Using borax as a cross-linking agent in cellulose-based hydrogels

2019 2nd International Conference on Composite Materials Science and Technology

Phoothong, Farin^1 ; Boonmahitthisud, Anyaporn^2^3 ; Tanpichai, Supachok^4

Program of Petrochemical and Polymer Science, Faculty of Science, Chulalongkorn University, Bangkok

10330, Thailand^1

Department of Materials Science, Faculty of Science, Chulalongkorn University, Bangkok

10330, Thailand^2

Green Materials for Industrial Application Research Unit, Faculty of Science, Chulalongkorn University, Bangkok

10330, Thailand^3

Learning Institute, King Mongkut's University of Technology Thonburi, Bangkok

10140, Thailand^4

关键词: Cellulose fiber;    Chemical treatments;    Cross linking agents;    Equilibrium water contents;    Fourier transform infrared;    Mixed solution;    Swelling ratio;    Water hyacinth fibers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/600/1/012013/pdf
DOI  :  10.1088/1757-899X/600/1/012013

来源: IOP

【 摘 要 】

In this research, the cellulose-based hydrogels were obtained from the water hyacinth fibers (WHFs) with aids of borax as a chemical cross-linker. The chemical treatment on WHFs, confirmed by Fourier transform infrared (FT-IR) analysis and thermogravimetric analysis (TGA), exhibited the reduction of hemicellulose and lignin. The treated cellulose fibers were dissolved in the mixed solution of NaOH/urea prior to mixing with borax at the cellulose/borax weight ratio of 1/0, 1/0.5 and 1/1 to prepare cellulose-based hydrogels. The effect of borax contents on the properties of cellulose-based hydrogels was investigated. The results showed that the swelling ratio and equilibrium water content of the obtained hydrogels were similar with increasing a borax content.