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发明公开
CN102746725A 硅钢水溶性环保极厚绝缘涂层及其制备方法 有权

硅钢水溶性环保极厚绝缘涂层及其制备方法
摘要：
硅钢水溶性环保极厚绝缘涂层及其制备方法，其成分重量百分比为：有机树脂，含成膜树脂和交联固化树脂，10~60%，无机颜料，0.1~5%，填料，28~60%，助剂，包括，润湿剂0.1~4%，分散剂0.1~4%，消泡剂0.1~1%，pH调节剂0.1~1%，有机溶剂，1~15%，其余为纯水。本发明为一种无铬低VOC排放的C6水溶性环保涂层，其涂料固体份和无机颜填料含量高（固体份≥60%，无机颜填料含量≥40%，GB/T 1725-2007）、表面绝缘性能优异（≥1500Ω.cm2/片，ASTM A717），附着性优良（A级，Ф10mm圆棒，GB/T 2522-2007），叠片热压缩率低，耐腐蚀性好，能较好适应于大、中型电机剪裁冲压加工的硅钢。
摘要（英）：

A silicon steel water-soluble environment-friendly super thick insulating coating and a preparation method thereof. The insulating coating comprises the following components, by weight percentage: 10-60% of organic resin containing film-forming resin and crosslinking curing resin; 0.1-5% of inorganic pigment; 28-60% of filler; additives including 0.1-4% of wetting agent, 0.1-4% of dispersing agent, 0.1-1% of defoaming agent in and 0.1-1% of pH regulator; 1-15% of organic solvent; and the balance of pure water. The present invention provides a chrome-free C6 water-soluble environment-friendly coating with low VOC emission. The coating has high solid content and inorganic filler content (solid no less than 60%, inorganic filler content no less than 40%, GB / T 1725-2007), excellent surface insulation performance no less than1500 ohm.cm<2> / tablet (ASTM A717), good attachment (grade class A, phi 10mm rod, GB / T 2522-2007), low lamination heat compression rate, and good corrosion resistance, and is suitable for silicon steel processed with clipping and stamping by large and medium-sized motors.

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