VARIATION OF WATER-VAPOR RESISTANCE OF MICROPOROUS AND HYDROPHILIC FILMS WITH RELATIVE-HUMIDITY

被引：40

作者：

FARNWORTH, B

LOTENS, WA

WITTGEN, PPMM

机构：

[1] TNO,PRINS MAURITS LAB,2280 AA RIJSWIJK,NETHERLANDS

[2] TNO,INST PERCEPT,3769 ZG SOESTERBERG,NETHERLANDS

来源：

TEXTILE RESEARCH JOURNAL | 1990年 / 60卷 / 01期

关键词：

Hydrophilic Films - Microporous Films - Relative Humidity (RH) - Water Vapor Resistance - Waterproof Vapor Permeable Fabrics;

D O I：

10.1177/004051759006000107

中图分类号：

TB3 [工程材料学]; TS1 [纺织工业、染整工业];

学科分类号：

0805 ; 080502 ; 0821 ;

摘要：

A method is described for measuring the water vapor resistance of textiles under variable conditions of relative humidity (RH). It consists basically of varying the position of the sample in an air gap between a wet and a dry surface while keeping all other conditions constant. The resistance is determined by the rate of water loss from the apparatus and the temperature of the water. The results for microporous PTFE and polyurethane films show little variation with RH, but fabrics and films with hydrophilic coatings added show strong variations, the resistance increasing substan tially with decreasing RH. © 1990, Sage Publications. All rights reserved.

引用

页码：50 / 53

页数：4

共 9 条

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