Toughening of glass fiber reinforced composites with a cyclic butylene terephthalate matrix by addition of polycaprolactone

被引：35

作者：

Baets, J. ^{[1
]}

Dutoit, M. ^{[1
]}

Devaux, J. ^{[2
]}

Verpoest, I. ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Dept Met & Mat Engn, B-3001 Louvain, Belgium

[2] Catholic Univ Louvain, Unite Chim & Phys Hauts Polymeres, B-1348 Louvain, Belgium

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2008年 / 39卷 / 01期

关键词：

mechanical properties; thermoplastic resin;

D O I：

10.1016/j.compositesa.2007.09.013

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The problem of high melt viscosity of thermoplastics can be solved by using cyclic butylene terephthalate (CBT), a low viscous prepolymer that polymerizes to the thermoplastic polybutyleneterephthalate (PBT). If CBT polymerizes isothermally, big perfect crystals can grow, which induces brittleness. To solve this problem, CBT is mixed with polycaprolactone (PCL). CBT and PCL will form a copolymer, which leads to a much tougher material, both for unfilled material and for composites. The samples are tested under tensile, bending and impact loading. The increased toughness is due to the lower crystallinity, induced by the copolymerization, which is assessed by a DSC-test. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：13 / 18

页数：6

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