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聚硅氧烷/聚己内酯/环氧树脂复合体系的制备及性能

赫丽华 刘平桂 丁鹤雁

材料工程Issue(11):34-37,71,5.
材料工程Issue(11):34-37,71,5.

聚硅氧烷/聚己内酯/环氧树脂复合体系的制备及性能

Preparation and Properties of Polydimethysiloxane/Polycaprolactone/Epoxy Resin Composites

赫丽华 1刘平桂 1丁鹤雁1

作者信息

  • 1. 北京航空材料研究院,北京100095
  • 折叠

摘要

Abstract

A series of resin composites were prepared by blending epoxy and Silyl-terminated polypro-lactone/polydimethysiloxane (PCL-TESi/PDMS-TESi). The morphology and the surface element of composites system were investigated by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy. Mechanical properties, water-resistance properties and thermal properties of the composites were also studied. The results showed that the morphologies, mechanical properties, water resistance properties and thermal properties of the composites were quite dependent on the content of PCL-TESi/PDMS-TESi. The Si element migrated toward surface to some extent. When mass ratio of PCL-TESi/PDMS-TESi and epoxy was 5 : 5, the mass change of composite is below 1% after soaked in distilled water at 50°C for 7 days, the elongation rate at break increased from 0% to 27% while tensile strength remain 23MPa, and in thermogravimetry analysis (TGA) , the characteristic decomposition temperature at 5% mass loss was evidently increased from 155. 8°C of pure epoxy to 310. 2℃.

关键词

端硅氧烷基聚己内酯/聚硅氧烷/环氧树脂/力学性能/耐热性/耐水性

Key words

silyl-terminated polyprolactone/polydimethysiloxane/ epoxy resin/ mechanical property/ thermal properties/water-resistance property

分类

通用工业技术

引用本文复制引用

赫丽华,刘平桂,丁鹤雁..聚硅氧烷/聚己内酯/环氧树脂复合体系的制备及性能[J].材料工程,2012,(11):34-37,71,5.

材料工程

OA北大核心CSCDCSTPCD

1001-4381

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