多孔硅酸钙加填轻型纸的脱墨性能研究  

Study on the Deinking Performance of Porous Calcium Silicate-filled Munken Paper

作　　者：史梦华 董超 刘春景 李丹 魏鑫鑫 王玉珑 戴洋 李玉林[2] 吴学勋 SHI Menghua;DONG Chao;LIU Chunjing;LI Dan;WEI Xinxin;WANG Yulong;DAI Yang;LI Yulin;WU Xuexun(Yueyang Forest&Paper Co.,Ltd.,Yueyang,Hu’nan Province,414002;School of Chemistry and Chemical Engineering,Changsha University of Science&Technology,Changsha,Hu’nan Province,410114;Hunan Refining New Material Technology Co.,Ltd.,Changsha,Hu’nan Province,410221)

机构地区：[1]岳阳林纸股份有限公司,湖南岳阳414002 [2]长沙理工大学化学化工学院,湖南长沙410114 [3]湖南瑞福尼新材料科技有限公司,湖南长沙410221

出　　处：《中国造纸》2022年第7期41-45,共5页China Pulp & Paper

摘　　要：本研究对粉煤灰基多孔硅酸钙填料的物理性能进行了分析,并对多孔硅酸钙加填轻型纸的脱墨性能进行了研究。结果表明,多孔硅酸钙填料密度小、比表面积大、孔隙率高,呈现“蜂窝状”结构,且白度高,磨耗低;多孔硅酸钙加填轻型纸的脱墨性能好,脱墨浆白度增值高,经浮选脱墨后其油墨去除率、残余油墨浓度和脱墨浆ISO白度增值分别为84.3%、159.9 mg/kg和17.1%,明显优于轻质碳酸钙(轻钙)加填轻型纸(分别为68.9%、230.2 mg/kg和10.4%),但其浮选脱墨浆渣率略高于轻钙填料,两者分别为3.44%、2.32%。与轻钙加填轻型纸的脱墨浆相比,多孔硅酸钙加填轻型纸的脱墨浆纸张松厚度好、裂断长和耐折度高,有助于生产高松厚度、高强度纸张。In this study,physical properties of porous calcium silicate were analyzed,and the deinking performance of porous calcium silicate-filled munken paper was studied. The results showed that the porous calcium silicate with a honeycomb structrue was of low density,large specific surface area,high porosity and brightness,and low abrasion;the porous calcium silicate-filled munken paper showed good deinking performance with high pulp brightness increase,and ink removal rate,residual ink concentration and deinked pulp brightness increase after flotation deinking were 84. 3%,159. 9 mg/kg and 17. 1%,respectively,significantly higher than those of(PCC)counterpart(corresponding to 68. 9%,230. 2 mg/kg and 10. 4%,respectively);however,the deinked pulp reject rate of the porous calcium silicate filled munken paper was slightly higher than that of the PCC filled munken paper,which were 3. 44% and 2. 32%,respectively;the handsheet analysis showed that the deinked pulp of porous calcium silicate-filled munken paper had higher bulk,breaking length and folding endurance strength,which was beneficial to producing high-bulk and high-strength paper.

关 键 词：多孔硅酸钙 轻型纸 脱墨性能 油墨去除率 高松厚度 

分 类 号：TS76[轻工技术与工程—制浆造纸工程]