Accession Number : AD0662747

Title :   EFFECT OF RELATIVE HUMIDITY ON ADHESIVE BONDING TO ALUMINUM ALLOY.

Descriptive Note : Technical memo.,

Corporate Author : PICATINNY ARSENAL DOVER N J FELTMAN RESEARCH LABS

Personal Author(s) : Barbarisi,Modesto ; Hall,J. Richard

Report Date : DEC 1967

Pagination or Media Count : 19

Abstract : Observations indicate that at low relative humidity a contact angle of about 5 degrees can be obtained for water on prepared aluminum. The same surface exposed to 100% relative humidity exhibits poor water wettability. The situation is reversed for a polyamide-epoxy adhesive. Wetting was improved under conditions of high rather than low relative humidity. Consistent with this adhesive's wetting behavior, adhesive joints prepared with it under high relative humidity conditions were stronger than those produced under dry conditions. (Author)

Descriptors :   (*BONDING, HUMIDITY), (*ALUMINUM ALLOYS, BONDED JOINTS), ADHESIVES, POLYAMIDE PLASTICS, EPOXY RESINS, WETTING

Subject Categories : Adhesives, Seals and Binders
      Fabrication Metallurgy
      Plastics
      Couplers, Fasteners, and Joints

Distribution Statement : APPROVED FOR PUBLIC RELEASE