CN104226567B - A kind of clear transparent composite coating painting method of UV resistant - Google Patents
A kind of clear transparent composite coating painting method of UV resistant Download PDFInfo
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- CN104226567B CN104226567B CN201410505443.6A CN201410505443A CN104226567B CN 104226567 B CN104226567 B CN 104226567B CN 201410505443 A CN201410505443 A CN 201410505443A CN 104226567 B CN104226567 B CN 104226567B
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Abstract
The invention provides the clear transparent composite coating painting method of a kind of UV resistant, the primary coat varnish selected in the present invention is acrylic lacquer, and coating varnish is the one in trifluoro fluorocarbon varnish or tetrafluoro fluorocarbon varnish.This composite coating is for metal, carbon fibre composite or glass fiber compound material, formation can represent the coating of the clear transparent of metal body color and luster, composite material fabric lines, and this composite coating hardness of paint film is high, outward appearance is beautiful, have wet-heat resisting, resistance to mycete and the excellent weather resistance of UV resistant.
Description
Technical field
The present invention relates to a kind of composite coating painting method, especially a kind of for metal, carbon fibre composite
Or the clear transparent composite coating painting method with UV resistant function on glass fiber compound material.
Background technology
Clear coat can represent substrate surface lines and body color and luster, along with the requirement of product appearance is got over by people
Coming the highest, a lot of product needed spraying clear coat improves product appearance, metal, carbon fibers/fiberglass
Composite is no exception.Resin used by carbon fibre composite and glass fiber compound material typically uses ring
Oxygen resinoid, according to the literature, the resin system UV resistant performance containing epoxy construction is poor, chain therein
Section is easily decomposed under ultraviolet light irradiates.This kind of composite product outward appearance, to use clear coat, especially needs
Consider the UV resistant performance of this coating.Different types of varnish is sprayed by the present invention, forms a kind of light
Clear composite coating, its adhesive force, wet-heat resisting, resistance to mycete and UV resistant performance are the most outstanding.
Summary of the invention
It is an object of the invention to provide the clear transparent composite coating painting method of a kind of UV resistant, this coating and
Method can be used on metal, carbon fibre composite or glass fiber compound material, and formation can represent metal originally
Body colour pool, the clear transparent coating of composite material fabric lines, and this composite coating hardness of paint film are high, outward appearance drift
Bright, there is wet-heat resisting, resistance to mycete and the excellent weather resistance of UV resistant.
For realizing object above, the clear transparent composite coating painting method of a kind of UV resistant of the present invention
Comprise the steps:
(1) base material carries out preliminary surface process；
(2) on base material, coat primary coat varnish, thus be formed on base coat, under the conditions of 80 DEG C, dry 1h
Or room temperature placement can make base coat be dried for 1 day；
(3) after base coat is completely dried, use sand papering base coat, be then coated with in base coat
Cover coating varnish, thus be formed on protective coating, dry 1h under the conditions of 80 DEG C or room temperature is placed and can be made for 1 day
Protective coating is completely dried；
Wherein, described primary coat varnish is acrylic lacquer；Coating varnish is fluorocarbon varnish.
Wherein, described fluorocarbon varnish is the one in trifluoro fluorocarbon varnish or tetrafluoro fluorocarbon varnish.
Wherein, described step (1) carries out surface process to base material particularly as follows: to metal surface deoxidation
Film, oil removing；Composite material surface is first processed with 360# sand papering and processes with the sand papering of 600# again.
Wherein, described step (2) if in base material be composite, surface may produce pin hole, starved etc.
Defect, needs to repeat step (1) and step (2).
Wherein, by sand papering base coat particularly as follows: with 1000#～1500# sand in described step (3)
Base coat is dry grinded or water mill by paper.
Wherein, the thickness of described composite coating is between 50 μm and 80 μm.
Wherein, described coating varnish uses Air spraying, and spray distance is 15cm～30cm；To be coated with-4 glasss
Spray viscosity is measurement standard, and spray viscosity is 10S～20S；Film thickness is 30 μm～40 μm.
Wherein, described primary coat varnish uses Air spraying, and spray distance is 15cm～30cm；To be coated with-4 glasss
Spray viscosity is measurement standard, and spray viscosity is 15S～25S；Film thickness is 20 μm～40 μm.
The present invention compares background technology and has the advantage that
The composite coating hardness of paint film being composited by primary coat varnish and coating varnish of the present invention is high, outward appearance
Beautiful, there is wet-heat resisting, resistance to mycete and the excellent weather resistance of UV resistant.
Detailed description of the invention
Below in conjunction with example, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
The clear transparent composite coating painting method of a kind of UV resistant, it is characterised in that comprise the following steps:
(1) base material carries out preliminary surface process, metal surface deoxidation film, oil removing；Composite material surface
First process with the sand papering of 600# again with 360# sand papering；
(2) on base material, coat primary coat varnish, thus be formed on base coat, under the conditions of 80 DEG C, dry 1h
Or room temperature placement can make base coat be dried for 1 day；If base material is composite, surface may produce pin hole, lack
The defects such as glue, need to repeat step (1) and (2).
(3) after base coat is completely dried, by 1000#～1500# sand papering base coat, can dry grind
Or water mill, in base coat, then coat coating varnish, thus be formed on protective coating, 80 DEG C of conditions
Lower baking 1h or room temperature are placed and protective coating within 1 day, can be made to be completely dried；
Wherein, the acrylic lacquer that described primary coat varnish is levelability, filling perforation is good.This varnish is free from ring
The pure acrylic resin of oxygen key is polymerized, and resin ultra-violet resistance can preferably, and respective coatings system is suitable for open air to be made
With.
Wherein, described coating varnish is the fluorocarbon varnish containing fluorine carbon bond, and this fluorocarbon varnish is that trifluoro fluorine carbon is clear
One in paint or tetrafluoro fluorocarbon varnish.The organic fluorine film forming matter of the fluorocarbon varnish containing fluorine carbon structure is with poly-
Alkene is the same, is all the polymer with C C key as main chain, and different simply be instead of polyolefin by fluorine atom
On hydrogen atom.Due to fluorine atom electronegativity greatly (4.0), the F C key formed between fluorine atom and carbon atom
Bond energy (486 kJ/mol) is very big, than C H key (410 KJ/mol), C O key (360 KJ/mol), C C
The bond energy of key (356 KJ/mol) etc. is much higher, is difficult to be dissociated by ultraviolet.Tetrafluoro fluorocarbon resin is due to ratio three
Fluorine fluorocarbon resin has more F C key, and therefore ultra-violet resistance can be more preferably.
Wherein, the thickness of described composite coating is between 50 μm and 80 μm.
Wherein, described coating varnish uses Air spraying, and spray distance is 15cm～30cm；To be coated with-4 glasss
Spray viscosity is measurement standard, and spray viscosity is 10S～20S；Film thickness is 30 μm～40 μm.
Wherein, described primary coat varnish uses Air spraying, and spray distance is 15cm～30cm；To be coated with-4 glasss
Spray viscosity is measurement standard, and spray viscosity is 15S～25S；Film thickness is 20 μm～40 μm.
During primary coat varnish application, spray viscosity uses 15S～25S, and viscosity is relatively large, primarily to
Fill up base material micropore, obtain a smooth bottom for coating varnish and lay the foundation.In coating varnish coating procedure
Spray viscosity uses 10S～20S, and viscosity is relatively small, is primarily due to paint liquid good leveling property, is more easy to obtain
The paint film that glossiness is high.
The film thickness of primary coat varnish is 20 μm～40 μm, and filling perforation performance is good, it is ensured that paint film is smooth；Lacquer finish is clear
Paint film thickness is 30 μm～40 μm, it is ensured that the UV resistant performance of coating.
The composite coating hardness of paint film being composited by primary coat varnish and coating varnish of the present invention is high, outward appearance
Beautiful, there is wet-heat resisting, resistance to mycete and the excellent weather resistance of UV resistant.
When varnish on market is used alone or when compound use is incorrect, it does not have UV resistant characteristic, no
Outdoor environment can be used for.Specific performance is shown in Table 1.
Comparative example 1:
Individually select a kind of acroleic acid polyurethane varnish.
Comparative example 2:
Individually select a kind of trifluoro fluorocarbon varnish.
Comparative example 3:
Varnish A selects a kind of epoxy polyamide varnish, and varnish B selects a kind of acroleic acid polyurethane varnish.
Varnish the resistance to environmental suitability situation (comparative example) when being used alone in table 1 market
From comparative example 1 and 2 it can be seen that when individually selecting a kind of clear varnish to be coated, formation
Coating, adhesive force is qualified, and resistance to mycete and wet-hot aging performance are the most no problem, but general not UV resistant irradiates,
It is not solely used under outdoor environment using.If from comparative example 3 it can be seen that two kinds of coat type are selected not
When, its composite coating does not the most have ultra-violet resistance can be directly used in outdoor environment.
The clear transparent composite coating that the present invention is compounded to form by two kinds of dissimilar varnish, its adhesive force, resistance to
Mycete damp and hot, resistance to and UV resistant performance are the most outstanding.Specific performance is shown in Table 2.
Embodiment 1
Varnish A selects a kind of acrylic lacquer, and varnish B selects a kind of trifluoro fluorocarbon varnish.
Embodiment 2
Varnish A selects a kind of acrylic lacquer, and varnish B selects a kind of tetrafluoro fluorocarbon varnish.
The environmental suitability of the composite coating paint film of table 2 embodiment gained
Claims (8)
1. the clear transparent composite coating painting method of a UV resistant, it is characterised in that this painting method
Comprise the following steps:
(1) base material carries out preliminary surface to process；
(2) on base material, coat primary coat varnish, thus be formed on base coat, under the conditions of 80 DEG C, dry 1h
Or room temperature places 1 angel's base coat and is dried；
(3) after base coat is completely dried, use sand papering base coat, be then coated with in base coat
Cover coating varnish, thus be formed on protective coating, dry 1h under the conditions of 80 DEG C or room temperature is placed 1 angel and protected
Protect coating to be completely dried；
Wherein, described primary coat varnish is acrylic lacquer；Coating varnish is fluorocarbon varnish.
The clear transparent composite coating painting method of a kind of UV resistant the most according to claim 1, its
It is characterised by: described fluorocarbon varnish is the one in trifluoro fluorocarbon varnish or tetrafluoro fluorocarbon varnish.
The clear transparent composite coating painting method of a kind of UV resistant the most according to claim 1, its
It is characterised by: described step (1) carries out surface process to base material particularly as follows: to metal surface deoxidation
Film, oil removing；Composite material surface is first processed with 360# sand papering and processes with the sand papering of 600# again.
The clear transparent composite coating painting method of a kind of UV resistant the most according to claim 1, its
Be characterised by: described step (2) if in base material be composite, surface may produce pin hole, starved
Defect, needs to repeat step (1) and step (2).
The clear transparent composite coating painting method of a kind of UV resistant the most according to claim 1, its
It is characterised by: by sand papering base coat particularly as follows: with 1000#～1500# sand in described step (3)
Base coat is dry grinded or water mill by paper.
The clear transparent composite coating painting method of a kind of UV resistant the most according to claim 1, its
It is characterised by: the thickness of this composite coating is between 50 μm and 80 μm.
The clear transparent composite coating painting method of a kind of UV resistant the most according to claim 1, its
It is characterised by: described primary coat varnish uses Air spraying, and spray distance is 15cm～30cm；To be coated with-4 glasss
Spray viscosity is measurement standard, and spray viscosity is 15S～25S；Film thickness is 20 μm～40 μm.
The clear transparent composite coating painting method of a kind of UV resistant the most according to claim 1, its
It is characterised by: described coating varnish uses Air spraying, and spray distance is 15cm～30cm；To be coated with-4 glasss
Spray viscosity is measurement standard, and spray viscosity is 10S～20S；Film thickness is 30 μm～40 μm.
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| CN201410505443.6A CN104226567B (en) | 2014-09-26 | 2014-09-26 | A kind of clear transparent composite coating painting method of UV resistant |
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| CN201410505443.6A CN104226567B (en) | 2014-09-26 | 2014-09-26 | A kind of clear transparent composite coating painting method of UV resistant |
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| CN104588285A (en) * | 2015-01-16 | 2015-05-06 | 上海迪诺克新材料科技有限公司 | Process for coating and baking carbon-fiber composite product |
| CN107931067A (en) * | 2017-12-19 | 2018-04-20 | 江苏亨睿碳纤维科技有限公司 | A kind of woven pattern exposed lacquer spraying technique of automobile using carbon fiber product |
| CN108031639B (en) * | 2017-12-29 | 2021-04-06 | 四川九洲电器集团有限责任公司 | Method for repairing pinhole before coating glass fiber reinforced plastic |
| CN108993842A (en) * | 2018-09-27 | 2018-12-14 | 中航复合材料有限责任公司 | A kind of clear-coated method of automobile carbon fiber/epoxy resin composite material exterior trimming parts |
| CN111940254A (en) * | 2020-08-12 | 2020-11-17 | 山东英特力新材料有限公司 | Bubble repairing method for carbon fiber product |
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| JP2000280402A (en) * | 1999-03-30 | 2000-10-10 | Nisshin Steel Co Ltd | Fluoroplastic film laminated metal plate and production thereof |
| CN103008216B (en) * | 2012-11-26 | 2015-10-07 | 中国计量科学研究院 | The interior wall processing technology of aluminium alloy pressure cylinder and treating apparatus |
| CN103846209A (en) * | 2012-11-28 | 2014-06-11 | 辉旭微粉技术（上海）有限公司 | Preparing method of high-flatness and high-gloss PVDF (polyvinylidene fluoride) coating |
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