Preparation of titanium dioxide/talc composite filler and its application in decorative base paper
Titanium dioxide(TiO2)/talc composite filler was prepared by emulsion method and used in decorative base paper.Its preparation process was optimized by combining the pseudo-ternary phase diagram and response surface method of W/O emulsion.It was found that cyclohexane was more suitable for oil phase than n-heptane,and the amount of n-butanol affected the stability of emulsion.The optimum preparation process of the composite filler was Tween80/n-butanol=1∶1(weight ratio),emulsifier/cyclohexane=4∶6(weight ratio),water/cyclohexane=1∶3(weight ratio),talc/tetrabutyltitanate(TBT)=1∶4(weight ratio),resulting in an opacity of 97.0％and a whiteness of 84.0％ISO for decorative base paper.The composite filler was characterized by the methods such as scanning electron microscopy(SEM),X-ray spectrometer(EDS)and X-ray diffraction(XRD).The results showed that talc was coated with anatase type TiO2.
decorative base papertitanium dioxidetalcumcomposite filleremulsion method
万方数据
维普
