New PEG‐Modified Ladder‐Like Silsesquioxane as an Antifoaming Agent

Faranak Goodarzi; Ali Reza Karimi

doi:10.1002/slct.202003048

Study of the Effect of an Antifoaming Agent on the Evaporation of the Components During the Stirring of a Coating Dispersion Containing a Volatile Agent

Journal of Dispersion Science and Technology ◽

10.1080/01932690701757964 ◽

2008 ◽

Vol 29 (5) ◽

pp. 718-722

Author(s):

János Bajdik ◽

Éva Bölcskei ◽

Klára Pintye‐Hódi

Keyword(s):

Volatile Agent ◽

Antifoaming Agent

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The use of an organosilicon antifoaming agent in the production of diosponin, abicin, and brevicollin

Pharmaceutical Chemistry Journal ◽

10.1007/bf00772321 ◽

1973 ◽

Vol 7 (5) ◽

pp. 319-321

Author(s):

V. G. Zhurba ◽

M. T. Alyushin ◽

K. S. Chukhlebov

Keyword(s):

Antifoaming Agent

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Comparative effect of antifoaming agent polydimethylsiloxane and synthetic antioxidant tertiary butyl hydroquinone on thermal oil degradation in deep frying

10.21748/am21.556 ◽

2021 ◽

Author(s):

Mayamol Nichlavose ◽

Rupesh Sarfare ◽

Sergey Melnikov

Keyword(s):

Deep Frying ◽

Oil Degradation ◽

Synthetic Antioxidant ◽

Comparative Effect ◽

Tertiary Butyl ◽

Antifoaming Agent ◽

Thermal Oil

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Study on the Development and Performance of a New Concrete Antifoaming Agent

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.871.357 ◽

2021 ◽

Vol 871 ◽

pp. 357-362

Author(s):

Ge Li Li ◽

Yun Hui Fang ◽

Chuan Deng Wu ◽

You Zhe Shao ◽

Yuan Qiang Guo ◽

...

Keyword(s):

Surface Tension ◽

Functional Groups ◽

Gemini Surfactant ◽

Water Solubility ◽

Raw Materials ◽

Mechanical Method ◽

Silicone Surfactant ◽

Silicone Surfactants ◽

Antifoaming Agent ◽

And Performance

Gemini surfactant acetylene glycol polyethers and polyhydrosilicone oil were used as raw materials to generate the acetylene glycol surfactants with defoaming, antifoaming properties, and polyether modification through a hydrolyzation reaction. A novel silicone surfactant based on acetylene glycol-modified polyoxysilane, which has the advantages of low surface tension and good water solubility. Its structure characterized by infrared. Finally, the new silicone surfactant prepared was emulsified with a composite emulsifier, and a new concrete defoamer was prepared by a mechanical method. The defoaming performance, foam suppression performance and surface tension were tested. The results showed that the new silicone surfactants contained functional groups of acetylene glycol and siloxane. The composite emulsifiers were Span40 and Tween60, which the HLB value was 10, the amount was 5% and the emulsification time was 30 minutes. The prepared new concrete defoamer has good defoaming and antifoaming properties with a low surface tension.

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Comparison of Ether and Chloroform for Soxhlet Extraction of Freeze-Dried Animal Tissues

Journal of AOAC INTERNATIONAL ◽

10.1093/jaoac/68.6.1228 ◽

1985 ◽

Vol 68 (6) ◽

pp. 1228-1231

Author(s):

Nigel L Firth ◽

Deborah A Ross ◽

Michael L Thonney

Keyword(s):

Solvent Extraction ◽

Soxhlet Extraction ◽

Fat Content ◽

Animal Tissues ◽

Antifoaming Agent ◽

Soxhlet Apparatus ◽

Freeze Dried

Abstract Chloroform was a satisfactory replacement for ether in solvent extraction for lipid determination in freeze-dried animal tissues, although values obtained were not identical. Fat content of tissues used in this study ranged from less than 10 to more than 95%. Chloroform has the great advantage of being fireproof, but proper fume hoods should be used. An antifoaming agent should be added to chloroform, both in the Soxhlet apparatus and when it is redistilled.

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