Accession Number : AD0877236

Title :   Resistance of Plastics to Outdoor Weathering.

Descriptive Note : Technical rept.,

Corporate Author : PICATINNY ARSENAL DOVER NJ

Personal Author(s) : Readdy, A. F. ; Bonk, R. B.

Report Date : NOV 1970

Pagination or Media Count : 53

Abstract : This report presents stress-strain diagrams showing the tensile strength - elongation properties of 12 plastic materials before exposure, after being stored for three years in the dark under standard laboratory conditions, and after outdoor exposures of three years. The outdoor sites were: Picatinny Arsenal (temperare); Canal Zone (hot/wet open site and hot/wet forest site); Australia (hot/wet open site and hot/dry open site); and White Sands (hot/dry open site). The 12 materials include polycarbonate, acetal copolymer, polyvinyl fluoride film, and aliphatic carbonate, an ionomer, polyphenylene oxide, epoxy-acrylate and polycyclamide. The acetal copolymer, polyphenylene oxide, the epoxy- acrylate and polycyclamide show well-defined losses in physical characteristics in all or some of the six sites. (Author, modified-PL)

Descriptors :   (*PLASTICS, ENVIRONMENTAL TESTS), AGING(MATERIALS), ACETAL RESINS, VINYL PLASTICS, CARBONATES, FLUORIDES, EPOXY RESINS, POLYAMIDE PLASTICS, DESERT TESTS, TROPICAL TESTS, TEST METHODS.

Subject Categories : Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE