Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 54, Issue 28, Pages 7102-7112Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ie504737g
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Funding
- National Natural Science Foundation of China [51473107]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Science and Technology Support Plan of Jiangsu Province, China [BE2013848]
- Nano Special Technology of Suzhou City, China [ZXG2013007]
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The biggest obstacle to fabricate permanent magnet synchronous wind-driven generators (PMSWG) is lack of high-performance resins for vacuum pressure impregnation (VPI) technique. A novel resin system was developed by hybridizing epoxy resin/anhydride (EA) with specially modified silica (mSiO(2)) and grinding technology. EA/mSiO(2) resins have good processing features for VPI technique reflected by suitably low viscosity and very long work life (>= 24 months), and they also show much higher impact and flexural strengths, corona resistance, and thermal stability than EA resin. For the EA/mSiO(2) resin with 9 wt % mSiO(2), its impact strength and corona resistant life are 25.2 kJ/m(2) and 806 min, more than 3.4 and 16.1 times those of EA resin, respectively. Simulation stator coils impregnated with EA/mSiO(2) resins exhibit much better electrical insulation than those with EA resin, demonstrating that EA/mSiO(2) resins are the right candidate for fabricating PMSWG and other high-voltage motors, generators, and transformers.
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