| 聚氨酯弹性体／纳米二氧化硅改性聚氯乙烯材料的研制 |
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| 引用本文： | 王士财,张晓东,楼涛,佘希林,李志国.聚氨酯弹性体／纳米二氧化硅改性聚氯乙烯材料的研制[J].弹性体,2009,19(5):37-40,64. |
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| 作者姓名： | 王士财 张晓东 楼涛 佘希林 李志国 |
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| 作者单位： | 青岛大学,化学化工与环境学院,山东,青岛,266071 |
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| 摘 要： | 在考察了聚氨酯弹性体/纳米二氧化硅/聚氯乙烯（PU/nano-SiO2/PVC）反应挤出工艺的基础上,采用反应挤出一步法制备了PU弹性体/nano-SiO2改性的PVC材料,并对其力学性能进行了实验研究。结果表明,PU/nano-SiO2的质量比为5∶1时,增韧改性效果最佳,PU弹性体和nano-SiO2能协同增韧PVC,且nano-SiO2具有补强作用,当PU/nano-SiO2/PVC质量比为5∶1∶20时,改性材料的综合性能最优,此时样品材料的冲击强度达到45.6kJ/m2,拉伸强度为50.3MPa。
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| 关 键 词： | 聚氨酯弹性体 纳米二氧化硅 聚氯乙烯 改性 |
Preparation of PVC material modified by polyurethane elastomer/nano-SiO2 |
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| WANG Shi-cai,ZHANG Xiao-dong,LOU Tao,SHE Xi-ling,LI Zhi-guo.Preparation of PVC material modified by polyurethane elastomer/nano-SiO2[J].China Elastomerics,2009,19(5):37-40,64. |
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| Authors: | WANG Shi-cai ZHANG Xiao-dong LOU Tao SHE Xi-ling LI Zhi-guo |
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| Affiliation: | (Chemical Engineering and Environment Institute, Qingdao University ,Qingdao 266071, China) |
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| Abstract: | Polyvinyl chloride（PVC） material modified by polyurethane（PU） elastomer/nanometer silicon dioxide （nano-SiO2） was prepared by one-step reactive extrusion technology（OSRET）, on the basis of studying on technological procedure of OSRET PU/nano-SiO2/PVC blending. The properties of PVC modified by PU/nano-SiO2 had been experimentally studied. The optimum toughening effectiveness was acquired when the mass ratio of PU elastomer to nano-SiO2 equaled to 5：1. There existed a synergism in toughening between nano-SiO2 and PU elastomer, and nano-SiO2 played a function Of reinforcer. When the mass ratio of PU elastomer to nano-SiO2 to PVC was 5：1：20, the modified material has excelllent comprehensive properties with the impact strength of 45.6 kJ/m^2 and tensile strength of 50. 3 MPa. |
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| Keywords: | polyurethane elastomer nanometer silicon dioxide polyvinyl chloride modification |
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