[Chemical Knowledge]：Allyl alcohol polyether polyol properties, uses, upstream and downstream raw materials, storage methods, allyl polyether structure.

Properties of allyl alcohol polyether polyols

Allyl alcohol polyether polyol is a kind of important chemical products with unique physical and chemical properties. Its main component is a polyol formed by polymerization of allyl alcohol with an epoxy compound. The product is usually colorless to light yellow transparent liquid, with good fluidity and low volatility. The molecular weight of the allyl alcohol polyether polyol can be controlled by adjusting the degree of polymerization to achieve different physical properties such as viscosity, density and glass transition temperature. This kind of polyol has good chemical stability, is not easy to be oxidized and degraded, and can keep its performance stable in a wide temperature range.

Allyl alcohol polyether polyol use

Allyl alcohol polyether polyols are widely used in industry. It is an important raw material for polyurethane foam materials, used in the production of flexible and rigid foams, coatings, adhesives and sealants. Its good compatibility and reactivity make allyl alcohol polyether polyols perform well in these applications. In cosmetics and personal care products, allyl alcohol polyether polyols act as humectants and thickeners to improve product texture and stability. Such polyols are also widely used in the fields of lubricants, surfactants and drug carriers, showing their versatility and importance in different industries.

Upstream raw materials

The upstream raw materials for the production of allyl alcohol polyether polyols mainly include allyl alcohol and epoxy compounds. Allyl alcohol is an important chemical raw material, which is usually produced by direct oxidation of propylene or dehydrogenation of isopropanol. Epoxy compounds, such as ethylene oxide and propylene oxide, are produced by the epoxidation of hydrocarbons. Ethylene oxide is usually produced by the oxidation of ethylene, while propylene oxide can be produced by the chlorohydrin process or the co-oxidation process. As the production of these upstream feedstocks is heavily dependent on the petrochemical industry, the stability of their supply chain and price fluctuations will directly affect the production costs and market prices of allyl alcohol polyether polyols.

Downstream Products

Allyl alcohol polyether polyols, as intermediates, can be further processed into a variety of downstream products. The most important downstream products are polyurethane materials, including rigid foams and flexible foams, which are widely used in building insulation, furniture, automotive interiors and other fields. In addition to polyurethanes, allyl alcohol polyether polyols are also used in the production of special coatings and adhesives, which have excellent adhesion properties and chemical resistance. Through chemical modification, allyl alcohol polyether polyols can also be used to prepare biodegradable plastics and high-performance lubricants, further expanding its application range.

Production process

The production process of allyl alcohol polyether polyol mainly includes polymerization reaction and refining process. In the polymerization reaction, allyl alcohol is copolymerized with an epoxy compound under the action of a catalyst to produce a polyether polyol having a specific molecular weight and structure. Commonly used catalysts are alkaline catalysts and metal complex catalysts, and different catalyst types and reaction conditions will affect the performance and yield of the product. After the polymerization reaction, the product needs to go through a series of purification steps, including degassing, dehydration and filtration, to remove unreacted monomers and catalyst residues, and to ensure the purity and quality of the final product.

storage method

Storage of allyl alcohol polyether polyols requires special care to ensure that their performance is not affected. The product should be stored in a closed, dry, cool environment, avoid direct sunlight and high temperature. Allyl alcohol polyether polyol is easy to absorb moisture, so moisture-proof packaging should be used, such as aluminum foil bags or plastic drums, and the sealing of the packaging should be checked regularly. Storage containers shall be of corrosion resistant material and shall avoid contact with metal to prevent product degradation reactions. For long-term storage, regular quality inspections should also be carried out to ensure that the product still meets the requirements of various indicators during use.

market prospect analysis

Allyl alcohol polyether polyol market prospects, driven by a variety of factors. With the continuous development of the construction, automobile and furniture industries, the demand for polyurethane materials is increasing, which directly drives the market demand for allyl alcohol polyether polyols. Increasingly stringent environmental regulations have prompted companies to seek more environmentally friendly chemical products, and allyl alcohol polyether polyols are ideal for their lower VOC emissions and excellent performance. With the rapid growth of the cosmetics and personal care industry, the application of this product in these fields is also expanding. In the future, with the advancement of technology and the expansion of application fields, the market for allyl alcohol polyether polyols is expected to maintain steady growth.

Conclusion

Allyl alcohol polyether polyol, as an important chemical intermediate, has excellent physical and chemical properties and is widely used in many industries. Its production relies on a steady supply of raw materials upstream, while diversified downstream products further enhance its market value. Reasonable storage methods and expanding market demand indicate that allyl alcohol polyether polyols will continue to occupy an important position in the future chemical market.