CN104655073A - Method for quickly determining functional coating thickness parameters - Google Patents
Method for quickly determining functional coating thickness parameters Download PDFInfo
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- CN104655073A CN104655073A CN201510017354.1A CN201510017354A CN104655073A CN 104655073 A CN104655073 A CN 104655073A CN 201510017354 A CN201510017354 A CN 201510017354A CN 104655073 A CN104655073 A CN 104655073A
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- layer
- matching layer
- polytetrafluoroethylene
- thickness
- wave absorbing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
Abstract
The invention discloses a method for quickly determining functional coating thickness parameters. The method comprises the following steps: preparing a wave absorbing layer with a wave absorbing material, wherein the wave absorbing material is uniformly sprayed onto a polytetrafluoroethylene flat plate, the thickness of the wave absorbing layer is controlled within a range from 0.08 mm to 0.2 mm, and then solidification is carried out; tearing off the solidified wave absorbing layer from the polytetrafluoroethylene flat plate, and cutting the wave absorbing layer into a plurality of wave absorbing layer blocks having the same sizes and shapes as metal plates; preparing a matching layer on the polytetrafluoroethylene flat plate with epoxy resin taken as a substrate, and calcium carbonate, a glass fiber, silicon dioxide or a hollow glass microsphere taken as a filling material, wherein the thickness of the matching layer is controlled within a range from 0.08 mm to 0.2 mm, and then solidification is carried out; tearing off the solidified matching layer from the polytetrafluoroethylene flat plate, and cutting the matching layer into a plurality of matching layer blocks having the same sizes and shapes as the metal plates; combining the wave absorbing layer blocks with the matching layer blocks, and pasting the combined blocks on all the metal plates to manufacture a plurality of functional material coating templates with different parameter combinations.
Description
Technical field
The invention belongs to functional coating material technical field, particularly to the method that coating formula and thickness parameter are determined fast.
Background technology
Along with the development of science and technology, some functional paints with special electromagnetic parameter obtain increasing application, and as shielding coating, the low scattering coating of microwave etc., they have played huge effect in change electromagnetic characteristics.For this type coating, the relation of its performance and thickness is very close, and in order to reach certain effect, usually needs the combination of multilayer different formulations and thickness parameter.The test method of functional coating generally comprises the links such as formula Design, coating preparation, test piece spraying and solidification, performance test, and in order to reach required target, functional coating often needs the combination of multilayer and mates.
The reflectivity of functional coating and the formula of coating and structural parameters have extremely close relation, and the change of formula components, the number of plies and thickness can produce a very large impact its performance.For the design of coating, generally take bilayer or sandwich construction, for double-decker, bottom is absorption layer, and the loss of material is higher, and surface layer is matching layer, makes incident electromagnetic wave reduce reflection at air/low scattering coating interface, enters absorption layer and absorb.Multi-layer design is then add one or more middle layer between surface layer and bottom, and its electromagnetic parameter is between bottom and surface layer, and the arrangement in gradual manner.For low scattering coating, usually determine that the test method of its thickness prepares coating by the recipe requirements of design, be sprayed on the metal plate of certain size.In order to reach certain low scattering property, low scattering coating is general thicker, needs repeatedly to spray.Testing coating thickness after solidification, then prepares other functional coatings such as middle layer, matching layer by corresponding technique.So just need multiple batching-produce coating-spraying-solidification process, during test, adopt corresponding method of testing to assess reflectivity.If fail to reach designing requirement, then repeat formula Design, coating makes, the step such as the spraying of each coating and solidification.In order to reach the requirement of setting, need the adjustment and the composite test that repeatedly carry out formula and thickness, because coating fabrication cycle is longer, the combination of different formulations, the number of plies, thickness is many again, in order to obtain the coating thickness parameter of particular requirement, just need the test carried out in a large number, repeatedly and longer cycle to complete.
Summary of the invention
The present invention, in order to solve problems of the prior art, provides a kind of method determining functional coating thickness parameter fast.
In order to realize above-mentioned object, technical scheme of the present invention is: a kind of method determining functional coating thickness parameter fast, comprises the following steps:
Step 1: prepare one piece of ganoid polytetrafluoroethylene, and sheet metal polylith;
Step 2: clear and definite functional coating needs the targets design parameters reached;
Step 3: adopt antiradar coatings to prepare and inhale ripple layer, antiradar coatings even application on polytetrafluoroethylene, controlling to inhale ripple layer thickness is 0.08mm ~ 0.2mm, is cured afterwards;
Step 4: the suction ripple layer after solidification is taken off from polytetrafluoroethylene, is cut into polylith and sheet metal size, bulk that shape is identical;
Step 5: take epoxy resin as matrix, prepare matching layer as filler using calcium carbonate, glass fibre, silicon dioxide or hollow glass micropearl on polytetrafluoroethylene; The thickness controlling matching layer is 0.08mm ~ 0.2mm, is cured afterwards;
Step 6: the matching layer after solidification is taken off from polytetrafluoroethylene, is cut into polylith and sheet metal size, bulk that shape is identical;
Step 7: suction ripple layer, matching layer are combined, sticks on each sheet metal in the mode bondd, produce the functional material coating model of multiple different parameters combination;
Step 8: carry out Performance Detection to coating model, selects and meets the requirements or close to satisfactory model, record the thickness inhaling ripple layer and matching layer;
Step 9: determine the thickness parameter inhaling ripple layer and matching layer according to result.
Preferably, the area of described polytetrafluoroethylene is not less than 0.05m
2, described sheet metal is square, length of side 30mm ~ 200mm.
Preferably, described functional coating needs the frequency range of the targets design parameters reached to be 2GHz ~ 110GHz.
Preferably, described antiradar coatings is carbonyl iron dust, stainless steel fibre, graphite microparticles or ferrite.
Preferably, in described step 3, also comprise the step of antiradar coatings being carried out to adjusting viscosity.
Preferably, in described step 3, utilize dimethylbenzene to regulate the viscosity of antiradar coatings.
Preferably, in described step 4, step 6, suction ripple layer, matching layer are cut into 3-12 block.
The method determining functional coating thickness parameter fast that the present invention relates to, change the test method sprayed layer by layer on metallic substrates, disposablely can produce the test specimen than relatively large different qualities, in the shorter time, be combined into the test piece of multiple formulations and thickness.Adopt the microwave function coating parameter test method that the present invention relates to, can the test period be shortened, increase work efficiency.Especially the frequency range being suitable for functional material is 2GHz ~ 110GHz.
Accompanying drawing explanation
Fig. 1 shows the test pattern in the embodiment of the present invention 1.
Embodiment
The technical matters solved to make the present invention, the technical scheme of employing, the technique effect easy to understand obtained, below in conjunction with concrete accompanying drawing, be described further the specific embodiment of the present invention.
The invention provides a kind of method determining functional coating thickness parameter fast, comprise the following steps:
Step 1: first prepare one piece of ganoid polytetrafluoroethylene, and sheet metal polylith; The area of polytetrafluoroethylene is preferably not less than 0.05m
2, its smooth surface is smooth, without raised or sunken; Sheet metal is preferably in square, and its length of side is between 30mm ~ 200mm, and parallelism tolerance is not more than 0.1mm.
Step 2: clear and definite functional coating needs the targets design parameters reached; Such as design object is within the scope of 10GHz ~ 18GHz, need the absorption peak being not less than 10dB.
Step 3: adopt antiradar coatings to prepare and inhale ripple layer, preferably adopt the antiradar coatings within the scope of 10GHz ~ 18GHz with higher electromagnetic consumable; Such as adopt carbonyl iron dust, stainless steel fibre, graphite microparticles or ferrite etc., these materials all belong to existing technology.In order to adjust viscosity, available dimethylbenzene is as thinning agent.
According to the technological requirement of inhaling ripple layer, pre-service is carried out to antiradar coatings, comprises drying, surface treatment, coupling processing etc., then prepare burden, grind after stirring, add hardening agent, and adjust viscosity with thinning agent.The process of inhaling ripple layer belongs to existing technology, no longer illustrates at this.
Antiradar coatings even application on polytetrafluoroethylene, controlling to inhale ripple layer thickness is 0.08mm ~ 0.2mm, is cured afterwards;
Step 4: the suction ripple layer after solidification is taken off from polytetrafluoroethylene, is cut into polylith and sheet metal size, bulk that shape is identical; Preferably suction ripple layer can be cut into 3-12 block.
Step 5: take epoxy resin as matrix, prepare matching layer as filler using calcium carbonate, glass fibre, silicon dioxide or hollow glass micropearl on polytetrafluoroethylene; The thickness controlling matching layer is 0.08mm ~ 0.2mm, is cured afterwards; The process that wherein matching layer is concrete also belongs to existing technology.
Step 6: the matching layer after solidification is taken off from polytetrafluoroethylene, is cut into polylith and sheet metal size, bulk that shape is identical; Preferably matching layer can be cut into 3-12 block.
Step 7: combine suction ripple layer, matching layer, stick on each sheet metal in the mode bondd, adhesive can select epoxy adhesive, acrylic acid adhesive, the agent of alpha-cyanoacrylate gluing etc.Produce the functional material coating model of multiple different parameters combination;
Step 8: carry out Performance Detection to coating model, selects and meets the requirements or close to satisfactory model, record the thickness inhaling ripple layer and matching layer;
Step 9: determine the thickness parameter inhaling ripple layer and matching layer according to result.
The method determining functional coating thickness parameter fast that the present invention relates to, change the test method sprayed layer by layer on metallic substrates, disposablely can produce the test specimen than relatively large different qualities, in the shorter time, be combined into the test piece of multiple formulations and thickness.Adopt the microwave function coating parameter test method that the present invention relates to, can the test period be shortened, increase work efficiency.Especially the frequency range being suitable for functional material is 2GHz ~ 110GHz.
Embodiment 1
In order to obtain in the coating of 90GHz ~ 95GHz scope internal reflection rate lower than-10dB, test suction ripple layer and matching layer, according to test, coating, by double layer design, determines whether formula can be used.Need to investigate the absorbing property that test piece under different-thickness combined situation shows.Make with stainless steel fibre and inhale ripple layer, make matching layer using silicon dioxide as suction ripple filler, make coating respectively, coating even application on polytetrafluoroethylene by these two kinds formulas, make the paint film that thickness is about 0.1mm, be placed in baking oven and be cured.Solidified and rear paint film have been taken off from polytetrafluoroethylene, cutting into the shape identical with reflectance test metal substrate, is the square of 45mm × 45mm, coated film bonding on metallic substrates, and obtained 48 pieces of models.The combined situation of coating is in table 1.
Through performance test, find that there is a combination (top layer 0.3mm, bottom 0.5mm) and can meet pre-provisioning request, its reflectivity-frequency characteristic is shown in accompanying drawing 1.Like this, through the cycle of a coating preparation-coating preparation-composite test-test, can substantially determine required formula and thickness parameter, about 3 working days of required time.
Comparative example 1
In order to obtain, in the coating (by double layer design) of 90GHz ~ 95GHz range reflections rate lower than-10dB, first devising bottom formula and overlayer formulation.
Test according to a conventional method, first make the coating of bottom formula, direct spraying is on polylith metal substrate, and coating thickness changes in gradient, is cured by technique, measures coating thickness after solidification.In general, need just can reach predetermined thickness indication after grinding.When making top coat, also need to repeat identical technological process.Through subbing preparation-spraying-solidification-grinding-top layer coating preparation-spraying-solidification-grinding-test procedure, need about 7 working days.
The present invention is by preferred embodiment having carried out detailed explanation.But, by studying carefully above, concerning the change of each embodiment with to increase be apparent for one of ordinary skill in the art.Being intended that these changes all and increasing of applicant has all dropped in scope that the claims in the present invention protect.
Claims (7)
1. determine a method for functional coating thickness parameter fast, it is characterized in that, comprise the following steps:
Step 1: prepare one piece of ganoid polytetrafluoroethylene, and sheet metal polylith;
Step 2: clear and definite functional coating needs the targets design parameters reached;
Step 3: adopt antiradar coatings to prepare and inhale ripple layer, antiradar coatings even application on polytetrafluoroethylene, controlling to inhale ripple layer thickness is 0.08mm ~ 0.2mm, is cured afterwards;
Step 4: the suction ripple layer after solidification is taken off from polytetrafluoroethylene, is cut into polylith and sheet metal size, bulk that shape is identical;
Step 5: take epoxy resin as matrix, prepare matching layer as filler using calcium carbonate, glass fibre, silicon dioxide or hollow glass micropearl on polytetrafluoroethylene; The thickness controlling matching layer is 0.08mm ~ 0.2mm, is cured afterwards;
Step 6: the matching layer after solidification is taken off from polytetrafluoroethylene, is cut into polylith and sheet metal size, bulk that shape is identical;
Step 7: suction ripple layer, matching layer are combined, sticks on each sheet metal in the mode bondd, produce the functional material coating model of multiple different parameters combination;
Step 8: carry out Performance Detection to coating model, selects and meets the requirements or close to satisfactory model, record the thickness inhaling ripple layer and matching layer;
Step 9: determine the thickness parameter inhaling ripple layer and matching layer according to result.
2. method according to claim 1, is characterized in that: the area of described polytetrafluoroethylene is not less than 0.05m
2, described sheet metal is square, length of side 30mm ~ 200mm.
3. method according to claim 1, is characterized in that: the frequency range of the targets design parameters that described functional coating needs reach is 2GHz ~ 110GHz.
4. method according to claim 1, is characterized in that: described antiradar coatings is carbonyl iron dust, stainless steel fibre, graphite microparticles or ferrite.
5. method according to claim 1, is characterized in that: in described step 3, also comprises the step of antiradar coatings being carried out to adjusting viscosity.
6. method according to claim 5, is characterized in that: in described step 3, utilizes dimethylbenzene to regulate the viscosity of antiradar coatings.
7. method according to claim 5, is characterized in that: in described step 4, step 6, suction ripple layer, matching layer are cut into 3-12 block.
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Citations (6)
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|---|---|---|---|---|
| JP4010188B2 (en) * | 2002-05-31 | 2007-11-21 | 東レ株式会社 | Method for measuring thickness of coating film and measuring apparatus and method for manufacturing coating film forming member |
| CN101082483A (en) * | 2006-06-01 | 2007-12-05 | 鞍钢股份有限公司 | Method for on-line testing the thick of color coated band steel coating film |
| CN101520450A (en) * | 2008-02-26 | 2009-09-02 | 宝山钢铁股份有限公司 | Manufacture method of zinc-iron alloy standard template |
| JP4330759B2 (en) * | 2000-04-10 | 2009-09-16 | 株式会社東芝 | Predictive management system for film thickness and film quality on the workpiece surface |
| CN102927950A (en) * | 2012-10-31 | 2013-02-13 | 中钢集团邢台机械轧辊有限公司 | Automatic thickness measuring device for cold-type coating of roller |
| CN103217137A (en) * | 2013-03-29 | 2013-07-24 | 东莞市三文光电技术有限公司 | Adhesive layer thickness measurement method |
-
2015
- 2015-01-12 CN CN201510017354.1A patent/CN104655073B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4330759B2 (en) * | 2000-04-10 | 2009-09-16 | 株式会社東芝 | Predictive management system for film thickness and film quality on the workpiece surface |
| JP4010188B2 (en) * | 2002-05-31 | 2007-11-21 | 東レ株式会社 | Method for measuring thickness of coating film and measuring apparatus and method for manufacturing coating film forming member |
| CN101082483A (en) * | 2006-06-01 | 2007-12-05 | 鞍钢股份有限公司 | Method for on-line testing the thick of color coated band steel coating film |
| CN101520450A (en) * | 2008-02-26 | 2009-09-02 | 宝山钢铁股份有限公司 | Manufacture method of zinc-iron alloy standard template |
| CN102927950A (en) * | 2012-10-31 | 2013-02-13 | 中钢集团邢台机械轧辊有限公司 | Automatic thickness measuring device for cold-type coating of roller |
| CN103217137A (en) * | 2013-03-29 | 2013-07-24 | 东莞市三文光电技术有限公司 | Adhesive layer thickness measurement method |
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Effective date of registration: 20190529 Address after: 518172 Longgang Pioneer Park 230, Longgang Industrial Park, Huanggekeng Community, Longgang District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Devo Instruments Co., Ltd. Address before: 518100 Yiting Xuan, Building 4, Zhongzhao Garden, Nanling Village, Nanwan Street, Longgang District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Jinshi Petrochemical Instrument Co., Ltd. |
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