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The effect of radiation on the melt index of polyethylene
Author(s) -
Harper B. G.
Publication year - 1959
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1959.070020620
Subject(s) - polyethylene , radiation , materials science , irradiation , dosimetry , ionizing radiation , cellophane , absorbed dose , radiation dose , radiation effect , composite material , radiant intensity , optics , nuclear medicine , nuclear physics , physics , medicine
Five different types of polyethylene were irradiated in air and their melt indices determined as a function of the radiation dose. A resonant transformer electron beam generator was the source of radiation, and cellophane dye dosimetry was used to determine the radiation dose. The melt index was found to change uniformly with dose, and a single empirical equation was derived which describes the curves for all five types of polyethylene. By using the melt index as a measure of crosslinking, it was shown that the effect of radiation intensity on crosslinking is negligible.