Smart Immersion Fabrics Based on Temperature Sensitive Hydrogels Coating
A novel smart immersion fabrics with coatings based on a temperature sensitive copolymer of N-tert-butylacrylamide(NTBA) and acrylamide(AAm) on cotton fabrics has been developed.The cotton fabrics were coated using an aqueous solution of the above linear copolymer containing 1,2,3,4-butanetertracarboxylic acid(BTCA) as a cross-linker and sodium hypophosphite(SHP) as a catalyst,followed by drying and curing.The effects of cross-linking reaction conditions in coating process on water-impermeable ability of coated cotton fabrics based on hydrogels bonded on cotton fabrics were investigated in detail.The surface of the cotton fabrics was bonded on coatings of poly(NTBA-co-AAm) hydrogels,as verified by scanning electron microscopy(SEM) and optical microscopy.The hydrogels formed in the coating process also identified that –COOH of BTCA reacted with –NH2 in the linear polymer and formed three-dimensional network hydrogels.Fourier transform infrared spectroscopy (FTIR) was used to characterize the cross-linking reaction.A new band appearing at 1736cm-1,which is due to the ester group,indicates that the –COOH of BTCA reacts with –OH of cellulose.The coated cotton fabrics bonded on hydrogels hold a great potential as immersion suits and other temperature-sensitive fabrics with tunable water flow.
Iimmersion resistance Stimuli-sensitive polymers Hydrogels Coatings Swelling
Liu Shufang Liu Gu Zhenya Niu Jiarong Xie Hongdeng
College of Textiles,Tianjin Polytechnic University,Tianjin 300160,China
国际会议
杭州
英文
2008-10-15（万方平台首次上网日期，不代表论文的发表时间）