HIGH TEMPERATURE RESISTANT TRANSPARENT PLASTICS
Abstract
Cast resins obtained from hexahydrophthalic anhydride and vinylcyclohexene dioxide were found to be extremely notch sensitive and brittle. Although the ultimate flexural strength of the resin was high (15,000 psi at 75 F), the ultimate tensile strength was low (2,800). Good agreement of tensile and flexural modulus 75 to 400 F was obtained. The UV light stability of 5 epoxide resins and polymethylmethacrylate were compared; all epoxide resins were inferior to the acrylics. Trimethoxyboroxine (TMB) cured diglycidyl ether (DEBA) of bisphenol A proved to be superior in abrasion resistance. Hot stretched acrylic and polymethylmethacrylate were about equal in resistance to the TMB cured DEBA. Synthesis of the bisbicyclo(2.2.2)octane diepoxides was continued. The thermal rigidity of resins obtained from maleic anhydride and the bisbicyclo carbonate diepoxide were evaluated by the Vicat penetration technique. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 25, 1961
- Accession Number
- AD0264659
Entities
People
- Howard Christie
- Thomas Medved
Organizations
- MRIGlobal