Background and overview[1]
Oleic acid polyoxyethylene ester belongs to fatty acid polyoxyethylene ester. Fatty acid polyoxyethylene ester is a very important non-ionic active agent, which has a wide range of uses, such as oleic acid polyoxyethylene (3~5 ) grease is used as an antistatic agent in textile processing and the production of synthetic fibers; in leather, it is used as a softener and lubricant for tanned leather; it is used as an emulsifier in ink manufacturing; and it is used as an emulsifier for cutting oil in metal processing. , used as emulsifier and dispersant for metal cleaning agents and detergent solvents. Oleic acid polyoxyethylene (10-15) grease is used as a special detergent and dyeing auxiliary in the textile industry; in leather processing, it is used as a cow’s foot oil emulsifier; in the coating and printing industry, it is used as a pigment and ink Grinding aid; in paper industry, used as paper relubricant; in rubber industry, used as dispersant; in plastic industry, used as plasticizer; also used as pesticide, glass, paraffin emulsifier, etc. To sum up, the industrial application prospects of fatty acid polyoxyethylene esters are very broad and have great development value.
Preparation[1]
Put 300.0g oleic acid and 1.68g catalyst (composed of tetramethylammonium chloride and CoO, tetramethylammonium chloride and CoO) into a 2L reactor with stirring, electric heating jacket and internal water-cooling coil. The mass ratio of CoO is 1:0.25), and the reactor is sealed. Replace the nitrogen in the reactor with nitrogen three times, start stirring, raise the temperature to 90°C and perform vacuum treatment at a pressure of -0.09MPa for 60 minutes, then raise the temperature to 140°C and maintain this temperature, introduce ethylene oxide, and control the ethylene oxide. The feed rate of ethylene oxide is maintained at 0.3MPa, and the feed is stopped when a total of 373.8g of ethylene oxide is fed. The ripening reaction is carried out at 140°C until the pressure no longer drops (indicating that the ripening reaction has been completed), and at -0.09 Perform vacuum treatment at a pressure of MPa for 30 minutes, and then lower the temperature to 40°C to obtain a fatty acid polyoxyethylene ester product.
Apply[2-3]
Application 1,
CN201210510487.9 discloses a modified silanized metal surface pretreatment agent containing oleic acid polyoxyethylene ester, which is made of the following raw material components by weight: deionized water 100, modified coupling agent 10- 15. Propanol 10-15, silane coupling agent KH-91230-40, silane coupling agent KH-6920-30, dicumyl peroxide 1-2, sodium perfluorooctane sulfonate 0.002-0.003 alcohols , Monobutyltin trichloride 0.3-0.5, Acrylic emulsion 4-6, Sodium carboxymethyl cellulose 2-3, Span 600.4-1.0, Polyoxyethylene oleate 0.2-0.6, Lanthanum acetate 0.005-0.01, Phytic acid 0.1-0.3. The final product is obtained through coupling agent modification, compounding, and additive distribution and mixing reaction. The modified silanized surface pretreatment agent of the present invention has the characteristics of non-toxic, environmentally friendly, easy to use, dense and uniform silane film, strong adhesion, and good corrosion resistance.
Application 2,
CN201711287993.5 reports a preparation method of curing powder coating. The coating is composed of the following mass parts: oleic acid polyoxyethylene ester 5-15, cyclized rubber 3-7, initiator 2-4, turpentine 3-5, 1,1-diethylene chloride copolymer 1-3, Thickener 1-5, bisphenylphenol polyoxyethylene ether 2-4, glyoxal 2-6, sodium dibutyl succinate sulfonate 3-9, cellulose acetate solution 3-6, the rest The amount is water; mix polyoxyethylene oleate and cyclized rubber in water to form a solution, gradually add the remaining raw materials, stir for 10-30 minutes, and let stand. The temperature is controlled at 165°C-170°C, and extruded in a twin-screw extruder. It is melted and mixed in the discharge machine, extruded and granulated, then crushed and screened, and discharged. The powder coating prepared by this method solves the problem of being restricted by curing conditions in actual production, and has the characteristics of safe and convenient storage and transportation.
References
[1] [Invented in China] CN201910437669.X Synthesis method of fatty acid polyoxyethylene ester
[2] CN201210510487.9 A modified silanized metal surface pretreatment agent containing oleic acid polyoxyethylene ester and its preparation method
[3] Preparation method of CN2 Cabot Carbon Black 01711287993.5 curable powder coating
