CN110790868A - Repairing resin for glass fiber reinforced plastic lead-acid storage battery shell and application thereof - Google Patents

Repairing resin for glass fiber reinforced plastic lead-acid storage battery shell and application thereof Download PDF

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Publication number
CN110790868A
CN110790868A CN201911036365.9A CN201911036365A CN110790868A CN 110790868 A CN110790868 A CN 110790868A CN 201911036365 A CN201911036365 A CN 201911036365A CN 110790868 A CN110790868 A CN 110790868A
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China
Prior art keywords
shell
glass fiber
resin
reinforced plastic
fiber reinforced
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CN201911036365.9A
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Chinese (zh)
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程浩
张凯
王亚飞
韩霞
江金
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HUBEI GREATSEA NEWPOWER TECHNOLOGY Co Ltd
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HUBEI GREATSEA NEWPOWER TECHNOLOGY Co Ltd
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Priority to CN201911036365.9A priority Critical patent/CN110790868A/en
Publication of CN110790868A publication Critical patent/CN110790868A/en
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
    • C08F283/01—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to unsaturated polyesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • 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
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • 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
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/06—Lead-acid accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2265—Oxides; Hydroxides of metals of iron
    • C08K2003/2272—Ferric oxide (Fe2O3)
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Electrochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

The invention discloses a repair resin for a glass fiber reinforced plastic lead-acid storage battery shell, which is prepared from resin, a curing agent, an auxiliary agent and pigment. The repairing resin for the glass fiber reinforced plastic lead-acid storage battery shell provided by the invention is used for repairing the defect of the glass fiber reinforced plastic lead-acid storage battery shell, so that the quality of battery shell products and the qualification rate of products in whole batch are improved.

Description

Repairing resin for glass fiber reinforced plastic lead-acid storage battery shell and application thereof
Technical Field
The invention relates to battery shell repair, in particular to a repair resin for a glass fiber reinforced plastic lead acid storage battery shell and application thereof.
Background
Due to the particularity of the use environment of the large lead-acid storage battery, the battery shell of the large lead-acid storage battery is generally made of glass fiber reinforced plastic at present. The blank of the product needs to be processed in the forming process of the glass fiber reinforced plastic product, and the condition that the part of the product needs to be repaired inevitably occurs. Meanwhile, due to the difference of the working procedures, various defects such as flash, unsmooth surface, bubbles and the like may be generated, thereby causing poor appearance of the product.
The existing repairing method is generally that a layer of repairing material is directly coated on a part to be repaired, so that the thickness of a shell of the part to be repaired is increased, and the appearance of a product at the repaired part is inconsistent with that of a product at a part which is not repaired; on the other hand, direct application of the repair material also causes problems with the deterioration of the mechanical properties of the shell for parts of the article.
Disclosure of Invention
The invention aims to overcome the technical defects, provides a repair resin for a glass fiber reinforced plastic lead-acid storage battery shell and application thereof, and solves the technical problems that the repaired part and the unrepaired part are inconsistent in appearance and the mechanical property of a product is poor after the repair by the conventional repair method.
In order to achieve the technical purpose, the invention adopts the technical scheme that:
in a first aspect, the invention provides a repair resin for a glass fiber reinforced plastic lead-acid storage battery shell, which is prepared from resin, a curing agent, an auxiliary agent and pigment.
In a second aspect, the invention provides an application of a repair resin for a glass fiber reinforced plastic lead-acid battery shell, the application of the repair resin for the glass fiber reinforced plastic lead-acid battery shell is to repair the glass fiber reinforced plastic lead-acid battery shell, and the repair process comprises the following steps:
and preparing the repair resin of the glass fiber reinforced plastic lead acid storage battery shell, polishing the part of the shell to be repaired, coating the repair resin of the glass fiber reinforced plastic lead acid storage battery shell on the polished part, and curing and repairing.
Compared with the prior art, the invention has the beneficial effects that: the repairing resin for the glass fiber reinforced plastic lead-acid storage battery shell provided by the invention is used for repairing the defect of the glass fiber reinforced plastic lead-acid storage battery shell, so that the quality of battery shell products and the qualification rate of products in whole batch are improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In a first aspect, the invention provides a repair resin for a glass fiber reinforced plastic lead-acid storage battery shell, which is prepared from resin, a curing agent, an auxiliary agent and pigment.
In some embodiments, the resin comprises an unsaturated polyester resin, the curing agent comprises methyl ethyl ketone peroxide, the additive comprises a cobalt naphthenate styrene solution, and the pigment comprises iron red; the repair resin for the glass fiber reinforced plastic lead-acid storage battery shell is prepared by mixing the following raw materials in parts by mass:
100 parts of unsaturated polyester resin, 0.5-2 parts of cobalt naphthenate styrene solution, 1.5 parts of methyl ethyl ketone peroxide and 2 parts of iron oxide red, wherein the mass concentration of the cobalt naphthenate styrene solution is 10%.
In other embodiments, raw materials having similar properties may be selected as the unsaturated polyester resin according to actual requirements, and are not limited herein.
In some embodiments, the resin comprises an epoxy resin, the curing agent comprises methylhexahydrophthalic anhydride, the adjuvant comprises benzyl alcohol, and the pigment comprises iron red; the repair resin for the glass fiber reinforced plastic lead-acid storage battery shell is prepared by mixing the following raw materials in parts by mass:
100 parts of epoxy resin, 20-40 parts of methyl hexahydrophthalic anhydride, 1 part of benzyl alcohol and 2 parts of iron oxide red, wherein the type of the epoxy resin is epoxy resin CYD 128.
In the invention, the unsaturated resin system and the epoxy resin are used for repairing the defects of the shell, and the cured resin has excellent mechanical property and good chemical stability.
In the invention, iron oxide red is added into the formula of the repair resin of the glass fiber reinforced plastic lead acid storage battery shell, so that the color of the part coated with the repair resin of the glass fiber reinforced plastic lead acid storage battery shell is consistent with the color of the part of the shell which is not repaired, and the overall appearance of the product is improved.
In a second aspect, the invention provides an application of a repair resin for a glass fiber reinforced plastic lead-acid battery shell, the application of the repair resin for the glass fiber reinforced plastic lead-acid battery shell is to repair the glass fiber reinforced plastic lead-acid battery shell, and the repair process comprises the following steps:
s1, preparing the repair resin of the glass fiber reinforced plastic lead acid storage battery shell;
s2, grinding the part of the shell to be repaired;
s3, coating the repair resin of the glass fiber reinforced plastic lead acid storage battery shell on the polished part;
s4: and (5) curing and repairing.
According to the invention, the situation that the height of the repaired part is inconsistent with that of the unrepaired part due to the fact that the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell is directly coated is avoided by polishing the part to be repaired of the shell, and the overall appearance of the product is improved.
It should be noted that in the above steps, the sequence of S1 and S2 may be changed, that is, the repair resin of the glass fiber reinforced plastic lead acid battery case is firstly prepared and then the portion of the case to be repaired is ground, and the repair resin of the glass fiber reinforced plastic lead acid battery case is also prepared after the portion of the case to be repaired is ground.
In some embodiments, the portion of the shell to be repaired includes shell flash, a non-smooth portion of the shell surface, and a bubble defect area on the shell surface.
In some embodiments, when the portion of the casing to be repaired is a flash of the casing and a rough surface of the casing, the step of polishing the portion of the casing to be repaired specifically comprises: and (3) polishing the part to be repaired of the shell smoothly by using sand paper, wherein the sand paper is any combination of 120#, 220#, 400# dry grinding sand paper and 800# water grinding sand paper. In the actual polishing process, the part to be repaired of the shell is sequentially polished by using abrasive paper with different meshes according to needs, the polishing sequence is from small to large according to the mesh number of the abrasive paper, and finally the shell to be repaired is polished smoothly by using 800# water-grinding abrasive paper. If the part of the shell to be repaired is the shell flash, the flash needs to be cut off along the shell by a knife before polishing.
In some embodiments, when the part of the casing to be repaired is a casing flash and a casing surface is not smooth, the step of coating the repair resin on the polished part of the casing of the glass fiber reinforced plastic lead acid storage battery is specifically as follows: and dipping a small amount of the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell by cotton cloth and smearing the repair resin on the polished part, so that the color of the polished part is consistent with that of the whole shell.
The two defects are not related to the inner layer of the shell, the repairing modes of the two defects only need to polish the redundant part or the unsmooth part of the outer surface of the shell, and then the repairing resin of the glass fiber reinforced plastic lead-acid storage battery shell is coated, so that the repairing process is simple, and the repairing effect is good.
In some embodiments, when the portion to be repaired of the housing is a bubble defect region on the surface of the housing, the step of polishing the portion to be repaired of the housing specifically comprises: and (4) polishing off the bubble defect area on the surface of the shell by using an angle grinder to install a louver blade.
In some embodiments, when the portion to be repaired of the casing is a bubble defect region on the surface of the casing, the step of coating the repair resin on the polished portion of the casing of the glass fiber reinforced plastic lead acid storage battery specifically comprises: and laying a layer of glass fiber cloth on the polished part and coating a layer of resin, and repeating for many times until the polished part is slightly higher than the surface of the non-polished part. In the process, air bubbles between the glass fiber cloth layers need to be removed, and the next layer of glass fiber cloth is laid after the glass fiber cloth is completely soaked in the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell. The glass fiber cloth has good insulation, strong heat resistance, good corrosion resistance and high mechanical strength, and can be used for manufacturing glass fiber reinforced plastic products. The glass fiber cloth is laid in the bubble defect area on the surface of the shell which is ground off, and the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell is matched, so that the mechanical property of the repaired shell is improved conveniently, and the appearance of the product is improved.
In some embodiments, when the portion of the casing to be repaired is a bubble defect region on the surface of the casing, the curing and repairing step further includes: and repeating the steps of polishing the part to be repaired of the shell, coating the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell on the polished part and curing and repairing until the shell is flat and smooth. After the curing and repairing step is finished, the concrete steps of polishing the part of the shell to be repaired and coating the polished part with the repairing resin of the glass fiber reinforced plastic lead-acid storage battery shell are as follows: and (3) polishing the part to be repaired of the shell by using sand paper to ensure that the part to be repaired of the shell is flat and smooth, soaking a small amount of the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell by using cotton cloth after cleaning and drying, and coating the polished part with the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell.
For repairing the bubble defect area on the surface of the shell, if a layer of the repairing resin of the glass fiber reinforced plastic lead-acid storage battery shell is simply coated, the repairing effect is poor, and the mechanical property of the product is influenced due to the existence of bubbles. Therefore, in order to achieve a better repairing effect, the bubble defect area on the surface of the shell needs to be polished and removed, and the mechanical property of the product is improved by alternately laying glass fiber cloth and the repairing resin of the glass fiber reinforced plastic lead-acid storage battery shell; meanwhile, the height of the laid glass fiber cloth and the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell is slightly higher than that of the unrepaired part, so that the repaired part can be conveniently treated again, and the appearance of the repaired part is further improved.
In some embodiments, after the sanding process is completed, the shell repair site is washed with water and then dried after wiping with cotton cloth.
In some embodiments, the curing and repairing step is specifically: and (3) heating and curing by using an oven or naturally curing at normal temperature.
Example 1
Embodiment 1 provides a method for repairing a battery case flash, including the steps of:
adding 1000g of unsaturated polyester resin and 5g to 20g of styrene solution of 10 mass percent cobalt naphthenate into a beaker, stirring with a glass rod for 5 to 10 minutes to uniformly mix the unsaturated polyester resin and the styrene solution, then adding 20g of iron oxide red pigment, and stirring for 5 to 10 minutes to uniformly disperse the pigment in the resin; and finally, adding 20g of methyl ethyl ketone peroxide, mixing and stirring for 5-10 minutes to obtain the repair resin for the glass fiber reinforced plastic lead-acid storage battery shell.
For the flash of the battery shell, firstly cutting off the redundant part of the flash along the die closing seam by a small knife; then, after the surface is polished to be approximately flat by using No. 220 abrasive paper, the No. 400 abrasive paper is replaced for polishing, then, the No. 800 abrasive paper is used for polishing until the surface is smooth, and the polished part is cleaned by water; after natural airing, a small amount of prepared repair resin of the glass fiber reinforced plastic lead-acid storage battery shell is dipped by cotton cloth and smeared on a polished part, and the part with inconsistent surface color after polishing is covered, so that the product has uniform color; and finally, putting the product coated with the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell into an oven, baking for 3 hours at the temperature of 80-85 ℃, and completing repair after complete curing.
Example 2
Embodiment 2 provides a method for repairing a rough surface of a housing, including the steps of:
the method for preparing the repair resin for the glass fiber reinforced plastic lead-acid storage battery shell adopted in the method is completely consistent with that of the embodiment 1, and detailed description is omitted.
For the unsmooth part of the surface of the shell, firstly polishing the part to be polished by using No. 120 abrasive paper, roughly flattening the part to be polished, sequentially polishing the part by using No. 220 abrasive paper and No. 400 abrasive paper, then polishing the part by using No. 800 water-milled abrasive paper, cleaning and naturally airing the part; dipping a small amount of repair resin of the glass fiber reinforced plastic lead-acid storage battery shell by using cotton cloth, and smearing the repair resin at a polished position to cover an area with inconsistent color at the polished position; and finally, placing the product coated with the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell into an oven, baking for 3 hours at the temperature of 80-85 ℃, and completing repair after complete curing.
Example 3
Embodiment 3 provides a method for repairing a bubble defect region on a surface of a housing, including the following steps:
the method for preparing the repair resin for the glass fiber reinforced plastic lead-acid storage battery shell adopted in the method is completely consistent with that of the embodiment 1, and detailed description is omitted.
For the bubble defect area on the surface of the shell, firstly, cleaning the solidified resin in the defect area by using an angle grinder provided with louver blades; laying glass fiber cloth on the cleaned part, sucking a small amount of repair resin of the glass fiber reinforced plastic lead-acid storage battery shell by a dropper, dripping the repair resin on the glass fiber cloth, pressing the glass fiber cloth by a thin iron rod to enable the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell to be completely soaked in the glass fiber cloth, and repeating the procedures of laying the glass fiber cloth and dripping the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell until the repair part is slightly higher than the surface of the product; placing a product which is paved with glass fiber cloth and is dropwise added with repair resin of a glass fiber reinforced plastic lead-acid storage battery shell into an oven, and baking for 3 hours at the temperature of 80-85 ℃; taking out the product, and sequentially polishing the product by using No. 120, No. 220, No. 400 dry-grinding sand paper and No. 800 water-grinding sand paper to ensure that the surface of the product is smooth; after cleaning and airing, coating the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell again; and after the repairing resin of the glass fiber reinforced plastic lead-acid storage battery shell is completely cured, completing repairing.
Example 4
Embodiment 4 provides a method for repairing a battery case flash, including the steps of:
adding 1000g of epoxy resin CYD128, 10g of benzyl alcohol and 20g of iron oxide red pigment into a beaker, and stirring with a glass rod for 5-10 minutes to uniformly mix the materials; and then adding 300-400 g of methyl hexahydrophthalic anhydride, mixing and stirring for 5-10 minutes to obtain the repair resin for the glass fiber reinforced plastic lead acid storage battery shell.
For the flash of the battery shell, firstly cutting off the redundant part of the flash along the die closing seam by a small knife; then, after the surface is polished to be approximately flat by using No. 220 abrasive paper, the No. 400 abrasive paper is replaced for polishing, then, the No. 800 abrasive paper is used for polishing until the surface is smooth, and the polished part is cleaned by water; after natural airing, a small amount of prepared repair resin of the glass fiber reinforced plastic lead-acid storage battery shell is dipped by cotton cloth and smeared on a polished part, and the part with inconsistent surface color after polishing is covered, so that the product has uniform color; and finally, placing the product coated with the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell for more than 12h at normal temperature, and completing repair after the product is completely cured.
Example 5
Embodiment 5 provides a method for repairing a rough surface of a housing, comprising the steps of:
the method for preparing the repair resin for the glass fiber reinforced plastic lead-acid storage battery shell adopted in the method is completely consistent with that of the embodiment 4, and the detailed description is omitted.
For the unsmooth part of the surface of the shell, firstly polishing the part to be polished by using No. 120 abrasive paper, roughly flattening the part to be polished, sequentially polishing the part by using No. 220 abrasive paper and No. 400 abrasive paper, then polishing the part by using No. 800 water-milled abrasive paper, cleaning and naturally airing the part; dipping a small amount of repair resin of the glass fiber reinforced plastic lead-acid storage battery shell by using cotton cloth, and smearing the repair resin at a polished position to cover an area with inconsistent color at the polished position; finally, the mixture is placed for more than 12 hours at normal temperature, and after the mixture is completely cured, the repair is finished.
Example 6
Embodiment 6 provides a method for repairing a bubble defect region on a surface of a housing, including the following steps:
the method for preparing the repair resin for the glass fiber reinforced plastic lead-acid storage battery shell adopted in the method is completely consistent with that of the embodiment 4, and the detailed description is omitted.
For the bubble defect area on the surface of the shell, firstly, cleaning the solidified resin in the defect area by using an angle grinder provided with louver blades; laying glass fiber cloth on the cleaned part, sucking a small amount of repair resin of the glass fiber reinforced plastic lead-acid storage battery shell by a dropper, dripping the repair resin on the glass fiber cloth, pressing the glass fiber cloth by using a thin iron rod to enable the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell to be completely soaked in the glass fiber cloth, and repeating the procedures of laying the glass fiber cloth and dripping the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell until the repair part is slightly higher than the surface of a product; then standing at normal temperature for more than 12h to solidify; after the product is completely cured, taking out the product, and sequentially polishing the product by using No. 120, No. 220, No. 400 dry-grinding abrasive paper and No. 800 water-grinding abrasive paper to ensure that the surface of the product is smooth; after cleaning and airing, coating the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell again; and after the repairing resin of the glass fiber reinforced plastic lead-acid storage battery shell is completely cured, completing repairing.
Compared with the prior art, the invention has the beneficial effects that: the repairing resin for the glass fiber reinforced plastic lead-acid storage battery shell provided by the invention is used for repairing the defect of the glass fiber reinforced plastic lead-acid storage battery shell, so that the quality of battery shell products and the qualification rate of products in whole batch are improved.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The repair resin for the glass fiber reinforced plastic lead-acid storage battery shell is characterized by being prepared from resin, a curing agent, an auxiliary agent and pigment.
2. The repair resin for a glass fiber reinforced plastic lead acid battery case according to claim 1, wherein the resin comprises an unsaturated polyester resin, the curing agent comprises methyl ethyl ketone peroxide, the additive comprises cobalt naphthenate styrene solution, and the pigment comprises iron red; the repair resin for the glass fiber reinforced plastic lead-acid storage battery shell is prepared by mixing the following raw materials in parts by mass:
100 parts of unsaturated polyester resin, 1.5 parts of methyl ethyl ketone peroxide, 0.5-2 parts of cobalt naphthenate styrene solution and 2 parts of iron oxide red; wherein the mass concentration of the cobalt naphthenate styrene solution is 10 percent.
3. The repair resin for a glass fiber reinforced plastic lead acid battery case according to claim 1, wherein the resin comprises an epoxy resin, the curing agent comprises methyl hexahydrophthalic anhydride, the auxiliary agent comprises benzyl alcohol, and the pigment comprises iron red; the repair resin for the glass fiber reinforced plastic lead-acid storage battery shell is prepared by mixing the following raw materials in parts by mass:
100 parts of epoxy resin, 20-40 parts of methyl hexahydrophthalic anhydride, 1 part of benzyl alcohol and 2 parts of iron oxide red.
4. The use of the resin for repairing a glass reinforced plastic lead acid battery case according to any one of claims 1 to 3, wherein the resin for repairing a glass reinforced plastic lead acid battery case is used for repairing the glass reinforced plastic lead acid battery case, and the repairing process comprises the steps of:
and preparing the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell, polishing the part of the shell to be repaired, coating the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell on the polished part, and curing and repairing.
5. The use of the repair resin for a glass fiber reinforced plastic lead-acid battery case according to claim 4, wherein the portions of the case to be repaired comprise case flash, case surface non-smoothness portions and case surface bubble defect areas.
6. The application of the repair resin for the glass fiber reinforced plastic lead-acid storage battery shell according to claim 5, wherein when the part to be repaired of the shell is the shell flash and the unsmooth part of the shell surface, the step of polishing the part to be repaired of the shell specifically comprises the following steps: and (3) polishing the part to be repaired of the shell smoothly by using sand paper, wherein the sand paper is any combination of 120#, 220#, 400# dry grinding sand paper and 800# water grinding sand paper.
7. The application of the repairing resin for the glass fiber reinforced plastic lead-acid battery shell according to claim 5, wherein when the part to be repaired of the shell is the shell flash and the unsmooth part of the shell surface, the step of coating the repairing resin for the glass fiber reinforced plastic lead-acid battery shell on the polished part is specifically as follows: and dipping a small amount of the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell by cotton cloth and coating the polished part to ensure that the color of the polished part is consistent with that of the whole shell.
8. The application of the repair resin for the glass fiber reinforced plastic lead-acid storage battery shell according to claim 5, wherein when the part to be repaired of the shell is the bubble defect area on the surface of the shell, the step of grinding the part to be repaired of the shell specifically comprises the following steps: and (4) polishing off the bubble defect area on the surface of the shell by using an angle grinder to install a louver blade.
9. The application of the repairing resin for the glass fiber reinforced plastic lead-acid battery shell according to claim 5, wherein when the part to be repaired of the shell is the bubble defect area on the surface of the shell, the step of coating the repairing resin for the glass fiber reinforced plastic lead-acid battery shell on the polished part is as follows: and laying a layer of glass fiber cloth on the polished part and coating a layer of resin, and repeating for multiple times until the polished part is flush with the surface of the adjacent non-polished part.
10. The application of the repairing resin for the glass fiber reinforced plastic lead-acid storage battery shell according to claim 5, wherein when the part of the shell to be repaired is the bubble defect area on the surface of the shell, the step of curing and repairing further comprises the following steps: and repeating the steps of polishing the part to be repaired of the shell, coating the repair resin of the glass fiber reinforced plastic lead-acid storage battery shell on the polished part and curing and repairing until the shell is flat and smooth.
CN201911036365.9A 2019-10-29 2019-10-29 Repairing resin for glass fiber reinforced plastic lead-acid storage battery shell and application thereof Pending CN110790868A (en)

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CN107215050A (en) * 2016-03-22 2017-09-29 河南冰熊冷藏汽车有限公司 A kind of fiberglass gel coat plate and preparation method thereof
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