ABSTRACT

A two-stage synthesis of anti-corrosion pigments based on synthetic zeolites was performed. New pigments retain the zeolite framework structure in the nanopores of which the amorphised phosphate phase is formed. The pigments effectively reduce the aluminium alloy corrosion in sodium chloride solution. The most effective pigment is obtained by mechanochemical modification of zeolite with calcium cations, followed by liquid-phase treatment with zinc nitrate and sodium phosphate. The pigments induce the formation of a protective film of zinc hydroxides on intermetallic inclusions of the alloy. The formation of phosphates is possible on the anode sections. The pigments can become promising inhibitory components of primer paints used for the protection of structures made from aluminium alloys.

摘要

进行了基于合成沸石的防腐蚀颜料的两步合成。新颜料在形成非晶磷酸盐相的纳米孔中保留了沸石骨架结构。该颜料有效地降低了铝合金在氯化钠溶液中的腐蚀。最有效的颜料是通过用钙阳离子对沸石进行机械化学改性，然后用硝酸锌和磷酸钠进行液相处理而获得的。颜料诱导在合金的金属间夹杂物上形成氢氧化锌保护膜。阳极部分可能形成磷酸盐。这些颜料可以成为用于保护铝合金结构的底漆的有前途的抑制成分。