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西宁地坪漆|西宁涂料:环氧地坪的防锈颜料有哪些
2013/8/8 15:17:40

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   环氧地坪的防锈颜料品种也不少,按其性质可分为物理性能防锈颜料和化学性能防锈颜料两类.防锈颜料是防锈漆的重要组成部分.物理防锈颜料是一类本身化学性质较为稳定的颜料,它们是靠本身的物理性能、化学性能稳定,质地坚硬,颗粒细微,有优良的填充性,通过提高漆膜的致密度,降低漆膜的可渗性起到防锈的作用.氧化铁红就属这类物质.而金属铝粉的防锈性是由于铅粉具有鳞片状结构、形成漆膜紧密,还有较强的反射紫外线的能力,可提高漆膜抗老化的能力.化学性防锈颜料,如红丹、锌黄、铅酸钙、锌粉、铅粉等,都属这类防锈颜料.
  (1)红丹也叫铅丹,是一种使用历史悠久的防锈颜料,它与亚麻油配制的防锈漆,其防锈性能很好,它对钢铁防锈表面的处理要求不高,在有残留的氧化皮表面上仍具有很好的防锈效果.但缺点是有毒性,易引起中毒;因铅的密度大,易沉淀;不能用于轻金属防锈,因为易发生电化学腐蚀;红丹防锈漆涂后要及时涂上面漆,不然底漆易发白和粉化.
  (2)锌黄是属于保养底漆最适宜的防锈颜料,也是一种良好的轻金属的防锈颜料,对大气的曝露效果好.(3)铅酸钙、铅粉等均属铅系列的颜料,因毒性大,同时还要消耗大量的铅金属,从发展的观点出发,应逐步被其他的防锈颜料所替代.
     Epoxy floor antirust pigment variety are many, according to its nature can be divided into physical properties of antirust pigment and chemical properties of antirust pigment. Antirust pigment is an important component of the antirust paint. Physical and chemical properties of antirust pigment is a kind of itself more stable pigments, they are by itself physical properties, chemical properties of stability, quality of a material is solid, subtle grain, has excellent filling, by improving the film density, lower coating permeability antirust effect. Iron oxide red is belong to this type of material. The anti-rust property of m e t al aluminum powder is due to the lead powder with scaly structure, forming film, and reflection ultraviolet ability, can improve the ability of film aging. Chemical antirust paint, such as lead red, zinc chrome yellow, lead acid calcium, zinc powder, lead powder, etc., all belong to this type of antirust paint.西宁地坪漆|西宁涂料
    (1) red lead or red lead, is a kind of use has a long history of antirust paint, the antirust paint it with linseed oil makes up, its good rust resistance, it demands for steel rust on the surface of the handle is not high, in the presence of residual oxide coating on the surface still have very good antirust effect. But the drawback is toxic, easy cause poisoning; Due to the density of lead big, easy to precipitate; Cannot be used in light m e t al rust, easy happening because electrochemical corrosion; Red lead to timely after antirust paint coating, the paint or primer is used white and pink.西宁地坪漆|西宁涂料
     (2) zinc chrome yellow belongs to the most appropriate maintenance primer of antirust paint, is also a kind of good light m e t al antirust paint, on atmospheric exposure effect is good. (3) lead acid calcium, lead powder, etc. Series of lead paint, due to the toxicity, but also consume large amounts of lead m e t al, from the viewpoint of development, should be gradually replaced by other antirust pigments.西宁地坪漆|西宁涂料
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