Polyvinyl butyral (PVB) is a polymer produced by the polycondensation of polyvinyl alcohol and butyral. Polyvinyl butyral mainly exists in the form of polymer solution, which can be divided into film and Resin. Polyvinyl butyral products have high light transmittance, good softness, impact resistance, tensile strength and other properties. The downstream application fields are wide, involving automobile, aviation, construction, light industry, textile, electronics, photovoltaic and other application scenarios.
In recent years, driven by the development of downstream industries, the market demand for polyvinyl butyral continues to rise, and the industry has developed rapidly. In 2021, the global market sales of polyvinyl butyral will be about 15.64 billion yuan. With the development of the market, the production scale of polyvinyl butyral has gradually expanded. In 2021, the global production capacity of polyvinyl butyral industry will be about 900000 tons.
In the global market, the production capacity of polyvinyl butyral is mainly distributed in the United States, Europe and the Asia Pacific region. Among them, the United States is a major producer and consumer of polyvinyl butyral. The relevant production enterprises mainly include DuPont, shounuo, Eastman Chemical, etc. in Europe, the polyvinyl butyral production enterprises include Nobel in Germany, etc. in the Asia Pacific region, the polyvinyl butyral production enterprises include ponsei chemical Japanese Cola Li et al.
Polyvinyl butyral intermediate membrane is widely used in many fields, and China is a big consumer. In 2021, the consumption of polyvinyl butyral intermediate membrane in China was praised as 200000 tons. Domestic polyvinyl butyral intermediate membrane is mainly used in military industry, automobile, construction and other fields. As the core raw material of the polyvinyl butyral intermediate film, the production technology of polyvinyl butyral resin is high. Its industrial production processes include dissolution method and precipitation method. At present, dissolution method is the main method for foreign enterprises and precipitation method is the main method for domestic enterprises.
China's polyvinyl butyral industry started late. Due to the limitations of raw materials and technology, the high-end polyvinyl butyral market in China is still dominated by foreign enterprises, and the medium and low-end markets are basically replaced by domestic ones. In recent years, thanks to the acceleration of China's urbanization construction, China's polyvinyl butyral industry has developed rapidly. It is expected that the annual growth rate of China's polyvinyl butyral output will be more than 10.0% during the "14th five year plan".
Polyvinyl butyral has a wide range of applications. Thanks to the development of the terminal industry, the market demand for polyvinyl butyral is constantly released. However, due to the influence of technology, the global polyvinyl butyral market is relatively concentrated, and European, American and Japanese enterprises occupy the main share of the global market. China's polyvinyl butyral started late, and the demand for high-end products still depends on imports. In the future, Chinese enterprises still need to increase the research on its technology, process and performance, improve the product quality and output, and realize the comprehensive domestic substitution of polyvinyl butyral.
