Accession Number : AD0810034

Title :   THE DEVELOPMENT OF HEAT SEALABLE COATED FABRICS FOR ARMY WEAPONS APPLICATIONS.

Descriptive Note : Technical rept.,

Corporate Author : ARMY WEAPONS COMMAND ROCK ISLAND IL RESEARCH DEVELOPMENT AND ENGINEERING DIRE CTORATE

Personal Author(s) : Saunders, Allan C.

Report Date : JAN 1967

Pagination or Media Count : 38

Abstract : For many years the Army has experienced problems in low temperature flexibility, environmental stability and moisture which penetrated needle holes left in coated fabrics resulting from sewing. Several methods to overcome the problem of needle holes were used. These added costs and time delays prompted a new look at the development of an improved coated fabric. A research study was initiated wherein 28 varieties of commercially available coated fabrics, 3 substrates (one glass cloth and two varieties of nylon), 8 tie-coatings and 21 polymer coatings were investigated for the purpose of obtaining an improved coated fabric. As a result of these development and evaluation studies, it was found that a dimethyl sulfoxide treatment on an open mesh nylon substrate which was then coated with polyethylene/vinyl acetate produces an acceptable heat sealable all weather coated fabric. The dimethyl sulfoxide and/or dimethyl formamide pretreated substrate showed an improvement of 20F in low temperature flexibility over an untreated substrate. DuPont's 60-002 urethane (ether) polymer compound applied at Rock Island Arsenal to an open mesh nylon, and Reeves Bros. Inc., Style 15187, urethane (ether) coated on a standard weave dacron substrate exhibited favorable properties in regard to fuel resistance and heat sealability. (Author)

Descriptors :   *TEXTILES), (*PLASTIC COATINGS, (*PROTECTIVE COVERINGS, WEAPONS), SULFOXIDES, MECHANICAL PROPERTIES, ENVIRONMENTAL TESTS, STABILITY, MOISTUREPROOFING, PENETRATION, ORGANIC COATINGS, NYLON, SUBSTRATES, SEALING COMPOUNDS, ADHESIVES, POLYETHYLENE PLASTICS, VINYL PLASTICS, ACETATES, PLASTIC SEALS, THERMAL JOINING.

Subject Categories : Coatings, Colorants and Finishes
      Textiles

Distribution Statement : APPROVED FOR PUBLIC RELEASE