CN115651608B - Preparation method and application of nano aluminum oxide composite abrasive particles - Google Patents
Preparation method and application of nano aluminum oxide composite abrasive particles Download PDFInfo
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- CN115651608B CN115651608B CN202211348241.6A CN202211348241A CN115651608B CN 115651608 B CN115651608 B CN 115651608B CN 202211348241 A CN202211348241 A CN 202211348241A CN 115651608 B CN115651608 B CN 115651608B
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 239000002245 particle Substances 0.000 title claims abstract description 49
- 239000002131 composite material Substances 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000005498 polishing Methods 0.000 claims abstract description 64
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 50
- -1 polyoxyethylene phosphate Polymers 0.000 claims abstract description 48
- 239000006061 abrasive grain Substances 0.000 claims abstract description 39
- 241000208818 Helianthus Species 0.000 claims abstract description 34
- 235000003222 Helianthus annuus Nutrition 0.000 claims abstract description 34
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 16
- 239000010935 stainless steel Substances 0.000 claims abstract description 16
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 10
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000007797 corrosion Effects 0.000 claims abstract description 5
- 238000005260 corrosion Methods 0.000 claims abstract description 5
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 5
- 239000006185 dispersion Substances 0.000 claims abstract description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 32
- 238000003756 stirring Methods 0.000 claims description 24
- 239000000843 powder Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000002244 precipitate Substances 0.000 claims description 11
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 9
- 239000000047 product Substances 0.000 claims description 8
- 238000010992 reflux Methods 0.000 claims description 8
- 238000001291 vacuum drying Methods 0.000 claims description 8
- 239000008367 deionised water Substances 0.000 claims description 7
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 238000006116 polymerization reaction Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000003517 fume Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000003760 magnetic stirring Methods 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 11
- 230000003746 surface roughness Effects 0.000 abstract description 5
- 238000005886 esterification reaction Methods 0.000 abstract description 3
- 230000004048 modification Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 abstract description 2
- 238000007517 polishing process Methods 0.000 abstract description 2
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 10
- PLLBRTOLHQQAQQ-UHFFFAOYSA-N 8-methylnonan-1-ol Chemical compound CC(C)CCCCCCCO PLLBRTOLHQQAQQ-UHFFFAOYSA-N 0.000 description 8
- 239000004440 Isodecyl alcohol Substances 0.000 description 8
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 239000010963 304 stainless steel Substances 0.000 description 5
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- 238000000227 grinding Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000001132 ultrasonic dispersion Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 2
- 230000033444 hydroxylation Effects 0.000 description 2
- 238000005805 hydroxylation reaction Methods 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UYXQLQUXXCIFQM-UHFFFAOYSA-N 2-hydroxy-1,3,2$l^{5}-dioxaphospholane 2-oxide Chemical compound OP1(=O)OCCO1 UYXQLQUXXCIFQM-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- DTPCFIHYWYONMD-UHFFFAOYSA-N decaethylene glycol Polymers OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO DTPCFIHYWYONMD-UHFFFAOYSA-N 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000000247 postprecipitation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a preparation method of nanometer alumina composite abrasive particles and application thereof in precision polishing. The preparation method of the invention comprises the steps of firstly adopting epichlorohydrin to carry out surface modification on nano alumina particles, and introducing hydroxyl after hydrolysis; and then the isomeric sunflower alcohol polyoxyethylene phosphate is adopted to carry out esterification reaction with hydroxyl on the surface of alumina, and the nano alumina composite abrasive particles modified by the isomeric sunflower alcohol polyoxyethylene phosphate are obtained after post-treatment. Compared with the alumina abrasive grain, the polishing solution prepared from the composite abrasive grain has good dispersion stability, is used for precisely polishing the surface of a stainless steel element, can obviously reduce the surface roughness, and effectively reduces the polishing defects of mechanical damage, corrosion points (Pit) and the like of the alumina particles in the polishing process of the stainless steel surface.
Description
Technical Field
The invention relates to nanometer alumina composite abrasive particles for stainless steel polishing and a preparation method thereof, in particular to alpha-phase nanometer alumina (alpha-Al) modified by isomeric sunflower alcohol polyoxyethylene phosphate 2 O 3 ) Composite abrasive particles and a preparation method thereof, which belong to the technical field of surface grinding and polishing processing.
Background
With the increasing living standard, people have increasingly greater demands for electronic products and have increasingly higher demands for performance and aesthetics. Stainless steel materials are widely used as internal components, appearance components or decorative materials of consumer electronics, and decorative parts such as trademark LOGO, nameplates and the like are required to have smooth and beautiful stainless steel surfaces. The stainless steel surface is smooth and flat, has no flaws, is not only required to beautify products and obtain good hand feeling, but also is an important influencing factor for ensuring the quality of the products and prolonging the service life of workpieces.
Surface polishing is one of the key processes in the manufacture of stainless steel components. However, the metal has high chemical activity and low hardness, and the processing problem is quite large. Compared with non-metal materials, the metal polishing defect level is high, and polishing defects such as polishing scratches, pitting and the like are easy to generate. The low yield caused by high defect level of the surface of the stainless steel processing at present is a main difficult problem in the processing of the stainless steel material.
Polishing solutions have been the main polishing carrier in polishing processes and have been the focus of research by all researchers. The polishing liquid is mainly composed of abrasive grains and chemical agents (surfactants, oxidants, etc.). The abrasive particles are basic and key components of the polishing solution, and the physical and chemical indexes such as the type, structure, hardness, granularity and morphology of the abrasive particles obviously influence the polishing performance of the polishing solution.
The alpha-phase nano alumina is an inorganic abrasive particle which is frequently adopted in polishing processing, has high polishing efficiency, but because of high hardness, particles are agglomerated to generate large particles, so that serious polishing damage is often caused, the generated surface defects are more, the surface precision requirements of stainless steel and the like cannot be met, and the industrial mass production requirement of the stainless steel polishing industry is difficult to meet.
Disclosure of Invention
The invention aims to solve the problem of a plurality of polishing defects of the existing alpha-phase nano alumina abrasive particles, and provides the alumina composite abrasive particles modified by the isomeric sunflower alcohol polyoxyethylene phosphate, which can effectively reduce particle aggregation, reduce polishing damage and pitting defects and improve the surface precision after polishing.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
an isomeric sunflower alcohol polyoxyethylene phosphate modified nano alumina composite abrasive particle comprises 100-1000 nm alpha-Al 2 O 3 Abrasive particles and polyoxy using isomeric sunflower alcoholsThe ethylene monophosphate is used for carrying out surface modification on the alumina abrasive grain.
The preparation method of the isomeric sunflower alcohol polyoxyethylene phosphate modified nano alumina composite abrasive particles comprises the following steps:
s01: in a three-neck flask with a reflux and drying device, a certain amount of alumina powder is dispersed into anhydrous toluene under magnetic stirring, a certain amount of epichlorohydrin is added, and the reaction is carried out for 5 hours at normal temperature under continuous stirring. And slowly adding a certain amount of deionized water into a fume hood, carrying out hydrolysis reaction for 1 hour at normal temperature under stirring, filtering, washing the precipitate with ethanol for 3 times, and then carrying out vacuum drying at about 40 ℃ to obtain alumina abrasive grain powder with hydroxyl functional groups.
S02: adding toluene solvent into a three-neck flask with a reflux device and an oil-water separator, adding a certain amount of alumina abrasive grain powder with hydroxyl functional groups prepared in the step S01 under stirring, stirring uniformly, adding a certain amount of isodecyl alcohol polyoxyethylene monophosphate, heating to about 100 ℃, and stirring for reaction for 3 hours. And cooling the product to room temperature, centrifuging, washing the precipitate with ethanol for 3 times, filtering, and vacuum drying the precipitate at 40 ℃ to obtain the isomeric sunflower alcohol polyoxyethylene phosphate modified alumina composite abrasive particle powder.
Further, in the step S01: the mass ratio of the aluminum oxide, the toluene, the epichlorohydrin and the water is 5:100:3:10.
further, in the step S01: the alumina abrasive grains are alpha phase alumina (alpha-Al) 2 O 3 ) The grain diameter is 200 nm-1000 nm.
Further, in the step S02: the mass ratio of toluene solvent, hydroxylated alumina abrasive grain powder, isodecyl alcohol polyoxyethylene monophosphate and the like is 100:5:2.
further, in the step S02: degree of polymerization (EO) of polyoxyethylene among the isomeric sunflower alcohol polyoxyethylene monophosphates employed n N=0 to 10.
The invention has the following beneficial effects: according to the invention, the alumina composite abrasive particles modified by the isomeric sunflower alcohol polyoxyethylene phosphate are utilized, and because the isomeric sunflower alcohol polyoxyethylene phosphate molecules have good water dispersibility, lubricity and metal corrosion inhibition, the agglomeration phenomenon of alumina particles can be effectively reduced, and the generation of large particles is prevented; the polishing agent is used for superfinishing the surface of metal materials such as stainless steel, and can effectively reduce the surface roughness after polishing, reduce the surface damage after polishing processing, and reduce microscopic defects such as corrosion points (Pit).
Detailed description of the preferred embodiments
The following description of the present invention will be made clearly and fully, and it is apparent that the embodiments described are only some, but not all, of the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides an alumina composite abrasive particle modified by isodecyl alcohol polyoxyethylene phosphate, which is an alumina abrasive particle with an inner core of 200-1000 nm, and the surface of the alumina abrasive particle is modified by isodecyl alcohol polyoxyethylene phosphate.
The invention provides an isomeric sunflower alcohol polyoxyethylene phosphate modified alumina composite abrasive grain, which is prepared through the processes of surface hydroxylation of alumina abrasive grain, esterification reaction with isomeric sunflower alcohol polyoxyethylene monophosphate and the like, and comprises the following steps:
s01: in a three-neck flask with a reflux and drying device, a certain amount of alumina powder is dispersed into anhydrous toluene under magnetic stirring, a certain amount of epichlorohydrin is added, and the reaction is carried out for 5 hours at normal temperature under continuous stirring. And slowly adding a certain amount of deionized water into a fume hood, carrying out hydrolysis reaction for 1 hour at normal temperature under stirring, filtering, washing the precipitate with ethanol for 3 times, and then carrying out vacuum drying at about 40 ℃ to obtain alumina abrasive grain powder with hydroxyl functional groups. In the step, the mass ratio of the aluminum oxide, the toluene, the epichlorohydrin and the water is 5:100:3:10; the alumina abrasive grains are alpha phase alumina (alpha-Al) 2 O 3 ) The grain diameter is 200 nm-1000 nm.
S02: three-neck flask with reflux device and oil-water separatorAdding toluene solvent, adding a certain amount of alumina abrasive grain powder with hydroxyl functional groups prepared in the step S01 under stirring, stirring uniformly, adding a certain amount of isodecyl alcohol polyoxyethylene monophosphate, heating to about 100 ℃, and stirring for reaction for 3 hours. And cooling the product to room temperature, centrifuging, washing the precipitate with ethanol for 3 times, filtering, and vacuum drying the precipitate at 40 ℃ to obtain the isomeric sunflower alcohol polyoxyethylene phosphate modified alumina composite abrasive particle powder. In the step, the mass ratio of toluene solvent, hydroxylated alumina abrasive grain powder, isodecyl alcohol polyoxyethylene monophosphate and the like is 100:5:2; degree of polymerization (EO) of polyoxyethylene among the isomeric sunflower alcohol polyoxyethylene monophosphates employed n N=0 to 10.
The prepared abrasive particles are used for preparing polishing solution by the following method: and (3) adding 2 g of the isomeric sunflower alcohol polyoxyethylene phosphate modified alumina composite abrasive grain powder prepared in the step (S02) into 100 g of deionized water, performing ultrasonic dispersion for 0.5 hour, and adding 1% hydrogen peroxide under stirring to obtain the polishing solution of the isomeric sunflower alcohol polyoxyethylene phosphate modified alumina composite abrasive grain with the concentration of 2.0 wt.%.
The polishing solution of the isomeric sunflower alcohol polyoxyethylene phosphate modified alumina is used for polishing 304 stainless steel, the surface roughness after polishing can reach below 5 nanometers, and defects and damages under a spotlight are light.
The invention is further illustrated by the following specific examples and comparative examples:
example 1
The embodiment provides a preparation method of isomeric sunflower alcohol polyoxyethylene phosphate modified alumina, which is prepared through the processes of surface hydroxylation of alumina abrasive particles, esterification reaction with isomeric sunflower alcohol polyoxyethylene monophosphate and the like, and comprises the following steps:
s01: in a three-neck flask with a reflux and drying device, a certain amount of alumina powder is dispersed into anhydrous toluene under magnetic stirring, a certain amount of epichlorohydrin is added, and the reaction is carried out for 5 hours at normal temperature under continuous stirring. Slowly adding a certain amount of deionized water into the product in a fume hood, carrying out hydrolysis reaction for 1 hour at normal temperature under stirring, and carrying out suction filtrationWashing the post-precipitation with ethanol for 3 times, and vacuum drying at about 40 ℃ to obtain alumina abrasive grain powder with hydroxyl functional groups. In the step, the mass ratio of the aluminum oxide, the toluene, the epichlorohydrin and the water is 5:100:3:10; the alumina abrasive grain is alpha phase alumina (alpha-Al) with a grain size of 200 nm 2 O 3 )。
S02: adding toluene solvent into a three-neck flask with a reflux device and an oil-water separator, adding a certain amount of alumina abrasive grain powder with hydroxyl functional groups prepared in the step S01 under stirring, stirring uniformly, adding a certain amount of isodecyl alcohol polyoxyethylene monophosphate, heating to about 100 ℃, and stirring for reaction for 3 hours. And cooling the product to room temperature, centrifuging, washing the precipitate with ethanol for 3 times, filtering, and vacuum drying the precipitate at 40 ℃ to obtain the isomeric sunflower alcohol polyoxyethylene phosphate modified alumina composite abrasive particle powder. In the step, the mass ratio of toluene solvent, hydroxylated alumina abrasive grain powder, isodecyl alcohol polyoxyethylene monophosphate and the like is 100:5:2; degree of polymerization (EO) of polyoxyethylene among the isomeric sunflower alcohol polyoxyethylene monophosphates employed n N=6.
The prepared abrasive particles are used for preparing polishing solution by the following method: 2 g of the isomeric sunflower alcohol polyoxyethylene (6) phosphate modified alumina composite abrasive grain powder prepared in the step S02 is added into 100 g of deionized water, ultrasonic dispersion is carried out for 0.5 hour, and 1% hydrogen peroxide is added under stirring, thus obtaining the polishing solution of 2.0wt.% of isomeric sunflower alcohol polyoxyethylene (6) phosphate modified alumina composite abrasive grain.
Example 2
The same as in example 1, except that the particle size of the α -alumina abrasive grains used in step S01 was 500 nm.
Example 3
The procedure of example 1 was followed except that the alpha alumina abrasive grain used in step S01 had a particle size of 1000 nm.
Example 4
As in example 1, except that in step S02, the degree of polymerization (EO) of polyoxyethylene in the isomeric sunflower alcohol polyoxyethylene monophosphate was used n N=10 to obtain the isomeric sunflower alcohol polyoxyethylene (10) phosphate modified alumina composite millAnd (3) polishing liquid of particles.
Example 5
As in example 1, except that in step S02, the degree of polymerization (EO) of polyoxyethylene in the isomeric sunflower alcohol polyoxyethylene monophosphate was used n And (3) obtaining the polishing solution of the isomeric sunflower alcohol phosphate modified alumina composite abrasive grains with n=0.
Comparative example 1
The preparation method of the alpha-alumina abrasive grain polishing solution with the grain diameter of 200 nanometers comprises the following steps:
adding 2 g of 200 nm alpha-alumina abrasive grain powder into 100 g of deionized water, performing ultrasonic dispersion for 0.5 hour, adding 1% hydrogen peroxide under stirring, and stirring uniformly to obtain a polishing solution of 200 nm alpha-alumina abrasive grain with the concentration of 2.0 wt.%.
Comparative example 2
A preparation method of alpha-alumina abrasive grain polishing solution with the grain diameter of 500 nanometers comprises the same steps as in comparative example 1, except that the grain diameter of the alumina abrasive grain is 500 nanometers.
Comparative example 3
A preparation method of alpha-alumina abrasive grain polishing solution with the grain diameter of 1000 nanometers comprises the same steps as in comparative example 1, except that the grain diameter of the adopted alpha-alumina abrasive grain is 1000 nanometers.
Polishing tests were conducted on 304 stainless steel sheets under certain polishing conditions using the polishing solutions of each of examples 1 to 5 and comparative examples 1 to 3 described above. The polishing conditions were as follows:
polishing machine: automatic UNIPO-1000S pressure grinding polisher;
polishing a workpiece: 304 stainless steel LOGO,9 pieces;
polishing pad: an AF001 polishing pad;
polishing pressure: 4kg;
lower disc rotation speed: 70rpm;
polishing time: 0.5h;
after polishing, the stainless steel sheet was washed and dried, and the surface average roughness (Ra) of the work piece was measured with a 3D optical profiler (S neox 090v 2) in a range of 1000 μm×1000 μm. Surface defects and damage after polishing were observed under a spotlight.
The polishing solutions of the examples and comparative examples and their polishing effects on 304 stainless steel sheets are summarized in Table 1. As can be seen from Table 1, the dispersion stability of the pure alumina abrasive grains of different particle sizes in comparative examples 1 to 3 was poor, and the abrasive grains were used for polishing stainless steel sheets, and had many polishing scratches, many polishing pitting and large roughness after polishing; different alumina particle sizes and different polyoxyethylene degrees of polymerization (EO) in all examples n The dispersibility stability of the isomeric sunflower alcohol polyoxyethylene phosphate modified alumina composite abrasive particles is obviously improved, and the isomeric sunflower alcohol polyoxyethylene phosphate modified alumina composite abrasive particles have low surface roughness after polishing and light polishing damage.
TABLE 1 polishing effect of alumina abrasive grains of examples and comparative examples of the present invention on 304 stainless steel
In a word, compared with the conventional alpha-alumina commercial abrasive particles, the isomeric sunflower alcohol polyoxyethylene phosphate modified alumina composite abrasive particles are used for polishing stainless steel sheets, the surface roughness can reach below 5 nanometers, the microscopic defects are light, the composite abrasive particles have the multifunctional effects of mechanical grinding, lubrication, corrosion inhibition and the like, and the purpose of high-precision polishing is achieved.
Claims (6)
1. The preparation method of the nano alumina composite abrasive particles is characterized by comprising the following steps:
s01: dispersing a certain amount of alumina powder into anhydrous toluene under magnetic stirring in a three-neck flask with a reflux and drying device, adding a certain amount of epichlorohydrin, and reacting for 5 hours at normal temperature under continuous stirring; slowly adding a certain amount of deionized water into a fume hood, carrying out hydrolysis reaction for 1 hour at normal temperature under stirring, filtering, washing the precipitate with ethanol for 3 times, and vacuum drying at about 40 ℃ to obtain alumina abrasive grain powder with hydroxyl functional groups;
s02: adding toluene solvent into a three-neck flask with a reflux device and an oil-water separator, adding a certain amount of alumina abrasive grain powder with hydroxyl functional groups prepared in the step S01 under stirring, stirring uniformly, adding a certain amount of isosunflower alcohol polyoxyethylene monophosphate, heating to 100 ℃, and stirring for reacting for 3 hours; and cooling the product to room temperature, centrifuging, washing the precipitate with ethanol for 3 times, filtering, and vacuum drying the precipitate at 40 ℃ to obtain the isomeric sunflower alcohol polyoxyethylene phosphate modified alumina composite abrasive particle powder.
2. The method for producing nano-alumina composite abrasive particles according to claim 1, wherein in step S01: the mass ratio of the aluminum oxide, the toluene, the epichlorohydrin and the water is 5:100:3:10.
3. the method for producing nano-alumina composite abrasive particles according to claim 1, wherein in step S01: the alumina abrasive grains are alpha phase alumina (alpha-Al) 2 O 3 ) The grain diameter is 200 nm-1000 nm.
4. The method of making nano-alumina composite abrasive particles according to claim 1, wherein in step S02: toluene solvent, hydroxylated alumina abrasive grain powder and isomeric sunflower alcohol polyoxyethylene monophosphate with the mass ratio of 100:5:2.
5. the method of making nano-alumina composite abrasive particles according to claim 1, wherein in step S02: degree of polymerization (EO) of polyoxyethylene among the isomeric sunflower alcohol polyoxyethylene monophosphates employed n N=0 to 10.
6. The method for preparing nano alumina composite abrasive particles according to any one of claims 1 to 5, wherein the prepared alumina composite abrasive particles are used for superfinishing the surface of stainless steel metal material, and have the advantages of good dispersion stability of polishing solution, low mechanical damage to the surface after polishing and less corrosion points.
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