Accession Number:

AD0705691

Title:

THE EFFECT OF GAMMA-RADIATION ON SOME PAPER PROPERTIES,

Descriptive Note:

Corporate Author:

SVENSKA TRAFORSKNINGSINSTITUTET STOCKHOLM

Report Date:

1968-10-28

Pagination or Media Count:

7.0

Abstract:

The effect of gamma-radiation 60Co on certain properties of sheets made from bleached and unbleached sulphate pulp has been studied. Properties examined included tensile and elongation behaviour, burst and tear factors, brightness and water absorption Cobb. As far as the mechanical properties and the brightness were concerned no changes were noted with doses up to ca. 10 to the 6th rad. Further irradiation led to a marked deterioration both in strength and in brightness. In the presence of hydrazine, a radical scavenger, the critical radiation dose could be increased. For rosin sized paper a minimum in the Cobb water absorption value was observed at ca 10,000 rad. In contrast to the mechanical and other properties the DP decreased with increasing radiation dose over the whole of the range studied. Author

Subject Categories:

  • Radiation and Nuclear Chemistry
  • Wood, Paper and Related Forestry Products

Distribution Statement:

APPROVED FOR PUBLIC RELEASE