CN114317088A

CN114317088A - Organic amine-free biological stable water-based emulsified cutting fluid and preparation method thereof

Info

Publication number: CN114317088A
Application number: CN202111540828.2A
Authority: CN
Inventors: 李涛; 张世伟
Original assignee: Shanghai Synnex Lubrication Technology Co ltd
Current assignee: Shanghai Synnex Lubrication Technology Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-04-12

Abstract

The invention provides a biological stable water-based emulsified cutting fluid containing no organic amine, which comprises the following components in percentage by weight: 5-80% of base oil, 0.5-20% of alkaline component, 0-25% of lubricant, 2-20% of anticorrosive agent, 9-36% of surfactant, 0.1-10% of coupling agent, 0-6% of water quality stabilizer, 0.1-6% of bactericide, 0-0.6% of defoaming agent and 0-60% of water. The invention also provides a preparation method of the biological stable water-based emulsified cutting fluid containing no organic amine. The biological stable water-based emulsified cutting fluid does not contain organic amine, can realize various functions of the water-based emulsified cutting fluid, and is particularly suitable for cutting ferrous metal and nonferrous metal parts; in addition, the biological stable water-based emulsified cutting fluid is diluted into aqueous liquid with a certain concentration by water, is used for machining operation of metal or nonmetal parts, and has excellent performances such as lubrication, rust prevention, microorganism resistance, foam resistance and the like.

Description

Organic amine-free biological stable water-based emulsified cutting fluid and preparation method thereof

Technical Field

The invention relates to a biological stable water-based emulsified cutting fluid containing no organic amine and a preparation method thereof.

Background

In the cutting process of various mechanical parts, water-based cutting fluid or oil-based cutting fluid is often used as a process medium, and the water-based cutting fluid or oil-based cutting fluid can play roles of lubrication, cooling, cleaning, rust prevention, bubble inhibition and the like in the process of machining, so that the reliability and the high efficiency of the machining quality are guaranteed. At present, in the metal cutting industry, the usage proportion of water-based cutting fluid products exceeds 80%, wherein emulsion type products (including emulsion cutting fluid and microemulsion cutting fluid) are mainly used, because the emulsion type cutting fluid achieves the optimal balance between the lubricating performance and the cooling performance.

The formula of the emulsified cutting fluid mainly comprises base oil, water, organic amine, a lubricant, an anticorrosive agent, a corrosion inhibitor, a surfactant, a coupling agent, a water quality stabilizer, a bactericide, a defoaming agent and the like, wherein a stock solution (concentrated solution) of a homogeneous system is formed together, the stock solution is diluted into a certain concentration by water when in use, the stock solution is a semitransparent to milky liquid in appearance, the pH value is alkaline (more than 9.0), an oil phase in the concentrated solution of a product is uniformly dispersed in a water phase in the form of liquid beads, and the finer the particle size of the oil phase, the more stable the emulsified state and the higher the transparency are. The formula of the traditional emulsified cutting fluid contains more organic amine components, such as ethanolamine, isopropanolamine and the like, which are indispensable key components and play an important role in playing the functions of the formula.

The traditional water-based emulsified cutting fluid on the market still has technical improvement space, for example, the organic amine additive used in the formula has obvious benefits and disadvantages to the product.

The positive effects of the organic amine component on various functions of the water-based emulsified cutting fluid are mainly as follows:

(1) the organic amine plays an important role in acid-base balance and emulsification characteristics of the water-based emulsified cutting fluid. The formula of the traditional water-based emulsified cutting fluid product contains organic acids such as oleic acid, tall oil fatty acid, abietic acid, ricinoleic acid, sebacic acid, dodecanedioic acid, citric acid and the like, or inorganic acids such as boric acid, silicic acid and the like, and a stable homogeneous system is difficult to form if the effect of an alkaline additive is lacked. In addition, in order to make the pH of the working fluid relatively stable, water-based cutting fluids are mostly buffered, i.e., the systems are able to withstand small amounts of strong acids and bases to keep the pH or pH of the solution substantially constant. The buffer solution is not only resistant to acids and bases but also to dilution. That is, the pH can be maintained stable when the solution is diluted; likewise, the pH of the solution remains stable as the water evaporates.

(2) The organic amine plays an important role in inhibiting microbial contamination. The microbial pollution is the main reason for generating the waste water due to the putrefaction of the water-based emulsified cutting fluid. The microbes in the water-based emulsified cutting fluid working system have different optimal pH values and pH value ranges capable of growing, the optimal pH value for the propagation of most bacteria is 3.5-9.5 (neutral optimal), the optimal pH value for mold is 1.5-11(6 is optimal), and the optimal pH value for yeast is 1.5-8.5 (4-5). The pH value of the working solution is maintained at a high level, which is favorable for inhibiting enzymatic reaction in a microorganism organism, influences the permeability of a cytoplasmic membrane, the stability of a membrane structure and the solubility or the ionization of substances, and hinders the normal physiological activity of microorganisms, thereby realizing the purposes of inhibiting the activity of the microorganisms and prolonging the service life of the working solution. In many water-based emulsified cutting fluid products, the pH of the working fluid plays a decisive role even in the anti-corrosion ability. Therefore, in order to prevent the working fluid from being contaminated by microorganisms, the pH of the water-based emulsified cutting fluid is usually controlled to 9.0 or more and maintained at 8.5 or more even in long-term operation. In addition, organic amines also have a synergistic effect on the performance of most bactericides.

(3) Organic amines are good corrosion inhibitors for ferrous metals. In order to prevent corrosion of ferrous metal caused by working fluid, the pH value of the water-based emulsified cutting fluid is maintained to be above 9.0, so that the electrochemical properties of steel parts are favorably kept in a passivation region, and the steel parts are in a thermodynamic stable state and are difficult to corrode by environmental media. When the pH value of the working solution is reduced, the anticorrosive agents such as polycarboxylic acid and the like in the formula can also play an anticorrosive function, so that steel parts are not corroded or are not obviously corroded. However, when the pH value of the working fluid tends to be neutral, the corrosion resistance of the product is almost lost, and the corrosion of steel parts is accelerated.

The negative influence of the organic amine on various functions of the water-based emulsified cutting fluid mainly comprises the following aspects:

(1) organic amine easily causes environmental pollution. The water-based emulsified cutting fluid usually contains 5-20% of organic amine, which is a main contributor to nitrogen element in the product. The nitrogen element in the organic amine is a plant nutrient element, once the nitrogen element is discharged and leaked into the environment along with working solution, the eutrophication of a water body can be caused after the environment load capacity is exceeded, the growth and the propagation of algae are facilitated, and toxic substances such as algal toxins and the like are generated; meanwhile, the growth and propagation of algae consume dissolved oxygen in water and are beneficial to the growth and propagation of anaerobic microorganisms, so that foul and even toxic gas is generated, and in severe cases, other organisms in a natural ecological system are even killed. In addition, the amine or amine salt in the alkaline metal processing liquid enters water to change the pH environment of the water, and serious harm is caused to aquatic animals and plants; enters the soil, forms nitrite and nitrate under the action of nitrifying bacteria, can be absorbed by plants, and can be converted into toxic and carcinogenic ammonium nitrite in vivo after being eaten by people.

(2) The high alkaline medium has strong corrosive action on nonferrous metals. Common nonferrous metals include copper and its alloy, aluminum and its alloy, magnesium and its alloy, cobalt and its alloy, etc., and corrosion occurs in alkaline solution, and the stronger the alkalinity, the more serious the corrosion. For example, most copper and copper alloys in amine-containing solutions form complexes that ionize, causing significant corrosion; when the oxide film is damaged, the aluminum matrix can further react with alkali to generate negative complex ions to be dissolved, so that the aluminum is corroded; magnesium and magnesium alloy can cause the hydroxide film on the surface to dissolve in an alkaline medium, and the corrosion is accelerated along with the increase of temperature and concentration; cobalt and cobalt alloys form complexes in most alkaline solutions, causing cobalt ionization.

(3) Higher pH of the working fluid will cause a decrease in lubrication performance. During the machining process, the lubricating efficiency of the friction position of the cutter and the workpiece is significantly influenced by the stability of emulsified oil drops. For lubricity the emulsion is generally less stable than metastable, and the addition of more amine increases the stability of the diluent, thus having a negative effect on lubricity. When the pH value of the diluent is lower, the friction surface of the metal is positively charged, so that the adsorption effect is easy to generate, and the lubricating property is better; when the pH value is increased, the friction surface of the metal is negatively charged, and the additive is not easy to adsorb.

(4) Organic amine and its pH condition are highly irritating to human body. The surface of the skin of a human body is provided with some acidic substances such as urea, uric acid, lactic acid, amino acid, salt and the like, so that the surface of the skin is weak acidic, the skin has a certain bacteriostatic action, the harm of microorganisms such as bacteria to the skin can be reduced, and grease secreted by sebaceous glands has a good protective effect on the skin. When the skin contacts with alkaline substances, the grease on the surface is cleaned and removed, and the acidic substances are neutralized, so that the health protection capability of the skin on the surface layer is greatly weakened, and the skin is easy to cause symptoms such as skin allergy, inflammation, red swelling and the like. In addition, organic amine additives tend to have irritating amine odors, which tend to cause human discomfort.

In summary, the organic amine in the water-based cutting fluid has many disadvantages while exerting its specific functions, and the removal of the organic amine component in the formulation is one of the approaches to solve the existing problems. Meanwhile, the fatty acid component in the existing water-based emulsified cutting fluid technical system can be removed or reduced, and therefore, better water quality adaptability is obtained.

The invention provides a novel formula technology of a water-based emulsified cutting fluid, namely a scheme which does not contain organic amine and can realize various functions of the water-based emulsified cutting fluid, and the formula technology is recommended to be used for working conditions such as cutting processing of ferrous metal and nonferrous metal parts.

Disclosure of Invention

The invention aims to provide a biological stable water-based emulsified cutting fluid containing no organic amine and a preparation method thereof, the biological stable water-based emulsified cutting fluid contains no organic amine, can realize various functions of the water-based emulsified cutting fluid, and is particularly suitable for cutting processing of ferrous metal and colored metal parts; in addition, the biological stable water-based emulsified cutting fluid is diluted into aqueous liquid with a certain concentration by water, is used for mechanical processing operation of metal or nonmetal parts, and has excellent performances such as lubrication, rust prevention, microorganism resistance, foam resistance and the like.

In order to achieve the purpose, the invention provides a biological stable water-based emulsified cutting fluid without organic amine, which comprises the following components in percentage by weight: 5-80% of base oil, 0.5-20% of alkaline component, 0-25% of lubricant, 2-20% of anticorrosive agent, 9-36% of surfactant, 0.1-10% of coupling agent, 0-6% of water quality stabilizer, 0.1-6% of bactericide, 0-0.6% of defoaming agent and 0-60% of water.

Preferably, the base oil is naphthenic base mineral oil, and the kinematic viscosity at 40 ℃ of the base oil is 2.80-150 mm²And s. The hydrocarbon compounds in the mineral base oil comprise several types of normal paraffin, isoparaffin, naphthenic hydrocarbon, aromatic hydrocarbon and the like, and the biodegradable sequence is as follows: straight chain alkane > branched chain alkane > cycloalkane > aromatic hydrocarbon > asphaltene. The biodegradation rate of the naphthenic mineral oil is only 0-30%, and the biodegradation rate of the paraffin-based mineral oil is 40-60%, because the required activation energy is higher when polycyclic aromatic hydrocarbons in the mineral oil are oxidized and opened by microorganisms. Therefore, the naphthenic mineral oil has better microbial stability. Furthermore, the compatibility of naphthenic mineral oils with additives is significantly better than that of paraffinic oils. Aromatic hydrocarbons and asphaltenes are not suitable for use in the preparation of water-based emulsion cutting fluids.

The base oil in the invention is used as an additive carrier, and can use naphthenic base mineral oil with one viscosity grade or the compound use of naphthenic base mineral oil with two or more viscosity grades, and the proportion of the naphthenic base mineral oil in the product is as follows: the emulsion stock solution accounts for 30-80 wt%, and the microemulsion accounts for 5-30 wt%.

Preferably, the alkaline component is one or more of sodium hydroxide, sodium carbonate, sodium bicarbonate, sodium benzoate, sodium silicate, sodium molybdate, potassium hydroxide, potassium carbonate, potassium bicarbonate and borax. Sodium nitrite, although having good corrosion resistance, is carcinogenic and is therefore not preferred. The alkaline component is added in a proportion of 0.5-20 wt%, and is dissolved in water and then added into the product.

Preferably, the lubricant is one or more of trimellitate, diisodecyl phthalate, diisotridecyl phthalate, triisotridecyl phthalate, dinieryl oleate, tetrameric ricinoleate, hexapolyricinoleate, SYN-ESTer GY-10, SYN-ESTer GY-25, SYN-ESTer GY-56, SYN-ESTer GY-59, Hostagliss 1510, Hostagliss A, EXTRIMIR 165, EXTRIMIR 168, EXTRIMIR 170, EXTRIMIR175, EXTRIMIR176, KL115, KL135, KL165, KL3100, KL445 VLP, and KL 522. The lubricant selected for use in the present invention is preferably a synthetic ester additive. The glyceride group in the molecule of the natural oil is easy to hydrolyze, and the unsaturated double bond in the ester chain is easy to be attacked by microorganism to generate beta-oxidation or contact with air to be oxidized, so the natural oil is easy to decay, and therefore, the natural oil is not selected. Most of synthetic esters have low toxicity, the biodegradability of the synthetic esters is greatly influenced by molecular structures, the biodegradability of mono-ester, di-ester and polyol ester is good, and the biodegradability of partial aromatic ester is poor. In the existing water-based emulsion cutting fluid technology, synthetic esters such as isooctyl oleate, methyl stearate, isopropyl stearate, trimethylolpropane oleate, trimethylolpropane caprylic decanoate and pentaerythritol oleate are generally used, so that a certain biostability requirement is met, but the water-based emulsion cutting fluid has a greater dependence on an antibacterial system, otherwise, the water-based emulsion cutting fluid is still easily decomposed by microorganisms. From the viewpoint of biological stability, synthetic esters such as trimellitic acid esters, phthalic acid esters, and polymeric esters, which are not readily decomposed and utilized by microorganisms, are preferred, and the cutting fluid can be effectively prevented from undergoing a putrefaction phenomenon. Among the phthalic acid esters, diisodecyl phthalate, diisotridecyl phthalate, and triisotridecyl phthalate are preferable. The preferred polymeric ESTER is SYN-ESTER GY-10, SYN-ESTER GY-25, SYN-ESTER GY-56, SYN-ESTER GY-59 [ SYN-ESTER GY series products are all trade designations of Luborun specialty chemical (Shanghai) Co., Ltd.), or Hostagliss 1510, Hostagliss A [ Hostagliss series products are all trade designations of Clarians chemical (China) Co., Ltd ], or EXTRIMIR 165, EXTRIMIR 168, EXTRIMIR 170, EXTRIMIR175, EXTRIMIR176(EXTRIMIR series products are all trade designations of Micke Co., Ltd., Guangzhou), or KL115, KL135, KL165, KL3100, KL445, VLP 522(KL series products are all trade designations of Italian specialization chemical Co., Ltd.). Dimerized ricinoleate, tetrameric ricinoleate, hexameric ricinoleate are also good options.

Preferably, the anticorrosive agent is one or more of barium petroleum sulfonate (T701), sodium petroleum sulfonate (T702), calcium petroleum sulfonate (T101, T102, T103), barium dinonylnaphthalene sulfonate (T705), neutral barium dinonylnaphthalene sulfonate (T705A), barium polyalkylbenzene sulfonate, 2-aminoethyl heptadecenyl oxazoline dodecenyl succinate (T703), oxidized petroleum fat, barium petroleum fat soap, wool fat magnesium soap, benzotriazole (T706), IRGAET 39 and IRGAET 42. Wherein benzotriazole, IRGAET 39 and IRGAET 42[ IRGAET series products are trademarks of BASF (China) Limited company ] are mainly used for inhibiting corrosion of copper alloy, and the rest anticorrosive agents are mainly used for inhibiting corrosion of ferrous metal. The total adding proportion of the anticorrosive agent is 2-20 wt%, wherein the copper alloy corrosion inhibitor is 0.05-5 wt%.

Preferably, the surfactant is one or more of alkanol polyoxyethylene ether, alkanol polyoxyethylene polyoxypropylene ether, sorbitan fatty acid ester and polyoxyethylene sorbitan fatty acid ester. The surfactant is a key component for forming the amine-free biological stable water-based emulsified cutting fluid, and has the function of forming a stable oil-water interfacial film, so that an oil phase in the product is stably dispersed in water to form the working fluid with stable physicochemical properties and functions.

Surfactants can be classified into four types, i.e., anionic surfactants, cationic surfactants, nonionic surfactants, and amphoteric surfactants, according to their ionization characteristics. Among them, anionic surfactants are not suitable as the main surfactants because they are easily biodegradable. The cationic surfactant has antibacterial property and weak degradation property, but has the problem of compatibility with the anionic surfactant, so the cationic surfactant is selected according to the situation. The nonionic surfactant has better biodegradability as a whole, the basic factors influencing the biodegradability are the ethylene oxide chain length and the linearity of an alkyl chain, and the basic rule is as follows: the longer the polyoxyethylene chain, the slower the decomposition, the poorer the biodegradability; the higher the linearity of the alkyl chain, the stronger the biodegradability; the higher the proportion of polyoxypropylene chains in the block copolymer molecule, the poorer the biodegradability. Amphoteric surfactants are readily biodegradable and are not preferred. The high molecular surfactant belongs to a high molecular compound, and because microorganisms and enzymes thereof are difficult to diffuse into the compound to attack the most sensitive reaction bonds, the biodegradation property of the compound is reduced.

Based on the above-mentioned idea, the nonionic surfactant and the polymeric surfactant which are relatively difficult to be biodegraded are preferably used in the present invention.

The nonionic surfactant can be selected from polyoxyethylene alkanol and polyoxyethylene polyoxypropylene alkanol, wherein the alkyl chain can be a straight chain or has one or more branched chain structures; the carbon chain may have 0 to 3 double bonds. Such as isomeric tridecanol polyoxyethylene ether, oleyl alcohol polyoxyethylene ether, and linear tridecanol polyoxyethylene polyoxypropylene ether.

CxHyO(CH2CRHO)nH

R: h or CH3, x is 8 ~ 25, y is (2x-3) - (2x +1)

As additives having both an emulsifying function and an antirust function, sorbitan fatty acid esters (Span series) and polyoxyethylene sorbitan fatty acid esters (Tween series) surfactants are also good choices, and Span 80 and Tween 60 are representative nonionic surfactants, for example.

The polymer surfactant can be Hypermer A70, Hypermer B246, or Hypermer B261 (product of Hypermer series is product number of Dahlia chemical (Shanghai) Limited Co., Ltd.), or Emulsogen 5781 (product of Clariant chemical (China)) or its mixture.

The surfactant in the invention can be one or more of the nonionic surfactant and the high molecular surfactant, and preferably adopts a scheme of compounding two or more types. The addition proportion of the surfactant in the invention is 20-100% of the total amount of the base oil and the lubricant, and accounts for 9-36 wt% of the total amount of the formula.

Preferably, the coupling agent is one or more of ethylene glycol phenyl ether, propylene glycol phenyl ether, straight-chain alcohol or branched-chain alcohol. The coupling agent selected in the invention is ethylene glycol phenyl ether, propylene glycol phenyl ether, C10-C24 straight chain alcohol or branched chain alcohol, and the function of the coupling agent is to stabilize an oil-water interfacial film and obtain a highly stable water dispersion system. Wherein the linear alcohol is preferably a C12-16 linear alcohol with carbon atoms in the carbon chain, such as C14 linear alcohol; the branched alcohol is preferably 12-18 carbon atoms in the carbon chain, and most preferably 14-15 carbon atoms in the carbon chain, such as Guerbet alcohol ISALCHEM 145 (a commercial product of Soxhol chemical Co., Ltd.).

Preferably, the water quality stabilizer is one or more of disodium ethylene diamine tetraacetate (EDTA-2Na), tetrasodium ethylene diamine tetraacetate (EDTA-4Na), AEC-9Na and AEC-9H (AEC series products are all trade marks of China Committee of chemistry research institute for daily use). The water quality stabilizer is used for shielding the influence of hard water ions such as calcium ions, magnesium ions and the like in the water for dilution and keeping the stability of an emulsification system. The water quality stabilizer is added in a proportion of 0-16 wt%. If sodium ethylenediamine tetraacetate is selected, the sodium ethylenediamine tetraacetate is dissolved by water and then added into the product.

Preferably, the bactericide is hexahydro-1, 3, 5-tris (hydroxyethyl) s-triazine, hexahydro-1, 3, 5-tris (2-hydroxypropyl) s-triazine, hexahydro-1, 3, 5-triethyls-triazine, trimethyl s-triazine, N' -methylenedimorpholine, 4-dimethyloxazolidine, ethyleneglycol bis (hydroxymethyl) ether, 2-butyl-1, 2-benzisothiazolin-3-one, 2-methyl-1, 2-benzisothiazolin-3-one, 5-chloro-2-methyl-4-isothiazolin-3-one, 2-N-octyl-4-isothiazolin-3-one, One or more of benzisothiazolin-3-one, 4-tolyl diiodomethyl sulfone, 1, 2-dibromo-2, 4-dicyanobutane and 2-benzyl-4-chlorophenol. The bactericide is a key component with anti-corrosion performance. In the water-based emulsified cutting fluid, the bactericide has two main purposes, namely, the concentrated solution is protected from going bad in the storage period, and the working solution is prevented from going bad. Particularly, for water-based emulsified cutting fluid with nearly neutral pH value, active anticorrosion measures, namely, the addition of a bactericide to inhibit the propagation of microorganisms, are necessary.

Preferably, the defoaming agent in the present invention is silicone emulsion.

The water selected in the invention is tap water or purified water. Wherein, the water quality of the tap water is in accordance with the technical requirements specified in sanitary Standard for Drinking Water (GB 5749-. The water plays a role of a solvent, solubilization and the like in the invention, and the adding proportion of the water is determined according to the requirements of an emulsification system, and is usually 0-60%.

The invention also provides a preparation method of the gas-to-liquid synthetic compressor oil composition, which comprises the following steps:

step one, taking a cleaning container, and dissolving powder components except the bactericide and the defoaming agent in water for later use;

step two, adding a part of base oil into a clean reaction kettle, and heating the base oil to 40-120 ℃;

adding oil-soluble solid, semisolid and high-viscosity components except the bactericide and the defoaming agent into a reaction kettle, keeping stirring for 20-40 min, and stopping heating after complete dissolution;

step four, adding base oil into the reaction kettle to a sufficient amount, and keeping the temperature in the reaction kettle at 40-50 ℃;

adding other components except the bactericide and the defoaming agent into a reaction kettle, adding the aqueous solution obtained in the step one into the reaction kettle, and keeping stirring for 20-40 min;

and step six, when the temperature in the reaction kettle is reduced to be below 40 ℃, adding a bactericide and a defoaming agent, and keeping stirring for 20-40 min to obtain a finished product.

The invention has the advantages and beneficial effects that: the biostable water-based emulsified cutting fluid does not contain organic amine, can realize various functions of the water-based emulsified cutting fluid, and is particularly suitable for cutting processing of black metal and nonferrous metal parts; in addition, the biostable water-based emulsified cutting fluid is diluted into aqueous liquid with a certain concentration by water, is used for machining metal or nonmetal parts, and has excellent performances such as lubrication, rust prevention, microorganism resistance, foam resistance and the like.

Detailed Description

The following further describes embodiments of the present invention with reference to examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

The invention provides a biological stable water-based emulsified cutting fluid containing no organic amine, which comprises the following components in percentage by weight: 5-80% of base oil, 0.5-20% of alkaline component, 0-25% of lubricant, 2-20% of anticorrosive agent, 9-36% of surfactant, 0.1-10% of coupling agent, 0-6% of water quality stabilizer, 0.1-6% of bactericide, 0-0.6% of defoaming agent and 0-60% of water.

The base oil is naphthenic base mineral oil, and the kinematic viscosity at 40 ℃ of the base oil is 2.80-150 mm²/s。

The alkaline component is one or more of sodium hydroxide, sodium carbonate, sodium bicarbonate, sodium benzoate, sodium silicate, sodium molybdate, potassium hydroxide, potassium carbonate, potassium bicarbonate and borax.

The lubricant is one or more of trimellitate, diisodecyl phthalate, diisotridecyl phthalate, triisotridecyl phthalate, dinierocenol ESTER, tetrapolyricinoleate, hexapolyricinoleate, SYN-ESTer GY-10, SYN-ESTer GY-25, SYN-ESTer GY-56, SYN-ESTer GY-59, Hostagliss 1510, Hostagliss A, EXTRIMIR 165, EXTRIMIR 168, EXTRIMIR 170, EXTRIMIR175, EXTRIMIR176, 115 KL, KL135, KL165, KL3100, KL445 VLP 522 and KL522 VLP.

The anticorrosive agent is one or more of barium petroleum sulfonate (T701), sodium petroleum sulfonate (T702), calcium petroleum sulfonate (T101, T102 and T103), barium dinonylnaphthalene sulfonate (T705), neutral barium dinonylnaphthalene sulfonate (T705A), barium polyalkylbenzene sulfonate, 2-aminoethyl heptadecenyl imidazoiin dodecenyl succinate (T703), oxidized petroleum fat, barium petroleum fat soap, lanolin magnesium soap, benzotriazole (T706), IRGAET 39 and IRGAET 42.

The surfactant is one or more of alkanol polyoxyethylene ether, alkanol polyoxyethylene polyoxypropylene ether, sorbitan fatty acid ester and polyoxyethylene sorbitan fatty acid ester.

The coupling agent is one or more of ethylene glycol phenyl ether, propylene glycol phenyl ether, straight-chain alcohol or branched-chain alcohol.

The water quality stabilizer is one or more of disodium ethylene diamine tetraacetate (EDTA-2Na), tetrasodium ethylene diamine tetraacetate (EDTA-4Na), AEC-9Na and AEC-9H.

The bactericide is hexahydro-1, 3, 5-tri (hydroxyethyl) s-triazine, hexahydro-1, 3, 5-tri (2-hydroxypropyl) s-triazine, hexahydro-1, 3, 5-triethyl s-triazine, trimethyl s-triazine, N' -methylenedimorpholine, 4-dimethyloxazolidine, ethylene glycol bis (hydroxymethyl) ether, 2-butyl-1, 2-benzisothiazolin-3-one, 2-methyl-1, 2-benzisothiazolin-3-one, 5-chloro-2-methyl-4-isothiazolin-3-one, 2-octyl-4-isothiazolin-3-one, One or more of benzisothiazolin-3-one, 4-tolyl diiodomethyl sulfone, 1, 2-dibromo-2, 4-dicyanobutane and 2-benzyl-4-chlorophenol.

The invention also provides a preparation method of the biological stable water-based emulsified cutting fluid without the organic amine, which comprises the following steps:

The technical scheme of the specific implementation of the invention comprises the following steps:

example 1

The microemulsion cutting fluid product is prepared from the microemulsion cutting fluid, and the water diluent is semitransparent and has excellent lubricating, antirust, biological stability and other properties.

The preparation process of example 1 is as follows:

step one, taking a cleaning container, and dissolving potassium hydroxide and ethylene diamine tetraacetic acid tetrasodium in water for later use;

step two, adding naphthenic base mineral oil accounting for 10 wt% of the total weight of the product into a reaction kettle, and heating to 60 ℃;

step three, sequentially adding barium dinonylnaphthalene sulfonate, oxidized petroleum fat, Extrimor 168 and Hypermer A70 into a reaction kettle, stirring for 30min, and then stopping heating;

step four, putting all naphthenic base mineral oil into the reaction kettle, and maintaining the temperature at 40-50 ℃;

step five, sequentially adding IRGAME 39, oleyl alcohol polyoxyethylene (20) ether, isomeric tridecyl alcohol polyoxyethylene (7) ether, Span 80, hexapolyricinoleate, Tween 80, Guerbet alcohol, the aqueous solution of potassium hydroxide and tetrasodium ethylene diamine tetraacetate obtained in the step one into a reaction kettle, and stirring for 20 min;

and sixthly, keeping stirring, and when the temperature of the liquid in the reaction kettle is reduced to be below 40 ℃, sequentially adding N, N' -methylenedimorpholine, 2-methyl-4-isothiazoline-3-ketone, 3-iodo-2-propiolic alcohol-butyl carbamate and emulsified silicone oil to obtain a finished product.

Example 2

The preparation process of the embodiment 2 comprises the following steps:

step one, taking a clean container, and dissolving potassium hydroxide in water for later use;

step two, adding naphthenic base mineral oil accounting for 10 wt% of the total weight of the product into a reaction kettle, and heating to 90 ℃;

step three, sequentially adding barium petroleum sulfonate and Hypermer A70 into the reaction kettle, stirring for 30min, and then stopping heating;

step five, sequentially adding AEC-9H, sodium petroleum sulfonate, diisodecyl phthalate, oleyl alcohol polyoxyethylene (20) ether, isomeric tridecyl alcohol polyoxyethylene (9) ether, tetrapoly ricinoleate, Guerbet alcohol, IRGAME 39 and the aqueous solution of potassium hydroxide obtained in the step one into a reaction kettle, and stirring for 20 min;

and sixthly, stirring is kept, and when the temperature of liquid in the reaction kettle is reduced to be below 40 ℃, N' -methylene-bis-morpholine, 2-methyl-4-isothiazoline-3-ketone, 2-butyl-1, 2-benzisothiazolin-3-ketone and emulsified silicone oil are sequentially added to obtain a finished product.

Example 3

The cutting fluid is an emulsified cutting fluid product, and the water diluent is milk white, so that the cutting fluid has excellent performances of lubrication, rust prevention, biological stability and the like.

The preparation process of example 3 is:

step one, taking a clean container, and dissolving sodium hydroxide and AEC-9Na in water;

step two, 10 wt% of naphthenic base mineral oil (V40 is 22.6 mm) of the total amount of the product²/s) adding the mixture into a reaction kettle, and heating the mixture to 60 ℃;

step three, sequentially adding barium dinonylnaphthalene sulfonate, oxidized petroleum fat, SYN-ESTER GY-25 and Hypermer B246 into a reaction kettle, stirring for 30min, and then stopping heating;

adding oleyl alcohol polyoxyethylene (20) ether, isomeric tridecyl alcohol polyoxyethylene (9) ether, isomeric decyl alcohol polyoxyethylene (7) ether, dimeric ricinoleate, tetrameric ricinoleate, Guerbet alcohol, IRGAME 42, the aqueous solution of sodium hydroxide and AEC-9Na obtained in the first step into a reaction kettle in sequence, and stirring for 25 min;

and sixthly, keeping stirring, and when the temperature of the liquid in the reaction kettle is reduced to be below 40 ℃, sequentially adding N, N' -methylenedimorpholine, benzisothiazolin-3-one, 3-iodo-2-propiolic alcohol-butyl carbamate and emulsified silicone oil to obtain a finished product.

Example 4

The preparation process of example 4 is as follows:

step one, taking a clean container, and dissolving potassium hydroxide and sodium carbonate in water;

step two, adding naphthenic base mineral oil (V40 is 9.1 mm) with the total weight of 10 wt% of the product into the reaction kettle²Per second), heating to 60 ℃;

step one, sequentially adding barium dinonylnaphthalenesulfonate, AEC-9H, KL135, KL445 and Emulsogen 5781 into a reaction kettle, stirring for 20min, and then stopping heating;

step three, putting all naphthenic base mineral oil into the reaction kettle, maintaining the temperature at 40-50 ℃,

step four, sequentially adding oleyl alcohol polyoxyethylene (20) ether, isomeric tridecyl alcohol polyoxyethylene (9) ether, isomeric tridecyl alcohol polyoxyethylene (7) ether, tetrapolyricinoleate, KL445, Guerbet alcohol, the aqueous solution of potassium hydroxide and sodium carbonate obtained in the step one into a reaction kettle, and keeping stirring for 25 min;

and sixthly, keeping stirring, and when the temperature of the liquid in the reaction kettle is reduced to be below 40 ℃, sequentially adding N, N' -methylenedimorpholine, 3-iodo-2-propiolic alcohol-butyl carbamate and emulsified silicone oil to obtain a finished product.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the technical principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.

Claims

1. The organic amine-free biological stable water-based emulsified cutting fluid is characterized by comprising the following components in percentage by weight: 5-80% of base oil, 0.5-20% of alkaline component, 0-25% of lubricant, 2-20% of anticorrosive agent, 9-36% of surfactant, 0.1-10% of coupling agent, 0-6% of water quality stabilizer, 0.1-6% of bactericide, 0-0.6% of defoaming agent and 0-60% of water.

2. The organic amine-free biostable water-based emulsion cutting fluid as claimed in claim 1, wherein the base oil is naphthenic mineral oil, and the kinematic viscosity at 40 ℃ of the naphthenic mineral oil is 2.80-150 mm²/s。

3. The organic amine-free biologically stable water-based emulsion cutting fluid as claimed in claim 1, wherein the alkaline component is one or more of sodium hydroxide, sodium carbonate, sodium bicarbonate, sodium benzoate, sodium silicate, sodium molybdate, potassium hydroxide, potassium carbonate, potassium bicarbonate and borax.

4. The organic amine-free biostable water-based emulsified cutting fluid as claimed in claim 1, wherein the lubricant is one or more of trimellitate, diisodecyl phthalate, diisotridecyl phthalate, triisotridecyl phthalate, dinierein, tetrapolyricinoleate, hexapolyricinoleate, SYN-enter GY-10, SYN-enter GY-25, SYN-enter GY-56, SYN-enter GY-59, hostagiss 1510, hostagiss a, EXTRIMIR 165, EXTRIMIR 168, EXTRIMIR 170, EXTRIMIR175, EXTRIMIR176, KL115, KL3100, KL165, KL445, KL VLP 445, KL 522.

5. The organic amine-free biostable water-based emulsion cutting fluid as claimed in claim 1, wherein the corrosion inhibitor is one or more of barium petroleum sulfonate (T701), sodium petroleum sulfonate (T702), calcium petroleum sulfonate (T101, T102, T103), barium dinonylnaphthalene sulfonate (T705), neutral barium dinonylnaphthalene sulfonate (T705A), barium dialkylbenzene sulfonate, 2-aminoethyl heptadecenyl imidazoline dodecenyl succinate (T703), oxidized petroleum ester, barium petroleum ester oxide soap, magnesium lanolate soap, benzotriazole (T706), IRGAET 39 and IRGAET 42.

6. The organic amine-free biostable water-based emulsified cutting fluid as claimed in claim 1, wherein the surfactant is one or more of polyoxyethylene alkanol ether, polyoxyethylene polyoxypropylene alkanol ether, sorbitan fatty acid ester, and polyoxyethylene sorbitan fatty acid ester.

7. The organic amine-free biostable water-based emulsion cutting fluid as claimed in claim 1, wherein the coupling agent is one or more of ethylene glycol phenyl ether, propylene glycol phenyl ether, straight-chain alcohol or branched-chain alcohol.

8. The organic amine-free biologically stable water-based emulsified cutting fluid as claimed in claim 1, wherein the water stabilizer is one or more of disodium ethylenediaminetetraacetate (EDTA-2Na), tetrasodium ethylenediaminetetraacetate (EDTA-4Na), AEC-9Na, and AEC-9H.

9. The organic amine-free biostable water-based emulsion cutting fluid according to claim 1, wherein the bactericide is hexahydro-1, 3, 5-tris (hydroxyethyl) s-triazine, hexahydro-1, 3, 5-tris (2-hydroxypropyl) s-triazine, hexahydro-1, 3, 5-triethyls-triazine, trimethyl s-triazine, N' -methylenebismorpholine, 4-dimethyloxazolidine, ethylene glycol bis-hydroxymethyl ether, 2-butyl-1, 2-benzisothiazolin-3-one, 2-methyl-1, 2-benzisothiazolin-3-one, 5-chloro-2-methyl-4-isothiazolin-3-one, 2-methyl-4-isothiazolin-3-one, 2-n-octyl-4-isothiazolin-3-one, benzisothiazolin-3-one, 4-tolyl diiodomethyl sulfone, 1, 2-dibromo-2, 4-dicyanobutane and 2-benzyl-4-chlorophenol.

10. The method for preparing the biostable water-based emulsion cutting fluid without the organic amine in any one of claims 1 to 9, comprising the following steps: