| NR-g-（GMA-co-St）与nano-SiO_2协同增强增韧PVC的研究 |
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| 引用本文： | 郑辉林,李志君,赵红磊,胡树.NR-g-（GMA-co-St）与nano-SiO_2协同增强增韧PVC的研究[J].弹性体,2009,19(2):10-14. |
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| 作者姓名： | 郑辉林 李志君 赵红磊 胡树 |
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| 作者单位： | 海南大学材料与化工学院高分子材料与工程系,海南,儋州,571737 |
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| 摘 要： | 研究了甲基丙烯酸缩水甘油酯（GMA）/苯乙烯（St）多单体熔融接枝天然橡胶（NR）NR-g-（GMA-co-St）]与nano-SiO2协同增强增韧PVC的力学性能,并通过SEM、TG-DTG表征了改性PVC的相结构及耐热分解性能。结果表明,当NR-g-（GMA-co-St）和nano-SiO2的质量分数分别为5%和3%时,相界面的结合强度明显提高,达到较好的协同增强增韧效果;与未改性PVC相比,增强增韧PVC的缺口冲击强度和断裂拉伸强度分别提高了78.9%和50.5%,并且具有较好的耐热分解性能。
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| 关 键 词： | 聚氯乙烯 天然橡胶 多单体熔融接枝 纳米二氧化硅 协同增强增韧 |
NR-g-(GMA-co-St)/nano-SiO2 synergistic reinforcing and toughening PVC |
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| ZHENG Hui-lin,LI Zhi-jun,ZHAO Hong-lei,HU Shu.NR-g-(GMA-co-St)/nano-SiO2 synergistic reinforcing and toughening PVC[J].China Elastomerics,2009,19(2):10-14. |
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| Authors: | ZHENG Hui-lin LI Zhi-jun ZHAO Hong-lei HU Shu |
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| Affiliation: | (Department of Polymer Materials Science and Engineering, Hainan University ,Danzhou 571737, China) |
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| Abstract: | The mechanical properties of NR-g-（GMA-co-St） and nano-SiO2 synergistic reinforce and toughen PVC were studied. The structure and heat and break down performance of composite were characterized by the SEM ＆TG-DTG. The results show that when the NR-g-（GMA-co-St） and nano- SiO~ mass fraction of 5% and 3%respectively,the interface strengthened greatly. Comparing with the pure PVC,impact strength and tensile strength of the composite have increased by 78.9% and 50.5% respectively,the better effect of synergistic reinforcing and toughening is achieved, and the composite has good performance of heat decomposition. |
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| Keywords: | polyvinyl chloride natural rubber muhimonomer melt graft nano silica synergistic reinforcing and loughening |
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