CN113444411A - High-strength tire valve and production process thereof - Google Patents
High-strength tire valve and production process thereof Download PDFInfo
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- CN113444411A CN113444411A CN202110725957.2A CN202110725957A CN113444411A CN 113444411 A CN113444411 A CN 113444411A CN 202110725957 A CN202110725957 A CN 202110725957A CN 113444411 A CN113444411 A CN 113444411A
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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
- C09D133/00—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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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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
- 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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- 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
- C09D7/48—Stabilisers against degradation by oxygen, light or heat
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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
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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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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Abstract
The invention discloses a high-strength tire valve and a production process thereof, wherein an aluminum alloy valve is sprayed with a strengthening coating, and the temperature is kept for 1-1.5h at 50-60 ℃ to prepare the high-reliability corrosion-resistant valve, wherein the strengthening coating comprises the following raw materials in parts by weight: 100-150 parts of acrylic emulsion, 10-15 parts of reinforcing filler, 10-15 parts of talcum powder, 10-15 parts of propylene glycol butyl ether, 1-5 parts of dispersant, 10-20 parts of plasticizer and 50-80 parts of water; the reinforced filler is prepared in the process of preparing the reinforced coating, the modified graphene is used as a carrier, the modified graphene can enhance the corrosion resistance of a coating film, and a large number of hindered phenol and phosphite ester structures are arranged on the surface of the modified graphene, so that hydroperoxide can be eliminated, the paint film is not easy to age, and the long-time protection of the paint film on an inflating valve is ensured.
Description
Technical Field
The invention relates to the technical field of inflating valves, in particular to a high-strength tire inflating valve and a production process thereof.
Background
The air valve is an independent valve body device, when the air valve is opened, air can be fed into tubeless tyre (tube tire) or space of inner tube, then the air valve can be automatically closed and sealed to retain air so as to prevent air from escaping from the tyre or inner tube.
Most of the existing inflating valves are made of metal, but can be corroded in a long-time use process, so that the inflating valves cannot work normally, part of inflating valves are protected by spraying, but a surface paint film is aged and easily falls off, and the inflating valves cannot be protected normally.
Disclosure of Invention
The invention aims to provide a high-strength tire valve and a production process thereof.
The technical problems to be solved by the invention are as follows:
most of the existing inflating valves are made of metal, but can be corroded in a long-time use process, so that the inflating valves cannot work normally, part of inflating valves are protected by spraying, but a surface paint film is aged and easily falls off, and the inflating valves cannot be protected normally.
The purpose of the invention can be realized by the following technical scheme:
a high strength tire valve, comprising the steps of:
spraying the strengthening coating for the aluminum alloy valve, and keeping the temperature for 1-1.5h at 50-60 ℃ to obtain the highly reliable corrosion-resistant valve.
The reinforced coating comprises the following raw materials in parts by weight: 100-150 parts of acrylic emulsion, 10-15 parts of reinforcing filler, 10-15 parts of talcum powder, 10-15 parts of propylene glycol butyl ether, 1-5 parts of dispersant, 10-20 parts of plasticizer and 50-80 parts of water;
the reinforced coating is prepared by the following steps: the raw materials are added into a stirring kettle and stirred for 3-4 hours at the rotating speed of 1500-1800r/min, so as to prepare the reinforced coating.
Further, the dispersant is one or more of sodium oleate, sodium carboxylate and sodium dodecyl sulfate which are mixed in any proportion, and the plasticizer is one or more of diisooctyl sebacate, dibutyl phthalate and dioctyl phthalate which are mixed in any proportion.
Further, the reinforcing filler is prepared by the following steps:
step A1: adding graphite, sodium nitrate and concentrated sulfuric acid into a reaction kettle, stirring and adding potassium permanganate under the conditions that the rotating speed is 150-plus-200 r/min and the temperature is 0-5 ℃, reacting for 2-3h, heating to the temperature of 30-40 ℃, stirring for 3-5h, adding deionized water, reacting for 30-40min under the temperature of 90-95 ℃, adding hydrogen peroxide until no bubbles are generated, washing the reaction solution until the reaction solution is free of SO4 2-Performing ion filtration, drying a filter cake to obtain graphene oxide, dispersing the graphene oxide in deionized water, adding tetraethoxysilane, absolute ethyl alcohol and concentrated hydrochloric acid, and stirring for 5-8h at the rotation speed of 200-300r/min and the temperature of 60-70 ℃ to obtain modified graphene;
step A2: adding p-methylaniline, toluene, potassium hydroxide, potassium chloride and tetramethylammonium hydroxide into a reaction kettle, reacting for 4-6h at the rotation speed of 150-200r/min and the temperature of 75-80 ℃ to obtain an intermediate 1, adding the intermediate 1, nitrogen-bromosuccinimide, benzoyl peroxide and carbon tetrachloride into the reaction kettle, reacting for 8-10h at the temperature of 80-90 ℃ to obtain an intermediate 1, adding the intermediate 2, potassium carbonate, deionized water and tetraethylammonium bromide into the reaction kettle, and performing reflux reaction for 2-3h to obtain an intermediate 3;
the reaction process is as follows:
step A3: adding the intermediate 3, phosphorus trichloride and triethylamine into a reaction kettle, reacting for 3-5h at the rotation speed of 150-;
the reaction process is as follows:
step A4: adding the intermediate 6, the intermediate 5, sodium carbonate and toluene into a reaction kettle, reacting for 2-3h at the rotation speed of 200-plus-one at 300r/min to obtain an intermediate 7, adding the intermediate 7, sulfur, iodine and tetrahydrofuran into the reaction kettle, performing reflux reaction for 3-5h at the temperature of 180-plus-one at 200 ℃ to obtain an intermediate 8, adding the intermediate 8, bromoethylamine, triethylamine and tetrahydrofuran into the reaction kettle, performing reflux reaction for 2-3h to obtain an intermediate 9, adding the intermediate 9, modified graphene, deionized water and 1-hydroxybenzotriazole into the reaction kettle, reacting for 5-8h at the temperature of 30-40 ℃, filtering to remove filtrate, and drying filter cakes to obtain the reinforcing filler.
The reaction process is as follows:
further, the amount ratio of the graphite, the sodium nitrate, the concentrated sulfuric acid, the potassium permanganate, the deionized water and the hydrogen peroxide in the step A1 is 5g:23g:100mL:25g:150mL:15mL, the mass fraction of the concentrated sulfuric acid is 95%, the amount ratio of the graphene oxide, the deionized water, the tetraethoxysilane, the absolute ethyl alcohol and the concentrated hydrochloric acid is 5g:50mL:4mL:10mL:10mL, and the mass fraction of the concentrated sulfuric acid is 36%.
Further, the dosage mass ratio of p-methylaniline, toluene, potassium hydroxide, potassium chloride and tetramethylammonium hydroxide in the step A2 is 4.3:1:0.15:0.2:0.5, the dosage ratio of the intermediate 1, nitrogen-bromosuccinimide, benzoyl peroxide and carbon tetrachloride is 0.1mol:0.1mol:0.15g:300mL, and the dosage ratio of the intermediate 1, potassium carbonate, deionized water and tetraethylammonium bromide is 3.4g:8.5g:80mL:3 mL.
Further, the molar ratio of the intermediate 3, phosphorus trichloride and triethylamine in the step A3 is 1:2:1, the molar ratio of the intermediate 4, hydroquinone and sodium carbonate is 1:2:2, and the molar ratio of bromopropylene, 2, 6-di-tert-butylphenol and potassium hydroxide is 1:1: 0.1.
Further, the molar ratio of the intermediate 6, the intermediate 5 and the sodium carbonate in the step A4 is 1:2:2, the molar ratio of the intermediate 7, the sulfur and the iodine in the step A is 1:2:0.02, the molar ratio of the intermediate 8, the bromoethylamine and the triethylamine in the step A is 1:1:1, and the molar ratio of the intermediate 9, the modified graphene and the 1-hydroxybenzotriazole in the step A is 1:5: 0.8.
A production process of a high-strength tire valve comprises the following steps:
spraying the strengthening coating for the aluminum alloy valve, and keeping the temperature for 1-1.5h at 50-60 ℃ to obtain the highly reliable corrosion-resistant valve.
The invention has the beneficial effects that: in the process of preparing the high-reliability corrosion-resistant inflating valve, the reinforcing filler is prepared by spraying the reinforcing coating on the aluminum alloy inflating valve, in the process of preparing the reinforcing coating, the reinforcing filler takes graphite as a raw material and is oxidized to prepare graphene oxide, the graphene oxide is treated by tetraethoxysilane to enable the surface clearance of the graphene oxide to be embedded with nano silicon dioxide to prepare modified graphene, p-methylaniline and methylbenzene are subjected to coupling reaction to prepare an intermediate 1, the intermediate 1 is treated by nitrogen-bromosuccinimide to prepare an intermediate 2, the intermediate 2 is further treated to prepare an intermediate 3, the intermediate 3 is reacted with phosphorus trichloride to prepare an intermediate 4, the intermediate 4 is reacted with hydroquinone to prepare an intermediate 5, bromopropylene and 2, 6-di-tert-butylphenol are reacted, preparing an intermediate 6, reacting the intermediate 5 with the intermediate 6 to prepare an intermediate 7, reacting the intermediate 7 with sulfur to prepare an intermediate 8, reacting the intermediate 8 with bromoethylamine to prepare an intermediate 9, reacting the intermediate 9 with modified graphene under the action of 1-hydroxybenzotriazole, and dehydrating and condensing carboxyl on the surface of the modified graphene and amino on the intermediate 9 to prepare the reinforced filler, wherein the reinforced filler takes the modified graphene as a carrier, the modified graphene can enhance the corrosion resistance of a coating, and the surface of the modified graphene also has a large amount of hindered phenol and phosphite ester structures, so that hydroperoxide can be eliminated, the paint film is not easy to age, and the long-time protection of the paint film on an air valve is ensured.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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
A high strength tire valve, comprising the steps of:
spraying the strengthening coating for the aluminum alloy inflating valve, and keeping the temperature for 1h at 50 ℃ to prepare the highly reliable corrosion-resistant inflating valve.
The reinforced coating comprises the following raw materials in parts by weight: 100 parts of acrylic emulsion, 10 parts of reinforcing filler, 10 parts of talcum powder, 10 parts of propylene glycol butyl ether, 1 part of sodium dodecyl sulfate, 10 parts of diisooctyl sebacate and 50 parts of water;
the reinforced coating is prepared by the following steps: adding the raw materials into a stirring kettle, and stirring for 3 hours at the rotating speed of 1500/min to prepare the reinforced coating.
The reinforcing filler is prepared by the following steps:
step A1: adding graphite, sodium nitrate and concentrated sulfuric acid into a reaction kettle, stirring and adding potassium permanganate under the conditions that the rotating speed is 150r/min and the temperature is 0 ℃, reacting for 2 hours, heating to the temperature of 30 ℃, stirring for 3 hours, adding deionized water, reacting for 30 minutes under the condition that the temperature is 90 ℃, adding hydrogen peroxide until no bubbles are generated, washing the reaction solution until no SO is generated in the reaction solution4 2-Performing ion filtration, drying a filter cake to obtain graphene oxide, dispersing the graphene oxide in deionized water, adding tetraethoxysilane, absolute ethyl alcohol and concentrated hydrochloric acid, and stirring for 5-8 hours at the rotation speed of 200r/min and the temperature of 60 ℃ to obtain modified graphene;
step A2: adding p-methylaniline, toluene, potassium hydroxide, potassium chloride and tetramethylammonium hydroxide into a reaction kettle, reacting for 4 hours at the rotation speed of 150r/min and the temperature of 75 ℃ to obtain an intermediate 1, adding the intermediate 1, nitrogen-bromosuccinimide, benzoyl peroxide and carbon tetrachloride into the reaction kettle, reacting for 8 hours at the temperature of 80 ℃ to obtain an intermediate 1, adding the intermediate 2, potassium carbonate, deionized water and tetraethylammonium bromide into the reaction kettle, and performing reflux reaction for 2 hours to obtain an intermediate 3;
step A3: adding the intermediate 3, phosphorus trichloride and triethylamine into a reaction kettle, reacting for 3 hours at the rotation speed of 150r/min and the temperature of 50 ℃ to obtain an intermediate 4, adding the intermediate 4, hydroquinone, sodium carbonate and toluene into the reaction kettle, reacting for 1 hour at the rotation speed of 200r/min and the temperature of 30 ℃ to obtain an intermediate 5, adding bromopropylene, 2, 6-di-tert-butylphenol, potassium hydroxide and tetrahydrofuran into the reaction kettle, and reacting for 1 hour at the temperature of 140 ℃ to obtain an intermediate 6;
step A4: adding the intermediate 6, the intermediate 5, sodium carbonate and toluene into a reaction kettle, reacting for 2 hours at the rotating speed of 200r/min to obtain an intermediate 7, adding the intermediate 7, sulfur, iodine and tetrahydrofuran into the reaction kettle, performing reflux reaction for 3 hours at the temperature of 180 ℃ to obtain an intermediate 8, adding the intermediate 8, bromoethylamine, triethylamine and tetrahydrofuran into the reaction kettle, performing reflux reaction for 2 hours to obtain an intermediate 9, adding the intermediate 9, modified graphene, deionized water and 1-hydroxybenzotriazole into the reaction kettle, reacting for 5 hours at the temperature of 30 ℃, filtering to remove filtrate, and drying a filter cake to obtain the reinforcing filler.
Example 2
A high strength tire valve, comprising the steps of:
spraying the strengthening coating for the aluminum alloy valve, and keeping the temperature for 1.5 hours at the temperature of 50 ℃ to prepare the highly reliable corrosion-resistant valve.
The reinforced coating comprises the following raw materials in parts by weight: 100 parts of acrylic emulsion, 15 parts of reinforcing filler, 10 parts of talcum powder, 15 parts of propylene glycol butyl ether, 1 part of sodium dodecyl sulfate, 20 parts of diisooctyl sebacate and 50 parts of water;
the reinforced coating is prepared by the following steps: the raw materials are added into a stirring kettle and stirred for 3 hours at the rotating speed of 1800r/min, and the reinforced coating is prepared.
The reinforcing filler is prepared by the following steps:
step A1: adding graphite, sodium nitrate and concentrated sulfuric acid into a reaction kettle, stirring and adding potassium permanganate under the conditions that the rotating speed is 200r/min and the temperature is 0 ℃, reacting for 3 hours, heating to the temperature of 30 ℃, stirring for 5 hours, adding deionized water, reacting for 40 minutes under the condition that the temperature is 90 ℃, adding hydrogen peroxide until no bubbles are generated, washing the reaction solution until no SO is generated in the reaction solution4 2-Performing ion filtration, drying a filter cake to obtain graphene oxide, dispersing the graphene oxide in deionized water, adding tetraethoxysilane, absolute ethyl alcohol and concentrated hydrochloric acid, and stirring for 5 hours at the rotation speed of 200r/min and the temperature of 70 ℃ to obtain modified graphene;
step A2: adding p-methylaniline, toluene, potassium hydroxide, potassium chloride and tetramethylammonium hydroxide into a reaction kettle, reacting for 4-6h at the rotation speed of 200r/min and the temperature of 75 ℃ to prepare an intermediate 1, adding the intermediate 1, nitrogen-bromosuccinimide, benzoyl peroxide and carbon tetrachloride into the reaction kettle, reacting for 8h at the temperature of 90 ℃ to prepare an intermediate 1, adding the intermediate 2, potassium carbonate, deionized water and tetraethylammonium bromide into the reaction kettle, and performing reflux reaction for 3h to prepare an intermediate 3;
step A3: adding the intermediate 3, phosphorus trichloride and triethylamine into a reaction kettle, reacting for 3 hours at the rotation speed of 150r/min and the temperature of 60 ℃ to obtain an intermediate 4, adding the intermediate 4, hydroquinone, sodium carbonate and toluene into the reaction kettle, reacting for 3 hours at the rotation speed of 300r/min and the temperature of 30 ℃ to obtain an intermediate 5, adding bromopropylene, 2, 6-di-tert-butylphenol, potassium hydroxide and tetrahydrofuran into the reaction kettle, and reacting for 1.5 hours at the temperature of 140 ℃ to obtain an intermediate 6;
step A4: adding the intermediate 6, the intermediate 5, sodium carbonate and toluene into a reaction kettle, reacting for 3 hours at the rotating speed of 200r/min to obtain an intermediate 7, adding the intermediate 7, sulfur, iodine and tetrahydrofuran into the reaction kettle, performing reflux reaction for 5 hours at the temperature of 180 ℃ to obtain an intermediate 8, adding the intermediate 8, bromoethylamine, triethylamine and tetrahydrofuran into the reaction kettle, performing reflux reaction for 2 hours to obtain an intermediate 9, adding the intermediate 9, modified graphene, deionized water and 1-hydroxybenzotriazole into the reaction kettle, reacting for 5 hours at the temperature of 40 ℃, filtering to remove filtrate, and drying a filter cake to obtain the reinforcing filler.
Example 3
A high strength tire valve, comprising the steps of:
spraying the strengthening coating for the aluminum alloy inflating valve, and keeping the temperature for 1h at the temperature of 60 ℃ to prepare the highly reliable corrosion-resistant inflating valve.
The reinforced coating comprises the following raw materials in parts by weight: 150 parts of acrylic emulsion, 15 parts of reinforcing filler, 15 parts of talcum powder, 15 parts of propylene glycol butyl ether, 5 parts of sodium dodecyl sulfate, 20 parts of diisooctyl sebacate and 80 parts of water;
the reinforced coating is prepared by the following steps: the raw materials are added into a stirring kettle and stirred for 3-4 hours at the rotating speed of 1500-1800r/min, so as to prepare the reinforced coating.
The reinforcing filler is prepared by the following steps:
step A1: adding graphite, sodium nitrate and concentrated sulfuric acid into a reaction kettle, stirring and adding potassium permanganate under the conditions that the rotating speed is 200r/min and the temperature is 5 ℃, reacting for 3 hours, heating to 40 ℃, stirring for 5 hours, adding deionized water, reacting for 40 minutes under the condition that the temperature is 95 ℃, adding hydrogen peroxide until no bubbles are generated, washing the reaction solution until the reaction solution is free of SO4 2-Performing ion filtration, drying a filter cake to obtain graphene oxide, dispersing the graphene oxide in deionized water, adding tetraethoxysilane, absolute ethyl alcohol and concentrated hydrochloric acid, and stirring for 8 hours at the rotation speed of 300r/min and the temperature of 70 ℃ to obtain modified graphene;
step A2: adding p-methylaniline, toluene, potassium hydroxide, potassium chloride and tetramethylammonium hydroxide into a reaction kettle, reacting for 6 hours at the rotation speed of 200r/min and the temperature of 80 ℃ to obtain an intermediate 1, adding the intermediate 1, nitrogen-bromosuccinimide, benzoyl peroxide and carbon tetrachloride into the reaction kettle, reacting for 10 hours at the temperature of 90 ℃ to obtain an intermediate 1, adding the intermediate 2, potassium carbonate, deionized water and tetraethylammonium bromide into the reaction kettle, and performing reflux reaction for 3 hours to obtain an intermediate 3;
step A3: adding the intermediate 3, phosphorus trichloride and triethylamine into a reaction kettle, reacting for 5 hours at the rotation speed of 200r/min and the temperature of 60 ℃ to obtain an intermediate 4, adding the intermediate 4, hydroquinone, sodium carbonate and toluene into the reaction kettle, reacting for 3 hours at the rotation speed of 300r/min and the temperature of 40 ℃ to obtain an intermediate 5, adding bromopropylene, 2, 6-di-tert-butylphenol, potassium hydroxide and tetrahydrofuran into the reaction kettle, and reacting for 1.5 hours at the temperature of 150 ℃ to obtain an intermediate 6;
step A4: adding the intermediate 6, the intermediate 5, sodium carbonate and toluene into a reaction kettle, reacting for 3 hours at the rotating speed of 300r/min to obtain an intermediate 7, adding the intermediate 7, sulfur, iodine and tetrahydrofuran into the reaction kettle, performing reflux reaction for 5 hours at the temperature of 200 ℃ to obtain an intermediate 8, adding the intermediate 8, bromoethylamine, triethylamine and tetrahydrofuran into the reaction kettle, performing reflux reaction for 3 hours to obtain an intermediate 9, adding the intermediate 9, modified graphene, deionized water and 1-hydroxybenzotriazole into the reaction kettle, reacting for 8 hours at the temperature of 40 ℃, filtering to remove filtrate, and drying a filter cake to obtain the reinforcing filler.
Comparative example 1
This comparative example compares to example 1 without the addition of reinforcing filler and the rest of the procedure is the same.
Comparative example 2
This comparative example did not use a strengthening coating as compared to example 1.
The valves obtained in examples 1 to 3 and comparative examples 1 to 2 were subjected to performance tests, the test results of which are shown in table 1 below;
TABLE 1
From the above table 1, it can be seen that the highly reliable corrosion-resistant inflating valve manufactured in the embodiments 1 to 3 has a good corrosion-resistant effect, and the surface coating has a good aging-resistant effect, so that the inflating valve protection effect is longer.
The foregoing is merely exemplary and illustrative of the principles of the present invention and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the principles of the present invention or exceeding the scope of the claims set forth herein.
Claims (10)
1. A high strength tire valve characterized in that: the method comprises the following steps:
spraying the strengthening coating for the aluminum alloy valve, and keeping the temperature for 1-1.5h at 50-60 ℃ to obtain the highly reliable corrosion-resistant valve.
The reinforced coating comprises the following raw materials in parts by weight: 100-150 parts of acrylic emulsion, 10-15 parts of reinforcing filler, 10-15 parts of talcum powder, 10-15 parts of propylene glycol butyl ether, 1-5 parts of dispersant, 10-20 parts of plasticizer and 50-80 parts of water;
the reinforced coating is prepared by the following steps: the raw materials are added into a stirring kettle and stirred for 3-4 hours at the rotating speed of 1500-1800r/min, so as to prepare the reinforced coating.
2. The high strength tire valve according to claim 1, wherein: the dispersing agent is one or more of sodium oleate, sodium carboxylate and sodium dodecyl sulfate which are mixed in any proportion, and the plasticizer is one or more of diisooctyl sebacate, dibutyl phthalate and dioctyl phthalate which are mixed in any proportion.
3. The high strength tire valve according to claim 1, wherein: the reinforcing filler is prepared by the following steps:
step A1: adding graphite, sodium nitrate and concentrated sulfuric acid into a reaction kettle, stirring and adding potassium permanganate under the conditions that the rotating speed is 150-plus-200 r/min and the temperature is 0-5 ℃, reacting for 2-3h, heating to the temperature of 30-40 ℃, and stirringStirring for 3-5h, adding deionized water, reacting at 90-95 deg.C for 30-40min, adding hydrogen peroxide until no bubbles are generated, washing the reaction solution until no SO is generated in the reaction solution4 2-Performing ion filtration, drying a filter cake to obtain graphene oxide, dispersing the graphene oxide in deionized water, adding tetraethoxysilane, absolute ethyl alcohol and concentrated hydrochloric acid, and stirring for 5-8h at the rotation speed of 200-300r/min and the temperature of 60-70 ℃ to obtain modified graphene;
step A2: adding p-methylaniline, toluene, potassium hydroxide, potassium chloride and tetramethylammonium hydroxide into a reaction kettle, reacting for 4-6h at the rotation speed of 150-200r/min and the temperature of 75-80 ℃ to obtain an intermediate 1, adding the intermediate 1, nitrogen-bromosuccinimide, benzoyl peroxide and carbon tetrachloride into the reaction kettle, reacting for 8-10h at the temperature of 80-90 ℃ to obtain an intermediate 1, adding the intermediate 2, potassium carbonate, deionized water and tetraethylammonium bromide into the reaction kettle, and performing reflux reaction for 2-3h to obtain an intermediate 3;
step A3: adding the intermediate 3, phosphorus trichloride and triethylamine into a reaction kettle, reacting for 3-5h at the rotation speed of 150-;
step A4: adding the intermediate 6, the intermediate 5, sodium carbonate and toluene into a reaction kettle, reacting for 2-3h at the rotation speed of 200-plus-one at 300r/min to obtain an intermediate 7, adding the intermediate 7, sulfur, iodine and tetrahydrofuran into the reaction kettle, performing reflux reaction for 3-5h at the temperature of 180-plus-one at 200 ℃ to obtain an intermediate 8, adding the intermediate 8, bromoethylamine, triethylamine and tetrahydrofuran into the reaction kettle, performing reflux reaction for 2-3h to obtain an intermediate 9, adding the intermediate 9, modified graphene, deionized water and 1-hydroxybenzotriazole into the reaction kettle, reacting for 5-8h at the temperature of 30-40 ℃, filtering to remove filtrate, and drying filter cakes to obtain the reinforcing filler.
4. A high strength tire valve according to claim 3, wherein: the using amount ratio of the graphite, the sodium nitrate, the concentrated sulfuric acid, the potassium permanganate, the deionized water and the hydrogen peroxide in the step A1 is 5g:23g:100mL:25g:150mL:15mL, the mass fraction of the concentrated sulfuric acid is 95%, the using amount ratio of the graphene oxide, the deionized water, the tetraethoxysilane, the absolute ethyl alcohol and the concentrated hydrochloric acid is 5g:50mL:4mL:10mL:10mL, and the mass fraction of the concentrated sulfuric acid is 36%.
5. A high strength tire valve according to claim 3, wherein: the mass ratio of the p-methylaniline, the toluene, the potassium hydroxide, the potassium chloride and the tetramethylammonium hydroxide in the step A2 is 4.3:1:0.15:0.2: 0.5.
6. A high strength tire valve according to claim 3, wherein: in the step A2, the dosage ratio of the intermediate 1, the nitrogen-bromosuccinimide, the benzoyl peroxide and the carbon tetrachloride is 0.1mol:0.1mol:0.15g:300mL, and the dosage ratio of the intermediate 1, the potassium carbonate, the deionized water and the tetraethylammonium bromide is 3.4g:8.5g:80mL:3 mL.
7. A high strength tire valve according to claim 3, wherein: the molar ratio of the intermediate 3, the phosphorus trichloride and the triethylamine in the step A3 is 1:2:1, the molar ratio of the intermediate 4, the hydroquinone and the sodium carbonate is 1:2:2, and the molar ratio of the bromopropylene, the 2, 6-di-tert-butylphenol and the potassium hydroxide is 1:1: 0.1.
8. A high strength tire valve according to claim 3, wherein: the molar ratio of the intermediate 6 to the intermediate 5 to the sodium carbonate in the step A4 is 1:2:2, and the molar ratio of the intermediate 7 to the sulfur to the iodine is 1:2: 0.02.
9. A high strength tire valve according to claim 3, wherein: the molar ratio of the intermediate 8 to the bromoethylamine to the triethylamine is 1:1:1, and the mass ratio of the intermediate 9 to the modified graphene to the 1-hydroxybenzotriazole is 1:5: 0.8.
10. The process for producing a high-strength tire valve according to claim 1, wherein: the method comprises the following steps:
spraying the strengthening coating for the aluminum alloy valve, and keeping the temperature for 1-1.5h at 50-60 ℃ to obtain the highly reliable corrosion-resistant valve.
Priority Applications (1)
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| CN115159851A (en) * | 2022-08-12 | 2022-10-11 | 江苏拜富科技股份有限公司 | Anti-sticking glass glaze for automobiles and preparation method thereof |
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