鋁銀漿也稱為鋁粉漿,銀漿等,主要成分是雪花狀的鋁顆粒和石油溶劑,通常為糊狀。 好的鋁銀漿的區別特征主要在於:鋁板表麵光滑平整,粒徑分布集中,形狀規則,光反射能力強,金屬光澤。 當區分鋁銀漿的使用壽命時,可以通過鋁銀漿的“跟隨效應”原理來識別。 當鋁銀漿與透明彩色顏料混合時,會引起漆膜反應。

鋁顏料

  鋁銀漿的各種特性可以通過其生產工藝來確定,並且出於安全性考慮,幾乎所有現代鋁銀漿都通過濕法在溶劑中研磨。

  首先將原材料熔融噴塗,以獲得純度不低於99.7%(根據EN576標準)的不規則噴塗粉末。 然後將其在球磨機添加的潤滑劑下,在溶劑中研磨成片狀顆粒。 研磨參數和潤滑劑類型取決於顏料的用途。

  研磨後,將顏料懸浮液過篩,過濾並混合,以獲得固體含量為65%且溶劑為35%的產物。 通過向濾餅中添加特定的溶劑或添加特殊的添加劑,可以根據不同的應用生產合適的顏料產品。

  Summary

  Aluminium paste are used in the paints and coatings industry both for their appearance and to fulfil certain functions. Special-effect pigments are always in the form of flakes and particle diameter is larger than that of colour pigments. While the particle size of colour pigments is in the wavelength range of visible light, The flake diameter of special effect pigments is generally around 5-100um.

  The properties of Aluminium paste can be deduced directly from the production process,

  But for reasons of safety modern Aluminium paste are produced almost exclusively using the a wet milling process.

  The raw material is atomized, Irregular powder with a minimal purity of 99.7% according to EN 576 which is milled or shaped into flake-like particles in ball mills in white spirit in the presence of a lubricant.

  The milling parameters and the lubricant are determined by the application for which the pigment is intended. The pigment suspension produced after milling is screened, pressed on filter presses and mixed in mixers to the standard combination of 65% solids and 35% solvent.The final product can be adapted for its later application by the addition of a special solvent or by adding special additives to the filter cake.

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