Polyurethane industry chain and China's industrial pattern and application development trend combing

Polyurethane is a polymer resin condensed and polymerized by the basic chemicals isocyanate and polyol, which is an emerging organic polymer material and is known as the "fifth largest plastic". At present, polyurethane materials have been widely used in leather shoes, construction, furniture, home appliances and other fields, the specific application forms include wall insulation materials (hard foam), sofas and other fillers (soft foam), spandex (chemical fiber), plastic runway (elastomer), adhesives, coatings, etc., has become an indispensable and important material in life.

After decades of development, polyurethane materials have covered all aspects of production and life, but there is still broad room for development in the future.

1. Rigid foam is the largest single application form of polyurethane materials. In the field of building insulation material exterior walls, China's polyurethane rigid foam accounts for 7%, while the United States is 65%, and there is still a lot of room for improvement. Secondly, the rapid development of China's cold chain logistics will bring greater demand for hard foam.

2. Due to its strong comfort, polyurethane soft foam is suitable for sports equipment such as yoga mats and sports equipment such as boxing gloves, which is in line with the consumption upgrading and comprehensive fitness development trend of China's clothing industry.

3. The use of composite high-density polyether polyurethane materials can be prepared into materials with memory function, which have viscoelastic characteristics, and can automatically change shape with the change of head and neck position, and maintain a tight fit with the neck at any time to prevent the head from slipping and causing "falling pillows". In addition, memory-type materials are used in human body mechanics, can absorb impact forces, and have functions such as memory deformation and automatic shaping.

4. Polyurethane can be used to manufacture track bed curing materials, which can give full play to the advantages of good elasticity, stability and wear resistance of polyurethane materials, solve the technical problems of maintenance and repair of ballasted track bridge and tunnel sections, and have good vibration and noise reduction functions, providing a suitable rail structure form for urban rail transit.

5. Plastic runway is composed of polyurethane elastomer and other materials, with certain elasticity and can be colored, polyurethane plastic playground has the incomparable advantages of ordinary playground, is internationally recognized as the best all-weather outdoor sports venue material. With the continuous development of China's economy and society, the state has also increased investment in culture and education, and it can be expected that the plastic runway industry will maintain sustainable development momentum.