硅对白泥碳酸钙及成纸性能的影响研究  

Study on the effect of silicon on properties of causticizing calcium carbonate and paper

作　　者：夏新兴[1] 王幸[1] 李娜[1] 童树华 

机构地区：[1]陕西科技大学轻工与能源学院,陕西西安710021 [2]浙江金昌纸业有限公司,浙江龙游324400

出　　处：《陕西科技大学学报（自然科学版）》2013年第6期6-10,共5页Journal of Shaanxi University of Science & Technology

基　　金：陕西省教育厅科研计划项目(11JS016)

摘　　要：针对草浆绿液硅含量高的问题,对绿液进行二氧化碳法除硅,并探讨了不同硅含量对苛化白泥及成纸性能的影响.结果表明:随着绿液除硅率的提高,得到的白泥碳酸钙平均粒径逐渐下降,比表面积增加,沉降体积升高,吸油值下降,白度增加.当其用于纸张加填时,纸张的光学性能、物理强度以及抗水性能都有了明显改善.当绿液的除硅率达到93%,硅含量为0.62g/L时,制得的白泥碳酸钙能代替商品PCC用于纸张加填.Removing silicon from the green liquor of straw pulping was aimed at high content in green liquor. The effect of silicon content in green liquor on properties of calcium carbon- ate prepared from alkali recovery and paper made by it were dicussed. The results show that with the increase of desilication rate, the content in green liquor,average particle size and oil absorption of causticizing calcium carbonate were decreased, and specific surface, sedimenta- tion volume and whiteness were increased. When the lime mud was used as filler in paper making, the optical properties, strength properties and water resistance were improved obvi- ously. The quality of causticizing calcium carbonate can replace the commercial PCC as pa permaking filler when the desilication rate of the green liquid is more than 93% and silicon content is 0.62 g/L.

关 键 词：草浆 绿液 硅含量 除硅 

分 类 号：TS79[轻工技术与工程—制浆造纸工程]