CN111349525A - Steel degreasing and paraffin removal agent and preparation method thereof - Google Patents

Abstract

The invention relates to the technical field of metal cleaning agents, in particular to a steel degreasing wax remover. The steel degreasing and dewaxing agent is prepared from the following raw materials in parts by weight: 28-35 parts of sodium metasilicate pentahydrate, 8-15 parts of sodium tripolyphosphate, 30-35 parts of sodium carbonate, 3-7 parts of peregal O-250.9-1.8 parts of sulfonic acid, 3.5-7 parts of nonylphenol polyoxyethylene ether, 0.5-3 parts of nitrilotriacetic acid, 7-15 parts of dipropyl ethanol methyl ether, 0.4-2 parts of methylene dinaphthalene sodium sulfonate and 1-6 parts of BNN. The degreasing wax removal powder provided by the invention is simple in preparation, durable, low in usage amount, low in treatment cost and good in degreasing effect efficiency.

Description

Steel degreasing and paraffin removal agent and preparation method thereof

Technical Field

The invention relates to the technical field of metal wax removers, in particular to a steel degreasing wax remover and a preparation method thereof.

Background

During the manufacturing, transportation, storage and use of the metal workpiece, the surface of the metal workpiece is polished due to the requirements of machining, rust prevention and the like. After the metal workpiece is polished by the polishing wax, the dirt components on the surface of the metal workpiece mainly comprise paraffin, fatty acid, rosin soap, metal oxide, abrasive, mineral oil, animal and vegetable oil, natural wax and a plurality of pieces of polishing cloth, and the powder and the oxide of the metal matrix which are polished out. Wax scale adheres to the workpiece by mechanical adsorption, intermolecular adsorption, electrostatic adsorption, etc., and particles having a diameter of less than 0.1 μm are difficult to remove.

The key point of the preparation of the wax removal cleaning agent is that the reasonable compounding of various surfactants, auxiliary agents, corrosion inhibitors, cosolvents and other components is carried out. By reducing the surface tension, the wetting permeability and the emulsifying, dissolving and dispersing solubilization properties are improved, so that the permeability and the dissolving power of the product are enhanced, and the aim of quickly removing wax dirt is fulfilled.

The existing compound cleaning agent generally has the defects of complex preparation, large using amount and low wax removal efficiency.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide the wax removal cleaning agent which is simple in configuration, durable, low in usage amount, superior to common like products in quality, low in treatment cost and high in degreasing effect efficiency.

In order to achieve the technical effects, the invention adopts the technical scheme that:

the steel degreasing and dewaxing agent is prepared from the following raw materials in parts by weight:

28-35 parts of sodium metasilicate pentahydrate, 8-15 parts of sodium tripolyphosphate, 30-35 parts of sodium carbonate, 3-7 parts of peregal O-250.9-1.8 parts of sulfonic acid, 3.5-7 parts of nonylphenol polyoxyethylene ether, 0.5-3 parts of nitrilotriacetic acid, 7-15 parts of dipropyl ethanol methyl ether, 0.4-2 parts of methylene dinaphthalene sodium sulfonate and 1-6 parts of BNN.

Preferably, the degreasing wax removing agent is prepared from the following raw materials in parts by mass:

30 parts of sodium metasilicate pentahydrate, 10 parts of sodium tripolyphosphate, 33 parts of sodium carbonate, peregal O-251.5 parts, 4.5 parts of sulfonic acid, 5.5 parts of nonylphenol polyoxyethylene ether, 1 part of nitrilotriacetic acid, 10 parts of dipropyl ethanol methyl ether, 1.5 parts of methylene dinaphthalene sodium sulfonate and 3 parts of BNN.

Further, the preparation method of the steel degreasing and dewaxing agent comprises the following steps:

a. weighing sodium carbonate according to the formula amount, adding sulfonic acid according to the formula amount, and uniformly mixing to obtain a mixture A;

b. weighing sodium metasilicate pentahydrate and sodium tripolyphosphate according to the formula amount, adding the sodium metasilicate pentahydrate and the sodium tripolyphosphate according to the formula amount into the mixture A, and mixing to obtain a mixture B;

c. weighing nonylphenol polyoxyethylene ether according to the formula amount, adding the nonylphenol polyoxyethylene ether into dipropyl ethanol methyl ether according to the formula amount, uniformly mixing, adding the mixture into the mixture B, and uniformly mixing to obtain a mixture C;

d. heating and melting the peregal O-25 in the formula amount to be transparent, adding the mixture into the mixture C, and uniformly mixing to obtain a mixture D;

e. and sequentially adding nitrilotriacetic acid, sodium methylene dinaphthalene sulfonate and BNN in formula amount into the mixture D, and uniformly mixing to obtain the steel degreasing and dewaxing agent.

Further, the melting temperature in the step d is 50-65 ℃.

Compared with the prior art, the invention has the following beneficial effects:

the degreasing wax-removing agent provided by the invention has the advantages of simple preparation method, low manufacturing cost, good degreasing wax-removing effect at low temperature, low consumption, high treatment efficiency and capability of greatly reducing the treatment cost of workpieces.

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail. The following examples are merely for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Examples 1 to 5 were as shown in Table 1, and comparative examples 6 to 10 were as shown in Table 2, and the steel degreasing and dewaxing agents were prepared according to the following preparation methods in the amounts shown in tables 1 and 2, respectively:

table 1: examples 1 to 5 Each component ratio (parts by mass)

Table 2: comparative examples 6 to 12 respective component ratios (parts by mass)

The preparation method comprises the following steps:

a. weighing sodium carbonate according to the formula amount, adding sulfonic acid according to the formula amount, putting into a stirrer together, and mixing for 5-10min to obtain a mixture A;

b. weighing sodium metasilicate pentahydrate and sodium tripolyphosphate according to the formula amount, adding the sodium metasilicate pentahydrate and the sodium tripolyphosphate according to the formula amount into the mixture A, continuously stirring for 4-8min, and uniformly mixing to obtain a mixture B;

c. weighing nonylphenol polyoxyethylene ether according to the formula amount, adding the nonylphenol polyoxyethylene ether into dipropyl ethanol methyl ether according to the formula amount, uniformly mixing, adding the mixture into the mixture B, stirring for 5-10min, and uniformly mixing to obtain a mixture C;

d. heating and melting peregal O-25 with the formula amount at 50-65 ℃ to be transparent, adding the mixture into the mixture C, and stirring for 6-12min to obtain a mixture D;

e. and sequentially adding nitrilotriacetic acid, sodium methylene dinaphthalene sulfonate and BNN in formula amount into the mixture D, and starting a stirrer to stir at the same rotating speed for 5-10min to obtain the steel degreasing and dewaxing agent.

The steel degreasing and dewaxing agents prepared in examples 1 to 5 and the degreasing and dewaxing powders prepared in examples 6 to 9 were subjected to cleaning experiments according to the following steps:

s1, preparing a steel test piece, namely adopting No. 45 steel with the size of 50mm × 25mm × 5mm as the test piece;

s2: preparation of a test solution: preparing a 4% aqueous solution as a treatment solution by using deionized water for the steel degreasing and dewaxing agents prepared in the embodiments 1 to 9;

s3: preparing the artificial oil stain according to the following mass ratio formula:

the formula is as follows: 8% of barium petroleum sulfonate, 3.5% of lanolin magnesium soap, 2% of lanolin, 30% of industrial vaseline, 34.5% of No. 20 machine oil, 12% of No. 30 machine oil, 2% of calcium-based lubricating grease and 8% of aluminum oxide;

the preparation method comprises the following steps: weighing industrial vaseline, No. 20 mechanical oil and No. 30 mechanical oil according to the formula amount, mixing, heating to about 120 ℃ for uniform melting, pouring barium petroleum sulfonate, lanolin magnesium soap, lanolin and calcium-based lubricating grease according to the formula amount, and stirring for melting. Controlling the temperature not to exceed 130 ℃, stopping heating after the aluminum oxide powder is completely dissolved, uniformly stirring, cooling to room temperature, and storing in a refrigerator at the temperature of 5-10 ℃ for later use.

S4: coating oil stains: and (2) placing the prepared stainless steel test piece in the step S1 in an oven at 40 +/-2 ℃ for drying for 30min, transferring the test piece into a dryer for cooling, weighing to 0.1mg, horizontally placing the weighed test piece on dried filter paper, uniformly coating artificial oil stains to the lower 2/3 part of one side of the test piece by using a knife, leaving the other surfaces uncoated, wiping off the excessive oil stains on the two sides and the bottom edge of the test piece by using the filter paper, controlling the coating amount of the oil stains to be about 0.3g, placing the coated test piece into a constant-temperature drying oven at 40 +/-2 ℃ for drying for 50min, taking out the test piece, wiping off the oil stains on the bottom edge, cooling in the dryer, and weighing to 0.1 mg.

S5: cleaning: pouring 400ml of cleaning agent solution into a 500ml beaker, and swinging and washing under the water bath condition of (50 +/-2) DEG C to ensure that the surface of the test piece is vertical to the swinging direction, wherein the swinging and washing conditions are as follows:

directly performing swinging washing without soaking, treating 5 test pieces by each group of treatment solution for 20s, 30s, 50s, 80s and 120s respectively, taking out the test pieces after the treatment, swinging washing the test pieces in distilled water at the temperature of (50 +/-2) DEG C for 10s, immediately drying the test pieces for 2h at the temperature of (40 +/-2) DEG C, taking out the test pieces, touching the test pieces by hands, spraying a little distilled water on the test pieces by using a sprayer, observing the condition of water drops attached to the surfaces of the test pieces, and evaluating according to the following standards:

1. the surface is basically free from water beads;

2. a little water drops are attached to the surface or little oil stains are still left on the surface by touching with hands;

3. a large amount of water drops are attached to the surface, and obvious oil stains are still left on the surface by touching with hands;

the results of the degreasing effect comparison are shown in Table 3.

Table 3: comparison of degreasing effects of examples 1-12

As can be seen from Table 3:

from examples 1 to 5, it is understood that the wax removal effect of example 3 is the best, and after the treatment time exceeds 50 seconds, substantially no water beads are attached, no oil stain is left to the touch, and the degree of cleanliness is high, and it is described that the surfactant in example 3 is the best in performance when blended, and the detergency is the highest when the amount used is small.

From examples 7 to 12, it can be seen that the wax removal effect is the worst when no sulfonic acid, nonylphenol polyoxyethylene ether or sodium methylene dinaphthalenesulfonate is added, more water droplets are attached, and the treatment time is short, so that a large amount of oil stains which are not cleaned can be seen by naked eyes.

The steel degreasing wax remover prepared by the method has the following main construction parameters:

1. concentration of bath solution (g/L): 40-80;

2. treatment temperature (. degree. C.): 50-90;

3. the cleaning mode can be soaking, scrubbing and ultrasonic cleaning;

the above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (4)

1. The steel degreasing and dewaxing agent is characterized by being prepared from the following raw materials in parts by weight:

28-35 parts of sodium metasilicate pentahydrate, 8-15 parts of sodium tripolyphosphate, 30-35 parts of sodium carbonate, 3-7 parts of peregal O-250.9-1.8 parts of sulfonic acid, 3.5-7 parts of nonylphenol polyoxyethylene ether, 0.5-3 parts of nitrilotriacetic acid, 7-15 parts of dipropyl ethanol methyl ether, 0.4-2 parts of methylene dinaphthalene sodium sulfonate and 1-6 parts of BNN.

2. The steel degreasing and dewaxing agent as claimed in claim 1, wherein the dewaxing agent is prepared from the following raw materials in parts by weight:

30 parts of sodium metasilicate pentahydrate, 10 parts of sodium tripolyphosphate, 33 parts of sodium carbonate, peregal O-251.5 parts, 4.5 parts of sulfonic acid, 5.5 parts of nonylphenol polyoxyethylene ether, 1 part of nitrilotriacetic acid, 10 parts of dipropyl ethanol methyl ether, 1.5 parts of methylene dinaphthalene sodium sulfonate and 3 parts of BNN.

3. The preparation method of the steel degreasing and dewaxing agent as claimed in claim 1, comprising the following steps:

a. weighing sodium carbonate according to the formula amount, adding sulfonic acid according to the formula amount, and uniformly mixing to obtain a mixture A;

b. weighing sodium metasilicate pentahydrate and sodium tripolyphosphate according to the formula amount, adding the sodium metasilicate pentahydrate and the sodium tripolyphosphate according to the formula amount into the mixture A, and mixing to obtain a mixture B;

c. weighing nonylphenol polyoxyethylene ether according to the formula amount, adding the nonylphenol polyoxyethylene ether into dipropyl ethanol methyl ether according to the formula amount, uniformly mixing, adding the mixture into the mixture B, and uniformly mixing to obtain a mixture C;

d. heating and melting the peregal O-25 in the formula amount to be transparent, adding the mixture into the mixture C, and uniformly mixing to obtain a mixture D;

e. and sequentially adding nitrilotriacetic acid, sodium methylene dinaphthalene sulfonate and BNN in formula amount into the mixture D, and uniformly mixing to obtain the steel degreasing and dewaxing agent.

4. The method for preparing the steel degreasing and dewaxing agent as claimed in claim 1, wherein the method comprises the following steps: the melting temperature in the step d is 50-65 ℃.