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[Chemical Knowledge]：What are the upstream raw materials for TPU and what are the downstream products?

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TPU (thermoplastic polyurethane) is a widely used chemical raw material, with high strength, high toughness, wear resistance, oil resistance, aging resistance and other excellent characteristics. In the upstream and downstream industry chain of TPU, a variety of related products are involved. This article will detail the upstream and downstream associated products of TPU.

1. TPU upstream related products

1. Polyol
polyol is one of the main raw materials in TPU production, commonly used polyols include ethylene glycol, propylene glycol, butylene glycol and so on. The choice and ratio of the polyol affects the properties and processability of the TPU.
2. Diisocyanate (DI)
DI is another important raw material in TPU production. Commonly used DI includes toluene diisocyanate (TDI), diphenylmethane diisocyanate (MDI), etc. The choice of DI will affect the hardness, strength, wear resistance and other properties of TPU.
3. Chain extender
chain extender is an important additive used to adjust the molecular weight and performance of TPU, commonly used chain extenders include ethylene glycol, glycerol, diethylene glycol, etc.

2. TPU Downstream Related Products

1. Shoe Material
TPU has a wide range of applications in the field of shoe materials and can be used to make soles, uppers, shoelaces, etc. TPU has excellent wear resistance, impact resistance and comfort, which can improve the service life and wearing comfort of shoes.
2. film
TPU film has the advantages of high strength, high toughness, waterproof and breathable, and can be used to make various packaging bags, protective films, etc.
3. Pipe
TPU pipe has the advantages of oil resistance, acid and alkali resistance, pressure resistance, etc., and can be used to transport various chemical media.
4. Automotive parts
TPU can be used to make automotive sealing strips, oil pipes, air pipes and other parts, with excellent oil resistance, aging resistance and weather resistance.
5. Wire and cable
TPU can be used to make wire and cable sheath and insulation layer, with wear resistance, low temperature resistance, oil resistance and other advantages.

3. the development trend of TPU upstream and downstream related products

With the continuous progress of science and technology and the expansion of application fields, TPU upstream and downstream related products are also developing. In the future, TPU upstream and downstream related products will show the following development trends:

1. Green environmental protection
With the improvement of environmental awareness and the promotion of sustainable development strategy, TPU upstream and downstream related products will pay more attention to environmental protection and sustainability. In the future, the production process will pay more attention to reducing waste emissions and improving resource utilization.
2. High-performance
With the continuous expansion of application fields and the improvement of material performance requirements, TPU upstream and downstream related products will pay more attention to high-performance. In the future, more TPU materials with excellent properties will be developed to meet the needs of different fields.
3. Intelligent manufacturing
With the development of industrial 4.0 and intelligent manufacturing, the production of TPU upstream and downstream related products will also pay more attention to intelligent manufacturing. In the future, more advanced production technology and equipment will be adopted to improve production efficiency and quality.

In short, TPU is an important raw material for the production of chemicals, and its upstream and downstream related products are widely used in various fields. In the future, with the continuous progress of science and technology and the expansion of application fields, TPU upstream and downstream related products will continue to develop and grow, providing more high-quality material support for the development of various fields.

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