采用原子转移自由基聚合(ATRP)法在纳米二氧化硅(SiO<,2>)粒子表面接枝聚苯乙烯(PS),并以此对高密度聚乙烯(HDPE)进行改性.红外光谱(FT-IR)、透射电镜(TEM)、扫描电镜(SEM)及力学性能等测试结果表明,所制备的SiO<,2>-g-PS纳米复合粒子在HDPE中分散比较均匀,使HDPE/SiO<,2>-g-PS复合材料的缺口冲击强度及拉伸强度均明显高于纯HDPE及HDPE/SiO<,2>复合材料.加入相容剂苯乙烯-乙烯-丁烯-苯乙烯嵌段共聚物(SEBS)后,SiO<,2>-g-PS纳米复合粒子在HDPE中分散更加均匀,HDPE/SiO<,2>-g-PS复合材料的力学性能进一步提高.
参考文献
| [1] | 樊卫华,白娟,陈金周,王经武.母料中弹性体不同配比对HDPE/E-TMB共混物热性能及结晶形态的影响[J].高分子材料科学与工程,2006(04):176-179. |
| [2] | Z. Bartczak;A. S. Argon;R. E. Cohen;M. Weinberg .Toughness mechanism in semi-crystalline polymer blends: I. High-density polyethylene toughened with rubbers[J].Polymer: The International Journal for the Science and Technology of Polymers,1999(9):2331-2346. |
| [3] | 范萍,徐闻,刘鹏波,罗利琴.γ射线辐照HDPE/微晶白云母填充体系力学性能的研究[J].高分子材料科学与工程,2002(03):89-93. |
| [4] | 钱家盛,杨海洋,何平笙.纳米SiO2颗粒对HDPE和PP非等温结晶行为的影响[J].高分子材料科学与工程,2004(06):161-164. |
| [5] | 丁运生,张志成.γ射线辐照法制备的聚醋酸乙烯酯/蒙脱土纳米复合材料与高密度聚乙烯共混物的研究[J].辐射研究与辐射工艺学报,2004(04):193-196. |
| [6] | Krzysztof Matyjaszewski;Jianhui Xia .Atom Transfer Radical Polymerization[J].Chemical Reviews,2001(9):2921-2990. |
| [7] | Timothy von Werne;Timothy E.Patten .Atom Transfer Radical Polymerization from Nanoparticles: A Tool for the Preparation of Well-Defined Hybrid Nanostructures and for Understanding the Chemistry of Controlled/"Living" Radical Polymerizations from Surfaces[J].Journal of the American Chemical Society,2001(31):7497-7505. |
| [8] | Tao Wu;Yanfeng Zhang;Xiaofeng Wang .Fabrication of Hybrid Silica Nanoparticles Densely Grafted with Thermoresponsive Poly(N-isopropylacrylamide) Brushes of Controlled Thickness via Surface-Initiated Atom Transfer Radical Polymerization[J].Chemistry of Materials: A Publication of the American Chemistry Society,2008(1):101-109. |
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