Effects of MFC-modified GCC as Filler on the Opacity of Pulp Handsheets

Yanqun Su; Junjie Liu; Jingang Liu; Ruijuan Zhang; Jinghuan Chen; Yanfen Du

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Effects of MFC-modified GCC as Filler on the Opacity of Pulp Handsheets

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Microfibrillated cellulose(MFC)was obtained by mechanical grinding of different pulps.MFC-modified ground calcium carbonate(GCC)was prepared in two different ways,designated MFC-GCC composite filler and MFC-GCC flocs filler.The opacity of pulp handsheets loaded with MFCmodified GCC was measured.The effects of MFC originated from different pulps,pretreatment method,and filler modification on the opacity of handsheets loaded with MFC-modified GCC were discussed.The results show that MFC originated from alkaline peroxide mechanical pulp(APMP)was optimal for improving the opacity of the handsheets and PFI grinding pretreatment for MFC provided a denser structure in the corresponding MFCAPMP-GCC floc filler while enzyme pretreatment was more effective in increasing the opacity of the filled paper.Under the experimental conditions,the opacity of handsheets increased from 81.0%to 82.7%when the unmodified GCC was replaced by an equivalent amount of MFCAPMP-GCC composite filler,while other properties were unchanged.

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《造纸与生物质材料：英文版》 |2020年第3期|P.62-69|共8页
作者
Yanqun Su; Junjie Liu; Jingang Liu; Ruijuan Zhang; Jinghuan Chen; Yanfen Du;
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作者单位

China National Pulp and Paper Research Institute Co. Ltd. Beijing 100102 ChinaNational Engineering Laboratory for Pulp and Paper Beijing 100102 China;

China National Pulp and Paper Research Institute Co. Ltd. Beijing 100102 China;

China National Pulp and Paper Research Institute Co. Ltd. Beijing 100102 ChinaNational Engineering Laboratory for Pulp and Paper Beijing 100102 China;

China National Pulp and Paper Research Institute Co. Ltd. Beijing 100102 ChinaNational Engineering Laboratory for Pulp and Paper Beijing 100102 China;

China National Pulp and Paper Research Institute Co. Ltd. Beijing 100102 ChinaNational Engineering Laboratory for Pulp and Paper Beijing 100102 China;

China National Pulp and Paper Research Institute Co. Ltd. Beijing 100102 ChinaNational Engineering Laboratory for Pulp and Paper Beijing 100102 China;

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原文格式 PDF
正文语种 chi
中图分类计算技术、计算机技术;
关键词
microfibrillated cellulose; ground calcium carbonate; modification; opacity;

机译：微纤维化纤维素;碳酸钙;改性;不透明度;

Effects of MFC-modified GCC as Filler on the Opacity of Pulp Handsheets

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