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http://dx.doi.org/10.12925/jkocs.2014.31.4.595

Effects of Fume silica on synthesis of New Austria Tunnel Method Resin for new material in space aviation  

Kim, Kijun (Dept. of Chemical Engineering, Daejin Uni.)
Lee, Jooho (University of Southern California, Dept. of Chemistry, Locker Hydrocarbon Institute)
Park, Taesul (Dept. of Environment Engineering, Daejin University)
Lee, Joo-Youb (Dept. of Disaster Manag. & safety Engineering, Jungwon Uni.)
Publication Information
Journal of the Korean Applied Science and Technology / v.31, no.4, 2014 , pp. 595-601 More about this Journal
Abstract
The microstructures of NATM were examined by SEM, FT-IR spectra, tensile properties, mole % of [NCO/OH], and particle size analyzer. Growing concerns in the environment-friendly industries have led to the development of solvent-free formulations that can be cured. We had synthesized NATM(New Austria Tunnel Method) resin having the ability to protect stainless steel against corrosion. Comparing with general NATM resin and coatings, this resin that synthesized with polyurethane and epoxy was highly stronger in intensity and longer durability. Hybrid resin was composed of polyols, MDI, epoxy, silicone surfactant, catalyst and crosslink agent, and fillers. Moreover, fillers such as fume silica not only accelerated the curing rate but also improved the physical property as thermal barriers. The rigid segments of synthetic resin in mechanical properties were due to fume silica and the increase the mole% of [NCO/OH] for corrosion protection. In conclusion, the hybrid resin microstructure with crosslink agent and fume silica are good material for thermosetting coating of metal substrates such as stainless steel.
Keywords
polyurethane resin; NATM; stainless coating; crosslink agent; thermoset; corrosion protection;
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