CN108927740A - A kind of abrasive sheet and preparation method thereof - Google Patents
A kind of abrasive sheet and preparation method thereof Download PDFInfo
- Publication number
- CN108927740A CN108927740A CN201810878416.1A CN201810878416A CN108927740A CN 108927740 A CN108927740 A CN 108927740A CN 201810878416 A CN201810878416 A CN 201810878416A CN 108927740 A CN108927740 A CN 108927740A
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- China
- Prior art keywords
- abrasive sheet
- average grain
- grain diameter
- preparation
- silica
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/0054—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for by impressing abrasive powder in a matrix
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/11—Lapping tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The present invention provides a kind of abrasive sheet and preparation method thereof, which includes: 1) tentatively to be melted lac resin, isocyanates, fatty acid, is subsequently added into phenolic resin and carries out second melting to obtain fusant；2) fusant is added in diamond, silica, Brown Alundum, cerium oxide, talcum powder to mix so that mixture is made, mixture is then laid in the surface of PET polyester film, then cooling, cutting is to be made abrasive sheet；Wherein, the average grain diameter of diamond is 0.2-0.3 μm, and the average grain diameter of silica is 10-15nm, and the average grain diameter of Brown Alundum is 0.02-0.05 μm, and the average grain diameter of cerium oxide is 8-12nm.Abrasive sheet prepared by the present invention has excellent stability, and process is simple, easy to operate.
Description
Technical field
The present invention relates to a kind of abrasive sheets, and in particular, to a kind of abrasive sheet and preparation method thereof.
Background technique
Abrasive sheet refers to using ultraprecise coating technique, and selected micron or nanoscale abrasive micropowder and high-performance are bonded
After agent is evenly dispersed, it is coated on high-strength PET polyester film (PET is polyethylene terephthalate) surface, is then passed through
High-precision cuts technique and is process.Abrasive sheet is very extensive with field, such as optical communication field, micromotor field, hard disk
Field etc..Below with regard to specific product application be described in detail: diamond lap piece be applied to optical fiber connector, hard disc magnetic head, disk,
Optical glass, optical crystal, LED, LCD, semiconductor material grinding and polishing；Silicon carbide abrasive sheet is applied to going for ceramic insertion core
The fine-grinding and polishing of glue corase grinding, the grinding and polishing of plastics lock pin, magnetic head；Alumina lap piece be applied to optical fiber connector grinding,
The grinding of silicon chip of solar cell, the removal of hard disk carbon-coating protrusion, the removal of ITO protrusion, optical material grinding and polishing；Oxidation
Cerium abrasive sheet is convex applied to the grinding of optical fiber connector, the grinding of silicon chip of solar cell, the removal of hard disk carbon-coating protrusion, ITO
The grinding and polishing of the removal, optical material that rise；Silica abrasive piece is applied to the final Ultraprecise polished of optical fiber connector.
Although existing abrasive sheet can satisfy in most production requirement, abrasive sheet is in grinding, polishing process
In then there is excessive temperature (or even can 1400 DEG C), but often heat dispersal situations are undesirable for existing abrasive sheet, cannot dissipate in time
It loses and then the hardness of abrasive sheet and mechanical strength is caused to reduce.
Summary of the invention
The object of the present invention is to provide a kind of abrasive sheet and preparation method thereof, which is had excellent stability, together
When the preparation method have the advantages that process is simple, easy to operate.
To achieve the goals above, the present invention provides a kind of preparation methods of abrasive sheet, comprising:
1) lac resin, isocyanates, fatty acid are tentatively melted, is subsequently added into phenolic resin and carries out second melting to obtain
To fusant；
2) diamond, silica, Brown Alundum, cerium oxide, talcum powder are added fusant and mixed so that mixture is made, will then mixed
The surface that object is laid in PET polyester film is closed, then cooling, cutting is to be made abrasive sheet；
Wherein, the average grain diameter of diamond is 0.2-0.3 μm, and the average grain diameter of silica is 10-15nm, the average grain of Brown Alundum
Diameter is 0.02-0.05 μm, and the average grain diameter of cerium oxide is 8-12nm.
The present invention also provides a kind of abrasive sheet, which is prepared by above-mentioned preparation method.
In the above-mentioned technical solutions, the present invention is preferred is modified lac resin by isocyanates, fatty acid
It prevents etherificate polymerization of the lac resin in thermal histories to improve it by hot property, while phenolic resin is added and is compounded
And then improve the heat resistance of binder；In addition, being optimized by the partial size to diamond, silica, Brown Alundum, cerium oxide
Screening, so that the heat conduction efficiency of abrasive sheet made of improving is to improve its stability.The preparation method has process letter simultaneously
Single, advantage easy to operate.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Specific embodiment
Detailed description of the preferred embodiments below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The present invention provides a kind of preparation methods of abrasive sheet, comprising:
1) lac resin, isocyanates, fatty acid are tentatively melted, is subsequently added into phenolic resin and carries out second melting to obtain
To fusant；
2) diamond, silica, Brown Alundum, cerium oxide, talcum powder are added fusant and mixed so that mixture is made, will then mixed
The surface that object is laid in PET polyester film is closed, then cooling, cutting is to be made abrasive sheet；
Wherein, the average grain diameter of diamond is 0.2-0.3 μm, and the average grain diameter of silica is 10-15nm, the average grain of Brown Alundum
Diameter is 0.02-0.05 μm, and the average grain diameter of cerium oxide is 8-12nm.
In step 1) of the invention, the dosage of each material can select in a wide range, grind to further increase
The stability of grinding, it is preferable that in step 1), lac resin, isocyanates, fatty acid, phenolic resin weight ratio be 10:
0.5-0.9:1.5-3:2-5.
In step 1) of the invention, the condition tentatively merged can select in a wide range, in order to further increase
The stability of abrasive sheet, it is preferable that in step 1), preliminary fusion meets the following conditions: melting temperature is 180-195 DEG C, is melted
Melting the time is 25-45min.
In step 1) of the invention, the condition of secondary fusion can select in a wide range, in order to further increase
The stability of abrasive sheet, it is preferable that in step 1), two hyposynchronization fusions meet the following conditions: melting temperature is 210-220 DEG C,
Melting time is 25-35min.
In step 2) of the invention, the dosage of each material can select in a wide range, grind to further increase
The stability of grinding, it is preferable that in step 2, fusant, diamond, silica, Brown Alundum, cerium oxide, talcum powder weight
Amount is than being 15:1-3:42-46:22-25:6-10:5-12.
In step 2) of the invention, the mixed time can select in a wide range, in order to further increase grinding
The stability of piece, it is preferable that in step 2, the mixed time is 15-25min.
In step 2) of the invention, cooling condition can select in a wide range, in order to further increase grinding
The stability of piece, it is preferable that cooling to meet the following conditions in step 2: to be first cooled to the rate of 0.2-0.5 DEG C/min
75-80 DEG C and keep the temperature 40-60min, be then cooled to 40-50 DEG C with the rate of 1.2-1.5 DEG C/min and keep the temperature 2-4h, it is last from
It is so cooling.
In step 1) of the invention, the type of isocyanates and fatty acid can select in a wide range, in order into
One step improves the stability of abrasive sheet, and isocyanates is selected from toluene di-isocyanate(TDI), isophorone diisocyanate, diphenylmethyl
At least one of alkane diisocyanate, dicyclohexyl methyl hydride diisocyanate, fatty acid are selected from palmitinic acid, oleic acid, linoleic acid
At least one of with stearic acid.
The present invention also provides a kind of abrasive sheet, which is prepared by above-mentioned preparation method.
The present invention will be described in detail by way of examples below.
Embodiment 1
1) lac resin, isocyanates (toluene di-isocyanate(TDI)), fatty acid (palmitinic acid) are tentatively melted into (melting temperature
Be 185 DEG C, melting time 35min), it is subsequently added into phenolic resin and carries out second melting (melting temperature is 215 DEG C, when melting
Between be 30min) with obtain fusant (lac resin, isocyanates, fatty acid, phenolic resin weight ratio for 10:0.7:2:
3)；
2) fusant mixing 20min is added in diamond, silica, Brown Alundum, cerium oxide, talcum powder (to melt so that mixture is made
Melt object, diamond, silica, Brown Alundum, cerium oxide, talcum powder weight ratio be 15:2:44:26:8:10), then will mixing
Object is laid in the surface of PET polyester film, is then first cooled to 78 DEG C with the rate of 0.4 DEG C/min and keeps the temperature 50min, then with
The rate of 1.4 DEG C/min is cooled to 45 DEG C and keeps the temperature 3h, and last natural cooling is cut so that abrasive sheet A1 is made；
Wherein, the average grain diameter of diamond is 0.25 μm, and the average grain diameter of silica is 13nm, and the average grain diameter of Brown Alundum is
0.04 μm, the average grain diameter of cerium oxide is 10nm.
Embodiment 2
1) lac resin, isocyanates (isophorone diisocyanate), fatty acid (oleic acid) are tentatively melted into (melting temperature
Degree is 180 DEG C, melting time 45min), being subsequently added into phenolic resin progress second melting, (melting temperature is 210 DEG C, melting
Time is 35min) with obtain fusant (lac resin, isocyanates, fatty acid, phenolic resin weight ratio be 10:0.5:
1.5:2)；
2) fusant mixing 15min is added in diamond, silica, Brown Alundum, cerium oxide, talcum powder (to melt so that mixture is made
Melt object, diamond, silica, Brown Alundum, cerium oxide, talcum powder weight ratio be 15:1:42:22:6:5), then by mixture
It is laid in the surface of PET polyester film, be then first cooled to 75 DEG C with the rate of 0.2 DEG C/min and keeps the temperature 40min, then with 1.2
DEG C/rate of min is cooled to 40 DEG C and keeps the temperature 2h, last natural cooling is cut so that abrasive sheet A2 is made；
Wherein, the average grain diameter of diamond is 0.2 μm, and the average grain diameter of silica is 10nm, and the average grain diameter of Brown Alundum is
0.02 μm, the average grain diameter of cerium oxide is 8nm.
Embodiment 3
1) lac resin, isocyanates (dicyclohexyl methyl hydride diisocyanate), fatty acid (stearic acid) are tentatively melted
(melting temperature is 195 DEG C, melting time 25min), is subsequently added into phenolic resin and carries out second melting (melting temperature 220
DEG C, melting time 25min) with obtain fusant (lac resin, isocyanates, fatty acid, phenolic resin weight ratio be
10:0.9:3:5)；
2) fusant mixing 25min is added in diamond, silica, Brown Alundum, cerium oxide, talcum powder (to melt so that mixture is made
Melt object, diamond, silica, Brown Alundum, cerium oxide, talcum powder weight ratio be 15:3:46:25:10:12), then will mixing
Object is laid in the surface of PET polyester film, is then first cooled to 80 DEG C with the rate of 0.5 DEG C/min and keeps the temperature 60min, then with
The rate of 1.5 DEG C/min is cooled to 50 DEG C and keeps the temperature 4h, and last natural cooling is cut so that abrasive sheet A3 is made；
Wherein, the average grain diameter of diamond is 0.3 μm, and the average grain diameter of silica is 15nm, and the average grain diameter of Brown Alundum is
0.05 μm, the average grain diameter of cerium oxide is 12nm.
Comparative example 1
It carries out that abrasive sheet B1 is made according to the method for embodiment 1, unlike, isocyanates, fatty acid are not used in step 1).
Comparative example 2
It carries out abrasive sheet B2 is made according to the method for embodiment 1, unlike, silica in step 1), Brown Alundum, cerium oxide
Average grain diameter is 10-15nm.
Comparative example 3
It carries out abrasive sheet B3 is made according to the method for embodiment 1, unlike, silica in step 1), Brown Alundum, cerium oxide
Average grain diameter is 0.02-0.05 μm.
Comparative example 4
It carries out abrasive sheet B4 is made according to the method for embodiment 1, unlike, silica in step 1), Brown Alundum, cerium oxide
Average grain diameter is 8-12nm.
Detect example 1
By above-mentioned abrasive sheet with the revolving speed polishing germanium block 30min of 3000rpm, the then variation of detection polishing front and back Morse hardness
Rate, concrete outcome are shown in Table 1.
Table 1
| A1 | A2 | A3 | B1 | B2 | B3 | B4 | |
| Change rate/% | -0.15 | -0.13 | -0.14 | -7.5 | -10.3 | -8.6 | -16.9 |
The preferred embodiment of the present invention has been described above in detail, still, the tool during present invention is not limited to the embodiments described above
Body details within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, these letters
Monotropic type all belongs to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (6)
1. a kind of preparation method of abrasive sheet characterized by comprising
1) lac resin, isocyanates, fatty acid are tentatively melted, is subsequently added into phenolic resin and carries out second melting to obtain
To fusant；
2) diamond, silica, Brown Alundum, cerium oxide, talcum powder are added the fusant and mixed mixture is made, then
The mixture is laid in the surface of the PET polyester film, then cooling, cutting is to be made the abrasive sheet；
Wherein, the average grain diameter of the diamond is 0.2-0.3 μm, and the average grain diameter of the silica is 10-15nm, the palm fibre
The average grain diameter of corundum is 0.02-0.05 μm, and the average grain diameter of the cerium oxide is 8-12nm.
2. preparation method according to claim 1, wherein in step 1):
The lac resin, isocyanates, fatty acid, phenolic resin weight ratio be 10:0.5-0.9:1.5-3:2-5；
The preliminary fusion meets the following conditions: melting temperature is 180-195 DEG C, melting time 25-45min；
The two hyposynchronization fusion meets the following conditions: melting temperature is 210-220 DEG C, melting time 25-35min.
3. preparation method according to claim 1, wherein in step 2, the fusant, diamond, silica, palm fibre
Corundum, cerium oxide, talcum powder weight ratio be 15:1-3:42-46:22-25:6-10:5-12.
4. preparation method according to claim 1, wherein in step 2, the mixed time is 15-25min.
5. preparation method according to claim 1, wherein in step 2, the cooling meets the following conditions: first with
The rate of 0.2-0.5 DEG C/min is cooled to 75-80 DEG C and keeps the temperature 40-60min, is then cooled down with the rate of 1.2-1.5 DEG C/min
To 40-50 DEG C and keep the temperature 2-4h, last natural cooling.
6. a kind of abrasive sheet, which is characterized in that the abrasive sheet passes through preparation method described in any one of claim 1-5
It is prepared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810878416.1A CN108927740A (en) | 2018-08-03 | 2018-08-03 | A kind of abrasive sheet and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810878416.1A CN108927740A (en) | 2018-08-03 | 2018-08-03 | A kind of abrasive sheet and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN108927740A true CN108927740A (en) | 2018-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810878416.1A Withdrawn CN108927740A (en) | 2018-08-03 | 2018-08-03 | A kind of abrasive sheet and preparation method thereof |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110256970A (en) * | 2019-07-06 | 2019-09-20 | 深圳市瑞来稀土材料有限公司 | A kind of polishing powder and preparation method thereof |
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| CN1376726A (en) * | 2001-03-22 | 2002-10-30 | 王振国 | Polishing film and its preparing process |
| CN1464014A (en) * | 2002-06-14 | 2003-12-31 | 北京国瑞升科技有限公司 | Ultraprecise polished film and method for manufacturing the same |
| US20080248726A1 (en) * | 2004-01-23 | 2008-10-09 | Bando Chemical Industries, Ltd. | Polishing Method and Polishing Film Used in Such Polishing Method |
| CN104275651A (en) * | 2014-09-26 | 2015-01-14 | 河南省联合磨料磨具有限公司 | Diamond polishing film production method |
| CN105415211A (en) * | 2015-12-25 | 2016-03-23 | 江苏锋芒复合材料科技集团有限公司 | Waterproof emery cloth for grinding of car industry and manufacturing method thereof |
| CN105500225A (en) * | 2015-12-25 | 2016-04-20 | 江苏锋芒复合材料科技集团有限公司 | High comprehensive performance composite grinding piece and manufacturing method thereof |
-
2018
- 2018-08-03 CN CN201810878416.1A patent/CN108927740A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1376726A (en) * | 2001-03-22 | 2002-10-30 | 王振国 | Polishing film and its preparing process |
| CN1464014A (en) * | 2002-06-14 | 2003-12-31 | 北京国瑞升科技有限公司 | Ultraprecise polished film and method for manufacturing the same |
| US20080248726A1 (en) * | 2004-01-23 | 2008-10-09 | Bando Chemical Industries, Ltd. | Polishing Method and Polishing Film Used in Such Polishing Method |
| CN104275651A (en) * | 2014-09-26 | 2015-01-14 | 河南省联合磨料磨具有限公司 | Diamond polishing film production method |
| CN105415211A (en) * | 2015-12-25 | 2016-03-23 | 江苏锋芒复合材料科技集团有限公司 | Waterproof emery cloth for grinding of car industry and manufacturing method thereof |
| CN105500225A (en) * | 2015-12-25 | 2016-04-20 | 江苏锋芒复合材料科技集团有限公司 | High comprehensive performance composite grinding piece and manufacturing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110256970A (en) * | 2019-07-06 | 2019-09-20 | 深圳市瑞来稀土材料有限公司 | A kind of polishing powder and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20181204 |