有机包覆对磁性聚乳酸复合材料力学和介电性能的影响

张晶; 于德梅; 陈炜

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有机包覆对磁性聚乳酸复合材料力学和介电性能的影响

更新时间：2025-07-09

- 有机包覆对磁性聚乳酸复合材料力学和介电性能的影响
- Effects of Organic Encapsulation on the Mechanical and Dielectric Properties of Magnetic Poly(Lactide Acid)Composites
- 西安交通大学学报 2009年43卷第12期页码：120-124
- 作者机构：
  
  西安交通大学理学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： R943.42
- 网络首发：2009-12-10，
  
  纸质出版：2009
- 稿件说明：
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张晶, 于德梅, 陈炜. 有机包覆对磁性聚乳酸复合材料力学和介电性能的影响[J]. 西安交通大学学报, 2009,43(12):120-124.

Effects of Organic Encapsulation on the Mechanical and Dielectric Properties of Magnetic Poly(Lactide Acid)Composites[J]. 2009, 43(12): 120-124.
张晶, 于德梅, 陈炜. 有机包覆对磁性聚乳酸复合材料力学和介电性能的影响[J]. 西安交通大学学报, 2009,43(12):120-124. DOI：

Effects of Organic Encapsulation on the Mechanical and Dielectric Properties of Magnetic Poly(Lactide Acid)Composites[J]. 2009, 43(12): 120-124. DOI：

摘要

合成了磁性纳米Fe

粒子

并通过有机包覆制备了磁性复合微球

进而分别以铁粒子和微球为填充相制备了两种磁性聚乳酸复合材料

研究比较了不同复合材料的力学性能、结晶性能及介电性能

探讨了有机包覆对复合材料微观相态及界面特征的影响.结果发现

有机包覆可提高无机铁粒子与聚合物基体的相容性

使得复合材料的韧性大幅提高

同时有机包覆使得无机粒子与聚乳酸分子之间存在强相互作用

从而减少了界面缺陷

改善了复合材料的介电性能.

Abstract

nanoparticles were prepared by co-precipitation

and the magnetic composite microspheres were synthesized with organic encapsulation. Then two kinds of poly(lactide acid)(PLA)composites

including PLA/Fe

and PLA/MMS composites

were prepared. The mechanical properties

crystallization process and dielectric properties of the two composites were investigated

and the effects of organic encapsulation on morphology and interface of the composites were discussed. The results indicate that organic encapsulation can significantly improve the compatibility of the inorganic Fe

particles and the polymer matrix

which lead to a great improvement for the toughness of the composite. And the strong interactions between polymer matrix and organic encapsulated Fe

reduce the interfacial defects and enhance the dielectric propert

ies.

关键词

Keywords

references

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