Modification of biological starch macromolecule with phosphate and dimethylammonium chloride acyloxylate substituents confers good desizability, film properties, paste stability and adhesion.

Autor: Li W; College of Textiles and Garments, Anhui Polytechnic University, Wuhu 241000, PR China; State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200000, PR China. Electronic address: fangzhiliweiwu@sina.com., Cheng X; College of Textiles and Garments, Anhui Polytechnic University, Wuhu 241000, PR China., Xu Z; College of Textiles and Garments, Anhui Polytechnic University, Wuhu 241000, PR China., Ruan F; College of Textiles and Garments, Anhui Polytechnic University, Wuhu 241000, PR China., Yan H; College of Textiles and Garments, Anhui Polytechnic University, Wuhu 241000, PR China. Electronic address: yanhongqin1997@sina.com.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2024 Feb; Vol. 258 (Pt 1), pp. 128862. Date of Electronic Publication: 2023 Dec 20.
DOI: 10.1016/j.ijbiomac.2023.128862
Abstrakt: This study revealed the influence of phosphorylation-dimethylammonium chloride acyloxylation (PDACA) on the desizability, film properties, paste stability, and adhesion of biological starch macromolecules. A new starch-based sizing agent, phosphorylated-dimethylammonium chloride acyloxylated starch (PDACAS), was synthesized with degrees of substitution (DS) ranging from 0.033 to 0.065. Compared to control phosphorylated-quaternized starch (PQS, 87.4 %), the desizing efficiency of cotton yarns sized with PDACAS was ~94 %, exceeding the industrial minimum requirement of 90 %. The PDACAS film tensile properties were as follows: elongation at break of 3.31 %-3.78 %, bending endurance of 1131-1537 cycles, and tensile strength of 35.83-28.31 MPa, compared with those of acid-thinned starch (ATS) film (2.74 %, 957 cycles, and 38.12 MPa). The PDACAS had paste stability of ~92 %, compared with 83.3 % for ATS. The bonding forces (an indicator of adhesion to fibers) ranged from 107.1 N to 125.3 N for cotton roving, and 128.3 N to 148.7 N for polyester/cotton roving, which were significantly better than those of ATS (95 N for cotton and 117.9 N for polyester/cotton roving). Overall, PDACA treatment effectively avoided the adverse effect of high DS quaternization on the desizability of PQS and imparted good film properties, paste stability, and adhesion to starch.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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