CRYSTALLIZATION AND MECHANICAL PROPERTIES OF POLYPROPYLENE FILLED WITH SiO<sub>2</sub> NANOPARTICLES

申屠宝卿

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CRYSTALLIZATION AND MECHANICAL PROPERTIES OF POLYPROPYLENE FILLED WITH SiO₂ NANOPARTICLES

Papers | Updated：2021-06-21

- CRYSTALLIZATION AND MECHANICAL PROPERTIES OF POLYPROPYLENE FILLED WITH SiO₂ NANOPARTICLES
- CRYSTALLIZATION AND MECHANICAL PROPERTIES OF POLYPROPYLENE FILLED WITH SiO₂ NANOPARTICLES
- 高分子科学（英文版） 2007年第3期页码：227-233
- Affiliations：
  
  1.   State Key Laboratory of Chemical Engineering Zhejiang University
  2.   Hangzhou 310027
  3.   China
- Author bio：
- Funds：
  
  This work was supported by Scientific Research Foundation for the Returned Overseas Chinese Scholars,State Education Ministry （2004-176）.()
- DOI：
  中图分类号： TQ327.8
- 纸质出版：2007
- Accepted：
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[1]申屠宝卿.CRYSTALLIZATION AND MECHANICAL PROPERTIES OF POLYPROPYLENE FILLED WITH SiO_2 NANOPARTICLES[J].Chinese Journal of Polymer Science,2007(03):227-233.

CRYSTALLIZATION AND MECHANICAL PROPERTIES OF POLYPROPYLENE FILLED WITH SiO₂ NANOPARTICLES[J]. 2007, (3): 227-233.
[1]申屠宝卿.CRYSTALLIZATION AND MECHANICAL PROPERTIES OF POLYPROPYLENE FILLED WITH SiO_2 NANOPARTICLES[J].Chinese Journal of Polymer Science,2007(03):227-233. DOI：

CRYSTALLIZATION AND MECHANICAL PROPERTIES OF POLYPROPYLENE FILLED WITH SiO₂ NANOPARTICLES[J]. 2007, (3): 227-233. DOI：

摘要

<正>Oleic acid （OA）-modified SiO2 （OA-m-SiO2） nanoparticles were prepared using surface modification method. Infrared spectroscopy （IR） was used to investigate the structure of the OA-m-SiO2 nanoparticles

and the result showed that OA attached onto the surface of SiO2 nanoparticles through esterification. Effect of OA concentration on the dispersion stability of OA-m-SiO2 in heptane was also studied

and the result indicated that OA-m-SiO2 nanoparticles were dispersed in heptane more stably than the unmodified ones. OA-m-SiO2 nanoparticles can also be dispersed in polypropylene （PP） matrix in nano-scale. The effect of OA-m-SiO2 on crystallization of PP was studied by means of DSC. It was found that the introduction of OA-m-SiO2 resulted in significant increase in the crystallization temperature

crystallization degree and crystallization rate of PP

and OA-m-SiO2 could effectively induce the formation ofβ-crystal PP. Effect of OA-m-SiO2 content on mechanical properties of PP/OA-m-SiO2 nanocomposites was also studied. The results show that OA-m-SiO2 can significantly improve the mechanical properties of PP.

Abstract

Oleic acid （OA）-modified SiO2 （OA-m-SiO2） nanoparticles were prepared using surface modification method. Infrared spectroscopy （IR） was used to investigate the structure of the OA-m-SiO2 nanoparticles

and the result showed that OA attached onto the surface of SiO2 nanoparticles through esterification. Effect of OA concentration on the dispersion stability of OA-m-SiO2 in heptane was also studied

crystallization degree and crystallization rate of PP

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CRYSTALLIZATION AND MECHANICAL PROPERTIES OF POLYPROPYLENE FILLED WITH SiO2 NANOPARTICLES

CRYSTALLIZATION AND MECHANICAL PROPERTIES OF POLYPROPYLENE FILLED WITH SiO2 NANOPARTICLES

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CRYSTALLIZATION AND MECHANICAL PROPERTIES OF POLYPROPYLENE FILLED WITH SiO₂ NANOPARTICLES

CRYSTALLIZATION AND MECHANICAL PROPERTIES OF POLYPROPYLENE FILLED WITH SiO₂ NANOPARTICLES