高遮盖力碳酸钙/钛白粉复合白色颜料研究

Study on High Hiding Power Calcium Carbonate/TiO_2 Composite White Pigment

采用机械力化学法制备了碳酸钙/TiO2复合粉体(C/TCP),通过添加微量高遮盖力的氧化铁红、氧化铁黑颜料提高了复合粉体的遮盖力,研究了氧化铁红、氧化铁黑添加量对复合粉体性能的影响。结果表明,当氧化铁黑含量为0.08%时,复合粉体的遮盖力为21.1 g/m2、白度为83.4%、吸油量为12.8 g/100 g。

The calcium carbonate/TiO2 （C/TCP） was prepared by mechano-chemical method. The hiding power of C/TCP was improved by adding a small amount of high hiding power iron oxide red and iron oxide black pigments. The influences of additive amount of iron oxide red and iron oxide black to the properties of C/TCP were studied. The results showed that the hiding power of C/TCP was 21.1g/m2, whiteness was 83.4%, oil absorption was 12.8 g/100g, while the iron oxide black content was 0.08%.