Study of Surface Dilational Elasticity and Viscosity of Nonylphenol Polyoxyethylene Ethers

Chem. J. Chinese Universities

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Study of Surface Dilational Elasticity and Viscosity of Nonylphenol Polyoxyethylene Ethers

ZHANG Chun-Rong^1,2, SONG Xin-Wang³, CAO Xu-Long³, LUO Lan¹, ZHANG Lu¹, LI Zhen-Quan³, ZHAO Sui¹*, YU Jia-Yong¹

1. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China;
2. Graduate School, Chinese Academy of Sciences, Beijing 100039, China;
3. Geological Research Institute of Shengli Oilfield Co．Ltd., SINOPEC, Dongying 257015, China

Received:2006-06-22 Revised:1900-01-01 Online:2007-04-10 Published:2007-04-10
Contact: ZHAO Sui

Abstract

Abstract: The surface dilational viscoelasticity properties of nonylphenol polyoxyethylene ethers solutions, NP-8, NP-10 and NP-12, were investigated by Langmuir trough method. The influences of concentration and the number of polyoxyethylene groups on the surface dilational properties were expounded. It is shown that the surface dilational elasticity increased with the increase of frequency, while dilational viscosity passed through an indistinctive maximum. Surface dilational elasticity and viscosity passed through the distinctive maximum with the increase of bulk concentration and changed little with the increase of the number of polyoxyethylene groups from 8 to 12. The mechanisms responsible for the experimental results were discussed based on the relaxation processes existed in or near the surface. It showed that the arrangement of polyoxyethylene chain at the surface played an important role in film properties.

Key words: Polyoxyethylene, Surface, Dilational elasticity, Dilational viscosity, Phase angle, Interfacial tension relaxation

CLC Number:

O647

TrendMD:

ZHANG Chun-Rong^1,2, SONG Xin-Wang³, CAO Xu-Long³, LUO Lan¹, ZHANG Lu¹, LI Zhen-Quan³, ZHAO Sui¹*, YU Jia-Yong¹. Study of Surface Dilational Elasticity and Viscosity of Nonylphenol Polyoxyethylene Ethers[J]. Chem. J. Chinese Universities, doi: .

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Study of Surface Dilational Elasticity and Viscosity of Nonylphenol Polyoxyethylene Ethers

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