| ATRP法在纳米SiO2表面接枝PS及其对HDPE的改性 |
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| 引用本文： | 唐龙祥,范保林,刘春华,张奎,王平华.ATRP法在纳米SiO2表面接枝PS及其对HDPE的改性[J].高分子材料科学与工程,2011(5):21-24. |
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| 作者姓名： | 唐龙祥 范保林 刘春华 张奎 王平华 |
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| 作者单位： | 合肥工业大学化工学院 |
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| 基金项目： | 国家自然科学基金资助项目(50573016);安徽省高等学校青年教师资助计划项目(2006jq1007) |
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| 摘 要： | 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<,...
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| 关 键 词： | 原子转移自由基聚合 表面接枝 纳米SiO2 纳米SiO2-g-PS复合粒子 高密度聚乙烯 力学性能 |
Grafting PS onto Surfaces of Nano-Silica via ATRP Reaction & Modification of HDPE |
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| Longxiang Tang,Baolin Fan,Chunhua Liu,Kui Zhang,Pinghua Wang.Grafting PS onto Surfaces of Nano-Silica via ATRP Reaction & Modification of HDPE[J].Polymer Materials Science & Engineering,2011(5):21-24. |
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| Authors: | Longxiang Tang Baolin Fan Chunhua Liu Kui Zhang Pinghua Wang |
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| Affiliation: | School of Chemical and Engineering,Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | Poly(styrene)(PS) was grafted onto the surfaces of nano-silica(SiO2) via surface-initiated atom transfer radical polymerization(ATRP),and the modification of high density polyethylene(HDPE) with nano SiO2-g-PS composited particles was studied.The results of Fourier transform infrared spectra(FTIR),transmission electron microscope(TEM),scanning electron microscope(SEM),and mechanical property measurements show that nano SiO2-g-PS composited particles are more easily dispersed in the matrix than bare nano-SiO2.Consequently,the notched impact strength and tensile strength of HDPE/SiO2-g-PS composites are superior to those of pure HDPE and HDPE/SiO2 composites.With the help of compatilizer(SEBS),nano SiO2-g-PS composited particles are dispersed in the matrix more uniformly,and the mechanical properties of composites are improved greatly. |
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| Keywords: | atom transfer radical polymerization surface grafting nano silica nano SiO2-g-PS composited particles high density polyethylene mechanical properties |
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