高固体含量不含TEA的水性聚氨酯分散体

High-Solids TEA-Free WaterbornePolyurethane DispersionsMark WolfingerTechnical Marketing ManagerLubrizol Advanced Materials, Inc.•Introduction•Sustainability Targets•Benefits of High Solids•Introduction to High Solids Polyurethane Dispersions•HSPUD1•HSPUD2•HSPUD3•Conclusions2Agenda•Polymer made from segments of amorphous (soft) blocks and crystalline (hard) blocks•Tend to have better toughness and resistance properties compared to polyacrylates•Performance is strongly influenced bysoft segment•Polyurethane polymer chains can be modified to be dispersible in water–formingpolyurethane dispersions3Introduction: What is a Polyurethane?SoftHardCrystallineAmorphous4Polyurethane Soft SegmentsPolyether polyolGood hydrolytic stability,Poor UV resistancePolycarbonate polyolGood UV and hydrolytic stability, highprice and limited composition variabilityPolyester polyolGood mechanical properties andUV resistance, Poor hydrolytic stabilityPolyamide polyolExcellent mechanical propertiesHydrolyticstab