CN110712143A - Tensile white mill leather and production method thereof - Google Patents

Tensile white mill leather and production method thereof Download PDF

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CN110712143A
CN110712143A CN201911082251.8A CN201911082251A CN110712143A CN 110712143 A CN110712143 A CN 110712143A CN 201911082251 A CN201911082251 A CN 201911082251A CN 110712143 A CN110712143 A CN 110712143A
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epoxy resin
layer
parts
mixture
nano
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CN110712143B (en
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李加海
谭鸿
李元祥
杨惠明
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Anhui Hechen New Material Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/001Manufacture of flexible abrasive materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/02Backings, e.g. foils, webs, mesh fabrics
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/08Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2227Oxides; Hydroxides of metals of aluminium
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2237Oxides; Hydroxides of metals of titanium
    • C08K2003/2241Titanium dioxide
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2296Oxides; Hydroxides of metals of zinc
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    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24Acids; Salts thereof
    • C08K3/26Carbonates; Bicarbonates
    • C08K2003/265Calcium, strontium or barium carbonate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
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    • C08K2201/003Additives being defined by their diameter
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    • 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
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    • C08L2205/00Polymer mixtures characterised by other features
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract

The invention discloses a tensile white mill leather and a production method thereof, and the tensile white mill leather comprises a polishing surface, a material-resistant layer, a tensile layer, a base material and an anti-slip glue layer which are sequentially arranged from top to bottom, wherein the polishing surface, a grinding material layer, the tensile layer, the base material and the anti-slip glue layer are sequentially and compositely connected together, nano aggregated particles and a water-based epoxy resin glue are mixed and then placed in an oxygen-enriched state to be stirred for 24-48 hours, oxide in the nano aggregated particles reacts with oxygen to form a hollowed-out oxide film net layer, and the net layer is positioned among the polishing surface, the grinding material layer, the base material and the anti-slip glue layer to support the polishing surface, so that the white mill leather; the preparation method is simple, safe, environment-friendly and easy to realize industrial continuous production.

Description

Tensile white mill leather and production method thereof
Technical Field
The invention relates to the technical field of polishing materials, in particular to a tensile white buff and a production method thereof.
Background
The polishing cloth is formed by coating the precision grinding micro powder on the surface of a high-strength wear-resistant cloth substrate by adopting an ultra-precision coating technology and is widely used for cleaning treatment before attaching a polarizer in a TFT-LCD (thin film transistor liquid Crystal display) process. The polishing leather mainly comprises polyurethane polishing leather, white polishing leather, damping cloth, asphalt polishing cloth, wool wheels and the like, the polyurethane polishing leather is mainly used for polishing crystal glass, watch lenses, camera glass, mobile phone glass and the like, contains rare earth materials such as cerium dioxide and the like, has the hardness of more than 90 degrees, effectively protects the glass from being easy to step on and leads angles in the process of polishing the glass at high speed, is durable and high in efficiency, and is one of the currently accepted polishing materials which cannot be acquired. The white buff is one of the polishing cloths, and is stretched and deformed by a frictional force during polishing.
Disclosure of Invention
Aiming at the defects of the problems, the invention provides the tensile white mill leather and the production method thereof, and the hollow-out alumina net layer is formed by the reaction of the nano aggregated particles and oxygen in the air, so that the tensile property of the white mill leather is strong, and the white mill leather is not easy to deform; the preparation method is simple, safe, environment-friendly and easy to realize industrial continuous production.
In order to achieve the purpose, the invention provides the following technical scheme:
a tensile white mill leather comprises a polishing surface, a material-resistant layer, a tensile layer, a base material and an anti-slip glue layer which are sequentially arranged from top to bottom; the polishing surface, the abrasive layer, the tensile layer, the base material and the anti-skid adhesive layer are sequentially and compositely connected together from top to bottom; the thickness of the base material is 1-3mm, and the tensile layer comprises the following raw materials in parts by weight:
20-30 parts of a first aqueous epoxy resin adhesive;
3-5 parts of a first filler;
1-10 parts of first nano aggregate particles;
1-10 parts of first polyurethane;
0.1-1 part of first aramid fiber;
the waterborne epoxy resin adhesive is characterized in that acrylic acid and maleic anhydride monomers are grafted in an epoxy resin molecular chain, a tertiary amine or quaternary ammonium base is contained in the epoxy resin molecular chain, or a hydrophilic polyoxyethylene group is connected on the epoxy resin molecular chain, and two or more epoxy groups are ensured to be contained.
The filler can be one or a mixture of more than two of organic silicon resin, silicon powder, graphene, polyamide-6 or 66 synthetic fibers.
The nanometer aggregation particle has the size of 0.01-50 microns and comprises the components of a mixture of titanium dioxide, zinc oxide, calcium carbonate and aluminum oxide, wherein the titanium dioxide accounts for 10-20%, the aluminum oxide accounts for 20-30% and the zinc oxide accounts for 5-30%.
The polyurethane is a polyurethane glue containing at least one urethane group, isocyanate group or isocyano group and a urethane group.
The aramid fiber is poly-p-phenylene terephthalamide with para-position structure of amide group connected on benzene ring.
Preferably, the polishing surface and the abrasive layer are prepared from the following raw materials in parts by weight:
20-30 parts of a second aqueous epoxy resin adhesive;
3-5 parts of a second filler;
1-10 parts of second nano aggregate particles;
1-10 parts of second polyurethane;
0.1-1 part of second aramid fiber;
5-15 parts of second nano aggregated silicon oxide;
the waterborne epoxy resin adhesive is characterized in that acrylic acid and maleic anhydride monomers are grafted in an epoxy resin molecular chain, a tertiary amine or quaternary ammonium base is contained in the epoxy resin molecular chain, or a hydrophilic polyoxyethylene group is connected on the epoxy resin molecular chain, and two or more epoxy groups are ensured to be contained.
The filler can be one or a mixture of more than two of organic silicon resin, silicon powder, graphene, polyamide-6 or 66 synthetic fibers.
The nanometer aggregation particle has the size of 0.01-50 microns and comprises the components of a mixture of titanium dioxide, zinc oxide, calcium carbonate and aluminum oxide, wherein the titanium dioxide accounts for 10-20%, the aluminum oxide accounts for 20-30% and the zinc oxide accounts for 5-30%.
The polyurethane is a polyurethane glue containing at least one urethane group, isocyanate group or isocyano group and a urethane group.
The aramid fiber is poly-p-phenylene terephthalamide with para-position structure of amide group connected on benzene ring.
Preferably, the nano aggregated silica is a mixture of natural silica and spherical fused silica.
Preferably, the raw materials of the anti-slip glue layer comprise the following components in parts by weight:
20-30 parts of a third aqueous epoxy resin adhesive;
3-5 parts of a third filler;
1-10 parts of third nano aggregate particles;
1-10 parts of third polyurethane;
0.1-1 part of a third aramid fiber;
5-15 parts of a third methyl vinyl silicone rubber;
the waterborne epoxy resin adhesive is characterized in that acrylic acid and maleic anhydride monomers are grafted in an epoxy resin molecular chain, a tertiary amine or quaternary ammonium base is contained in the epoxy resin molecular chain, or a hydrophilic polyoxyethylene group is connected on the epoxy resin molecular chain, and two or more epoxy groups are ensured to be contained.
The filler can be one or a mixture of more than two of organic silicon resin, silicon powder, graphene, polyamide-6 or 66 synthetic fibers.
The nanometer aggregation particle has the size of 0.01-50 microns and comprises the components of a mixture of titanium dioxide, zinc oxide, calcium carbonate and aluminum oxide, wherein the titanium dioxide accounts for 10-20%, the aluminum oxide accounts for 20-30% and the zinc oxide accounts for 5-30%.
The polyurethane is a polyurethane glue containing at least one urethane group, isocyanate group or isocyano group and a urethane group.
The aramid fiber is poly-p-phenylene terephthalamide with para-position structure of amide group connected on benzene ring.
Preferably, the methyl vinyl silicone rubber is formed by copolymerizing dimethyl siloxane and vinyl siloxane, and the vinyl content is 0.1-0.3%.
Preferably, the substrate is one or a mixture of two or more of glass fiber, carbon fiber, cotton, hemp, paper and metal.
A production method of tensile white mill leather is characterized in that: the method comprises the following steps:
s1: uniformly mixing the proportioned first filler, first polyurethane and first aramid fiber, and then carrying out banburying at the temperature of 80-200 ℃ for 5-10 minutes to obtain a banburying product; mixing the nano aggregated particles and the water-based epoxy resin adhesive, placing the mixture in an oxygen-enriched state, stirring for 24-48 hours, coating the mixture on the surface of an internal mixing product after stirring, placing the mixture in an oven for vulcanization, wherein the temperature of the oven is 100-160 ℃, and the time is 5-10 minutes, and finally obtaining the tensile layer.
S2: the material of the polished surface and the heat-resistant layer is mixed and coated on one side of the vulcanized tensile layer, the other side of the tensile layer is attached to the base material, and vulcanization is carried out for 5-20 minutes at the temperature of 100-160 ℃;
s3: and (3) mixing the raw materials of the anti-slip adhesive layer, coating the mixture on the vulcanized base material surface in the step two, and vulcanizing at the temperature of 100-160 ℃ for 5-20 minutes to obtain the white mill leather.
Compared with the prior art, the invention has the following beneficial effects:
the tensile white mill leather provided by the invention comprises a polishing surface, a material-resistant layer, a tensile layer, a base material and an anti-slip glue layer which are sequentially arranged from top to bottom, wherein nano aggregated particles and a water-based epoxy resin glue are mixed and then placed in an oxygen-enriched state to be stirred for 24-48 hours, wherein oxides in the nano aggregated particles react with oxygen to form a hollowed-out oxide film net layer, and the net layer is positioned among the polishing surface, the abrasive layer, the base material and the anti-slip glue layer to support the polishing surface, so that the white mill leather has strong tensile property and is not easy to deform; the preparation method is simple, safe, environment-friendly and easy to realize industrial continuous production.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a production flow chart of the present invention.
In the figure: 1. polishing the surface; 2. a refractory layer; 3. a tensile layer; 4. a substrate; 5. and (4) an anti-slip adhesive layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
referring to fig. 1, a tensile white mill leather comprises a polishing surface 1, a material-resistant layer 2, a tensile layer 3, a substrate 4 and an anti-slip glue layer 5, which are sequentially arranged from top to bottom, wherein the thickness of the substrate 4 is 1-3 mm.
The tensile layer 3 comprises the following raw materials in parts by weight: 46g of water-based epoxy resin adhesive, wherein a molecular chain of the epoxy resin is connected with a hydrophilic polyoxyethylene group and contains two epoxy groups; the filler is 10g of organic silicon resin; 5g of 0.01-50 micron nano-aggregate particles; 6g of a polyurethane containing one urethane group; 2g of poly (p-phenylene terephthalamide).
The polishing surface 1 and the abrasive layer 2 are prepared from the following raw materials in parts by weight:
the tensile layer 3 comprises the following raw materials in parts by weight: 46g of water-based epoxy resin adhesive, wherein a molecular chain of the epoxy resin is connected with a hydrophilic polyoxyethylene group and contains two epoxy groups; the filler is 10g of organic silicon resin; 5g of 0.01-50 micron nano-aggregate particles; 6g of a polyurethane containing one urethane group; 2g of poly (p-phenylene terephthalamide) and 12g of nano-aggregated silicon oxide.
The anti-slip glue layer 5 comprises the following raw materials in parts by weight:
the tensile layer 3 comprises the following raw materials in parts by weight: 46g of water-based epoxy resin adhesive, wherein a molecular chain of the epoxy resin is connected with a hydrophilic polyoxyethylene group and contains two epoxy groups; the filler is 10g of organic silicon resin; 5g of 0.01-50 micron nano-aggregate particles; 6g of a polyurethane containing one urethane group; 2g of poly-p-phenylene terephthamide and 12g of methyl vinyl silicone rubber, wherein the vinyl content is 0.2%.
The substrate 3 is one or a mixture of two or more of glass fiber, carbon fiber, cotton, hemp, paper and metal.
A production method of tensile white mill leather comprises the following steps:
s1: uniformly mixing the proportioned first filler, first polyurethane and first aramid fiber, and then carrying out banburying at the temperature of 80-200 ℃ for 5-10 minutes to obtain a banburying product; mixing the nano aggregated particles and the water-based epoxy resin adhesive, placing the mixture in an oxygen-enriched state, stirring for 24-48 hours, coating the mixture on the surface of an internal mixing product after stirring, placing the mixture in an oven for vulcanization, wherein the temperature of the oven is 100-160 ℃, and the time is 5-10 minutes, and finally obtaining the tensile layer 3.
S2: the polishing surface 1 and the heat-resistant layer 2 are mixed according to the raw materials and then coated on one side of a vulcanized tensile layer 3, the other side of the tensile layer 3 is attached to a base material 4, and vulcanization is carried out for 5-20 minutes at the temperature of 100-160 ℃;
s3: and (3) mixing the raw materials of the anti-slip glue layer 5, coating the mixture on the vulcanized base material 4 surface in the step two, and vulcanizing at the temperature of 100-160 ℃ for 5-20 minutes to obtain the white mill leather.
Example 2:
the difference between the embodiment 2 and the embodiment 1 is that the weight ratio of the raw materials of the tensile layer 3 is different, and the weight ratio of each component of the raw materials used for the tensile layer 3 is as follows: 46g of water-based epoxy resin adhesive, wherein a molecular chain of the epoxy resin is connected with a hydrophilic polyoxyethylene group and contains two epoxy groups; the filler is 10g of organic silicon resin; 1g of 0.01-50 micron nano-aggregate particles; 6g of a polyurethane containing one urethane group; 2g of poly (p-phenylene terephthalamide).
Example 3:
the difference between the embodiment 3 and the embodiment 1 is that the weight ratio of the raw materials of the tensile layer 3 is different, and the weight ratio of each component of the raw materials used for the tensile layer 3 is as follows: 46g of water-based epoxy resin adhesive, wherein a molecular chain of the epoxy resin is connected with a hydrophilic polyoxyethylene group and contains two epoxy groups; the filler is 10g of organic silicon resin; 3g of 0.01-50 micron nano-aggregate particles; 6g of a polyurethane containing one urethane group; 2g of poly (p-phenylene terephthalamide).
Example 4:
the difference between the embodiment 4 and the embodiment 1 is that the weight ratio of the raw materials of the tensile layer 3 is different, and the weight ratio of each component of the raw materials used for the tensile layer 3 is as follows: 46g of water-based epoxy resin adhesive, wherein a molecular chain of the epoxy resin is connected with a hydrophilic polyoxyethylene group and contains two epoxy groups; the filler is 10g of organic silicon resin; 7g of 0.01-50 micron nano-aggregate particles; 6g of a polyurethane containing one urethane group; 2g of poly (p-phenylene terephthalamide).
Example 5:
the difference between the embodiment 2 and the embodiment 1 is that the weight ratio of the raw materials of the tensile layer 3 is different, and the weight ratio of each component of the raw materials used for the tensile layer 3 is as follows: 46g of water-based epoxy resin adhesive, wherein a molecular chain of the epoxy resin is connected with a hydrophilic polyoxyethylene group and contains two epoxy groups; the filler is 10g of organic silicon resin; 10g of 0.01-50 micron nano-aggregate particles; 6g of a polyurethane containing one urethane group; 2g of poly (p-phenylene terephthalamide).
Comparative example 1:
the difference between examples 1-5 and comparative example 1 is that the weight ratio of the raw materials of the tensile layer 3 is different, and the weight ratio of the components of the raw materials used for the tensile layer 3 is as follows: 46g of water-based epoxy resin adhesive, wherein a molecular chain of the epoxy resin is connected with a hydrophilic polyoxyethylene group and contains two epoxy groups; the filler is 10g of organic silicon resin; 2g of poly (p-phenylene terephthalamide).
Comparative example 2 a white mill skin made by mixing epoxy resin glue and polyurethane was used.
The details of the mixture ratio of the components of the above examples 1 to 5 and comparative examples 1 and 2 are shown in Table 1.
Examples 1-5 and comparative examples 1, 2 were tested:
the test was carried out according to the regulations of GB/T3354-2014. Except that the content of nano aggregated particles in the raw materials of the tensile layer is different, the other raw materials are the same, 6 white mill skins with the same length are cut along the width direction, one end of each white mill skin is clamped, the other end of each white mill skin is pulled for 30 minutes by 40N force, the deformation of the white mill skin is measured after 1.5 ten thousand times of repetition, then the change conditions of the surface part and the inner part of each white mill skin are observed, whether cracks exist or not is observed, the white mill skin is kept still for 48 hours, the rebound quantity of the white mill skin is measured, and the surface of the comparative example 2 has dense coarse cracks.
Figure BDA0002264330020000081
TABLE 1
It can be seen from table 1 above that, the addition amount of the nano aggregated particles has a great influence on the tensile property of the white buff, when the addition amount of the nano aggregated particles is 5g, the aqueous epoxy resin adhesive is 46g, and the proportion of the nano aggregated particles to the aqueous epoxy resin adhesive is 9.8%, the overall performance of the material is the best, and the white buff made of polyurethane and epoxy resin adhesive has a higher tensile property and is not easy to deform compared with the traditional white buff made of polyurethane and epoxy resin adhesive.
In summary, the following steps: the tensile white mill leather and the production method thereof provided by the invention comprise the steps that a polishing surface 1, a material-resistant layer 2, a tensile layer 3, a base material 4 and an anti-slip glue layer 5 are sequentially arranged from top to bottom, nanometer aggregation particles and water-based epoxy resin glue are mixed and then placed in an oxygen-enriched state to be stirred for 24-48 hours, oxides in the nanometer aggregation particles react with oxygen to form a hollowed-out oxide film net layer, and the net layer is positioned among the polishing surface 1, the abrasive layer 2, the base material 4 and the anti-slip glue layer 5 to support the polishing surface 1, so that the white mill leather is strong in tensile property and not easy to deform; the preparation method is simple, safe, environment-friendly and easy to realize industrial continuous production.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The tensile white mill leather is characterized in that: comprises a polishing surface (1), a material-resistant layer (2), a tensile layer (3), a base material (4) and an anti-skid adhesive layer (5) which are arranged from top to bottom in sequence; the polishing surface (1), the abrasive layer (2), the tensile layer (3), the base material (4) and the anti-skid glue layer (5) are sequentially and compositely connected together from top to bottom; the thickness of the base material (4) is 1-3mm, and the tensile layer (3) is prepared from the following raw materials in parts by weight:
20-30 parts of a first aqueous epoxy resin adhesive;
3-5 parts of a first filler;
1-10 parts of first nano aggregate particles;
1-10 parts of first polyurethane;
0.1-1 part of first aramid fiber;
wherein, the waterborne epoxy resin glue is formed by grafting acrylic acid and maleic anhydride monomers in an epoxy resin molecular chain, containing tertiary amine or quaternary ammonium base in the epoxy resin molecular chain or connecting a hydrophilic polyoxyethylene group on the epoxy resin molecular chain and ensuring that the epoxy resin contains two or more epoxy groups;
the filler can be one or a mixture of more than two of organic silicon resin, silicon powder, graphene, polyamide-6 or 66 synthetic fibers;
the size of the nano aggregation particles is 0.01-50 microns, and the nano aggregation particles comprise a mixture of titanium dioxide, zinc oxide, calcium carbonate and alumina, wherein the titanium dioxide accounts for 10% -20%, the alumina accounts for 20% -30%, and the zinc oxide accounts for 5% -30%;
the polyurethane is a polyurethane glue containing at least one urethane group, isocyanate group or isocyano group and a urethane group;
the aramid fiber is poly-p-phenylene terephthalamide with para-position structure of amide group connected on benzene ring.
2. The stretch-proof white mill leather according to claim 1, characterized in that: the polishing surface (1) and the abrasive layer (2) are prepared from the following raw materials in parts by weight:
20-30 parts of a second aqueous epoxy resin adhesive;
3-5 parts of a second filler;
1-10 parts of second nano aggregate particles;
1-10 parts of second polyurethane;
0.1-1 part of second aramid fiber;
5-15 parts of second nano aggregated silicon oxide;
wherein, the waterborne epoxy resin glue is formed by grafting acrylic acid and maleic anhydride monomers in an epoxy resin molecular chain, containing tertiary amine or quaternary ammonium base in the epoxy resin molecular chain or connecting a hydrophilic polyoxyethylene group on the epoxy resin molecular chain and ensuring that the epoxy resin contains two or more epoxy groups;
the filler can be one or a mixture of more than two of organic silicon resin, silicon powder, graphene, polyamide-6 or 66 synthetic fibers;
the size of the nano aggregation particles is 0.01-50 microns, and the nano aggregation particles comprise a mixture of titanium dioxide, zinc oxide, calcium carbonate and alumina, wherein the titanium dioxide accounts for 10% -20%, the alumina accounts for 20% -30%, and the zinc oxide accounts for 5% -30%;
the polyurethane is a polyurethane glue containing at least one urethane group, isocyanate group or isocyano group and a urethane group;
the aramid fiber is poly-p-phenylene terephthalamide with para-position structure of amide group connected on benzene ring.
3. The anti-pulling white mill leather according to claim 2, characterized in that: the nano aggregated silicon oxide is a mixture of natural silicon oxide and spherical fused silicon oxide.
4. The stretch-proof white mill leather according to claim 1, characterized in that: the anti-slip glue layer (5) comprises the following raw materials in parts by weight:
20-30 parts of a third aqueous epoxy resin adhesive;
3-5 parts of a third filler;
1-10 parts of third nano aggregate particles;
1-10 parts of third polyurethane;
0.1-1 part of a third aramid fiber;
5-15 parts of a third methyl vinyl silicone rubber;
wherein, the waterborne epoxy resin glue is formed by grafting acrylic acid and maleic anhydride monomers in an epoxy resin molecular chain, containing tertiary amine or quaternary ammonium base in the epoxy resin molecular chain or connecting a hydrophilic polyoxyethylene group on the epoxy resin molecular chain and ensuring that the epoxy resin contains two or more epoxy groups;
the filler can be one or a mixture of more than two of organic silicon resin, silicon powder, graphene, polyamide-6 or 66 synthetic fibers;
the size of the nano aggregation particles is 0.01-50 microns, and the nano aggregation particles comprise a mixture of titanium dioxide, zinc oxide, calcium carbonate and alumina, wherein the titanium dioxide accounts for 10% -20%, the alumina accounts for 20% -30%, and the zinc oxide accounts for 5% -30%;
the polyurethane is a polyurethane glue containing at least one urethane group, isocyanate group or isocyano group and a urethane group;
the aramid fiber is poly-p-phenylene terephthalamide with para-position structure of amide group connected on benzene ring.
5. The stretch-proof white mill leather according to claim 1, characterized in that: the methyl vinyl silicone rubber is formed by copolymerizing dimethyl siloxane and vinyl siloxane, and the vinyl content is 0.1-0.3%.
6. The stretch-proof white mill leather according to claim 1, characterized in that: the base material (3) is one or a mixture of more than two of glass fiber, carbon fiber, cotton, hemp, paper and metal.
7. The method for producing a tensile white mill skin according to any one of claims 1 to 6, characterized in that: the method comprises the following steps:
s1: uniformly mixing the proportioned first filler, first polyurethane and first aramid fiber, and then carrying out banburying at the temperature of 80-200 ℃ for 5-10 minutes to obtain a banburying product; mixing the nano aggregated particles and the water-based epoxy resin adhesive, placing the mixture in an oxygen-enriched state, stirring for 24-48 hours, coating the mixture on the surface of an internal mixing product after stirring, placing the mixture in an oven for vulcanization, wherein the temperature of the oven is 100-160 ℃, and the time is 5-10 minutes, and finally obtaining a tensile layer (3);
s2: the polishing material is coated on one side of a vulcanized tensile layer (3) after being mixed according to the raw materials of a polishing surface (1) and a heat-resistant layer (2), the other side of the tensile layer (3) is attached to a base material (4), and vulcanization is carried out for 5-20 minutes at the temperature of 100-160 ℃;
s3: and (3) mixing the raw materials of the anti-slip glue layer (5), coating the mixture on the surface of the vulcanized base material (4) in the step two, and vulcanizing at the temperature of 100-160 ℃ for 5-20 minutes to obtain the white mill leather.
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CN111516363A (en) * 2020-05-25 2020-08-11 安徽禾臣新材料有限公司 White buffing three-layer gluing compounding device and method
CN113510634A (en) * 2021-03-31 2021-10-19 安徽禾臣新材料有限公司 Porous groove white pad for polishing and grinding and production method thereof
CN115194642A (en) * 2022-07-29 2022-10-18 安徽禾臣新材料有限公司 Wax-free pad for preventing wafer from peeling for wafer polishing and production process thereof
CN115194641A (en) * 2022-07-29 2022-10-18 安徽禾臣新材料有限公司 High-flatness white pad for semiconductor polishing and preparation process thereof

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CN108505354A (en) * 2018-04-24 2018-09-07 安徽禾臣新材料有限公司 A kind of preparation method of high-precision camera lenses polishing grinding damping cloth
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CN106245089A (en) * 2016-09-09 2016-12-21 广东欧珀移动通信有限公司 High light technique after a kind of aluminium alloy anode oxide and Al-alloy products
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CN115194641A (en) * 2022-07-29 2022-10-18 安徽禾臣新材料有限公司 High-flatness white pad for semiconductor polishing and preparation process thereof
CN115194642B (en) * 2022-07-29 2023-08-11 安徽禾臣新材料有限公司 Wax-free pad for preventing wafer from stripping for wafer polishing and production process thereof
CN115194641B (en) * 2022-07-29 2023-08-11 安徽禾臣新材料有限公司 High-flatness white pad for semiconductor polishing and preparation process thereof

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