Influence of disperse dyes on dyeing of ethylated wood powder/plystyrene plastic composites

Ethylated wood powder /polystyrene plastic composites(WPC) was prepared by compounding ethylated wood powder with polystyrene,then dyed with disperse dyes under high pressure and at high temperature.The color shade,color difference,washing fade rate and the percentage of the dye were tested,and the dyeing properties was characterized by infrared spectroscopy(IR) and scanning electron microscopy(SEM).The results show that disperse dyes can be used for the dyeing of WPC,and the color shade of dyed WPC was close to that of dyed polyester fabric.The dyeing rate and washing fastness of the dyed WPC was related to disperse dyes types,dyeing temperature and dye concentration.When the ethylated wood powder compounded with polystyrene,transition pores in the ethylated wood powder were filled with polystyrene,then it was dyed with disperse dyes,the surface of WPC become much smooth,which is beneficial for the reflection of light and consequently more bright dyed WPC.