CN105542646A - A composite material modified with nanometer calcium carbonate and used for valve sealing and a preparing method thereof - Google Patents
A composite material modified with nanometer calcium carbonate and used for valve sealing and a preparing method thereof Download PDFInfo
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- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- 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
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/18—Homopolymers or copolymers of tetrafluoroethene
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- 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
- C09D5/08—Anti-corrosive paints
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- 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
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- 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
- C09D7/61—Additives non-macromolecular inorganic
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- 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
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- 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
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- 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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- 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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- 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
- C08K2201/011—Nanostructured additives
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- 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
A composite material modified with nanometer calcium carbonate and used for valve sealing is disclosed. The composite material comprises 60-80 parts by weight of the nanometer calcium carbonate, 20-35 parts by weight of nanometer ceramic powder, 15-20 parts by weight of nanometer titanium dioxide, 20-30 parts by weight of nanometer silicon carbide, 10-18 parts by weight of boron carbide, 6-10 parts by weight of nanometer bentonite, 5-8 parts by weight of talcum powder, 25-30 parts by weight of polytetrafluoroethylene, 20-30 parts by weight of polyurethane resin, 12-16 parts by weight of sodium carboxymethylcellulose, 8-12 parts by weight of glycerol, 8-10 parts by weight of linear type phenol formaldehyde resin and a plurality of auxiliary agents. The composite material can form a dense and hard coating on the surface of a metal valve and plays roles of high strength, high wear resistance, high-temperature resistance, corrosion resistance and ageing resistance, thus improving sealing performance of the valve, effectively prolonging the service lifetime of the metal vale, and broadening the using range of the metal valve.
Description
Technical field
The present invention relates to valve seal field of material technology, be specially a kind of valve seal nono calcium carbonate modified matrix material and preparation method thereof.
Background technology
Valve is the function unit in fluid delivery system, has cut-off, adjustment, water conservancy diversion, prevents the functions such as adverse current, voltage stabilizing, shunting or overflow pressure relief.
Therefore, the coating being sprayed on valve surface must have the performances such as water-fast, shock-resistant, heat-resisting, heat insulation, and the coating being especially sprayed on metal valve surface needs to possess stronger anticorrosion and antioxidant property.
But existing market is that to be exclusively used in the coating of metal valve little, and it is anticorrosion, antioxidant effect is poor.
The general nonmetal sealing material used on valve is fluoroplastics or the soft graphite such as pure tetrafluoroethylene (PTFE), reinforced TFE (RTFE) at present.Common fluoroplastics plasticity-is good, can be processed into different shape, and frictional coefficient is low, but has the shortcoming of non-refractory, and its use temperature is-40 DEG C ~ 160 DEG C; And although soft graphite can be high temperature resistant, use temperature is-196 DEG C ~ 600 DEG C, and its poor plasticity, can only be processed into the structure such as sheet or rectangular ring, and frictional coefficient is relatively high.
In recent years, the research utilizing nano-substance to carry out material modification processing gets more and more, but the report being applied to valve seal material aspect is little, therefore we can utilize nano-substance to carry out modification to valve seal material, to obtaining the valve seal matrix material of the excellent performances such as stopping property, resistance to deterioration, erosion resistance.
Summary of the invention
The technical problem to be solved in the present invention is that to overcome the intensity of existing valve seal material low, and the defect of wear resistance, preservative property and antioxidant effect difference, provides a kind of valve seal nono calcium carbonate modified matrix material and preparation method thereof.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
The nono calcium carbonate modified matrix material of a kind of valve seal, its formula comprises each component of following parts by weight:
Nano-calcium carbonate 60 ~ 80 parts, nano-ceramic powder 20 ~ 35 parts, nanometer titanium dioxide 25 ~ 30 parts, nanometer silicon carbide 20 ~ 30 parts, norbide 10 ~ 18 parts, nano-bentonite 6 ~ 10 parts, 5 ~ 8 parts, diatomite, 4 ~ 8 parts, aluminum oxide, 3 ~ 5 parts, carbon fiber, silica powder 3 ~ 5 parts, talcum powder 5 ~ 8 parts, Graphite Powder 99 2 ~ 3 parts, tetrafluoroethylene 25 ~ 30 parts, urethane resin 20 ~ 30 parts, Xylo-Mucine 12 ~ 16 parts, glycerine 8 ~ 12 parts, lacquer resins 8 ~ 10 parts, phosphorous acid ester 3 ~ 5 parts, dibutyl phthalate 3 ~ 6 parts, salicylic acid phenyl ester 3 ~ 6 parts, stearic acid 2 ~ 3 parts, blown castor oil 3 ~ 5 parts, polyester 1 ~ 2 part, 1 ~ 2 part, agar, rosin 0.5 ~ 1 part.
Further, the nono calcium carbonate modified matrix material of a kind of valve seal, its formula comprises each component of following parts by weight:
Nano-calcium carbonate 50 ~ 55 parts, nano-ceramic powder 25 ~ 30 parts, nanometer titanium dioxide 28 parts, nanometer silicon carbide 24 ~ 26 parts, norbide 12 ~ 16 parts, nano-bentonite 8 parts, 6 parts, diatomite, 6 parts, aluminum oxide, 4 parts, carbon fiber, silica powder 4 parts, talcum powder 6 parts, Graphite Powder 99 2 ~ 3 parts, tetrafluoroethylene 28 parts, urethane resin 24 ~ 26 parts, Xylo-Mucine 14 parts, glycerine 10 parts, lacquer resins 8 parts, phosphorous acid ester 4 parts, dibutyl phthalate 5 parts, salicylic acid phenyl ester 4 ~ 6 parts, stearic acid 2 ~ 3 parts, blown castor oil 4 parts, polyester 1 ~ 2 part, 1 ~ 2 part, agar, rosin 0.5 ~ 1 part.
Preferably, the particle diameter of described nano-calcium carbonate is 30 ~ 50 nanometers.
Preferably, the particle diameter of described nano-ceramic powder is 80 ~ 100 nanometers.
A valve seal preparation method for nono calcium carbonate modified matrix material, comprises following step:
(1) add in high-speed mixer nano-bentonite, diatomite and aluminum oxide, Graphite Powder 99 and glycerine be warming up to 65 ~ 80 DEG C after with abundant mixing 10 ~ 15min in ultrasonic generator, then to add in nano-calcium carbonate, nano-ceramic powder, nanometer titanium dioxide, nanometer silicon carbide, norbide, silica powder, talcum powder continuation ultrasonic generator fully mixing 10-15min and obtain mixture I; Preferably, the power of ultrasonic generator is 1.2KW ~ 1.5KW, and 5 ~ 15 minutes time, mode of operation is service intermittent, often works 30 seconds, suspends 30 seconds;
(2) mixture I is joined in sand mill, after sand milling 20 ~ 60min, obtain mixtures II; Preferably, sand milling is less than 10um to fineness;
(3) first tetrafluoroethylene, urethane resin, Xylo-Mucine, lacquer resins, phosphorous acid ester, stearic acid, polyester, carbon fiber are joined in high-speed mixer, mixtures II is added again after mixing 10-15min, then 75-80 DEG C is warming up to, naturally cooling cooling is started after insulation 15-20min, after temperature is down to 35-40 DEG C, adds dibutyl phthalate, salicylic acid phenyl ester, blown castor oil, agar and rosin again continues mixing 20-25min, obtain mixtures III;
(4) extrude in flakes by mixtures III at 90-100 DEG C through forcing machine, join in pulverizer after cooling fragmentation, the powder particle after pulverizing, through 180 mesh sieve, gets product.
The nono calcium carbonate modified matrix material of valve seal of the present invention, select nano-calcium carbonate, nano-ceramic powder, nanometer titanium dioxide, nanometer silicon carbide adds various auxiliary agent as main raw simultaneously and carries out modification to tetrafluoroethylene and urethane resin, the matrix material obtained can form the fine and close and hard coating of one deck on metal valve surface, play high strength, high abrasion, high temperature resistant, corrosion-resistant, aging-resistant effect, thus improve the sealing property of valve, and effectively extend the work-ing life of metal valve, and expand the use range of metal valve.
Embodiment
Below the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
embodiment 1
The nono calcium carbonate modified matrix material of a kind of valve seal, its formula comprises each component of following parts by weight:
Nano-calcium carbonate 60 parts, nano-ceramic powder 35 parts, nanometer titanium dioxide 25 parts, nanometer silicon carbide 30 parts, norbide 10 parts, nano-bentonite 10 parts, 5 parts, diatomite, 8 parts, aluminum oxide, 3 parts, carbon fiber, silica powder 5 parts, talcum powder 5 parts, Graphite Powder 99 3 parts, tetrafluoroethylene 25 parts, urethane resin 30 parts, Xylo-Mucine 12 parts, glycerine 12 parts, lacquer resins 8 parts, phosphorous acid ester 5 parts, dibutyl phthalate 3 parts, salicylic acid phenyl ester 6 parts, stearic acid 2 parts, blown castor oil 5 parts, polyester 1 part, 2 parts, agar, rosin 0.5 part.
A valve seal preparation method for nono calcium carbonate modified matrix material, comprises following step:
(1) add in high-speed mixer nano-bentonite, diatomite and aluminum oxide, Graphite Powder 99 and glycerine be warming up to 65 ~ 80 DEG C after with abundant mixing 10 ~ 15min in ultrasonic generator, then to add in nano-calcium carbonate, nano-ceramic powder, nanometer titanium dioxide, nanometer silicon carbide, norbide, silica powder, talcum powder continuation ultrasonic generator fully mixing 10-15min and obtain mixture I;
(2) mixture I is joined in sand mill, after sand milling 20 ~ 60min, obtain mixtures II;
(3) first tetrafluoroethylene, urethane resin, Xylo-Mucine, lacquer resins, phosphorous acid ester, stearic acid, polyester, carbon fiber are joined in high-speed mixer, mixtures II is added again after mixing 10-15min, then 75-80 DEG C is warming up to, naturally cooling cooling is started after insulation 15-20min, after temperature is down to 35-40 DEG C, adds dibutyl phthalate, salicylic acid phenyl ester, blown castor oil, agar and rosin again continues mixing 20-25min, obtain mixtures III;
(4) extrude in flakes by mixtures III at 90-100 DEG C through forcing machine, join in pulverizer after cooling fragmentation, the powder particle after pulverizing, through 180 mesh sieve, gets product.
embodiment 2
The nono calcium carbonate modified matrix material of a kind of valve seal, its formula comprises each component of following parts by weight:
Nano-calcium carbonate 50 parts, nano-ceramic powder 20 parts, nanometer titanium dioxide 30 parts, nanometer silicon carbide 20 parts, norbide 18 parts, nano-bentonite 6 parts, 8 parts, diatomite, 4 parts, aluminum oxide, 5 parts, carbon fiber, silica powder 3 parts, talcum powder 8 parts, Graphite Powder 99 2 parts, tetrafluoroethylene 30 parts, urethane resin 20 parts, Xylo-Mucine 16 parts, glycerine 8 parts, lacquer resins 10 parts, phosphorous acid ester 3 parts, dibutyl phthalate 6 parts, salicylic acid phenyl ester 3 parts, stearic acid 3 parts, blown castor oil 3 parts, polyester 2 parts, 1 part, agar, rosin 1 part.
A valve seal preparation method for nono calcium carbonate modified matrix material, comprises following step:
(1) add in high-speed mixer nano-bentonite, diatomite and aluminum oxide, Graphite Powder 99 and glycerine be warming up to 65 ~ 80 DEG C after with abundant mixing 10 ~ 15min in ultrasonic generator, then to add in nano-calcium carbonate, nano-ceramic powder, nanometer titanium dioxide, nanometer silicon carbide, norbide, silica powder, talcum powder continuation ultrasonic generator fully mixing 10-15min and obtain mixture I; The power of ultrasonic generator is 1.2KW ~ 1.5KW, and 5 ~ 15 minutes time, mode of operation is service intermittent, often works 30 seconds, suspends 30 seconds;
(2) mixture I is joined in sand mill, after sand milling 20 ~ 60min, obtain mixtures II; Sand milling is less than 10um to fineness;
(3) first tetrafluoroethylene, urethane resin, Xylo-Mucine, lacquer resins, phosphorous acid ester, stearic acid, polyester, carbon fiber are joined in high-speed mixer, mixtures II is added again after mixing 10-15min, then 75-80 DEG C is warming up to, naturally cooling cooling is started after insulation 15-20min, after temperature is down to 35-40 DEG C, adds dibutyl phthalate, salicylic acid phenyl ester, blown castor oil, agar and rosin again continues mixing 20-25min, obtain mixtures III;
(4) extrude in flakes by mixtures III at 90-100 DEG C through forcing machine, join in pulverizer after cooling fragmentation, the powder particle after pulverizing, through 180 mesh sieve, gets product.
embodiment 3
The nono calcium carbonate modified matrix material of a kind of valve seal, its formula comprises each component of following parts by weight:
Nano-calcium carbonate 55 parts, nano-ceramic powder 30 parts, nanometer titanium dioxide 28 parts, nanometer silicon carbide 26 parts, norbide 16 parts, nano-bentonite 8 parts, 6 parts, diatomite, 6 parts, aluminum oxide, 4 parts, carbon fiber, silica powder 4 parts, talcum powder 6 parts, Graphite Powder 99 3 parts, tetrafluoroethylene 28 parts, urethane resin 26 parts, Xylo-Mucine 14 parts, glycerine 10 parts, lacquer resins 8 parts, phosphorous acid ester 4 parts, dibutyl phthalate 5 parts, salicylic acid phenyl ester 6 parts, stearic acid 3 parts, blown castor oil 4 parts, polyester 2 parts, 2 parts, agar, rosin 1 part.
The particle diameter of nano-calcium carbonate is 30 ~ 50 nanometers, the particle diameter of nano-ceramic powder is 80 ~ 100 nanometers.
The valve seal of the present embodiment by the preparation method of nono calcium carbonate modified matrix material with embodiment 2.
embodiment 4
The nono calcium carbonate modified matrix material of a kind of valve seal, its formula comprises each component of following parts by weight:
Nano-calcium carbonate 80 parts, nano-ceramic powder 25 parts, nanometer titanium dioxide 28 parts, nanometer silicon carbide 24 parts, norbide 12 parts, nano-bentonite 8 parts, 6 parts, diatomite, 6 parts, aluminum oxide, 4 parts, carbon fiber, silica powder 4 parts, talcum powder 6 parts, Graphite Powder 99 2 parts, tetrafluoroethylene 28 parts, urethane resin 24 parts, Xylo-Mucine 14 parts, glycerine 10 parts, lacquer resins 8 parts, phosphorous acid ester 4 parts, dibutyl phthalate 5 parts, salicylic acid phenyl ester 4 parts, stearic acid 2 parts, blown castor oil 4 parts, polyester 1 part, 1 part, agar, rosin 0.5 part.
The particle diameter of nano-calcium carbonate is 30 ~ 50 nanometers, the particle diameter of nano-ceramic powder is 80 ~ 100 nanometers.
The valve seal of the present embodiment by the preparation method of nono calcium carbonate modified matrix material with embodiment 2.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.
Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the nono calcium carbonate modified matrix material of valve seal, is characterized in that, its formula comprises each component of following parts by weight:
Nano-calcium carbonate 60 ~ 80 parts, nano-ceramic powder 20 ~ 35 parts, nanometer titanium dioxide 25 ~ 30 parts, nanometer silicon carbide 20 ~ 30 parts, norbide 10 ~ 18 parts, nano-bentonite 6 ~ 10 parts, 5 ~ 8 parts, diatomite, 4 ~ 8 parts, aluminum oxide, 3 ~ 5 parts, carbon fiber, silica powder 3 ~ 5 parts, talcum powder 5 ~ 8 parts, Graphite Powder 99 2 ~ 3 parts, tetrafluoroethylene 25 ~ 30 parts, urethane resin 20 ~ 30 parts, Xylo-Mucine 12 ~ 16 parts, glycerine 8 ~ 12 parts, lacquer resins 8 ~ 10 parts, phosphorous acid ester 3 ~ 5 parts, dibutyl phthalate 3 ~ 6 parts, salicylic acid phenyl ester 3 ~ 6 parts, stearic acid 2 ~ 3 parts, blown castor oil 3 ~ 5 parts, polyester 1 ~ 2 part, 1 ~ 2 part, agar, rosin 0.5 ~ 1 part.
2. the nono calcium carbonate modified matrix material of a kind of valve seal as claimed in claim 1, is characterized in that, its formula comprises each component of following parts by weight:
Nano-calcium carbonate 50 ~ 55 parts, nano-ceramic powder 25 ~ 30 parts, nanometer titanium dioxide 28 parts, nanometer silicon carbide 24 ~ 26 parts, norbide 12 ~ 16 parts, nano-bentonite 8 parts, 6 parts, diatomite, 6 parts, aluminum oxide, 4 parts, carbon fiber, silica powder 4 parts, talcum powder 6 parts, Graphite Powder 99 2 ~ 3 parts, tetrafluoroethylene 28 parts, urethane resin 24 ~ 26 parts, Xylo-Mucine 14 parts, glycerine 10 parts, lacquer resins 8 parts, phosphorous acid ester 4 parts, dibutyl phthalate 5 parts, salicylic acid phenyl ester 4 ~ 6 parts, stearic acid 2 ~ 3 parts, blown castor oil 4 parts, polyester 1 ~ 2 part, 1 ~ 2 part, agar, rosin 0.5 ~ 1 part.
3. the nono calcium carbonate modified matrix material of a kind of valve seal as described in any one of claim 1 or 2, is characterized in that, the particle diameter of described nano-calcium carbonate is 30 ~ 50 nanometers.
4. the nono calcium carbonate modified matrix material of a kind of valve seal as described in any one of claim 1 or 2, is characterized in that, the particle diameter of described nano-ceramic powder is 80 ~ 100 nanometers.
5. the valve seal preparation method for nono calcium carbonate modified matrix material as described in any one of claim 1 or 2, is characterized in that, comprise following step:
(1) add in high-speed mixer nano-bentonite, diatomite and aluminum oxide, Graphite Powder 99 and glycerine be warming up to 65 ~ 80 DEG C after with abundant mixing 10 ~ 15min in ultrasonic generator, then to add in nano-calcium carbonate, nano-ceramic powder, nanometer titanium dioxide, nanometer silicon carbide, norbide, silica powder, talcum powder continuation ultrasonic generator fully mixing 10-15min and obtain mixture I;
(2) mixture I is joined in sand mill, after sand milling 20 ~ 60min, obtain mixtures II;
(3) first tetrafluoroethylene, urethane resin, Xylo-Mucine, lacquer resins, phosphorous acid ester, stearic acid, polyester, carbon fiber are joined in high-speed mixer, mixtures II is added again after mixing 10-15min, then 75-80 DEG C is warming up to, naturally cooling cooling is started after insulation 15-20min, after temperature is down to 35-40 DEG C, adds dibutyl phthalate, salicylic acid phenyl ester, blown castor oil, agar and rosin again continues mixing 20-25min, obtain mixtures III;
(4) extrude in flakes by mixtures III at 90-100 DEG C through forcing machine, join in pulverizer after cooling fragmentation, the powder particle after pulverizing, through 180 mesh sieve, gets product.
6. a kind of valve seal as claimed in claim 1 as claimed in claim 5 preparation method of nono calcium carbonate modified matrix material, it is characterized in that, in step 1), the power of ultrasonic generator is 1.2KW ~ 1.5KW, 5 ~ 15 minutes time, mode of operation is service intermittent, often work 30 seconds, suspend 30 seconds.
7. a kind of valve seal as claimed in claim 1 preparation method of nono calcium carbonate modified matrix material as claimed in claim 5, is characterized in that, in step 2) medium sand is milled to fineness and is less than 10um.
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| CN107904948A (en) * | 2017-11-27 | 2018-04-13 | 江苏高盛高分子新材料有限公司 | A kind of high-strength high-modulus polyethylene fiber and its manufacturing process |
| CN107955556A (en) * | 2017-12-07 | 2018-04-24 | 南京中贝电子有限公司 | A kind of fuel cell Conductive sealant |
| CN108116352A (en) * | 2018-01-02 | 2018-06-05 | 苏州盱酋汽车科技有限公司 | A kind of wear-resisting front bumper mounting bracket |
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