Study of Selecting Proper Chitosan from Various Chitosan Sample as Paper Strengthening Agent

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.117-119.1421 ◽

2011 ◽

Vol 117-119 ◽

pp. 1421-1424

Author(s):

Yong Sheng Ma ◽

Xian Hui Sun

Keyword(s):

Wheat Straw ◽

Strengthening Effect ◽

Chitosan Sample ◽

Viscosity Range ◽

Wheat Straw Pulp

It is usually reported that chitosan is used as paper strengthening agent. However, it is sorry that the study choosing chitosan which DD (degree of de-acetyl )and viscosity is filtered by experiments is blank. Many chitosan samples of wide viscosity range and wide DD range were tested by their strengthening effect on bleched wheat straw pulp. Then a few sample of chitosan is selected because of their obvious strengthening effect on pulp. This study could be as the foundation of further research of chitosan used as paper strengthening agent.

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Study on Application as Cigarette Paper Dry Strengthening Agent of CPAM Emulsion

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1004-1005.619 ◽

2014 ◽

Vol 1004-1005 ◽

pp. 619-622

Author(s):

Wen Ju ◽

Jiang Qiang Zhang ◽

Yue Li ◽

Xiang Wei Liu

Keyword(s):

Electron Microscopy ◽

Wheat Straw ◽

Kraft Pulp ◽

Strengthening Mechanism ◽

Strengthening Effect ◽

Paper Pulp ◽

Wheat Straw Pulp ◽

Breaking Length ◽

Cigarette Paper ◽

Scanning Electron

Homemade water in water cationic polyacrylamide (CPAM) emulsion was applied in cigarette paper pulp as dry strengthening agent with other strengthening agent. Good collaborative effect was achieved when CPAM was used in bleached wheat straw pulp with strengthening agent E and with cationic additives L as paper pulp strengthening agent. It was also showed that distinct strengthening effect was obtained when CPAM emulsion was applied in mixture of bleached needle kraft pulp (NBKP) and wheat straw pulp, breaking length and tearing index of cigarette handsheet made of mix pulp was respectively increased by 22.2% and17.0% when the dosage of CPAM was 0.8% of dry fiber. Through analysis of cigarette handsheet section scanning electron microscopy (SEM) photos, strengthening mechanism of CPAM emulsion to cigarette paper pulp was preliminary studied.

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The Effect of Microwave Treatment on the Hydrogen Peroxide Bleaching of Soda-AQ Wheat Straw Pulp

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.236-238.1307 ◽

2011 ◽

Vol 236-238 ◽

pp. 1307-1312

Author(s):

Chao Jun Wu ◽

Chuan Shan Zhao ◽

Jun Li ◽

Ke FU Chen

Keyword(s):

Hydrogen Peroxide ◽

Wheat Straw ◽

Fiber Length ◽

Weighted Average ◽

Microwave Treatment ◽

Arithmetic Average ◽

Peroxide Bleaching ◽

Bleached Pulp ◽

Infra Red ◽

Wheat Straw Pulp

In this paper, the effect of microwave treatment on the hydrogen peroxide bleaching of Soda-AQ wheat-straw pulp was investigated. The results showed that microwave treatment could increase the brightness of the hydrogen peroxide bleached pulp. The fiber coarseness of microwave enhancing peroxide bleached pulp was higher than that of the peroxide bleached pulp. However, the arithmetic average fiber length, the length weighted average fiber length and weight weighted average fiber length of the former was lower than that of the latter. Fourier transform infra-red spectroscopy (FTIR) and X-ray diffraction (XRD) spectra showed that CrI(%) crystallinity of microwave enhancing peroxide bleached pulp was similar as that of the peroxide bleached pulp but all higher than that of the Soda-AQ wheat-straw pulp. N·O′KI infra-red crystalline index of microwave enhancing peroxide bleached pulp were lower than that of the peroxide bleached pulp. The FTIR spectra of lignin showed that the microwave treatment had some influences on the methoxyl and phenolic group in lignin.

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Xylanase and laccase aided bio-bleaching of wheat straw pulp

The Canadian Journal of Chemical Engineering ◽

10.1002/cjce.21798 ◽

2013 ◽

Vol 92 (1) ◽

pp. 131-138 ◽

Cited By ~ 11

Author(s):

Bhavin S. Dedhia ◽

Mangesh D. Vetal ◽

Virendra K. Rathod ◽

Csoka Levente

Keyword(s):

Wheat Straw ◽

Wheat Straw Pulp

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Preparation and Properties of Multi-Layer Composite Paperboard

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.774-776.1010 ◽

2013 ◽

Vol 774-776 ◽

pp. 1010-1013

Author(s):

Quan Xiao Liu ◽

Dan Xi Li ◽

Fei Ma ◽

Chang Qing Chen ◽

Jun Yang

Keyword(s):

Wheat Straw ◽

Raw Materials ◽

Pulp Fiber ◽

Paper Pulp ◽

Mechanical Pulp ◽

Physical Strength ◽

Chemical Pulp ◽

Layer Composite ◽

Wheat Straw Pulp ◽

The Cost

In order to study the preparation and property of the multi layer composite paperboard, bleached wheat straw pulp, bleached chemical thermal mechanical pulp and waste newsprint pulp are used as raw materials to making paperboard. The results show that the bonding force between fibers of grasses chemical pulp is strong which can improve the bonding strength between the layers. Bleached wheat straw pulp is used as outer layer and waste news paper pulp is used as inner layer to make composite paperboard has high physical properties. Bleached chemical thermal mechanical pulp fiber is shorter, so paperboard tightness and physical strength reduce, which can be used as the lining of the multi layer composite paperboard to improve the stiffness of the paperboard and reduce the cost.

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Study on Synthesis of Cationic Water in Water Polyacrylamide Emulsion Strength Agent

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.581-582.164 ◽

2012 ◽

Vol 581-582 ◽

pp. 164-167

Author(s):

Yong Sheng Ma ◽

Lin Tong Wang ◽

Xian Hui Sun ◽

Na Liu ◽

Guang Li Song

Keyword(s):

Reaction Time ◽

Ammonium Persulfate ◽

Strengthening Effect ◽

Mass Ratio ◽

Water Emulsion ◽

Emulsion Copolymerization ◽

Sodium Hydrogen ◽

Cationic Monomer ◽

Wheat Straw Pulp ◽

Polymerization Conditions

Emulsion copolymerization of acrylamide (AM) and cationic monomer DMC (methyl acrylacyl oxyethyl trimethyl ammonium chloride) was studied. A series of cationic polyacrylamide (CPAM) emulsion were synthesized using Water in water emulsion polymerization. Influence of polymerization conditions such as cationic monomer (DMC) ratio, reaction time, the initiator dosage on synthetic product strengthening effect to paper pulp was studied. It was showed that the CPAM emulsion optimal synthetic conditions was that AM monomer second adding amount was 60% AM total amount, ammonium persulfate initiator and sodium hydrogen sulfite initiator dosage was 0.138g and 0.03g respectively, mass ratio of DMC and AM was 15:85, reaction time was 7 hours. When the dosage of CPAM emulsion was 1.0% to absolute dry bleached wheat straw pulp, distinct strengthening effect was acquired, tensile index and tearing index of handsheet was increased by 27.2% and 26.8% respectively.

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