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Textile Research Journal
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Crosslinking of Cotton Cellulose in the Presence of Alpha-aminoacids Part III: Pore Structures

Chang Wang

Department of Civil Engineering, Nanya Institute of Technology, Jhongli, Taoyuan, Taiwan 32091, R. O. C.

Jui-Chin Chen

Department of Materials and Textiles, Oriental Institute of Technology, Pan-Chiao, Taiwan 22091, R. O. C.

Wei-Hua Yao

Department of Materials and Textiles, Oriental Institute of Technology, Pan-Chiao, Taiwan 22091, R. O. C.

Cheng-Chi Chen

Department of Chemical Engineering, Nanya Institute of Technology, Jhongli, Taoyuan, Taiwan 32091, R. O. C., c1133{at}nanya.edu.tw

Two kinds of alpha-amino acids were used to combine with dimethylol-dihydroxyethyleneurea (DMDHEU) as crosslinking agents. It was found that the values of equilibrium dye absorption, dyeing rate constant and the structural diffusion resistance constant for various combinations of crosslinking agents were in the rank of DMDHEU-glutamic acid > DMDHEU-aspartic acid > DMDHEU alone at the same dyeing temperature. The activation energies of dyeing for the three crosslinked fabrics were ranked as follows: DMDHEU > DMDHEU-aspartic acid > DMDHEU-glutamic acid. The patterns of fiber cross-section obtained by scanning electron microscopy showed that the degree of the swelling of the DMDHEU crosslinked fiber was somewhat lower than that of DMDHEU-alpha-amino acid crosslinked fibers. From this it was concluded that the fabrics crosslinked with the DMDHEU-alpha-amino acid combinations had a larger pore structure.

Key Words: crosslinking • alpha-amino acid • pore structure • cotton interaction

Textile Research Journal, Vol. 76, No. 4, 336-342 (2006)
DOI: 10.1177/0040517506060140
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