Abstract
含铬硅钢绝缘涂料的应用性质主要是以铬酐为主成膜物质，将微纳米尺度氧化镁分散在水性树脂中，从而使其在硅钢表面形成致密的绝缘氧化膜。本文通过对三种来源不同的含铬硅钢绝缘涂料的物理性质、耐腐蚀性与绝缘性测试、粒径测试、红外光谱测试以及成分分析，得出三种含铬硅钢绝缘涂料的物理性能一致。其主要组分包括三氧化铬、氧化镁和水性丙烯酸树脂及相关助剂，涂覆在硅钢表面的固体颗粒粒径在6~9 nm之间。 The application of chromium-containing silicon steel insulating coatings lies in employing chromic anhydride as the main film-forming material and the micro-nano-scale magnesium oxide dispersed in the water-based resin to form a dense insulating oxide film on the silicon steel surface. In this paper, the physical properties, corrosion resistance-insulation performance test, particle size distributions, infrared spectrum and chemical composition of three kinds of chromium-containing silicon steel insulation coatings were analyzed. It is concluded that the physical properties of the three kinds of chromium silicon steel insulation coating are in accordance with each other, whose main components include chromium trioxide, magnesium oxide and water-based acrylic resin and related additives, and the size of solid particles coated on the silicon steel surface is between 6 and 9 nm.
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