Study Of Polyurethane Elastomer Based On H₁₂MDI

Polyurethane elastomer (short for PU),which of its property is between rubber and plastic. The main chain of PU is consist of the soft segment and the hard segment. The soft segment can own the elasticity, strength and low tempreture property of PU material; meanwhile, the hard segment can own the hardness, strength and mode of PU material. PU has other property, such as oil resisivity, shockproof, low tempreture resistance, resistance to ozon, radioresistance, insulation and so on. In the industry of polyurethane, though the production of PU is low, it has great varieties, and its processing has a lot ways, PU can use in any kind of field.Hydrogenated diphenhl methane diisocyanate is shot for H12MDI, which is belonged to classify of ADI series that can't be changed to yellow. The H12MDI is first produced by Du Pont company. Yantai Wanhua which is the biggest seller for MDI is also researching for the H12MDI and recently it can provide for the c H12MDI.H12MDI is a typical representative of aliphatic isocyanate. Because of the similarit in the molecular structure between H12MDI and MDI, this article will research from the monomer,the prepolymer and the PU elastomer, and this research can be served as the basis for the future of H12MDI.With the development of modern science and technology, it is increasing from the properties of materials and other requirements. To serve for the different performance, different uses and different cost requirements, in this paper,from many extensive literature, we get some simple performance of PU elastomer of H12MDI, which is just laying the foundation for the further study.