Preparation and application of cationized pulp fiber as a papermaking wet-end additive

Xie, Wei; Feng, Hai-li; Qian, Xueren

doi:10.1007/s11676-008-0039-y

Cited by 4 publications

(4 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Their advantages are low cost, biodegradability and low toxicity [ 3 , 4 ]. Cationized celluloses and other polysaccharides have been studied intensively in recent decades as flocculants, paper additives, hair care products and absorbent materials [ 3 , 4 , 5 , 6 , 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

The effect of mixing and consistency on cellulose cationization

Willberg‐Keyriläinen

Pitkänen

Hulkko

et al. 2019

Heliyon

View full text Add to dashboard Cite

Traditional chemical modifications of cellulose are usually done at low or medium consistencies. Processing at high solids content is expected to provide a leap forward in reduction of manufacturing costs such as minimization of chemical use, energy consumption and decreasing processing equipment size, while at the same time increasing reaction efficiency. In this research, high consistency modifications of cellulose were studied through cationization reaction. Four different laboratory scale high consistency reactors were tested and the effect of mixing on fiber properties was analyzed. All reactors decreased cellulose fiber length and no significant difference between cellulose starting consistencies and mixing time on fiber properties were found. The cationization reaction efficiency increased as the cellulose starting consistency increased in all of the tested reactors. In addition, mercerization of pulp as pretreatment, significantly increased reaction efficiency.

show abstract

Section: Introductionmentioning

confidence: 99%

The effect of mixing and consistency on cellulose cationization

Willberg‐Keyriläinen

Pitkänen

Hulkko

et al. 2019

Heliyon

View full text Add to dashboard Cite

show abstract

“…Natural polymers, such as cellulose fibers, chitosan, starch, etc., have been modified by cationization and used as strength agents in papermaking to improve the specific bond strength or increase the bonding area (Wei et al 2008;Ma et al 2010). Montplaisir et al (2006a,b) reported that the cationization of thermo-mechanical pulp fibers as softwood thermo-mechanical pulp (TMP) fibers grafted with a quaternary ammonium group improved the strength of papers and the adsorption of fines on fibers.…”

Section: Introductionmentioning

confidence: 99%

“…Montplaisir et al (2006a,b) reported that the cationization of thermo-mechanical pulp fibers as softwood thermo-mechanical pulp (TMP) fibers grafted with a quaternary ammonium group improved the strength of papers and the adsorption of fines on fibers. In another study, Wei et al (2008) investigated the application of cationized pulp fibers as a papermaking wetend additive. They found that the tensile strength of papers was improved by 12% when 0.9% cationized softwood fiber was added to wheat straw soda pulp, and no noticeable effect was found on the stock drainage.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Cationic CMP and Softwood Long Fibers as Strength-Enhancing Additive to CMP Pulp

2017

View full text Add to dashboard Cite

aCompared to chemical pulp, mechanical and chemi-mechanical pulps (CMP) are limited in regards to the manufacturing of high quality paper. Chemical additives are an effective way to enhance the properties of paper; however, the effectiveness depends on the additive type and dosage. The utilization of cationized natural polymers has been shown to offer a promising solution. In this study, softwood long fiber (SLF) and CMP were cationized by 3-chloro-2-hydroxypropyl-trimethylammoniumchloride (CHPTAC), and the effects of cationization on the properties of CMP pulp were studied. Cationization was characterized by FTIR and the nitrogen content, and its effect on the CMP properties was evaluated through mechanical tests and fines retention. Cationization at low and moderate levels and in higher mixing rates improved the mechanical properties of CMP. Compared to cationized CMP, the addition of cationized SLF (CLF) improved the strength and fines retention properties. The CLF application to CMP at a CHPTAC dosage of 5% increased the tensile, burst, and tear strengths by 66.4%, 100%, and 3.6%, respectively. The cationized SLF increased the fines retention by 12.7%.

show abstract

“…The cationic modification makes the fiber surface positive charged; therefore, the addition of cationic fiber results in high filler retention, well drainage property, and strong ability of absorbing anion distracters [8]. In recent ten years, this method has been paid more and more attention in papermaking industry, Xie and coworkers investigated the cationic modified fibers, which can improve the retention rate of Precipitated Calcium Carbonate (PCC), with an added proportion of 0.9%, and the retention rate increased from 57.73% to 72.21%, with the turbidity of white water decreased at the same time [21]. Cationized cellulose fibers improved strength and adsorption of anionic fines and fillers by increasing positive charges on fiber surface [20].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Application of Cationic Modified Cellulose Fibrils as a Papermaking Additive

Gao¹,

Qun

Yu³

et al. 2016

International Journal of Polymer Science

View full text Add to dashboard Cite

This paper deals with cationic modified cellulose fibrils obtained by reacting the cellulose fibrils with 2,3-epoxypropyltrimethylammonium chloride (EPTMAC). The physical and chemical properties of unmodified cellulose fibrils (UMCF) and cationic modified cellulose fibrils (CMCF) were characterized by SEM, FTIR, degree of substitution, colloid titration, zeta potential, and thermogravimetric analysis. The experimental results showed that, after cationization, surface charge density and zeta potential reversed, thermal stability decreased, and new functional groups appeared, while the surface morphology did not show much difference from the UMCF. With the addition of three kinds of additives (UMCF, CMCF, and cationic starch (CS)) to BCTMP, the addition of UMCF and CMCF had little effect on zeta potential, while the addition of CS changed zeta potential obviously. With the increasing of additive amount, the bulk of paper sheets added CMCF did not change obviously, while the bulk of paper sheets added UMCF and CS decreased rapidly. With regard to physical strength, all the three kinds of additives could improve the tensile index and tear index; the tensile index of paper sheets added CS was higher than that of added UMCF and CMCF, while the tear index of paper sheets added CMCF was the highest among the three additives.

show abstract

Preparation and application of cationized pulp fiber as a papermaking wet-end additive

Cited by 4 publications

References 3 publications

The effect of mixing and consistency on cellulose cationization

The effect of mixing and consistency on cellulose cationization

Preparation of Cationic CMP and Softwood Long Fibers as Strength-Enhancing Additive to CMP Pulp

Preparation and Application of Cationic Modified Cellulose Fibrils as a Papermaking Additive

Contact Info

Product

Resources

About