Research on property of absorptive functional fiber based on polymethacrylate prepared via reactive extrusion and melt-spinning

N-butyl methacrylate(BMA) homopolymer was synthesized by aqueous suspension polymerization using polyvinyl alcohol as a dispersing agent and benzoyl peroxide(BPO) as an initiator.BMA homopolymer melt and hydroxyethyl methacrylate(HEMA) monomer containing the initiator(BPO) were reacted in the twin-screw extruder by means of the reactive extrusion.Polymethacrylate fiber with three-dimensional network crosslink structure which was built by hydrogen bonding interactions of hydroxyl groups of HEMA in the macromolecules was prepared via melt spinning.The microstructure and related properties of the fiber samples were characterized through absorption performance test,gel fraction test,Fourier transform infrared spectroscopy(FT-IR),field emission scanning electron microscopy(FESEM) and differential scanning calorimetry(DSC).The results show that the comprehensive properties of the obtained fiber are best when the mass ratio of HEMA monomer to BMA homopolymer was equal to 3∶7,and the saturated absorbency for trichloroethylene and chloroform are 12.16 and 10.97g/g,respectively.