Back SearchTitle: POLYETHYLENE-KEVLAR COMPOSITE FOAMS II: MECHANICAL PROPERTIES
Page Range: p.61-76
Author(s): Zhang Y; Rodrigue D; Ait-Kadi A
File size: 113K
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Issue Year: cp
Volume: 23
Issue No: No. 2
Abstract
The mechanical properties of polyethylene-Kevlar composite foams prepared by polymerisation-compounding (PFC) and melt blending (MBC), were investigated by tensile measurements and stress-strain curves. The effects of various fibre contents on the mechanical properties of the PFC and MBC foams, and the use of various models to predict the tensile modulus based on various parameters such as foam morphology, fibre and matrix properties, are discussed. 53 refs.
Title: CHARACTERISATION OF PLASTIC FOAMS USED AS BACKER ROD IN THE CONSTRUCTION INDUSTRY
Page Range: p.77-107
Author(s): Iglauer S; Hutchinson A R; Lee T C P
File size: 218K
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Issue Year: cp
Volume: 23
Issue No: No. 2
Abstract
The mechanical (foam density, water absorption, hardness, stress-strain and tensile properties), morphological (cell structure by optical microscopy, surface roughness by profilometry) and surface chemistry (surface free energy by contact angle measurement, FTIR, XPS) properties of commercially available closed cell polyethylene foams and open cell polyurethane foams used in the construction industry were investigated. The performance of the foams is compared. 18 refs.
Title: EVALUATION OF HFC-245fa AS AN ALTERNATIVE BLOWING AGENT FOR EXTRUDED LOW-DENSITY POLYETHYLENE
Page Range: p.109-121
Author(s): Vachon C
File size: 88K
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Issue Year: cp
Volume: 23
Issue No: No. 2
Abstract
The use of HFC-245fa as blowing agent in low-density polyethylene for foam extrusion was investigated using ultrasonic monitoring to assess the solubility of the gas, and the results compared to those obtained using polystyrene and for HCFC-22. The results of foam extrusion at various gas concentrations with and without the use of a nucleating agent are discussed. 11 refs.