SiO<sub>2</sub>-g-PS纳米微球的制备及其在增韧PP中的应用

WANG Dongbo; TIAN Yan; FENG Yujie; HAN Liwei

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SiO₂-g-PS纳米微球的制备及其在增韧PP中的应用

更新时间：2025-12-10

- SiO₂-g-PS纳米微球的制备及其在增韧PP中的应用
- CIESC Journal Issue 12, (2007)
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- Online First：05 December 2007，
  
  Published：05 December 2007
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WANG Dongbo, TIAN Yan, FENG Yujie, et al. SiO₂-g-PS纳米微球的制备及其在增韧PP中的应用[J]. CIESC Journal, 2007, (12).
DOI：

WANG Dongbo, TIAN Yan, FENG Yujie, et al. SiO₂-g-PS纳米微球的制备及其在增韧PP中的应用[J]. CIESC Journal, 2007, (12). DOI：

摘要

采用乳液聚合方法在纳米SiO2粒子表面接枝苯乙烯（St）单体，制备了具有核/壳结构的SiO2-g-PS纳米微球，用FTIR、TEM、XPS和TG分析了SiO2-g-PS的结构。结果表明，乳液聚合产物基本呈球形、SiO2为核、PS为壳的核壳结构。通过熔融共混工艺制备聚丙烯（PP）基复合材料，并对其力学性能进行了分析，结果表明，当SiO2-g-PS填充量较低［4%～6％（质量）］时，SiO2-g-PS/PP复合材料的冲击强度和拉伸强度明显提高，并对PP的结晶有明显的异相成核作用。

Abstract

SiO2-g-PS

nano-microspheres，were prepared by grafted styrene monomer on the surface of nano-SiO2 particles with the emulsion polymerization method

and its surface and morphology were studied by TEM

FTIR

TG and XPS. The results showed that the SiO2-g-PS nano-microsphere had a structure of sphericity composed of PS and SiO2 as core and shell respectively. A composite material of SiO2-g-PS nano-microsphere and polypropylene (PP) was prepared by the melt-blending process and the mechanical performance was investigated. The results showed that the impact and tensile strength of the composite material could be improved obviously when the loading of SiO2-g-PS nano-microsphere was as low as 4%—6%(mass)

and a significant heterogeneous nucleation effect on the crystallization of PP was observed.

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SiO2-g-PS纳米微球的制备及其在增韧PP中的应用

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SiO₂-g-PS纳米微球的制备及其在增韧PP中的应用