| 三元乙丙橡胶增韧PET/PC共混物的研究 |
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| 引用本文： | 杨海东,孙树林.三元乙丙橡胶增韧PET/PC共混物的研究[J].广州化工,2011,39(20):46-48. |
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| 作者姓名： | 杨海东 孙树林 |
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| 作者单位： | 长春工业大学教育部合成树脂与特种纤维工程研究中心,吉林长春,130012 |
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| 摘 要： | 采用三元乙丙橡胶（EPDM）及甲基丙烯酸环氧丙酯接枝三元乙丙橡（EPDM-g-GMA）作为PET/PC共混物的改性剂,并对共混体系的力学性能、相容性和断裂机理进行研究。力学性能测试结果表明EPDM-g-GMA质量分数为15%～20%时,共混体系实现了脆韧转变,当加到25%时冲击强度最高可达860 J/m,实现超韧;当PET/PC组成比为48/32时,PET/PC相容性最好,共混体系力学性能最佳。EPDM-g-GMA中环氧官能团与PET的端羧基、羟基发生反应使共混体系相容性提高。SEM结果显示共混物的增韧机理是基体的剪切屈服。
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| 关 键 词： | PET PC 乙丙橡胶 增韧 |
Toughening PET/PC Blends with Ethylene-propylene-diene Rubber |
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| YANG Hai-dong,SUN Shu-lin.Toughening PET/PC Blends with Ethylene-propylene-diene Rubber[J].GuangZhou Chemical Industry and Technology,2011,39(20):46-48. |
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| Authors: | YANG Hai-dong SUN Shu-lin |
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| Affiliation: | YANG Hai-dong1,SUN Shu-lin1,2(1 Research Center of the Ministry of Education for Synthesized Resin and Special Fiber,Changchun University of Technology,Jilin Changchun 130012,2 Harbin Xinda Macromolecule Material Co.,Ltd.,Heilongjiang Harbin 150066,China) |
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| Abstract: | Ethylene-propylene-diene（EPDM） and glycidyl methacrylate grafted EPDM（EPDM-g-GMA） were used as modifiers to toughen poly（ethylene terephthalate）（PET）/bisphenol A polycarbonate（PC） blends.The mechanical properties,miscibility and fracture mechanism of blends were investigated.The results showed that brittle-ductile transition took place with 15%~20% EPDM-g-GMA addition.Impact strength value of 860 J/m was achieved which displayed the super-toughness.The blends showed better compatibility and higher impact strength when the weight ratio of PET/PC was 48/32.Shear yielding of matrix was the major toughening mechanisms of the rubber toughened PET/PC blends. |
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| Keywords: | PET PC ethylene-propylene-diene toughening |
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