CN105500225B - A kind of high combination property multiple grinding piece and its manufacture method - Google Patents

A kind of high combination property multiple grinding piece and its manufacture method Download PDF

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Publication number
CN105500225B
CN105500225B CN201510985326.9A CN201510985326A CN105500225B CN 105500225 B CN105500225 B CN 105500225B CN 201510985326 A CN201510985326 A CN 201510985326A CN 105500225 B CN105500225 B CN 105500225B
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China
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parts
base
abrasive grains
adhesive
component
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CN201510985326.9A
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Chinese (zh)
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CN105500225A (en
Inventor
王荣生
王鹏
王茂华
关广利
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江苏锋芒复合材料科技集团有限公司
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING, OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/34Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
    • B24D3/342Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties incorporated in the bonding agent
    • B24D3/344Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties incorporated in the bonding agent the bonding agent being organic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING, OR SHARPENING
    • B24D18/00Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/0072Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using adhesives for bonding abrasive particles or grinding elements to a support, e.g. by gluing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING, OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/20Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially organic
    • B24D3/28Resins or natural or synthetic macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIAL AS ADHESIVES
    • C09J163/00Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

The invention discloses a kind of high combination property multiple grinding piece, including base material, abrasive grains and adhesive, substrate surface is divided into some regions, the abrasive grains size of the same area attachment is identical, the abrasive grains of different zones attachment are of different sizes, the size for the abrasive grains being attached on base material regional gradually increases along substrate center to material edge, abrasive grains are multiple grinding particle, it is combined by nano ceric oxide and silica two kinds of particles, adhesive is made up of first and second liang of components;The present invention, which also designs a kind of manufacture method of high combination property multiple grinding piece, includes below scheme:Upper glue process, plant sand process, solidify afterwards process, flexure band water conservancy project sequence, laser cutting process, the anti-deformation process process of base material and storage process;The manufacture method of the present invention is simple and easy, and manufacturing cost is cheap, and the multiple grinding piece produced has ageing-resistant, endurance, high temperature resistant, wear-resistant, service life length, polishing efficiency height.

Description

A kind of high combination property multiple grinding piece and its manufacture method

Technical field

The present invention relates to a kind of abrasive sheet and its manufacture method, and in particular to a kind of high combination property multiple grinding piece and its Manufacture method, belong to coating die field.

Background technology

Abrasive sheet refers to utilize ultraprecise coating technique, by selected micron or nanoscale abrasive micropowder(Diamond, carbonization Silicon, aluminum oxide, silica, cerium oxide etc.)With high performance adhesive it is dispersed after, coated on substrate surface, then through too high Precision cuts technique and is process;Abrasive sheet is very extensive with field, such as optical communication field, micromachine field, hard disk neck Domain etc..Such as the vulcan fibre emery disc that uses on the market, vulcan fibre emery disc are also known as vulcanized paper sanding discs, at a high speed grinding, abrasive disk at present, it be with Vulcan fibre is base material, using synthetic resin as a kind of plate-like coated abrasive tool made of binding agent.Its tensile strength is big, wearability extra-heavy, Can be arranged on electronic or pneumatic electric angle grinder metal and the various type faces of nonmetallic materials are derusted, deburring, coating removal, Polishing welding seams, it is the ideal tools for being ground, polishing, polishing in Furniture manufacture and repair of machine work, is widely used in timber, family Tool, shipbuilding, metallurgy, automobile, machinery, instrument, bridge and building trade, but existing abrasive sheet wears no resistance, service life The drawback such as short is more and more obvious.

The content of the invention

The technical problems to be solved by the invention are the shortcomings that overcoming prior art, there is provided a kind of high combination property is compound Abrasive sheet and its manufacture method, the manufacture method is simple and easy, and manufacturing cost is cheap, and the multiple grinding piece produced has resistance to old Change, endurance, high temperature resistant, wear-resistant, service life length, polishing efficiency are high.

In order to solve the above technical problems, the present invention provides a kind of high combination property multiple grinding piece, including base material, grinding Particle and adhesive, abrasive grains are attached on base material by adhesive, and substrate surface is circle, if substrate surface is divided into Dry region, some regions are respectively the border circular areas and several concentric annular regions using the center of substrate surface as the center of circle, same The abrasive grains size of region attachment is identical, and the abrasive grains of different zones attachment are of different sizes, are attached to base material regional On the sizes of abrasive grains gradually increase along substrate center to material edge, wherein:

Abrasive grains are multiple grinding particle, are combined by nano ceric oxide and silica two kinds of particles, compound The specific preparation method of abrasive grains is as follows:

The preparation of monodisperse silica particle

80ml ammoniacal liquor is measured to be placed in 500ml beaker, then sequentially added into beaker 140ml absolute ethyl alcohol and 70ml deionized water, 50 DEG C of water bath with thermostatic control China insulation 10-15min are placed in after stirring, and under the conditions of magnetic agitation 50ml tetraethyl orthosilicate is added dropwise, time for adding is controlled in 8-10min, continues to stir 30-50min, ageing after dripping Sediment is centrifuged after 15-18h, and by product distilled water flushing 2-4 times, finally washes of absolute alcohol with once, It is placed in 70-80 DEG C of air dry oven and dries after cleaning, obtained presoma is ground, 50- is calcined at 500 DEG C 60min, obtain monodisperse nano silicon dioxide particle;

The preparation of multiple grinding particle

Six water cerous nitrates are dissolved in normal propyl alcohol and the mixed solution of deionized water, acetylacetone,2,4-pentanedione is then added, matches somebody with somebody Cerium colloidal sol is put, 15-18h is stirred at room temperature, obtains the glassy yellow colloidal sol of transparent clarification, then by stepObtained single dispersing two Silicon oxide particle is immersed in 20-30min in the cerium colloidal sol of acquisition under conditions of ultrasound plus mechanical agitation, then by Surface coating The nanometer silicon dioxide particle for having cerium colloidal sol centrifuges, and is placed in 70-80 DEG C of air dry oven and dries, through 500 DEG C of calcination 40- 50min, you can obtain multiple grinding particle;

Adhesive is made up of first and second liang of components, and first component and component B count first component in mass ratio:Component B=2:1 ratio Example mixing, wherein:

First component includes following component according to the mass fraction:

Modifying epoxy resin by organosilicon:40-60 parts, polyurethane elastomer:15-25 parts, chain extender:1-3 parts, filler:5-8 Part, plasticizer:3-5 parts, catalyst:2-4 parts, foaming agent:6-8 parts, fire retardant:1-3 parts, hydrolysis-resisting agent:2-4 parts, it is compound dilute Soil:0.8-1.4 parts, the stearic acid salt of pentaerythrite four:1-3 parts, silane coupler:10-18 parts, curing agent:20-30 parts, dilution Agent:5-10 parts;

Chain extender is diamine or dihydric alcohol;Filler is carbon black;Plasticizer is repefral;Catalyst is benzyl TEBA;Foaming agent is methyl-silicone oil;Fire retardant is phosphotriester;Hydrolysis-resisting agent is poly- carbonization diamines;Curing agent For modified polyamide class curing agent;Diluent is methanol or ethyl acetate;Compound rare-earth includes following component by weight percentage: La:12-16%, Y:15-17%, Sc:5-8%, Gd:8-10%, Sm:9-15%, Pr:13-16%, remaining is lanthanide series, and the above is each Component sum is 100%;

Component B includes following component according to the mass fraction:

Water soluble phenol resin:46-70 parts, precipitated calcium carbonate:3-6 parts, organobentonite:5-11 parts, molybdenum disulfide:1- 3 parts, carboxyl LNBR:0.9-1.2 parts.

The technical scheme that further limits of the present invention as:

In foregoing high combination property multiple grinding piece, when preparing monodisperse silica particle, six water cerous nitrates, just Propyl alcohol and deionized water count six water cerous nitrates in mass ratio:Normal propyl alcohol:Deionized water=1:2:2 ratio mixing.

In foregoing high combination property multiple grinding piece, the size of abrasive grains is 0.1 μm -20 μm.

In foregoing high combination property multiple grinding piece, the thickness of base material is 50-90 μm, and base material is polyester film, gathered Amide film, polypropylene film or polyethylene film.

The present invention also designs a kind of manufacture method of high combination property multiple grinding piece, the manufacture method of the multiple grinding piece Including below scheme:Upper glue process, plant sand process, solidify afterwards process, flexure band water conservancy project sequence, laser cutting process, the anti-shape of base material Become treatment process and storage process, concrete operations are as follows:

(i) adhesive is first prepared, then the adhesive coating on the base material chosen, adhesive is using roller coat, blade coating or flat At least one of painting mode is coated on base material;

The specific preparation method of adhesive is as follows:

A. the preparation of first component

Modifying epoxy resin by organosilicon, polyurethane elastomer, filler are delivered in dispersion cylinder, turn on agitator is slowly stirred Mix, mixing speed is that 300-350 turns/min, after stirring 16-19min, then adds plasticizer, chain extender, catalyst, foaming Agent, fire retardant, continue to stir 20-30min, and mixing speed is that 150-200 turns/min, then to it is scattered just in add compound rare-earth, The stearic acid salt of pentaerythrite four, silane coupler, hydrolysis-resisting agent, continue stir 10-19min, mixing speed be 340-390 turn/ Min obtains mixture;

Curing agent is dissolved with diluent, then the curing agent after dissolving is mixed with mixture, solidified at room temperature It is stand-by to first component;

B. the preparation of component B

By water soluble phenol resin, precipitated calcium carbonate, organobentonite, molybdenum disulfide, carboxyl LNBR in the lump Deliver in dispersion cylinder and be stirred mixing, mixing speed is that 200-300 turns/min, and after stirring 20-30 minutes, discharging obtains second group Part is stand-by;

C. the synthesis of adhesive

By the first and second components first in mass ratio:Second=2:1 ratio is uniformly mixed, mixing speed be 100-200 turn/ Min, stirring 20-30min can obtain the adhesive;

Abrasive grains are spread according to the region divided on base material, on adhesive, the same area grinding Grain size is identical;

Abrasive grains are contained in hand sieve, spin vibration sieve, make weight of the abrasive grains by itself, equably embedded in level In the adhesive for the base material put, regional is sieved using different purpose hands;

The semi-finished product that abrasive grains are embedded with step 2 are subjected to solidify afterwards process, flexure band water conservancy project sequence, laser successively The anti-deformation process process of cutting action, base material and storage process and then obtained abrasive sheet finished product;

In solidify afterwards process:Adhesive is solidifying 20-40min at a temperature of 60-80 DEG C;

In flexure band water conservancy project sequence:It is combined using the radial direction flexure in mechanical flexure and two 45 ° of flexures, wherein water amount ≤ 20g/m2, crimpness≤12mm after mechanical flexure.

The technical scheme that further limits of the present invention as:

In the manufacture method of foregoing high combination property multiple grinding piece, step(Three)Adopted in the middle anti-deformation process process of base material Base material is sprayed with anti-deformation resin or coating processing, anti-deformation resin are waterborne polyurethane resin, epoxy resin, phenolic aldehyde Resin or acrylic resin.

The beneficial effects of the invention are as follows:

The composition of polishing slurries(Abrasive grains, auxiliary agent etc.)It is one of key factor for influenceing polished surface quality, at present, The abrasive grains of use are generally traditional inorganic abrasive particles such as silica, ceria or alundum (Al2O3), and these are single Abrasive grains often cannot get gratifying polishing effect, e.g., silica is easily configured to stable with fine dispersion Property slurry, but its polishing plastic is relatively low, generally requires to add oxidant etc. in polishing material in actual applications and is thrown to improve Optical speed, so as to cause the chemical analysis of polishing material complicated, alundum (Al2O3) abrasive grains have higher hardness, although polishing Speed is higher, but easily causes surface tear so as to influence yield rate, and ceria has excellent wear intensity, but stably dispersing Property it is poor, the present invention in abrasive grains be multiple grinding particle, overcome the deficiency of single mill particle, combine both Advantage, this multiple grinding particle have good polishing effect to the chip after polishing, surfacing, smooth.

The present invention is carried out when planting sand using hand with sieve, and regional ensures each region using different purpose hand sieves Abrasive grains are of different sizes, ensure the raising of polishing efficiency, with reaching according to the position for needing to select grinding slice lapping is polished It is required that.

Modifying epoxy resin by organosilicon is used in the first component of the present invention, modifying epoxy resin by organosilicon has organosilicon material concurrently The excellent properties of material and epoxy resin, the internal stress and can increase that epoxy resin can be reduced with modifying epoxy resin by organosilicon are resistance to The performances such as high temperatures, toughness;Containing compound rare-earth, the incorporation of compound rare-earth can extend the corrosive mediums such as water, ion as filler The path of base material is diffused into, substrate surface is generated one layer of dense conversion film, base material can be made to completely cut off with corrosive medium Open, while the adhesion with base material can be strengthened, so as to improve integral protection performance;Fire retardant is added, due to aluminium hydroxide Flame retardant effect is poor, and the present invention uses phosphotriester, is advantageous to improve the heat-resisting quantity of abrasive sheet;Silane coupler can strengthen polymerization Interface binding power between thing and filler, a part of group can be with filler or the chemical group on reinforcing material surface in coupling agent molecule Reaction, generates firm chemical bond, another part group or chain link then have stronger compatibility with polymer molecule, also improve material The surface nature of material, improve physical and mechanical property, ageing-resistant performance;

Water soluble phenol resin is employed in component B, the resin has certain pliability, high temperature resistant, water-fast, bonding Intensity is high, improves the performance of adhesive.

Sharp quick, the service life length of abrasive sheet in the present invention, polishing high heat resistance, splendid moisture resistance, are being manufactured In can effectively prevent from deforming, product tensile strength is big, and adhesive property is good, and grinding performance is strong.

Embodiment

Embodiment 1

A kind of high combination property multiple grinding piece that the present embodiment provides, including base material, abrasive grains and adhesive, grinding Particle is attached on base material by adhesive, and substrate surface is circle, and the thickness of base material is 50 μm, and base material is polyester film, Substrate surface is divided into some regions, and some regions are respectively using the center of substrate surface as the border circular areas in the center of circle and several Concentric annular regions, the abrasive grains size of the same area attachment is identical, and the abrasive grains of different zones attachment are of different sizes, attached The size for the abrasive grains on base material regional gradually increases along substrate center to material edge, wherein:

Abrasive grains are multiple grinding particle, and the size of abrasive grains is 0.1 μm -20 μm, by nano ceric oxide and two Silica two kinds of particles is combined, and the specific preparation method of multiple grinding particle is as follows:

The preparation of monodisperse silica particle

80ml ammoniacal liquor is measured to be placed in 500ml beaker, then sequentially added into beaker 140ml absolute ethyl alcohol and 70ml deionized water, 50 DEG C of water bath with thermostatic control China insulation 10min are placed in after stirring, and under the conditions of magnetic agitation dropwise 50ml tetraethyl orthosilicate is added, time for adding is controlled in 8min, continues to stir 40min after dripping, will precipitation after ageing 17h Thing centrifuges, and by product distilled water flushing 2 times, is placed in 80 DEG C finally washes of absolute alcohol with once, after cleaning Dried in air dry oven, obtained presoma is ground, 50min is calcined at 500 DEG C, obtains dispersed nano titanium dioxide Silicon grain;

The preparation of multiple grinding particle

Six water cerous nitrates are dissolved in normal propyl alcohol and the mixed solution of deionized water, six water cerous nitrates, normal propyl alcohol and Deionized water counts six water cerous nitrates in mass ratio:Normal propyl alcohol:Deionized water=1:2:2 ratio mixing, then adds acetyl Acetone, cerium colloidal sol is configured, 15h is stirred at room temperature, obtains the glassy yellow colloidal sol of transparent clarification, then by stepObtained single point Dissipate silica dioxide granule and be immersed in 25min in the cerium colloidal sol of acquisition under conditions of ultrasound plus mechanical agitation, then wrap surface The nanometer silicon dioxide particle centrifugation of cerium colloidal sol is covered with, is placed in 70 DEG C of air dry ovens and dries, is calcined 45min through 500 DEG C, i.e., It can obtain multiple grinding particle;

Adhesive is made up of first and second liang of components, and first component and component B count first component in mass ratio:Component B=2:1 ratio Example mixing, wherein:

First component includes following component according to the mass fraction:

Modifying epoxy resin by organosilicon:40 parts, polyurethane elastomer:15 parts, chain extender:1 part, filler:5 parts, plasticizer: 3 parts, catalyst:2 parts, foaming agent:6 parts, fire retardant:1 part, hydrolysis-resisting agent:2 parts, compound rare-earth:0.8 part, pentaerythrite four is hard Acid ester salt:1 part, silane coupler:10 parts, curing agent:20 parts, diluent:5 parts;

Chain extender is diamine;Filler is carbon black;Plasticizer is repefral;Catalyst is benzyl triethyl ammonium Ammonium chloride;Foaming agent is methyl-silicone oil;Fire retardant is phosphotriester;Hydrolysis-resisting agent is poly- carbonization diamines;Curing agent is modified poly- Amide-type curing agent;Diluent is methanol;Compound rare-earth includes following component by weight percentage:La:12%, Y:15%, Sc: 5%, Gd:8%, Sm:9%, Pr:13%, remaining is lanthanide series, and above each component sum is 100%;

Component B includes following component according to the mass fraction:

Water soluble phenol resin:46 parts, precipitated calcium carbonate:3 parts, organobentonite:5 parts, molybdenum disulfide:1 part, carboxyl liquid Body nitrile rubber:0.9- parts.

The manufacture method of above-mentioned high combination property multiple grinding piece, the manufacture method of the multiple grinding piece are included to flow down Journey:Upper glue process, plant sand process, solidify afterwards process, flexure band water conservancy project sequence, laser cutting process, the anti-deformation process process of base material It is as follows with storage process, concrete operations:

(i) adhesive is first prepared, then the adhesive coating on the base material chosen, adhesive is using roller coat, blade coating or flat At least one of painting mode is coated on base material;

The specific preparation method of adhesive is as follows:

A. the preparation of first component

Modifying epoxy resin by organosilicon, polyurethane elastomer, filler are delivered in dispersion cylinder, turn on agitator is slowly stirred Mix, mixing speed is 300 turns/min, after stirring 19min, then adds plasticizer, chain extender, catalyst, foaming agent, fire-retardant Agent, continue to stir 25min, mixing speed is 150 turns/min, then adds compound rare-earth, four hard ester of pentaerythrite in disperseing just Hydrochlorate, silane coupler, hydrolysis-resisting agent, continue to stir 10min, mixing speed is that 370 turns/min obtains mixture;

Curing agent is dissolved with diluent, then the curing agent after dissolving is mixed with mixture, solidified at room temperature It is stand-by to first component;

B. the preparation of component B

By water soluble phenol resin, precipitated calcium carbonate, organobentonite, molybdenum disulfide, carboxyl LNBR in the lump Deliver in dispersion cylinder and be stirred mixing, mixing speed is 250 turns/min, and after stirring 30 minutes, it is stand-by that discharging obtains component B;

C. the synthesis of adhesive

By the first and second components first in mass ratio:Second=2:1 ratio is uniformly mixed, and mixing speed is 150 turns/min, is stirred The adhesive can be obtained by mixing 20-30min;

Abrasive grains are spread according to the region divided on base material, on adhesive, the same area grinding Grain size is identical;

Abrasive grains are contained in hand sieve, spin vibration sieve, make weight of the abrasive grains by itself, equably embedded in level In the adhesive for the base material put, regional is sieved using different purpose hands;

The semi-finished product that abrasive grains are embedded with step 2 are subjected to solidify afterwards process, flexure band water conservancy project sequence, laser successively The anti-deformation process process of cutting action, base material and storage process and then obtained abrasive sheet finished product;

In solidify afterwards process:Adhesive is solidifying 20min at a temperature of 70 DEG C;

In flexure band water conservancy project sequence:It is combined using the radial direction flexure in mechanical flexure and two 45 ° of flexures, wherein water amount ≤ 20g/m2, crimpness≤12mm after mechanical flexure.

Using anti-deformation resin base material is sprayed in the anti-deformation process process of base material or coating processing, anti-deformation resin It is waterborne polyurethane resin.

Embodiment 2

A kind of high combination property multiple grinding piece that the present embodiment provides, a kind of high combination property that the present embodiment provides are answered Abrasive sheet is closed, including base material, abrasive grains and adhesive, abrasive grains are attached on base material by adhesive, substrate surface is Circle, the thickness of base material is 90 μm, and base material is polypropylene film, and substrate surface is divided into some regions, some regions point Border circular areas that Wei be using the center of substrate surface as the center of circle and several concentric annular regions, the abrasive grains of the same area attachment Size is identical, and the abrasive grains of different zones attachment are of different sizes, the size for the abrasive grains being attached on base material regional Gradually increase along substrate center to material edge, wherein:

Abrasive grains are multiple grinding particle, and the size of abrasive grains is 0.1 μm -20 μm, by nano ceric oxide and two Silica two kinds of particles is combined, and the specific preparation method of multiple grinding particle is as follows:

The preparation of monodisperse silica particle

80ml ammoniacal liquor is measured to be placed in 500ml beaker, then sequentially added into beaker 140ml absolute ethyl alcohol and 70ml deionized water, 50 DEG C of water bath with thermostatic control China insulation 15min are placed in after stirring, and under the conditions of magnetic agitation dropwise 50ml tetraethyl orthosilicate is added, time for adding is controlled in 9min, continues to stir 30min after dripping, will precipitation after ageing 15h Thing centrifuges, and by product distilled water flushing 3 times, is placed in 70 DEG C finally washes of absolute alcohol with once, after cleaning Dried in air dry oven, obtained presoma is ground, 60min is calcined at 500 DEG C, obtains dispersed nano titanium dioxide Silicon grain;

The preparation of multiple grinding particle

Six water cerous nitrates are dissolved in normal propyl alcohol and the mixed solution of deionized water, six water cerous nitrates, normal propyl alcohol and Deionized water counts six water cerous nitrates in mass ratio:Normal propyl alcohol:Deionized water=1:2:2 ratio mixing, then adds acetyl Acetone, cerium colloidal sol is configured, 16h is stirred at room temperature, obtains the glassy yellow colloidal sol of transparent clarification, then by stepObtained single point Dissipate silica dioxide granule and be immersed in 20min in the cerium colloidal sol of acquisition under conditions of ultrasound plus mechanical agitation, then wrap surface The nanometer silicon dioxide particle centrifugation of cerium colloidal sol is covered with, is placed in 80 DEG C of air dry ovens and dries, is calcined 40min through 500 DEG C, i.e., It can obtain multiple grinding particle;

Adhesive is made up of first and second liang of components, and first component and component B count first component in mass ratio:Component B=2:1 ratio Example mixing, wherein:

First component includes following component according to the mass fraction:

Modifying epoxy resin by organosilicon:60 parts, polyurethane elastomer:25 parts, chain extender:3 parts, filler:8 parts, plasticizer: 5 parts, catalyst:4 parts, foaming agent:8 parts, fire retardant:3 parts, hydrolysis-resisting agent:4 parts, compound rare-earth:1.4 parts, pentaerythrite four is hard Acid ester salt:3 parts, silane coupler:18 parts, curing agent:30 parts, diluent:10 parts;

Chain extender is dihydric alcohol;Filler is carbon black;Plasticizer is repefral;Catalyst is benzyl triethyl ammonium Ammonium chloride;Foaming agent is methyl-silicone oil;Fire retardant is phosphotriester;Hydrolysis-resisting agent is poly- carbonization diamines;Curing agent is modified poly- Amide-type curing agent;Diluent is ethyl acetate;Compound rare-earth includes following component by weight percentage:La:16%, Y:17%, Sc:8%, Gd:10%, Sm:15%, Pr:16%, remaining is lanthanide series, and above each component sum is 100%;

Component B includes following component according to the mass fraction:

Water soluble phenol resin:70 parts, precipitated calcium carbonate:6 parts, organobentonite:11 parts, molybdenum disulfide:3 parts, carboxyl LNBR:1.2 part.

The manufacture method of above-mentioned high combination property multiple grinding piece, the manufacture method of the multiple grinding piece are included to flow down Journey:Upper glue process, plant sand process, solidify afterwards process, flexure band water conservancy project sequence, laser cutting process, the anti-deformation process process of base material It is as follows with storage process, concrete operations:

(i) adhesive is first prepared, then the adhesive coating on the base material chosen, adhesive is using roller coat, blade coating or flat At least one of painting mode is coated on base material;

The specific preparation method of adhesive is as follows:

A. the preparation of first component

Modifying epoxy resin by organosilicon, polyurethane elastomer, filler are delivered in dispersion cylinder, turn on agitator is slowly stirred Mix, mixing speed is 350 turns/min, after stirring 16min, then adds plasticizer, chain extender, catalyst, foaming agent, fire-retardant Agent, continue to stir 20min, mixing speed is 200 turns/min, then adds compound rare-earth, four hard ester of pentaerythrite in disperseing just Hydrochlorate, silane coupler, hydrolysis-resisting agent, continue to stir 19min, mixing speed is that 340 turns/min obtains mixture;

Curing agent is dissolved with diluent, then the curing agent after dissolving is mixed with mixture, solidified at room temperature It is stand-by to first component;

B. the preparation of component B

By water soluble phenol resin, precipitated calcium carbonate, organobentonite, molybdenum disulfide, carboxyl LNBR in the lump Deliver in dispersion cylinder and be stirred mixing, mixing speed is 200 turns/min, and after stirring 20 minutes, it is stand-by that discharging obtains component B;

C. the synthesis of adhesive

By the first and second components first in mass ratio:Second=2:1 ratio is uniformly mixed, and mixing speed is 100 turns/min, is stirred The adhesive can be obtained by mixing 20min;

Abrasive grains are spread according to the region divided on base material, on adhesive, the same area grinding Grain size is identical;

Abrasive grains are contained in hand sieve, spin vibration sieve, make weight of the abrasive grains by itself, equably embedded in level In the adhesive for the base material put, regional is sieved using different purpose hands;

The semi-finished product that abrasive grains are embedded with step 2 are subjected to solidify afterwards process, flexure band water conservancy project sequence, laser successively The anti-deformation process process of cutting action, base material and storage process and then obtained abrasive sheet finished product;

In solidify afterwards process:Adhesive is solidifying 40min at a temperature of 60 DEG C;

In flexure band water conservancy project sequence:It is combined using the radial direction flexure in mechanical flexure and two 45 ° of flexures, wherein water amount ≤ 20g/m2, crimpness≤12mm after mechanical flexure.

Using anti-deformation resin base material is sprayed in the anti-deformation process process of base material or coating processing, anti-deformation resin It is acrylic resin.

Embodiment 3

A kind of high combination property multiple grinding piece that the present embodiment provides, a kind of high combination property that the present embodiment provides are answered Abrasive sheet is closed, including base material, abrasive grains and adhesive, abrasive grains are attached on base material by adhesive, substrate surface is Circle, the thickness of base material is 70 μm, and base material is polyethylene film, and substrate surface is divided into some regions, some regions point Border circular areas that Wei be using the center of substrate surface as the center of circle and several concentric annular regions, the abrasive grains of the same area attachment Size is identical, and the abrasive grains of different zones attachment are of different sizes, the size for the abrasive grains being attached on base material regional Gradually increase along substrate center to material edge, wherein:

Abrasive grains are multiple grinding particle, and the size of abrasive grains is 0.1 μm -20 μm, by nano ceric oxide and two Silica two kinds of particles is combined, and the specific preparation method of multiple grinding particle is as follows:

The preparation of monodisperse silica particle

80ml ammoniacal liquor is measured to be placed in 500ml beaker, then sequentially added into beaker 140ml absolute ethyl alcohol and 70ml deionized water, 50 DEG C of water bath with thermostatic control China insulation 12min are placed in after stirring, and under the conditions of magnetic agitation dropwise 50ml tetraethyl orthosilicate is added, time for adding is controlled in 10min, continues to stir 50min after dripping, will be heavy after ageing 18h Starch centrifuges, and by product distilled water flushing 4 times, is placed in 75 DEG C finally washes of absolute alcohol with once, after cleaning Air dry oven in dry, obtained presoma is ground, 55min is calcined at 500 DEG C, obtains dispersed nano dioxy Silicon carbide particle;

The preparation of multiple grinding particle

Six water cerous nitrates are dissolved in normal propyl alcohol and the mixed solution of deionized water, six water cerous nitrates, normal propyl alcohol and Deionized water counts six water cerous nitrates in mass ratio:Normal propyl alcohol:Deionized water=1:2:2 ratio mixing, then adds acetyl Acetone, cerium colloidal sol is configured, 18h is stirred at room temperature, obtains the glassy yellow colloidal sol of transparent clarification, then by stepObtained single point Dissipate silica dioxide granule and be immersed in 30min in the cerium colloidal sol of acquisition under conditions of ultrasound plus mechanical agitation, then wrap surface The nanometer silicon dioxide particle centrifugation of cerium colloidal sol is covered with, is placed in 75 DEG C of air dry ovens and dries, is calcined 50min through 500 DEG C, i.e., It can obtain multiple grinding particle;

Adhesive is made up of first and second liang of components, and first component and component B count first component in mass ratio:Component B=2:1 ratio Example mixing, wherein:

First component includes following component according to the mass fraction:

Modifying epoxy resin by organosilicon:70 parts, polyurethane elastomer:20 parts, chain extender:2 parts, filler:6 parts, plasticizer: 4 parts, catalyst:3 parts, foaming agent:7 parts, fire retardant:2 parts, hydrolysis-resisting agent:3 parts, compound rare-earth:1 part, four hard ester of pentaerythrite Hydrochlorate:2 parts, silane coupler:15 parts, curing agent:25 parts, diluent:8 parts;

Chain extender is diamine;Filler is carbon black;Plasticizer is repefral;Catalyst is benzyl triethyl ammonium Ammonium chloride;Foaming agent is methyl-silicone oil;Fire retardant is phosphotriester;Hydrolysis-resisting agent is poly- carbonization diamines;Curing agent is modified poly- Amide-type curing agent;Diluent is methanol or ethyl acetate;Compound rare-earth includes following component by weight percentage:La:14%, Y:16%, Sc:7%, Gd:8-10%, Sm:12%, Pr:14%, remaining is lanthanide series, and above each component sum is 100%;

Component B includes following component according to the mass fraction:

Water soluble phenol resin:58 parts, precipitated calcium carbonate:5 parts, organobentonite:8 parts, molybdenum disulfide:2 parts, carboxyl liquid Body nitrile rubber:1 part.

The manufacture method of above-mentioned high combination property multiple grinding piece, the manufacture method of the multiple grinding piece are included to flow down Journey:Upper glue process, plant sand process, solidify afterwards process, flexure band water conservancy project sequence, laser cutting process, the anti-deformation process process of base material It is as follows with storage process, concrete operations:

(i) adhesive is first prepared, then the adhesive coating on the base material chosen, adhesive is using roller coat, blade coating or flat At least one of painting mode is coated on base material;

The specific preparation method of adhesive is as follows:

A. the preparation of first component

Modifying epoxy resin by organosilicon, polyurethane elastomer, filler are delivered in dispersion cylinder, turn on agitator is slowly stirred Mix, mixing speed is 320 turns/min, after stirring 18min, then adds plasticizer, chain extender, catalyst, foaming agent, fire-retardant Agent, continue to stir 30min, mixing speed is 180 turns/min, then adds compound rare-earth, four hard ester of pentaerythrite in disperseing just Hydrochlorate, silane coupler, hydrolysis-resisting agent, continue to stir 15min, mixing speed is that 390 turns/min obtains mixture;

Curing agent is dissolved with diluent, then the curing agent after dissolving is mixed with mixture, solidified at room temperature It is stand-by to first component;

B. the preparation of component B

By water soluble phenol resin, precipitated calcium carbonate, organobentonite, molybdenum disulfide, carboxyl LNBR in the lump Deliver in dispersion cylinder and be stirred mixing, mixing speed is 300 turns/min, and after stirring 25 minutes, it is stand-by that discharging obtains component B;

C. the synthesis of adhesive

By the first and second components first in mass ratio:Second=2:1 ratio is uniformly mixed, and mixing speed is 200 turns/min, is stirred The adhesive can be obtained by mixing 20-30min;

Abrasive grains are spread according to the region divided on base material, on adhesive, the same area grinding Grain size is identical;

Abrasive grains are contained in hand sieve, spin vibration sieve, make weight of the abrasive grains by itself, equably embedded in level In the adhesive for the base material put, regional is sieved using different purpose hands;

The semi-finished product that abrasive grains are embedded with step 2 are subjected to solidify afterwards process, flexure band water conservancy project sequence, laser successively The anti-deformation process process of cutting action, base material and storage process and then obtained abrasive sheet finished product;

In solidify afterwards process:Adhesive is solidifying 30min at a temperature of 80 DEG C;

In flexure band water conservancy project sequence:It is combined using the radial direction flexure in mechanical flexure and two 45 ° of flexures, wherein water amount ≤ 20g/m2, crimpness≤12mm after mechanical flexure.

Using anti-deformation resin base material is sprayed in the anti-deformation process process of base material or coating processing, anti-deformation resin It is phenolic resin.

In addition to the implementation, the present invention can also have other embodiment.It is all to use equivalent substitution or equivalent transformation shape Into technical scheme, all fall within the protection domains of application claims.

Claims (5)

1. a kind of manufacture method of high combination property multiple grinding piece, the high combination property multiple grinding piece includes base material, grinding Particle and adhesive, the abrasive grains are attached on base material by adhesive, and the substrate surface is circular, the base material table Face is divided into some regions, and some regions are respectively using the center of substrate surface as the border circular areas in the center of circle and several same Heart circle ring area, the abrasive grains size of the same area attachment is identical, and the abrasive grains of different zones attachment are of different sizes, attachment The size of abrasive grains on base material regional gradually increases along substrate center to material edge, wherein:
The abrasive grains are multiple grinding particle, are combined by nano ceric oxide and silica two kinds of particles, described The specific preparation method of multiple grinding particle is as follows:
(1) the preparation of monodisperse silica particle
Measure 80ml ammoniacal liquor to be placed in 500ml beaker, 140ml absolute ethyl alcohol and 70ml are then sequentially added into beaker Deionized water, it is placed in after stirring in 50 DEG C of waters bath with thermostatic control and is incubated 10-15min, and is added dropwise under the conditions of magnetic agitation 50ml tetraethyl orthosilicate, time for adding are controlled in 8-10min, continue to stir 30-50min after dripping, after being aged 15-18h Sediment is centrifuged, and by product distilled water flushing 2-4 times, cleaning is rearmounted finally washes of absolute alcohol with once Dried in 70-80 DEG C of air dry oven, obtained presoma is ground, 50-60min is calcined at 500 DEG C, obtains list Scattered nanometer silicon dioxide particle;
(2) the preparation of multiple grinding particle
Six water cerous nitrates are dissolved in normal propyl alcohol and the mixed solution of deionized water, then add acetylacetone,2,4-pentanedione, configure cerium Colloidal sol, 15-18h is stirred at room temperature, obtains the glassy yellow colloidal sol of transparent clarification, then by step (1) obtained single dispersing titanium dioxide Silicon grain is immersed in 20-30min in the cerium colloidal sol of acquisition under conditions of ultrasound plus mechanical agitation, and Surface coating then is had into cerium The nanometer silicon dioxide particle centrifugation of colloidal sol, is placed in 70-80 DEG C of air dry oven and dries, and is calcined 40-50min through 500 DEG C, i.e., It can obtain multiple grinding particle;
Described adhesive is made up of first and second liang of components, and first component and component B count first component in mass ratio:Component B=2:1 Ratio mixes, wherein:
Described first component includes following component according to the mass fraction:
Modifying epoxy resin by organosilicon:40-60 parts, polyurethane elastomer:15-25 parts, chain extender:1-3 parts, filler:5-8 parts, Plasticizer:3-5 parts, catalyst:2-4 parts, foaming agent:6-8 parts, fire retardant:1-3 parts, hydrolysis-resisting agent:2-4 parts, compound rare-earth: 0.8-1.4 parts, the stearic acid salt of pentaerythrite four:1-3 parts, silane coupler:10-18 parts, curing agent:20-30 parts, diluent: 5-10 parts;
Described chain extender is diamine or dihydric alcohol;Described filler is carbon black;Described plasticizer is phthalic acid two Methyl esters;Described catalyst is benzyltriethylammoinium chloride;Described foaming agent is methyl-silicone oil;Described fire retardant is phosphoric acid Three esters;Described hydrolysis-resisting agent is poly- carbonization diamines;Described curing agent is modified polyamide class curing agent;Described diluent For methanol or ethyl acetate;The compound rare-earth includes following component by weight percentage:La:12-16%, Y:15-17%, Sc:5-8%, Gd:8-10%, Sm:9-15%, Pr:13-16%, remaining is lanthanide series, and above each component sum is 100%;
The component B includes following component according to the mass fraction:
Water soluble phenol resin:46-70 parts, precipitated calcium carbonate:3-6 parts, organobentonite:5-11 parts, molybdenum disulfide:1-3 parts, Carboxyl LNBR:0.9-1.2 parts;It is characterized in that:The manufacture method of the multiple grinding piece includes below scheme:Gluing Process, plant sand process, solidify afterwards process, flexure band water conservancy project sequence, laser cutting process, the anti-deformation process process of base material and storage work Sequence, concrete operations are as follows:
(i) adhesive is first prepared, then the adhesive coating on the base material chosen, the adhesive is using roller coat, blade coating or flat At least one of painting mode is coated on base material;
The specific preparation method of the adhesive is as follows:
A. the preparation of first component
Modifying epoxy resin by organosilicon, polyurethane elastomer, filler are delivered in dispersion cylinder, turn on agitator is slowly stirred, and is stirred Mix speed and turn/min for 300-350, after stirring 16-19min, then add plasticizer, chain extender, catalyst, foaming agent, fire-retardant Agent, continue to stir 20-30min, mixing speed is that 150-200 turns/min, then adds compound rare-earth, pentaerythrite into dispersion cylinder Four stearic acid salt, silane coupler, hydrolysis-resisting agent, continue to stir 10-19min, mixing speed is that 340-390 turns/min is mixed Compound;
Curing agent is dissolved with diluent, is then mixed the curing agent after dissolving with mixture, solidification at room temperature obtains first Component is stand-by;
B. the preparation of component B
Water soluble phenol resin, precipitated calcium carbonate, organobentonite, molybdenum disulfide, carboxyl LNBR are delivered in the lump Mixing is stirred in dispersion cylinder, mixing speed is that 200-300 turns/min, and after stirring 20-30 minutes, discharging obtains component B and treated With;
C. the synthesis of adhesive
By the first and second components first in mass ratio:Second=2:1 ratio is uniformly mixed, and mixing speed is that 100-200 turns/min, is stirred The adhesive can be obtained by mixing 20-30min;
(ii) abrasive grains are spread according to the region divided on base material, on adhesive, the same area abrasive grains are big It is small identical;
Abrasive grains are contained in hand sieve, spin vibration sieve, abrasive grains is equably put by the weight of itself embedded in level In the adhesive for the base material, regional is sieved using different purpose hands;
(iii) the semi-finished product that abrasive grains are embedded with step 2 are subjected to solidify afterwards process, flexure band water conservancy project sequence, laser cutting successively The anti-deformation process process of process, base material and storage process and then obtained abrasive sheet finished product;
In the solidify afterwards process:Adhesive is solidifying 20-40min at a temperature of 60-80 DEG C;
In the flexure band water conservancy project sequence:It is combined using the radial direction flexure in mechanical flexure and two 45 ° of flexures, wherein water amount ≤ 20g/m2, crimpness≤12mm after mechanical flexure.
2. the manufacture method of high combination property multiple grinding piece according to claim 1, it is characterised in that:In multiple grinding During the preparation of particle, described six water cerous nitrates, normal propyl alcohol and deionized water count six water cerous nitrates in mass ratio:Positive third Alcohol:Deionized water=1:2:2 ratio mixing.
3. the manufacture method of high combination property multiple grinding piece according to claim 1, it is characterised in that:The grinding The size of grain is 0.1 μm -20 μm.
4. the manufacture method of high combination property multiple grinding piece according to claim 1, it is characterised in that:Described base material Thickness be 50-90 μm, and described base material is polyester film, polyamide film, polypropylene film or polyethylene film.
5. the manufacture method of high combination property multiple grinding piece as claimed in claim 1, it is characterised in that:In the step (3) Using anti-deformation resin base material is sprayed in the anti-deformation process process of base material or coating processing, the anti-deformation resin is water Property polyurethane resin, epoxy resin, phenolic resin or acrylic resin.
CN201510985326.9A 2015-12-25 2015-12-25 A kind of high combination property multiple grinding piece and its manufacture method CN105500225B (en)

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