| 纳米SiO_2增强增韧聚丙烯(PP)的研究 |
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| 引用本文： | 赵贵哲,刘亚青.纳米SiO_2增强增韧聚丙烯(PP)的研究[J].吉林大学学报(工学版),2005,35(2):205-0209. |
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| 作者姓名： | 赵贵哲 刘亚青 |
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| 作者单位： | 1. 太原理工大学,化学工程与技术学院,太原,030012
2. 中北大学,化学工程学院,太原,030051 |
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| 基金项目： | 山西省青年科学基金资助项目(20011012). |
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| 摘 要： | 采用微胶囊包覆的方法对二氧化硅无机纳米粒子(nano SiO2)进行了表面处理,然后通过熔融共混法制备聚丙烯(PP)/ SiO2 纳米复合材料。力学性能测试、DSC及材料断面形貌分析等表明:用此改性方法制得的 nano SiO2 微胶囊采用常规的熔融混合法就能在基体树脂PP中达到纳米级的均匀分散,且在复合材料中可起异相成核的作用,从而提高 PP的结晶温度和结晶度,并能使PP/SiO 复合材料的拉伸强度提高43%,缺口冲击强度提高107%。
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| 关 键 词： | 有机高分子材料 PP nanoSiO2 微胶囊包覆 熔融共混 增强增韧 |
| 文章编号： | 1671-5497(2005)02-0205-05 |
| 收稿时间： | 2004-09-28 |
| 修稿时间： | 2004年9月28日 |
Study on Nano-SiO2 Reinforcing and Toughening Poly-Propylene |
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| ZHAO Gui-zhe,LIU Ya-qing.Study on Nano-SiO2 Reinforcing and Toughening Poly-Propylene[J].Journal of Jilin University:Eng and Technol Ed,2005,35(2):205-0209. |
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| Authors: | ZHAO Gui-zhe LIU Ya-qing |
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| Affiliation: | ZHAO Gui-zhe~1,LIU Ya-qing ~2 |
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| Abstract: | The nano-sized SiO_2 inorganic particles were modified by the method of microencapsulation and then filled into poly-propylene (PP) by melt-blending process. Determinations of the mechanical properties, differential scanning calorimetry (DSC), and morphologies of cross-sections show that the treatment of nano-SiO_2 surface by the above way can contribute to the uniform dispersion of nano-fillers in the matrix on nano-scale. The addition of the microencapsulated nano-SiO_2 increases both the crystalline temperature and the crystallinity due to a strong heterogeneous nucleation of nano-par ticles. Compared with pure PP,the tensile strength of PP/SiO_2 can be increased by 43%, and the notched impact strength of it can be increased by 107%. |
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| Keywords: | organic macromolecule materials PP nano-SiO_2 microencapsule melt-blending process reinforcing and toughening |
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