The grafting of ethylene glycol dimethacrylate (EGDMA) onto silk in aqueous alcohol systems using potassiumpersulfate (KPS) in the presence of air was investigated. Effects of grafting conditions
such as concentrations of monomer
initiator and formic acid
temperature and time
on the graft yield were determined. The optimum graft conditions were foundto be: T = 80℃
t = 30 min
[KPS] = 1.85% [on the weight ofmonomer (owm)]; [formic acid] = 0.2% (V/V); [EGDMA] =80% [on the weight of fiber(owf)].The activation energy of grafting at 50-80℃ was found to be 71.31 kJ/mol for EGDMA.Grafting equations were also evaluated.The graft yield value can be regulated by the concentration of monomer.The graft copolymerization of EFDMA onto silk is effective in improving the crease-proofing of silk fabrics.
Abstract
The grafting of ethylene glycol dimethacrylate (EGDMA) onto silk in aqueous alcohol systems using potassiumpersulfate (KPS) in the presence of air was investigated. Effects of grafting conditions
such as concentrations of monomer
initiator and formic acid
temperature and time
on the graft yield were determined. The optimum graft conditions were foundto be: T = 80℃
t = 30 min
[KPS] = 1.85% [on the weight ofmonomer (owm)]; [formic acid] = 0.2% (V/V); [EGDMA] =80% [on the weight of fiber(owf)].The activation energy of grafting at 50-80℃ was found to be 71.31 kJ/mol for EGDMA.Grafting equations were also evaluated.The graft yield value can be regulated by the concentration of monomer.The graft copolymerization of EFDMA onto silk is effective in improving the crease-proofing of silk fabrics.
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