Preparation method of polyether hydrotalcite mixed solution

Abstract

The invention discloses a preparation method of a polyether hydrotalcite mixed solution with an ultra-low friction coefficient (less than 0.01), and belongs to the field of lubricating materials. Thesurface of an ultrathin nano hydrotalcite sheet prepared by adopting a hydrothermal method is provided with hydrophilic groups, and the ultrathin nano hydrotalcite sheet is uniformly dispersed in water according to the ratio of 0.5-2%, so that an uniform and translucent colloidal solution can be prepared, and then the uniform and translucent colloidal solution is mixed with a polyether lubricatingfluid at a ratio of 20-50%. The longitudinal dimension of the ultrathin nano hydrotalcite sheet in the polyether hydrotalcite mixed solution is very small compared with the thickness of a lubricatingfilm, and the surface of a friction pair can be flattened and polished in the running-in stage by addition of the hydrotalcite sample, so that the running-in process can be quickly completed, and bycombined with a polyether water solution, the ultralow friction coefficient is realized, and the final bearing capacity is improved.

Description

Technical field [0001] The invention belongs to the technical field of lubricating additive materials, and specifically relates to a method for preparing a mixed aqueous solution of ultrathin nanometer hydrotalcite flakes and polyether. Background technique [0002] In the daily life of human beings and the process of industrialization, unnecessary friction and wear have caused huge energy loss and material loss. Therefore, the most interesting topic in many scientific researches is how to minimize unnecessary friction or even achieve a "zero friction" state. In the process of people's infinite pursuit of "zero friction", a brand-new concept was proposed in 1990 and praised by more and more experts and scholars, that is, super slippery. The use of such lubricants can improve energy conversion efficiency, reduce friction pair material wear and improve transmission efficiency, which is of great significance for saving energy and extending the service life of equipment. At present...

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Problems solved by technology

[0005] However, in the daily long-term storage process, a small part of polyether molecules are easily oxidized and decomposed into weak acids with carboxyl groups in water, which reduces the pH value of its aqueous solution and finally appears acidic. For related equipment, it will cause serious corrosion to its surface, thus limiting the wider application of polyether

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