Coaggregation of mineral filler particles and starch granules as a basis for improving filler-fiber interaction in paper production

被引：34
作者：
Li, Ting [1 ]
Fan, Jun [1 ]
Chen, Wensen [1 ]
Shu, Jiayan [1 ]
Qian, Xueren [1 ]
Wei, Haifeng [3 ]
Wang, Qingwen [1 ,2 ]
Shen, Jing [1 ]
机构：
[1] Northeast Forestry Univ, Minist Educ, Key Lab Bio Based Mat Sci & Technol, Harbin 150040, Peoples R China
[2] South China Agr Univ, Coll Mat & Energy, Guangzhou 510642, Guangdong, Peoples R China
[3] Jiangsu Univ Sci & Technol, Zhenjiang 212003, Peoples R China
来源：
CARBOHYDRATE POLYMERS | 2016年 / 149卷
关键词：
Coaggregation; Starch granules; Mineral filler particles; Paper-based cellulosic networks; Strength enhancement; Bondability; PRECIPITATED CALCIUM-CARBONATE; BETA-D-GLUCAN; PRE-FLOCCULATION; CATIONIC STARCH; DRY STRENGTH; CARBOXYMETHYL CELLULOSE; WHEAT-STRAW; LIME MUD; PAPERMAKING; RETENTION;
D O I：
10.1016/j.carbpol.2016.04.082
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The sustainable, efficient use of renewable bio-based additives in the production of various materials fits well into the concept of sustainability. Here, the concept of coaggregation of mineral filler particles and starch granules for improving filler-fiber interaction in paper-based cellulosic networks is presented. Coaggregation of precipitated calcium carbonate filler particles and uncooked, unmodified corn starch granules by cationic polyacrylamide (a cationic high molecular weight polymer flocculant) in combination with bentonite (an anionic microparticle) prior to addition to cellulosic fiber slurry delivered enhanced filler bondability with cellulosic fibers. For instance, under the conditions studied, preaggregation resulted in an increase in filler bondability factor from 9.24 to 15.21 at starch dosage of 1% (on the basis of the dry weight of papermaking stock). The swelling and gelatinization of the starch granules in starch-filler preaggregates or hybrids enabled the "bridging" of the gaps in cellulosic networks, leading to structural consolidation and strength enhancement. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：20 / 27
页数：8
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