Accession Number : AD0860227

Title :   Review of Studies of the Radiation Modification of Elastomers,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH

Personal Author(s) : Achmatowicz, T. ; Smigasiewicz, Z. ; Zielinski, W.

Report Date : 22 JUL 1969

Pagination or Media Count : 21

Abstract : The influence of ionizing radiation on the vulcanization of natural rubber, latex, and sulfur vulcanates of butyl rubber as well as the role played by solid additives (oxides and halides of metals, and organic sensitizers) was investigated. Natural rubber with inorganic additives undergoes crosslinking under gamma radiation, and the rate of crosslinking increases with the atomic number of the metal with the exception of CuO and PbO. Chloroform was studied as an organic sensitizer, and this compound greatly accelerates the crosslinking process. Polyisobutylene and the vulcanates of butyl rubber undergo deep gradation under gamma radiation; however, the degradation products have valuable properties and may be used for production of sealing compositions. Radiation methods for reclamation of old motor tires and old butyl tubes were developed. (Author)

Descriptors :   *RADIATION CHEMISTRY), (*RUBBER, (*VULCANIZATION, RADIATION CHEMISTRY), (*TIRES, RECLAMATION), CROSSLINKING(CHEMISTRY), GAMMA RAYS, VULCANIZATES, ACETONITRILE, BUTYL RUBBER, POLAND.

Subject Categories : Radiation and Nuclear Chemistry
      Elastomers and Rubber

Distribution Statement : APPROVED FOR PUBLIC RELEASE