CN109321102A - A kind of gel coat and its preparation method and application for epoxy resin composite material surface - Google Patents
A kind of gel coat and its preparation method and application for epoxy resin composite material surface Download PDFInfo
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- CN109321102A CN109321102A CN201811183188.2A CN201811183188A CN109321102A CN 109321102 A CN109321102 A CN 109321102A CN 201811183188 A CN201811183188 A CN 201811183188A CN 109321102 A CN109321102 A CN 109321102A
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- Prior art keywords
- gel coat
- composite material
- epoxy resin
- weight
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Classifications
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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
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- 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
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
Abstract
The present invention provides a kind of gel coats for epoxy resin composite material surface, are prepared by the mill base of the unsaturated polyester resin of 100 parts by weight, the defoaming agent of 0.1-0.5 parts by weight, the fumed silica of 1.0-3.0 parts by weight, the styrene of 20-40 parts by weight, the solution containing 0.012-0.03 parts by weight cobalt iso-octoate, the paraffin of 0.05-2.0 parts by weight and 5-30 parts by weight.Additionally provide the preparation method of above-mentioned gel coat, defoaming agent, fumed silica are added into unsaturated polyester resin, high speed dispersion to fineness is less than 40um, adds styrene, cobalt iso-octoate solution, thawing paraffin and mill base, stir evenly i.e. obtain required for gel coat.Additionally provide purposes of the above-mentioned gel coat as epoxy resin composite material surface covering.The present invention solves the problems, such as that common unsaturated polyester (UP) gel coat and epoxy resin composite material are not bonded.
Description
Technical field
The invention belongs to chemical fields, are related to a kind of coating material, specifically a kind of to be used for epoxy resin composite wood
Expect the gel coat and its preparation method and application on surface.
Background technique
Composite material surface is to obtain composite material high-quality surface and assign product beauty and weather-proof water-fast with gel coat
The very important coating material of protection.Unsaturated polyester (UP) gel coat is with its excellent weather-proof water-fast and sun-proof characteristic such as not easy to change
Using unsaturated polyester resin as the simple glass steel part field of matrix, there is universal application.And it is high-strength in needs
Spend high-modulus composite material ships and light boats, the fields such as blade of wind-driven generator, using epoxy resin as the composite material of matrix apply compared with
Extensively, but since common unsaturated polyester (UP) gel coat is in tacky form and epoxy because surface can not be fully cured in construction
Resin base material can not good bonding.And the bonding force for using the gel coat of epoxy resin-base production although to have, but asphalt mixtures modified by epoxy resin
The not sun-proof easy jaundice discoloration of rouge gel coat, viscosity is not easy greatly deaeration, and there are the holidays such as pin hole, can not effectively use.
Summary of the invention
For above-mentioned technical problem in the prior art, the present invention provides one kind to be used for epoxy resin composite material surface
Gel coat and its preparation method and application, this gel coat and preparation method thereof for epoxy resin composite material surface
Epoxy resin gel coat in the prior art is solved intolerant to easily jaundice discoloration is shone with application, and viscosity is not easy greatly deaeration, and there are pin holes etc.
Holiday, the technical issues of can not effectively using.
The present invention provides a kind of gel coats for epoxy resin composite material surface, are prepared by the raw material of following parts by weight
It forms:
Unsaturated polyester resin 100；
Defoaming agent 0.1-0.5；
Fumed silica 1.0-3.0；
Styrene 20- 40；
Cobalt iso-octoate solution, in the cobalt iso-octoate solution, the weight of cobalt iso-octoate is 0.03 parts by weight of 0.012-；
Paraffin 0.05-2.0；
Mill base 5-30；
Further, the unsaturated polyester resin be m-phthalate unsaturated polyester resin, metaphenylene unsaturated polyester resin,
Any one in terephthalic unsaturated polyester resin, neopentyl glycol type unsaturated polyester resin or vinylite.
Further, the fumed silica is the fumed silica of 100-400m2/g.
Further, the defoaming agent is the trade mark BYK A501 or BYK of Bick chemical company production
A555, the trade mark EFKA PB 2720 of BASF AG's production or the trade mark of angstrom husband Kona auxiliary agent Co., Ltd production
One of AFCONA 7200.
Further, the mass percent concentration of the cobalt iso-octoate solution is 12%.
Further, the paraffin is solid paraffin of the melting range at 40-80 DEG C.
Further, the mill base is containing titanium dioxide, carbon black, phthalein blueness pigment, iron oxide red, iron oxide yellow, chromium oxide
Any one in the unsaturated polyester resins mill base such as green, quinacridone or two or more mixtures.
Further, the unsaturated polyester resin is m-phthalate unsaturated polyester resin, metaphenylene unsaturated polyester (UP)
Any one in resin, terephthalic unsaturated polyester resin, neopentyl glycol type unsaturated polyester resin or vinylite.
The present invention also provides the preparation methods of the above-mentioned gel coat for epoxy resin composite material surface, including walk as follows
It is rapid:
1) each reaction raw materials are weighed according to parts by weight；
2) defoaming agent, fumed silica are added into unsaturated polyester resin, high speed dispersion to fineness is less than 40um, adds
Styrene, cobalt iso-octoate solution, thawing paraffin and mill base, stir evenly i.e. obtain required for gel coat.
The present invention also provides the above-mentioned gel coats for epoxy resin composite material surface as epoxy resin composite material
The purposes of surface covering.
The present invention by addition melting range 40-80 DEG C paraffin to unsaturated polyester (UP) gel coat formula in, consolidate gel coat
The cere to form barrier air is precipitated from gel coat surface for paraffin when change, improves gel coat surface curing degree.Pasting epoxy resin
When composite material, epoxy resin can be bonded with the gel coat face of good solidification, so that weather-proof water-fast polyester gel coat be allow to answer
It is made for epoxy resin composite material product.And when commonly unsaturated polyester (UP) gel coat solidifies in air, surface is by oxygen
Polymerization inhibitor solidification is bad and tacky, causes subsequent epoxy resin substrate poor attachment.
The present invention is compared with prior art, and technological progress is significant.The present invention is matched using paraffin wax additives to gel coat
Solve the problems, such as that common unsaturated polyester (UP) gel coat and epoxy resin composite material are not bonded in side.
Specific embodiment
Embodiment 1
The present invention provides a kind of gel coats for epoxy resin composite material surface, by the raw material preparation of following parts by weight
At:
Metaphenylene unsaturated polyester resin 100；
Defoaming agent BYK A555 0.5；
Fumed silica 2.0；
Styrene 30；
The cobalt iso-octoate solution 0.2 that mass percent concentration is 12%；
Paraffin 0.5；
Titanium white mill base 10；
The present invention also provides the preparation methods of the above-mentioned gel coat for epoxy resin composite material surface, include the following steps:
1) each reaction raw materials are weighed according to parts by weight；
2) defoaming agent, fumed silica are added into unsaturated polyester resin, high speed dispersion to fineness is less than 25um, adds
Styrene, the paraffin and mill base of cobalt iso-octoate solution, thawing that mass percent concentration is 12%, stirs evenly needed for obtaining
The gel coat wanted.
Embodiment 2
M-phthalate unsaturated polyester resin 100；
Defoaming agent BYK A555 0.1；
Fumed silica 1.0；
Styrene 20；
The cobalt iso-octoate solution 0.1 that mass percent concentration is 12%；
Paraffin 0.2；
Titanium white mill base 10；
Preparation method such as embodiment 1.
Embodiment 3
Neopentyl glycol type unsaturated polyester resin 100；
Defoaming agent BYK A555 0.5；
Fumed silica 2.5；
Styrene 40；
The cobalt iso-octoate solution 0.25 that mass percent concentration is 12%；
Paraffin 1.0；
Titanium white mill base 10；
Preparation method such as embodiment 1.
Embodiment 4
Vinylite 100；
Defoaming agent EFKA2720 0.5；
Fumed silica 2.0；
Styrene 20；
The cobalt iso-octoate solution 0.25 that mass percent concentration is 12%；
Paraffin 1.2；
Carbon black color slurry 5；
Preparation method such as embodiment 1.
Reference examples
Common unsaturated polyester (UP) gel coat, is prepared using the raw material of following parts by weight:
Metaphenylene unsaturated polyester resin 100
Defoaming agent BYK A555 0.5
Fumed silica 2.0
Styrene 30
The cobalt iso-octoate solution 0.2 that mass percent concentration is 12%
Titanium white mill base 10
Preparation method such as embodiment 1.
2.0g curing agent methyl ethyl ketone peroxide solution is added in gel coat 100g prepared by embodiment 1 ~ 4, uses after mixing evenly
Coating film pulling device prepares 600um gel coats on the glass plate for completely having coated release agent, solid in 30-40 DEG C of environment temperature
Change 2 hours to surface drying.In addition it takes the E51 epoxy resin of 200g that 50g amine hardener is added, stirs evenly, in cured gel coat
3 layers of glass mat are continuously pasted on coating.Room temperature solidify 2 hours after, be put into 60 DEG C solidify 2 hours, 80 DEG C 4 hours
After solidify, naturally cooling to demoulding after room temperature with baking oven is the epoxy resin composite material plate system with unsaturated polyester (UP) gel coat
Product.
The common unsaturated polyester (UP) gel coat of reference examples also prepares epoxy resin composite material plate using preparation method as above.
The code test side of coating pull-off strength is measured with Portable adhesion-force tester using ASTM D4541-2009
Method tests the pull-off strength of surface layer gel coat.General coating needs are greater than 5MPa.
It is polished, is visually inspected white point (pin hole) with 800 mesh sand paper in gel coat face.
Table one:
| Gel coat | Pull-off strength MPa | Pin hole |
| Embodiment 1 | 5.10 | Nothing |
| Embodiment 2 | 5.35 | Nothing |
| Embodiment 3 | 5.61 | Nothing |
| Embodiment 4 | 6.39 | Nothing |
| Reference examples | 0 | Nothing |
Conclusion: the common unsaturated polyester (UP) gel coat comparison of the test result and reference examples of gel coat formulation examples 1-4 through the invention is shown in
Table one, gel coat of the invention can effectively improve the adhesive strength of common unsaturated polyester (UP) gel coat and epoxy resin composite material,
Reaching can solve with the level of practical application and common weather-proof water-fast unsaturated polyester (UP) gel coat is applied to epoxy resin answer
The bonding problem of condensation material surface covering.
Claims (9)
1. a kind of gel coat for epoxy resin composite material surface, it is characterised in that by the raw material preparation of following parts by weight
At:
100 parts by weight of unsaturated polyester resin；
0.1-0.5 parts by weight of defoaming agent；
1.0-3.0 parts by weight of fumed silica；
40 parts by weight of styrene 20-；
Cobalt iso-octoate solution, in the cobalt iso-octoate solution, the weight of cobalt iso-octoate is 0.012-0.03 parts by weight；
0.05-2.0 parts by weight of paraffin；
5-30 parts by weight of mill base.
2. a kind of gel coat for epoxy resin composite material surface according to claim 1, it is characterised in that: described
Unsaturated polyester resin is m-phthalate unsaturated polyester resin, metaphenylene unsaturated polyester resin, terephthalic unsaturated polyester tree
Any one in rouge, neopentyl glycol type unsaturated polyester resin or vinylite.
3. a kind of gel coat for epoxy resin composite material surface according to claim 1, it is characterised in that: described
Fumed silica is the fumed silica that specific surface area is 100-400m2/g.
4. a kind of gel coat for epoxy resin composite material surface according to claim 1, it is characterised in that: described
Defoaming agent is trade mark BYK A501 or the BYK A555 of Bick chemical company production, the trade mark of BASF AG's production
Any one in the EFKA PB 2720 or trade mark AFCONA 7200 of angstrom husband Kona auxiliary agent Co., Ltd production.
5. a kind of gel coat for epoxy resin composite material surface according to claim 1, it is characterised in that: described
The mass percent concentration of cobalt iso-octoate solution is 12%.
6. a kind of gel coat for epoxy resin composite material surface according to claim 1, it is characterised in that: described
Paraffin is solid paraffin of the melting range at 40-80 DEG C.
7. a kind of gel coat for epoxy resin composite material surface according to claim 1, it is characterised in that: described
Mill base is containing unsaturated polyester (UP)s such as titanium dioxide, carbon black, phthalein blueness pigment, iron oxide red, iron oxide yellow, chrome oxide green, quinacridones
Any one in resin mill base or two or more mixtures.
8. a kind of preparation method of gel coat for epoxy resin composite material surface described in claim 1, it is characterised in that
Include the following steps:
1) each reaction raw materials are weighed according to parts by weight；
2) defoaming agent, fumed silica are added into unsaturated polyester resin, high speed dispersion to fineness is less than 40um, adds
Styrene, cobalt iso-octoate solution, thawing paraffin and mill base, stir evenly i.e. obtain required for gel coat.
9. a kind of gel coat for epoxy resin composite material surface described in claim 1 is as epoxy resin composite material table
The purposes of finishing coat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811183188.2A CN109321102A (en) | 2018-10-11 | 2018-10-11 | A kind of gel coat and its preparation method and application for epoxy resin composite material surface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811183188.2A CN109321102A (en) | 2018-10-11 | 2018-10-11 | A kind of gel coat and its preparation method and application for epoxy resin composite material surface |
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| Publication Number | Publication Date |
|---|---|
| CN109321102A true CN109321102A (en) | 2019-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811183188.2A Pending CN109321102A (en) | 2018-10-11 | 2018-10-11 | A kind of gel coat and its preparation method and application for epoxy resin composite material surface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111138958A (en) * | 2020-01-10 | 2020-05-12 | 中国科学院海洋研究所 | Gel coat coating material with antifouling property and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160154A (en) * | 2011-12-13 | 2013-06-19 | 优利康达（天津）科技有限公司 | Gelcoat putty for repairing wind power cabin cover and preparation method thereof |
| CN103937388A (en) * | 2014-04-22 | 2014-07-23 | 浙江倍斯特制冷科技有限公司 | Weather-resistant nano-composite gel coat and preparation method thereof |
| CN105440622A (en) * | 2015-12-20 | 2016-03-30 | 福建梭罗复合材料研究有限公司 | Gel coat with high thixotropic property and low viscosity and preparation method thereof |
| US20160278216A1 (en) * | 2012-08-27 | 2016-09-22 | Camtek Ltd. | Curable ink and a method for printing and curing the curable ink |
-
2018
- 2018-10-11 CN CN201811183188.2A patent/CN109321102A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160154A (en) * | 2011-12-13 | 2013-06-19 | 优利康达（天津）科技有限公司 | Gelcoat putty for repairing wind power cabin cover and preparation method thereof |
| US20160278216A1 (en) * | 2012-08-27 | 2016-09-22 | Camtek Ltd. | Curable ink and a method for printing and curing the curable ink |
| CN103937388A (en) * | 2014-04-22 | 2014-07-23 | 浙江倍斯特制冷科技有限公司 | Weather-resistant nano-composite gel coat and preparation method thereof |
| CN105440622A (en) * | 2015-12-20 | 2016-03-30 | 福建梭罗复合材料研究有限公司 | Gel coat with high thixotropic property and low viscosity and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111138958A (en) * | 2020-01-10 | 2020-05-12 | 中国科学院海洋研究所 | Gel coat coating material with antifouling property and preparation method thereof |
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Application publication date: 20190212 |