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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/14711
Title: Enhancement of processability, surface, and mechanical properties of paper based on rice straw pulp using biopolymers for packaging applications
Authors: Bhardwaj S.
Bhardwaj N.K.
Negi Y.S.
Published in: Tappi Journal
Abstract: Two biopolymers, chitosan and oxidized starch, were used as wet-end additives to improve the strength properties of the paper because of their biodegradable and non-hazardous qualities. The present study reports the improvement in surface and strength properties of packaging-grade paper made with rice straw pulp using biopolymers, chitosan, oxidized starch, and surface sizing added at the wet end of the paper machine. Use of chitosan at all doses from 0.5 to 10 kg/ton enhanced important surface and strength properties of paper. The breaking length, tear index, burst index, ring crush strength, stretch, tensile energy absorption index, and Taber stiffness of the paper with 10 kg/ton of chitosan as a wet-end additive showed 22%, 14%, 20%, 59%, 16%, 44%, and 48% improvement, respectively, in comparison to control, (i.e, without its addition). The Cobb60 was also reduced by 45%, showing better resistance to water in comparison to rice straw paper alone. The effects of chitosan added at the wet end on the paper surface were investigated using Fourier transform infrared spectroscopy (FTIR). The use of 10 kg/ton of chitosan at the wet end reduced the color and total suspended solids in the back water of the papermaking system by 55% and 51%, respectively. Further enhancement in the surface and strength properties of paper was observed following surface sizing with oxidized starch. Application: Application of chitosan on rice straw pulp along with surface sizing using oxidized starch produced a high-quality packaging grade paper/paperboard that may be of interest to the paper, paperboard, and packaging industry. © TAPPI Press 2019.
Citation: Tappi Journal (2019), 18(7): 431-440
URI: https://doi.org/10.32964/TJ18.7.431
http://repository.iitr.ac.in/handle/123456789/14711
Issue Date: 2019
Publisher: TAPPI Press
ISSN: 7341415
Author Scopus IDs: 57194899731
55954738000
6701821524
Author Affiliations: Bhardwaj, S., Indian Institute of Technology Roorkee (IITR), Saharanpur Campus, Saharanpur, India
Bhardwaj, N.K., Avantha Centre for Industrial Research & Development (ACIRD), Paper Mill Campus, Yamuna Nagar, India
Negi, Y.S., Department of Paper Technology, Indian Institute of Technology Roorkee (IITR), Saharanpur Campus, Saharanpur, India
Corresponding Author: Bhardwaj, N.K.; Avantha Centre for Industrial Research & Development (ACIRD), Paper Mill Campus, India; email: bhardwaj@avantharesearch.org
Appears in Collections:Journal Publications [PE]

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