Preparation method of nanometer magnesium silicate hydroxide, and preparation method and application of anti-wear agent

A technology of magnesium hydroxysilicate and magnesium silicate, applied in the directions of magnesium silicate, silicate, additives, etc., can solve the problems such as synthesis and surface modification of sheet-like nano-magnesium hydroxysilicate that are not mentioned, and achieve a preparation method. Simple and feasible, strong operability, controllable synthesis effect
CN105152178AActive Publication Date: 2015-12-16BEIJING JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING JIAOTONG UNIV
Publication Date
2015-12-16

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Abstract

The invention discloses a preparation method of nanometer magnesium silicate hydroxide, and a preparation method and an application of an anti-wear agent. The preparation method of nanometer magnesium silicate hydroxide comprises the following steps: 1, providing magnesium oxide and silica according to a predetermined mass ratio, and mixing magnesium oxide and silica with a predetermined concentration of a sodium hydroxide solution to obtain a mixed solution; 2, reacting the mixed solution at a predetermined temperature for a predetermined time to obtain a reacted mixed solution; 3, cleaning and filtering the reacted mixed solution until the pH value of the reacted mixed solution is smaller than 8, and filtering to obtain a filtration product; and 4, drying the filtration product to obtain the nanometer magnesium silicate hydroxide. The preparation method of the nanometer magnesium silicate hydroxide disclosed in the embodiment of the invention has the advantages of simplicity, feasibility, strong operability, and realization of the controllable synthesis of magnesium silicate hydroxide nanoparticles through controlling the reaction time.
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Description

technical field

[0001] The invention relates to the technical field of nanomaterials, and more specifically, to a preparation method of nanometer hydroxymagnesium silicate, a preparation method of an anti-wear agent and its application in lubricating oil or grease. Background technique

[0002] Magnesium hydroxysilicate is one of the main components of natural serpentine. The natural serpentine crushed to the micro-nano level can be used as a lubricating oil additive to improve the wear of mechanical parts, and even repair the worn parts of mechanical parts to a certain extent. However, natural serpentine has two major disadvantages. On the one hand, its composition is complex and its consistency is poor. Some impurities in it may even aggravate the wear of mechanical parts, resulting in poor stability of natural serpentine as a lubricating oil additive; on the other hand It is extremely difficult to obtain natural serpentine nanoparticles with nanoscale size and good consi...

Claims

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