Method for identifying residual trace NCO of high-viscosity PU resin

The invention provides a method for identifying residual trace NCO of high-viscosity PU (polyurethane) resin. The method comprises the following steps: S1, adding a polyamino oligomer with the mass fraction of 0.01-10% into the high-viscosity PU resin; and S2, observing whether gel appears or the vi...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GUAN ZHONGXIANG, MEI ZINENG, GUAN HANJIE, YAO WENPEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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