利用有机化凹凸棒石颗粒制备W/O型Pickering乳液

doi:10.13218/j.cnki.csdc.2014.10.121

Abstract

Abstract: Attapulgite ore was selected and its surface was modified with hexadecyltrimethoxysilane to prepare nano-particles.Then the new nano-particles were used for preparing emulsion.The effects of factors such as pH of the system,mass fraction of the nano-particles and volume fraction of the oil phase on stability of the Pickering emulsion were systematically investigated.Results showed that with increase of pH of the dispersion system,average diameter of emulsion droplets increases first,then decreases and then increases and decreases again.When mass fraction of the nano-particles increases,amount of the nano-particles that can be used to stabilize the emulsion increases,results in improvement of emulsion stability.Following increase of volume fraction of the oil phase,average diameter of the emulsion droplets increases first,then decreases and then increases and decreases again.W/O emulsion stabilized by organo-modified attapulgite nano-particles was successfully prepared by adjusting the pH of the aqueous phase.

Key words: Pickering emulsion, organo-attapulgite, phase inversion

CLC Number:

O648

ZHANG Fang-fang, QUAN Li-na, CHEN Hao, ZHAO Jie. W/O Pickering emulsions prepared with organo-attapulgite particles[J].China Surfactant Detergent & Cosmetics, 2014, 44(10): 541-545.

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W/O Pickering emulsions prepared with organo-attapulgite particles

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