Preparation of polyurethane foam and its application in municipal construction
The research progress in preparation of polyurethane foam and its application in municipal buildings are reviewed.The polyurethane foam material can be made more stable and delicate with blocked gel catalyst prepared by selecting excessive formic acid solution,N,N-dimethylcyclohexylamine and polar solvent.The polyurethane foam material is soaked in the mixed solution of epoxy resin three proofing paint and additives to remove the excess solvent,and then compressed,washed and dried to obtain a porous cushion,which is fixed between the road surface and the super hydrophobic coating to improve the road performance of the super hydrophobic coating.Polyethyleneimine is modified on the surface of foam via solution reaction method,then glutaraldehyde is added as cross-linking agent to prepare polyethyleneimine functionalized polyurethane foam adsorbent,which can be used for municipal and industrial wastewater treatment.
NETL
NSTL
万方数据
