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Effect of silane and peroxide concentration on grafting behaviour of high-density polyethylene

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posted on 2018-10-09, 14:09 authored by Gulshan S. Ahmed
Silane-crosslinked polyethylene was introduced for wire and cable insulations, and is now used extensively for the manufacture of domestic hot and cold water pipe systems. Silane crosslinking of polyethylene is a two stage processes, the first stage is the grafting of organosilane molecules onto polyethylene, and the second stage involves crosslinking through the alkoxysilane (Si-OCH3) groups to form siloxane (Si-O-Si) linkages. It is the grafting stage that influences the materials behaviour and therefore properties and performance of the crosslinked product. ISOPLAS crosslinkable polyethylene manufactured at Micropol Ltd has shown slight variations in measurable properties amongst materials processed in the extruders, which are determined using quality control tests in order to give a rough guide to the processability. Therefore, a detailed study was carried out to gain a better understanding of processing and structure-property relationships of the material. [Continues.]

Funding

Micropol Ltd.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Materials

Publisher

© G.S. Ahmed

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2007

Notes

A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.

Language

  • en

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