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http://dx.doi.org/10.7473/EC.2012.47.4.318

Study on Thermal and Physical Properties of One-component Curable Hybrid Polyurethane Elastomer  

Mok, Dong Youb (Gyro)
Kim, In-Soo (Korea Maritime University)
Kim, Dong Ho (Korea Institute of Footwear & Leather Technology)
Kim, Gu Ni (Korea Institute of Footwear & Leather Technology)
Publication Information
Elastomers and Composites / v.47, no.4, 2012 , pp. 318-328 More about this Journal
Abstract
In this study, the one-component curable polyurethane resin was manufactured using blocked isocyanate and hybrid technology. To prepare the one-component curable hybrid polyurethane, silica hybrids including hydroxyl group was synthesized, and the size, shape and distribution of hybrid particle in polyurethane resin were confirmed. Then the dissociation property, mechanical property and molding property of blocked isocyanate were investigated. The dissociation property of blocked isocyanate in one-component curable polyurethane became better as the heating temperature and treatment time increased. The synthesized silica hybrid had spherical appearance and size of 23~27 nm in diameter, and it was observed that the hybrid particles were homogeneously distributed in polyurethane structure. In the case of hybrid polyurethane, the mechanical property, anti-abrasion and thermal property were higher than those of general polyurethane, and it was observed that the mechanical property was maintained when the plasticizer was introduced.
Keywords
polyurethane; one-component curing; blocked isocyanate; silica hybrid;
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