| 纳米SiO2/PS复合材料的制备及性能 |
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| 引用本文： | 王文生,高保娇,蒋玉梅,黄曦桥.纳米SiO2/PS复合材料的制备及性能[J].化工进展,2007,26(4):554-557. |
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| 作者姓名： | 王文生 高保娇 蒋玉梅 黄曦桥 |
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| 作者单位： | 中北大学材料科学与工程学院,山西,太原,030051 |
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| 摘 要： | 以无水乙醇为溶剂,使用偶联剂γ-(甲基丙烯酰氧)丙基三甲氧基硅烷(KH-570)对纳米SiO2表面进行了化学改性,采用溶液聚合法在改性后的纳米粒子表面接枝苯乙烯,然后通过熔融共混法制备了纳米SiO2/PS复合材料。利用红外光谱考察了改性前后纳米SiO2与硅烷偶联剂、苯乙烯的相互作用;利用扫描电镜观察了复合材料的断面形貌结构,研究了纳米SiO2含量对复合材料力学性能的影响。结果表明:与纯聚苯乙烯相比,纳米SiO2质量分数为4%时,复合材料的缺口冲击强度提高了7.6%、拉伸强度提高了0.98%,显示出纳米SiO2对聚苯乙烯具有同时增强增韧的效果。
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| 关 键 词： | 纳米SiO_2 表面改性 增强 增韧 |
| 文章编号： | 1000-6613（2007）04-0554-04 |
| 收稿时间： | 2006-10-23 |
| 修稿时间： | 2006年10月23 |
Preparation and performance of nanometer SiO2/PS composite |
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| WANG Wensheng,GAO Baojiao,JIANG Yumei,HUANG Xiqiao.Preparation and performance of nanometer SiO2/PS composite[J].Chemical Industry and Engineering Progress,2007,26(4):554-557. |
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| Authors: | WANG Wensheng GAO Baojiao JIANG Yumei HUANG Xiqiao |
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| Affiliation: | School of Material Science and Engineering, North University of China, Taiyuan 030051, Shanxi, China |
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| Abstract: | The surface of nano - SiO2 was modified by coupling agent KH-570 in EtOH, and then the polystyrene was grafted to its surface. The nano-SiO2/PS composite was prepared by the melt-blending process. The surface and profiles structures of nano-SiO2/PS composite was scanned with SEM and the effect of nano-SiO2 content on the mechanical properties of nano-SiO2/PS composite was studied. The results showed that compared with pure polystyrene, the notched impact strength and tensile strength of the composite increased by 7.6% and 0.98% respectively. |
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| Keywords: | nano-SiO2 surface modification reinforcing toughening |
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