MDI, TDI and the polyurethane industry

《MDI, TDI and the polyurethane industry》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、1MDI,TDIandthepolyurethaneindustryMDIandTDIarehightonnageproducts,whichcompriseabout90%ofthetotaldiisocyanatemarket.ThepredominantuseofMDIandTDIisinthemanufactureofpolyurethanes.Polyurethanesareproducedbyreactingdiiso-cyanateswithpolyolsandotherchemicals.Therangeofpolyurethanetypes

2、,fromflexibleorrigidlightweightfoamstotough,stiffelastomers,allowsthemtobeusedinawidediversityofconsumerandindustrialapplications.Someexamplesare:Rigidfoam•thermalinsulationofbuildings,refrigerators,deepfreezeequipment,pipe-linesandstoragetanks;•buoyancyaidsinboatsandflotationequipme

3、nt;•packaging;•furniture;•equipmenthousings.Flexiblefoam•householdfurnitureincludingbedding;•automotiveseating;•cushioningfordiverseindustrialapplications;•textilelaminates.Integralskin,semi-rigidandlowdensitystructuralfoams•steeringwheels,headrestsandotherautomotiveinteriortrimcom

4、ponents;•furnitureelements;•sportsgoodssuchasskisandsurfboards.Elastomers•shoesoles;•vehiclebodypanels;•rollersandgearwheels;•conveyors;•sealantsfortheconstructionandautomotiveindustries;•fibres.Figure1.1showstheareasofapplicationasafunctionofstiffnessanddensityofeachpolyurethanepro

5、duct(Woods,1990).12MDIandTDI:Safety,HealthandtheEnvironment.ASourceBookandPracticalGuidePrintingrollersElastomericfibresPaintsSolidpolyurethaneplasticsThermoplasticandcastelastomersSolidpolyurethanesAdhesivesandbindersFabriccoatingsSyntheticleathersCarbumpersandotherexteriorpartsfo

6、rvehiclesStructuralfoamMicroShoesolingandcellularself-skinningarticleswithfoamsamicrocellularcoreFoamdensitySelf-skinningdecorativefoamsimulatedwoodfurnishingSelf-skinninginteriortrimandrigidmouldingsforvehicleandofficefurnitureHighMouldedchairshellsdensityCarpetbackingfoamsfoamsSe

7、mi-rigidfoamsforcrashpaddingandpackagingRigidinsulationfoamsLowdensityfoamsFlexiblefoamsforbeddingandupholsteryPackagingfoamsVerysoftelastomersStiffelastomersandplasticsRigidplasticsIncreasingpolymerstiffnessFigure1.1Propertymatrixofpolyurethanes(figurebycourtesyofHuntsmanPolyuretha

8、nes)22002000MDITDI18001600