eMAI New Materials

1231 (DTAC): How a Quaternary-Ammonium Molecule Controls Industrial Interfaces

Explain how the C12 amphiphilic structure of 1231 supports emulsification, dispersion, antistatic performance, wetting, penetration, and interface regulation.

Published
Article Source
羿麦新材料
Platform
WeChat Official Account
Source Website
www.ematerial.cn
Company
eMAI New Materials

Article Summary

Dodecyl trimethyl ammonium chloride (1231/DTAC) contains a C12 hydrophobic chain and a positively charged quaternary-ammonium head. Its amphiphilic balance supports spontaneous interfacial orientation, with a high HLB value and a surface tension of approximately 33 mN/m in a 0.1% solution.

Key functions include emulsion and dispersion stabilization, antistatic adsorption on fibers, wetting and penetration, and interface regulation. Compared with 1227, 1231 is positioned more strongly as an interface-control material; active content, free amine below 2.0%, pH 6.0–8.0, and anionic-system compatibility remain important control points.

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