Synthesis and Characterization of one Component Heat Cured Polyurethane-Acrylate Sealants

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Abstract:

Stable one component heat cured polyurethane-acrylate (PUA) sealants were synthesized using dicumyl peroxide (DCP) as an initiator with high decomposition temperature. The PUA sealants were synthesized through the reaction of hexamethylene diisocyanate (HDI) with poly(ethylene buthlene glycol adipate) and 2-hydroxyethyl methacrylate (HEMA), and the PUA sealants were stably stored under accelerated aging test at 60°C . The structure of polyurethane prepolymer, PUA prepolymer, PUA sealant and its cured film were characterized by FT-IR, 1H-NMR and Raman spectra.

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Periodical:

Advanced Materials Research (Volumes 194-196)

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2452-2457

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February 2011

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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