CN108908145A - A kind of polishing abrasive belt and preparation method thereof - Google Patents
A kind of polishing abrasive belt and preparation method thereof Download PDFInfo
- Publication number
- CN108908145A CN108908145A CN201810707226.3A CN201810707226A CN108908145A CN 108908145 A CN108908145 A CN 108908145A CN 201810707226 A CN201810707226 A CN 201810707226A CN 108908145 A CN108908145 A CN 108908145A
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- epoxy
- weight
- abrasive belt
- polishing abrasive
- substrate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
- B24D11/001—Manufacture of flexible abrasive materials
Abstract
The invention discloses a kind of polishing abrasive belt and preparation method thereof, polishing abrasive belt includes banding substrate, the modified epoxy that is poured in substrate, and the black corundum sand material being evenly distributed in modified epoxy；Wherein, the weight ratio of black corundum sand material and modified epoxy is 3-7:1, the particle size range of black corundum sand material is P40-P360；Substrate is the industrial scouring pad of nylon material；Modified epoxy is prepared by following raw materials according：Epoxy resin, curing agent, modifying agent and viscosity modifier, curing agent are polyamide, and modifying agent is polybutadiene.Preparation method includes the steps that epoxy resin modification, blending, grouting, solidification.Polishing abrasive belt sand content of the present invention improves, and abrasive grain is distributed in entire substrate, rather than only on surface, does not need to apply tacky sand repeatedly, long service life, at low cost, cost performance is high.
Description
Technical field
The present invention relates to polishing abrasive tool technical fields, and in particular to a kind of polishing abrasive belt and preparation method thereof.
Background technique
Black corundum is to increase halotrichite soil or hammer scale with alumine, crosses high temperature fusion smelting in electric arc furnaces back warp
Then it cools down, one kind is prepared by with Al2O3It is the grey black crystalline solid of main mine phase with hercynite.Its main chemical compositions
For aluminum oxide（Al2O3）, di-iron trioxide（Fe2O3）, separately there is part of silica（SiO2）, titanium dioxide（TiO2）And its
Its composition.Black corundum production technology determines production power consumption lower than Brown Alundum, and it is the mill of environmentally friendly high performance-price ratio that discharge is few
Expect product.Black corundum abrasive material is traditionally mainly used for the surface treatment such as sandblasting, grinding, polishing of various workpiece, especially to not
Steel workpiece polishing of becoming rusty has unique advantage, and the stainless steel work-piece surface color uniformity polished through black corundum is shown not
The gloss for steel essence of becoming rusty, does not have the trace of burn, the product brightness, color after polishing are fabulous.
The polishing of existing stainless steel product generally uses cotton piece buff as substrate, and polishing is made in cotton piece buff outer rim gluing, scab
Wheel, abrasive grain are sticked to cotton piece buff outer fringe surface, and when in use, abrasive material is prone to wear, falls off, and at this moment grinding wheel just needs to apply again
Glue, scab can just continue to use, and the working efficiency that this results in grinding wheel is low, stability is low, be easy to cause sanding and polishing uneven,
Gluing is at high cost repeatedly, and the usually irritant smell of the glue as bonding agent, is unfavorable for the health of staff.Also have
Some industries are to carry out electrostatic sand-planting, sand content on the surface of substrate using the abrasive band that abrasive band is polished, polished, but used
Only one layer of surface sand, bruting process sand grains easily fall off, and the grains of sand on surface layer fall off after abrasive band just scrap, cannot repeat
Sand is planted, abrasive band durability is very low, and service life is very short.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of sand content height, performance more stable polishing abrasive belts and its preparation
Method.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of polishing abrasive belt is designed, including substrate, the modified epoxy being poured in the substrate, and is evenly distributed on institute
State the black corundum sand material in modified epoxy；Wherein, the weight ratio of black corundum sand material and modified epoxy is 3-7:1, institute
The particle size range for stating black corundum sand material is P40-P360；The substrate is the industrial scouring pad of nylon material；
The modified epoxy is prepared by following raw materials according：Epoxy resin, curing agent, modifying agent and viscosity modifier, institute
Stating curing agent is polyamide, and additive amount is the 20-50% of weight epoxy, and the modifying agent is polybutadiene, and additive amount is ring
The 5-10% of oxygen weight resin.
In the above-mentioned technical solutions, black corundum sand material is evenly mixed in modified epoxy, then by mixed sand material
It is filled into substrate, is evenly distributed on black corundum sand material inside entire substrate, rather than be bonded in substrate surface, without picture
Existing buffing wheel the same gluing, scab repeatedly in use, save a large amount of operational sequence, ensure that abrasive band work
Make the stability of performance, improve sanding and polishing efficiency, the uniformity of polishing is more preferable.Substrate is clean using the industry hundred of nylon material
Cloth, porosity is high, can be improved the sand content of unit area, and during sanding and polishing, the fiber meeting of substrate can be with sand
Material together wear, consume, after outer layer sand grinding abrasion the sand material of inner layer can expose, will not because of surface sand grinding abrasion, fall off
And influence grinding effect.Polybutadiene-modified agent is added in epoxy resin, can be improved the flexibility of resin, is convenient for resin sand
The mixture of material is filled into substrate.The elasticity, toughness and bonding of reinforced epoxy are capable of in the addition of polyamide curing agent
Property, guarantee that polishing abrasive belt has required elasticity and intensity, improves the durability in abrasive band.
Preferably, the viscosity modifier is acetone, methyl ethyl ketone, cyclohexanone or n-butanol, and additive amount is epoxy resin
The 6-15% of weight.
Preferably, toner is also added in the modified epoxy, the toner is three iron oxide red of titanium dioxide, four
Fe 3 O is black or ferrous oxide is yellow, and additive amount is the 1-3% of weight epoxy.Toner can be added as needed, to change
The color of modified epoxy.
Preferably, the weight of the modified epoxy accounts for the 10-25% of abrasive band total weight.
Preferably, the weight of the black corundum sand material accounts for 70% or more of abrasive band total weight.Sand content improves, and can make to throw
The durability in light abrasive band increases, and polishing is more uniform, and effect is more stable.
Preferably, the epoxy resin is bisphenol A epoxide resin.Bisphenol A type epoxy resin intensity with higher and viscous
Connecing property, the buffing wheel toughness and heat resistance of preparation are more preferable.
Preferably, the substrate with a thickness of 1-3cm.
The invention further relates to a kind of preparation methods of above-mentioned polishing abrasive belt, include the following steps：
（1）Epoxy resin modification：Curing agent, modifying agent and viscosity modifier are added in the epoxy, is uniformly mixed,
In, the curing agent is polyamide, and additive amount is the 20-50% of weight epoxy, and the modifying agent is polybutadiene, addition
Amount is the 5-10% of weight epoxy；The viscosity modifier is acetone, methyl ethyl ketone, cyclohexanone or n-butanol, and additive amount is
The 6-15% of weight epoxy；
（2）It is blended：To step（1）Black corundum sand material is added in resulting modified epoxy to be uniformly mixed, is packed into grouting container
In it is stand-by, wherein the weight ratio of black corundum sand material and modified epoxy is 3-7:1, the particle size range of black corundum sand material used
It is P40-P360；
（3）Grouting：Filling step（2）Flat burner is installed, the partially flat nozzle of use is in base below the container of resulting mixed material
Material two rolls substrate with beaming roller in face of blowing, and during grouting, the material in container remains stirring shape
State；The substrate is the industrial scouring pad of nylon material；
（4）Solidification：By step（3）The abrasive band that grouting is completed, which is put into drying box, to be solidified, first under conditions of 50-70 DEG C
Then drying box is warming up to 150-170 DEG C, stops heating after 25-30 hour of hot setting by 2-3 hour of primary solidification；
When the temperature inside the box to be dried is down to 50 DEG C, abrasive band is removed into drying box, is cooled to room temperature to get polishing abrasive belt is arrived.
In step（2）In, it is also added with toner, the toner is three iron oxide red of titanium dioxide, ferroferric oxide black or oxygen
Change ferrous Huang, additive amount is the 1-3% of weight epoxy.
Preferably, the epoxy resin is bisphenol A epoxide resin.
In the preparation process of polishing abrasive belt, selection is that 1-3cm is thick, big volume substrate of 1m-2m wide carries out mortar injection
And solidification, what is prepared is also the abrasive band of big volume, and the cyclic annular sand of head and the tail connection is made in the size for cutting out needs when in use
Band.
The beneficial effects of the present invention are：
Polishing abrasive belt of the present invention uses modified epoxy mixed black emergy material, and mixture is filled into substrate, sand material is made
It is evenly distributed in entire substrate, when in use, working performance is more stable, and polishing is more uniform, polishing efficiency is higher.With it is existing
There is buffing wheel in technology to compare by the way of cotton piece buff outer rim gluing, scab, the process that gluing, scab can be saved repeatedly,
Be conducive to the health saved labour, protect employee；Compared with existing polishing abrasive band, sand content is higher, wearability and
Service life greatly increases.Substrate uses the scouring pad of nylon material, and porosity is high, and the sand amount that can be carried is big, makes finished sand
The durability of band greatly improves, while the fiber of substrate and cured resin can wear together with sand material, consume, surface layer sand material
The sand material that inner layer can be exposed while falling off avoids polishing unevenness caused by surface layer sand material falls off, generates the problems such as scratch.This
Invention polishing abrasive belt uses black corundum sand material, and cost is lower, and stability is good, can preferably guarantee the quality for polishing product
Stability.The workpiece polished using polishing abrasive belt of the present invention, surface color is more uniform consistent, does not have the trace of burn
Mark, the product brightness, color after polishing are more preferable.
Specific embodiment
Illustrate a specific embodiment of the invention below with reference to embodiment, but following embodiment is used only to be described in detail
The present invention does not limit the scope of the invention in any way.Related equipment component is as without especially in the examples below
Illustrate, is conventional equipment element；The related raw material of industry is commercially available regular industrial raw material unless otherwise instructed.
Embodiment 1：A kind of polishing abrasive belt including substrate, the modified epoxy being poured in substrate, and is uniformly distributed
Black corundum sand material in modified epoxy；Wherein, the weight ratio of black corundum sand material and modified epoxy is 5:1, it is black rigid
The particle size range of beautiful sand material is P40-P360；Substrate is the industrial scouring pad of nylon material.
Wherein, modified epoxy is prepared by following raw materials according：Epoxy resin, curing agent, modifying agent and viscosity-adjusting agent
Agent, curing agent are polyamide, and additive amount is the 30% of weight epoxy, and modifying agent is polybutadiene, and additive amount is epoxy resin
The 8% of weight；Viscosity modifier is cyclohexanone, and additive amount is the 10% of weight epoxy；It is also added in modified epoxy
There is toner, toner is that ferrous oxide is yellow, and additive amount is the 2% of weight epoxy.Epoxy resin is bisphenol A epoxide resin；
Substrate with a thickness of 2cm.
In finished sand band, the weight of modified epoxy accounts for the 10-25% of abrasive band total weight.The weight of black corundum sand material
Account for 70% or more of abrasive band total weight.
Embodiment 2：A kind of polishing abrasive belt, difference from example 1 is that, black corundum sand material and modified epoxy
Weight ratio be 4:1, the additive amount of curing agent is the 20% of weight epoxy, and the additive amount of modifying agent is weight epoxy
5%；Viscosity modifier is acetone, and additive amount is the 6% of weight epoxy；Also added with toning in modified epoxy
Agent, toner are three iron oxide red of titanium dioxide, and additive amount is the 1% of weight epoxy.Substrate with a thickness of 1cm.
Embodiment 3：A kind of polishing abrasive belt, difference from example 1 is that, black corundum sand material and modified epoxy
Weight ratio be 7:1, the additive amount of curing agent is the 45% of weight epoxy, and the additive amount of modifying agent is weight epoxy
8%；Viscosity modifier is n-butanol, and additive amount is the 13% of weight epoxy；Also added with tune in modified epoxy
Toner, toner are ferroferric oxide black, and additive amount is the 2.5% of weight epoxy.Substrate with a thickness of 3cm.
Embodiment 4：A kind of polishing abrasive belt, difference from example 1 is that, black corundum sand material and modified epoxy
Weight ratio be 6:1, the additive amount of curing agent is the 35% of weight epoxy, and the additive amount of modifying agent is weight epoxy
7%；Viscosity modifier is methyl ethyl ketone, and additive amount is the 8% of weight epoxy；Also added with toning in modified epoxy
Agent, toner are three iron oxide red of titanium dioxide, and additive amount is the 1.5% of weight epoxy.Substrate with a thickness of 2.5cm.
Embodiment 5：A kind of preparation method of polishing abrasive belt, includes the following steps：
（1）Epoxy resin modification：Curing agent, modifying agent and viscosity modifier are added in the epoxy, is uniformly mixed,
In, curing agent is polyamide, and additive amount is the 20-50% of weight epoxy, and modifying agent is polybutadiene, and additive amount is epoxy
The 5-10% of weight resin；Viscosity modifier is acetone, methyl ethyl ketone, cyclohexanone or n-butanol, and additive amount is weight epoxy
6-15%；Epoxy resin is bisphenol A epoxide resin.
（2）It is blended：To step（1）Black corundum sand material is added in resulting modified epoxy to be uniformly mixed, is packed into grouting
It is stand-by in container, wherein the weight ratio of black corundum sand material and modified epoxy is 3-7:1, the granularity of black corundum sand material used
Range is P40-P360；It is wherein also added with toner, toner is three iron oxide red of titanium dioxide, ferroferric oxide black or ferrous oxide
Huang, additive amount are the 1-3% of weight epoxy.
（3）Grouting：Filling step（2）Flat burner, the partially flat nozzle of use are installed below the container of resulting mixed material
In substrate two in face of blowing, and substrate is rolled with beaming roller, during grouting, the material in container remains stirring
State；Substrate is the industrial scouring pad of nylon material.
（4）Solidification：By step（3）The abrasive band that grouting is completed, which is put into drying box, to be solidified, first in 50-70 DEG C of item
Then drying box is warming up to 150-170 DEG C, stops adding after 25-30 hour of hot setting by 2-3 hour of primary solidification under part
Heat；When the temperature inside the box to be dried is down to 50 DEG C, abrasive band is removed into drying box, is cooled to room temperature to get the polishing abrasive belt is arrived.
The present invention is described in detail above in conjunction with embodiment, but person of ordinary skill in the field can manage
Solution, without departing from the purpose of the present invention, can also change each design parameter in above-described embodiment, be formed
Multiple specific embodiments are common variation range of the invention, are no longer described in detail one by one herein.
Claims (10)
1. a kind of polishing abrasive belt, which is characterized in that including substrate, the modified epoxy being poured in the substrate, Yi Jijun
The even black corundum sand material being distributed in the modified epoxy；Wherein, the weight ratio of black corundum sand material and modified epoxy
For 3-7:1, the particle size range of the black corundum sand material is P40-P360；The substrate is the industrial scouring pad of nylon material；
The modified epoxy is prepared by following raw materials according：Epoxy resin, curing agent, modifying agent and viscosity modifier, institute
Stating curing agent is polyamide, and additive amount is the 20-50% of weight epoxy, and the modifying agent is polybutadiene, and additive amount is ring
The 5-10% of oxygen weight resin.
2. polishing abrasive belt according to claim 1, which is characterized in that the viscosity modifier is acetone, methyl ethyl ketone, hexamethylene
Ketone or n-butanol, additive amount are the 6-15% of weight epoxy.
3. polishing abrasive belt according to claim 1, which is characterized in that also added with toning in the modified epoxy
Agent, the toner are that three iron oxide red of titanium dioxide, ferroferric oxide black or ferrous oxide are yellow, and additive amount is the 1- of weight epoxy
3%。
4. polishing abrasive belt according to claim 1, which is characterized in that the weight of the modified epoxy accounts for abrasive band gross weight
The 10-25% of amount.
5. polishing abrasive belt according to claim 1, which is characterized in that the weight of the black corundum sand material accounts for abrasive band total weight
70% or more.
6. polishing abrasive belt according to claim 1, which is characterized in that the epoxy resin is bisphenol A epoxide resin.
7. polishing abrasive belt according to claim 1, which is characterized in that the substrate with a thickness of 1-3cm.
8. a kind of preparation method of polishing abrasive belt described in claim 1, which is characterized in that include the following steps：
（1）Epoxy resin modification：Curing agent, modifying agent and viscosity modifier are added in the epoxy, is uniformly mixed,
In, the curing agent is polyamide, and additive amount is the 20-50% of weight epoxy, and the modifying agent is polybutadiene, addition
Amount is the 5-10% of weight epoxy；The viscosity modifier is acetone, methyl ethyl ketone, cyclohexanone or n-butanol, and additive amount is
The 6-15% of weight epoxy；
（2）It is blended：To step（1）Black corundum sand material is added in resulting modified epoxy to be uniformly mixed, is packed into grouting container
In it is stand-by, wherein the weight ratio of black corundum sand material and modified epoxy is 3-7:1, the particle size range of black corundum sand material used
It is P40-P360；
（3）Grouting：Filling step（2）Flat burner is installed, the partially flat nozzle of use is in base below the container of resulting mixed material
Material two rolls substrate with beaming roller in face of blowing, and during grouting, the material in container remains stirring shape
State；The substrate is the industrial scouring pad of nylon material；
（4）Solidification：By step（3）The abrasive band that grouting is completed, which is put into drying box, to be solidified, first under conditions of 50-70 DEG C
Then drying box is warming up to 150-170 DEG C, stops heating after 25-30 hour of hot setting by 2-3 hour of primary solidification；
When the temperature inside the box to be dried is down to 50 DEG C, abrasive band is removed into drying box, is cooled to room temperature to get polishing abrasive belt is arrived.
9. the preparation method of polishing abrasive belt according to claim 8, which is characterized in that in step（2）In, also added with tune
Toner, the toner are that three iron oxide red of titanium dioxide, ferroferric oxide black or ferrous oxide are yellow, and additive amount is weight epoxy
1-3%。
10. the preparation method of polishing abrasive belt according to claim 8, which is characterized in that the epoxy resin is bisphenol-A ring
Oxygen resin.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810707226.3A CN108908145B (en) | 2018-07-02 | 2018-07-02 | Polishing abrasive belt and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810707226.3A CN108908145B (en) | 2018-07-02 | 2018-07-02 | Polishing abrasive belt and preparation method thereof |
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| CN108908145B CN108908145B (en) | 2020-09-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110405648A (en) * | 2019-06-12 | 2019-11-05 | 欧志飞 | A kind of preparation method in high temperature resistance and high strength abrasive band |
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| Publication number | Publication date |
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| CN108908145B (en) | 2020-09-11 |
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