Citation: Qing Ye ZHOU, Mou Dao SONG, Bang Hua ZHANG, Bing Lin HE. PREPARATION OF POLYURETHANE EMULSION[J]. Chinese Chemical Letters, ;1995, 6(7): 625-626. shu

PREPARATION OF POLYURETHANE EMULSION

Institute of Polymer chemistry, Nankal University, Tianjin 300071

Received Date: 8 February 1995

A technique has been developed for preparing stable polyurethane emulsion which provides thermosetting film without the use of emulsifying agents.The reaction of an isocyanate terminated prepolymer with a stoichiometric excess of diethylenetriamine in the presence of ketones yields the poly(urethane-amine).Then the free amino group is generated when the polymer is treated with epichlorohydrin and the reaction occurs between them, and a stable self-emulsifiable thermosetting urethane emulsion can be obtained.This paper also presents the effect of the curing temperature and time on the typical mechanical properties of the films from this urethane emulsion.
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