颗粒型聚醚：一类新型的非水基泡沫消泡剂

doi:10.3969/j.issn.2097-2806.2025.06.003

Abstract

Abstract:

Using triblock copolymer poly（ethylene oxide）-poly（propylene oxide）-poly（ethylene oxide） and citric acid as raw materials, a novel polyether was synthesized through condensation-carbonization under high temperature, which had a hyperbranched structure using nanocarbon as the core, or crosslinked morphology connected by nanocarbon. The mixture of triethanolamine monooleate/p-xylene was selected as a model system to produce nonaqueous foam. It was found that the synthesized polyether had a high defoaming efficiency up to 86% within 30 min, demonstrating a defoaming rate over 2 000 times that of the defoamer-free system. Furthermore, the crude oil from Gudao oil production plant was foamed under high pressure of CO₂. The polyether also showed good defoaming efficiency to this foam of crude oil. Our work might provide a new strategy to synthesize nanocarbon-hybridized polyether, which could find applications in cases where defoamers based on organosilicone could hardly be used on a large scale, e.g., the foamed oil produced by the oilfield auxiliary chemicals that are intensively used during oil exploitation.

Key words: particulate, polyether, nonaqueous, foam, defoamer

CLC Number:

TQ423

Yujiang Wang, Longhao Tang, Xiaoqian Liu, Ning Feng, Hongguang Li. Particulated polyether: A novel defoamer for nonaqueous foams[J].China Surfactant Detergent & Cosmetics, 2025, 55(6): 700-708.

Figures/Tables 6

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References 30

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Particulated polyether: A novel defoamer for nonaqueous foams

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