Study on pre-irradiation induced solid phase graft copolymerization of acrylic acid on non-woven polypropylene fabric

The matrix of non-woven polypropylene fabrics could be grafted with the monomer of acrylic acid by means of pre-irradiation induced solid phase graft copolymerization.Effects of surroundings,radiation dosage,temperature,reaction time,acrylic acid concentration,medium,polymerization inhibitor and cross-linking agent on the degree of grafting were investigated.It was found that the grafting yield increases with the radiation dosage.While the effect of reaction time on the degree of grafting differs during various temperature period.The appropriate reaction condition are:N_2,irradiation dose over 50 kGy,reaction temperature 65℃,reaction time 3 h,monomer concentration 30%,medium H_2O,polymerization inhibitor'concentration 0.8 g,DVB's concentration 5 mL.