CN106248594A - Automotive coatings UV resistant penetration performance method of testing - Google Patents
Automotive coatings UV resistant penetration performance method of testing Download PDFInfo
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- CN106248594A CN106248594A CN201610565676.4A CN201610565676A CN106248594A CN 106248594 A CN106248594 A CN 106248594A CN 201610565676 A CN201610565676 A CN 201610565676A CN 106248594 A CN106248594 A CN 106248594A
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- automotive coatings
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- 238000000576 coating method Methods 0.000 title claims abstract description 49
- 230000035515 penetration Effects 0.000 title claims abstract description 42
- 238000010998 test method Methods 0.000 title claims abstract description 26
- 238000012360 testing method Methods 0.000 claims abstract description 86
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 239000004743 Polypropylene Substances 0.000 claims description 9
- 230000002950 deficient Effects 0.000 claims description 9
- -1 polypropylene Polymers 0.000 claims description 9
- 229920001155 polypropylene Polymers 0.000 claims description 9
- 238000000870 ultraviolet spectroscopy Methods 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 3
- 239000012224 working solution Substances 0.000 claims description 3
- 239000005028 tinplate Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 5
- 238000010422 painting Methods 0.000 description 5
- 239000003973 paint Substances 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910052724 xenon Inorganic materials 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
- G01N2021/3155—Measuring in two spectral ranges, e.g. UV and visible
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Paints Or Removers (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The automotive coatings UV resistant penetration performance method of testing that the present invention provides includes step one: prepare film, step 2: arrange the parameter of ultraviolet-uisible spectrophotometer, step 3: test the UV resistant penetration performance of described film.Compared with prior art, test speed is greatly improved the method, and fast and easy determines optimal coating thickness and best coatings formula, accelerates productive temp, saves substantial amounts of human resources and testing cost.
Description
Technical field
The present invention relates to the field tests of car paint performance, particularly relate to a kind of automotive coatings UV resistant penetration performance
Method of testing.
Background technology
Along with environmental protection is increasingly paid attention to by country, automobile industry also grows with each passing hour, and starts a large amount of use aqueous compact work
Skill and aqueous list are coated with Technology and automobile carry out application, and above two coating process compares environmental protection, and cost is relatively low, and painting takes on
The vehicle mass come is the highest, is the most increasingly favored by automobile industry.
During general employing aqueous compact technique, owing to this technological process not having middle painting step, the therefore coating of automobile
Will not be the thickest, but on the basis of ensureing thinner thickness, the UV resistant penetration performance of coating to be ensured is good, then just
Need the UV resistant penetration performance of automotive coatings is detected.It is resistance to that prior art usually uses xenon lamp to carry out automotive coatings
Ultraviolet penetration performance is tested, but uses xenon lamp to carry out the method tested, and the test period is oversize, tests needs the most every time
1000 hours, if testing out thickness or the formulation for coating material poor effect of each coating, test again after also needing to improve.
Consequently, it is possible to be unfavorable for quickly determining optimal coating layer thickness and the determination of best coatings formula, have a strong impact on entering of coating process
Journey, and then affect car load and dispatch from the factory efficiency, the most also expend a large amount of human resources and testing cost.Therefore it is badly in need of one can quickly enter
The method of row automotive coatings UV resistant penetration performance test.
Summary of the invention
It is an object of the invention to provide a kind of automotive coatings UV resistant penetration performance method of testing, to solve above-mentioned asking
Topic, improves and determines optimal coating layer thickness and the speed of best coatings formula, accelerates productive temp, saves manpower financial capacity.
The invention provides a kind of automotive coatings UV resistant penetration performance method of testing, including:
Step one: prepare film, is pasted onto polypropylene board on iron plate, sprays coating to be tested on polypropylene board,
Described iron plate is put in baking box so that described coating cools down after drying and i.e. forms film；
Step 2: arrange the parameter of ultraviolet-visible spectrophotometer, arranging test wavelength scope is 280-600nm, data
Acquisition interval is 5nm, and scanning speed is 185nm/min, and acquisition time is 0.6s, a length of 4nm of screen；
Step 3: test the UV resistant penetration performance of described film, the coating on polypropylene board is stripped down placement
In the test flume of ultraviolet-visible spectrophotometer, start test and record test data.
Automotive coatings UV resistant penetration performance method of testing as above, these, it is preferred to, described step one
In, prepare the film that thickness is seven kinds of thickness of A1, A2, A3, A4, A5, A6 and A7, and the film of seven kinds of thickness is carried out resistance to respectively
Ultraviolet penetration performance is tested.
Automotive coatings UV resistant penetration performance method of testing as above, these, it is preferred to, testing described painting
Before the UV resistant penetration performance of film, film thickness gauge is used to test the thickness of film to be measured.
Automotive coatings UV resistant penetration performance method of testing as above, these, it is preferred to, step 3 is specifically wrapped
Include: under constant-temperature constant-humidity environment, test the UV resistant penetration performance of described film, and before test, by described ultraviolet-can
See that spectrophotometer preheats the setting time.
Automotive coatings UV resistant penetration performance method of testing as above, these, it is preferred to, also include step
Four: test result judges, is compared with achievement data by the test data obtained, if test data is less than achievement data, be
Qualified, if test data is more than or equal to achievement data, it is defective, achievement data is as follows:
Wave-length coverage 290～400nm, ultraviolet penetrance ＜ 0.02%；
Wave-length coverage 401～430nm, ultraviolet penetrance ＜ 0.1%；
Wave-length coverage 431～470nm, ultraviolet penetrance ＜ 0.25%；
Wave-length coverage 471～500nm, ultraviolet penetrance ＜ 0.5%.
Automotive coatings UV resistant penetration performance method of testing as above, these, it is preferred to, by described index number
According to forming index curve, then test data is formed trial curve, described trial curve is compared with described index curve,
If described trial curve the most all on the right side of described index curve, then be qualified, if described trial curve has a point
In the left side of described index curve, the most defective.
Automotive coatings UV resistant penetration performance method of testing as above, these, it is preferred to, in described step one
Before, described method of testing also includes: test sample, as test sample, is carried out after loading container by taking-up part coatings again
Dilution, is adjusted to 20 ± 1 DEG C by the temperature of test sample, adjusts viscosity to working solution state.
Automotive coatings UV resistant penetration performance method of testing as above, these, it is preferred to, described iron plate is horse
Mouth iron plate.
The automotive coatings UV resistant penetration performance method of testing that the present invention provides includes step one: prepare film, step
Two: the parameter of ultraviolet-visible spectrophotometer is set, step 3: test the UV resistant penetration performance of described film.The method
Compared with prior art, test speed is greatly improved, and fast and easy determines optimal coating thickness and best coatings formula, accelerates
Productive temp, saves substantial amounts of human resources and testing cost.
Accompanying drawing explanation
The flow chart of the method for testing that Fig. 1 provides for the embodiment of the present invention；
Fig. 2 is the qualified schematic diagram of test result after using the method for testing of embodiment of the present invention offer to test；
Fig. 3 is the defective schematic diagram of test result after using the embodiment of the present invention to provide method of testing to test.
Description of reference numerals:
1-trial curve 2-index curve
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
The flow chart of the method for testing that Fig. 1 provides for the embodiment of the present invention, as it is shown in figure 1, what the embodiment of the present invention provided
The step of automotive coatings UV resistant penetration performance method of testing is as follows:
Step one (S1): prepare film, is pasted onto polypropylene board on iron plate, sprays painting to be tested on polypropylene board
Material, puts in baking box by described iron plate so that described coating cools down after drying and i.e. forms film.People in the art is appreciated that
, iron plate can use tinplate, and it is corrosion-resistant, nontoxic, intensity is high and ductility is good, can meet nonexpondable wanting
Asking, versatility is stronger.
Step 2 (S2): arrange the parameter of ultraviolet-visible spectrophotometer, arranging test wavelength scope is that 280-600 receives
Rice (nm), data acquisition intervals is 5 nanoseconds (nm), and scanning speed is 185 nanometers per minute (nm/min), and acquisition time is 0.6
Second (s), a length of 4 nanometers of screen (nm).
Step 3 (S3): test the UV resistant penetration performance of described film, the coating on polypropylene board is stripped down
It is placed in the test flume of ultraviolet-visible spectrophotometer, starts test and record test data.
Preferably, in described step one, for coating of the same race, typically need to prepare the film of multiple different-thickness,
When early-stage preparations, can prepare thickness is to prepare the film that thickness is seven kinds of thickness of A1, A2, A3, A4, A5, A6 and A7, and right
The film of seven kinds of thickness carries out UV resistant penetration performance test respectively, and in the present embodiment, A1, A2, A3, A4, A5, A6 and A7 are excellent
Elect 8 μm (micron), 10 μm, 12 μm, 14 μm, 16 μm, 18 μm, 20 μm as, be generally individually that the film from minimum thickness starts test,
Namely the film of 8 μ m thick in the present embodiment starts test, follow-up is 10 μm, 12 μm, 14 μm etc. successively, if proceeding to 14 μm
During the film of thickness, reached uvioresistant penetration performance requirement, the most remaining 16 μm, 18 μm, 20 μm equal thickness film not
Must test, if the film of above-mentioned wherein thickness is the most defective, then need again to prepare the painting of higher one-tenth-value thickness 1/10
Film, then re-start test, until certified products occur.It will be appreciated by persons skilled in the art that and other can also be selected thick
The film of degree is tested, such as: 8 μm, 11 μm, 14 μm, 17 μm etc., does not limit to concrete numerical value, more needs to set.
Further, the preparation of above-mentioned different-thickness film, can the most normally spray, or use robot automatic
Spraying, in the present embodiment, if testing on a small quantity, can selecting hand spray, if testing in a large number, then can select
Control During Paint Spraying by Robot, to accelerate test process.
Preferably, before testing the UV resistant penetration performance of described film, film thickness gauge is used to test film to be measured
Thickness, owing to the thickness of film directly affects car load aesthetic measure and the manufacturing cost etc. of automobile of automobile, therefore film
Thickness particularly important, it is necessary to before testing, reaffirm the concrete one-tenth-value thickness 1/10 of film to be measured.
Preferably, in order to reach optimum test result, test instrunment preferably works under constant-temperature constant-humidity environment, namely
Making ultraviolet-visible spectrophotometer is 21-25 degree Celsius (DEG C) in temperature, work in the environment of relative humidity 45%～55%
Make, namely the test testing the UV resistant penetration performance of described film is carried out under constant-temperature constant-humidity environment, and before test,
Described ultraviolet-visible spectrophotometer is preheated the setting time, and in the present embodiment, the setting time is preferably 30 minutes (min).
In the present embodiment, above-mentioned testing procedure can also include step 4: test result judges, the test data that will obtain
Compare with achievement data, if test data is less than achievement data, be qualified, if test data is more than or equal to achievement data
Being then defective, achievement data is as follows:
Wave-length coverage is in 290～400 nanometers (nm), ultraviolet penetrance ＜ 0.02%；
Wave-length coverage is in 401～430 nanometers (nm), ultraviolet penetrance ＜ 0.1%；
Wave-length coverage is in 431～470 nanometers (nm), ultraviolet penetrance ＜ 0.25%；
Wave-length coverage is in 471～500 nanometers (nm), ultraviolet penetrance ＜ 0.5%.
The qualified schematic diagram of test result that Fig. 2 provides for the embodiment of the present invention, the test that Fig. 3 provides for the embodiment of the present invention
The defective schematic diagram of result, as Figure 2-3, transverse axis is the expression of wavelength (unit: nanometer), and the longitudinal axis is ultraviolet penetrance
(unit %) represents, in the present embodiment, in order to improve test speed, it is possible to use computer realizes automatization judgement test result,
I.e. can form in described achievement data input computer index curve 1, then test data inputted computer, form test song
Line 2, compares described trial curve 2 with described index curve 1, if the institute of described trial curve 2 is the most all at described finger
The right side of mark curve 1, then for qualified (shown in Fig. 2), if described trial curve 2 has the some left side at described index curve 1
(shown in Fig. 3), then be defective.
Preferably, before carrying out the operation of described step one, according to the sampling standard of the paint product of GB3186 regulation,
Taking out test sample, test sample be diluted after loading in container again, the temperature of test sample is adjusted to 20 ± 1 DEG C,
Adjust viscosity to working solution state.
The structure of the present invention, feature and action effect, above institute are described in detail above according to graphic shown embodiment
State only presently preferred embodiments of the present invention, but the present invention is not to limit practical range, every structure according to the present invention shown in drawing
Want made change, or be revised as the Equivalent embodiments of equivalent variations, still without departing from description and diagram contained spiritual time,
All should be within the scope of the present invention.
Claims (8)
1. an automotive coatings UV resistant penetration performance method of testing, it is characterised in that including:
Step one: prepare film, is pasted onto polypropylene board on iron plate, sprays coating to be tested on polypropylene board, by institute
State iron plate and put in baking box so that described coating cools down after drying and i.e. forms film；
Step 2: arrange the parameter of ultraviolet-visible spectrophotometer, arranging test wavelength scope is 280-600nm, data acquisition
Being spaced apart 5nm, scanning speed is 185nm/min, and acquisition time is 0.6s, a length of 4nm of screen；
Step 3: test the UV resistant penetration performance of described film, strips down the coating on polypropylene board and is placed on purple
In the test flume of outward-visible spectrophotometer, start test and record test data.
2. automotive coatings UV resistant penetration performance method of testing as claimed in claim 1, it is characterised in that described step one
In, prepare the film that thickness is seven kinds of thickness of A1, A2, A3, A4, A5, A6 and A7, and the film of seven kinds of thickness is carried out resistance to respectively
Ultraviolet penetration performance is tested.
3. automotive coatings UV resistant penetration performance method of testing as claimed in claim 1, it is characterised in that described in test
Before the UV resistant penetration performance of film, film thickness gauge is used to test the thickness of film to be measured.
4. automotive coatings UV resistant penetration performance method of testing as claimed in claim 1, it is characterised in that step 3 is concrete
Including: under constant-temperature constant-humidity environment, test the UV resistant penetration performance of described film, and before test, by described ultraviolet-
The visible spectrophotometer preheating setting time.
5. automotive coatings UV resistant penetration performance method of testing as claimed in claim 1, it is characterised in that also include step
Four: test result judges, is compared with achievement data by the test data obtained, if test data is less than achievement data, be
Qualified, if test data is more than or equal to achievement data, it is defective, achievement data is as follows:
Wave-length coverage 290～400nm, ultraviolet penetrance ＜ 0.02%；
Wave-length coverage 401～430nm, ultraviolet penetrance ＜ 0.1%；
Wave-length coverage 431～470nm, ultraviolet penetrance ＜ 0.25%；
Wave-length coverage 471～500nm, ultraviolet penetrance ＜ 0.5%.
6. automotive coatings UV resistant penetration performance method of testing as claimed in claim 5, it is characterised in that by described index
Data form index curve, then test data is formed trial curve, are compared with described index curve by described trial curve
Relatively, if described trial curve the most all on the right side of described index curve, then be qualified, if described trial curve has one
Point is in the left side of described index curve, the most defective.
7. the automotive coatings UV resistant penetration performance method of testing as described in any one of claim 1-6, it is characterised in that
Before described step one, described method of testing also includes: taking-up part coatings, as test sample, will be surveyed after loading container again
Test agent is diluted, and the temperature of test sample is adjusted to 20 ± 1 DEG C, adjusts viscosity to working solution state.
8. automotive coatings UV resistant penetration performance method of testing as claimed in claim 7, it is characterised in that described iron plate is
Tinplate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610565676.4A CN106248594A (en) | 2016-07-18 | 2016-07-18 | Automotive coatings UV resistant penetration performance method of testing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610565676.4A CN106248594A (en) | 2016-07-18 | 2016-07-18 | Automotive coatings UV resistant penetration performance method of testing |
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| CN106248594A true CN106248594A (en) | 2016-12-21 |
Family
ID=57613859
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610565676.4A Pending CN106248594A (en) | 2016-07-18 | 2016-07-18 | Automotive coatings UV resistant penetration performance method of testing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152237A (en) * | 2018-01-18 | 2018-06-12 | 苏州中汽检测技术服务有限公司 | A kind of automobile sun film anti-ultraviolet property test system and test method |
| CN117538206A (en) * | 2024-01-09 | 2024-02-09 | 常州市武进晨光金属涂料有限公司 | Rapid judging method for use reliability of coating |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152237A (en) * | 2018-01-18 | 2018-06-12 | 苏州中汽检测技术服务有限公司 | A kind of automobile sun film anti-ultraviolet property test system and test method |
| CN117538206A (en) * | 2024-01-09 | 2024-02-09 | 常州市武进晨光金属涂料有限公司 | Rapid judging method for use reliability of coating |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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Application publication date: 20161221 |
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| WD01 | Invention patent application deemed withdrawn after publication |