CN111286743A

CN111286743A - Functional metal cleaning agent and preparation method thereof

Info

Publication number: CN111286743A
Application number: CN202010115273.6A
Authority: CN
Inventors: 申广生
Original assignee: Shanghai Qingpeng Metal Products Co Ltd
Current assignee: Shanghai Qingpeng Metal Products Co Ltd
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-06-16

Abstract

The invention relates to the technical field of cleaning, and particularly discloses a functional metal cleaning agent and a preparation method thereof. The preparation raw materials at least comprise the following components in parts by weight: 5-10 parts of first block polyether, 10-20 parts of second block polyether, 8-15 parts of alkylphenol polyoxyethylene, 5-10 parts of dispersing agent, 3-8 parts of antirust agent and 40-60 parts of water. The cleaning agent has strong detergency and low foam, and can remove residual substances generated on the surfaces of mechanical parts in the processing process.

Description

Functional metal cleaning agent and preparation method thereof

Technical Field

The invention relates to the technical field of cleaning, in particular to a functional metal cleaning agent and a preparation method thereof.

Background

In the production of mechanical industry, the metal surface is cleaned whether in the process of processing and assembling parts, or in the process of heat treatment, electroplating, product sealing, packaging and unsealing. The dirt adhering to the metal surface includes solid dirt and liquid dirt such as various acids, alkalis, salts, dusts, polishing pastes, cutting liquids, hand perspiration, and various oils and fats. The dirt is water-soluble and oil-soluble, and if the dirt is not cleaned, the dirt not only influences the smooth operation of each processing procedure of the metal, but also causes or accelerates the corrosion of the metal, reduces the quality of the product and shortens the service life.

The metal surface cleaning agent comprises a water-based cleaning agent, a solvent cleaning agent and an alkaline cleaning agent. The solvent cleaning agent has strong decontamination capability, is easy to clean dirt on the surface of metal, is flammable, explosive and volatile, has strong irritation to central nerve of a human body, and is easy to rust the metal. Meanwhile, a large amount of energy is wasted, and environmental pollution is caused. The chlorinated hydrocarbon solvent cleaning agent has strong cleaning capability, is easy to clean oily dirt on the surface of metal, but the solvent has high toxicity and is harmful to human bodies, and is usually used for closed cleaning. The water-based cleaning agent utilizes the characteristic that water is a good polar solvent, weakens the adhesive force of pollutants on the metal surface through the wetting and penetrating action of a surfactant, and enables the pollutants to be separated from the metal surface more quickly by an auxiliary cleaning means, thereby achieving the effect of decontamination. The water-based cleaning agent is safe, environment-friendly and low in price, and the required chemical components are easily obtained, so that the water-based cleaning agent is a metal cleaning agent widely popularized at present. There are two problems, however: on one hand, the cleaned workpiece is easy to rust, and on the other hand, the workpiece cannot be cleaned by spraying due to the foam.

Disclosure of Invention

In order to solve the technical problems, the first aspect of the invention provides a functional metal cleaner, which at least comprises the following raw materials in parts by weight: 5-10 parts of first block polyether, 10-20 parts of second block polyether, 8-15 parts of alkylphenol polyoxyethylene, 5-10 parts of dispersing agent, 3-8 parts of antirust agent and 40-60 parts of water.

As a preferable technical scheme of the invention, the molecular weight of the first block polyether is 1700-2000.

In a preferred embodiment of the present invention, the HLB value of the first block polyether is 8 to 12.

In a preferred embodiment of the present invention, the second block polyether has a viscosity of 250 to 300 at 25 ℃.

As a preferred technical scheme of the invention, the molecular weight of the second block polyether is 1900-2200.

In a preferred embodiment of the present invention, the alkylphenol ethoxylate has a cloud point of 40 to 100 in a 1% aqueous solution.

As a preferable technical scheme of the invention, the alkylphenol ethoxylates is one or more selected from the group consisting of SOPE-10, SOPE-15 and SOPE-20.

As a preferable technical scheme of the invention, the alkylphenol polyoxyethylene is a combination of SOPE-10 and SOPE-20, wherein the mass ratio of SOPE-10 to SOPE-20 is 1: (1-5).

In a preferred embodiment of the present invention, the dispersant is one or more selected from alkyl glycoside, polysiloxane-polyether copolymer, and stearate.

The second aspect of the invention provides a preparation method of a functional metal cleaner, which at least comprises the following steps: and mixing the first block polyether, the second block polyether, alkylphenol polyoxyethylene, a dispersing agent, an antirust agent and water, and uniformly stirring to obtain the antirust agent.

Has the advantages that: the invention provides a functional metal cleaning agent, which comprises the raw materials of block polyether, alkylphenol ethoxylates, a dispersing agent, an antirust agent and water, wherein the two block polyethers are selected for compounding by controlling the physical property parameters of the block polyether, such as molecular weight, hydrophilic-lipophilic balance value, viscosity and the like, and simultaneously have the polyoxyethylene synergistic effect with the alkylphenol ethoxylates, so that the cleaning agent not only has the effects of oil removal, rust removal and phosphorization, but also has the effects of moisture prevention, rust prevention, stain resistance and weather resistance, and the surface of a cleaned metal object is bright and beautiful; in addition, the metal cleaning agent has the advantages of easily available preparation raw materials, low price, simple process, short preparation period, excellent performance, wide test range, capability of being used at normal temperature, capability of being wiped, brushed, dipped and sprayed, less waste residue discharge, less environmental damage and no damage to metal; the cleaning agent has the advantages of simple use, use at normal temperature, strong detergency, low foam and capability of removing residual substances generated on the surface of a mechanical part in the processing process.

Detailed Description

The disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.

The term "prepared from …" as used herein is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.

The conjunction "consisting of …" excludes any unspecified elements, steps or components. If used in a claim, the phrase is intended to claim as closed, meaning that it does not contain materials other than those described, except for the conventional impurities associated therewith. When the phrase "consisting of …" appears in a clause of the subject matter of the claims rather than immediately after the subject matter, it defines only the elements described in the clause; other elements are not excluded from the claims as a whole.

When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.

The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. "optional" or "any" means that the subsequently described event or events may or may not occur, and that the description includes instances where the event occurs and instances where it does not.

Approximating language, as used herein throughout the specification and claims, is intended to modify a quantity, such that the invention is not limited to the specific quantity, but includes portions that are literally received for modification without substantial change in the basic function to which the invention is related. Accordingly, the use of "about" to modify a numerical value means that the invention is not limited to the precise value. In some instances, the approximating language may correspond to the precision of an instrument for measuring the value. In the present description and claims, range limitations may be combined and/or interchanged, including all sub-ranges contained therein if not otherwise stated.

In addition, the indefinite articles "a" and "an" preceding an element or component of the invention are not intended to limit the number requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be read to include one or at least one, and the singular form of an element or component also includes the plural unless the stated number clearly indicates that the singular form is intended.

In a preferred embodiment, the functional metal cleaner is prepared from at least the following raw materials in parts by weight: 6-9 parts of first block polyether, 12-18 parts of second block polyether, 10-13 parts of alkylphenol polyoxyethylene, 7-9 parts of dispersant, 4-7 parts of antirust agent and 45-55 parts of water.

In a most preferred embodiment, the functional metal cleaner is prepared from at least the following raw materials in parts by weight: 8 parts of first block polyether, 15 parts of second block polyether, 12 parts of alkylphenol polyoxyethylene, 8 parts of dispersing agent, 6 parts of antirust agent and 50 parts of water.

Block polyethers

The block polyether is a polymer obtained by ring opening homopolymerization or copolymerization of a compound containing an active hydrogen group, ethylene oxide and propylene oxide serving as raw materials under the action of a catalyst. The viscosity-pressure characteristic of the polyether is determined by the chemical structure and the length of a molecular chain, and the viscosity-pressure coefficient is generally lower than that of mineral oil with the same viscosity; the polyether generally has a lower condensation point and better low-temperature fluidity; polyethers of different solubilities can be obtained by adjusting the proportion of ethylene oxide in the polyether molecule, and the higher the proportion of ethylene oxide, the higher the solubility in water. The water solubility increases with decreasing molecular weight and increasing proportion of terminal hydroxyl groups. Based on the properties, the polyether is long-term used for detergents and cleaning surfactants, and has low foam and high decontamination capability; can also be used as emulsifier, wetting agent, defoaming agent, demulsifier, dispersant, antistatic agent, foam control agent, etc., and can be used in the fields of cosmetics, industrial cleaning, textile processing, etc.

First block polyether

In a preferred embodiment, the first block polyether of the present invention has a molecular weight of 1700 to 2000.

In a more preferred embodiment, the first block polyether of the present invention has a molecular weight of 1800 to 1900.

In a preferred embodiment, the first block polyether of the present invention has an HLB value of from 8 to 12.

In a preferred embodiment, the first block polyether of the present invention has an HLB value of from 9 to 11.

Second block polyether

In a preferred embodiment, the second block polyethers according to the invention have a viscosity of 250 to 300CPS at 25 ℃.

In a more preferred embodiment, the second block polyether of the present invention has a viscosity at 25 ℃ of 260 to 290 CPS.

In a preferred embodiment, the second block polyether of the present invention has a molecular weight of 1900 to 2200.

In a more preferred embodiment, the second block polyether of the present invention has an average molecular mass of 1900 to 2100.

Alkylphenol ethoxylates

The alkylphenol polyoxyethylene ether is an important polyoxyethylene type nonionic surfactant, has the characteristics of stable property, acid and alkali resistance, low cost and the like, is mainly used for producing high-performance detergents, is one of the most common main raw materials in printing and dyeing auxiliaries, and is required to be added in various printing and dyeing auxiliaries such as detergents, scouring agents, spinning oil agents, softeners, crude oil, metal cleaning agents and the like for a long time.

In a preferred embodiment, the alkylphenol ethoxylates of the present invention have a cloud point in a 1% aqueous solution of from 40 to 100.

In a more preferred embodiment, the alkylphenol ethoxylates of the present invention have a cloud point in a 1% aqueous solution of from 60 to 90.

In a more preferred embodiment, the alkylphenol ethoxylates of the present invention are selected from one or more of the group consisting of SOPE-10, SOPE-15, and SOPE-20.

In a more preferred embodiment, the alkylphenol ethoxylates of the present invention are a combination of SOPE-10 and SOPE-20, wherein the mass ratio of SOPE-10 to SOPE-20 is 1: (1-5).

In a most preferred embodiment, the alkylphenol ethoxylates of the present invention are a combination of SOPE-10 and SOPE-20, wherein the mass ratio of SOPE-10 to SOPE-20 is 1: 3.

dispersing agent

The Dispersant (Dispersant) of the invention is a surfactant which has two opposite properties of lipophilicity and hydrophilcity in a molecule. Can uniformly disperse solid and liquid particles of inorganic and organic pigments which are difficult to dissolve in liquid, can prevent the particles from settling and coagulating, forms an amphiphilic agent required by a stable suspension, particularly promotes the dispersibility of each component in the cleaning agent, and further improves the cleanliness of metal surfaces.

In a preferred embodiment, the dispersant of the present invention is selected from one or more of alkyl glycoside, polysiloxane-polyether copolymer, stearate.

Examples of alkyl glycosides include APG0814, APG1214, APG1216, APG0816, APG0810, and APG 1218.

Examples of the stearate include barium stearate, sodium stearate, and zinc stearate.

In a preferred embodiment, the dispersant of the present invention is an alkyl glycoside.

In a more preferred embodiment, the dispersant of the present invention is APG0814 and APG1214, wherein the mass ratio of APG0814 to APG1214 is 1: (0.5-1.5).

In a most preferred embodiment, the dispersant of the present invention is APG0814 and APG1214, wherein the mass ratio of APG0814 to APG1214 is 1: (0.8-1.2).

Rust inhibitor

The antirust agent is a chemical product which is easy to rust in the production, processing and transportation processes of metal workpieces, so that a layer of film needs to be formed on the surface of metal by using antirust oil to prevent the metal from rusting. In particular, it is difficult for machines to be operated and stored without contact with oxygen, moisture or other corrosive media in the air, which are electrochemically corroded on the metal surface to cause rusting, and rust inhibitors prevent the contact of the above substances with the metal. The antirust belongs to one kind of antirust product, and other types of antirust oil, antirust paper and the like.

In a preferred embodiment, the rust inhibitor of the present invention is selected from one or more of oleic acid diethanolamidoborate, ricinoleic acid diethanolamidoborate, and coconut oil diethanolamidoborate.

In a most preferred embodiment, the rust inhibitor of the present invention is coconut diethanolamide borate.

It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention.

In addition, the raw materials used are commercially available from national chemical reagents, unless otherwise specified.

Examples

In order to better understand the above technical solutions, the following detailed descriptions will be provided with reference to specific embodiments. It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention. In addition, the raw materials are commercially available and the extraction methods of the extract are all conventional extraction methods, if not otherwise specified.

Example 1

Embodiment 1 provides a functional metal cleaner, which comprises the following raw materials: 8 parts of first block polyether, 15 parts of second block polyether, 12 parts of alkylphenol polyoxyethylene, 8 parts of dispersing agent, 6 parts of antirust agent and 50 parts of water.

The molecular weight of the first block polyether is 1850.

The HLB value of the first block polyether is 10.

The first block polyether can be obtained by commercial purchase, and the manufacturer is Hainan cloud chemical Co., Ltd, and the mark is L43.

The second block polyether has a viscosity of 285CPS at 25 ℃.

The second block polyether has an average molecular mass of 2000.

The second block polyether can be obtained by commercial products, and is manufactured by Hainan cloud chemical Co., Ltd, and the mark is L61.

The alkylphenol polyoxyethylene ether is a combination of SOPE-10 and SOPE-20, wherein the mass ratio of SOPE-10 to SOPE-20 is 1: 3.

the dispersing agent is APG0814 and APG1214, wherein the mass ratio of APG0814 to APG1214 is 1: (0.8-1.2).

The antirust agent is coconut oil acid diethanol amide boric acid ester.

The preparation method of the functional metal cleaning agent comprises the following steps: and mixing the first block polyether, the second block polyether, alkylphenol polyoxyethylene, a dispersing agent, an antirust agent and water, and uniformly stirring to obtain the antirust agent.

Example 2

Embodiment 2 provides a functional metal cleaner, which comprises the following raw materials: 5 parts of first block polyether, 10 parts of second block polyether, 8 parts of alkylphenol polyoxyethylene, 5 parts of dispersing agent, 3 parts of antirust agent and 40 parts of water.

The molecular weight of the first block polyether is 1850.

The HLB value of the first block polyether is 10.

The second block polyether has a viscosity of 285CPS at 25 ℃.

The second block polyether has an average molecular mass of 2000.

The antirust agent is coconut oil acid diethanol amide boric acid ester.

Example 3

Embodiment 3 provides a functional metal cleaner, which comprises the following preparation raw materials: 10 parts of first block polyether, 20 parts of second block polyether, 15 parts of alkylphenol polyoxyethylene, 10 parts of dispersing agent, 8 parts of antirust agent and 60 parts of water.

The molecular weight of the first block polyether is 1850.

The HLB value of the first block polyether is 10.

The second block polyether has a viscosity of 285CPS at 25 ℃.

The second block polyether has an average molecular mass of 2000.

The antirust agent is coconut oil acid diethanol amide boric acid ester.

Example 4

Example 4 is similar to example 1, except that the starting materials for the preparation of the functional metal cleaner do not comprise the first block polyether.

Example 5

Example 5 is similar to example 1, except that the starting materials for the preparation of the functional metal cleaner do not comprise a second block polyether.

Example 6

Example 6 is similar to example 1 except that the alkylphenol ethoxylate is SOPE-10.

Example 7

Example 7 is similar to example 1 except that the alkylphenol ethoxylate is SOPE-20.

Example 8

Example 8 is similar to example 1 except that the rust inhibitor is benzotriazole.

Evaluation of Performance

1. Measurement of foaming Property: the functional metal cleaner prepared in examples 1 to 8 was dissolved in 1L of water, 50mL of the solution was added to a 100mL beaker and stirred at 600rpm for 5min, and the foam height was measured, with the test data as shown in Table 1 below.

2. And (3) testing the resistance to heat and humidity: cleaning the stainless steel material by the functional metal cleaning agent prepared in the embodiment 1-8, immersing the stainless steel material in a container filled with deionized water, wherein the immersion height is not less than 30mm, electrifying, boiling the water, and then continuously boiling for 12 hours; after the power was turned off, the sample was cooled in water for at least 1 hour; after exposure to air for 2.5h, the surface was wiped vigorously with a dry cloth, the surface of the sample was inspected for traces of corrosion, and the results were recorded, with the test data as in table 1 below. The degree of corrosion is classified into four grades: a grade has no any corrosion trace; b level has corrosion trace and can be removed by wiping; c-level corrosion, which cannot be removed by wiping; grade d is severely corroded and cannot be removed by wiping.

Table 1 results of performance testing

The foregoing examples are merely illustrative and serve to explain some of the features of the method of the present invention. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. Also, where numerical ranges are used in the claims, subranges therein are included, and variations in these ranges are also to be construed as possible being covered by the appended claims.

Claims

1. A functional metal cleaning agent is characterized by comprising the following preparation raw materials in parts by weight: 5-10 parts of first block polyether, 10-20 parts of second block polyether, 8-15 parts of alkylphenol polyoxyethylene, 5-10 parts of dispersing agent, 3-8 parts of antirust agent and 40-60 parts of water.

2. The functional metal cleaner according to claim 1, wherein the molecular weight of the first block polyether is 1700 to 2000.

3. The functional metal cleaner according to claim 1, wherein the HLB value of the first block polyether is 8 to 12.

4. The functional metal cleaner according to claim 1, wherein the viscosity of the second block polyether is 250 to 300 at 25 ℃.

5. The functional metal cleaner according to claim 1, wherein the molecular weight of the second block polyether is 1900-2200.

6. The functional metal cleaner according to claim 1, wherein the alkylphenol ethoxylate has a cloud point of 40 to 100 in a 1% aqueous solution.

7. The functional metal cleaner as recited in claim 6, wherein the alkylphenol ethoxylates are selected from one or more of SOPE-10, SOPE-15 and SOPE-20.

8. The functional metal cleaner as claimed in claim 7, wherein the alkylphenol ethoxylate is a combination of SOPE-10 and SOPE-20, wherein the mass ratio of SOPE-10 to SOPE-20 is 1: (1-5).

9. The functional metal cleaner according to claim 1, wherein the dispersant is one or more selected from alkyl glycoside, polysiloxane-polyether copolymer, and stearate.

10. The method for preparing a functional metal cleaner according to any one of claims 1 to 9, wherein the method at least comprises the following steps: and mixing the first block polyether, the second block polyether, alkylphenol polyoxyethylene, a dispersing agent, an antirust agent and water, and uniformly stirring to obtain the antirust agent.