CN112059936B - Dry-wet dual-purpose polishing grinding tool and preparation method thereof - Google Patents

Dry-wet dual-purpose polishing grinding tool and preparation method thereof Download PDF

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CN112059936B
CN112059936B CN202010912050.2A CN202010912050A CN112059936B CN 112059936 B CN112059936 B CN 112059936B CN 202010912050 A CN202010912050 A CN 202010912050A CN 112059936 B CN112059936 B CN 112059936B
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parts
layer
agent
phenolic resin
dry
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CN112059936A (en
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方红
卞振伟
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DONGGUAN GOLDEN SUN ABRASIVES CO LTD
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DONGGUAN GOLDEN SUN ABRASIVES CO LTD
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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
    • 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
    • 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
    • B24D11/02—Backings, e.g. foils, webs, mesh fabrics
    • 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
    • B24D11/08—Equipment for after-treatment of the coated backings, e.g. for flexing the coating
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
    • C09D161/04—Condensation polymers of aldehydes or ketones with phenols only
    • C09D161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
    • C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/18—Fireproof paints including high temperature resistant paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

The invention relates to the technical field of grinding tools, in particular to a dry-wet dual-purpose polishing grinding tool and a preparation method thereof, and the dry-wet dual-purpose polishing grinding tool comprises a substrate layer, a bottom glue layer coated on the upper surface of the substrate layer, an abrasive layer attached to the upper surface of the bottom glue layer, a laminating layer coated on the upper surface of the abrasive layer, and a surface coating coated on the upper surface of the laminating layer, wherein the substrate layer comprises a high temperature resistant layer, a substrate flexible layer and a flattening layer which are sequentially laminated, the high temperature resistant layer is made of high temperature resistant resin, and the high temperature resistant resin comprises the following raw materials in parts by weight: 50-80 parts of first phenolic resin, 20-30 parts of water-based acrylic acid, 5-10 parts of first reinforcing agent, 5-10 parts of first coupling agent, 0.1-2.0 parts of first defoaming agent and 0.5-1.0 part of first penetrating agent. The polishing grinding tool provided by the invention can ensure the dry and wet performance of the conventional product and realize full hydration in the production process, and the dry and wet polishing grinding tool has good flexibility and grinding efficiency.

Description

Dry-wet dual-purpose polishing grinding tool and preparation method thereof
Technical Field
The invention relates to the technical field of grinding tools, in particular to a dry and wet dual-purpose polishing grinding tool and a preparation method thereof.
Background
Abrasive tools include coated abrasives and bonded abrasives, and sandpaper, which is an important coated abrasive, mainly comprises a base material, an abrasive and a binder.
The substrates used for sandpaper are increasing with the renewal and development of materials. However, with the improvement of environmental requirements, the requirement for the water-based property of the sand paper adhesive is more urgent, but the water-based resin has many problems in replacing the oil-based material with high polarity, such as low adhesive strength, poor water resistance and leveling property.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention aims to provide a dry-wet dual-purpose polishing grinding tool, which can ensure the dry-wet dual-purpose performance of the prior product and realize the full water-based performance in the production process by replacing the conventional base material, and has the advantages of good flexibility and grinding efficiency, production cost and environmental friendliness.
The invention aims to provide a preparation method of a dry-wet dual-purpose polishing grinding tool, which is simple to operate, convenient to control, high in production efficiency and low in production cost, and the prepared dry-wet dual-purpose polishing grinding tool has good flexibility and grinding efficiency and also has dry-wet dual-purpose performance.
The purpose of the invention is realized by the following technical scheme: the utility model provides a wet or dry polishing grinding apparatus, includes the substrate layer, coats the primer layer of substrate layer upper surface, laminate in the abrasive material layer of primer layer upper surface, coat in the rubberizing layer of abrasive material layer upper surface, and coat in the surface coating of rubberizing layer upper surface, the substrate layer includes high temperature resistant layer, the flexible layer of substrate and the leveling layer of pressfitting in proper order, the flexible layer of substrate is compound nylon or nylon membrane, high temperature resistant layer is made by high temperature resistant resin, high temperature resistant resin includes the raw materials of following parts by weight:
50-80 parts of first phenolic resin
20-30 parts of water-based acrylic acid
5-10 parts of first reinforcing agent
5-10 parts of first coupling agent
0.1 to 2.0 portions of first defoaming agent
0.5-1.0 part of first penetrant;
the first phenolic resin is thermosetting resol, and the solid content is 75-85%; the aqueous acrylic acid is VN 960; the first reinforcing agent is a reinforcing agent XY-5501 manufactured by Chusheng Weiqi chemical Co., Ltd.
Preferably, each part of the first coupling agent is any one of aminopropyltriethoxysilane, aminopropyltrimethoxysilane and triglycidyl ether oxypropyltrimethoxysilane. Each part of the first defoaming agent is at least one of penetrating silicone oil, a high-carbon alcohol fatty acid ester compound, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether, polyoxypropylene polyoxyethylene glycerol ether and polydimethylsiloxane; more preferably, each part of the first defoaming agent is a mixture of penetrating silicone oil, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether and polydimethylsiloxane in a weight ratio of 0.8-1.2:0.4-0.8:0.1-0.5: 0.6-1.0. Each part of the first penetrant is one of span and tween.
The dry-wet dual-purpose polishing grinding tool has the advantages that the conventional base material is replaced by the base material layer consisting of the high-temperature-resistant layer, the base material flexible layer and the leveling layer which are sequentially laminated, so that the dry-wet dual-purpose performance of the conventional product can be guaranteed, the full water-based performance in the production process can be realized, and the dry-wet dual-purpose polishing grinding tool has good flexibility and grinding efficiency, is low in production cost and is more environment-friendly. The first phenolic resin adopted in the high-temperature-resistant resin coated with the high-temperature-resistant layer has certain mechanical strength and insulativity, is stable to an acid solution and can resist a high-temperature environment of no more than 280 ℃; the adopted water-based acrylic acid plays a role in neutralizing the brittleness of the phenolic resin in the high-temperature resistant resin, so that the toughness of the system can be obviously improved, and the high-temperature resistant resin is favorable for providing stiffness for the base material and simultaneously the brittleness of the base material is not increased; the first coupling agent is added to enable the nylon and the resin to be combined more tightly; in addition, the addition of the first penetrating agent can enable the high-temperature-resistant resin to be rapidly dispersed and adsorbed to the surface of the substrate layer.
Preferably, the high-temperature resistant resin is prepared by the following steps:
s1, weighing the first phenolic resin according to the parts by weight, adding the first phenolic resin into a reaction kettle, slowly adding the water-based acrylic acid and the first reinforcing agent under the stirring state, and continuously stirring at normal temperature for 25-35min to obtain a mixture A for later use;
s2, adding the first coupling agent, the first defoaming agent and the first penetrating agent into the mixture A obtained in the step S1 through mixing and stirring, and continuing stirring for 1-2 hours at the speed of 300-400r/min to obtain the high-temperature resistant resin.
The high-temperature-resistant resin prepared by the method can obviously improve the toughness of a system, is beneficial to ensuring that the toughness of the high-temperature-resistant resin is provided for a base material, does not increase the brittleness of the base material, and has good mechanical strength and insulativity; in the preparation process, the stirring speed in step S2 needs to be strictly controlled to be 300-400r/min, if the stirring speed is too high, the first coupling agent, the first defoaming agent and the first penetrant are not favorable for being fully mixed with the mixture a due to the difference of centrifugal force, and if the stirring speed is too low, the mixing of the first coupling agent, the first defoaming agent and the first penetrant is also not favorable.
Preferably, the primer layer is formed by coating a modified phenolic resin binder, and the modified phenolic resin binder is prepared by mixing A, B, C and D according to the weight ratio of 100:1-40:0.5-5: 5-40;
each part of the component A comprises the following components in parts by weight: 50-70 parts of second phenolic resin and 30-50 parts of polyurethane; the polyurethane is aqueous polyurethane emulsion U56 produced by Guangzhou Haoyiei chemical technology ltd, and the solid content is 20-40%; the component B is water;
each part of the C component comprises the following components in parts by weight: 1-5 parts of silane coupling agent, 0.2-3.0 parts of emulsifier and 0.2-2.0 parts of second defoaming agent; the component D is a first filler.
Preferably, each part of the silane coupling agent is at least one of aminopropyltriethoxysilane, aminopropyltrimethoxysilane and triglycidyl ether oxypropyltrimethoxysilane; more preferably, the silane coupling agent is a mixture of aminopropyltriethoxysilane, aminopropyltrimethoxysilane and triglycidyl ether oxypropyltrimethoxysilane in a weight ratio of 0.8-1.2:0.4-0.8:0.1-0.5 per part. Each part of the first filler is a mixture of cryolite, calcium carbonate and talcum powder according to the weight ratio of 0.4-0.8:0.8-1.2: 0.1-0.5; more preferably, each part of the first filler is any one of cryolite, calcium carbonate, wollastonite and talc.
Preferably, each part of the second defoaming agent is at least one of silicone emulsion, higher alcohol fatty acid ester complex, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether, polyoxypropylene polyoxyethylene glycerol ether and polydimethylsiloxane; more preferably, each part of the second defoaming agent is a mixture of emulsified silicone oil, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether and polydimethylsiloxane in a weight ratio of 0.8-1.2:0.6-1.0:0.4-0.8: 0.1-0.5.
The primer layer is formed by coating the modified phenolic resin binder, and the modified phenolic resin binder has good heat resistance and impact resistance, wherein the adopted second phenolic resin can meet the strength of adhering abrasive materials and can also ensure that the resin shows high-performance heat resistance and impact resistance in the using process; the addition of the aqueous polyurethane emulsion can obviously improve the bonding performance of the modified phenolic resin binder and improve the bonding stability of the primer layer; the component B adopts water as a solvent, so that the prepared modified phenolic resin binder can reduce the production cost of the grinding tool, is more environment-friendly and meets the requirement of green chemistry; the addition of the silane coupling agent can enable the second phenolic resin and the polyurethane to be more closely combined; the addition of the second defoaming agent can well avoid the influence on the bonding performance of the finally obtained modified phenolic resin binder caused by the generation of bubbles during the preparation of the modified phenolic resin binder.
Preferably, the compound glue layer is formed by coating compound glue, and the compound glue comprises the following raw materials in parts by weight:
80-100 parts of third phenolic resin
1-5 parts of second coupling agent
0.1-2.0 parts of third defoaming agent
5-40 parts of second filler
0.5-2.0 parts of a first leveling agent;
the third phenolic resin is thermosetting resol phenolic resin with the solid content of 75-85%; the first leveling agent is BYK-333.
Preferably, each part of the second coupling agent is any one of aminopropyltriethoxysilane, aminopropyltrimethoxysilane and triglycidyl ether oxypropyltrimethoxysilane; more preferably, the second coupling agent is a mixture of aminopropyltriethoxysilane, aminopropyltrimethoxysilane and triglycidyl ether oxypropyltrimethoxysilane in a weight ratio of 0.8-1.2:0.6-1.0:0.1-0.5 per part. Each part of the third defoaming agent is at least one of penetrating silicone oil, a high-carbon alcohol fatty acid ester compound, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether, polyoxypropylene polyoxyethylene glycerol ether and polydimethylsiloxane.
The compound glue layer is formed by coating compound glue, the third phenolic resin adopted in the compound glue can meet the strength of adhering abrasive materials and can also ensure that the resin shows high-performance heat resistance and impact resistance in the using process, and the addition of the third phenolic resin increases the strength of the compound glue and reduces the cost; the first leveling agent wets the surface of the abrasive in the compound system, so that the compound is more uniformly distributed in the middle of the abrasive gap; and the addition of the second coupling agent serves to more intimately bond the nylon to the resin.
Preferably, the compound adhesive is prepared by the following steps:
e1, weighing a third phenolic resin according to the weight parts, adding the third phenolic resin into the reaction kettle, slowly adding the first leveling agent and the second coupling agent under the stirring state, and continuously stirring at normal temperature for 25-35min to obtain a mixture A for later use;
e2, uniformly mixing and stirring the second filler and the third defoaming agent, adding the mixture into the mixture A obtained in the step S1, and continuously stirring the mixture for 1 to 2 hours at the speed of 300-400r/min to obtain the compound adhesive.
The compound adhesive is prepared by the method, and the heat resistance and the impact resistance of a system can be obviously improved by utilizing the compound adhesive prepared by the method, so that the strength of the adhesive abrasive is favorably ensured, and in addition, the compound adhesive has good mechanical strength and insulativity; the stirring speed in step S2 needs to be strictly controlled to be 300-400r/min during the preparation process, if the stirring speed is too fast, the mixing of the second filler and the third defoaming agent with the mixture a is not favorable due to the difference of the centrifugal force, and if the stirring speed is too slow, the mixing of the second filler and the third defoaming agent is also not favorable.
The invention also provides a preparation method of the dry-wet dual-purpose polishing grinding tool, which comprises the following steps:
1) treating a base material layer: heating the leveling layer to 150-;
2) coating a primer: uniformly coating the primer on the upper surface of the substrate layer obtained in the step 1) to obtain a semi-finished product A;
3) sand planting: adsorbing the abrasive material on the upper surface of the semi-finished product A obtained in the step 2) through high-voltage static electricity, heating to 65-125 ℃, pre-drying for 20-60min, adjusting the temperature to 60-135 ℃, and drying for 40-120min to obtain a semi-finished product B;
4) coating and glue compounding: heating the semi-finished product B obtained in the step 3) to 65-125 ℃ for pre-drying for 20-60min, uniformly coating compound glue on the upper surface of the semi-finished product B, adjusting the temperature to 60-135 ℃ for drying for 40-120min to obtain a semi-finished product C, and rolling;
5) and (3) rewetting treatment: uniformly spraying a moisture regaining agent on the upper surface of the semi-finished product C, wherein the dosage of the moisture regaining agent is 3-12mL/m2；
6) Parking: naturally placing and drying the semi-finished product C subjected to the rewetting treatment in the step 5) to obtain the dry and wet dual-purpose polishing grinding tool.
The dry-wet dual-purpose polishing abrasive tool is prepared by the method, and the dry-wet dual-purpose polishing abrasive tool prepared by the method has good flexibility andgrinding efficiency, and also has the performance of dry and wet use; and the preparation method has the advantages of simple operation, convenient control, high production efficiency and low production cost. In the preparation process, the drying temperature in the step 1) needs to be strictly controlled to be 30-160 ℃, if the temperature is too high, the flexible layer of the base material is coked and becomes brittle, the flexibility of the prepared polishing grinding tool is not facilitated, and if the heating temperature is too low, the drying is insufficient; in addition, the dosage of the moisture returning agent in the step 5) needs to be controlled to be 3-12mL/m2If the dosage is too large, the flexibility of the finally prepared polishing grinding tool is reduced, the production cost is improved, and if the dosage is too low, the rewetting treatment is not facilitated, so that the comprehensive performance of the finally prepared polishing grinding tool is influenced.
More preferably, the moisture regaining agent comprises the following raw materials in parts by weight:
1-5 parts of fatty acid ester sodium sulfate
0.5 to 2.0 portions of second penetrating agent
0.1 to 2.0 portions of fourth defoaming agent
90-110 parts of deionized water
0.5-2.0 parts of a second leveling agent;
the preferable second penetrating agent is fatty alcohol-polyoxyethylene ether; the fourth defoaming agent is at least one of penetrating silicone oil, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether, polyoxypropylene polyoxyethylene glycerol ether and polydimethylsiloxane.
The moisture regaining agent is prepared by the following steps: adding deionized water into a storage barrel according to the weight parts, slowly adding a second leveling agent, fatty acid ester sodium sulfate and a fourth defoaming agent into the deionized water under the stirring state, and continuously stirring at normal temperature for 3-5min until the stirring is uniform to obtain a finished product of the moisture regaining agent.
The pH value of the rewetting agent adopted by the invention is close to neutral, and the rewetting agent does not generate corrosion to the dry and wet dual-purpose polishing grinding tool.
The invention has the beneficial effects that: the dry-wet dual-purpose polishing grinding tool replaces the conventional base material by adopting the base material layer consisting of the high-temperature-resistant layer, the base material flexible layer and the leveling layer which are sequentially laminated, so that the dry-wet dual-purpose performance of the conventional product can be ensured, the full water-based performance in the production process can be realized, and the dry-wet dual-purpose polishing grinding tool has the advantages of good flexibility and grinding efficiency, production cost and environmental friendliness.
The preparation method of the dry-wet dual-purpose polishing grinding tool is simple to operate, convenient to control, high in production efficiency and low in production cost, and the prepared dry-wet dual-purpose polishing grinding tool has good flexibility and grinding efficiency and also has dry-wet dual-purpose performance.
Drawings
Fig. 1 is a schematic cross-sectional structure of the present invention.
The reference signs are: 1-substrate layer, 2-primer layer, 3-abrasive layer, 4-compound glue layer and 5-surface coating.
Detailed Description
For the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and the accompanying fig. 1, and the description of the embodiments is not intended to limit the present invention.
Example 1
The utility model provides a wet or dry polishing grinding apparatus, includes substrate layer 1, coats the primer layer 2 of 1 upper surface of substrate layer, laminate in the abrasive material layer 3 of 2 upper surfaces of primer layer, coat the compound glue film 4 of 3 upper surfaces of abrasive material layer, and coat the surface coating 5 of 4 upper surfaces of compound glue film, substrate layer 1 is including the high temperature resistant layer of pressfitting in proper order, the flexible layer of substrate and leveling layer, the flexible layer of substrate is compound nylon, the high temperature resistant layer is made by high temperature resistant resin, high temperature resistant resin includes the raw materials of following parts by weight:
50 parts of first phenolic resin
20 parts of water-based acrylic acid
5 parts of first reinforcing agent
5 parts of first coupling agent
0.1 part of first defoaming agent
0.5 part of first penetrant;
the first phenolic resin is thermosetting resol; the aqueous acrylic acid is VN 960; the first reinforcing agent is a reinforcing agent XY-5501 manufactured by Chusheng Weiqi chemical Co., Ltd.
Each part of the first coupling agent is aminopropyltriethoxysilane.
Each part of the first defoaming agent is a mixture of penetrating silicone oil, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether and polydimethylsiloxane according to the weight ratio of 0.8:0.4:0.1: 0.6.
Each part of the first penetrant is span.
Preferably, the high-temperature resistant resin is prepared by the following steps:
s1, weighing the first phenolic resin according to the parts by weight, adding the first phenolic resin into a reaction kettle, slowly adding the water-based acrylic acid and the first reinforcing agent under the stirring state, and continuously stirring at normal temperature for 25min to obtain a mixture A for later use;
s2, adding the first coupling agent, the first defoaming agent and the first penetrating agent into the mixture A obtained in the step S1 in a mixing and stirring manner, and continuing stirring for 1h at the speed of 300r/min to obtain the high-temperature-resistant resin.
The primer layer 2 is formed by coating a modified phenolic resin binder, and the modified phenolic resin binder is prepared by mixing A, B, C and D according to the weight ratio of 100:1:0.5: 5;
each part of the component A comprises the following components in parts by weight: 50 parts of a second phenolic resin and 30 parts of polyurethane; the polyurethane is aqueous polyurethane emulsion U56 produced by Guangzhou Haoyiei chemical technology Limited, and the solid content is 20%; each part of the component B is water;
each part of the C component comprises the following components in parts by weight: 1 part of silane coupling agent, 0.2 part of emulsifier and 0.2 part of second defoaming agent; each portion of the D component is a first filler.
Each part of the silane coupling agent is a mixture of aminopropyltriethoxysilane, aminopropyltrimethoxysilane and triglycidyl ether oxypropyltrimethoxysilane according to the weight ratio of 0.8:0.4: 0.1.
Each part of the first filler is a mixture of cryolite, calcium carbonate and talcum powder according to the weight ratio of 0.4:0.8: 0.1;
each part of the second defoaming agent is a mixture of emulsified silicone oil, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether and polydimethylsiloxane according to the weight ratio of 0.8:0.6:0.4: 0.1.
Preferably, the compound glue layer 4 is formed by coating compound glue, and the compound glue comprises the following raw materials in parts by weight:
80 parts of third phenolic resin
Second coupling agent 1 part
0.1 part of third defoaming agent
5 portions of second filler
0.5 part of first leveling agent;
the third phenolic resin is thermosetting resol phenolic resin with the solid content of 75 percent; the first leveling agent is BYK-333.
Each part of the second coupling agent is a mixture of aminopropyltriethoxysilane, aminopropyltrimethoxysilane and triglycidyl ether oxypropyltrimethoxysilane according to the weight ratio of 0.8:0.6: 0.1.
Each part of the third defoaming agent is penetrating silicone oil.
Preferably, the compound adhesive is prepared by the following steps:
e1, weighing a third phenolic resin according to the weight parts, adding the third phenolic resin into the reaction kettle, slowly adding the first leveling agent and the second coupling agent under the stirring state, and continuously stirring at normal temperature for 25min to obtain a mixture A for later use;
e2, uniformly mixing and stirring the second filler and the third defoaming agent, adding the mixture into the mixture A obtained in the step S1, and continuously stirring the mixture for 1 hour at the speed of 300r/min to obtain the compound rubber.
The preparation method of the dry-wet dual-purpose polishing grinding tool comprises the following steps:
1) treating the base material layer 1: heating the leveling layer to 150 ℃, uniformly paving the leveling layer on the upper surface of the flexible layer of the base material, uniformly extruding the leveling layer into the flexible layer of the base material by adopting a mirror roller with the pressure of 1kPa, coating the high-temperature-resistant resin on the lower surface of the flexible layer of the base material, and drying for 5min at the temperature of 130 ℃ to obtain a base material layer 1;
2) coating a primer: uniformly coating the primer on the upper surface of the substrate layer 1 obtained in the step 1) to obtain a semi-finished product A;
3) sand planting: adsorbing the abrasive material on the upper surface of the semi-finished product A obtained in the step 2) through high-voltage static electricity, heating to 65 ℃, pre-drying for 20min, adjusting the temperature to 60 ℃, and drying for 4min to obtain a semi-finished product B;
4) coating and glue compounding: heating the semi-finished product B obtained in the step 3) to 65 ℃ for pre-drying for 20min, uniformly coating compound glue on the upper surface of the semi-finished product B, adjusting the temperature to 60 ℃ for drying for 40min to obtain a semi-finished product C, and rolling;
5) and (3) rewetting treatment: uniformly spraying a moisture regaining agent on the upper surface of the semi-finished product C, wherein the dosage of the moisture regaining agent is 3mL/m2；
6) Parking: naturally placing and drying the semi-finished product C subjected to the rewetting treatment in the step 5) to obtain the dry and wet dual-purpose polishing grinding tool.
The moisture regaining agent comprises the following raw materials in parts by weight:
fatty acid ester sodium sulfate 1 part
0.5 part of second penetrant
0.1 part of fourth defoaming agent
90 parts of deionized water
0.5 part of a second leveling agent;
preferably, the second penetrating agent is fatty alcohol-polyoxyethylene ether; the fourth defoaming agent is permeable silicone oil.
The moisture regaining agent is prepared by the following steps: adding deionized water into a storage barrel according to the weight parts, slowly adding a second leveling agent, fatty acid ester sodium sulfate and a fourth defoaming agent into the deionized water under the stirring state, and continuously stirring for 3min at normal temperature until the stirring is uniform to obtain a finished product of the moisture regaining agent.
Example 2
The utility model provides a wet or dry polishing grinding apparatus, includes substrate layer 1, coats the primer layer 2 of 1 upper surface of substrate layer, laminate in the abrasive material layer 3 of 2 upper surfaces of primer layer, coat the compound gum layer 4 of 3 upper surfaces of abrasive material layer, and coat the surface coating 5 of compound gum layer 4 upper surface, substrate layer 1 is including the high temperature resistant layer, the flexible layer of substrate and the leveling layer of pressfitting in proper order, the flexible layer of substrate is the nylon membrane, the high temperature resistant layer is made by high temperature resistant resin, high temperature resistant resin includes the raw materials of following parts by weight:
58 parts of first phenolic resin
23 parts of water-based acrylic acid
6 parts of first reinforcing agent
6 parts of first coupling agent
0.5 part of first defoaming agent
0.7 part of first penetrant;
the first phenolic resin is thermosetting resol; the aqueous acrylic acid is VN 960; the first reinforcing agent is a reinforcing agent XY-5501 manufactured by Chusheng Weiqi chemical Co., Ltd.
Each part of the first coupling agent is aminopropyltrimethoxysilane.
Each part of the first defoaming agent is a mixture consisting of penetrating silicone oil, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether and polydimethylsiloxane according to the weight ratio of 0.9:0.5:0.2: 0.7.
Each serving of the first penetrant is tween.
Preferably, the high-temperature resistant resin is prepared by the following steps:
s1, weighing the first phenolic resin according to the parts by weight, adding the first phenolic resin into a reaction kettle, slowly adding the water-based acrylic acid and the first reinforcing agent under the stirring state, and continuously stirring at normal temperature for 28min to obtain a mixture A for later use;
s2, adding the first coupling agent, the first defoaming agent and the first penetrating agent into the mixture A obtained in the step S1 in a mixing and stirring manner, and continuing stirring for 1.3 hours at the speed of 325r/min to obtain the high-temperature-resistant resin.
The primer layer 2 is formed by coating a modified phenolic resin binder, and the modified phenolic resin binder is prepared by mixing A, B, C and D according to the weight ratio of 100:10:1: 15;
each part of the component A comprises the following components in parts by weight: 55 parts of a second phenolic resin and 35 parts of polyurethane; the polyurethane is aqueous polyurethane emulsion U56 produced by Guangzhou Haoyiei chemical technology Limited, and the solid content is 25%; each part of the component B is water;
each part of the C component comprises the following components in parts by weight: 2 parts of a silane coupling agent, 0.7 part of an emulsifier and 0.5 part of a second defoaming agent; each portion of the D component is a first filler.
Each part of the silane coupling agent is a mixture of aminopropyltriethoxysilane, aminopropyltrimethoxysilane and triglycidyl ether oxypropyltrimethoxysilane according to the weight ratio of 0.9:0.5: 0.2.
Each part of the first filler is a mixture of cryolite, calcium carbonate and talcum powder according to the weight ratio of 0.5:0.9: 0.2;
each part of the second defoaming agent is a mixture of emulsified silicone oil, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether and polydimethylsiloxane according to the weight ratio of 0.9:0.7:0.5: 0.2.
Preferably, the compound glue layer 4 is formed by coating compound glue, and the compound glue comprises the following raw materials in parts by weight:
85 parts of third phenolic resin
Second coupling agent 2 parts
0.5 part of third defoaming agent
15 portions of second filler
0.8 part of first leveling agent;
the third phenolic resin is thermosetting resol phenolic resin with the solid content of 78 percent; the first leveling agent is BYK-333.
Each part of the second coupling agent is a mixture of aminopropyltriethoxysilane, aminopropyltrimethoxysilane and triglycidyl ether oxypropyltrimethoxysilane in a weight ratio of 0.9:0.7: 0.2.
Each part of the third defoaming agent is polyoxyethylene polyoxypropylene pentaerythritol ether.
Preferably, the compound adhesive is prepared by the following steps:
e1, weighing a third phenolic resin according to the weight parts, adding the third phenolic resin into the reaction kettle, slowly adding the first leveling agent and the second coupling agent under the stirring state, and continuously stirring at normal temperature for 28min to obtain a mixture A for later use;
e2, uniformly mixing and stirring the second filler and the third defoaming agent, adding the mixture into the mixture A obtained in the step S1, and continuously stirring the mixture at the speed of 325r/min for 1.3h to obtain the compound rubber.
The preparation method of the dry-wet dual-purpose polishing grinding tool comprises the following steps:
1) treating the base material layer 1: heating the leveling layer to 175 ℃, uniformly paving the leveling layer on the upper surface of the flexible layer of the base material, uniformly extruding the leveling layer into the flexible layer of the base material by adopting a mirror roller with the pressure of 1kPa, coating the high-temperature-resistant resin on the lower surface of the flexible layer of the base material, and drying for 6min at the temperature of 138 ℃ to obtain a base material layer 1;
2) coating a primer: uniformly coating the primer on the upper surface of the substrate layer 1 obtained in the step 1) to obtain a semi-finished product A;
3) sand planting: adsorbing the abrasive material on the upper surface of the semi-finished product A obtained in the step 2) through high-voltage static electricity, heating to 80 ℃, pre-drying for 30min, and drying at the constant temperature of 80 ℃ for 60min to obtain a semi-finished product B;
4) coating and glue compounding: heating the semi-finished product B obtained in the step 3) to 80 ℃, pre-drying for 30min, uniformly coating compound glue on the upper surface of the semi-finished product B, drying at constant temperature of 80 ℃ for 60min to obtain a semi-finished product C, and rolling;
5) and (3) rewetting treatment: uniformly spraying a moisture regaining agent on the upper surface of the semi-finished product C, wherein the dosage of the moisture regaining agent is 3mL/m2；
6) Parking: naturally placing and drying the semi-finished product C subjected to the rewetting treatment in the step 5) to obtain the dry and wet dual-purpose polishing grinding tool.
The moisture regaining agent comprises the following raw materials in parts by weight:
2 portions of fatty acid ester sodium sulfate
0.8 part of second penetrant
0.5 part of fourth defoaming agent
95 parts of deionized water
0.8 part of a second leveling agent;
preferably, the second penetrating agent is fatty alcohol-polyoxyethylene ether; the fourth defoaming agent is polyoxyethylene polyoxypropylene pentaerythritol ether.
The moisture regaining agent is prepared by the following steps: adding deionized water into a storage barrel according to the weight parts, slowly adding a second leveling agent, fatty acid ester sodium sulfate and a fourth defoaming agent into the deionized water under the stirring state, and continuously stirring at normal temperature for 3.5min until the stirring is uniform to obtain a finished product of the moisture regaining agent.
Example 3
The utility model provides a wet or dry polishing grinding apparatus, includes substrate layer 1, coats the primer layer 2 of 1 upper surface of substrate layer, laminate in the abrasive material layer 3 of 2 upper surfaces of primer layer, coat the compound glue film 4 of 3 upper surfaces of abrasive material layer, and coat the surface coating 5 of 4 upper surfaces of compound glue film, substrate layer 1 is including the high temperature resistant layer of pressfitting in proper order, the flexible layer of substrate and leveling layer, the flexible layer of substrate is compound nylon, the high temperature resistant layer is made by high temperature resistant resin, high temperature resistant resin includes the raw materials of following parts by weight:
65 parts of first phenolic resin
25 parts of waterborne acrylic acid
7 parts of first reinforcing agent
7 parts of first coupling agent
1.0 part of first defoaming agent
0.8 part of first penetrant;
the first phenolic resin is thermosetting resol; the aqueous acrylic acid is VN 960; the first reinforcing agent is a reinforcing agent XY-5501 manufactured by Chusheng Weiqi chemical Co., Ltd.
Each part of the first coupling agent is aminopropyltrimethoxysilane.
Each part of the first defoaming agent is a mixture consisting of penetrating silicone oil, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether and polydimethylsiloxane according to the weight ratio of 1.0:0.6:0.3: 0.8.
Each part of the first penetrant is span.
Preferably, the high-temperature resistant resin is prepared by the following steps:
s1, weighing the first phenolic resin according to the parts by weight, adding the first phenolic resin into a reaction kettle, slowly adding the water-based acrylic acid and the first reinforcing agent under the stirring state, and continuously stirring at normal temperature for 30min to obtain a mixture A for later use;
s2, adding the first coupling agent, the first defoaming agent and the first penetrating agent into the mixture A obtained in the step S1 in a mixing and stirring manner, and continuing stirring for 1.5 hours at the speed of 350r/min to obtain the high-temperature-resistant resin.
The primer layer 2 is formed by coating a modified phenolic resin binder, and the modified phenolic resin binder is prepared by mixing A, B, C and D according to the weight ratio of 100:20:3: 20;
each part of the component A comprises the following components in parts by weight: 60 parts of a second phenolic resin and 40 parts of polyurethane; the polyurethane is aqueous polyurethane emulsion U56 produced by Guangzhou Haoyiei chemical technology limited, and the solid content of the polyurethane is 30 percent; each part of the component B is water;
each part of the C component comprises the following components in parts by weight: 3 parts of a silane coupling agent, 1.5 parts of an emulsifier and 1.0 part of a second defoaming agent; each portion of the D component is a first filler.
Each part of the silane coupling agent is a mixture of aminopropyltriethoxysilane, aminopropyltrimethoxysilane and triglycidyl ether oxypropyltrimethoxysilane according to the weight ratio of 0.9:0.5: 0.2.
Each part of the first filler is a mixture of cryolite, calcium carbonate and talcum powder according to the weight ratio of 0.6:1.0: 0.3;
each part of the second defoaming agent is a mixture of emulsified silicone oil, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether and polydimethylsiloxane according to the weight ratio of 1.0:0.8:0.6: 0.3.
Preferably, the compound glue layer 4 is formed by coating compound glue, and the compound glue comprises the following raw materials in parts by weight:
90 parts of third phenolic resin
Second coupling agent 3 parts
Third defoaming agent 1.0 part
20 portions of second filler
1.3 parts of a first leveling agent;
the third phenolic resin is thermosetting resol phenolic resin with the solid content of 80 percent; the first leveling agent is BYK-333.
Each part of the second coupling agent is a mixture of aminopropyltriethoxysilane, aminopropyltrimethoxysilane and triglycidyl ether oxypropyltrimethoxysilane according to the weight ratio of 1.0:0.8: 0.3.
Each part of the third defoaming agent is polyoxyethylene polyoxypropylene ether.
Preferably, the compound adhesive is prepared by the following steps:
e1, weighing a third phenolic resin according to the weight parts, adding the third phenolic resin into the reaction kettle, slowly adding the first leveling agent and the second coupling agent under the stirring state, and continuously stirring for 30min at normal temperature to obtain a mixture A for later use;
e2, uniformly mixing and stirring the second filler and the third defoaming agent, adding the mixture into the mixture A obtained in the step S1, and continuously stirring the mixture for 1.5 hours at the speed of 350r/min to obtain the compound rubber.
The preparation method of the dry-wet dual-purpose polishing grinding tool comprises the following steps:
1) treating the base material layer 1: heating the leveling layer to 200 ℃, uniformly paving the leveling layer on the upper surface of the flexible layer of the base material, uniformly extruding the leveling layer into the flexible layer of the base material by adopting a mirror roller with the pressure of 1kPa, coating the high-temperature-resistant resin on the lower surface of the flexible layer of the base material, and drying for 8min at the temperature of 145 ℃ to obtain a base material layer 1;
2) coating a primer: uniformly coating the primer on the upper surface of the substrate layer 1 obtained in the step 1) to obtain a semi-finished product A;
3) sand planting: adsorbing the abrasive material on the upper surface of the semi-finished product A obtained in the step 2) through high-voltage static electricity, heating to 95 ℃, pre-drying for 40min, adjusting the temperature to 105 ℃, and drying for 80min to obtain a semi-finished product B;
4) coating and glue compounding: heating the semi-finished product B obtained in the step 3) to 95 ℃ for pre-drying for 40min, uniformly coating compound glue on the upper surface of the semi-finished product B, adjusting the temperature to 105 ℃ for drying for 80min to obtain a semi-finished product C, and rolling;
5) and (3) rewetting treatment: uniformly spraying a moisture regaining agent on the upper surface of the semi-finished product C, wherein the dosage of the moisture regaining agent is 6mL/m2；
6) Parking: naturally placing and drying the semi-finished product C subjected to the rewetting treatment in the step 5) to obtain the dry and wet dual-purpose polishing grinding tool.
The moisture regaining agent comprises the following raw materials in parts by weight:
3 portions of fatty acid ester sodium sulfate
1.3 parts of second penetrant
Fourth antifoaming agent 1.0 part
100 portions of deionized water
1.3 parts of a second leveling agent;
the preferable second penetrating agent is fatty alcohol-polyoxyethylene ether; the fourth defoaming agent is polydimethylsiloxane.
The moisture regaining agent is prepared by the following steps: adding deionized water into a storage barrel according to the weight parts, slowly adding a second leveling agent, fatty acid ester sodium sulfate and a fourth defoaming agent into the deionized water under the stirring state, and continuously stirring for 4min at normal temperature until the stirring is uniform to obtain a finished product of the moisture regaining agent.
Example 4
The utility model provides a wet or dry polishing grinding apparatus, includes substrate layer 1, coats the primer layer 2 of 1 upper surface of substrate layer, laminate in the abrasive material layer 3 of 2 upper surfaces of primer layer, coat the compound gum layer 4 of 3 upper surfaces of abrasive material layer, and coat the surface coating 5 of compound gum layer 4 upper surface, substrate layer 1 is including the high temperature resistant layer, the flexible layer of substrate and the leveling layer of pressfitting in proper order, the flexible layer of substrate is the nylon membrane, the high temperature resistant layer is made by high temperature resistant resin, high temperature resistant resin includes the raw materials of following parts by weight:
73 parts of first phenolic resin
28 parts of water-based acrylic acid
8 parts of first reinforcing agent
8 parts of first coupling agent
1.5 parts of first defoaming agent
0.9 part of first penetrant;
the first phenolic resin is thermosetting resol; the aqueous acrylic acid is VN 960; the first reinforcing agent is a reinforcing agent XY-5501 manufactured by Chusheng Weiqi chemical Co., Ltd.
Each part of the first coupling agent is aminopropyltrimethoxysilane.
Each part of the first defoaming agent is a mixture consisting of penetrating silicone oil, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether and polydimethylsiloxane according to the weight ratio of 1.1:0.7:0.4: 0.9.
Each serving of the first penetrant is tween.
Preferably, the high-temperature resistant resin is prepared by the following steps:
s1, weighing the first phenolic resin according to the parts by weight, adding the first phenolic resin into a reaction kettle, slowly adding the water-based acrylic acid and the first reinforcing agent under the stirring state, and continuously stirring at normal temperature for 33min to obtain a mixture A for later use;
s2, adding the first coupling agent, the first defoaming agent and the first penetrating agent into the mixture A obtained in the step S1 in a mixing and stirring manner, and continuing stirring for 1.8 hours at the speed of 375r/min to obtain the high-temperature-resistant resin.
The primer layer 2 is formed by coating a modified phenolic resin binder, and the modified phenolic resin binder is prepared by mixing A, B, C and D according to the weight ratio of 100:30:4: 30;
each part of the component A comprises the following components in parts by weight: 65 parts of a second phenolic resin and 45 parts of polyurethane; the polyurethane is aqueous polyurethane emulsion U56 produced by Guangzhou Haoyiei chemical technology Limited, and the solid content is 35%; each part of the component B is water;
each part of the C component comprises the following components in parts by weight: 4 parts of a silane coupling agent, 1.3 parts of an emulsifier and 1.5 parts of a second defoaming agent; each portion of the D component is a first filler.
Each part of the silane coupling agent is a mixture of aminopropyltriethoxysilane, aminopropyltrimethoxysilane and triglycidyl ether oxypropyltrimethoxysilane according to the weight ratio of 1.1:0.7: 0.4.
Each part of the first filler is a mixture of cryolite, calcium carbonate and talcum powder according to the weight ratio of 0.7:1.1: 0.4;
each part of the second defoaming agent is a mixture of emulsified silicone oil, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether and polydimethylsiloxane according to the weight ratio of 1.1:0.9:0.7: 0.4.
Preferably, the compound glue layer 4 is formed by coating compound glue, and the compound glue comprises the following raw materials in parts by weight:
95 parts of third phenolic resin
4 portions of second coupling agent
Third defoaming agent 1.5 parts
30 portions of second filler
1.8 parts of a first leveling agent;
the third phenolic resin is thermosetting resol phenolic resin with the solid content of 83 percent; the first leveling agent is BYK-333.
Each part of the second coupling agent is a mixture of aminopropyltriethoxysilane, aminopropyltrimethoxysilane and triglycidyl ether oxypropyltrimethoxysilane according to the weight ratio of 1.1:0.9: 0.4.
Each part of the third defoaming agent is polyoxypropylene polyoxyethylene glycerol ether.
Preferably, the compound adhesive is prepared by the following steps:
e1, weighing a third phenolic resin according to the weight parts, adding the third phenolic resin into the reaction kettle, slowly adding the first leveling agent and the second coupling agent under the stirring state, and continuously stirring for 33min at normal temperature to obtain a mixture A for later use;
e2, uniformly mixing and stirring the second filler and the third defoaming agent, adding the mixture into the mixture A obtained in the step S1, and continuously stirring the mixture for 1.8 hours at the speed of 375r/min to obtain the compound rubber.
The preparation method of the dry-wet dual-purpose polishing grinding tool comprises the following steps:
1) treating the base material layer 1: heating the leveling layer to 225 ℃, uniformly paving the leveling layer on the upper surface of the flexible layer of the base material, uniformly extruding the leveling layer into the flexible layer of the base material by adopting a mirror roller with the pressure of 1kPa, coating the high-temperature-resistant resin on the lower surface of the flexible layer of the base material, and drying for 9min at the temperature of 152 ℃ to obtain a base material layer 1;
2) coating a primer: uniformly coating the primer on the upper surface of the substrate layer 1 obtained in the step 1) to obtain a semi-finished product A;
3) sand planting: adsorbing the abrasive material on the upper surface of the semi-finished product A obtained in the step 2) through high-voltage static electricity, heating to 110 ℃, pre-drying for 50min, adjusting the temperature to 125 ℃, and drying for 100min to obtain a semi-finished product B;
4) coating and glue compounding: heating the semi-finished product B obtained in the step 3) to 110 ℃ for pre-drying for 50min, uniformly coating compound glue on the upper surface of the semi-finished product B, adjusting the temperature to 125 ℃ for drying for 100min to obtain a semi-finished product C, and rolling;
5) and (3) rewetting treatment: uniformly spraying a moisture regaining agent on the upper surface of the semi-finished product C, wherein the dosage of the moisture regaining agent is 8mL/m2；
6) Parking: naturally placing and drying the semi-finished product C subjected to the rewetting treatment in the step 5) to obtain the dry and wet dual-purpose polishing grinding tool.
The moisture regaining agent comprises the following raw materials in parts by weight:
fatty acid ester sodium sulfate 4 parts
1.7 parts of second penetrant
Fourth antifoaming agent 1.5 parts
105 portions of deionized water
1.7 parts of a second leveling agent;
the preferable second penetrating agent is fatty alcohol-polyoxyethylene ether; the fourth defoaming agent is polyoxyethylene polyoxypropylene ether.
The moisture regaining agent is prepared by the following steps: adding deionized water into a storage barrel according to the weight parts, slowly adding a second leveling agent, fatty acid ester sodium sulfate and a fourth defoaming agent into the deionized water under the stirring state, and continuously stirring at normal temperature for 4.5min until the stirring is uniform to obtain a finished product of the moisture regaining agent.
Example 5
The utility model provides a wet or dry polishing grinding apparatus, includes substrate layer 1, coats the primer layer 2 of 1 upper surface of substrate layer, laminate in the abrasive material layer 3 of 2 upper surfaces of primer layer, coat the compound glue film 4 of 3 upper surfaces of abrasive material layer, and coat the surface coating 5 of 4 upper surfaces of compound glue film, substrate layer 1 is including the high temperature resistant layer of pressfitting in proper order, the flexible layer of substrate and leveling layer, the flexible layer of substrate is compound nylon, the high temperature resistant layer is made by high temperature resistant resin, high temperature resistant resin includes the raw materials of following parts by weight:
80 parts of first phenolic resin
30 parts of waterborne acrylic acid
10 portions of first reinforcing agent
10 portions of first coupling agent
2.0 parts of first defoaming agent
1.0 part of first penetrant;
the first phenolic resin is thermosetting resol; the aqueous acrylic acid is VN 960; the first reinforcing agent is a reinforcing agent XY-5501 manufactured by Chusheng Weiqi chemical Co., Ltd.
Each part of the first coupling agent is aminopropyltrimethoxysilane.
Each part of the first defoaming agent is a mixture consisting of penetrating silicone oil, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether and polydimethylsiloxane according to the weight ratio of 1.2:0.8:0.5: 1.0.
Each part of the first penetrant is span.
Preferably, the high-temperature resistant resin is prepared by the following steps:
s1, weighing the first phenolic resin according to the parts by weight, adding the first phenolic resin into a reaction kettle, slowly adding the water-based acrylic acid and the first reinforcing agent under the stirring state, and continuously stirring at normal temperature for 35min to obtain a mixture A for later use;
s2, adding the first coupling agent, the first defoaming agent and the first penetrating agent into the mixture A obtained in the step S1 in a mixing and stirring manner, and continuing stirring for 2 hours at the speed of 400r/min to obtain the high-temperature-resistant resin.
The primer layer 2 is formed by coating a modified phenolic resin binder, and the modified phenolic resin binder is prepared by mixing A, B, C and D according to the weight ratio of 100:40:5: 40;
each part of the component A comprises the following components in parts by weight: 70 parts of a second phenolic resin and 50 parts of polyurethane; the polyurethane is aqueous polyurethane emulsion U56 produced by Guangzhou Haoyiei chemical technology ltd, and the solid content is 40%; each part of the component B is water;
each part of the C component comprises the following components in parts by weight: 5 parts of a silane coupling agent, 3.0 parts of an emulsifier and 2.0 parts of a second defoaming agent; each portion of the D component is a first filler.
Each part of the silane coupling agent is a mixture of aminopropyltriethoxysilane, aminopropyltrimethoxysilane and triglycidyl ether oxypropyltrimethoxysilane according to the weight ratio of 1.2:0.8: 0.5.
Each part of the first filler is a mixture of cryolite, calcium carbonate and talcum powder according to the weight ratio of 0.8:1.2: 0.5;
each portion of the first filler is cryolite.
Each part of the second defoaming agent is a mixture of emulsified silicone oil, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether and polydimethylsiloxane according to the weight ratio of 1.2:1.0:0.8: 0.5.
Preferably, the compound glue layer 4 is formed by coating compound glue, and the compound glue comprises the following raw materials in parts by weight:
third phenolic resin 100 parts
Second coupling agent 5 parts
2.0 parts of third defoaming agent
40 portions of second filler
2.0 parts of a first leveling agent;
the third phenolic resin is thermosetting resol phenolic resin with the solid content of 85 percent; the first leveling agent is BYK-333.
Each part of the second coupling agent is a mixture of aminopropyltriethoxysilane, aminopropyltrimethoxysilane and triglycidyl ether oxypropyltrimethoxysilane according to the weight ratio of 1.2:1.0: 0.5.
Each part of the third defoaming agent is polyoxypropylene glycerol ether.
Preferably, the compound adhesive is prepared by the following steps:
e1, weighing a third phenolic resin according to the weight parts, adding the third phenolic resin into the reaction kettle, slowly adding the first leveling agent and the second coupling agent under the stirring state, and continuously stirring at normal temperature for 35min to obtain a mixture A for later use;
e2, uniformly mixing and stirring the second filler and the third defoaming agent, adding the mixture into the mixture A obtained in the step S1, and continuously stirring the mixture for 2 hours at the speed of 400r/min to obtain the compound rubber.
The preparation method of the dry-wet dual-purpose polishing grinding tool comprises the following steps:
1) treating the base material layer 1: heating the leveling layer to 250 ℃, uniformly paving the leveling layer on the upper surface of the flexible layer of the base material, uniformly extruding the leveling layer into the flexible layer of the base material by adopting a mirror roller with the pressure of 1kPa, coating the high-temperature-resistant resin on the lower surface of the flexible layer of the base material, and drying for 10min at the temperature of 160 ℃ to obtain a base material layer 1;
2) coating a primer: uniformly coating the primer on the upper surface of the substrate layer 1 obtained in the step 1) to obtain a semi-finished product A;
3) sand planting: adsorbing the abrasive material on the upper surface of the semi-finished product A obtained in the step 2) through high-voltage static electricity, heating to 125 ℃, pre-drying for 60min, adjusting the temperature to 135 ℃, and drying for 120min to obtain a semi-finished product B;
4) coating and glue compounding: heating the semi-finished product B obtained in the step 3) to 125 ℃ for pre-drying for 60min, uniformly coating compound glue on the upper surface of the semi-finished product B, adjusting the temperature to 135 ℃ for drying for 120min to obtain a semi-finished product C, and rolling;
5) and (3) rewetting treatment: uniformly spraying a moisture regaining agent on the upper surface of the semi-finished product C, wherein the dosage of the moisture regaining agent is 12mL/m2；
6) Parking: naturally placing and drying the semi-finished product C subjected to the rewetting treatment in the step 5) to obtain the dry and wet dual-purpose polishing grinding tool.
The moisture regaining agent comprises the following raw materials in parts by weight:
5 parts of fatty acid ester sodium sulfate
2.0 parts of second penetrant
Fourth antifoaming agent 2.0 parts
110 portions of deionized water
2.0 parts of a second leveling agent;
the preferable second penetrating agent is fatty alcohol-polyoxyethylene ether; the fourth defoaming agent is permeable silicone oil.
The moisture regaining agent is prepared by the following steps: adding deionized water into a storage barrel according to the weight parts, slowly adding a second leveling agent, fatty acid ester sodium sulfate and a fourth defoaming agent into the deionized water under the stirring state, and continuously stirring for 5min at normal temperature until the stirring is uniform to obtain a finished product of the moisture regaining agent.
Comparative example 1
This comparative example differs from example 1 above in that: the high temperature resistant layer of this comparative example was made of an epoxy resin e44 aqueous high temperature resistant modified epoxy resin produced by Jining HuaKai resin Co. The remainder of this comparative example is the same as example 1 and will not be described again here.
Comparative example 2
This comparative example differs from example 3 above in that: the compound rubber layer 4 of this comparative example was prepared by coating 2402 phenol resin tackifier, produced by Guangzhou Lianben rubber raw materials trade Co., Ltd. The remainder of this comparative example is the same as example 3 and will not be described again here.
Comparative example 3
This comparative example differs from example 5 above in that: the substrate layer 1 of this comparative example was made of nylon. The remainder of this comparative example is the same as example 5 and will not be described again here.
The wet and dry polishing abrasive tools prepared in examples 1 to 5 and comparative examples 1 to 3 were subjected to performance tests, and the results are shown in Table 1:
TABLE 1
Item Folding endurance (second) Tensile Strength (kN/m) Elongation at Break (%) Tensile energy absorption (J/m 2)
Example 1 20 10.6 3.12 603
Example 2 21 11.7 3.13 608
Example 3 22 12.3 3.32 612
Example 4 20 11.5 3.24 611
Example 5 21 11.9 3.31 609
Comparative example 1 12 7 1.56 402
Comparative example 2 14 6 1.74 436
Comparative example 3 8 4 0.85 387
From the foregoing, it can be seen that the dry and wet dual-purpose polishing abrasive tool of the present invention has excellent folding endurance, tensile strength, elongation at break, and tensile energy absorption. The substrate layer 1 adopts the high temperature resistant layer, the substrate flexible layer and the leveling layer structure which are sequentially laminated, the laminating layer 4 formed by laminating and coating the laminating adhesive is adopted, the high temperature resistant layer formed by coating the high temperature resistant resin is adopted, various performances of the dry-wet dual-purpose polishing grinding tool can be improved, the dry-wet dual-purpose performance of the conventional product can be ensured, the full water-based performance in the production process can be realized, and the dry-wet dual-purpose polishing grinding tool has the advantages of good flexibility and grinding efficiency, low production cost and environment friendliness.
The above-described embodiments are preferred implementations of the present invention, and the present invention may be implemented in other ways without departing from the spirit of the present invention.

Claims (8)

1. A wet and dry dual-purpose polishing grinding apparatus is characterized in that: including the substrate layer, coat in the primer layer of substrate layer upper surface, laminate in the abrasive material layer of primer layer upper surface, coat in the rubberizing layer of abrasive material layer upper surface, and coat in the surface coating of rubberizing layer upper surface, the substrate layer is including the high temperature resistant layer of pressfitting in proper order, the flexible layer of substrate and leveling layer, the high temperature resistant layer is made by high temperature resistant resin, high temperature resistant resin includes following parts by weight's raw materials:
50-80 parts of first phenolic resin
20-30 parts of water-based acrylic acid
5-10 parts of first reinforcing agent
5-10 parts of first coupling agent
0.1 to 2.0 portions of first defoaming agent
0.5-1.0 part of first penetrant;
each part of the first coupling agent is any one of aminopropyltriethoxysilane, aminopropyltrimethoxysilane and triglycidyl ether oxypropyltrimethoxysilane;
each part of the first defoaming agent is at least one of penetrating silicone oil, a high-carbon alcohol fatty acid ester compound, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether, polyoxypropylene polyoxyethylene glycerol ether and polydimethylsiloxane;
the high-temperature resistant resin is prepared by the following steps:
s1, weighing the first phenolic resin according to the parts by weight, adding the first phenolic resin into a reaction kettle, slowly adding the water-based acrylic acid and the first reinforcing agent under the stirring state, and continuously stirring at normal temperature for 25-35min to obtain a mixture A for later use;
s2, adding the first coupling agent, the first defoaming agent and the first penetrating agent into the mixture A obtained in the step S1 through mixing and stirring, and continuing stirring for 1-2 hours at the speed of 300-400r/min to obtain the high-temperature resistant resin.
2. The dual-purpose dry and wet polishing abrasive tool of claim 1, wherein: the primer layer is formed by coating a modified phenolic resin binder, and the modified phenolic resin binder is prepared by mixing A, B, C and D according to the weight ratio of 100:1-40:0.5-5: 5-40;
each part of the component A comprises the following components in parts by weight: 50-70 parts of second phenolic resin and 30-50 parts of polyurethane; the component B is water;
each part of the C component comprises the following components in parts by weight: 1-5 parts of silane coupling agent, 0.2-3.0 parts of emulsifier and 0.2-2.0 parts of second defoaming agent; the component D is a first filler.
3. A wet and dry polishing abrasive tool as set forth in claim 2, wherein: each part of the silane coupling agent is at least one of aminopropyltriethoxysilane, aminopropyltrimethoxysilane and triglycidyl ether oxypropyltrimethoxysilane; each part of the first filler is at least one of cryolite, calcium carbonate, wollastonite and talcum powder.
4. A wet and dry polishing abrasive tool as set forth in claim 2, wherein: each part of the second defoaming agent is at least one of emulsified silicone oil, a high-carbon alcohol fatty acid ester compound, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether, polyoxypropylene polyoxyethylene glycerol ether and polydimethylsiloxane.
5. The dual-purpose dry and wet polishing abrasive tool of claim 1, wherein: the compound glue layer is formed by coating compound glue, and the compound glue comprises the following raw materials in parts by weight:
80-100 parts of third phenolic resin
1-5 parts of second coupling agent
0.1-2.0 parts of third defoaming agent
5-40 parts of second filler
0.5-2.0 parts of first leveling agent.
6. The dual-purpose dry and wet polishing abrasive tool of claim 5, wherein: each part of the second coupling agent is any one of aminopropyltriethoxysilane, aminopropyltrimethoxysilane and triglycidyl ether oxypropyltrimethoxysilane; each part of the third defoaming agent is at least one of penetrating silicone oil, a high-carbon alcohol fatty acid ester compound, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether, polyoxypropylene polyoxyethylene glycerol ether and polydimethylsiloxane.
7. The dual-purpose dry and wet polishing abrasive tool of claim 5, wherein: the compound adhesive is prepared by the following steps:
e1, weighing a third phenolic resin according to the weight parts, adding the third phenolic resin into the reaction kettle, slowly adding the first leveling agent and the second coupling agent under the stirring state, and continuously stirring at normal temperature for 25-35min to obtain a mixture A for later use;
e2, uniformly mixing and stirring the second filler and the third defoaming agent, adding the mixture into the mixture A obtained in the step S1, and continuously stirring the mixture for 1 to 2 hours at the speed of 300-400r/min to obtain the compound adhesive.
8. A method of preparing a wet and dry polishing abrasive tool according to any one of claims 1 to 7, comprising: the preparation method comprises the following steps:
1) treating a base material layer: heating the leveling layer to 150-;
2) coating a primer: uniformly coating the primer on the upper surface of the substrate layer obtained in the step 1) to obtain a semi-finished product A;
3) sand planting: adsorbing the abrasive material on the upper surface of the semi-finished product A obtained in the step 2) through high-voltage static electricity, heating to 65-125 ℃, pre-drying for 20-60min, adjusting the temperature to 60-135 ℃, and drying for 40-120min to obtain a semi-finished product B;
4) coating and glue compounding: heating the semi-finished product B obtained in the step 3) to 65-125 ℃ for pre-drying for 20-60min, uniformly coating compound glue on the upper surface of the semi-finished product B, adjusting the temperature to 60-135 ℃ for drying for 40-120min to obtain a semi-finished product C, and rolling;
5) and (3) rewetting treatment: uniformly spraying a moisture regaining agent on the upper surface of the semi-finished product C, wherein the dosage of the moisture regaining agent is 3-12mL/m2；
6) Parking: naturally placing and drying the semi-finished product C subjected to the rewetting treatment in the step 5) to obtain the dry and wet dual-purpose polishing grinding tool.
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CN113118981B (en) * 2021-05-12 2022-06-14 东莞金太阳研磨股份有限公司 Environment-friendly anti-blocking abrasive paper and preparation method thereof

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