Poly (ε-caprolactone)/hydroxyapatite composites:: effects of particle size, molecular weight distribution and irradiation on interfacial interaction and properties

被引：59

作者：

Chen, BQ ^{[1
]}

Sun, K ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Inst Composites, Shanghai 200030, Peoples R China

来源：

POLYMER TESTING | 2005年 / 24卷 / 01期

关键词：

poly(epsilon-caprolactone); hydroxyapatite; interfacial interaction; mechanical property; viscoelasticity;

D O I：

10.1016/j.polymertesting.2004.07.010

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Hydroxyapatite reinforced poly(epsilon-caprolactone) composites with different particle sizes and molecular weight distributions were prepared using a simple melt-processing method. Some composites were modified by electron beam irradiation. Dynamic viscoelastic properties were investigated using dynamic mechanical thermal analysis (DMTA) and an advanced rheometric expansion system. The results showed that the composite with narrower molecular weight distribution and smaller particle sizes had better processing and mechanical properties. Correspondingly, its interfacial interaction determined from differential scanning calorimetry, together with DMTA, was also stronger. Irradiation seriously damaged the adhesive interaction between the two phases, as observed under a scanning electron microscope, thus deteriorating the properties. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：64 / 70

页数：7

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