Accession Number : AD0731188
Title : Development of Elastomers Having Low Water-Vapor Transmission Rate.
Descriptive Note : Technical rept.,
Corporate Author : ARMY WEAPONS COMMAND ROCK ISLAND ILL RESEARCH DEVELOPMENT AND ENGINEERING DIRECTORATE
Personal Author(s) : Williams,John A.
Report Date : AUG 1971
Pagination or Media Count : 21
Abstract : The effect of various types of fillers on the water vapor transmission rate (WVTR) of vulcanizates of EPR was determined. Carbon black and most nonblack fillers produced only a small reduction in the WVTR, whereas platelike mica fillers produced significant reductions. High-density polyethylene reduced the WVTR, but physical properties were adversely effected. EPR/butyl rubber blends containing 50 pphr of carbon black produced vulcanizates with good physical properties and low permeability to moisture. (Author, modified-PL)
Descriptors : (*ELASTOMERS, PERMEABILITY), (*SYNTHETIC RUBBER, PERMEABILITY), (*VULCANIZATES, PERMEABILITY), BUTYL RUBBER, COMPOSITE MATERIALS, WATER VAPOR, CARBON BLACK, MOISTURE, MICA
Subject Categories : Elastomers and Rubber
Distribution Statement : APPROVED FOR PUBLIC RELEASE