The mechanical properties of oxyfluorinated hybrids of glass fibre and polypropylene fibre

被引:2
作者
Reid, RG [1 ]
I'Ons, TA [1 ]
Paskaramoorthy, R [1 ]
机构
[1] Univ Witwatersrand, RPI Composites Facil, Sch Mech Ind & Aeronaut Engn, ZA-2050 Wits, South Africa
关键词
hybrid; glass fibres; polypropylene fibres; mechanical properties;
D O I
10.1016/j.compstruct.2004.05.009
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
The mechanical properties of a low-cost system comprising orthophthalic polyester resin reinforced with hybrids of glass and polypropylene fibres were investigated. The fibres were oxyfluorinated to overcome the poor surface adhesion properties of polypropylene. Interlaminar shear tests, lzod-type impact tests and tensile tests were considered. lt would be expected that increasing polypropylene fibre content corresponds with a decrease in mechanical properties due to the poor properties of polypropylene. Oxyfluorinated laminates containing approximately 25% and 50% polypropylene in the warp direction were, however, found to exhibit significant improvements in interlaminar shear strength, in peak shear stress under impact loading as well as in impact resistance over untreated glass fibre laminates. Scanning electron microscope images show that the reason for this improvement is that the interfacial bond between the polypropylene fibres and the resin is strengthened to such an extent that failure occurs within the polypropylene fibres rather than at the interface. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:611 / 616
页数:6
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