Primary Uses
1. Detergent or defoamer
L61, L64, F68 are used to formulate low-foam, high-detergent synthetic detergents;
L61, L81 are used as defoamers in the paper or fermentation industry;
F68 is used as a defoamer during blood circulation in an artificial heart-lung machine to prevent air from entering.
2. Excipients and emulsifiers
Polyether has very low toxicity and is often used as a drug excipient and emulsifier; It is often used in the mouth, nasal sprays, eyes, ear drops, and shampoos.
3. Wetting agent
Polyether is an effective wetting agent that can be used in acid baths for dyeing, photographic development and electroplating of fabrics, and F68 is used in sugar mills, where more sugar can be obtained due to the increased permeability of water.
4. Antistatic agent
Polyether is a useful antistatic agent, and L44 provides long-lasting electrostatic protection against synthetic fibers.
5. Dispersant
Polyether is used as a dispersant in emulsion coatings. F68 is used as an emulsifier during polymerization of vinyl acetate emulsion. L62, L64 can be used as pesticide emulsifier, coolant and lubricant in metal cutting and grinding. It is used as a lubricant when rubber is vulcanized.
6. Demulsifier
Polyether can be used as crude oil demulsifier, L64, F68 can effectively prevent the formation of hard scale in oil pipelines, and for the recovery of secondary oil.
7. Papermaking auxiliaries
Polyether can be used as a papermaking auxiliary, and F68 can effectively improve the quality of coated paper; It is also used as a bleaching aid.
8. Preparation and application
Polyether polyol series products are mainly used in the preparation of rigid polyurethane foam, which are widely used in refrigerators, freezers, refrigerated trucks, heat insulation boards, pipe insulation and other fields. The prepared product has low thermal conductivity and good dimensional stability, which is also an important raw material for the preparation of combined polyether. Production of polyether polyols
In the polyurethane industry, it is mainly used for polyurethane foam, and the main varieties are polypropylene oxide polyol and polytetrahydrofuran ether polyol.