Effects of interphase and fibre content on the mechanical behavior of weft-knitted glass fibre reinforced polypropylene

Research output: Article

4 Citations (Scopus)

Abstract

The mechanical performance of weft knitted glass fiber (GF) fabric-reinforced polypropylene (PP) composite sheets produced by hot pressing of stacked knit layers was investigated. The knits were built-up of commingled yarns showing extremely different fibre/matrix adhesion. The GF content of the commingled yarns was 50 (≈ 26 vol.%) and 70 wt.% (≈45 vol.%), respectively. The effects of fibre/matrix adhesion and fibre content were characterized by dynamic-mechanical thermoanalysis (DMTA), static tensile and flexural tests in both course (C) and wale (W) direction of the knit. In addition, the sheets were subjected to instrumented falling weight perforation impact (IFWI). It was found that the knit structure-related stiffness anisotropy depended on the loading mode of the composites. The detrimental effect of the poor adhesion between GF and PP was well reflected in all mechanical tests conducted.

Original languageEnglish
Pages (from-to)31-36
Number of pages6
JournalAdvanced Composites Letters
Volume6
Issue number2
Publication statusPublished - 1997

Fingerprint

Polypropylenes
Glass fibers
Adhesion
Yarn
Fibers
Composite materials
Hot pressing
Thermoanalysis
Anisotropy
Stiffness
fiberglass

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

@article{48e8cc19696c4a3baa79046b8cb78085,
title = "Effects of interphase and fibre content on the mechanical behavior of weft-knitted glass fibre reinforced polypropylene",
abstract = "The mechanical performance of weft knitted glass fiber (GF) fabric-reinforced polypropylene (PP) composite sheets produced by hot pressing of stacked knit layers was investigated. The knits were built-up of commingled yarns showing extremely different fibre/matrix adhesion. The GF content of the commingled yarns was 50 (≈ 26 vol.{\%}) and 70 wt.{\%} (≈45 vol.{\%}), respectively. The effects of fibre/matrix adhesion and fibre content were characterized by dynamic-mechanical thermoanalysis (DMTA), static tensile and flexural tests in both course (C) and wale (W) direction of the knit. In addition, the sheets were subjected to instrumented falling weight perforation impact (IFWI). It was found that the knit structure-related stiffness anisotropy depended on the loading mode of the composites. The detrimental effect of the poor adhesion between GF and PP was well reflected in all mechanical tests conducted.",
keywords = "Commingled yarn, Dynamic-mechanical thermal analysis (DMTA), Interface, Knitted fabric-reinforced, Perforation impact, Polypropylene (PP), Stiffness anisotropy, Strength anisotropy",
author = "J. Karger-Kocsis and E. Moos and T. Czig{\'a}ny",
year = "1997",
language = "English",
volume = "6",
pages = "31--36",
journal = "Advanced Composites Letters",
issn = "0963-6935",
publisher = "Adcotec Ltd.",
number = "2",

}

TY - JOUR

T1 - Effects of interphase and fibre content on the mechanical behavior of weft-knitted glass fibre reinforced polypropylene

AU - Karger-Kocsis, J.

AU - Moos, E.

AU - Czigány, T.

PY - 1997

Y1 - 1997

N2 - The mechanical performance of weft knitted glass fiber (GF) fabric-reinforced polypropylene (PP) composite sheets produced by hot pressing of stacked knit layers was investigated. The knits were built-up of commingled yarns showing extremely different fibre/matrix adhesion. The GF content of the commingled yarns was 50 (≈ 26 vol.%) and 70 wt.% (≈45 vol.%), respectively. The effects of fibre/matrix adhesion and fibre content were characterized by dynamic-mechanical thermoanalysis (DMTA), static tensile and flexural tests in both course (C) and wale (W) direction of the knit. In addition, the sheets were subjected to instrumented falling weight perforation impact (IFWI). It was found that the knit structure-related stiffness anisotropy depended on the loading mode of the composites. The detrimental effect of the poor adhesion between GF and PP was well reflected in all mechanical tests conducted.

AB - The mechanical performance of weft knitted glass fiber (GF) fabric-reinforced polypropylene (PP) composite sheets produced by hot pressing of stacked knit layers was investigated. The knits were built-up of commingled yarns showing extremely different fibre/matrix adhesion. The GF content of the commingled yarns was 50 (≈ 26 vol.%) and 70 wt.% (≈45 vol.%), respectively. The effects of fibre/matrix adhesion and fibre content were characterized by dynamic-mechanical thermoanalysis (DMTA), static tensile and flexural tests in both course (C) and wale (W) direction of the knit. In addition, the sheets were subjected to instrumented falling weight perforation impact (IFWI). It was found that the knit structure-related stiffness anisotropy depended on the loading mode of the composites. The detrimental effect of the poor adhesion between GF and PP was well reflected in all mechanical tests conducted.

KW - Commingled yarn

KW - Dynamic-mechanical thermal analysis (DMTA)

KW - Interface

KW - Knitted fabric-reinforced

KW - Perforation impact

KW - Polypropylene (PP)

KW - Stiffness anisotropy

KW - Strength anisotropy

UR - http://www.scopus.com/inward/record.url?scp=0031286492&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031286492&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0031286492

VL - 6

SP - 31

EP - 36

JO - Advanced Composites Letters

JF - Advanced Composites Letters

SN - 0963-6935

IS - 2

ER -