Properties and application of ethylene oxide propylene oxide block polymer

1. As a low foaming detergent or defoamer. L61, L64, F68 are used to prepare low foaming and high detergency synthetic detergent; L61 is used as defoaming agent in papermaking or fermentation industry; F68 is used as defoaming agent in artificial heart-lung machine blood circulation to prevent air from entering.

2, polyether toxicity is very low, often used as pharmaceutical excipients and emulsifiers; often used in oral, nasal sprays, eyes, ear drops and shampoos.

3. Polyether is an effective wetting agent. It can be used in the acid bath of dyeing, photographic development and electroplating of fabrics. F68 is used in sugar factories, and more sugar can be obtained due to the increased permeability of water.

4, polyether is an effective antistatic agent, L44 can provide long-lasting electrostatic protection for synthetic fibers.

5. Polyether is used as a dispersant in emulsion coatings. F68 is used as an emulsifier in the emulsion polymerization of vinyl acetate. L62, L64 can be used as pesticide emulsifier, used as coolant and lubricant in metal cutting and grinding. Used as a lubricant when vulcanizing rubber.

6. Polyether can be used as crude oil demulsifier. L64 and F68 can effectively prevent the formation of hard scale in the oil pipeline and the recovery of secondary oil.

7, polyether can be used as a papermaking auxiliaries, F68 can effectively improve the quality of coated paper.

8, F38 can be used as emulsifier, wetting agent, defoamer, demulsifier, dispersant, antistatic agent, dust remover, viscosity modifier, foam control agent, leveling agent, gelling agent, etc., used in production Agrochemicals, cosmetics, pharmaceuticals; also used in metal processing, washing, pulp and paper industry, textile processing (textile, finishing, dyeing, soft finishing), water treatment; also used as rinse aids.

9. P65 is mainly used in the wool spinning industry. As a wool protection agent, 0.3% is added to the wool carbonization process, which can reduce wool scale damage, enhance single fiber strength by 10%, and reduce spinning breakage rate by 10%.

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