Flocculation of alkyl ketene dimer and calcium carbonate on paper sizing and filling performance
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Lihong Zhao
und
Junli Ren
Abstract
In order to solve the conflict between precipitated calcium carbonate (PCC) filling and alkyl ketene dimer (AKD) sizing for paper, this study explored two new flocculation methods: AKD and PCC were flocculated separately in the process ((A)(P)F), while the two pre-flocs from AKD and PCC were blended in the process ((AP)F). The result showed that increasing the dosage of the flocculant cationic starch (CS) resulted in a significant growth in the median size of PCC flocs and reduction in the specific surface area, turbidity, the negative charge of Zeta potential, as well as the adsorption capacity of PCC to AKD. Consequently the sizing degree and filler retention rate of the handsheets rose markedly. With 125 mg g−1 of CS, compared with the conventional process, the filler retention rate for (A)(P)F grew up to 86.16%; the Cobb60 values for both (AP)F and (A)(P)F declined, and the contact angle (CA) increased to 120.65° and 127.65° respectively. At the same time, the filler bondability factor (FBF) were increased due to the intensified bonding force between fibers, and resultantly the comparable mechanical properties of papersheets with a high level of filler retention was obtained from (AP)F and (A)(P)F flocculation processes.
Funding source: Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control
Award Identifier / Grant number: 2021KF24
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: The work Supported by the Foundation (No. 2021KF24) of Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, College of Light Industry and Food Engineering, Guangxi University.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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© 2023 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Biorefining
- Possible alternatives for using kraft lignin as activated carbon in pulp mills – a review
- Technical kraft lignin from coffee parchment
- Nitric acid-potassium hydroxide fractionation of rice straw: an integrated biorefinery initiative
- Paper technology
- The influence of fibrous suspension flow regimes on the formation of tissue paper manufactured from different furnish compositions
- Paper physics
- Assessment of paperboard large deformation at fold using digital image correlation technique
- Paper chemistry
- Response surface methodology optimization and antimicrobial activity of berberine modified trimethoprim carboxymethyl cellulose
- Packaging
- Addition of bentonite to cationic starch matrix for coating on kraftliner paper to improve grease resistance
- Recycling
- Changes in water-vapor-adsorption isotherms of pulp fibers and sheets during paper recycling, including drying of wet webs, and disintegration and sonication of dried sheets in water
- Determination of fines in recycled paper
- Disintegration of toilet papers used in shopping malls
- Nanotechnology
- Cryoslash as an effective pre-treatment to obtain nanofibrillated cellulose using ultra-fine friction grinder with kraft pulp
- Pre-treatment with calcium hydroxide and accelerated carbonation for cellulosic pulp fibrillation
- Chemical technology/modifications
- Study on manufacturing hot water-resistant PVOH coated paper by gas grafting palmitoyl chloride (II)–Control of palmitoyl chloride penetration by inorganic pigments coating
- Lignin
- Efficient and eco-friendly isolation and purification of lignin from black liquor with choline chloride-based deep eutectic solvents
- Misc
- Flocculation of alkyl ketene dimer and calcium carbonate on paper sizing and filling performance
Artikel in diesem Heft
- Frontmatter
- Biorefining
- Possible alternatives for using kraft lignin as activated carbon in pulp mills – a review
- Technical kraft lignin from coffee parchment
- Nitric acid-potassium hydroxide fractionation of rice straw: an integrated biorefinery initiative
- Paper technology
- The influence of fibrous suspension flow regimes on the formation of tissue paper manufactured from different furnish compositions
- Paper physics
- Assessment of paperboard large deformation at fold using digital image correlation technique
- Paper chemistry
- Response surface methodology optimization and antimicrobial activity of berberine modified trimethoprim carboxymethyl cellulose
- Packaging
- Addition of bentonite to cationic starch matrix for coating on kraftliner paper to improve grease resistance
- Recycling
- Changes in water-vapor-adsorption isotherms of pulp fibers and sheets during paper recycling, including drying of wet webs, and disintegration and sonication of dried sheets in water
- Determination of fines in recycled paper
- Disintegration of toilet papers used in shopping malls
- Nanotechnology
- Cryoslash as an effective pre-treatment to obtain nanofibrillated cellulose using ultra-fine friction grinder with kraft pulp
- Pre-treatment with calcium hydroxide and accelerated carbonation for cellulosic pulp fibrillation
- Chemical technology/modifications
- Study on manufacturing hot water-resistant PVOH coated paper by gas grafting palmitoyl chloride (II)–Control of palmitoyl chloride penetration by inorganic pigments coating
- Lignin
- Efficient and eco-friendly isolation and purification of lignin from black liquor with choline chloride-based deep eutectic solvents
- Misc
- Flocculation of alkyl ketene dimer and calcium carbonate on paper sizing and filling performance
