CN114163931A - Aluminum alloy liquid fine polishing wax and preparation method thereof - Google Patents

Aluminum alloy liquid fine polishing wax and preparation method thereof Download PDF

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CN114163931A
CN114163931A CN202111503575.1A CN202111503575A CN114163931A CN 114163931 A CN114163931 A CN 114163931A CN 202111503575 A CN202111503575 A CN 202111503575A CN 114163931 A CN114163931 A CN 114163931A
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aluminum alloy
alloy liquid
stirring
polishing wax
wax
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唐传梅
易利金
孙天翔
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SHENZHEN PARDANG TECHNOLOGY CO LTD
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SHENZHEN PARDANG TECHNOLOGY CO LTD
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    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09GPOLISHING COMPOSITIONS; SKI WAXES
    • C09G1/00Polishing compositions
    • C09G1/02Polishing compositions containing abrasives or grinding agents
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    • C10M2205/18Natural waxes, e.g. ceresin, ozocerite, bees wax, carnauba; Degras
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  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The invention relates to the technical field of liquid polishing wax, in particular to aluminum alloy liquid fine polishing wax and a preparation method thereof, wherein the aluminum alloy liquid fine polishing wax comprises the following components: mineral oil, fatty acid, grease, emulsifier, surfactant, alkaline brightener and abrasive. The aluminum alloy liquid precision polishing wax has high polishing efficiency and good surface effect. The preparation method of the aluminum alloy liquid fine polishing wax comprises the following steps: under the stirring condition, stirring water, an alkaline brightener, a surfactant, an emulsifier and an abrasive until all the components are dissolved to obtain a uniform mixed solution; and when the temperature of the mixed solution reaches over 75 ℃, adding mineral oil, grease and fatty acid, stirring to obtain an emulsion, continuously stirring for emulsification, and stopping stirring and heating to obtain the aluminum alloy liquid fine polishing wax. The preparation method of the aluminum alloy liquid fine polishing wax has the advantages of less investment of process equipment and simple and convenient process operation, and can produce the aluminum alloy liquid fine polishing wax with high quality and high stability.

Description

Aluminum alloy liquid fine polishing wax and preparation method thereof
Technical Field
The invention relates to the technical field of liquid polishing wax, in particular to aluminum alloy liquid fine polishing wax and a preparation method thereof.
Background
The aluminum alloy material has excellent performance, and is widely applied to the fields of national defense, aerospace, mechanical manufacturing, transportation, electronics and the like. The development of industries such as mobile phone casings, notebook computer casings, electronic equipment, automobiles, precise parts and the like has more and more strict requirements on the surface processing of aluminum alloy, so that higher requirements on the performances of various aspects of the aluminum alloy polishing solution are provided. At present, chemical polishing, mechanochemical polishing and mechanical polishing are generally adopted for polishing the aluminum alloy, alkaline and acidic polishing solution is usually adopted in the chemical polishing, the alkaline polishing solution has serious corrosion to the aluminum alloy, the process is difficult to control, a relatively flat surface is difficult to obtain, and yellow smoke is generated when the acidic polishing solution polishes the aluminum alloy, so that the environment is polluted; in the mechanical chemical polishing, alkaline polishing solution of silicon dioxide is usually used, and although a relatively flat and bright surface can be obtained, the polishing efficiency is low. Therefore, polishing wax for mechanical polishing having a certain polishing efficiency and surface quality is widely used in the current 3C field.
At present, some aluminum alloy polishing waxes are sold in the market, although the imported polishing waxes have excellent performance, the prices of the imported polishing waxes are high, and most of the domestic aluminum alloy polishing waxes have some problems, such as: the polishing wax has poor acid-base control, pockmarks exist on the surface of the aluminum alloy, and in addition, due to the fact that improper grinding materials are applied to the polishing wax, scratches are generated on the surface of the aluminum alloy during polishing, and the surface effect is poor.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide the aluminum alloy liquid fine polishing wax which is high in polishing efficiency and good in surface effect.
The invention also aims to provide a preparation method of the aluminum alloy liquid fine polishing wax, which has the advantages of less investment of process equipment and simple and convenient process operation, and can produce the aluminum alloy liquid fine polishing wax with high quality and high stability.
The purpose of the invention is realized by the following technical scheme: an aluminum alloy liquid fine polishing wax comprises the following components in percentage by mass:
Figure BDA0003402574930000021
the composite oil phase system formed by mineral oil, fatty acid and grease can effectively form an oil film on the surface of the polished aluminum alloy, isolate the contact between air and the surface of the aluminum alloy to prevent the surface of the aluminum alloy from being corroded, and simultaneously play a good lubricating role in the polishing process to prevent the surface of the aluminum alloy from being scratched; according to the invention, the emulsifier and the surfactant are adopted to facilitate dispersion and emulsification of oil phase components of the polishing wax, and the prepared liquid polishing wax has long-term use stability and storage stability, so that the stability in the polishing process is improved, and the overall yield is improved; the invention adopts the alkaline brightener to carry out saponification reaction with organic acid and grease at the initial stage of emulsification, the generated saponified substance is beneficial to emulsification of oil phase components, and simultaneously plays a role in brightening the surface of the aluminum alloy in the polishing process; the aluminum alloy liquid precision polishing wax has the advantages of high polishing efficiency, good surface effect, lower manufacturing cost and wide market prospect.
Further, the mineral oil is at least one of kerosene, liquid paraffin, white oil or vaseline.
Further, the fatty acid is at least one of palmitic acid, stearic acid or oleic acid.
Further, the grease is at least one of tallow, lanolin or palm oil.
Further, the emulsifier is at least one of glyceryl monostearate, sorbitan monostearate or sorbitan monooleate.
Further, the surfactant is at least one of fatty alcohol-polyoxyethylene ether, triethanolamine oleate, polyoxyethylene sorbitan monostearate or octylphenol-polyoxyethylene ether.
Further, the alkaline brightening agent is at least one of triethanolamine, polyethyleneimine or diethanolamine.
Further, the grinding material is calcined alumina, and the granularity of the alumina is submicron grade, namely the primary crystal size of the alumina is 100 nm-1000 nm. Furthermore, the grinding material is alumina calcined at medium and low temperature, and the calcination temperature is 1000-1200 ℃.
The surface of the aluminum oxide calcined at the medium and low temperature adopted by the invention is smooth and round, and is softer than the aluminum oxide calcined at the higher temperature, and the granularity of the aluminum oxide is controlled at the submicron level, so that the scratch on the surface of the aluminum alloy when the aluminum alloy liquid fine polishing wax is used for polishing the surface of the aluminum alloy can be avoided, the polished surface of the aluminum alloy is smoother, and the brightness is higher.
Further, the alumina is modified alumina, and the modified alumina is prepared by the following method:
(1) uniformly mixing the dried submicron alumina and xylene according to a weight ratio of 3: 8-3: 10 to obtain a mixed solution A;
(2) stirring the mixed solution A at the temperature of 92 ℃ for 5min, adding a silane coupling agent, heating to 118 ℃, and continuously stirring for reaction for 7.5h to obtain a mixed solution B;
(3) and filtering the mixed solution B while the mixed solution is hot after the reaction is finished to obtain a pre-product, washing the pre-product by using absolute ethyl alcohol, and drying to obtain the modified aluminum oxide.
Specifically, the silane coupling agent is a silane coupling agent KH-550.
The preparation method of the modified alumina has the advantages of simple raw materials, simple preparation operation steps and safe and controllable reaction process, compared with unmodified alumina, the particle size of the modified alumina prepared by the method is increased, the surface energy of the modified alumina is reduced, the modified alumina can be uniformly dispersed in the aluminum alloy liquid polishing wax, and the polishing quality of the aluminum alloy liquid polishing wax on the aluminum alloy can be well improved.
The other purpose of the invention is realized by the following technical scheme: a preparation method of aluminum alloy liquid fine polishing wax comprises the following steps:
(1) under the condition of stirring, sequentially adding water, an alkaline brightening agent, a surfactant, an emulsifier and an abrasive into a constant-temperature reaction container at the temperature of 75-85 ℃, and stirring until all the materials are dissolved to obtain a uniform mixed solution;
(2) and when the temperature of the mixed solution reaches over 75 ℃, sequentially adding mineral oil, grease and fatty acid, stirring to obtain an emulsion, continuously stirring for 20-30 minutes at the temperature of 75-85 ℃ for continuous emulsification to obtain the emulsion, and stopping stirring and heating to obtain the aluminum alloy liquid fine polishing wax.
According to the preparation method of the aluminum alloy liquid fine polishing wax, firstly, an abrasive material, an alkaline brightening agent with good water solubility, a surfactant and an emulsifier are added into water, when the temperature of a water phase reaches above the melting point of an oil phase substance, mineral oil, grease and fatty acid are added, and the mixture is continuously stirred and emulsified; the preparation method of the aluminum alloy liquid fine polishing wax has the advantages of less process equipment investment, simple and convenient process operation, wide popularization and application and wide prospect.
The invention has the beneficial effects that: the composite oil phase system formed by mineral oil, fatty acid and grease can effectively form an oil film on the surface of the polished aluminum alloy, isolate the contact between air and the surface of the aluminum alloy to prevent the surface of the aluminum alloy from being corroded, and simultaneously play a good lubricating role in the polishing process to prevent the surface of the aluminum alloy from being scratched; according to the invention, the emulsifier and the surfactant are adopted to facilitate dispersion and emulsification of oil phase components of the polishing wax, and the prepared liquid polishing wax has long-term use stability and storage stability, so that the stability in the polishing process is improved, and the overall yield is improved; the invention adopts the alkaline brightener to carry out saponification reaction with organic acid and grease at the initial stage of emulsification, the generated saponified substance is beneficial to emulsification of oil phase components, and simultaneously plays a role in brightening the surface of the aluminum alloy in the polishing process; the aluminum alloy liquid precision polishing wax has the advantages of high polishing efficiency, good surface effect, lower manufacturing cost and wide market prospect.
Detailed Description
The present invention will be further described below to facilitate understanding of those skilled in the art, and the embodiments are not to be construed as limiting the present invention.
Example 1
An aluminum alloy liquid fine polishing wax comprises the following components in percentage by mass:
Figure BDA0003402574930000051
further, the mineral oil is white oil.
Further, the fatty acid is stearic acid with the mass percent of 6% and oleic acid with the mass percent of 2%.
Further, the grease is lanolin.
Further, the emulsifier is glyceryl monostearate.
Further, the surfactant is fatty alcohol-polyoxyethylene ether with the mass percent of 1.5% and triethanolamine oleate with the mass percent of 1.5%.
Further, the alkaline brightening agent is triethanolamine.
Further, the abrasive is calcined alumina, and the particle size of the alumina is submicron, namely the primary crystal size of the alumina is 100 nm. Furthermore, the grinding material is alumina calcined at medium and low temperature, and the calcination temperature is 1000 ℃.
The preparation method of the aluminum alloy liquid fine polishing wax comprises the following steps:
(1) under the condition of stirring, sequentially adding water, an alkaline brightening agent, a surfactant, an emulsifier and an abrasive into a constant-temperature reaction container at the temperature of 77 ℃, and stirring until all the materials are dissolved to obtain a uniform mixed solution;
(2) and when the temperature of the mixed solution reaches over 75 ℃, sequentially adding mineral oil, grease and fatty acid, stirring to obtain an emulsion, continuously stirring for 25 minutes at the temperature of 77 ℃ for continuous emulsification to obtain the emulsion, and stopping stirring and heating to obtain the aluminum alloy liquid fine polishing wax.
Example 2
An aluminum alloy liquid fine polishing wax comprises the following components in percentage by mass:
Figure BDA0003402574930000061
further, the mineral oil is vaseline.
Further, the fatty acid is stearic acid.
Further, the grease is beef tallow.
Further, the emulsifier is glyceryl monostearate.
Further, the surfactant is octyl phenol polyoxyethylene ether.
Further, the alkaline brightener is polyethyleneimine.
Further, the abrasive is calcined alumina, and the particle size of the alumina is submicron, namely the primary crystal size of the alumina is 500 nm. Furthermore, the grinding material is alumina calcined at medium and low temperature, and the calcination temperature is 1050 ℃.
The preparation method of the aluminum alloy liquid fine polishing wax comprises the following steps:
(1) under the condition of stirring, sequentially adding water, an alkaline brightening agent, a surfactant, an emulsifier and an abrasive into a constant-temperature reaction container at the temperature of 79 ℃, and stirring until all the materials are dissolved to obtain a uniform mixed solution;
(2) and when the temperature of the mixed solution reaches over 75 ℃, sequentially adding mineral oil, grease and fatty acid, stirring to obtain an emulsion, continuously stirring for 23 minutes at the temperature of 79 ℃ for continuous emulsification to obtain the emulsion, and stopping stirring and heating to obtain the aluminum alloy liquid polishing wax.
Example 3
An aluminum alloy liquid fine polishing wax comprises the following components in percentage by mass:
Figure BDA0003402574930000071
further, the mineral oil is liquid paraffin.
Further, the fatty acid is palmitic acid and stearic acid.
Further, the grease is lanolin.
Further, the emulsifier is a sorbitan monostearate species.
Further, the surfactant is fatty alcohol-polyoxyethylene ether.
Further, the alkaline brightening agent is triethanolamine.
Further, the abrasive is calcined alumina, and the particle size of the alumina is submicron, namely the primary crystal size of the alumina is 700 nm. Furthermore, the grinding material is alumina calcined at medium and low temperature, and the calcination temperature is 1100 ℃.
The preparation method of the aluminum alloy liquid fine polishing wax comprises the following steps:
(1) under the condition of stirring, sequentially adding water, an alkaline brightening agent, a surfactant, an emulsifier and an abrasive into a constant-temperature reaction container at the temperature of 81 ℃, and stirring until all the materials are dissolved to obtain a uniform mixed solution;
(2) and when the temperature of the mixed solution reaches over 75 ℃, sequentially adding mineral oil, grease and fatty acid, stirring to obtain an emulsion, continuously stirring for 20 minutes at the temperature of 81 ℃ for continuous emulsification to obtain the emulsion, and stopping stirring and heating to obtain the aluminum alloy liquid polishing wax.
Example 4
An aluminum alloy liquid fine polishing wax comprises the following components in percentage by mass:
Figure BDA0003402574930000081
further, the mineral oil is kerosene.
Further, the fatty acid is in oleic acid.
Further, the grease is lanolin.
Further, the emulsifier is sorbitan monooleate.
Further, the surfactant is triethanolamine oleate.
Further, the alkaline brightener is diethanolamine.
Further, the abrasive is calcined alumina, and the particle size of the alumina is submicron, namely the primary crystal size of the alumina is 800 nm. Furthermore, the grinding material is alumina calcined at medium and low temperature, and the calcination temperature is 1150 ℃.
The preparation method of the aluminum alloy liquid fine polishing wax comprises the following steps:
(1) under the condition of stirring, sequentially adding water, an alkaline brightening agent, a surfactant, an emulsifier and an abrasive into a constant-temperature reaction container at the temperature of 83 ℃, and stirring until all the materials are dissolved to obtain a uniform mixed solution;
(2) and when the temperature of the mixed solution reaches over 75 ℃, sequentially adding mineral oil, grease and fatty acid, stirring to obtain an emulsion, continuously stirring for 27 minutes at 83 ℃ for continuous emulsification to obtain the emulsion, and stopping stirring and heating to obtain the aluminum alloy liquid polishing wax.
Example 5
The purpose of the invention is realized by the following technical scheme: an aluminum alloy liquid fine polishing wax comprises the following components in percentage by mass:
Figure BDA0003402574930000091
further, the mineral oil is liquid paraffin.
Further, the fatty acid is oleic acid.
Further, the oil and fat is lanolin and palm oil.
Further, the emulsifier is sorbitan monooleate.
Further, the surfactant is fatty alcohol-polyoxyethylene ether.
Further, the alkaline brightener is polyethyleneimine.
Further, the abrasive is calcined alumina, and the particle size of the alumina is submicron, namely the primary crystal size of the alumina is 1000 nm. Furthermore, the grinding material is alumina calcined at medium and low temperature, and the calcination temperature is 1200 ℃.
The preparation method of the aluminum alloy liquid fine polishing wax comprises the following steps:
(1) under the condition of stirring, sequentially adding water, an alkaline brightening agent, a surfactant, an emulsifier and an abrasive into a constant-temperature reaction container at the temperature of 85 ℃, and stirring until all the materials are dissolved to obtain a uniform mixed solution;
(2) and when the temperature of the mixed solution reaches over 75 ℃, sequentially adding mineral oil, grease and fatty acid, stirring to obtain an emulsion, continuously stirring for 29 minutes at 85 ℃ for continuous emulsification to obtain the emulsion, and stopping stirring and heating to obtain the aluminum alloy liquid polishing wax.
Example 6
An aluminum alloy liquid fine polishing wax comprises the following components in percentage by mass:
Figure BDA0003402574930000101
further, the mineral oil is liquid paraffin.
Further, the fatty acid is palmitic acid and stearic acid.
Further, the grease is lanolin.
Further, the emulsifier is a sorbitan monostearate species.
Further, the surfactant is fatty alcohol-polyoxyethylene ether.
Further, the alkaline brightening agent is triethanolamine.
Further, the abrasive is calcined alumina, and the particle size of the alumina is submicron, namely the primary crystal size of the alumina is 700 nm. Furthermore, the grinding material is alumina calcined at medium and low temperature, and the calcination temperature is 1100 ℃.
Further, the alumina is modified alumina, and the modified alumina is prepared by the following method:
(1) uniformly mixing the dried submicron alumina and xylene according to the weight ratio of 3:8 to obtain a mixed solution A;
(2) stirring the mixed solution A at the temperature of 92 ℃ for 5min, adding a silane coupling agent KH-550, heating to 118 ℃, and continuously stirring for reaction for 7.5h to obtain a mixed solution B;
(3) and filtering the mixed solution B while the mixed solution is hot after the reaction is finished to obtain a pre-product, washing the pre-product by using absolute ethyl alcohol, and drying to obtain the modified aluminum oxide.
The preparation method of the aluminum alloy liquid fine polishing wax comprises the following steps:
(1) under the condition of stirring, sequentially adding water, an alkaline brightening agent, a surfactant, an emulsifier and an abrasive into a constant-temperature reaction container at the temperature of 81 ℃, and stirring until all the materials are dissolved to obtain a uniform mixed solution;
(2) and when the temperature of the mixed solution reaches over 75 ℃, sequentially adding mineral oil, grease and fatty acid, stirring to obtain an emulsion, continuously stirring for 20 minutes at the temperature of 81 ℃ for continuous emulsification to obtain the emulsion, and stopping stirring and heating to obtain the aluminum alloy liquid polishing wax.
Example 7
An aluminum alloy liquid fine polishing wax comprises the following components in percentage by mass:
Figure BDA0003402574930000111
further, the mineral oil is liquid paraffin.
Further, the fatty acid is palmitic acid and stearic acid.
Further, the grease is lanolin.
Further, the emulsifier is a sorbitan monostearate species.
Further, the surfactant is fatty alcohol-polyoxyethylene ether.
Further, the alkaline brightening agent is triethanolamine.
Further, the abrasive is calcined alumina, and the particle size of the alumina is submicron, namely the primary crystal size of the alumina is 700 nm. Furthermore, the grinding material is alumina calcined at medium and low temperature, and the calcination temperature is 1100 ℃.
Further, the alumina is modified alumina, and the modified alumina is prepared by the following method:
(1) uniformly mixing the dried submicron alumina and xylene according to the weight ratio of 3:10 to obtain a mixed solution A;
(2) stirring the mixed solution A at the temperature of 92 ℃ for 5min, adding a silane coupling agent KH-550, heating to 118 ℃, and continuously stirring for reaction for 7.5h to obtain a mixed solution B;
(3) and filtering the mixed solution B while the mixed solution is hot after the reaction is finished to obtain a pre-product, washing the pre-product by using absolute ethyl alcohol, and drying to obtain the modified aluminum oxide.
The preparation method of the aluminum alloy liquid fine polishing wax comprises the following steps:
(1) under the condition of stirring, sequentially adding water, an alkaline brightening agent, a surfactant, an emulsifier and an abrasive into a constant-temperature reaction container at the temperature of 81 ℃, and stirring until all the materials are dissolved to obtain a uniform mixed solution;
(2) and when the temperature of the mixed solution reaches over 75 ℃, sequentially adding mineral oil, grease and fatty acid, stirring to obtain an emulsion, continuously stirring for 20 minutes at the temperature of 81 ℃ for continuous emulsification to obtain the emulsion, and stopping stirring and heating to obtain the aluminum alloy liquid polishing wax.
The aluminum alloy liquid fine polishing wax of the embodiments 1 to 7 of the invention is used for polishing the aluminum alloy respectively, and the experimental results are as follows:
Figure BDA0003402574930000121
Figure BDA0003402574930000131
the test standard of the surface roughness of the aluminum alloy is GB/T1031-2009; wherein, the surface glossiness of the aluminum alloy is tested by a Germany BYK4563 type glossiness instrument (the incident angle is 20 degrees); wherein, whether the surface of the aluminum alloy after polishing generates scratches is detected by adopting a visual inspection mode.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims (9)

1. The aluminum alloy liquid fine polishing wax is characterized in that: the composite material comprises the following components in percentage by mass:
Figure FDA0003402574920000011
2. the aluminum alloy liquid finishing wax as claimed in claim 1, wherein: the mineral oil is at least one of kerosene, liquid paraffin, white oil or vaseline.
3. The aluminum alloy liquid finishing wax as claimed in claim 1, wherein: the fatty acid is at least one of palmitic acid, stearic acid or oleic acid.
4. The aluminum alloy liquid finishing wax as claimed in claim 1, wherein: the oil is at least one of tallow, lanolin and palm oil.
5. The aluminum alloy liquid finishing wax as claimed in claim 1, wherein: the emulsifier is at least one of glyceryl monostearate, sorbitan monostearate or sorbitan monooleate.
6. The aluminum alloy liquid finishing wax as claimed in claim 1, wherein: the surfactant is at least one of fatty alcohol-polyoxyethylene ether, triethanolamine oleate, polyoxyethylene sorbitan monostearate or octyl phenol-polyoxyethylene ether.
7. The aluminum alloy liquid finishing wax as claimed in claim 1, wherein: the alkaline brightener is at least one of triethanolamine, polyethyleneimine or diethanolamine.
8. The aluminum alloy liquid finishing wax as claimed in claim 1, wherein: the abrasive is calcined alumina, and the granularity of the alumina is submicron.
9. The method for preparing an aluminum alloy liquid finishing wax as defined in any one of claims 1 to 8, comprising the steps of:
(1) under the condition of stirring, adding water, an alkaline brightening agent, a surfactant, an emulsifier and an abrasive into a reaction container at the temperature of 75-85 ℃, and stirring until all the materials are dissolved to obtain a mixed solution;
(2) and when the temperature of the mixed solution reaches over 75 ℃, adding mineral oil, grease and fatty acid, stirring, continuously stirring for 20-30 minutes at the temperature of 75-85 ℃ for emulsification to obtain an emulsion, and stopping stirring and heating to obtain the aluminum alloy liquid polishing wax.
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