The polyurethane industry in China has a considerable foundation, and its products have penetrated into all fields of people's clothing, food, housing and transportation, but the product structure needs to be further adjusted. As people's requirements for clothing and fabrics are getting higher and higher, the differentiation of spandex households.
As an emerging textile material with high added value, China's spandex manufacturing industry will be in an extraordinary period in a few years after the rising demand and the continuous improvement of product grade.
China's polyurethane foam industry has developed for more than 40 years, and the current annual output has reached 400,000 tons, accounting for more than 60% of the total output of polyurethane vinegar. But there is a big gap between China and developed countries.
Foreign rigid foam is mainly consumed in construction industry, accounting for more than 50% of the consumption of rigid foam; China is mostly used in refrigerators, cold storage, for construction insulation is still in the initial stage.
At present, China should speed up the development of high flame retardant and low smoke polyurethane foam plastics, and strengthen the research and application of foaming and high load bearing foam plastics.
Medical polyurethane material has good biocompatibility, anticoagulant and excellent physical properties, but it is not used very much in the field of medicine and biology, and there are not many companies that can produce medical polyurethane material in China.
In addition, with the rapid development of polyurethane industry, a large number of polyurethane waste needs to be recycled. The recycling and utilization of polyurethane is another point of the current development. The recycling and utilization of polyurethane is beneficial to environmental protection and resource reuse.
At present, there is no simple solution to the recycling of polyurethane, the main reason is that the physical and chemical properties of polyurethane raw materials are various, which leads to the specificity of polyurethane products.
With a large amount of polyurethane, it has a good market prospect for waste recycling. Developing an economical and feasible recycling method has become a research hot spot in the industry.
Generally speaking, the production technology level of polyurethane industry in China has been greatly improved. However, as the core raw materials of polyurethane industry, isocyanate and polyether polyol industries still need to be further developed.
With the continuous development of China's economy, China's polyurethane industry will enter a stage of rapid development, forming an industry with complete raw materials, auxiliaries, products and processing machinery, advanced technology and reasonable production structure, and becoming an important new material industry sector in China's national economy.