Mechanical and viscoelastic properties of novel silk fibroin fiber/poly(Ε-caprolactone) biocomposites

被引：0
|
作者：
Li, Wei [1 ]
Qiao, Xiuying [1 ]
Sun, Kang [1 ]
Chen, Xiaodong [2 ]
机构：
[1] State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
[2] Shanghai Sunny New Technology Development Company, Limited, Shanghai 201108, China
来源：
Journal of Applied Polymer Science | 2008年 / 110卷 / 01期
关键词：
Silk-fibroin (SF)-fiber-reinforced poly(Ε-caprolactone) (PCL) biocomposites with different fiber contents were fabricated by a melt-blending method. The mechanical and viscoelastic properties of these SF/PCL composites were investigated by mechanical property testing; dynamic mechanical thermal analysis; and dynamic rheological analysis. The mechanical properties of PCL were obviously reinforced by fiber addition; and the maximum tensile and flexural strengths appeared at fiber contents of 35 and 45%; respectively. As the fiber content increased; both the storage modulus and loss modulus increased; whereas the glass-transition temperature of the PCL component decreased. The appearance of a storage modulus plateau indicated the formation of reinforcement network structures in the SF/ PCL composites; which enhanced the elasticity and viscosity of the composites. The interfacial interaction between the fiber and PCL matrix was not very strong. © 2008 Wiley Periodicals; Inc;
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页码：134 / 139
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