磁响应的海藻酸钙微球稳定油包水型Pickering乳液研究

doi:10.3969/j.issn.1001-1803.2019.08.003

Abstract

Abstract:

Calcium alginate microspheres internally encapsulated with Fe₃O₄ nanoparticles were prepared by emulsion gel method. The surface of the microspheres was coated with hydrophobically modified titanium dioxide nanoparticles and dispersed well in hexane. Due to the coating of alkyl silane-modified titanium dioxide nanoparticles, calcium alginate microspheres can be used to stabilize the water-in-oil Pickering emulsion. By optimizing the calcium alginate microsphere content, the particle size of Pickering emulsion can be adjusted. Additionally, the microsphere-stabilized Pickering emulsion can be oriented and magnetically demulsified under the action of an external magnetic field.

Key words: Pickering emulsion, calcium alginate, wettability, magnetic response

CLC Number:

O648.2 +3

YANG Xin,SUN He-jia,WANG Wei-hao,WANG Yao-lei,QIU Zhong-ping,MENG Tao. Study on water-in-oil Pickering emulsion stabilized by magnetic responsive calcium alginate microspheres[J].China Surfactant Detergent & Cosmetics, 2019, 49(8): 503-507.

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References 21

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元素	质量比/%	原子比/%
C	2.4	3.8
O	69.3	82.4
Cl	7.7	4.2
Ca	18.0	8.6
Ti	2.5	1.0

Study on water-in-oil Pickering emulsion stabilized by magnetic responsive calcium alginate microspheres

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