[Chemical Knowledge]：The nature, use, upstream and downstream raw materials, storage methods, methyl methacrylate is dangerous.

Nature

Acrylonitrile Methyl Acrylate (ANMA) is a chemical compound with unique chemical and physical properties. Its chemical formula is C5H7NO2 and its molecular weight is 113.11g/mol. Propyl methacrylate nitrile is a colorless liquid with a pungent odor, a boiling point between 90-100°C and a density of 0.98g/cm³. It is easily soluble in many organic solvents, such as alcohols, ketones and benzene, but its solubility in water is low. The double bonds and nitrile groups in its molecular structure give it a high degree of reactivity, making it exhibit good reactivity in a variety of chemical reactions.

Use

Propyl methacrylate nitrile is mainly used in the manufacture of polymers and copolymers, especially in the production of special plastics, synthetic fibers, coatings and adhesives. It can be copolymerized with other monomers such as styrene, butadiene and acrylic to produce copolymers with excellent properties. These copolymers have significant advantages in heat resistance, chemical corrosion resistance and mechanical strength, and are widely used in the automotive, construction, electronics and textile industries. Propyl methacrylate nitrile is also used in the preparation of modified resins, rubber auxiliaries and water treatment chemicals.

Upstream raw materials

Propyl methacrylate nitrile is usually produced from propylene, hydrocyanic acid and methacrylic acid. Propylene is an important petrochemical product that can be obtained by petroleum cracking and is a key component of propyl methacrylate nitrile. Hydrocyanic acid is prepared by methane ammoxidation, and its production process needs to be strictly controlled to prevent its toxic effects. Methacrylic acid is usually obtained by the methyl esterification of acrylic acid and is an essential precursor for the preparation of propyl methacrylate nitrile. These raw materials undergo a series of chemical reactions, such as addition, dehydration, etc., to eventually form propyl methacrylate nitrile.

Downstream Products

Downstream products mainly include a variety of polymers and copolymers, which have a wide range of applications in different industrial fields. For example, copolymers of propyl methacrylate nitrile with styrene and butadiene are commonly used in the manufacture of automotive parts, such as bumper and instrument panel housings. These copolymers have excellent mechanical properties and heat resistance, which can improve the service life and safety of automobile parts. In the coating industry, the coatings produced by copolymerization of propyl methacrylate nitrile with other monomers have excellent adhesion and corrosion resistance, and are widely used in building surfaces and metal anti-corrosion coatings. In the textile industry, propyl methacrylate nitrile copolymers are used to produce high-strength synthetic fibers, which significantly improve the wear resistance and service life of textiles.

Production process

The production process of propyl methacrylate nitrile involves a multi-step chemical reaction, mainly including the addition reaction of propylene and hydrocyanic acid to produce acrylonitrile, and then esterification reaction with methacrylate to produce propyl methacrylate nitrile. The whole process needs to be carried out under strict temperature and pressure conditions, and a catalyst is needed to improve the reaction efficiency and yield. Commonly used catalysts include acidic catalysts and basic catalysts, which play a role in accelerating the reaction and improving selectivity during the reaction. A series of separation and purification steps, such as distillation and extraction, are also required in the production process to ensure the purity and quality of the final product.

storage method

Due to the high reactivity and certain toxicity of propyl methacrylate nitrile, its storage and handling require special attention. It should be stored in a cool, dry, well-ventilated warehouse, away from direct sunlight and high temperature environment. Storage containers shall be made of corrosion resistant materials such as stainless steel or special plastics to prevent them from reacting with the container. The storage area shall be provided with fire protection equipment and leakage emergency treatment device to cope with possible fire and leakage accidents. During storage, the tightness of the container and the stability of the product should also be checked regularly to ensure its safety and quality during storage.

Safety and environmental protection

Safety and environmental protection are particularly important in the production and application of propyl methacrylate nitrile. Due to their toxicity and volatility, operators should wear appropriate protective equipment, such as gloves, goggles and respirators, to prevent damage to the skin, eyes and respiratory system. Effective ventilation and waste gas treatment systems should be set up in the production process to reduce the emission of harmful gases. Waste liquid and residue should be treated in accordance with hazardous waste treatment regulations to avoid pollution to the environment.

Market Prospects

With the development of industry and technology, the market demand of propyl methacrylate nitrile is gradually increasing. Especially in the field of high-performance materials and environmentally friendly materials, its application prospects are very broad. With the increasing demand for high-performance plastics and synthetic fibers, the market size of propyl methacrylate nitrile is expected to continue to expand. With the increasingly stringent environmental regulations, low volatile organic compound (VOC) coatings and adhesives produced with propyl methacrylate nitrile will be more popular, further promoting its market demand.

Conclusion

As an important chemical raw material, propyl methacrylate nitrile has become an important part of modern chemical industry due to its unique properties and wide application prospects. By strictly controlling the production process and storage conditions, it can ensure its safety and effectiveness in various application fields. With the continuous growth of market demand and technological progress, the application fields and market prospects of propyl methacrylate nitrile will be broader, providing new impetus for the development of the chemical industry.