CN111171946A

CN111171946A - Micro-synthetic aluminum processing cutting fluid and preparation method thereof

Info

Publication number: CN111171946A
Application number: CN201911318158.2A
Authority: CN
Inventors: 姚军
Original assignee: Sihui Gelusen Lubricant Technology Corp Ltd
Current assignee: Sihui Gelusen Lubricant Technology Corp Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-05-19

Abstract

The invention discloses a micro-synthetic aluminum processing cutting fluid which comprises the following components in parts by weight: 5-10 parts of liquid paraffin, 10-20 parts of phosphate modifier, 5-10 parts of self-emulsifying ester, 10-20 parts of antirust complexing agent, 2-5 parts of alcohol coupling agent, 5-10 parts of sulfonate cleaning agent and 25-63 parts of water. The invention also provides a preparation method of the micro-synthetic aluminum processing cutting fluid. The cutting fluid for micro-synthetic aluminum processing provided by the invention can save energy, reduce pollution, and meet the functions of lubricity, rust resistance, easiness in cleaning, cooling and the like in processing.

Description

Micro-synthetic aluminum processing cutting fluid and preparation method thereof

Technical Field

The invention belongs to the technical field of cutting fluid for nonferrous metal processing, and particularly relates to micro-synthetic aluminum processing cutting fluid and a preparation method thereof.

Background

After the bay war, various countries develop processing cutting fluid without mineral oil, and Germany is particularly prominent, but long-term research shows that the fully synthetic cutting fluid does not use mineral oil, and solves the problems of service life, cleaning and the like, but the rust-proof capability of the fully synthetic cutting fluid can not be maintained after long-term use, and simultaneously has a problem, namely, the extreme pressure lubricity is not enough, and the extreme processing such as boring, tapping and the like cannot be performed sufficiently, so that the problems of scraping, insufficient finish and the like of the product occur, the rust removal of the semisynthetic cutting fluid meets the requirements, but the problem of environmental pollution is serious, the service life of the cutting fluid is shortened, the energy waste is caused, thus, a product between semi-synthesis and total synthesis is developed, so that the oil particles in water become tiny, even if various harsh requirements for lubrication are met, rust prevention capability can be maintained, and a product having a life consistent with that of the fully synthetic cutting fluid becomes necessary.

Disclosure of Invention

The invention discloses a micro-synthetic aluminum processing cutting fluid and a preparation method thereof, which are designed to solve the problems of semi-synthetic cutting fluid and fully-synthetic cutting fluid used in the existing aluminum processing industry, and can save energy, reduce pollution and meet the functions of lubricity, rust resistance, easiness in cleaning, cooling and the like in processing.

The invention provides a micro-synthetic aluminum processing cutting fluid which comprises the following components in parts by weight:

5-10 parts of liquid paraffin, 10-20 parts of phosphate modifier, 5-10 parts of self-emulsifying ester, 10-20 parts of antirust complexing agent, 2-5 parts of alcohol coupling agent, 5-10 parts of sulfonate cleaning agent and 25-63 parts of water.

Further, the phosphate ester modifier is prepared by the following preparation method:

preparation of phosphate starch

①, drying corn starch to the water content of 10-12% to obtain dry starch;

②, mixing the dried starch and phosphate, uniformly stirring the mixture by using a heat-collecting constant-temperature heating magnetic stirrer to obtain a mixture, adding sodium hydroxide serving as a catalyst, wherein the mass of the sodium hydroxide is 0.1 percent of the total mass of the mixture, heating the mixture to 110-120 ℃, keeping stirring, applying a 1T-3T turbulent magnetic field, and reacting for 1h-3h to obtain phosphate starch;

cationic substitution treatment

adding purified water with the mass 8-9 times of that of phosphate starch into phosphate starch to obtain a mixed solution, monitoring the pH value of the mixed solution by using a stage acidimeter, and then adjusting the pH value of the mixed solution to 11.5-12.5 by adding sodium hydroxide to obtain an alkalized mixed solution;

heating the alkalized mixed solution to 42-45 ℃, then mixing 3-chloro-2-hydroxypropyl trimethyl ammonium chloride and sodium hydroxide according to the mass ratio of 6-7: 1, slowly adding the mixture into the heated alkalized mixed solution while stirring, and keeping stirring for 6-8 hours while preserving the temperature to obtain paste;

③, completely drying the paste by adopting an electric heating air blast drying oven to obtain dry blocks, then grinding the dry blocks, washing the powder by adopting ethanol water solution, and then drying;

and fourthly, repeating the step III for 5 to 7 times to obtain the phosphate modifier compatible with the cation.

Further, the self-emulsifying ester is a defoaming polyether copolymer.

Further, the self-emulsifying ester is prepared by the following preparation method:

1) preparation before manufacture

preparing 28-35 parts of ethylene oxide, 10-15 parts of polyolefin copolymer, 1-1.2 parts of alcohol-containing organic matter and 4-15 parts of C14-C16 fatty acid according to parts by weight;

preparing auxiliary materials of 42 to 48 parts of toluene, 1 to 2 parts of water-soluble inorganic base, nitrogen, sufficient ethanolamine and sufficient purified water;

preparing a vacuum reaction kettle provided with a temperature control device, a cation exchange resin column, a temperature control reaction kettle provided with a water separator, a stirrer and a nitrogen guide pipe, and microwave generating equipment matched with each reaction kettle;

2) production of polyether copolymer

mixing and uniformly stirring the alcohol-containing organic matter prepared in the step 1) and the water-soluble inorganic base prepared in the step 1) and the step II, then putting the mixture into a vacuum reaction kettle prepared in the step 1) and the step III, continuously vacuumizing until the pressure in the kettle is negative pressure, wherein the range is-100 KPa to-90 KPa, heating to 50-100 ℃, continuously and uniformly stirring, and treating for 8-15 min by adopting microwave generating equipment prepared in the step 1) and the step III at the power of 800-1000W to obtain a to-be-treated preparation reaction kettle;

introducing nitrogen prepared in the step 1) into the to-be-treated preliminary reaction kettle obtained in the step ① to restore the pressure in the kettle to be positive pressure within the range of 90-110 KPa, maintaining the pressure, adjusting the temperature to 90-130 ℃, introducing 25-30 parts of ethylene oxide prepared in the step ③ in the step 1), treating the mixture for 8-15 min by adopting microwave generating equipment prepared in the step 1) at the power of 800-1000W, and obtaining the to-be-polymerized reaction kettle;

thirdly, all the polyolefin copolymer prepared in the step ③ is added into the reaction kettle to be polymerized obtained in the step ②, the temperature and the pressure are kept, and the microwave generating equipment prepared in the step ③ is continuously adopted to process for 8min to 15min at the power of 800W to 1000W, so that a prepolymerization reaction kettle is obtained;

adding the residual ethylene oxide into the prepolymerization reactor obtained in the step ③, keeping the temperature and the pressure, continuously adopting the microwave generating equipment prepared in the step (1) to process for 8-15 min at the power of 800-1000W, and taking out the reaction product in the reactor to obtain crude polyether;

⑤, immersing the crude polyether obtained in the step ④ into pure water with the sufficient temperature of 50-90 ℃, removing the original cations in the crude polyether by adopting the cation exchange resin column prepared in the step (③), taking out the cation exchange resin column, stopping inputting nitrogen, and drying the water to obtain the required polyether copolymer;

3) polyether copolymer self defoaming modification

putting the polyether copolymer obtained in the step ② of the step 2) into the temperature-controlled reaction kettle prepared in the third step of the step 1), and putting the C14-C16 fatty acid prepared in the first step of the step 1) and the methylbenzene prepared in the second step of the step 1) into the reaction kettle to obtain a defoaming reaction kettle to be treated;

② introducing nitrogen into the defoaming reaction kettle to be treated obtained in the step ① to make the pressure in the kettle range of 90KPa to 110KPa, keeping the pressure, heating to 130 ℃ to 160 ℃, treating for 8min to 15min by adopting the microwave generating equipment prepared in the step 1) at the power of 800W to 1000W to obtain a reaction kettle containing the alkaline polyether solution;

③, cooling the reaction kettle containing the alkaline polyether solution obtained in the step ② to 35-45 ℃, and then slowly dripping the ethanolamine obtained in the step 1) into the reaction kettle until the pH value of the reactant is neutralized to 6.5-7.5 to obtain the reaction kettle containing the neutral polyether solution;

stopping introducing nitrogen, releasing pressure until the pressure returns to normal pressure, heating to the boiling point of toluene, and distilling off the toluene to obtain the required microwave catalytic self-defoaming polyether copolymer lubricant.

Further, the antirust compound agent comprises the following components in parts by weight:

40-60 parts of alcohol amine, 10-20 parts of dibasic acid and 10-20 parts of tetrabasic acid.

Further, the alcohol coupling agent is selected from isohexanol.

Further, the sulfonate cleaning agent is selected from sodium fatty acid methyl ester sulfonate.

The invention provides a preparation method of the micro-synthetic aluminum processing cutting fluid, which comprises the following operation steps:

adding 5-10 parts of liquid paraffin, 10-20 parts of phosphate modifier, 5-10 parts of self-emulsifying ester, 10-20 parts of antirust compound agent, 2-5 parts of alcohol coupling agent and 5-10 parts of sulfonate cleaning agent into a blending reaction kettle in sequence according to the weight ratio, and stirring and mixing at normal temperature;

and adding 25-63 parts of water, and stirring and mixing to obtain the micro-synthetic aluminum processing cutting fluid.

The micro-synthetic aluminum processing cutting fluid has the beneficial effects that:

by combining various added raw materials, the aluminum alloy has the triple functions of lubrication, cleaning and rust prevention, so that the problem of corrosion prevention of aluminum is solved, the functions of abrasion resistance and defoaming are enhanced, the consumption of a surfactant is greatly reduced, and the possibility of environmental pollution is reduced; compared with the traditional semisynthetic cutting fluid, the particle size of the additive material in water is reduced, so that the state of the cutting fluid tends to be fully synthesized, and the cleanliness of a processed product is obviously improved. The micro-synthetic aluminum processing cutting fluid greatly reduces the consumption of additives, improves the production efficiency and the product quality, is clean and excellent, prolongs the service life of the cutting fluid, and has obvious economic, environmental-friendly and energy-saving benefits.

Detailed Description

The invention discloses a micro-synthetic aluminum machining cutting fluid and a preparation method thereof, which can save energy, reduce pollution, and meet the functions of lubricity, rust resistance, easy cleaning, cooling and the like in machining.

The technical solutions of the present invention will be described clearly and completely below, and it is obvious that the description is only a part of the embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.

In one embodiment, the phosphate ester modifier is prepared by the following preparation method:

preparation of phosphate starch

②, mixing the dried starch and phosphate, uniformly stirring the mixture by using a heat-collecting constant-temperature heating magnetic stirrer to obtain a mixture, adding sodium hydroxide with the mass being 0.1% of the total mass of the mixture into the mixture as a catalyst, heating to 110-120 ℃, keeping stirring, applying a 1T-3T turbulent magnetic field, and reacting for 1-3 h to obtain phosphate starch;

cationic substitution treatment

② adding ② purified ② water ② with ② the ② mass ② of ② 8 ② - ② 9 ② times ② of ② that ② of ② phosphate ② starch ② into ② phosphate ② starch ② to ② obtain ② a ② mixed ② solution ②, ② monitoring ② the ② pH ② value ② of ② the ② mixed ② solution ② by ② using ② a ② step ② acidimeter ②, ② adjusting ② the ② pH ② value ② of ② the ② mixed ② solution ② to ② 11.5 ② - ② 12.5 ② by ② adding ② sodium ② hydroxide ② to ② obtain ② an ② alkalized ② mixed ② solution ②, ② heating ② the ② alkalized ② mixed ② solution ② to ② 42 ② - ② 45 ② ℃ ②, ② mixing ② 3 ② - ② chloro ② - ② 2 ② - ② hydroxypropyl ② trimethyl ② ammonium ② chloride ② and ② sodium ② hydroxide ② according ② to ② the ② mass ② ratio ② of ② 6 ② - ② 7 ②: ② 1 ②, ② slowly ② adding ② the ② mixture ② into ② the ② heated ② alkalized ② mixed ② solution ② while ② stirring ②, ② keeping ② the ② temperature ② and ② stirring ② for ② 6 ② - ② 8 ② hours ② to ② obtain ② a ② paste ②, ② completely ② drying ② the ② paste ② by ② using ② an ② electric ② heating ② air ② blast ② drying ② box ② to ② obtain ② dry ② blocks ②, ② then ② washing ② the ② dry ② blocks ② by ② using ② an ② ethanol ② water ② solution ②, ② then ② drying ②, ② and ② repeating ② the ② step ② three ② times ② 5 ② - ② 7 ② times ② to ② obtain ② the ② phosphate ② modified ② substance ② compatible ② with ② cations ②. ②

By adopting the phosphate modifier, the corrosion problem of aluminum can be effectively relieved, the functions of abrasion resistance and defoaming are enhanced, the use of a surfactant is greatly reduced, and the environmental pollution is reduced.

In one embodiment, the self-emulsifying ester is a defoaming polyether copolymer.

In one embodiment, the self-milk ester is prepared by the following preparation method:

1) preparation before manufacture

2) production of polyether copolymer

introducing nitrogen prepared in the step 1) ② into the to-be-treated preliminary reaction kettle obtained in the step ① to restore the pressure in the kettle to be positive pressure within the range of 90-110 KPa, maintaining the pressure, adjusting the temperature to 90-130 ℃, introducing 25-30 parts of ethylene oxide prepared in the step 1) ② into the step 1), treating the ethylene oxide with the microwave generating equipment prepared in the step 1) for 8-15 min at the power of 800-1000W, and obtaining the to-be-polymerized reaction kettle;

③, adding all the polyolefin copolymer prepared in the step 1) in the step 1 into the to-be-polymerized reaction kettle obtained in the step ② the temperature and the pressure, and continuously treating for 8-15 min by adopting the microwave generating equipment prepared in the step 1) in the step ③ at the power of 800-1000W to obtain a prepolymerization reaction kettle;

④, adding the residual ethylene oxide into the prepolymerization reaction kettle obtained in the step ③, keeping the temperature and the pressure, continuously adopting the microwave generating equipment prepared in the step ③ of the step 1) to process for 8-15 min at the power of 800-1000W, and taking out the reaction product in the reaction kettle to obtain crude polyether;

⑤, immersing the crude polyether obtained in the step ④ into pure water with sufficient temperature of 50-90 ℃, removing the original cations in the crude polyether by using the cation exchange resin column prepared in the step (③), then taking out the cation exchange resin column, stopping nitrogen input, and drying moisture to obtain the required polyether copolymer;

3) polyether copolymer self defoaming modification

putting ① and polyether copolymer obtained in ① and step ③ of ① and step 2) into ① and temperature-controlled reaction kettle prepared in ① and third step of ① and step 1), and putting ① and C14-C16 fatty acid prepared in ① and step 1) and ① and toluene prepared in ① and step 1) into ① and reaction kettle to obtain a defoaming reaction kettle to be treated;

In one embodiment, the antirust compound agent comprises the following components in parts by weight:

In one embodiment, the alcohol coupling agent is selected from isohexanol.

In one embodiment, the sulfonate detergent is selected from sodium fatty acid methyl ester sulfonates.

The invention is illustrated by the following specific examples:

example 1

The embodiment adopts the following raw materials in percentage by mass:

the preparation steps are as follows:

adding liquid paraffin, phosphate modifier, self-emulsifying ester, antirust complexing agent, alcohol coupling agent and sulfonate cleaning agent into a blending reaction kettle in sequence and weight ratio, starting a stirrer at normal temperature, stirring at 50-70 times/min for 40 min, wherein the oil liquid is in a slightly transparent state;

continuously adding water into the reaction kettle, and stirring and mixing;

and sampling from the reaction kettle for quality detection, and barreling after each performance index meets the quality requirement.

Example 2

The embodiment adopts the following raw materials in percentage by mass:

the preparation steps are as follows:

continuously adding water into the reaction kettle, and stirring and mixing;

Example 3

The embodiment adopts the following raw materials in percentage by mass:

the preparation steps are as follows:

continuously adding water into the reaction kettle, and stirring and mixing;

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all should be considered as belonging to the protection scope of the invention.

Claims

1. The cutting fluid for micro-synthetic aluminum processing is characterized by comprising the following components in parts by weight:

2. The cutting fluid for micro-synthetic aluminum processing according to claim 1, wherein the phosphate ester modifier is prepared by the following preparation method:

preparation of phosphate starch

①, drying corn starch to the water content of 10-12% to obtain dry starch;

②, mixing the dried starch and phosphate and uniformly stirring the mixture by a heat-collecting constant-temperature heating magnetic stirrer to obtain a mixture, then adding sodium hydroxide which accounts for 0.1 percent of the total mass of the mixture into the mixture as a catalyst, heating the mixture to 110-120 ℃, keeping stirring, then applying a disordered magnetic field of 1T-3T,

reacting for 1-3 h to obtain phosphate starch;

cationic substitution treatment

heating the alkalized mixed solution to 42-45 ℃, then mixing 3-chloro-2-hydroxypropyl trimethyl ammonium chloride and sodium hydroxide according to the mass ratio of 6-7: 1, slowly adding the mixture into the heated alkalized mixed solution while stirring, and keeping stirring for 6-8 hours while keeping the temperature to obtain paste;

③, completely drying the paste by adopting an electric heating air blast drying oven to obtain dry blocks, then grinding the dry blocks, washing the powder by adopting an ethanol water solution, and then drying;

3. The cutting fluid for micro-synthetic aluminum processing according to claim 1, wherein the self-emulsifying ester is a defoaming polyether copolymer.

4. The cutting fluid for micro-synthetic aluminum processing according to claim 3, wherein the self-emulsifying ester is prepared by the following preparation method:

1) preparation before manufacture

2) production of polyether copolymer

thirdly, all the polyolefin copolymer prepared in the step ① is added into the reaction kettle to be polymerized obtained in the step ②, the temperature and the pressure are kept, the microwave generating equipment prepared in the step ① and the step ③ is continuously adopted to process for 8min to 15min at the power of 800W to 1000W, and then a prepolymerization reaction kettle is obtained;

⑤, immersing the crude polyether obtained in the step ④ into pure water with sufficient temperature of 50-90 ℃, removing the original cations in the crude polyether by using the cation exchange resin column prepared in the step (③), taking out the cation exchange resin column, stopping nitrogen input, and drying moisture to obtain the required polyether copolymer;

3) polyether copolymer self defoaming modification

5. The cutting fluid for micro-synthetic aluminum processing according to claim 1, wherein the rust-proof complexing agent comprises the following components in parts by weight:

6. The cutting fluid of claim 1, wherein the alcohol coupling agent is selected from isohexanol.

7. The cutting fluid for micro-synthetic aluminum processing according to claim 1, wherein the sulfonate detergent is selected from sodium fatty acid methyl ester sulfonate.

8. The method for preparing a cutting fluid for micro-synthetic aluminum machining according to any one of claims 1 to 7, comprising the steps of:

adding 5-10 parts of liquid paraffin, 10-20 parts of phosphate modifier, 5-10 parts of self-emulsifying ester, 10-20 parts of antirust complexing agent, 2-5 parts of alcohol coupling agent and 5-10 parts of sulfonate cleaning agent into a blending reaction kettle in sequence according to the weight ratio, and stirring and mixing at normal temperature;