The effect of MFC on the pressability and paper properties of TMP and GCC based sheets

被引：85

作者：

Hii, Collin ^{[1
]}

Gregersen, Oyvind W. ^{[1
]}

Chinga-Carrasco, Gary ^{[2
]}

Eriksen, Oyvind ^{[2
]}

机构：

[1] Norwegian Univ Sci & Technol, NTNU, N-7034 Trondheim, Norway

[2] PFI, Paper & Fibre Res Inst, NO-7491 Trondheim, Norway

来源：

NORDIC PULP & PAPER RESEARCH JOURNAL | 2012年 / 27卷 / 02期

关键词：

MFC; microfibrillated cellulose; Field Emission SEM; Air resistance; Tensile index; Z-directional strength; Gurley; Pressability; Fines; Drainage; Wet pressing; MICROFIBRILLATED CELLULOSE; KRAFT PULP; FILLER; RETENTION; FINES; NANOFIBRILS; COMPONENTS; OXIDATION; FIBERS;

D O I：

10.3183/NPPRJ-2012-27-02-p388-396

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

Different qualities of microfibrillated cellulose (MFC) were blended with thermomechanical pulp (TMP) and ground calcium carbonate (GCC) filler. The addition of MFC reduced the drainage of the pulp suspension but improved strength properties. Wet pressing experiments showed that optimal use of MFC and filler could enhance the strength and optical properties without reducing the solids content after wet pressing. Field-emission scanning electron microscopy (FESEM) revealed that MFC adsorbed onto and contributed to the bonding of the filler particles and fibres. The MFC binds the filler-MFC-fines aggregates to the fibre network and partially filled the pore network. As a result, MFC addition increased the air resistance and internal bonding of the sheet.

引用

页码：388 / 396

页数：9

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