CN113817431B - Nanometer lining rubber repair paste and preparation process and use method thereof - Google Patents

Nanometer lining rubber repair paste and preparation process and use method thereof Download PDF

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Publication number
CN113817431B
CN113817431B CN202111253714.XA CN202111253714A CN113817431B CN 113817431 B CN113817431 B CN 113817431B CN 202111253714 A CN202111253714 A CN 202111253714A CN 113817431 B CN113817431 B CN 113817431B
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parts
component
rubber
repair paste
lining
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CN113817431A (en
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邱天颂
郭聪德
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Wellable New Materials Engineering Co ltd Shishi
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Wellable New Materials Engineering Co ltd Shishi
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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
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
    • C09J163/10—Epoxy resins modified by unsaturated compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/10—Presence of inorganic materials
    • C09J2400/16—Metal
    • C09J2400/163—Metal in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2409/00—Presence of diene rubber
    • C09J2409/006—Presence of diene rubber in the substrate

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The invention relates to the technical field of anti-corrosion materials and applications, in particular to a nanometer lining adhesive repair paste, a preparation process and a use method thereof, which are characterized in that: comprises a component A and a component B; the component A consists of the following raw materials in parts by weight: 40-70 parts of rubber modified vinyl ester resin, 3-10 parts of methacrylate oligomer, 0.1-0.3 part of amine catalyst, 20-30 parts of vinyl benzene, 5-15 parts of nano silicon dioxide, 0.2-1 part of cobalt naphthenate, 0.5-2 parts of defoamer and 0.5-2 parts of flatting agent; the component B is dibenzoyl peroxide. The nanometer lining rubber repair paste has excellent chemical corrosion resistance, corrosion-resistant medium permeability, high temperature resistance, mechanical strength, wear resistance, excellent flushing resistance, low curing shrinkage, good adhesive force with base materials such as vulcanized rubber, nitrile rubber, carbon steel, stainless steel and the like, is suitable for repairing various lining rubber equipment, is durable and effective, and has low cost and convenient construction.

Description

Nanometer lining rubber repair paste and preparation process and use method thereof
Technical Field
The invention relates to the technical field of anti-corrosion materials and applications, in particular to a nanometer lining rubber repair paste, a preparation process and a use method thereof.
Background
Vulcanized rubber such as nitrile rubber, chloroprene rubber and the like is widely applied to heavy corrosion industries such as petrochemical industry, chemical industry and the like as a heavy corrosion-resistant lining layer (abbreviated as 'lining rubber') of equipment due to excellent corrosion resistance, temperature resistance and mechanical property, and the process is quite mature after decades of development. However, the construction difficulty of the pre-vulcanized rubber plate is high, bubbling is easy in the construction process, and the joint of the rubber plate is easy to crack and separate; meanwhile, the joint is the weakest link of corrosion prevention of the rubber plate, and after a period of use, small-area bubbling and stripping start to appear at the joint and the poor construction position of the rubber plate, so that equipment corrosion perforation is caused; and after the vulcanized rubber is used for a certain period of time, the lining layer with a large area is damaged due to aging.
However, once the vulcanized rubber lining layer has defects such as cracking, separation, bubbling, stripping and breakage, the vulcanized rubber lining layer is difficult to clean and repair. Two traditional repairing processes are adopted, namely, one glue plate is re-adhered at the defect, but the adhesion and compactness between the new glue plate and the old glue plate are poor, corrosive media are easy to permeate from joints, bubbling and stripping are caused, and the process can only be used as a temporary repairing measure in a short period; and secondly, the original rubber lining layer is completely removed, and the whole rubber lining is carried out again, so that the process has extremely high cost and longer construction period.
Therefore, the repair material and the construction method which are durable and effective, low in cost and convenient to construct are sought for solving the problem of urgent need in the industry aiming at the repair problem of the rubber lining equipment.
Disclosure of Invention
It is an object of the present invention to solve at least the above problems by a nano-lined adhesive repair paste.
In order to solve the technical problems, the invention adopts the following technical scheme: the nanometer lining rubber repair paste is characterized in that: comprises a component A and a component B;
the component A consists of the following raw materials in parts by weight: 40-70 parts of rubber modified vinyl ester resin, 3-10 parts of methacrylate oligomer, 0.1-0.3 part of amine catalyst, 20-30 parts of vinyl benzene, 5-15 parts of nano silicon dioxide, 0.2-1 part of cobalt naphthenate, 0.5-2 parts of defoamer and 0.5-2 parts of flatting agent;
the component B consists of the following raw materials in parts by weight: 100% of dibenzoyl peroxide.
Preferably, the component A consists of the following raw materials in parts by weight: 40 parts of rubber modified vinyl ester resin, 3 parts of methacrylate oligomer, 0.1 part of amine catalyst, 20 parts of vinyl benzene, 5 parts of nano silicon dioxide, 0.2 part of cobalt naphthenate, 0.5 part of defoamer and 0.5 part of flatting agent.
Preferably, the component A consists of the following raw materials in parts by weight: 70 parts of rubber modified vinyl ester resin, 10 parts of methacrylate oligomer, 0.3 part of amine catalyst, 30 parts of vinyl benzene, 15 parts of nano silicon dioxide, 1 part of cobalt naphthenate, 0.5 part of defoamer and 0.5 part of flatting agent.
Preferably, the component A consists of the following raw materials in parts by weight: 50 parts of rubber modified vinyl ester resin, 5 parts of methacrylate oligomer, 0.2 part of amine catalyst, 25 parts of vinyl benzene, 10 parts of nano silicon dioxide, 0.5 part of cobalt naphthenate, 1.2 parts of defoamer and 1.2 parts of flatting agent.
The preparation process of the nanometer lining gum repair paste is characterized by comprising the following steps of:
the preparation process of the component A comprises the following steps:
step 1: weighing the following raw materials in percentage by weight: 40-70 parts of rubber modified vinyl ester resin, 3-10 parts of methacrylate oligomer, 0.1-0.3 part of amine catalyst, 20-30 parts of vinyl benzene, 5-15 parts of nano silicon dioxide, 0.2-1 part of cobalt naphthenate, 0.5-2 parts of defoamer and 0.5-2 parts of flatting agent;
step 2: putting the rubber modified vinyl ester resin, the methacrylate oligomer and the amine catalyst weighed in the step 1 into an autoclave, sealing the autoclave and testing pressure, then starting stirring for 50-60r/min, starting heating, vacuumizing, heating to 80-150 ℃ for chain connection reaction, reacting for 10-12 hours, stopping vacuum, starting low-speed stirring for 5-6 hours, cooling to 50 ℃, closing stirring, standing and defoaming for 24 hours to obtain the rubber modified pre-polyester;
step 3: putting 5% -15% of the nano silicon dioxide weighed in the step 1 into a first batching tank, slowly and uniformly adding 20% -30% of vinylbenzene, and standing for 24 hours to obtain a mixture of nano silicon dioxide and vinylbenzene 2;
step 4: then the modified pre-polyester obtained in the step 2 is put into a second batching tank, cobalt naphthenate, a defoaming agent and a leveling agent weighed in the step 1 are put into the tank, high-speed dispersion is started for 800-1200r/min, after continuous stirring for 10-15 min, the mixture of nano silicon dioxide and vinylbenzene 2 which are subjected to standing in the step 3 is put into the tank, high-speed dispersion is started for 300-500r/min, after continuous stirring for 30 min, standing is carried out, cooling to 40 ℃, and discharging is carried out, so that the component A of the NX rubber repair paste is obtained;
the preparation process of the component A comprises the following steps: weighing the raw materials: 100% of dibenzoyl peroxide to obtain the component B of the rubber repair paste.
The application method of the nano lining rubber repair paste is characterized by comprising the following steps of:
s1, carrying out surface treatment on a surface to be repaired;
s2, independently packaging A, B double components, and when the nano rubber repair paste is used, the A component and the B component of the nano rubber repair paste are mixed according to the mass ratio of the A component: component B = 100: (1-3) mixing, starting stirring for 300-600r/min, and continuously stirring for 3-5 minutes, wherein the color is changed from the initial light yellow or light purple to green, so as to judge whether the stirring is uniform, and thus the nano rubber repair paste is obtained;
s3, uniformly smearing the paint along the same direction by using a spatula or a scraper according to a certain angle, compacting and flattening, wherein the maximum single-pass scraping thickness is 2mm, and when the coating thickness is more than 2mm, performing second-pass construction after the first-pass surface is dried, wherein the second-pass brushing direction is mutually perpendicular to the previous-pass coating direction, and pushing until the specified thickness and the required amount are reached;
s4, before the repair paste is solidified, a small amount of diluent can be dipped by a felt roller for gentle rolling, so that the surface is smoother and more attractive.
Preferably, the duty cycle of the B component decreases with increasing temperature; when the temperature is 5 ℃, the component A is prepared from the following components in percentage by mass: component B = 100:3, mixing; at 15 ℃, the component A is prepared from the following components in percentage by mass: component B = 100:2.5, mixing; at the temperature of 25 ℃, the component A is prepared from the following components in percentage by mass: component B = 100:2, mixing; at 35 ℃, the component A is prepared from the following components in percentage by mass: component B = 100:1.5, mixing; at the temperature of 40 ℃, the component A is prepared from the following components in percentage by mass: component B = 100:1, mixing.
Preferably, the construction condition is that the temperature is 5-40 ℃, the surface temperature of the base material is higher than the dew point of 3 ℃, the relative humidity is less than 85%, and the mixing pot life is 20-60min;
the single-pass coating film thickness of the nanometer lining adhesive repair paste is as follows: dry film 0.1-2mm, wet film 0.14-2.7mm;
the drying time is surface drying: 1.5-5h, and drying for 16-48h; surface drying for 5h and real drying for 48h at the temperature of 5 ℃; surface drying for 3h and real drying for 32h at 15 ℃; surface drying for 2h and real drying for 24h at 25 ℃; surface drying for 1.5h and real drying for 16h at 35 ℃;
the coating interval is as follows: the minimum coating interval is 1.5h-5h, and the maximum coating interval is 3-7day; at 5 ℃, the minimum coating interval is 5h, and the maximum coating interval is 7day; at 15 ℃, the minimum coating interval is 3h, and the maximum coating interval is 7day; at 25 ℃, the minimum coating interval is 2h, and the maximum coating interval is 5day; at 35 ℃, the minimum coating interval is 1.5h, and the maximum coating interval is 3day.
The base material applicable to the nano lining rubber repair paste is vulcanized rubber, nitrile rubber, carbon steel and stainless steel.
Preferably, in the step S1, the surface treatment includes: loose or flaked substrates should be shoveled to a firm edge or firm dense layer; polishing the periphery of a region to be repaired and an adjacent region by adopting a power tool to form slope type transition; the cleaning agent is used for wiping to remove greasy dirt and pollutants on the surface of the original base layer, and all surfaces to be repaired should be kept clean and dry without greasy dirt, dust and other chemical media.
Preferably, the power tool is a slope type grinding tool, the slope type grinding tool comprises a shell, a slope type grinding head, a transmission mechanism, a motor, a protection cover, a dust removal channel and a vacuum pump, the slope type grinding head is rotatably arranged on the shell, an outwards protruding grinding tip is arranged in the middle of the slope type grinding head, the motor drives the slope type grinding head to rotate through a transmission system, the protection cover covers the outside of the slope type grinding head, the protection cover is transparent, the dust removal channel is arranged in the protection cover, and the vacuum pump is communicated with the dust removal channel through a pipeline.
From the above description, the nano lining rubber repair paste provided by the invention has the following beneficial effects: the nanometer lining rubber repair paste has excellent chemical corrosion resistance, corrosion-resistant medium permeability, high temperature resistance, mechanical strength, wear resistance, excellent flushing resistance, low curing shrinkage, good adhesive force with base materials such as vulcanized rubber, nitrile rubber, carbon steel, stainless steel and the like, is suitable for repairing various lining rubber equipment, is durable and effective, and has low cost and convenient construction.
Drawings
FIG. 1 is a schematic construction diagram of the nano-rubber lining repair paste of the invention.
Fig. 2 is a schematic diagram of a power tool.
Detailed Description
The invention is further described below by means of specific embodiments.
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in the figure, the nanometer lining rubber repair paste comprises a component A and a component B;
the component A consists of the following raw materials in parts by weight: 40-70 parts of rubber modified vinyl ester resin, 3-10 parts of methacrylate oligomer, 0.1-0.3 part of amine catalyst, 20-30 parts of vinyl benzene, 5-15 parts of nano silicon dioxide, 0.2-1 part of cobalt naphthenate, 0.5-2 parts of defoamer and 0.5-2 parts of flatting agent;
the component B consists of the following raw materials in parts by weight: 100% of dibenzoyl peroxide.
Detailed description of the preferred embodiments
The component A consists of the following raw materials in parts by weight: 40 parts of rubber modified vinyl ester resin, 3 parts of methacrylate oligomer, 0.1 part of amine catalyst, 20 parts of vinyl benzene, 5 parts of nano silicon dioxide, 0.2 part of cobalt naphthenate, 0.5 part of defoamer and 0.5 part of flatting agent.
Second embodiment
The component A consists of the following raw materials in parts by weight: 70 parts of rubber modified vinyl ester resin, 10 parts of methacrylate oligomer, 0.3 part of amine catalyst, 30 parts of vinyl benzene, 15 parts of nano silicon dioxide, 1 part of cobalt naphthenate, 0.5 part of defoamer and 0.5 part of flatting agent.
Detailed description of the preferred embodiments
The component A consists of the following raw materials in parts by weight: 50 parts of rubber modified vinyl ester resin, 5 parts of methacrylate oligomer, 0.2 part of amine catalyst, 25 parts of vinyl benzene, 10 parts of nano silicon dioxide, 0.5 part of cobalt naphthenate, 1.2 parts of defoamer and 1.2 parts of flatting agent.
The nanometer lining rubber repair paste is suitable for a severe heavy-duty corrosion-resistant system, and has excellent chemical corrosion resistance and corrosion-resistant medium permeability and high temperature resistance: the adhesive has the advantages of excellent mechanical strength, wear resistance and flushing resistance, low curing shrinkage, good adhesive force and good adhesive force with base materials such as vulcanized rubber, nitrile rubber, carbon steel, stainless steel and the like at a long-term temperature of 100 ℃ and a short-term temperature of 180 ℃. The adhesive lining device is mainly used for repairing damaged adhesive lining equipment, and can be singly used or used as interface primer between other anti-corrosion materials and the adhesive plate. The appearance of the product is light yellow or light purple paste, and the density is 1.05 to 1.15X103 kg/m3. The products are stored and transported according to national regulations, and the storage environment is dry, cool and ventilated, avoids high temperature and sunlight irradiation and is far away from fire sources. The packaging container should be sealed, and its effective storage period is 6 months at 25deg.C. In a two-component package: 18.5kg is a group, the A component is 18 kg/barrel, and the B component is 0.5 kg/bottle; or 5.2kg as a group, the A component is 5 kg/barrel, and the B component is 0.2 kg/bottle.
In the preparation process of the nano lining rubber repair paste, the preparation process of the component A comprises the following steps:
step 1: weighing the following raw materials in percentage by weight: 40-70 parts of rubber modified vinyl ester resin, 3-10 parts of methacrylate oligomer, 0.1-0.3 part of amine catalyst, 20-30 parts of vinyl benzene, 5-15 parts of nano silicon dioxide, 0.2-1 part of cobalt naphthenate, 0.5-2 parts of defoamer and 0.5-2 parts of flatting agent;
step 2: putting the rubber modified vinyl ester resin, the methacrylate oligomer and the amine catalyst weighed in the step 1 into an autoclave, sealing the autoclave and testing pressure, then starting stirring for 50-60r/min, starting heating, vacuumizing, heating to 80-150 ℃ for chain connection reaction, reacting for 10-12 hours, stopping vacuum, starting low-speed stirring for 5-6 hours, cooling to 50 ℃, closing stirring, standing and defoaming for 24 hours to obtain the rubber modified pre-polyester;
step 3: putting 5% -15% of the nano silicon dioxide weighed in the step 1 into a first batching tank, slowly and uniformly adding 20% -30% of vinylbenzene, and standing for 24 hours to obtain a mixture of nano silicon dioxide and vinylbenzene 2;
step 4: then the modified pre-polyester obtained in the step 2 is put into a second batching tank, cobalt naphthenate, a defoaming agent and a leveling agent weighed in the step 1 are put into the tank, high-speed dispersion is started for 800-1200r/min, after continuous stirring for 10-15 min, the mixture of nano silicon dioxide and vinylbenzene 2 which are subjected to standing in the step 3 is put into the tank, high-speed dispersion is started for 300-500r/min, after continuous stirring for 30 min, standing is carried out, cooling to 40 ℃, and then the material is discharged, so that the NX rubber repair paste A component is obtained;
the preparation process of the component A comprises the following steps: weighing the raw materials: 100% of dibenzoyl peroxide to obtain the component B of the rubber repair paste.
The application method of the nano lining rubber repair paste comprises the following steps:
s1, carrying out surface treatment on a surface to be repaired;
s2, independently packaging A, B double components, and when the nano rubber repair paste is used, the A component and the B component of the nano rubber repair paste are mixed according to the mass ratio of the A component: component B = 100: (1-3) mixing, starting stirring for 300-600r/min, and continuously stirring for 3-5 minutes, wherein the color is changed from the initial light yellow or light purple to green, so as to judge whether the stirring is uniform, and thus the nano rubber repair paste is obtained;
s3, uniformly smearing the paint along the same direction by using a spatula or a scraper according to a certain angle, compacting and flattening, wherein the maximum single-pass scraping thickness is 2mm, and when the coating thickness is more than 2mm, performing second-pass construction after the first-pass surface is dried, wherein the second-pass brushing direction is mutually perpendicular to the previous-pass coating direction, and pushing until the specified thickness and the required amount are reached;
s4, before the repair paste is solidified, a small amount of diluent can be dipped by a felt roller for gentle rolling, so that the surface is smoother and more attractive. The solidification of the product is affected by environmental factors such as temperature, humidity and the like, and a small sample is prepared before the preparation, so that the adding proportion of the component B and the gel time are determined, and the preparation is strictly carried out according to the mark and the specified mixing proportion, so that the glue forming waste is avoided.
The proportion of the component B decreases with the temperature; when the temperature is 5 ℃, the component A is prepared from the following components in percentage by mass: component B = 100:3, mixing; at 15 ℃, the component A is prepared from the following components in percentage by mass: component B = 100:2.5, mixing; at the temperature of 25 ℃, the component A is prepared from the following components in percentage by mass: component B = 100:2, mixing; at 35 ℃, the component A is prepared from the following components in percentage by mass: component B = 100:1.5, mixing; at the temperature of 40 ℃, the component A is prepared from the following components in percentage by mass: component B = 100:1, mixing.
The construction conditions are that the temperature is 5-40 ℃, the surface temperature of the base material is higher than the dew point of 3 ℃, the relative humidity is lower than 85%, and the mixing pot life is 20-60min;
the single-pass coating film thickness of the nanometer lining adhesive repair paste is as follows: dry film 0.1-2mm, wet film 0.14-2.7mm;
the drying time is surface drying: 1.5-5h, and drying for 16-48h; surface drying for 5h and real drying for 48h at the temperature of 5 ℃; surface drying for 3h and real drying for 32h at 15 ℃; surface drying for 2h and real drying for 24h at 25 ℃; surface drying for 1.5h and real drying for 16h at 35 ℃;
the coating interval is as follows: the minimum coating interval is 1.5h-5h, and the maximum coating interval is 3-7day; at 5 ℃, the minimum coating interval is 5h, and the maximum coating interval is 7day; at 15 ℃, the minimum coating interval is 3h, and the maximum coating interval is 7day; at 25 ℃, the minimum coating interval is 2h, and the maximum coating interval is 5day; at 35 ℃, the minimum coating interval is 1.5h, and the maximum coating interval is 3day.
The base material suitable for the nanometer lining rubber repair paste is vulcanized rubber, nitrile rubber, carbon steel and stainless steel.
In step S1, the surface treatment includes: loose or flaked substrates should be shoveled to a firm edge or firm dense layer; polishing the periphery of a region to be repaired and an adjacent region by adopting a power tool to form slope type transition; the cleaning agent is used for wiping to remove greasy dirt and pollutants on the surface of the original base layer, and all surfaces to be repaired should be kept clean and dry without greasy dirt, dust and other chemical media. As shown in fig. 1, a slope transition groove 1 is formed in the repair area, and a nano lining rubber repair paste 2 is filled in the groove.
As shown in fig. 2, the power tool is a slope grinding tool, the slope grinding tool comprises a casing 3, a slope grinding head 4, a transmission mechanism 5, a motor, a protection cover 6, a dust removal channel 7 and a vacuum pump (not shown), the slope grinding head 4 is rotatably arranged on the casing 3, an outwardly protruding grinding tip 41 is arranged in the middle of the slope grinding head 4, the motor drives the slope grinding head 4 to rotate through a transmission system, the protection cover 6 is covered outside the slope grinding head 4, the protection cover 6 is transparent, the dust removal channel 7 is arranged in the protection cover 6, and the vacuum pump is communicated with the dust removal channel 7 through a pipeline. The slope type grinding head 4 cuts a V-shaped notch on the rubber plate, fine scraps are sucked away from the dust removing channel 7 of the protective cover 6 in the cutting process, and the crushing position can be more conveniently observed while the on-site dust pollution is reduced, so that the cutting is more accurate.
The nanometer lining rubber repair paste has excellent chemical corrosion resistance, high temperature resistance (long-term 100 ℃ and short-term 180 ℃), excellent mechanical strength, wear resistance and flushing resistance, low curing shrinkage, good adhesive force with base materials such as vulcanized rubber, nitrile rubber, carbon steel, stainless steel and the like, is suitable for repairing various lining rubber equipment, is durable and effective, and has low cost and convenient construction.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the invention, but that what is not described in detail in this specification belongs to the prior art that is well known to those skilled in the art.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, or detachably connected, disposed, or integrally connected, disposed, for example; the model of the electric appliance provided by the invention is only used as a reference. It is possible for those skilled in the art to replace different types of electrical appliances having the same function according to actual use conditions, and it is possible for those skilled in the art to understand the specific meaning of the above terms in the present invention in a specific case.
The foregoing is merely a few specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modification of the present invention by using the concept should be construed as infringement of the protection scope of the present invention.

Claims (4)

1. The application method of the nanometer lining rubber repair paste is characterized by comprising the following steps: the nanometer lining rubber repair paste comprises a component A and a component B;
the component A consists of the following raw materials in parts by weight: 40-70 parts of rubber modified vinyl ester resin, 3-10 parts of methacrylate oligomer, 0.1-0.3 part of amine catalyst, 20-30 parts of vinyl benzene, 5-15 parts of nano silicon dioxide, 0.2-1 part of cobalt naphthenate, 0.5-2 parts of defoamer and 0.5-2 parts of flatting agent;
the component B consists of the following raw materials in parts by weight: 100% of dibenzoyl peroxide;
the application method of the nanometer lining rubber repair paste comprises the following steps:
s1, carrying out surface treatment on a surface to be repaired;
s2, independently packaging A, B double components, and when the repair paste is used, the A component and the B component of the repair paste are mixed according to the mass ratio A: component B = 100: (1-3) mixing, starting stirring for 300-600r/min, and continuously stirring for 3-5 minutes, wherein the color is changed from the initial light yellow or light purple to green, so as to judge whether the stirring is uniform, and thus the nano lining rubber repair paste is obtained;
s3, uniformly smearing the paint along the same direction by using a spatula or a scraper according to a certain angle, compacting and flattening, wherein the maximum single-pass scraping thickness is 2mm, when the coating thickness is more than 2mm, performing second-pass construction after the first-pass surface is dried, and pushing the paint along the second-pass brushing direction and the previous-pass coating direction to achieve the specified thickness and the required material amount;
s4, dipping a small amount of diluent into a felt roller to lightly roll the repair paste before solidification, so that the surface is smoother and more attractive;
in the step S1, the surface treatment includes: loose or flaked substrates should be shoveled to a firm edge or firm dense layer; polishing the periphery of a region to be repaired and an adjacent region by adopting a power tool to form slope type transition; wiping by adopting a cleaning agent to remove greasy dirt and pollutants on the surface of the original base layer, wherein all surfaces to be repaired are kept clean and dry and are free of greasy dirt, dust and other chemical media;
the power tool is a slope type grinding tool, the slope type grinding tool comprises a shell, a slope type grinding head, a transmission mechanism, a motor, a protective cover, a dust removal channel and a vacuum pump, the slope type grinding head is rotatably arranged on the shell, an outward protruding grinding tip is arranged in the middle of the slope type grinding head, the motor drives the slope type grinding head to rotate through a transmission system, the protective cover is covered outside the slope type grinding head, the protective cover is transparent, the dust removal channel is arranged in the protective cover, and the vacuum pump is communicated with the dust removal channel through a pipeline.
2. The method for using the nano lining adhesive repair paste according to claim 1, wherein the method comprises the following steps: the component A consists of the following raw materials in parts by weight: 40 parts of rubber modified vinyl ester resin, 3 parts of methacrylate oligomer, 0.1 part of amine catalyst, 20 parts of vinyl benzene, 5 parts of nano silicon dioxide, 0.2 part of cobalt naphthenate, 0.5 part of defoamer and 0.5 part of flatting agent.
3. The method for using the nano lining adhesive repair paste according to claim 1, wherein the method comprises the following steps: the component A consists of the following raw materials in parts by weight: 70 parts of rubber modified vinyl ester resin, 10 parts of methacrylate oligomer, 0.3 part of amine catalyst, 30 parts of vinyl benzene, 15 parts of nano silicon dioxide, 1 part of cobalt naphthenate, 0.5 part of defoamer and 0.5 part of flatting agent.
4. The method for using the nano lining adhesive repair paste according to claim 1, wherein the method comprises the following steps: the component A consists of the following raw materials in parts by weight: 50 parts of rubber modified vinyl ester resin, 5 parts of methacrylate oligomer, 0.2 part of amine catalyst, 25 parts of vinyl benzene, 10 parts of nano silicon dioxide, 0.5 part of cobalt naphthenate, 1.2 parts of defoamer and 1.2 parts of flatting agent.
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