Flame-retardant and UV-resistant properties of phytic acid/tea polyphenol finishing cotton fabric
To solve the problems of easy burning and poor UV resistance of cotton fabric,and to improve its safety,the method of combination of dip and spray was adopted in this paper,and the flame retardant/UV resistance cotton fabric was prepared through the synergistic action of phytic acid(PA)and tea polyphenol(Tea),and its flame retardant,UV protection,stretching and air permeability were studied.The results show that the quality increase rate of 2.5%PA and 25 g/L Tea composite flame retarded cotton fabric is only 13.3%,while the LOI value is increased from 17.5%to 30.4%,and self-extinguishing.Compared with raw cotton fabric,PA/Tea flame retardant finish cotton fabric,not only did the peak heat release rate(PHRR)decrease by more than 78.2%,but its total heat release capacity(THR)and heat release capacity(HRC)also decreased by more than 70.8%and 78.3%,which means that it can reduce the fire heat release intensity,the less combustion feedback to the fabric heat.Impeding the rapid propagation of flame,it has good absorption performance for UVB and UVC ultraviolet rays and retains more than 85.1%of air permeability while realizing flame retardant and UV protection functions.
万方数据
维普
