Synthesis and Application of End-sealing Waterborne Polyurethane Curing Agent
End-sealing waterborne polyurethane curing agent is an important research content in the automobile industry at present.Its application in automotive filter paper can effectively improve the stiffness and water resistance of filter paper.Based on this,this paper studied toluene diisocyanate,polypropylene glycol as reaction raw material,NaHSO3 as a sealing agent,combined with the use of emulsifier prepared into a new type of water-borne polyurethane curing agent,with its simple synthesis method and low cost advantage,improve the quality of filter paper.
end-sealing type waterborne polyurethanecuring agentsynthesisfilter paper in automobile industry
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