CN112194961A - Manufacturing method of spraying gel coat and mold - Google Patents
Manufacturing method of spraying gel coat and mold Download PDFInfo
- Publication number
- CN112194961A CN112194961A CN202010854199.XA CN202010854199A CN112194961A CN 112194961 A CN112194961 A CN 112194961A CN 202010854199 A CN202010854199 A CN 202010854199A CN 112194961 A CN112194961 A CN 112194961A
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- epoxy resin
- gel coat
- bisphenol
- agent
- curing agent
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/44—Amides
-
- 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
-
- 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
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2301/00—Inorganic additives or organic salts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2320/00—Organic additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2504/00—Epoxy polymers
-
- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
Abstract
The invention discloses a manufacturing method of a spray gel coat and a mold, which comprises an epoxy resin mixture and a curing agent, wherein the epoxy resin mixture and the curing agent are in a weight ratio of 100:35, and the epoxy resin mixture comprises: 30-50% of bisphenol A epoxy resin, 10-20% of bisphenol F epoxy resin, 3-10% of styrene diluent, 1-3% of fumed silica, 20-40% of 1200-mesh high-white aluminum hydroxide, 1-5% of blue color paste, 1-2% of coupling agent KH550, and 1-1% of defoaming agent BYK5300.5, and 32-1% of anti-sagging agent BYK-4100.5; the curing agent comprises 30-50% of triethylene tetramine, 20-40% of diethyl toluenediamine and 1-5% of salicylic acid and 15-35% of benzyl alcohol. The spray gel coat has good mechanical property, and is suitable for spray coating requirements with higher requirements on curing degree, toughness and impact property temperature resistance.
Description
Technical Field
The application relates to the field of molds, in particular to a spraying gel coat and a mold manufacturing method.
Background
The mold is an important basic process equipment in the manufacturing industry, industrial products can be produced in large scale, new products can be developed without the mold, the level of the mold industry directly restricts the level of the manufacturing industry of a country, and the national strategy of intelligent manufacturing 2025 is an industry taking the manufacturing industry as a core again. The proportion of the related industries driven by the mold industry is about 1:100, namely 1 hundred million yuan is created by the mold industry, and then 100 hundred million yuan is driven by the related industries, the basic core effect of the related industries is more and more prominent, and the related industries are important components of high and new technology and national economy.
At present, glass fiber reinforced plastics have excellent performance and are beneficial to environmental protection, and glass fiber reinforced plastics are used for replacing other materials in various fields of national economy, and the demand tends to expand gradually. The types of products made of glass fiber reinforced plastics are more and more, the sizes of the products are larger and larger, and the requirements on the die are higher and higher.
Therefore, to further improve the quality of the glass fiber reinforced plastic, the quality of the mold is first improved. The mold is characterized by high precision requirement, so that the manufacturing cost of the mold is very high, once the drawing is designed to produce the mold, the mold can be used or directly scrapped, although in some cases, rework can be performed on unqualified molds, but the rework has huge uncertainty, technical difficulty and high cost.
The quality of the die depends on the surface size precision, the surface fineness, the mechanical property, the temperature resistance and the like. The gel coat is a protective coating used on the surface of the glass fiber reinforced plastic die product, has the characteristics of high hardness, heat resistance, wear resistance, good polishability, high glossiness, long service life and the like for better size and surface replication integrity, and plays an important role in enhancing the performance of the die and improving the appearance, so that the good gel coat is of great importance to the glass fiber reinforced plastic die.
The gel coat is a mixture, most of the spray gel coats on the market currently are vinyl resin and unsaturated resin systems, most of the roller coating gel coats are mainly epoxy resin systems, the spray gel coats are generally used for male mold gel coats, and the roller coating gel coats are generally used for female mold gel coat manufacturing. The vinyl resin and unsaturated resin gel coat system products generally do not resist high temperature, generally resist the temperature of about 80 ℃, while the epoxy resin gel coat system can resist the temperature of about 120-200 ℃, more roll-coated epoxy gel coats for female dies are available in the market, and the spray-coated epoxy gel coats are not available basically.
The technical defects of the prior art spray gel coat include low temperature resistance, sand holes in the grinding, low hardness, low surface gloss, delamination, short service life and the like, and the prior art spray gel coat needs to be repaired.
Disclosure of Invention
The invention provides a spray gel coat and a preparation method thereof, the spray gel coat comprises an epoxy resin mixture and a curing agent, the weight ratio of the epoxy resin mixture to the curing agent is 100:35, wherein:
the epoxy resin mixture includes: 30-50% of bisphenol A epoxy resin, 10-20% of bisphenol F epoxy resin, 3-10% of styrene diluent, 1-3% of fumed silica, 20-40% of 1200-mesh high-white aluminum hydroxide, 1-5% of blue color paste, 1-2% of coupling agent KH550, and 1-1% of defoaming agent BYK5300.5, and 32-1% of anti-sagging agent BYK-4100.5;
the curing agent comprises: 30-50% of triethylene tetramine, 20-40% of diethyl toluenediamine and 1-5% of salicylic acid and 15-35% of benzyl alcohol.
Further, the preparation of the epoxy resin mixture comprises the following steps:
(1) preheating bisphenol A epoxy resin and bisphenol F epoxy resin to 50-70 ℃;
(2) mixing and uniformly stirring bisphenol A type epoxy resin, bisphenol F epoxy resin, blue color paste, a coupling agent KH550, a defoaming agent BYK530 and an anti-sagging agent BYK-410;
(3) adding fumed silica and 1200-mesh high-white aluminum hydroxide, and stirring uniformly;
(4) adding a styrene diluent and uniformly stirring;
(5) adjusting the vacuum pressure to be more than 900mbar, and performing vacuum-pumping defoaming;
further, the preparation of the curing agent comprises the following steps:
(1) preheating triethylene tetramine and diethyl toluenediamine to 50-70 ℃;
(2) mixing triethylene tetramine and diethyl toluenediamine, and adding salicylic acid and uniformly stirring in the stirring process;
(3) adding benzyl alcohol and stirring uniformly.
The invention also discloses a manufacturing method of the die, which comprises the following steps:
(1) manufacturing a mould;
(2) spraying the spray coating gel coat on a mould, wherein the spray coating gel coat is the spray coating gel coat in any one of claims 1 to 3, and the sprayed thickness is 0.5-1.0 mm;
(3) and naturally curing the sprayed gel coat.
Further, after the step (3), a heating process is further included, specifically:
(1) heating for 3.5-4.5 hours in an environment of 55-65 ℃;
(2) heating for 3.5-4.5 hours in an environment of 75-85 ℃;
(3) heating for 15-16 hours in an environment of 95-105 ℃.
According to the invention, the epoxy resin mixture used in the application is matched with the curing agent, so that the high-temperature-resistant epoxy gel coat product has good mechanical properties and is suitable for spraying requirements with high requirements on curing degree, toughness and impact performance temperature resistance, and the addition of the curing agent enables the product to be rapidly cured and have high mechanical properties.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a flow chart illustrating the preparation of an epoxy resin mixture according to an embodiment of the present invention.
FIG. 2 is a flow chart of the process for preparing the curing agent according to the embodiment of the present invention.
Detailed Description
The technical solutions of the present invention are described in detail with reference to the drawings and the specific embodiments, and it should be understood that the embodiments and the specific technical features in the embodiments of the present invention are merely illustrative of the technical solutions of the present invention, and are not restrictive, and the embodiments and the specific technical features in the embodiments of the present invention may be combined with each other without conflict.
The application discloses a spraying gel coat, which comprises an epoxy resin mixture and a curing agent, wherein when the spraying gel coat is used, the epoxy resin mixture and the curing agent are mixed according to the weight ratio of 100:35 and are uniformly stirred, when the spraying gel coat is used, a high-pressure spray gun can be used for spraying onto the surface of a product to be sprayed, and after the spraying, the product is generally dried and cured naturally in a normal environment.
The spray gel coat of the present application, wherein the epoxy resin mixture comprises: 30-50% of bisphenol A epoxy resin, 10-20% of bisphenol F epoxy resin, 3-10% of styrene diluent, 1-3% of fumed silica, 20-40% of 1200-mesh high-white aluminum hydroxide, 1-5% of blue color paste, 1-2% of coupling agent KH550, 1-1% of defoaming agent BYK5300.5, and 1-32% of anti-sagging agent BYK-4100.5.
The fumed silica preferably uses German Woodford R202, and the effects of thickening, thixotropy, sagging prevention, settlement prevention and the like are achieved.
The 1200 mesh high whiteness aluminum hydroxide provides the hardness and sandability properties of the gel coat.
The coupling agent KH550 and the defoaming agent BYK530 are used for improving the bonding property and the surface defoaming effect of the product,
the styrene diluent can reduce the viscosity of the epoxy resin mixture after being compounded, and is easy to spray.
Referring to fig. 1, the preparation of the epoxy resin mixture includes the following steps:
(1) preheating bisphenol A epoxy resin and bisphenol F epoxy resin to 50-70 ℃;
(2) mixing and uniformly stirring bisphenol A type epoxy resin, bisphenol F epoxy resin, blue color paste, a coupling agent KH550, a defoaming agent BYK530 and an anti-sagging agent BYK-410, wherein the stirring speed can be set at 1500-2000 rpm, and stirring is carried out for 25-35 minutes;
(3) adding fumed silica and 1200-mesh high-whiteness aluminum hydroxide, uniformly stirring at a rotating speed of 1500-2000 rpm for 15-25 minutes;
(4) adding a styrene diluent, and stirring uniformly at a speed of 800-1000 rpm for 5-10 minutes;
(5) adjusting the vacuum pressure to be more than 900mbar, and performing vacuum-pumping defoaming;
in addition, in order to obtain a better technical effect, the uniform dispersion of the mixed ingredients can be further improved by rolling several times with a machine after the stirring is stopped.
The curing agent of the present application includes: 30-50% of triethylene tetramine, 20-40% of diethyl toluenediamine, 1-5% of salicylic acid and 15-35% of benzyl alcohol.
Referring to fig. 2, the preparation of the curing agent includes the following steps:
(1) firstly, preheating triethylene tetramine and diethyl toluenediamine to 50-70 ℃;
(2) mixing and stirring triethylene tetramine and diethyl toluenediamine, adding salicylic acid while stirring in the stirring process, wherein the salicylic acid is solid powder, is prevented from being agglomerated in the stirring process, and can be stirred at a high speed of 2500-3000 rpm for 30 minutes to further improve the effect after the stirring is uniformly finished, so that the salicylic acid is uniformly dispersed.
(3) Adding benzyl alcohol and uniformly stirring, wherein the speed of stirring the benzyl alcohol is medium speed (800-1000 rpm).
The curing agent of the embodiment promotes the curing to be fast, so that the curing is good after low-temperature curing, the toughness is enhanced, and the brittle falling-off is not easy to occur. The sagging phenomenon is not easy to generate in the post-spraying process after the solidification is accelerated. After curing at normal temperature, the product with the temperature resistance of about 140 ℃ can be obtained through the curing process of 60 ℃ for 4 hours, 80 ℃ for 4 hours and 100 ℃ for 16 hours.
The technical effects obtained by the application are as follows: the epoxy resin mixture used in the application is matched with the curing agent, the normal-temperature curing of the resin can be realized, the gel time is 30-40 min, and the obtained high-temperature-resistant epoxy gel coat product has good mechanical property and is suitable for spraying requirements with high requirements on curing degree, toughness and impact resistance. The addition of the curing agent allows the product to achieve rapid curing and higher mechanical properties.
And the epoxy resin mixture in this application is high temperature resistant, can solve current gel coat temperature resistant low, the easy layering that falls and can only the roller coat's process problem:
firstly, the high temperature resistance improves the performance of the mould, so that the finished product made by the mould obtains higher temperature resistance, thereby avoiding the product quality problem that the finished product deforms due to low temperature resistance because the gel coat is resistant to low temperature and dare to be heated to higher temperature for solidification.
And compared with the existing vinyl resin and unsaturated resin gel coat system products, the epoxy spraying gel coat has higher bonding performance, so that the die products are not easy to fall off between base layers, the reproducibility of the die of the product is enhanced, and the service life is longer.
Thirdly, most of the existing epoxy resin gel coats are construction processes only capable of roller coating and smearing, the process has the defects of time consumption, complex operation, low efficiency, inconsistent roller coating thickness, large environmental pollution and the like, and the epoxy resin gel coats become the sprayable gel coats after the formulation is innovated and improved, so that the epoxy resin gel coats have the advantages of convenience in construction, high efficiency, high surface glossiness, uniform sprayed coatings and the like.
In addition, based on the above spraying gel coat, the application also discloses a manufacturing method of the glass fiber reinforced plastic mold, which comprises the following steps:
(1) manufacturing a mould;
(2) spraying the coating on a mold by using a spraying gel coat, wherein the spraying thickness is 0.5-1.0 mm;
(3) and naturally curing the sprayed gel coat.
More preferably, after the curing by natural air drying, the resin composition may be heated by:
(1) heating for 3.5-4.5 hours in an environment of 55-65 ℃;
(2) heating for 3.5-4.5 hours in an environment of 75-85 ℃;
(3) heating for 15-16 hours in an environment of 95-105 ℃.
After heating, the product with the temperature of about 140 ℃ can be obtained, and thus better temperature resistance strength and mechanical strength can be obtained.
The mould obtained by the manufacturing method greatly improves the dimensional precision, the surface fineness, the mechanical property, the temperature resistance and the like of the surface of the mould.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the application, including the use of specific symbols, labels, or other designations to identify the vertices.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (5)
1. The spray coating gel coat is characterized by comprising an epoxy resin mixture and a curing agent, wherein the epoxy resin mixture and the curing agent are in a weight ratio of 100:35, and the weight ratio of the epoxy resin mixture to the curing agent is as follows:
the epoxy resin mixture includes: 30-50% of bisphenol A epoxy resin, 10-20% of bisphenol F epoxy resin, 3-10% of styrene diluent, 1-3% of fumed silica, 20-40% of 1200-mesh high-white aluminum hydroxide, 1-5% of blue color paste, 1-2% of coupling agent KH550, and 1-1% of defoaming agent BYK5300.5, and 32-1% of anti-sagging agent BYK-4100.5;
the curing agent comprises: 30-50% of triethylene tetramine, 20-40% of diethyl toluenediamine and 1-5% of salicylic acid and 15-35% of benzyl alcohol.
2. The spray gel coat of claim 1 wherein the epoxy resin mixture is prepared by the steps of:
(1) preheating bisphenol A epoxy resin and bisphenol F epoxy resin to 50-70 ℃;
(2) mixing and uniformly stirring bisphenol A type epoxy resin, bisphenol F epoxy resin, blue color paste, a coupling agent KH550, a defoaming agent BYK530 and an anti-sagging agent BYK-410;
(3) adding fumed silica and 1200-mesh high-white aluminum hydroxide, and stirring uniformly;
(4) adding a styrene diluent and uniformly stirring;
(5) and adjusting the vacuum pressure to be more than 900mbar, and vacuumizing and defoaming.
3. The spray gel coat of claim 1 wherein said curing agent is produced by the steps of:
(1) preheating triethylene tetramine and diethyl toluenediamine to 50-70 ℃;
(2) mixing triethylene tetramine and diethyl toluenediamine, and adding salicylic acid and uniformly stirring in the stirring process;
(3) adding benzyl alcohol and stirring uniformly.
4. A method for manufacturing a mold, comprising the steps of:
(1) manufacturing a mould;
(2) spraying the spray coating gel coat on a mould, wherein the spray coating gel coat is the spray coating gel coat in any one of claims 1 to 3, and the sprayed thickness is 0.5-1.0 mm;
(3) and naturally curing the sprayed gel coat.
5. The method of claim 4, further comprising, after step (3), a heating process, in particular:
(1) heating for 3.5-4.5 hours in an environment of 55-65 ℃;
(2) heating for 3.5-4.5 hours in an environment of 75-85 ℃;
(3) heating for 15-16 hours in an environment of 95-105 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010854199.XA CN112194961A (en) | 2020-08-24 | 2020-08-24 | Manufacturing method of spraying gel coat and mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010854199.XA CN112194961A (en) | 2020-08-24 | 2020-08-24 | Manufacturing method of spraying gel coat and mold |
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| Publication Number | Publication Date |
|---|---|
| CN112194961A true CN112194961A (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010854199.XA Pending CN112194961A (en) | 2020-08-24 | 2020-08-24 | Manufacturing method of spraying gel coat and mold |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1421351A (en) * | 2001-11-28 | 2003-06-04 | 周献刚 | Method of making hull of fishing boat and yacht with basalt fiber reinforced material |
| JP2004168829A (en) * | 2002-11-18 | 2004-06-17 | Yaskawa Electric Corp | Epoxy resin composition and vacuum equipment using the same |
| CN104479292A (en) * | 2014-12-05 | 2015-04-01 | 东莞市海旭新材料技术有限公司 | Gel coat resin, gel coat resin system and preparation method of both |
| CN104497496A (en) * | 2014-12-05 | 2015-04-08 | 东莞市海旭新材料技术有限公司 | Resin system applicable to spraying/hand laying-up process and preparation method of resin system |
| CN109988394A (en) * | 2017-12-29 | 2019-07-09 | 比亚迪股份有限公司 | Epoxy resin gel coat composition and epoxy resin composite plate and preparation method |
-
2020
- 2020-08-24 CN CN202010854199.XA patent/CN112194961A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1421351A (en) * | 2001-11-28 | 2003-06-04 | 周献刚 | Method of making hull of fishing boat and yacht with basalt fiber reinforced material |
| JP2004168829A (en) * | 2002-11-18 | 2004-06-17 | Yaskawa Electric Corp | Epoxy resin composition and vacuum equipment using the same |
| CN104479292A (en) * | 2014-12-05 | 2015-04-01 | 东莞市海旭新材料技术有限公司 | Gel coat resin, gel coat resin system and preparation method of both |
| CN104497496A (en) * | 2014-12-05 | 2015-04-08 | 东莞市海旭新材料技术有限公司 | Resin system applicable to spraying/hand laying-up process and preparation method of resin system |
| CN109988394A (en) * | 2017-12-29 | 2019-07-09 | 比亚迪股份有限公司 | Epoxy resin gel coat composition and epoxy resin composite plate and preparation method |
Non-Patent Citations (2)
| Title |
|---|
| DOS SANTOS,AG等: "Study and characterization of epoxy resin composites in gel coat with different contents of inorganic fillers", 《MATERIA-RIO DE JANEIRO》 * |
| 何明: "一种耐高温环氧模具胶衣的配制及其性能研究", 《绿色科技》 * |
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Application publication date: 20210108 |