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Citation: Han Guo-Bin, Wu Jin-Tian, Xu Xiao-Ming. Influence of TBP on the Surface Rheological Properties of C₁₂E₈ Studied by Surface Wave Method[J]. Acta Physico-Chimica Sinica, ;2000, 16(06): 507-510. doi: 10.3866/PKU.WHXB20000606 shu

Influence of TBP on the Surface Rheological Properties of C₁₂E₈ Studied by Surface Wave Method

1.
Department of Chemistry,State Key Laboratory for Physical Chemistry of Solid Surface,Institute of Physical Chemistry,Xiamen University,Xiamen 361005

Received Date: 17 September 1999
Available Online: 15 June 2000

The influence of antifoaming agent TBP on the surface adsorption and on the surface rheological properties of foaming agent C12E8 is investigated by the damped longitudinal wave method, and the antifoaming mechanism of the antifoaming agent TBP on C12E8 is explored in this paper. The experimental results show that while the concentration of foaming agent C12E8 is smaller than cmc and at ω=6.28 rad•s-1, the decreases of surface dilational modulus, surface dilational elasticity, surface dilational viscosity and the increases of the phase angle when the concentration of TBP increase for the C12E8+TBP aqueous solution (C12E8=0.074 mmol•L-1) have been related to the diffusional exchange between surface and bulk and to the Maran ni effect, which depends on the restored mechanism of surface tension gradient due to the stretched surface. This has been related to the mechanism of antifoaming action.
- Surface wave,
- Mechanism of antifoaming action,
- Surface dilational modulus,
- Surface dilational elasticity,
- Surface dilational viscosity,
- Phase angle
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Influence of TBP on the Surface Rheological Properties of C12E8 Studied by Surface Wave Method

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通讯作者: 陈斌, bchen63@163.com

Influence of TBP on the Surface Rheological Properties of C₁₂E₈ Studied by Surface Wave Method