2013•Advanced materials researchOpen access

Polymerization and Properties of New Spray Polyurea Series Containing Isophorone Diisocyanate (IPDI)

Lian Liu, Li Na Heng, Qiu Zhi Zhai, Pei Wang

Abstract

Polyureas series were synthesized via two-step solution process by reaction of sophorone diisocyanate (IPDI), amine terminated polyether (Jeffamine D-2000) with different chain extenders including dimethyl-thiotoluene diamine (E300), 1,6-hexamethylene diamine (HDA) and 4,4-diamino cyclohexylmethane (H12MDA). The structure of polyureas was characterized and thermal properties were measured by TGA and DSC. The influence of diamine chain extenders on gel time of polyurea was investigated. The gel time was prolonged to 753s using the E-300 as the chain extenders.

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Key concepts: Polyurea, Isophorone diisocyanate, Diamine, Polymer chemistry, Isophorone, Materials science, Hexamethylene diisocyanate, Amine gas treating