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Preparation and characterization of phosphine oxide based polyurethane/silica nanocomposite via non-isocyanate route

Hoşgör, Zuhal and Kayaman-Apohan, Nilhan and Karataş, Sevim and Menceloğlu, Yusuf Z. and Güngör, Atilla (2010) Preparation and characterization of phosphine oxide based polyurethane/silica nanocomposite via non-isocyanate route. Progress in Organic Coatings, 69 (4). pp. 366-375. ISSN 0300-9440

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Official URL: http://dx.doi.org/10.1016/j.porgcoat.2010.07.010

Abstract

A novel carbonate-modified bis(4-glycidyloxy phenyl) phenyl phosphine oxide (CBGPPO) was synthe- sized to prepare phosphine oxide based polyurethane/silica nanocomposites. Spherical silica particles were prepared according to Stöber method and modified with cyclic carbonate functional silane coupling agent (CPS) to improve the compatibility of silica particles and organic phase. The cyclic carbonate- modified epoxy resins and silica particles were used to prepare hybrid coatings using hexamethylene diamine as a curing agent. The cupping, impact and gloss measurements were performed on aluminum panels, and the tensile test, gel content, thermal and morphological analyses were conducted on the free films. No damage was observed in the impact strength of the coatings. Incorporation of silica and CBGPPO into formulations increased modulus and hardness of the coating making the material more brittle. It was also observed that, the thermal stability of hybrid coatings enhanced with the addition of silica and CBGPPO.

Item Type:Article
Uncontrolled Keywords:Nanocomposites; Polyurethanes; Structure–property relations; Nanoparticles
Subjects:T Technology > TP Chemical technology > TP1080 Polymers and polymer manufacture
ID Code:15453
Deposited By:Yusuf Z. Menceloğlu
Deposited On:29 Nov 2010 14:45
Last Modified:25 May 2011 14:16

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