纳米硫酸钡复合材料对改善纸张性能的研究

Study on the Improvement of Paper Properties by Nano-baritite Composites Material

关键词:  纳米硫酸钡复合材料  二氧化钛  纸张性能

Key Words:nano-baritite composites material  titanium dioxide  paper properties

摘要:作为造纸填料的二氧化钛（TiO₂）价格昂贵，为降低生产成本，着重研究了纳米硫酸钡复合材料部分替代TiO₂作为填料和涂布颜料对纸张物理性能的影响。结果表明，添加一定量的纳米硫酸钡复合材料有助于TiO₂的分散；当纳米硫酸钡复合材料作为浆内添加填料时，在替代量为0~16%的变化范围内，纸张的物理性能得到改善，替代量为6%时，纸张的白度提升至89.0%，不透明度达到96.5%；当纳米硫酸钡复合材料作为涂布颜料时，随着涂布量的增加，纸张油墨吸收性呈现增长的趋势，Lab*值中b^*值逐渐减小，纸张抗蓝光能力显著增强。

Abstract:Due to the high price of titanium dioxide， this work focused on the effect of nano-baritite composites material partly replaced titanium dioxide as filler and coating pigment on the physical properties of paper to reduce the production cost. The results showed that the addition of nano-baritite composites material was helpful to the dispersion of titanium dioxide. In addition， the physical properties of the paper were improved when the substitution amount of nano-baritite composites material in the range of 0~16%. Particularly， the whiteness of paper was increased to 89.0% and the opacity improved to 96.5% with the substitution amount of nano-baritite composites material of 6%. When the nano-baritite composites material was used as coating pigment， with the increase of the coating amount of nano-baritite composites material， the paper ink absorption showed increased， and the b^* value in Lab* value gradually decreased， indicating the blue light resistance of the paper increased significantly.