Polyurethanes are collectively known as poly(ester) esters and are collectively referred to as macromolecular compounds that contain repeated **** ester groups in the main chain. Its raw materials can be divided into isocyanates such as MDI and TDI, polyols such as PO and PTMEG and additives such as DMF. At present, the key raw material for polyurethanes in China, MDI diphenylmethane diisocyanate and TDI** diisocyanate, have excess capacity and output, and the supply of raw materials is sufficient; in addition, polyurethane downstream products will benefit from the domestic demand market, resulting in a new batch of economic growth. point.
The downstream products of polyurethanes mainly include two systems, foam systems and case systems. The foam systems mainly include polyurethane rigid foams and soft foams. The rigid foams include house wall surface thermal insulation spray spray foam, pipe insulation materials, etc. The soft foams mainly include furniture and Various transport materials for vehicles, CSAE system is mainly used to produce coatings, adhesives, sealants and elastomers. It can be seen that polyurethanes have a wide range of applications. In addition to the traditional polyurethane coatings and polyurethane insulation materials, the current promising fields include: high-speed rail, urban railroad damping and noise-reducing polyurethane elastomers, wind energy, solar energy and other new energy polyurethanes. Elastomers. From a long-term perspective, polyurethane is also an important chemical new material industry advocated by the country.
According to a research report from Research and Markets, the global polyurethane market demand in 2010 was 13.65 million tons, and it is expected to reach 17.94 million tons by 2016, with a compound annual growth rate of 4.7%. In terms of value, it is estimated to be 330.33 billion U.S. dollars in 2010 and will reach 55.48 billion U.S. dollars by 2016, with a compound annual growth rate of 6.8%.
At present, polyurethane materials have become indispensable chemical materials in human life. According to statistics, the demand for polyurethanes now grows 1.5-2 times that of the world economy. Since 2000, the global polyurethane application volume has basically doubled. In 2010 alone, the total amount of polyurethanes reached 18.70 million tons. At the same time, the output of polyurethane products in China has grown rapidly. In 2000, the annual output of polyurethane products was only 1 million tons, in 2007 it was about 3.5 million tons, and in 2010 it reached 6.5 million tons.
In recent years, with the acceleration of urbanization in China, great efforts have been made to promote the development of the automotive and home appliance industries. Today, China's auto industry has maintained a growth rate of over 15% for many years, surpassing the United States and Japan to become the world's largest auto market. The lightweight and low fuel consumption requirements of automobiles are the necessary ways for the development of the current automotive market. Polyurethane automotive interiors can play an important role in reducing weight, saving energy, and improving durability of automobiles. The strong development of the industry will bring huge market opportunities for the polyurethane industry.
Building materials industry analysts believe that in the early stage of social construction in our country, due to various technical and other reasons, most buildings are energy-intensive buildings. In northern China, where winters are relatively cold, only about 18 million tons of coal is consumed annually for heating purposes. In summer, temperatures are generally high throughout the country, and all power departments are still unable to meet their peak demand. Energy conservation is imperative. Building energy efficiency will bring tremendous opportunities to the polyurethane industry. It is understood that the specific goals of building energy conservation issued by the Ministry of Housing and Urban-Rural Development are: By 2010, new energy-saving buildings in cities and towns will achieve 50% energy saving, and by 2020 new buildings will be built in northern and coastal economically developed areas to achieve energy savings of 65%. China has the largest construction market in the world. At present, more than 95% of our new buildings are still high-energy buildings. Without effective energy-saving measures, 50% of the country's energy will be consumed in buildings by 2020.
In the global market, building insulation materials account for more than half of the space required for polyurethanes. Extensive test evidence from international and domestic research institutes confirms that polyurethane hard foam materials are significantly superior to other types of thermal insulation materials in terms of thermal conductivity, energy conservation, thermal insulation, and construction performance. At present, the proportion of polyurethanes in existing buildings in China is less than 10%. With the improvement of the performance requirements of thermal insulation materials and the policies of the country, it is believed that polyurethane materials have a huge market potential in the construction market.
In the area of ​​new energy, polyurethane composite materials can also be used as fan blades to overcome the shortcomings of epoxy composite materials; polyurethane is also an indispensable new material for the development of new solar energy sources, such as thermoplastic polyurethane film new materials for solar cells and solar photovoltaic modules. Polyurethane material for plates and backings.
In addition, polyurethane coatings are also an important downstream product for the development of the polyurethane industry. Polyurethane coatings are coatings with polyurethane resin as the main film-forming substance. At present, the application areas of polyurethane coatings mainly include: vehicle painting, shipbuilding, timber, building painting, anti-corrosion coating, aircraft, plastics, rubber, leather surface coating. Among them, water-based polyurethane coatings use water as the main medium and have the characteristics of low VOC content, low or no environmental pollution, and easy construction. It is one of the main substitutes for solvent-based coatings.
In summary, the polyurethane industry has a good market prospect. Looking across the world, the polyurethane industry in western developed countries has entered a period of mature development and entered the stage of innovation research and development. The Asian market has grown rapidly. Many multinational chemical companies have shifted their business focus and R&D centers to the Asian and even Chinese markets, creating new business opportunities for domestic polyurethane companies.
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