Studies on thermalplastic ultra high molecular weight polyethylene fiber composites
Date Issued
2005
Date
2005
Author(s)
Lee, Nan-Chang
DOI
zh-TW
Abstract
The aim of this Research is to prepare the LDPE (low density polyethylene), PU (polyurethane) and UHMWPE fiber composites for improving the mechanical properties of the LDPE/UHMWPE fiber and PU/UHMWPE fiber composites. In the matrix, several types of LDPE and PU are employed to improve the adhesion between the UHMWPE fiber and the matrix.
The LDPE/UHMWPE fiber composites and PU/ UHMWPE fiber composites were prepared by filament winding. The types of impregnation were used in different resin types included solution impregnation and bulk impregnation. Fiber weight content could be calculated by TGA analysis, DSC analysis, and solvent etching. The fiber weight content of the composite is more than 50%. The tensile strength could achieve 598MPa. Crack initiation energy, crack propagation energy, and ductility index (D.I=Ep/Ei) of PU/UHMWPE fiber composites could be obtained by falling weight impact test.
The thermal properties, mechanical properties, and morphology of the different composites were investigated through the TGA measurement and DSC measurement , Tensile strength test ,Falling weight impact test and the scanning electron microscope(SEM), respectively.
Keywords：UHMWPE fiber, LDPE, PU, fiber weight content, falling weight test, and mechanical properties
Subjects
低密度聚乙烯
聚胺基甲酸酯
纖維重量分率
機械性質
UHMWPE fiber
LDPE
PU
fiber weight content
falling weight test
and mechanical properties
Type
thesis
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