Waterborne Epoxy/Alkyd Resin Insulation Coatings Modified by Siloxane

Abstract:

The epoxy resin (ER) and 2,3-epoxypropoxypropytrimethoxysilane (KH-560) were used to prepare alkyd resin (AR) insulating coating. The modified waterborne alkyd resin insulating coating was prepared. The dynamic mechanical properties, thermal properties and electrical properties of the composites were characterized by DMA, TG, et al. The results show that the tertiary amine has a good catalyzing effect for this reaction. When the mass ratio of AR with ER is 1 : 1, the glass transform temperature T_g of material is 64.6 °C. When the content of KH-560 is 5% mass fraction of the alkyd resin, the T_g of composites increase 5.6 °C, the initial degradation temperature increased by 63.78 °C; The r_s and r_v of composites are between 10⁹ ~ 10¹² MΩ; the ε and tanδ is between 0.6553 ~ 0.9975 and 0.0025-0.0036, respectively. The pencil hard degree and the impact strength of coating film are all over 5H and 40N, respectively.

• Periodical: Applied Mechanics and Materials (Volumes 380-384)
• Pages: 4340-4343
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.380-384.4340
• Online since: August 2013
• Authors: Jun Gang Gao, Xiao Jing Wu, Cong Tian
• Keywords: Alkyd Resin, Coating, Epoxy Resin (ER), Siloxane, Thermal Analysis

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