SOME WEATHERING CHARACTERISTICS OF PLASTICS

OUTDOOR AGING OF PLASTICS IS LARGELY A PHOTO-OXIDATION PROCESS LEADING ULTIMATELY TO DISCOLORATION AND LOSS IN DIELECTRIC AND MECHANICAL STRENGTH. SOME OF THE WEATHERING CHARACTERISTICS OF PLASTICS ARE DISCUSSED SUCH AS EMBRITTLEMENT, DIELECTRIC LOSS, DISCOLORATION, PHOTO STABILITY AND OXIDATIVE DEGRADATION. ALTHOUGH WEATHERING RESISTANCE PARTLY DEPENDS ON THE EXTENT TO WHICH ULTRAVIOLET RADIATION IS ABSORBED AND HARMLESSLY DISSIPATED, CHANNEL BLACKS PROVIDE MORE PROTECTION FOR POLYMERS THAN THE ULTRAVIOLET ABSORBERS. POLYMETHYL METHACRYLATE AND THE FLUORINE-CONTAINING POLYMERS HAVE OUTSTANDING OUTDOOR DURABILITY.

• Supplemental Notes:
  • Vol 44, No 8, PP 141-142, 2 FIG
• Authors:
  • Winslow, F H
  • Hawkins, W L
• Publication Date: 1967-4

Media Info

• Serial:
  • Modern Plastics
  • Publisher: McGraw-Hill, Incorporated

Subject/Index Terms

• TRT Terms: Absorption; Carbon black; Color; Dielectric properties; Mechanical properties; Oxidation; Plastics; Polymers; Ultraviolet radiation; Weathering
• Uncontrolled Terms: Characteristics; Discoloration
• Old TRIS Terms: Dielectric strength
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00216186
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 27 1994 12:00AM