Abstract

Graft polymerization of acrylic acid onto nonwoven polypropylene (PP) fabric was carried out by a preirradiation
method using a 60Co gamma radiation source. Results showed that 2.2'-Azobisisobutyronitrile (AIBN), its concentration
was 0.2%, was very important during the grafting polymerization without removal of polymerization inhibitor of AA.
The most favorable grafting polymerization conditions were that the total preirradiation dose was under 60 kGy, the
monomer concentration was lower than 30%, and the bath ratio was 1:200. FT-IR spectroscopy, surface morphology
(SEM), wide angle X-ray diffraction (WAXD) spectra of the original PP and the grafted PP were also studied.

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