Transesterification reaction and application in anti-wrinkle finishing of cotton fabrics
| Autor: | Jie Min, Xiaoting Zhang, Jian Jun Pan, Xianghui Dai, Xia Yu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Polymers and Plastics
technology industry and agriculture chemistry.chemical_element Infrared spectroscopy Zinc Transesterification chemistry.chemical_compound chemistry Triethyl citrate parasitic diseases lipids (amino acids peptides and proteins) Cellulose Fourier transform infrared spectroscopy Citric acid Curing (chemistry) Nuclear chemistry |
| Zdroj: | Cellulose. 28:11183-11197 |
| ISSN: | 1572-882X 0969-0239 |
| Popis: | Citric acid (CA) can impart good anti-wrinkle properties to treated cotton fabrics, but it also causes significant strength loss and yellowing. In this paper, Trimethyl citrate was applied to anti-crease finishing of cotton fabrics. The transesterification reaction between the ester group of trimethyl citrate and the hydroxyl group of cellulose was investigated and the possible crosslinking and anti-crease mechanism was proposed. Fourier transform infrared spectroscopy (ATR-FTIR) was used to study the changes of infrared spectra of trimethyl citrate in heterogeneous transesterification of cotton fabrics. The results showed that trimethyl citrate can occur heterogeneous transesterification reaction with cellulose. The optimized procedure for treating fabrics was 0.1 mol / L of zinc acetate, 0.2 mol / L of trimethyl citrate, curing temperature of 130 °C, and curing time of 3 min. Consequently, the WRA of treated fabrics could be increased to 132°, 46.7% higher than that of untreated fabrics at 90°, and the strength retention rate (TSR) of treated fabrics could reach 85.7%. This indicates that transesterification has a potential for industrial applications. |
| Databáze: | OpenAIRE |
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