Polyether polyol (polyether for short) is prepared by adding polymerization reaction of starting agent (compound containing active hydrogen group) with ethylene oxide (EO), propylene oxide (PO), butane oxide (BO) in the presence of catalyst.With glycerol (glycerin) as the starting agent and epoxide (PO and EO are generally used together), various general polyether polyols can be produced by changing the feeding mode of PO and EO (mixed or separate), dosage ratio, feeding sequence and other conditions. Polyether (polyether polyol) is an important derivative of propylene oxide and one of the main raw materials for the synthesis of polyurethane.

    1, special polyether as low foam detergent or defoaming agent L61, L64, F68 for the preparation of low foam, high detergents synthetic detergent; 　　L61, L81 used as defoaming agent in papermaking or fermentation industry; 　　F68 is used as an defoamer during blood circulation in the artificial heart-lung machine to prevent air from entering.

    2, polyether toxicity is very low, commonly used as drug excipients and emulsifiers;It is often used in oral and nasal sprays such as polyether, eye and ear drops and shampoos.

    3, polyether is an effective wetting agent, can be used for fabric dyeing, photographic development and electric crossing of acid margin, in the sugar factory using F68, due to the increase of water permeability, can obtain more sugar.

    4, polyether is a useful antistatic agent, L44 can provide lasting electrostatic protection for synthetic fibers.

    5, polyether in emulsion coating as dispersant.F68 is used as emulsifier in vinyl acetate emulsion polymerization.L62, L64 can be used as pesticide emulsifier, coolant and lubricant in metal cutting and grinding.Used as a lubricant in vulcanization of rubber.

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

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

    8, F38 can be used as emulsifier, wetting agent, defoamer, demulsifier, dispersant, antistatic agent, dust removal agent, viscosity regulator, foam control agent, leveling agent, gelling agent, etc., used in the production of agricultural chemicals, cosmetics, drugs;Also used in metal processing cleaning, pulp and paper industry, textile processing (textile, finishing, dyeing, soft finishing), water treatment;Also used as bleaching aid.