[Chemical Knowledge]：Properties, uses, upstream and downstream raw materials, storage methods, 2-hydroxybutyric acid methyl ester

Dimethylolbutyric acid properties

Dimethylolbutyric acid (Trimethylolpropionic acid, TMPA), chemical formula C7H14O4, is an organic compound with three hydroxyl groups and one carboxyl group. Its molecular structure makes it have good solubility and reactivity. TMPA is generally a white crystalline solid with a high melting point (about 129-133°C) and is soluble in water, ethanol and other polar organic solvents.

Dihydroxymethyl butyric acid use

Dihydroxymethyl butyric acid is widely used in the chemical industry, mainly including the following aspects:

1. Coatings and resins :TMPA is commonly used in the synthesis of polyester resins, alkyd resins and polyurethane resins, which are widely used in coatings and paints. Its polyhydroxy structure can significantly improve the hardness, wear resistance and chemical resistance of the coating.

2. Plasticizer: As a plasticizer, TMPA can improve the flexibility and durability of plastics, making it suitable for the manufacture of various high-performance plastic products.

3. Adhesives and sealants :TMPA is used to produce adhesives and sealants with excellent adhesion and elasticity, which are widely used in the construction, automotive and electronics industries.

4. Lubricants and Lubricant Additives: The application of TMPA in lubricants can improve the stability and oxidation resistance of lubricating oils and extend their service life.

Dimethylol Butyric Acid Upstream Raw Material

The main raw materials for the production of dimethylol butyric acid include formaldehyde, isobutyraldehyde and formic acid. The specific production process is as follows:

1. Formaldehyde and isobutyraldehyde reaction under the action of alkaline catalyst, formaldehyde and isobutyraldehyde aldol condensation reaction to generate dimethylolbutyric acid precursor intermediate.

2. Intermediate Oxidation The intermediate is converted to the final dimethylolbutyric acid by an oxidation reaction. The process requires control of the reaction conditions to ensure product purity and yield.

The prices and availability of these upstream raw materials directly affect the production costs and market prices of TMPA.

Dimethylolbutyric acid downstream products

Dihydroxymethyl butyric acid is widely used in the production of various downstream products, including coatings, resins, plastics, adhesives, sealants and lubricants. Specific application examples are as follows:

1. Coatings and resins :TMPA, as an important crosslinking agent, can improve the wear resistance and corrosion resistance of coatings, making it suitable for surface coating in the fields of construction, automobile and home appliances.

2. High-performance plastics: By copolymerizing with other monomers, TMPA plastics have excellent mechanical properties and chemical resistance, and are widely used in electronics, medical and packaging fields.

3. Industrial adhesives and sealants :TMPA-based products are widely used for sealing and bonding in the construction, automotive and electronics industries to ensure structural stability and durability.

Dimethylol Butyric Acid Storage Method

Because the chemical properties of dimethylol butyric acid are relatively stable, the following points should be paid attention to during storage to ensure its quality and safety:

1. Storage environment :TMPA should be stored in a cool, dry, well-ventilated warehouse, avoid direct sunlight and high temperature environment to prevent product decomposition and deterioration.

2. Container requirements: use containers with good sealing performance for storage, avoid contact with moisture and impurities in the air, and prevent moisture absorption and pollution.

3. Fire Protection: Although TMPA itself is not flammable, storage areas should be equipped with appropriate fire fighting equipment and kept away from fire sources and high temperature areas.

4. Regular inspection: regularly check the tightness of the storage container and the status of the product, and deal with problems in time to prevent quality problems.

Dimethylol Butyric Acid Market Prospects

With the continuous development of industry and consumer goods industry, the market demand for dimethylol butyric acid is expected to grow steadily. Especially in coatings, plastics and adhesives and other downstream areas of the promotion, TMPA application prospects are very broad. The development trend of green environmental protection and high-performance materials also brings new development opportunities for TMPA.

Conclusion

As an important chemical raw material, dimethylol butyric acid has an irreplaceable important position in modern industry due to its excellent physical and chemical properties and a wide range of applications. By optimizing the production process, improving product purity and stability, and expanding its application fields, TMPA's market prospects will be broader. Enterprises need to strictly control the quality in the production and storage process to ensure the safety and stability of products to meet the growing market demand.