Synthesis of Chelating Surfactant and its Application in Silk Degumming

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Ethanediyl-N-hexadecyl-tri(sodium α-glycinate) (N-hexadecyl ED3A), which belongs to the chelating surfactants, was synthesized by three-step reactions in this study. The structure of the product was characterized by IR. The surface activity and the properties of N-hexadecyl ED3A as degumming agent were investigated. The IR spectra showed the characteristic bands corresponding to the stretching vibration of C-N, -COONa, and C-H groups. The critical micelle concentration (cmc) of N-hexadecyl ED3A was 0.249mmol•L-1, and the surface tension at the cmc (γcmc) of it was 33.03mN•m-1. This revealed that the surfactant had fairly low cmc and excellent surface activity. Lower dosage of N-hexadecyl ED3A showed as good result as the conventional soap in silk degumming process, and the degumming result was also excellent without adding the chelating dispersant.

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Periodical:

Edited by:

Rui Wang and Huawu Liu

Pages:

245-248

DOI:

10.4028/www.scientific.net/AMR.331.245

Citation:

Y. Zhang et al., "Synthesis of Chelating Surfactant and its Application in Silk Degumming", Advanced Materials Research, Vol. 331, pp. 245-248, 2011

Online since:

September 2011

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$35.00

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