阅读说明：本技术 一种天泵、地泵润管剂或润泵剂及其制备方法 (Tube lubricant or pump lubricant for top pump and bottom pump and preparation method thereof ) 是由 桂成方 桂林 刘春花 龙际超 于 2021-09-10 设计创作，主要内容包括：一种天泵、地泵润管剂或润泵剂,以重量份数计,由以下成分制成：水性丙烯酸树脂6-9份,聚甲基丙烯酸20-30份,聚丙烯酰基二甲基牛磺酸钠11-44份,聚丙烯酰胺30-50份。该天泵、地泵润管剂或润泵剂使用后7天完全降解无残留,堵泵的几率低。(A top pump, ground pump lubricant or lubricant is prepared from the following components in parts by weight: 6-9 parts of water-based acrylic resin, 20-30 parts of polymethacrylic acid, 11-44 parts of sodium polyacryloyldimethyl taurate and 30-50 parts of polyacrylamide. The lubricant for the day pump and the ground pump or the lubricant for the pump is completely degraded in 7 days after being used without residue, and the probability of pump blockage is low.)

1. The natural pump, ground pump lubricant or lubricant is characterized by being prepared from the following components in parts by weight: 6-9 parts of water-based acrylic resin, 20-30 parts of polymethacrylic acid, 11-44 parts of sodium polyacryloyldimethyl taurate and 30-50 parts of polyacrylamide.

2. The day pump, earth pump lubricant or lubricant as set forth in claim 1, wherein the molecular weight of the aqueous acrylic resin is 8000-9000Mn and the acid value is 200-250.

3. The day pump, earth pump lubricant or lubricant according to claim 1, wherein the polymethacrylic acid has a molecular weight of 86.0892.

4. The day pump, earth pump lubricant or lubricant according to claim 1, wherein the sodium polyacryloyldimethyl taurate is manufactured by south-kyo ilagins chemical ltd under the trade name nreus 3751.

5. The day pump, earth pump lubricant or lubricant as claimed in claim 1, wherein the polyacrylamide is non-ionic polyacrylamide with molecular weight of 1800-2000 ten thousand.

6. The day pump, earth pump lubricant or lubricant according to claim 1, characterized by being made of the following components in parts by weight: 8 parts of water-based acrylic resin, 25 parts of polymethacrylic acid, 24 parts of sodium polyacryloyldimethyl taurate and 35 parts of polyacrylamide.

7. The method for preparing the day pump, the earth pump lubricant or the lubricant according to claim 1, which comprises the following steps in sequence: weighing polyacrylamide, water-based acrylic resin, polymethacrylic acid and sodium polyacryl dimethyl taurate, adding into an ultrafine grinder, starting the grinder for 20-30 minutes to obtain a finished product, wherein the main shaft rotation speed is 2800-.

Technical Field

The invention belongs to the technical field of lubrication, and particularly relates to a top pump and ground pump lubricant or pump lubricant and a preparation method thereof.

Background

Traditional pump-wetting mortar, concrete enterprises need to invest manpower and material resources to produce. At present, under the condition of shortage of cement and sand resources, the raw materials are still used for producing the pump-wetting mortar, which is really a great waste. In addition, generally, the pump moistening mortar with the size of 1 cubic meter is needed at least for one pump moistening, and for pumps with long conveying pipelines, the pump moistening mortar with the size of 2-3 cubic meters is needed sometimes, and the settlement is needed for the raw materials, and a very large expense is also needed for concrete production enterprises under the condition that concrete products need to be subsidized.

The pump truck pipe lubricant is compounded by multiple high polymer materials, can be quickly dissolved within 3-5 minutes by mechanical or manual stirring at normal temperature, forms transparent and stable viscous liquid, and partially adheres to a pipeline while the liquid dissolved by the pump truck pipe lubricant passes through the pipeline, so that the effect of lubricating a pump pipe is realized, and the pump truck pipe lubricant and concrete are not dissolved with each other, so that various performances of the concrete are not influenced. The concrete pump is very convenient to use, no other equipment is needed to be added, a separate lubricating pump is not needed, and lubricating liquid is moved at the front end of concrete and can be pumped with the concrete simultaneously, so that the expenditure of manpower and material resources is greatly reduced.

The traditional pump wetting mortar sometimes needs to be transported by a transport vehicle separately in the transportation process, and sometimes the pump wetting mortar is placed on the upper part of a concrete mixing transport vehicle, and concrete is loaded on the lower part of the concrete mixing transport vehicle. Therefore, the vehicle is wasted in use, and if the transport vehicle which is used for simultaneously loading pump wetting mortar and concrete cannot rotate in the transport process, otherwise the concrete and the mortar can be mixed together, the condition that the workability is not met can be caused to return if the road is far away or the workability of the concrete is slightly poor, and in addition, the first vehicle of concrete after the pump wetting can not rotate in the road to cause poor workability and easily cause the pump blockage phenomenon. The pump truck tube wetting agent is very convenient to use, so that a plurality of bags are always prepared on a plurality of pump trucks or locomotives, and the purpose of wetting the pump can be achieved conveniently and quickly.

The pump moistening mortar is generally mainly used for moistening a pump due to the fact that the strength grade of the pump moistening mortar is different from that of concrete, other purposes are not large, and some construction units use the pump moistening mortar in places with low requirements on strength, such as a terrace, the ground of a construction site and the like. The cost of lubricating and pumping mortar is a great waste if the cost is paid by concrete enterprises or construction units. Meanwhile, the pump moistening mortar also brings some quality hidden dangers, and the pump moistening mortar is used for structural parts in some construction sites in the past, so that the serious quality accidents of unqualified engineering acceptance and final removal are caused.

The pump-wetting performance is compared, the pump-wetting effect of the pump truck pipe-wetting agent with better quality is better than that of pump-wetting mortar, the pump-wetting mechanism of the mortar is that the pump-wetting mortar has smaller friction force, and cement paste can be adhered to the pipe wall when passing through a pipeline and plays a role in lubricating concrete conveyed later.

Chinese patent CN201410840206.5 discloses a concrete pumping pipeline lubricant and a preparation method thereof, which is characterized in that the raw material components and the mass percentages of the components in the total amount of the raw materials are respectively as follows: 0.3-2% of sodium alginate, 0.2-3% of polyoxyethylene, 8-20% of acrylic acid type polymer and 75-91.5% of water. The patent belongs to an aqueous pumping pipe lubricant, and compared with a powdery pumping pipe lubricant, the aqueous pumping pipe lubricant is too high in price and inconvenient to use. In addition, polyethylene oxide and acrylic acid polymers dissolve in water in advance, and may degrade to lose the tube-wetting function.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a natural pump, underground pump lubricant or lubricant and a preparation method thereof, wherein the natural pump, underground pump lubricant or lubricant is completely degraded without residue 7 days after being used, and the pump blocking probability is low.

The technical scheme of the invention is as follows:

a top pump, ground pump lubricant or lubricant is prepared from the following components in parts by weight: 6-9 parts of water-based acrylic resin, 20-30 parts of polymethacrylic acid, 11-44 parts of sodium polyacryloyldimethyl taurate and 30-50 parts of polyacrylamide.

The indexes of the water-based acrylic resin are as follows: the number average molecular weight is 8000-9000, and the acid value is 200-250.

The water-based acrylic resin has low consumption, poor adhesion of a lubricating layer and easy falling off when concrete is pumped; the dosage is too high, and the lubricant is easy to dry and solidify and loses the lubricating function.

Wherein the polymethacrylic acid is produced by Condits chemical engineering (Hubei) Co., Ltd., the content is 99 percent, and the molecular weight is 86.0892).

Wherein, the use level of the polymethacrylic acid is too low, the lubricating layer is easy to flow, and the consumption is increased; the use amount is too high, the lubricating layer is not easy to flow, and the lubricating effect is reduced.

The sodium polyacryloyl dimethyl taurate is produced by Nanjing ilaplacian chemical company Limited under the trade name Nireus 3751.

Wherein the polyacrylamide is nonionic polyacrylamide with molecular weight of 1800-2000 ten thousand. If the cationic polyacrylamide is adopted, the dissolution speed is slow, and the construction is inconvenient; if anionic polyacrylamide is used, the viscosity is low and the lubricity is insufficient.

The preparation method of the lubricant for the upper pump and the lower pump or the lubricant for the lower pump comprises the following steps:

weighing polyacrylamide, water-based acrylic resin, polymethacrylic acid and sodium polyacryl dimethyl taurate, adding into an ultrafine grinder, starting the grinder for 20-30 minutes to obtain a finished product, wherein the main shaft rotation speed is 2800-.

The formula principle of the lubricant for the upper pump and the ground pump or the lubricant for the pump is as follows:

polyacrylamide provides an extreme lubricating effect; the water-based acrylic resin provides adhesion between a lubricating layer (namely the lubricating layer formed by the polyacrylamide and the water-based acrylic resin) and the conveying pump pipe, so that the lubricating layer is prevented from falling off easily; the polymethacrylic acid plays a thickening role; the sodium polyacryl dimethyl taurate has the functions of dispersing and solubilizing.

The lubricant for the upper pump and the lower pump or the lubricant for the pump is completely degraded in 7 days after being used without residue, has good lubricating property and low probability of pump blockage.

The methods of use of the compositions of the present invention are shown in Table 1.

TABLE 1

Note: 1 bag =300 g.

Detailed Description

The present invention will be further described with reference to the following examples.

The raw material grades in the examples and the comparative examples are as follows:

water-based acrylic resin: (molecular weight 8600Mn, solid content: 98.7%, acid value 215, viscosity 3500 CP);

polymethacrylic acid: CAS accession number: 25087-26-7, Conditis chemical engineering (Hubei), content 99%, molecular weight 86.0892;

sodium polyacryloyl dimethyl taurate: manufactured by south beijing ilaplacian chemical limited, under the designation Nireus 3751;

examples are nonionic polyacrylamides: the molecular weight of 1800 + 2000 ten thousand of Bibo water supply materials Limited in Consolidation;

the comparative example 1 is anionic polyacrylamide, produced by Bibo water supply materials Co., Ltd., molecular weight 1800-.

Example 1

8 parts of water-based acrylic resin, 25 parts of polymethacrylic acid, 24 parts of sodium polyacryloyldimethyl taurate and 35 parts of polyacrylamide.

Example 2

9 parts of water-based acrylic resin, 24 parts of polymethacrylic acid, 20 parts of sodium polyacryloyldimethyl taurate and 40 parts of polyacrylamide.

Example 3

7 parts of water-based acrylic resin, 23 parts of polymethacrylic acid, 35 parts of sodium polyacryloyldimethyl taurate and 33 parts of polyacrylamide.

Example 4

9 parts of water-based acrylic resin, 27 parts of polymethacrylic acid, 27 parts of sodium polyacryloyldimethyl taurate and 45 parts of polyacrylamide.

The pump lubricant or pump lubricant of the above examples satisfies the performance criteria of table 2. When testing, the test was carried out with water at a concentration of 1 wt%.

TABLE 2

。

Comparative example 1

Comparative example 1 is identical to the formulation of example 1, except that the polyacrylamide is anionic.

Comparative example 2

15 parts of water-based acrylic resin, 25 parts of polymethacrylic acid, 24 parts of sodium polyacryloyldimethyl taurate and 35 parts of polyacrylamide.

Comparative example 3

8 parts of water-based acrylic resin, 40 parts of polymethacrylic acid, 24 parts of sodium polyacryloyldimethyl taurate and 35 parts of polyacrylamide.

The above comparative examples show the performance indexes of the pump lubricant, the pump lubricant or the pump lubricant in table 3. The test conditions of the comparative example were the same as those of the example.

TABLE 3

。

The preparation methods of the above examples and comparative examples are as follows:

weighing polyacrylamide, water-based acrylic resin, polymethacrylic acid and sodium polyacryloyldimethyl taurate, adding the weighed polyacrylamide, water-based acrylic resin, polymethacrylic acid and sodium polyacryloyldimethyl taurate into an ultrafine grinder, starting the grinder for 20 minutes to obtain a finished product, wherein the rotation speed of a main shaft is 3500rpm, and the discharge granularity is 100-350 mesh.