Wood Powder Coated with Carboxymethylcellulose for Papermaking

Abstract:

Wood powder is widely used in production of wood-plastic composite materials, paint, animal feed, etc. In this paper, shape features of wood powder were analyzed and its performance in papermaking was tested. Based on the theoretical basis of deposition technique and electrostatic attraction mechanism between cationic ion and anionic ion, wood powder was coated with carboxymethylcellulose. And, then, the charge reversal has occurred on the wood powder with aluminum sulfate and polyamide polyamine epichlorohydrin. Coated wood powder can be more easily adsorbed on the fiber due to anionic charge. The experimental results show that the papermaking performance of wood powder is improved by coating with carboxymethylcellulose. The wood powder can be used in papermaking by appending a certain percentage of bleached kraft pulp. The bulkiness of paper presents an increasing trend with the increasing of wood powder addition. However the tensile index of paper has a certain decreased. Its physical property is suited to usage.

• Periodical: Advanced Materials Research (Volume 629)
• Pages: 344-346
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.629.344
• Online since: December 2012
• Authors: Xian Qi Sun, Chuan Shan Zhao, Jin Jin Yu
• Keywords: Carboxymethylcellulose, Papermaking, Surface Coating, Wood Powder

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