The performance of chitosan with bentonite microparticles as wet-end additive system for paper reinforcement

Rahmaninia, Mehdi; Rohi, Mostafa; Hubbe, Martin A.; Zabihzadeh, Seyed Majid; Ramezani, Omid

doi:10.1016/j.carbpol.2017.09.036

Cited by 26 publications

(16 citation statements)

References 14 publications

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“…The results in Table 3 indicated that better drainage and retention was obtained in alkaline and neutral conditions. Some studies investigated Ch alone or Chmicro/nanoparticles in acidic conditions (Ashouri et al 2006;Sabazoodkhiz et al 2017;Rahmaninia et al 2018). But this research showed that Ch performed better in alkaline and neutral conditions in combination with nanosilica.…”

Section: The Effect Of Chitosan Mw On the Nanoparticle System Performance Drainage And Fines Retention Parametersmentioning

confidence: 93%

“…As a cationic polyelectrolyte, Ch has various applications in the papermaking industry (Huang et al 2007;Ashori et al 2013;Rahmaninia et al 2018). Chitosan can be particularly useful in recycled cellulosic pulps with critical conditions (higher conductivity, existence of more undesirable substances, higher fiber fines content, and weaker fibers in comparison with virgin pulp) (Rahmaninia et al 2008;Rahmaninia and Khosravani 2015).…”

Section: Introductionmentioning

confidence: 99%

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Effect of chitosan molecular weight on the performance of chitosan-silica nanoparticle system in recycled pulp

Amiri

Rahmaninia

Khosravani

2019

BioRes

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The application of chitosan biopolymer with and without nanoparticles in the papermaking process was investigated. The effect of the chitosan’s molecular weight on its interaction with silica nanoparticles in recycled old corrugated container pulp was studied. Initially, the nanosilica particles were analyzed via atomic force microscopy and scanning electron microscopy, which confirmed the spherical shape of the silica nanoparticles with diameter less than 5 nm. Dynamic light scattering method was used to determine the zeta potential and the hydrodynamic radius of the chitosan with different molecular weights. Infrared spectroscopy was used to show the possibility of hydrogen bonding between the chitosan and the nanosilica. The results showed that the chitosan with low and medium molecular weights in alkaline and in some neutral suspensions had better process performances. Increasing the molecular weights of the chitosan improved the mechanical properties. The influence of chitosan on the process parameters was dependent on different factors such as its configuration in the aqueous media before and after adsorption, its ability to penetrate the fiber pores, and its charge density. In contrast, the effect of chitosan on the strength of paper was influenced by its performance following adsorption and retention within the fibrous mat.

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Section: The Effect Of Chitosan Mw On the Nanoparticle System Performance Drainage And Fines Retention Parametersmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Effect of chitosan molecular weight on the performance of chitosan-silica nanoparticle system in recycled pulp

Amiri

Rahmaninia

Khosravani

2019

BioRes

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“…1; after being centrifuged at 4000 x g for 30 min, the precipitate was washed with distilled water 10 times; subsequently, the precipitate was freeze-dried. The protein content was determined by the micro-Kjeldahl method (N x 6.25) (Rahmaninia et al, 2018). The PC obtained had a protein content of 78.8%.…”

Section: Preparation Of Erythrina Edulis Protein Concentrate (Pc)mentioning

confidence: 99%

Effect of ultrasound pretreatment on the antioxidant capacity and antihypertensive activity of bioactive peptides obtained from the protein hydrolysates of Erythrina edulis

et al. 2019

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The aim of this research was to evaluate the effect of ultrasound pretreatment on enzymatic hydrolysis with Flavourzyme® and Alcalase® enzymes and the ACE-inhibitory activity and the antioxidant capacity of protein hydrolysates of Erythrina edulis. A protein concentration of 78.8% was obtained after sonicating the protein solutions (10%, w/v) for 10 min at 80 kHz and 100% amplitude. The ultrasonic pretreatment (UP) increased the degree of hydrolysis (47.7%) up to 70 min, the IC50 values in both samples [with (UP) and without pretreatment (WP)] were 100 μg/mL, and the UP samples presented the highest percentage of inhibition at 57.3%. The UP hydrolysates showed the highest (p < 0.05) antioxidant (ABTS*) and radical (DPPH*) - scavenging activities, with IC50 values ranging from 64.52 to 77.62 μg/mL and from 151.13 to 173.22 μg/mL, respectively. In SDS-PAGE, the hydrolysates UP exhibited low molecular weight bands (8 - 20 kDa). The results of both, antioxidants and antihypertensive activities obtained in vitro, showed a higher percentage of activity for the peptides obtained after pretreatment with ultrasound than for those obtained without the use of ultrasound prior to enzymatic hydrolysis.

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“…For example, synergy of carboxymethyl cellulose (CMC) and modified chitosan [52], and synthesized chitosan-complexed starch nanoparticles [53] have been adopted to enhance the strength properties of a cellulosic fiber network. The combination of chitosan with bentonite microparticles to act as a wet-end additive system for paper reinforcement has been studied [54]. It was suggested that the bentonite may make a bridging between different chitosan molecules, making them act like a higher-mass cationic polymer and chitosan showed potential as a dry strength additive in mixed hardwood chemical-mechanical pulp in acidic pH.…”

Section: Wet-end Applicationmentioning

confidence: 99%

Application of Chitin/Chitosan and Their Derivatives in the Papermaking Industry

Song

Guan

et al. 2018

Polymers

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Chitin/chitosan and their derivatives have become of great interest as functional materials in many fields within the papermaking industry. They have been employed in papermaking wet-end, paper surface coating, papermaking wastewater treatment, and other sections of the papermaking industry due to their structure and chemical properties. The purpose of this paper is to briefly discuss the application of chitin/chitosan and their derivatives in the papermaking industry. The development of their application in the papermaking area will be reviewed and summarized.

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The performance of chitosan with bentonite microparticles as wet-end additive system for paper reinforcement

Cited by 26 publications

References 14 publications

Effect of chitosan molecular weight on the performance of chitosan-silica nanoparticle system in recycled pulp

Effect of chitosan molecular weight on the performance of chitosan-silica nanoparticle system in recycled pulp

Effect of ultrasound pretreatment on the antioxidant capacity and antihypertensive activity of bioactive peptides obtained from the protein hydrolysates of Erythrina edulis

Application of Chitin/Chitosan and Their Derivatives in the Papermaking Industry

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