Isocyanic Group in Curing Agent
Measurement of isocyanic group content is standardized by the below quoted test methods.
Sample liquid after dissolved in try toluene reacts with excessive di-n-butylamine, and back titrate residual di-n-butylamine with hydrochloric acid up to the endpoint.
The content of isocyanic group in curing agent is calculated from titration volume.
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