Characterization of reactively compatibilized poly(D,L-lactide)/poly(ε-caprolactone) biodegradable blends by essential work of fracture method

被引：51
作者：
Tuba, Ferenc [1 ]
Olah, Laszlo [2 ]
Nagy, Peter [1 ]
机构：
[1] Budapest Univ Technol & Econ, Fac Mech Engn, Dept Polymer Engn, H-1111 Budapest, Hungary
[2] Graz Univ Technol, Inst Chem & Technol Mat, A-8010 Graz, Austria
来源：
ENGINEERING FRACTURE MECHANICS | 2011年 / 78卷 / 17期
关键词：
Poly(epsilon-caprolactone) (PCL); Poly(D; L-lactide); Biomaterials; Blend; Essential work of fracture (EWF); Ductile fracture; MECHANICAL-PROPERTIES; POLYMER BLENDS; ACID)/POLY(EPSILON-CAPROLACTONE) BLENDS; CRYSTALLIZATION BEHAVIOR; POLY(LACTIC ACID); POLY(EPSILON-CAPROLACTONE); MORPHOLOGY; TOUGHNESS; STRESS; IMPROVEMENT;
D O I：
10.1016/j.engfracmech.2011.09.010
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In this work biodegradable blends of poly(D, L-lactide) and poly(epsilon-caprolactone) were studied. The weight fraction of poly(epsilon-caprolactone) was varied between 0 and 100%. The originally immiscible blends were compatibilized with L-lysine-diisocyanate and L-lysine-triisocyanate, respectively, to increase the fracture toughness of materials and maintain their biocompatibility. The blend morphology was characterized by scanning electron microscopy and differential scanning calorimetry. The fracture properties of blends were analyzed by the essential work of fracture method. (C) 2011 Elsevier Ltd. All rights reserved.
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收藏
页码：3123 / 3133
页数：11
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