Browse Prior Art Database

Wear on Silicone Rubbers

IP.com Disclosure Number: IPCOM000079477D
Original Publication Date: 1973-Jul-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Santini, HA: AUTHOR

Abstract

This method allows the direct comparison of two elastomers, both at high temperatures, subjected to wear against a constantly renewable abrasion source. Specifically, there is provided a way of abrading heated thin films of silicone rubber and an apparatus to do so.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 1

Wear on Silicone Rubbers

This method allows the direct comparison of two elastomers, both at high temperatures, subjected to wear against a constantly renewable abrasion source. Specifically, there is provided a way of abrading heated thin films of silicone rubber and an apparatus to do so.

A feature of this apparatus provides infinite variation of the wear parameters especially temperature, surface speed, gap between surfaces under study and flow of the abradant. The apparatus consists of two, internally heated (450 degrees F max), copper rolls coated with the silicone elastomers (0.005 mil +/- 0.001 mil). These rolls are in contact at one end to provide the drive action and also to assure the same surface speed. Controlling the gap at the other end allows control of the wear intensity. Between the two rolls a constant stream of abradant particles (crushed quartz, sand, aluminum oxide, etc.) take care of the wear itself, grit size and abradant flow, being two of the parameters. As each roll sees the identical conditions, the depth of the wear tracks, measured by a microtopographer, is used to establish which material is the best wear resistant.

1