CN104610784A - Modified nanodiamond and polishing solution thereof as well as polished section - Google Patents
Modified nanodiamond and polishing solution thereof as well as polished section Download PDFInfo
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Abstract
The invention relates to a modified nanodiamond and a polishing solution thereof as well as a polished section. A preparation method of the modified nanodiamond comprises the following steps:1) adding diamond micropowder with the particle size of 100-200 microns into water, performing ultrasonic treatment to sufficiently disperse the diamond micropowder to form a diamond micropowder dispersoid; 2) adding an alcohol modifying solvent into the diamond micropowder dispersoid, and performing ultrasonic dispersion to form a uniformly mixed suspension system; 3) stirring the suspension system in a water bath with the temperature of 60-100 DEG C to form a slurry; 4) adding a silane coupling agent into the slurry, uniformly stirring, modifying for 20-80min, performing suction filtration, and washing to obtain the modified nanodiamond. The invention further comprises the polishing solution containing the modified nanodiamond as well as the polished section prepared by using the polishing solution. The prepared polished section is low in cost; in the using process, adhesive residue is avoided; the polishing effect is good.
Description
Technical field
The invention belongs to grinding and polishing technical field, particularly a kind of bare fibre polishing nano modification diamond and polishing fluid thereof and polished section.
Background technology
Optical fiber is the transmission path of optical signal, is the critical material of opticfiber communication.Optical fiber is made up of fibre core, covering, overlay and overcoat, is the symmetrical right cylinder of a multilayer dielectric structure.The main body of fibre core is silicon-dioxide, and the inside is mixed with other material of trace, in order to improve the optical index of material.Have covering outside fibre core, covering and fibre core have different optical indexs, and the optical index of fibre core is higher, and in order to ensure that optical signal mainly transmits in fibre core, namely bare fibre is made up of fibre core and covering.
Optical fiber lens is a kind of high-accuracy special optical cylindric glass body, and its manufacture method is the shape being processed into certain similar lens at bare fibre end face, makes it in fibre system, reach the effect of light path change or patten transformation.
Traditional optical fiber lens manufacture method mainly adopts bare fibre shredder and the fixture of specialty, and adopt traditional coating polished film under special angle, to carry out grinding and polishing process to bare fibre radial end face, as 0 degree of bare fibre Cross section polishing, 60 degree, 90 degree or 100 degree of bare fibre Cross section polishings etc.The primary process of bare fibre grinding and polishing is, it is that the coating polished film of 3 μm grinds that shredder first sticks abrasive grain, re-using abrasive grain is that the coating polished film of 0.5 μm carries out polishing, thus make the radial end face of bare fibre be processed to the optical fiber lens of different angles, as pyramid type optical lens, wedge type optical fiber lens, plagiohedral optical fiber lens etc.
This traditional coating polished film take plastics film as base band, and be equipped with solvent and solidifying agent with Resin adhesive, and mix with abrasive material, make coating, then coat in base band, drying is made.Wherein the main raw of base band has: the plastics films such as polyester, polyvinyl chloride, nylon, polyethylene, polypropylene, resin comprises the one or more kinds of mixtures in polyester, polyvinyl chloride, urethane, nitrated silk floss, polyacrylic ester, epoxy resin, abrasive material mainly contains the micro mists such as white fused alumina, silicon carbide, chromic oxide, ferric oxide, silicon oxide, cerium oxide, diamond, coating process adopts pulley type painting work machine or spraying machine that coating is coated in film surface equably, as namely disclosed this kind of coating process in patent documentation CN 1207328C, polished film is prepared with this technique, need to use resin adhesive in large quantities, factory building and facility investment large, simultaneously, because pulley type is coated with the roller speed of work machine or spraying machine, linear speed higher (50 ~ 200m/min), abrasive material charging capacity is minimum must not be less than 5kg, when user needs short run, during the product that very special quality requires, due to the restriction of machine construction, be difficult to meet user's needs by changing technique fast.Disclose in patent documentation CN101225281B and adopt cast coating method preparation, be dissolved in organic solvent by powdery or granular resin, and add functional additive and make Resin adhesive, again the ultra-fine micropowder abrasive through surface modification is joined in Resin adhesive, fully be mixed and made into coating fluid, then with cast coating method, coating is coated on flexible substrate material surface equably, drying, solidification, obtain coating polished film, although the facility investment of this coating polished film is little, simple to operate, but in preparation process, still add a large amount of powderies or granular resin, abrasive material remains to be wrapped in Resin adhesive and is coated in film strip primary surface, still tradition coating polished film is belonged to.
When adopting this tradition coating polished film to carry out grinding and polishing to bare fibre radial end face, there is following shortcoming: 1) tradition coating polished film is coated on PET strip base after abrasive material is mixed with sizing agent and makes, due to the existence of sizing agent, cause this traditional coating polished film when carrying out polishing to the end face of bare fibre, the arris in wedge type or plagiohedral bare fibre cross section can scratch the generation of the sizing agent of parcel abrasive material, this occurs causing the bare fibre cross section after polishing having cull, and this has had a strong impact on the transmission of optical signal; 2) tradition coating polished film can not apply nano level abrasive material, and this causes polished film abrasive grain large, in grinding and polishing process, easily produce cut at bare fibre end face.
Summary of the invention
The present invention's first object is to provide a kind of Nano diamond of surface modification, and adamantine preparation method is as follows in this modification:
1) be that 100nm-200nm diadust is added to the water by granularity, the mass volume ratio of described diadust and water is 2.5-10:1, and under 0.2-0.5kw condition, ultrasonic 1-5min makes diadust fully scatter, and forms diadust dispersion;
2) in described diadust dispersion, alcohols modification solvent is added, the mass volume ratio of described diadust and alcohols modification solvent is 0.05-0.2:1, described alcohols modification solvent is selected from one or more in propyl carbinol, isopropylcarbinol, Pentyl alcohol, and under 1-3kw condition, ultrasonic 10-30min dispersion forms mixed uniformly suspension system;
3) stirred in water bath described suspension liquid being tied up to 60-100 DEG C forms slurry;
4) in described slurry, add silane coupling agent, the mass ratio of described diadust and silane coupling agent is 10-40:1, stirs, modification 20-80min, suction filtration, washs and obtain modified Nano diamond.
In the present invention, described mass volume ratio, all according to SI units, is g/mL or kg/L.
In the present invention, described Nano diamond micro mist be selected from single-crystal diamond micro mist, polycrystalline diamond micro mist one or both.
In the present invention, described silane coupling agent comprises γ-aminopropyl triethoxysilane (KH550), γ-(2,3-epoxy third oxygen) propyl trimethoxy silicane (KH560), one or more in γ-methacryloxypropyl trimethoxy silane, preferred γ-methacryloxypropyl trimethoxy silane (KH570).Firmly hydrogen bond can be formed on the one hand with diadust, there is C=C key in its molecular structure simultaneously, under certain condition can and polymer base material between chemical bonding, effectively can strengthen the cohesive force between Nano diamond and polymkeric substance, thus ensure that micro mist can not be got rid of on PET strip base.
In the present invention, preferably, the preparation method of modified Nano diadust is as follows:
1) be that 100nm-200nm diadust is added to the water by granularity, the mass volume ratio of described diadust and water is 2.5-10:1, and under 0.3-0.4kw condition, ultrasonic 1-5min makes diadust fully scatter, and forms diadust dispersion;
2) in described diadust dispersion, alcohols modification solvent is added, the mass volume ratio of described diadust and alcohols modification solvent is 0.05-0.1:1, described alcohols modification solvent is selected from one or more in propyl carbinol, isopropylcarbinol, Pentyl alcohol, and under 1-2kw condition, ultrasonic 10-30min dispersion forms mixed uniformly suspension system;
3) stirred in water bath described suspension liquid being tied up to 60-100 DEG C forms slurry;
4) in described slurry, add silane coupling agent, the mass ratio of described diadust and silane coupling agent is 10-30:1, stirs, modification 30-60min, suction filtration, washs and obtain modified Nano diamond.
Nano diamond micro mist is water-based, if be finally dispersed in water, methyl alcohol, ethanol, acetone or butanone polar solvent, can present the suspension of stable homogeneous.If prepare nano-polishing sheet by the method for spin coating, Nano diamond micro mist need be made to be dispersed in water, methyl alcohol, ethanol, acetone or butanone polar solvent do not reunite, and can precipitate very soon again, band primary surface stayed by such guarantee micro mist dropped in the drop on tape base, and liquid portion is thrown out.Use the Nano diamond of the method for the invention modification, moment of dipole is close to 0 (accurate nonpolar), and Nano diamond micro mist is not easily reunited.And according to the principle of similar compatibility, modified Nano diamond not easily stable suspersion, at water, methyl alcohol, ethanol, acetone or butanone polar solvent, can precipitate after joining above solvent, present demixing phenomenon.Utilize the demixing phenomenon of this powder and liquid, ensure that diadust can not be got rid of away when spin coating.(precipitation described herein is not the silent as the grave shallow lake of ordinary meaning, but soft precipitation, half state suspended, rocks a little and just can scatter)
The present invention's second object is to provide a kind of nano diamond polishing liquid, and this polishing fluid is made up of the material of following weight part: modified Nano diamond 8-15 weight part, volatile organic solvent 85-92 weight part.
Described polishing fluid preparation method is as follows:
1) by described modified Nano diamond 80-100 DEG C of oven dry;
2) get the product after the oven dry of 8-15 weight part, add volatile organic solvent of 85-92 weight part wherein, ultrasonic disperse is even, obtains nano diamond polishing liquid.
The fast organic solvent of volatility described in the present invention is preferably anhydrous methanol, dehydrated alcohol, acetone, butanone.
Adopt polishing fluid prepared by present method, organic solvent volatilization is fast, and be namely coated with i.e. use, preparation method is simple and quick, and production cost is lower.
The present invention's the 3rd object is to provide a kind of Nano diamond polished section, and this polished section preparation method is: on the tape base of the rotation dropped in by described nano diamond polishing liquid.
The drop of polishing described in the present invention speed for 30-120 drip/minute.
Tape base described in the present invention is PET strip base, and its speed of rotation is 500-700r/min.
Technique scheme of the present invention is compared compared to existing technology and is had the following advantages:
(1) compare with traditional polished section, polished section of the present invention more saves cost.Traditional polished section is at about 10 yuan, and 50mL one bottle of polishing fluid price of the present invention is at about 500 yuan, and spin coating can go out 200-300 sheet polished section, every sheet price is at about 2.5 yuan.
(2) select nano level diamond as abrasive material, abrasive grain is little, in the process of polishing, not easily produce cut to the end face of bare fibre.
(3) in abrasive material, polycrystalline diamond is added; many the crystal edges had by polycrystalline diamond and multiple grinding surface; thus when carrying out polished finish to bare fibre; have higher cutting power, meanwhile, polycrystalline diamond has good toughness and self-sharpening as abrasive material; and in polishing process; coarse particles can be broken into less particle, effectively avoids causing scuffing to workpiece surface, ensure that workpiece surface quality.
(4) from quality of finish, because do not add sizing agent in the polished section preparation process in the present invention, glue-free system is belonged to, so in bare fibre polishing process, glue can not be had on cross section to remain, so loss is lower in optical transmission process, also reduce further production cost.
(5) facility investment needed for spin coating polished section preparation of the present invention is little, simple to operate.
Accompanying drawing explanation
Fig. 1: tradition coating polished film electromicroscopic photograph;
Fig. 2: the electromicroscopic photograph of spin coating polished section;
Fig. 3: with tradition coating polished film polishing bare fibre, the cross section picture after polishing;
Fig. 4: with spin coating polished section polishing bare fibre of the present invention, the cross section picture after polishing.
Embodiment
Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Embodiment 1
The present embodiment relates to a kind of modified Nano diamond, and described modified Nano diamond is adopted and is prepared from the following method:
1) be that 100nm-200nm diadust adds in 1mL water by 2.5g granularity, the ultrasonic 5min of power 0.2kw, makes diadust fully scatter;
2) add the isopropylcarbinol of 50mL, ultrasonic disperse 20min under 1.5kw, form mixed uniformly suspension system;
3) suspension system is placed in the water-bath of 85 DEG C, stirs and form slurry;
4) add 0.2g silane coupling agent KH570 in the slurry, stir, modification 30min, suction filtration, wash and obtain the lipophilic nano diamond of modification.
Embodiment 2
The present embodiment relates to a kind of modified Nano diamond, and described modified Nano diamond is adopted and is prepared from the following method:
1) be that 100nm-200nm diadust adds in 0.5mL water by 3g granularity, the ultrasonic 1min of power 0.5kw, makes diadust fully scatter;
2) add the propyl carbinol of 50mL, ultrasonic disperse 30min under 1kw condition, form mixed uniformly suspension system;
3) suspension system is placed in the water-bath of 80 DEG C, stirs and form slurry;
4) add 0.1g silane coupling agent KH560 in the slurry, stir, modification 45min, suction filtration, wash and obtain the lipophilic nano diamond of modification.
Embodiment 3
The present embodiment relates to a kind of modified Nano diamond, and described modified Nano diamond is adopted and is prepared from the following method:
1) be that 100nm-200nm diadust adds in 0.5mL water by 5g granularity, the ultrasonic 1min of power 0.4kw, makes diadust fully scatter;
2) add the Pentyl alcohol of 100mL, ultrasonic disperse 10min under 3kw condition, form mixed uniformly suspension system;
3) suspension system is placed in the water-bath of 60 DEG C, stirs and form slurry;
4) add 0.2g Silane coupling agent KH550 and 0.3g silane coupling agent KH570 in the slurry, stir, modification 60min, suction filtration, wash and obtain modified Nano diamond.
Embodiment 4
The present embodiment relates to a kind of modified Nano diamond, and described modified Nano diamond is adopted and is prepared from the following method:
1) be that 100nm-200nm diadust adds in 1.5mL water by 7g granularity, the ultrasonic 4min of power 0.3kw, makes diadust fully scatter;
2) add the Pentyl alcohol of 20mL and the propyl carbinol of 50mL, ultrasonic disperse 10min under 3kw condition, form mixed uniformly suspension system;
3) suspension system is placed in the water-bath of 60 DEG C, stirs and form slurry;
4) add 0.5g Silane coupling agent KH550 in the slurry, stir, modification 60min, suction filtration, wash and obtain modified Nano diamond.
Embodiment 5
The present embodiment relates to a kind of nano diamond polishing liquid, and described nano diamond polishing liquid is adopted and is prepared from the following method.
By modified Nano diadust obtained in embodiment 1,80 DEG C of oven dry, take the pulvis after 13 weight parts oven dry, add 7 weight part anhydrous methanols and 80 weight part dehydrated alcohols wherein, the ultrasonic 10min of 1kw, makes it be uniformly dispersed, makes nano diamond polishing liquid.
Embodiment 6
The present embodiment relates to a kind of nano diamond polishing liquid, and described nano diamond polishing liquid is adopted and is prepared from the following method.
By modified Nano diadust obtained in embodiment 2,90 DEG C of oven dry, get the product after 10 weight parts oven dry, add 5 weight part dehydrated alcohols and 85 weight part butanone wherein, the ultrasonic 10min of 1.5kw, makes it be uniformly dispersed, makes nano diamond polishing liquid.
Embodiment 7
The present embodiment relates to a kind of nano diamond polishing liquid, and described nano diamond polishing liquid is adopted and is prepared from the following method.
By modified Nano diadust obtained in embodiment 3,95 DEG C of oven dry, get the product after 9 weight parts oven dry, add 91 weight part dehydrated alcohols wherein, the ultrasonic 10min of 1.5kw, makes it be uniformly dispersed, makes nano diamond polishing liquid.
Embodiment 8
The present embodiment relates to a kind of nano diamond polishing liquid, and described nano diamond polishing liquid is adopted and is prepared from the following method.
By modified Nano diadust obtained in embodiment 2,100 DEG C of oven dry, get the product after 8 weight parts oven dry, add 92 weight part anhydrous methanols wherein, the ultrasonic 20min of 2kw, makes it be uniformly dispersed, makes nano diamond polishing liquid.
Embodiment 9
The present embodiment relates to a kind of nano diamond polishing liquid, and described nano diamond polishing liquid is adopted and is prepared from the following method.
By modified Nano diadust obtained in embodiment 1,100 DEG C of oven dry, get the product after 8 weight parts oven dry, add the dehydrated alcohol of 82 weight parts and the acetone of 10 weight parts wherein, the ultrasonic 20min of 1kw, makes it be uniformly dispersed, makes nano diamond polishing liquid.
Embodiment 10
The present embodiment relates to a kind of nano diamond polishing liquid, and described nano diamond polishing liquid is adopted and is prepared from the following method.
By modified Nano diadust obtained in embodiment 3,85 DEG C of oven dry, get the oven dry product of 10 weight parts, add the acetone of 90 weight parts wherein, the ultrasonic 20min of 1.5kw, makes it be uniformly dispersed, makes nano diamond polishing liquid.
Embodiment 11
The present embodiment relates to a kind of nano diamond polishing liquid, and described nano diamond polishing liquid is adopted and is prepared from the following method.
By modified Nano diadust obtained in embodiment 3,90 DEG C of oven dry, get the oven dry product of 15 weight parts, add the anhydrous methanol of 80 weight parts and the butanone of 5 weight parts wherein, the ultrasonic 10min of 2kw, makes it be uniformly dispersed, makes nano diamond polishing liquid.
Embodiment 12
The present embodiment relates to a kind of nano diamond polishing liquid, and described nano diamond polishing liquid is adopted and is prepared from the following method
By modified Nano diadust obtained in embodiment 1,90 DEG C of oven dry, get the modification diadust of 12 weight parts, add the anhydrous methanol of 85 weight parts and the acetone of 3 weight parts wherein, the ultrasonic 20min of 1kw, makes it be uniformly dispersed, makes nano diamond polishing liquid.
Embodiment 13
The present embodiment relates to a kind of polished section, and described polished section is adopted and is prepared from the following method.
Tape base is fixed on shredder, and shredder rotates with 500r/min speed, and polishing fluid obtained in embodiment 5 drops on the tape base of rotation with the speed of 60/min, rotates 0.2min.
Embodiment 14
The present embodiment relates to a kind of polished section, and described polished section is adopted and is prepared from the following method.
Tape base is fixed on shredder, and shredder rotates with 550r/min speed, drops on the tape base of rotation by polishing fluid obtained in embodiment 6 with the speed of 30/min, rotates 0.3min.
Embodiment 15
The present embodiment relates to a kind of polished section, and described polished section is adopted and is prepared from the following method.
Tape base is fixed on shredder, and shredder rotates with 400r/min speed, drops on the tape base of rotation by polishing fluid obtained in embodiment 7 with the speed of 100/min, rotates 0.1min.
Embodiment 16
The present embodiment relates to a kind of polished section, and described polished section is adopted and is prepared from the following method.
Tape base is fixed on shredder, and shredder rotates with 450r/min speed, drops on the tape base of rotation by polishing fluid obtained in embodiment 8 with the speed of 120/min, rotates 0.1min.
Embodiment 17
The present embodiment relates to a kind of polished section, and described polished section is adopted and is prepared from the following method.
Tape base is fixed on shredder, and shredder rotates with 500r/min speed, drops on the tape base of rotation by polishing fluid obtained in embodiment 9 with the speed of 90/min, rotates 0.15min.
Embodiment 18
The present embodiment relates to a kind of polished section, and described polished section is adopted and is prepared from the following method.
Tape base is fixed on shredder, and shredder rotates with 300r/min speed, drops on the tape base of rotation by polishing fluid obtained in embodiment 10 with the speed of 90/min, rotates 0.2min.
Embodiment 19
The present embodiment relates to a kind of polished section, and described polished section is adopted and is prepared from the following method.
Tape base is fixed on shredder, and shredder rotates with 500r/min speed, drops on the tape base of rotation by polishing fluid obtained in embodiment 11 with the speed of 120/min, rotates 0.1min.
Embodiment 20
The present embodiment relates to a kind of polished section, and described polished section is adopted and is prepared from the following method.
Tape base is fixed on shredder, and shredder rotates with 350r/min speed, drops on the tape base of rotation by polishing fluid obtained in embodiment 12 with the speed of 60/min, rotates 0.3min.
Experimental example 1
Subjects:
Experimental group 1: the polished section that the embodiment of the present invention 19 obtains;
Control group 1: compare with embodiment 19, its difference is only, in the adamantine preparation process of described modified Nano, omits step (1).
Control group 2: compare with embodiment 19, its difference is only, in the adamantine preparation process of described modified Nano, step (1) is with the ultrasound condition in step (2): ultrasonic disperse 1min under 0.4kw condition.
Control group 3: compare with embodiment 19, its difference is only, in the adamantine preparation process of described modified Nano, the ultrasound condition in step (1) is ultrasonic disperse 10min under 3kw condition, and the ultrasound condition in step (2) is the ultrasonic 1min of 0.4kw.
Control group 4: tradition coating polished film, described coating polished film originates from Beijing Science and Technology Co., Ltd. of RISESUN of state;
Control group 1 to control group 3, compares with embodiment 19, and because method of modifying is undesirable, therefore cannot obtain the polishing fluid that can be used for preparing polished section, in the process of preparation polished section, the micro mist major part in polishing fluid is thrown out of, and cannot obtain qualified polished section.
Experimental technique: (1) is examined the microtexture of the polished section of embodiment 19 and control group 4 under an electron microscope.
(2) optical fiber end/tangent plane detector is used to detect the polishing effect of the embodiment of the present invention 19 and comparative example 4 under the condition of magnification 800 times.
Effect analysis:
The microtexture of the polished section of embodiment 19 and comparative example 4 is contrasted, as can be seen from Fig. 1 and Fig. 2, polished section with comparative example 4 is compared, micro mist in the polished section of spin coating gained is self-existent, be not fixed on tape base with sizing agent, the micro mist distribution in spin coating gained polished section is comparatively intensive.
As can be seen from Fig. 3 and Fig. 4, after carrying out polishing by the polished section of comparative example 4 to optical fiber, fiber cross-sections has the residual of sizing agent, and polishing effect is undesirable, and this can affect the transmission efficiency of signal, and optical loss is larger; After carrying out polishing by embodiment 19 gained polished section to optical fiber, fiber cross-sections is very smooth, does not occur that spot remains, greatly will improve the transmission efficiency of optical signal like this.
In a word, polished section cost of the present invention is low, and glue-free residual in the process used, can not produce cut to optical fiber, polishing effect is better.
Although above the present invention is described in detail with a general description of the specific embodiments, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention.
Claims (10)
1. a modified Nano diamond, is characterized in that, is prepared from by the method comprised the steps:
1) be that 100nm-200nm diadust is added to the water by granularity, the mass volume ratio of described diadust and water is 2.5-10:1, and under 0.2-0.5kw condition, ultrasonic 1-5min makes diadust fully scatter, and forms diadust dispersion;
2) in described diadust dispersion, alcohols modification solvent is added, the mass volume ratio of described diadust and alcohols modification solvent is 0.05-0.2:1, described alcohols modification solvent is selected from one or more in propyl carbinol, isopropylcarbinol, Pentyl alcohol, and under 1-3kw condition, ultrasonic 10-30min dispersion forms mixed uniformly suspension system;
3) stirred in water bath described suspension liquid being tied up to 60-100 DEG C forms slurry;
4) in described slurry, add silane coupling agent, the mass ratio of described diadust and silane coupling agent is 10-40:1, stirs, modification 20-80min, suction filtration, washs and obtain modified Nano diamond.
2. modified Nano diamond according to claim 1, is characterized in that, is prepared from by the method comprised the steps:
1) be that 100nm-200nm diadust is added to the water by granularity, the mass volume ratio of described diadust and water is 2.5-10:1, and under 0.3-0.4kw condition, ultrasonic 1-5min makes diadust fully scatter, and forms diadust dispersion;
2) in described diadust dispersion, alcohols modification solvent is added, the mass volume ratio of described diadust and alcohols modification solvent is 0.05-0.1:1, described alcohols modification solvent is selected from one or more in propyl carbinol, isopropylcarbinol, Pentyl alcohol, and under 1-2kw condition, ultrasonic 10-30min dispersion forms mixed uniformly suspension system;
3) stirred in water bath described suspension liquid being tied up to 60-100 DEG C forms slurry;
4) in described slurry, add silane coupling agent, the mass ratio of described diadust and silane coupling agent is 10-30:1, stirs, modification 30-60min, suction filtration, washs and obtain modified Nano diamond.
3. modified Nano diamond according to claim 1 and 2, is characterized in that, described diadust be selected from single crystal diamond micro mist, polycrystalline diamond micro mist one or both.
4. modified Nano diamond according to claim 3, it is characterized in that, described silane coupling agent is selected from γ-aminopropyl triethoxysilane, γ-(2,3-epoxy third oxygen) propyl trimethoxy silicane, one or more in γ-methacryloxypropyl trimethoxy silane, preferred γ-methacryloxypropyl trimethoxy silane.
5. one kind contains the adamantine polishing fluid of modified Nano described in any one of claim 1-4.
6. polishing fluid according to claim 5, is characterized in that, by weight, comprises following component: modified Nano diamond 8-15 weight part, volatile organic solvent 85-92 weight part.
7. polishing fluid according to claim 6, is characterized in that, described volatile organic solvent comprises one or more in anhydrous methanol, dehydrated alcohol, acetone, butanone.
8. the preparation method of polishing fluid described in any one of claim 5-7, comprises the steps:
1) by described modified Nano diamond 80-100 DEG C of oven dry;
2) get the product after the oven dry of 8-15 weight part, add the volatile organic solvent of 85-92 weight part wherein, ultrasonic disperse is even, obtains nano diamond polishing liquid.
9. one kind adopts the polished section that described in any one of claim 5-7 prepared by polishing fluid; Preferably, this polished section is adopted and is prepared from the following method: on the tape base of the rotation dropped in by described nano diamond polishing liquid.
10. polished section according to claim 9, is characterized in that, described tape base is PET strip base, and its speed of rotation is 300-550r/min, polishing drop speed for 30-120 drip/minute.
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