Content of isocyanate group in waterborne polyurethane prepolymer is tested with acetone as solvent, n-dibutylamine - toluene solution as reaction liquid and ethyl acetate as thinner.
对水性聚氨酯预聚体中异氰酸酯基团的容量测定进行了研究。
2
An epoxy resin, an organic secondary amine, a polyamide and a blocked isocyanate are selected as main materials to synthesize polymer resin with solid content of 70%.