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Pm200 44V20 Wanhua Polymeric Mdi Polymethylene Polyphenyl Isocyanate1
Plastic PolymerPolyurethane Foampm200Isocyanate
Yantai Shunda Polyurethane Co., Ltd.
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Product Description WANNATE? PM-200ApplicationWANNATE?PM-200 is a diisocyanate-diphenylmethane(MDI)-based compositioncontaining some higher functionality isocyanates. The functionality is about 2.6-2.7. It is abrown liquid at ambient temperatures.WANNATE? PM-200 can be widely used in the production of rigid PU foamheat-insulating materials; also used in isocyanurate foam, paints, adhesives, structural foam,cellular integral skin foam, automotive bumper and interior parts, high-resilience foam andsynthetic wood, etc. Due to its unique composition structure, WANNATE? PM-200 canprovide better flowability. It is, therefore, particularly suitable for the production whichrequire strict flowability of systems.Typical Physical and Chemical Properties Test Item(s)Specification(s)AppearanceBrown LiquidViscosity(25oC)/(mPa·s)150-250NCO Content/%30.5-32.0Density (25oC)/(g/cm3 )1.220-1.250Acid Content/%≤0.030Hydrolysable Chlorine/%≤0.20Package(s)210L iron drums, 250kg/drumStorageSince WANNATE? PM-200 is a reactive chemical, reaction with atmospheric moisturehappens easily and leads to the formation of insoluble ureas and carbon dioxide gas, whichcan result in pressure build-up in closed containers and viscosity increase of the product.Containers must therefore be absolutely dry and carefully sealed after congested withnitrogen.Containers of WANNATE? PM-200 should be kept properly closed and stored indoors atambient temperature (15-35oC) in a well-ventilated area. Storage at low temperature (below5oC) may lead to some crystallization; this material must, therefore, be protected from frost.If crystallization does occur, the material should be heated by rolling the drum in a hot airoven at 70-80oC to melt it out, and should then be thoroughly agitated before use. Melting ina water bath is not recommended.extended storage at temperatures above 50oC is not recommended to prevent from theformation of insoluble solids and viscosity increase.Shelf LifeUnder recommended storage conditions, the shelf life of WANNATE? PM-200 is one yearsince the date of production.
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