2005HZ1004）;福建工程学院科研发展基金资助项目（GY-Z0538） |
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| 摘 要： | 研究了橡塑比、过氧化物复合硫化体系及KH-570硅烷偶联剂对动态硫化EPDM/PP/SiO2共混物的力学性能的影响。结果表明,随着PP含量的增加,动态硫化EPDM/PP/SiO2共混物的力学性能和硬度增加,但压缩永久变形增加,断裂伸长率却减小。过氧化物复合硫化体系中,当DCP为1.5份时,动态硫化EPDM/PP/SiO2共混物的综合物理力学性能较好。加入KH-570改性的白炭黑,对EPDM/PP/SiO2共混物起到补强的作用;且提高共混物的交联密度,降低压缩永久变形。
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| 关 键 词： | 动态硫化 三元乙丙橡胶 聚丙烯 白炭黑 力学性能 |
Study on the mechanical properties of dynamic vulcanized EPDM/PP/SiO_2 blends |
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| Chen Dinggui,Chen Qinghua. Study on the mechanical properties of dynamic vulcanized EPDM/PP/SiO_2 blends[J]. Journal of Fujian College of Architecture & C.E., 2009, 0(6): 579-582,598 |
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| Authors: | Chen Dinggui Chen Qinghua |
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| Affiliation: | 1. Materials Science and Engineering Depaament, Fujian University of Technology, Fuzhou 350108 ,China; 2. College of Chemistry and Materials Science, Fujian Normal University; Institute of Fujian Modified Plastic Research and Development Technology, Fuzhou 350007, China) |
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| Abstract: | Effects of rubber-plastic ratio, peroxide composite curing system and KH-570 silane coupling agent on the mechanical properties of dynamic vulcanized EPDM/PP/SiO2 blends were studied. The results show that the mechanical properties and hardness of the dynamic vulcanized EP- DM/PP/SiO2 blends increase gradually with the increase of the PP amount;that the compression set increases while the elongation at break reduces. When the DCP of peroxide composite curing system is 1.5phr,dynamically vulcanized blends EPDM/PP/SiO2 have overally good physical and mechan- ical properties. The mechanical strength of EPDM/PP/SiO2 blends and the crosslinking density increase while the compression set reduces with the addition of KH-570 modified silica. |
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| Keywords: | dynamic vulcanization ethylene propylene diene monomer（EPDM） polypropylene SiO2 mechanical property |
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