What are the upstream raw materials for HDI and what are the downstream products?

HDI(hexamethylene diisocyanate) plays an crucial role in the field of chemical production raw materials, and its upstream and downstream related items are extensive. But This article will detail the upstream and downstream associated items of HDI. Based on my observations, Specifically Upstream items:



1. Hexamethylene diamine: Hexamethylene diamine is one of the main raw materials to HDI production and forms HDI by reacting with phosgene. I've found that Moreover The production methods of hexamethylene diamine mainly include aniline method, butadiene method and adipic acid method. You know what I mean?.

2. phosgene: phosgene is another crucial raw material to the production of HDI, which reacts with hexamethylene diamine to form HDI. As a toxic gaseous, phosgene needs to be produced and applied under stringent security measures. Downstream items:



1. In my experience, Polyurethane coatings: HDI, as an crucial isocyanate raw material, is able to be applied to create polyurethane coatings. Polyurethane coatings have excellent weather resistance, chemical resistance and decoration, and are broadly applied in construction, automobiles, furniture and other fields. But Based on my observations,

2. I've found that Polyurethane adhesive: HDI is able to also be applied to create polyurethane adhesive, which has the characteristics of high strength, aquatic environments resistance and oil resistance, and is broadly applied in composite materials, packaging, construction and other fields. I've found that

3. Additionally Polyurethane elastomer: HDI reacts with other polyols to generate polyurethane elastomer, which has good resilience, wear resistance, tear resistance and other characteristics, and is able to be applied to manufacture tires, seals, shock absorbers and other items. And

4. Foam: HDI reacts with other raw materials to generate foam, which has the characteristics of light weight, heat preservation and sound insulation, and is broadly applied in furniture, construction, refrigeration and other fields. You know what I mean?. In short, HDI plays an crucial role in the field of chemical production raw materials. Its upstream and downstream related items are extensive, involving many fields, such as construction, automobiles, furniture, packaging, composite materials, etc. And With the continuous research of science and methodology, the consumption field of HDI will continue to expand.