The main raw materials of polyurethane, TDI and MDI, are quite different due to differences in structure, performance and subdivision. Polymeric MDI is mainly used in polyurethane rigid foam and semi-rigid foam, which are used in insulation materials, automotive trims, and construction industries. TDI is mainly used in polyurethane soft foam and is used in furniture cushioning, sound-absorbing materials, toys and other industries. At the same time, due to the highly toxic nature of TDI, its application is limited to a certain extent and is far less widespread than MDI.
MDI prices rose significantly in 2016, completely reversing the continued decline in the market in 2015. The main reason for the rise in the market was that domestic polymeric MDI manufacturers gave full play to their oligopoly advantages and limited quantities. supply, and a significant increase in the listing settlement price. Another major reason is the accident that occurred during the maintenance of Wanhua Chemical’s Yantai MDI device in September. Entering 2017, polymeric MDI continues to rise. Currently, domestic and foreign chemical giants are adjusting prices. Wanhua Chemical will increase the price of polymeric MDI in the Asia-Pacific region (excluding mainland China and Japan) by US$200-300/ton.
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