Abstract

It was shown that quasi-amorphous potassium polytitanate polyphosphate particles with a layered structure and high antifriction properties can be synthesized by treatment of a titanium dioxide powder in melts in the KOH–KH₂PO₄ system. At a certain ratio between the components in the reaction mixture, one can obtain the product with a minimum content of crystalline phases. The particles of the obtained X-ray amorphous product have a layered structure similar to that of potassium polytitanate synthesized in melts in the system TiO₂–KOH–KNO₃ but are characterized by a high content of phosphorus, which improves the tribological characteristics of the material. It was detected that, at [KH₂PO₄] > [TiO₂], in the reaction mixture, a secondary crystalline phase K₂Ti₂(PO₄)₃ forms, which enhances the antiscuff properties of lubricants produced based on the obtained products, but reduces their antifriction properties.

中文翻译：

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TiO 2-KOH-KH 2 PO 4体系中熔体改性的钛酸钾的合成及所得产物的摩擦学性能

摘要

结果表明，通过在KOH-KH ₂ PO ₄体系中对熔融状态的二氧化钛粉末进行处理，可以合成具有层状结构和高减摩性能的准非晶态多钛酸钾多磷酸盐颗粒。以反应混合物中各组分之间的一定比例，可以获得具有最小结晶相含量的产物。所获得的X射线无定形产物的颗粒具有类似于在TiO ₂ -KOH-KNO ₃系统中的熔体中合成的聚钛酸钾的层状结构，但其特点是磷含量高，从而改善了碳纳米管的摩擦学特性。材料。检测到在[KH ₂ PO ₄]＞ [TiO ₂ ]，在反应混合物中形成第二结晶相K ₂ Ti ₂（PO ₄）₃，其增强了基于所得产物制备的润滑剂的抗擦伤性能，但是降低了其抗磨擦性能。