阅读说明：本技术 一种含稀土铈元素的羟基硅酸盐的制备配方及其方法 (Preparation formula and preparation method of hydroxyl silicate containing rare earth cerium element ) 是由 徐平 李发炎 王颖 于 2019-11-28 设计创作，主要内容包括：本发明公开了一种含稀土铈元素的羟基硅酸盐的制备配方及其方法,制备配方,按照质量份数包括：5-15份硝酸铈,5-15份十二烷基苯磺酸钠,80-95份羟基硅酸镁,0.5-1.5份偶联剂或月桂酸钠；运用本发明的配方只需在常温常压下制备,合成条件低,但得到的产品减磨和自修复作用效果好,起效时间短,起效后,效果维持好。(The invention discloses a preparation formula and a preparation method of hydroxyl silicate containing rare earth cerium, wherein the preparation formula comprises the following components in parts by weight: 5-15 parts of cerium nitrate, 5-15 parts of sodium dodecyl benzene sulfonate, 80-95 parts of magnesium hydroxy silicate and 0.5-1.5 parts of coupling agent or sodium laurate; the formula of the invention only needs to be prepared at normal temperature and normal pressure, the synthesis condition is low, but the obtained product has good antifriction and self-repairing effects, the onset time is short, and the effect is maintained well after onset.)

1. The preparation formula of the hydroxyl silicate containing the rare earth cerium element is characterized by comprising the following components in parts by mass: 5-15 parts of cerium nitrate, 5-15 parts of sodium dodecyl benzene sulfonate, 80-95 parts of magnesium hydroxy silicate and 0.5-1.5 parts of coupling agent or sodium laurate.

2. The preparation formula of the rare earth cerium-containing hydroxy silicate according to claim 1, wherein the preparation formula comprises the following components in parts by mass: 10 parts of cerium nitrate, 12 parts of sodium dodecyl benzene sulfonate, 90 parts of magnesium hydroxy silicate and 1 part of coupling agent or sodium laurate.

3. The preparation formulation of a rare earth cerium-containing hydroxysilicate as claimed in claim 1, wherein said coupling agent comprises: silane coupling agent, titanate coupling agent.

4. The preparation method of the hydroxyl silicate containing the rare earth cerium element is characterized by comprising the following steps:

preparing materials according to a formula, wherein the formula comprises the following components in parts by mass: 5-15 parts of cerium nitrate, 5-15 parts of sodium dodecyl benzene sulfonate, 80-95 parts of magnesium hydroxy silicate and 0.5-1.5 parts of coupling agent or sodium laurate;

preparing a solution I: dissolving cerium nitrate in deionized water at 20 ℃ to prepare a clear solution;

preparing a solution II: dissolving sodium dodecyl benzene sulfonate in deionized water at 20 ℃ to prepare a second clear solution;

adding magnesium hydroxy silicate powder into the second solution, and stirring to prepare a second solution dispersion;

slowly dropping the solution I into the solution II dispersion liquid, and aging for 1 h;

placing the aged solution in a centrifuge for centrifugal collection and drying;

grinding the dried powder, adding a coupling agent or sodium laurate, and grinding for 2 hours;

dispersing the treated powder into base oil by an emulsifying machine according to the required use ratio.

5. The method according to claim 4, wherein the centrifugation parameters of the centrifugation collection is 7500 rpm.

6. The method according to claim 4, wherein the drying temperature is 80 ℃.

7. The method according to claim 4, wherein the grinding is performed by a planetary ball mill.

Technical Field

The invention relates to the field of chemical industry, in particular to a preparation formula and a preparation method of hydroxyl silicate containing rare earth cerium.

Background

The hydroxyl silicate is usually used as a lubricating oil additive and added into a lubricating system, and has the functions of reducing friction and self-repairing; in order to achieve better abrasion reduction and self-repair effects, hydroxyl silicate is modified in the market, and a plurality of modification methods are available, wherein one modification method is rare earth doping, and in the rare earth element doping method, one modification method is to simply mix oxides and then modify the oxides; the invention solves the problems that the preparation method is added in the process of synthesizing magnesium silicate hydroxide, the synthesis condition requirement is high, the friction reduction and self-repair effects after modification are not obvious, the market needs a preparation formula and a preparation method of the rare earth cerium-containing silicate hydroxide, the synthesis condition is low, and the friction reduction and self-repair effects are good.

Disclosure of Invention

In order to solve the defects of the prior art, the invention aims to provide a preparation formula and a preparation method of hydroxyl silicate containing rare earth cerium, the preparation is carried out at normal temperature and normal pressure, and the synthesis condition is low; the obtained product has good antifriction and self-repairing effects, short onset time and good effect maintenance after onset.

In order to achieve the above object, the present invention adopts the following technical solutions:

a preparation formula of hydroxyl silicate containing rare earth cerium comprises the following components in parts by weight: 5-15 parts of cerium nitrate, 5-15 parts of sodium dodecyl benzene sulfonate, 80-95 parts of magnesium hydroxy silicate and 0.5-1.5 parts of coupling agent or sodium laurate.

The preparation formula of the hydroxyl silicate containing the rare earth cerium element comprises the following components in parts by weight: 10 parts of cerium nitrate, 12 parts of sodium dodecyl benzene sulfonate, 90 parts of magnesium hydroxy silicate and 1 part of coupling agent or sodium laurate.

In the preparation formula of the rare earth cerium-containing hydroxy silicate, the coupling agent comprises: silane coupling agent, titanate coupling agent.

A preparation method of hydroxyl silicate containing rare earth cerium comprises the following steps:

preparing materials according to a formula, wherein the formula comprises the following components in parts by mass: 5-15 parts of cerium nitrate, 5-15 parts of sodium dodecyl benzene sulfonate, 80-95 parts of magnesium hydroxy silicate and 0.5-1.5 parts of coupling agent or sodium laurate;

preparing a solution I: dissolving cerium nitrate in deionized water at 20 ℃ to prepare a clear solution;

preparing a solution II: dissolving sodium dodecyl benzene sulfonate in deionized water at 20 ℃ to prepare a second clear solution;

adding magnesium hydroxy silicate powder into the second solution, and stirring to prepare a second solution dispersion;

slowly dropping the solution I into the solution II dispersion liquid, and aging for 1 h;

placing the aged solution in a centrifuge for centrifugal collection and drying;

grinding the dried powder, adding a coupling agent or sodium laurate, and grinding for 2 hours;

dispersing the treated powder into base oil by an emulsifying machine according to the required use ratio.

In the preparation method of the hydroxy silicate containing the rare earth cerium, the centrifugal parameter of the centrifugal collection is 7500 rpm.

In the preparation method of the hydroxy silicate containing the rare earth cerium, the drying temperature is 80 ℃.

In the preparation method of the hydroxy silicate containing the rare earth cerium, a planetary ball mill is adopted for grinding.

The invention has the advantages that:

the method adopts a coprecipitation method, and the solution containing cerium is added into a semi-modified magnesium silicate hydroxide solution at normal temperature and normal pressure, and then is aged, centrifugally collected, dried, modified, finally dispersed and used; the preparation is carried out at normal temperature and normal pressure, and the synthesis condition is low.

The hydroxyl silicate containing the rare earth cerium element prepared by the invention has good antifriction and self-repairing effects, short acting time and good effect maintenance after acting.

Drawings

FIG. 1 is a powder XRD pattern of the product obtained in example 2 of the present invention;

FIG. 2 is a photograph of a Hitachi S-4800 scanning electron microscope showing a powder of the product obtained in example 2 of the present invention;

FIG. 3 is a graph showing the change in coefficient of friction of the product obtained in example 1 of the present invention in a friction and wear tester;

FIG. 4 is a graph showing the change in coefficient of friction of the product obtained in example 2 of the present invention in a friction and wear tester;

FIG. 5 is a graph showing the change in coefficient of friction of the product obtained in example 3 of the present invention in a friction and abrasion tester;

FIG. 6 is a graph showing the change in the friction coefficient of a product obtained in 1-1 of comparative example 1 of the present invention in a friction and abrasion tester;

FIG. 7 is a graph showing changes in the friction coefficient of the products obtained in 1-2 of comparative example 1 of the present invention tested in a friction wear tester;

FIG. 8 is a graph showing the change in the coefficient of friction of the product obtained in comparative example 2 of the present invention in a friction and abrasion tester.

Detailed Description

The invention is described in detail below with reference to the figures and the embodiments.

A preparation formula of hydroxyl silicate containing rare earth cerium comprises the following components in parts by weight: 5-15 parts of cerium nitrate, 5-15 parts of sodium dodecyl benzene sulfonate, 80-95 parts of magnesium hydroxy silicate and 0.5-1.5 parts of coupling agent or sodium laurate. It should be noted that: sodium laurate and a coupling agent.

As an example, the coupling agent includes: silane coupling agent, titanate coupling agent.

A preparation method of hydroxyl silicate containing rare earth cerium comprises the following steps:

preparing materials according to a formula, wherein the formula comprises the following components in parts by mass: 5-15 parts of cerium nitrate, 5-15 parts of sodium dodecyl benzene sulfonate, 80-95 parts of magnesium hydroxy silicate and 0.5-1.5 parts of coupling agent or sodium laurate;

preparing a solution I: dissolving cerium nitrate in deionized water at 20 ℃ to prepare a clear solution;

preparing a solution II: dissolving sodium dodecyl benzene sulfonate in deionized water at 20 ℃ to prepare a second clear solution;

adding magnesium hydroxy silicate (serpentine) powder into the second solution, and stirring to prepare a second solution dispersion;

slowly dropping the solution I into the solution II dispersion liquid, and aging for 1 h;

placing the aged solution in a centrifuge for centrifugal collection and drying; preferably, the centrifugation parameters of the centrifugation collection are 7500rpm, and the drying temperature is 80 ℃.

Grinding the dried powder, adding a coupling agent or sodium laurate, and grinding for 2 hours; as a preferable method, a planetary ball mill is used for the grinding, and the equipment used for the grinding is not limited, and the planetary ball mill is only preferable;

dispersing the treated powder into base oil by an emulsifying machine according to the required use ratio.

The following experiments were used to verify the efficacy of the formulations of the present invention;