胶原蛋白对超细纤维合成革基布吸湿性能和卫生性能改善的研究

Modified the sulfuric acid pretreated microfiber synthetic leather base by collagen under the crosslinking effect of FP to increase the active groups and improve the sanitary properties. Compared with that of pretreated sample, the content of carboxyl group on the modified base sample were 2.96 times and the content of amino group were 2.15 times. The water vapor permeability of collagen modified sample increased by 65.16% and the moisture absorption increased by 179.72% compared with that of pretreated sample. The test result of FT-IR, SEM, AFM, TG and water contact angle showed that the collagen molecules have crosslinked with fiber surface model equably, the microfiber base exhibits better dispersion after modification, the hydrophility enhanced, and the relative average roughness decreased. Modification by collagen also affected the thermal properties of the modified sample compared with that of the pretreated sample.