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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/14669
Title: Cleaner approach for improving the papermaking from agro and hardwood blended pulps using biopolymers
Authors: Bhardwaj S.
Bhardwaj N.K.
Negi, Yuvraj Singh
Published in: Journal of Cleaner Production
Abstract: Due to rapid deforestation, the paper industry is facing problems like shortage of forest based raw materials, cost increment and negative effects on the environment including increasing air, water and soil pollution. In India, agro residues utilized in stubble burning could be used as a sustainable fiber resource for papermaking, but the paper made from these possesses poor strength properties. Considering the multiple advantages of using agro residues and weak strength properties of the paper made from these, this study was conducted. The effect of blending hardwood pulp and agro pulp with cationic starch or chitosan at wet-end of papermaking with and without subsequent surface sizing using oxidized starch was explored. As a wet-end additive, chitosan dose of 0.5 kg/t was more promising than cationic starch dose of 5 kg/t with all pulps. Paper was produced from 85% agro and 15% hardwood pulp and 0.5 kg/t of chitosan at wet-end after surface sizing with oxidized starch. It improved the tear index, Taber stiffness, double fold and air permeance by 2.7%, 6.5%, 170%, and 300%, respectively with 18.4% decrease in Cobb 60 as compared to paper made with 100% hardwood pulp. FTIR analysis was further done to evaluate the effect on crystallinity ratio and energy changes in hydrogen bonds in the papers of differently blended pulps after surface sizing. The study signifies the enhancement in strength and surface properties of paper made using agro pulp after addition of biopolymers at wet-end with and without surface sizing. © 2018 Elsevier Ltd
Citation: Journal of Cleaner Production (2019), 213(): 134-142
URI: https://doi.org/10.1016/j.jclepro.2018.12.143
http://repository.iitr.ac.in/handle/123456789/14669
Issue Date: 2019
Publisher: Elsevier Ltd
Keywords: Agro pulp
Chitosan
Hardwood pulp
Starch
Surface sizing
ISSN: 9596526
Author Scopus IDs: 57194899731
55954738000
6701821524
Author Affiliations: Bhardwaj, S., Avantha Centre for Industrial Research & Development, Paper Mill Campus, Yamuna Nagar, Haryana 135001, India, Department of Paper Technology, Indian Institute of Technology Roorkee (IITR), Saharanpur Campus, Saharanpur, Uttar Pradesh 247001, India
Bhardwaj, N.K., Avantha Centre for Industrial Research & Development, Paper Mill Campus, Yamuna Nagar, Haryana 135001, India
Negi, Y.S., Department of Paper Technology, Indian Institute of Technology Roorkee (IITR), Saharanpur Campus, Saharanpur, Uttar Pradesh 247001, India
Corresponding Author: Bhardwaj, N.K.; Avantha Centre for Industrial Research & Development, Paper Mill Campus, India; email: bhardwaj@avantharesearch.org
Appears in Collections:Journal Publications [PE]

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