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Xianning premium BASF MDI prices

Release time: 2020-02-09 02:49:00

The newly developed acrylic polyurethane paint uses biuret as a curing agent, and its application value in automotive repair paint is quite reliable. Especially for light cars, large passenger cars and vans, the coating function in vehicle processing is very worthy of recognition, and the market prospect is quite considerable.

Midstream products of liquefied MDI include polyisocyanates, polyether polyols, polyester polyols, catalysts, additives and solvents.

The properties of the cured product can be adjusted by adjusting the ratio of isocyanate and polyol to achieve high adhesion to the substrate, excellent water resistance, oil resistance, and chemical resistance. Polyurethane adhesives are mainly used in packaging, construction, wood, automotive, shoemaking and other industries.

It is understood that polyurethane insulation materials have entered the field of green building materials. A few days ago, Pan Aihua, Deputy Director of the Raw Materials Department of the Ministry of Industry and Information Technology, went to the China Polyurethane Industry Association for a survey, and held a discussion with the person in charge of the association on the issue of incorporating polyurethane insulation materials into green building materials projects. Pan Aihua requested the industry association to cooperate with the green building materials promotion and application coordination group jointly established by the two ministries and commissions to strengthen the promotion and application of polyurethane insulation materials in the field of green buildings and further tap the energy-saving potential of buildings. The Ministry of Industry and Information Technology will also cooperate with relevant departments and key provinces and regions to support the technological progress and technological transformation of key polyurethane insulation materials enterprises.

According to estimates, the market size of polyurethane coatings is about 3.4 to 3.7 million tons, of which about 60% is consumed in Asia Pacific, about 20% in Europe, followed by North America (15%), and the remaining 5% is mainly in Central and South America. consumption. It is expected that by 2020, the output will reach nearly 4 million tons or more. The largest consumer of polyurethane coatings is the wood and furniture industry, with nearly 30%. The automotive OEM division accounts for 25%. The share of these two end industries varies by region. The five leading polyurethane coatings producers are AkzoNobel, PPG Industries, Sherwin-Williams, Axalta and Asian Coatings. These five companies together have a 50% market share.

Polyurethane foam is more rigid, and the tiny holes in it are no longer connected but isolated from each other. What is the use of such foams? We know that if you want to block the spread of heat, no material can be as effective as air, and the thermal insulation capacity of carbon dioxide in air is much better than other components such as oxygen and nitrogen. If we use carbon dioxide to isolate carbon dioxide in tiny spaces and prevent them from flowing to each other or escaping to the outside world, such polyurethane foam has good heat insulation ability almost comparable to air, which is difficult for other materials to match.

MDI and TDI are substitutes for each other, both are raw materials for the production of polyurethane. The price of MDI is slightly lower and the toxicity is lower than TDI. However, the density of MDI is greater than that of TDI system. The polyurethane product formed by MDI has relatively good moldability.

The performance of waterborne polyurethane coatings still has certain limitations, and insufficient water resistance is one of the most important factors affecting the application of waterborne polyurethane coatings in practice.

Polyurethane waterproof coating is resistant to aging, corrosion, heat, cold, high elongation, good elasticity, acid and alkali resistance, strong adhesion, high adhesion, and is extremely strong on the surface of concrete, wood, metal, ceramics, etc. Adhesion and cohesion. The waterproof layer and the base layer can form a whole, not empty, and when there is an accidental water leakage phenomenon, use this coating to scratch and repair again, saving time and effort. This polyurethane waterproof coating construction process is suitable for various roof waterproofing projects with protective layers, toilets, underground building waterproofing projects, etc.

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