CN109735052A - A kind of diamond resin grinding material and preparation method thereof - Google Patents
A kind of diamond resin grinding material and preparation method thereof Download PDFInfo
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- CN109735052A CN109735052A CN201910029846.0A CN201910029846A CN109735052A CN 109735052 A CN109735052 A CN 109735052A CN 201910029846 A CN201910029846 A CN 201910029846A CN 109735052 A CN109735052 A CN 109735052A
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Abstract
The invention discloses a kind of diamond resin grinding materials and preparation method thereof, are related to grinding-material technical field.Be characterized in that: the raw material that diamond resin is ground material includes following weight percentage components: diamond 3-8%；Cashew nut oil modified alkyd resin 10-15%；Stainless steel powder 5-12%；Copper fiber 5-15%；Auxiliary abrasive material 5-10%；Melamine resin Moulding powder complements to 100%.The present invention cooperates melamine resin Moulding powder by using cashew nut oil modified alkyd resin, adhesive as abrading block, the toughness of abrading block can not only be improved, and crocking resistance is enhanced, further enhance bend resistance intensity and wearability after copper fiber is added.
Description
Technical field
The present invention relates to grinding-material technical field, more specifically, it relates to a kind of diamond resin grinding material and
Preparation method.
Background technique
It is diamond resin fickert made of abrasive grain by bonding agent, addition diamond of resin, this diamond tree
Rouge Bradley abrading block has the advantages that sharpness is good, high in machining efficiency, the service life is long for traditional abrading block, without frequently stopping
The operation labor intensity of machine, Manufacturing Worker is low.
A kind of composite grinding block and its preparation side are disclosed in the Chinese invention patent of Publication No. CN106956226A
Method, composite grinding block include deck and grinding cutter head, and the grinding cutter head is made of resinous abrasive materials and magnesia abrasive material, magnesia
Abrasive material is set to the periphery of corresponding resinous abrasive materials.Resinous abrasive materials include 35-60 parts of resinoid bonds, 5-25 parts by mass fraction ratio
Abrasive material and 5-40 parts of fillers；The magnesia abrasive material includes by 40-60 parts of magnesia and 30-40 parts of magnesium chlorides by mass fraction ratio
Bonding agent and 5-25 part silicon carbide abrasive mixed.Resinoid bond include epoxy resin, phenolic resin, polyvinyl alcohol,
The combination of one or more of vinylite, unsaturated-resin.
The ingredient of enhancing toughness, the toughness and bending resistance of abrading block are not added with as bonding agent only with resin in above-mentioned patent
Folding endurance can be poor, after abrading block molding when by cutting force, easily snaps off, leads to that it has a short service life.
Summary of the invention
In view of the deficienciess of the prior art, the purpose of the present invention one is to provide a kind of diamond resin grinding material,
It has the advantages that good toughness, service life are long.
The purpose of the present invention two is to provide a kind of preparation method of diamond resin grinding material, with good toughness,
The advantage of service life length.
To achieve the above object one, the present invention provides the following technical scheme that
A kind of diamond resin grinding material, raw material include following weight percentage components:
Diamond 3-8%；
Auxiliary abrasive material 5-10%；
Cashew nut oil modified alkyd resin 10-15%；
Stainless steel powder 5-12%；
Copper fiber 5-15%；
Melamine resin Moulding powder complements to 100%.
By using above-mentioned technical proposal, cashew nut oil modified alkyd resin cooperates melamine resin Moulding powder, makees
For the adhesive of abrading block, the toughness of abrading block can not only be improved, and crocking resistance is enhanced, copper fiber laggard one is added
Step enhancing bend resistance intensity and wearability, diamond as primary abrasive and auxiliary abrasive material, stainless steel powder together as wear-resistant material,
Stainless steel powder is not easy to get rusty and can be improved the heat resistance of abrasive material.
Further preferably, raw material further includes modified acrylic fibre, the weight percent of modified acrylic fibre
Than for 1-3%, modified acrylic fibre includes polyacrylonitrile fibre and is sprayed at the corrosion-resistant of polyacrylonitrile fibre surface
Coating.
By using above-mentioned technical proposal, polyacrylonitrile fibre is artificial synthetic fiber, and it is fine that polyacrylonitrile is added in abrading block
After dimension, it is able to ascend the flexural strength, cracking resistance, compression strength of abrading block.The sun-proof function admirable of polyacrylonitrile fibre is resistant to
Acid, antioxidant and common organic solvents, but alkali resistance is poor.The present invention is corrosion-resistant by spraying on polyacrylonitrile fibre surface
On the one hand coating further promotes the performance of polyacrylonitrile fibre acid corrosion-resistant, on the other hand promotes the resistance to of polyacrylonitrile fibre
Caustic corrosion performance extends abrading block service life.
Further preferably, the corrosion-resistant finishes with a thickness of 20-30 μm.
By using above-mentioned technical proposal, when corrosion-resistant finishes thickness is lower than 20 μm, it is difficult to form dense coating, reduce
The corrosion resistance of coating；When corrosion-resistant finishes thickness is greater than 30 μm, the elasticity of polyacrylonitrile fibre can be reduced, and then reduce abrading block
Flexural strength, therefore, the thickness of corrosion-resistant finishes is preferably 20-30 μm.
Further preferably, the corrosion-resistant finishes includes following weight percentage components:
Ptfe emulsion 40-43%；
Diethylene glycol (DEG) 1-3%；
Butyl acetate 6-8%；
Defoaming agent 0.1-0.3%；
Wetting agent 0.1-0.3%；
Coalescing agent 0.2-0.4%；
Surplus is water.
By using above-mentioned technical proposal, polytetrafluoroethylene (PTFE) as tetrafluoroethene it is aggregated made of high-molecular compound, tool
There are excellent chemical stability, corrosion resistance, leakproofness, high lubrication and non-stickiness and good anti-aging endurance, insoluble in strong
Acid, highly basic and organic solvent.It is configured to be easy the coating of spraying using above-mentioned formula, and is sprayed on polyacrylonitrile fibre
Behind surface, the elasticity of polyacrylonitrile fibre is not influenced, and there is good binding force with polyacrylonitrile fibre.Diethylene glycol (DEG) is as poly- four
The solvent of vinyl fluoride lotion, butyl acetate improves the compatibility of each component, to form the coating of stable homogeneous.
Further preferably, the modified acrylic fibre preparation the following steps are included:
Diethylene glycol (DEG), butyl acetate, coalescing agent, water are added into ptfe emulsion, stirs evenly by S1, and defoaming agent is added,
It stirs evenly, adds wetting agent, stir evenly, obtain coating；
S2, it is with neutral detergent that the surface clean of polyacrylonitrile fibre is clean, then by polyacrylonitrile fibre after being rinsed with clear water
Drying, is cooled to room temperature；
S3, the coating in the surface spraying process one of polyacrylonitrile fibre；
The polyacrylonitrile fibre for being coated with coating drying is made paint solidification by S4, and cooled to room temperature obtains modified polypropene
Nitrile fiber.
By using above-mentioned technical proposal, form corrosion-resistant finishes on polyacrylonitrile fibre surface fine and close and uniform
Film, will not be cracked when deformation occurs for polyacrylonitrile fibre and peels off breakpoint；Corrosion-resistant finishes thickness is small, does not influence
The elasticity of polyacrylonitrile fibre has good binding force with polyacrylonitrile fibre.
Further preferably, the S2 is specifically included: it is with neutral detergent that the surface clean of polyacrylonitrile fibre is clean,
It is to impregnate 5-10min in the sodium hydroxide solution of 1-2% by polyacrylonitrile fibre investment mass concentration, it is fine takes out polyacrylonitrile
Dimension, then dry polyacrylonitrile fibre after being rinsed with clear water, it is cooled to room temperature.
By using above-mentioned technical proposal, when polyacrylonitrile fibre is without naoh treatment, surface free energy is suitable
It is low, it is not easy in conjunction with coating, increases the roughness on its surface after caustic corrosion processing, corrosion-resistant finishes is coated with uniform and and polypropylene
Nitrile fiber is not readily separated.
To achieve the above object two, the present invention provides the following technical scheme that
A kind of preparation method of diamond resin grinding material, comprising the following steps:
Step 1, by diamond, cashew nut oil modified alkyd resin, stainless steel powder, copper fiber, auxiliary abrasive material, melamino-formaldehyde tree
Rouge Moulding powder is uniformly mixed, and obtains mixed powder；
Lower die is put into hollow molding die by step 2, magic tape is laid in the upper surface of lower die, the hair side of magic tape
Upward, it is laid with one layer of phenolic moulding powder in the hair side of magic tape, adds mixed powder；
Step 3, the type that upper mold is put into molding die is intracavitary, is compacted mixed powder；
Molding die is put into hot-press solidifying in hot-press equipment and formed by step 4；
Step 5, takes out molding die, and demoulding obtains diamond resin grinding material.
By using above-mentioned technical proposal, phenolic moulding powder have good mechanical strength and heat resistance, magic tape with mix
After powder is hot-forming, the buckle resistance of abrading block can be enhanced.Grinding material in the present invention can according to need do slabbing or
The block-like abrasive material of person.
Further preferably, the temperature of hot-press solidifying is 150-180 DEG C, time 30-35min in the step 4, pressure
Power is 12-25MPa.
By using above-mentioned technical proposal, under above-mentioned temperature, time and pressure, cashew nut oil modified alkyd resin and trimerization
Cyanamide formaldehyde resin Moulding powder completion of cure, and other components are glutinous together, obtain the abrading block for having good toughness, service life long.
In conclusion compared with prior art, the invention has the following advantages:
(1) present invention cooperates melamine resin Moulding powder by using cashew nut oil modified alkyd resin, as abrading block
Adhesive can not only improve the toughness of abrading block, and crocking resistance is enhanced, and further enhance after addition copper fiber anti-
Buckling strength and wearability；
(2) after by the way that polyacrylonitrile fibre is added in abrading block, the flexural strength, cracking resistance, pressure resistance of abrading block are able to ascend
On the one hand degree further promotes polyacrylonitrile fibre acid corrosion-resistant by spraying corrosion-resistant finishes on polyacrylonitrile fibre surface
Performance, on the other hand promoted polyacrylonitrile fibre alkali corrosion resistance performance, extend abrading block service life；
(3) caustic corrosion processing is carried out to polyacrylonitrile fibre using sodium hydroxide, increases the roughness on its surface, corrosion-resistant finishes
Coating is uniform and is not readily separated with polyacrylonitrile fibre, extends abrading block service life.
Specific embodiment
Below with reference to embodiment, the present invention will be described in detail.
Embodiment 1: a kind of diamond resin grinding material, raw material include following weight percentage components:
Diamond 3%；
Cashew nut oil modified alkyd resin 10%；
Stainless steel powder 5%；
Copper fiber 5%；
Auxiliary abrasive material 10%；
Melamine resin Moulding powder complements to 100%.Cashew nut oil modified alkyd resin and melamine resin mould
Molding powder can pass through commercially available acquisition.
A kind of preparation method of diamond resin grinding material, comprising the following steps:
Step 1, by diamond, cashew nut oil modified alkyd resin, stainless steel powder, copper fiber, auxiliary abrasive material, melamino-formaldehyde tree
Rouge Moulding powder is uniformly mixed, and obtains mixed powder；
Lower die is put into hollow molding die by step 2, magic tape is laid in the upper surface of lower die, the hair side of magic tape
Upward, it is laid with one layer of phenolic moulding powder in the hair side of magic tape, adds mixed powder；
Step 3, the type that upper mold is put into molding die is intracavitary, is compacted mixed powder；
Molding die is put into hot-press equipment hot-press solidifying and formed by step 4, and the temperature of hot-press solidifying is 150 DEG C, and the time is
35min, pressure 12MPa；
Step 5, takes out molding die, and demoulding obtains diamond resin grinding material.
Embodiment 2: a kind of diamond resin grinding material, difference from example 1 is that, raw material includes as follows
The component of weight percent:
Diamond 5%；
Cashew nut oil modified alkyd resin 12%；
Stainless steel powder 8%；
Copper fiber 10%；
Auxiliary abrasive material 8%；
Melamine resin Moulding powder complements to 100%.
Embodiment 3: a kind of diamond resin grinding material, difference from example 1 is that, raw material includes as follows
The component of weight percent:
Diamond 8%；
Cashew nut oil modified alkyd resin 15%；
Stainless steel powder 12%；
Copper fiber 15%；
Auxiliary abrasive material 5%；
Melamine resin Moulding powder complements to 100%.
Embodiment 4: a kind of diamond resin grinding material, difference from example 1 is that, raw material further includes changing
Property polyacrylonitrile fibre, the weight percent of modified acrylic fibre is 1%, and modified acrylic fibre includes polyacrylonitrile
Fiber and the corrosion-resistant finishes for being sprayed at polyacrylonitrile fibre surface, corrosion-resistant finishes with a thickness of 20 μm.
Corrosion-resistant finishes includes following weight percentage components:
Ptfe emulsion 40%；
Diethylene glycol (DEG) 1%；
Butyl acetate 6%；
Defoaming agent 0.1%；
Wetting agent 0.1%；
Coalescing agent 0.2%；
Surplus is water, wherein defoaming agent is Nuo Puke defoaming agent NXZ, and wetting agent is available from Dongguan City China fir Chemical Co., Ltd.
S-417, coalescing agent is available from the coalescing agent TEXNOAL of Xin Di waterproof coating material Co., Ltd, Shenzhen.
The preparation of modified acrylic fibre the following steps are included:
Diethylene glycol (DEG), butyl acetate, coalescing agent, water are added into ptfe emulsion, stirs evenly by S1, and defoaming agent is added,
It stirs evenly, adds wetting agent, stir evenly, obtain coating；
S2, it is with neutral detergent that the surface clean of polyacrylonitrile fibre is clean, then by polyacrylonitrile fibre after being rinsed with clear water
Drying, is cooled to room temperature；
S3, the coating in the surface spraying process one of polyacrylonitrile fibre；
The polyacrylonitrile fibre for being coated with coating drying is made paint solidification by S4, and cooled to room temperature obtains modified polypropene
Nitrile fiber.
Diamond resin is ground the preparation method of material, difference from example 1 is that, step 1 specifically includes:
By diamond, cashew nut oil modified alkyd resin, stainless steel powder, copper fiber, auxiliary abrasive material, melamine resin Moulding powder, change
Property polyacrylonitrile fibre be uniformly mixed, obtain mixed powder.
Embodiment 5: a kind of diamond resin grinding material the difference is that, is modified poly- with embodiment 4 in raw material
The weight percent of Dralon be 2%, corrosion-resistant finishes with a thickness of 25 μm.
Embodiment 6: a kind of diamond resin grinding material the difference is that, is modified poly- with embodiment 4 in raw material
The weight percent of Dralon be 3%, corrosion-resistant finishes with a thickness of 30 μm.
Embodiment 7: a kind of diamond resin grinding material, the difference is that, corrosion-resistant finishes includes with embodiment 4
Following weight percentage components:
Ptfe emulsion 41%；
Diethylene glycol (DEG) 2%；
Butyl acetate 7%；
Defoaming agent 0.1%；
Wetting agent 0.2%；
Coalescing agent 0.3%；
Surplus is water.
Embodiment 8: a kind of diamond resin grinding material, the difference is that, corrosion-resistant finishes includes with embodiment 4
Following weight percentage components:
Ptfe emulsion 43%；
Diethylene glycol (DEG) 3%；
Butyl acetate 8%；
Defoaming agent 0.3%；
Wetting agent 0.3%；
Coalescing agent 0.4%；
Surplus is water.
Embodiment 9: a kind of diamond resin grinding material, the difference is that, S2 is specifically included with embodiment 4: being used
Neutral detergent is clean by the surface clean of polyacrylonitrile fibre, the hydrogen-oxygen for being 1% by polyacrylonitrile fibre investment mass concentration
Change in sodium solution, impregnate 10min, takes out polyacrylonitrile fibre, then dry polyacrylonitrile fibre after being rinsed with clear water, be cooled to
Room temperature.
Embodiment 10: a kind of diamond resin grinding material, the difference is that, S2 is specifically included with embodiment 4: being used
Neutral detergent is clean by the surface clean of polyacrylonitrile fibre, the hydrogen-oxygen for being 2% by polyacrylonitrile fibre investment mass concentration
Change in sodium solution, impregnate 5min, takes out polyacrylonitrile fibre, then dry polyacrylonitrile fibre after being rinsed with clear water, be cooled to
Room temperature.
Embodiment 11: a kind of preparation method of diamond resin grinding material the difference is that, is walked with embodiment 4
The temperature of hot-press solidifying is 165 DEG C, time 32min, pressure 20MPa in rapid four.
Embodiment 12: a kind of preparation method of diamond resin grinding material the difference is that, is walked with embodiment 4
The temperature of hot-press solidifying is 180 DEG C, time 30min, pressure 25MPa in rapid four.
Comparative example 1: the embodiment 1 in the Chinese invention patent of Publication No. CN106956226A prepares composite grinding block.
Comparative example 2: a kind of diamond resin grinding material, the difference is that, modified polyacrylonitrile is fine with embodiment 4
The weight percent of dimension is 0.5%.
Comparative example 3: a kind of diamond resin is ground material, with embodiment 4 the difference is that, the thickness of corrosion-resistant finishes
Degree is 10 μm.
Comparative example 4: a kind of diamond resin is ground material, with embodiment 4 the difference is that, the thickness of corrosion-resistant finishes
Degree is 40 μm.
Performance test sample: using the pull-up abrading block of cloth of raw material and method 400 mesh of preparation in embodiment 1-12, make
For test specimen 1-12, using in comparative example 1-4 raw material and method prepare the pull-up abrading blocks of cloth of 400 mesh, as control sample
1-4, test specimen 1-12 and control sample 1-4 with a thickness of 32mm, length 135mm, width 70mm.
Test method: using test specimen 1-12 and control sample 1-4 polishing granite plane, 6 one group records it most
The low gross area, unit m2；The flexural strength of testing experiment sample 1-12 and control sample 1-4.
Test result: the performance test results of test specimen 1-12 and control sample 1-4 are as shown in table 1.As shown in Table 1.
As shown in Table 1, the flexural strength of test specimen 1-12 is much larger than control sample 1-2, the longevity of test specimen 1-12 polishing granite
Life is much larger than control sample 1, and after modified acrylic fibre is added, service life and flexural strength are further enhanced,
Illustrate that the present invention cooperates melamine resin Moulding powder by using cashew nut oil modified alkyd resin, the bonding as abrading block
Agent can not only improve the toughness of abrading block, and crocking resistance is enhanced, be added copper fiber after enhancing bend resistance intensity and
Wearability is able to ascend the flexural strength, cracking resistance, compression strength of abrading block after polyacrylonitrile fibre is added in abrading block, leads to
It crosses and sprays corrosion-resistant finishes on polyacrylonitrile fibre surface, on the one hand further promote the property of polyacrylonitrile fibre acid corrosion-resistant
Can, the alkali corrosion resistance performance of polyacrylonitrile fibre is on the other hand promoted, abrading block service life is extended.
The performance test results of table 1 test specimen 1-12 and control sample 1-4
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of diamond resin is ground material, which is characterized in that its raw material includes following weight percentage components:
Diamond 3-8%；
Auxiliary abrasive material 5-10%；
Cashew nut oil modified alkyd resin 10-15%；
Stainless steel powder 5-12%；
Copper fiber 5-15%；
Melamine resin Moulding powder complements to 100%.
2. a kind of diamond resin according to claim 1 is ground material, which is characterized in that its raw material further includes modified poly-
Dralon, the weight percent of modified acrylic fibre are 1-3%, and modified acrylic fibre includes polyacrylonitrile fibre
Tie up and be sprayed at the corrosion-resistant finishes on polyacrylonitrile fibre surface.
3. a kind of diamond resin according to claim 2 is ground material, which is characterized in that the thickness of the corrosion-resistant finishes
Degree is 20-30 μm.
4. a kind of diamond resin according to claim 2 is ground material, which is characterized in that the corrosion-resistant finishes includes
Following weight percentage components:
Ptfe emulsion 40-43%；
Diethylene glycol (DEG) 1-3%；
Butyl acetate 6-8%；
Defoaming agent 0.1-0.3%；
Wetting agent 0.1-0.3%；
Coalescing agent 0.2-0.4%；
Surplus is water.
5. a kind of diamond resin according to claim 4 is ground material, which is characterized in that the modified polyacrylonitrile is fine
The preparation of dimension the following steps are included:
Diethylene glycol (DEG), butyl acetate, coalescing agent, water are added into ptfe emulsion, stirs evenly by S1, and defoaming agent is added,
It stirs evenly, adds wetting agent, stir evenly, obtain coating；
S2, it is with neutral detergent that the surface clean of polyacrylonitrile fibre is clean, then by polyacrylonitrile fibre after being rinsed with clear water
Drying, is cooled to room temperature；
S3, the coating in the surface spraying process one of polyacrylonitrile fibre；
The polyacrylonitrile fibre for being coated with coating drying is made paint solidification by S4, and cooled to room temperature obtains modified polypropene
Nitrile fiber.
6. a kind of diamond resin according to claim 5 is ground material, which is characterized in that the S2 is specifically included: using
Neutral detergent is clean by the surface clean of polyacrylonitrile fibre, the hydrogen-oxygen for being 1-2% by polyacrylonitrile fibre investment mass concentration
Change in sodium solution, impregnate 5-10min, takes out polyacrylonitrile fibre, then dry polyacrylonitrile fibre after being rinsed with clear water, it is cooling
To room temperature.
7. a kind of preparation method of diamond resin grinding material, which comprises the following steps:
Step 1, by diamond, cashew nut oil modified alkyd resin, stainless steel powder, copper fiber, auxiliary abrasive material, melamino-formaldehyde tree
Rouge Moulding powder is uniformly mixed, and obtains mixed powder；
Lower die is put into hollow molding die by step 2, magic tape is laid in the upper surface of lower die, the hair side of magic tape
Upward, it is laid with one layer of phenolic moulding powder in the hair side of magic tape, adds mixed powder；
Step 3, the type that upper mold is put into molding die is intracavitary, is compacted mixed powder；
Molding die is put into hot-press solidifying in hot-press equipment and formed by step 4；
Step 5, takes out molding die, and demoulding obtains diamond resin grinding material.
8. a kind of preparation method of diamond resin grinding material according to claim 7, which is characterized in that the step
The temperature of hot-press solidifying is 150-180 DEG C, time 30-35min, pressure 12-25MPa in four.
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| CN114410277A (en) * | 2022-01-18 | 2022-04-29 | 厦门家和兴钻石工具有限公司 | Polishing abrasive and production preparation process thereof |
| CN114851095A (en) * | 2021-04-15 | 2022-08-05 | 泉州众志金刚石工具有限公司 | Matrix powder for metal grinding wheel, metal grinding wheel material and metal grinding wheel |
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| CN109369105A (en) * | 2018-11-23 | 2019-02-22 | 厦门捷航工程检测技术有限公司 | A kind of concrete and preparation method thereof containing modified fibre |
| CN109369105B (en) * | 2018-11-23 | 2021-08-24 | 厦门捷航工程检测技术有限公司 | Concrete containing modified fibers and preparation method thereof |
| CN114851095A (en) * | 2021-04-15 | 2022-08-05 | 泉州众志金刚石工具有限公司 | Matrix powder for metal grinding wheel, metal grinding wheel material and metal grinding wheel |
| CN114410277A (en) * | 2022-01-18 | 2022-04-29 | 厦门家和兴钻石工具有限公司 | Polishing abrasive and production preparation process thereof |
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