TITLE:
Synthesis and Surface Activity of Cashew-Based Anion-Nonionic Surfactants
AUTHORS:
Haiyan Li, Jun Wang, Changhuan Liu, Jun Han, Cuiqin Li, Mengmeng Ning
KEYWORDS:
Cashew Phenol; Anion-Nonionic Surfactant; Surface Activity; CMC
JOURNAL NAME:
Open Journal of Applied Sciences,
Vol.2 No.2,
June
27,
2012
ABSTRACT: Four novel anion-nonionic surfactants were synthesized using cashew phenol as raw material. The four structures were characterized by IR and elemental analysis. Their surface activities were investigated. Their critical micelle concentrations (CMC) are 9.30 × 10 –3 mol/L, 8.50 × 10–3 mol/L, 8.10 × 10–3 mol/L and 7.71 ×–3 mol/L respectively, and the corresponding surface tensions at CMC are 28.38 mN/m, 28.60 mN/m, 30.40 mN/m and 30.00 mN/m respectively. The contact angles of the solutions on sheet galsses were measured to observe their surface wettabilities. The effects of their concentrations, the concentrations of NaCl and temperature on their foaming capacity and foam stability were studied.