CN106872308A - A kind of method of use 3D scanning techniques quantitative assessment coating paint film levelability - Google Patents
A kind of method of use 3D scanning techniques quantitative assessment coating paint film levelability Download PDFInfo
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Abstract
A kind of method of use 3D scanning techniques quantitative assessment coating paint film levelability of the present invention, specifically, described method includes：By testing sample making sheet, after maintaining certain hour under prescribed conditions, test marking is carried out to the levelability of paint film with 3D surface coarseness profiling instruments.Compared to the existing film levelling method of testing in this area, the method for the present invention is more objective, have more distinction, and the levelability for evaluating all kinds of emulsion paint products of in the market plays the role of positive.
Description
Technical field
The present invention relates to a kind of novel test and the method for quantitative assessment coating paint film flow leveling, in particular it relates to a kind of method of use 3D scanning techniques quantitative assessment coating paint film flow leveling.
Background technology
The chemical products that coating is a kind of easy construction, cheap, effect is obvious, value-added rates is high.It not only has makes the surface of building, ship, machinery etc. prevent corrosion, the function of increasing the service life, also decorative environment gives the enjoyment of U.S. or the function of eye-catching mark, and with continuing to develop for science and technology, coating progressively turns into a kind of stronger fine chemistry product of specificity.
Levelling refer to coating after application, not yet before drying and forming-film, due to the effect of surface tension, wet paint film can flow and eliminate the painting trace and surface defect of introducing in work progress and gradually taper up into minimum area, form smooth, smooth, uniform coating a process.The levelling quality of coating products directly affects the outward appearance and gloss of film, is an important indicator in coating application performance.
At present, this area is generally according to JB/T 3998-1999《Coating levelability is applied and scrapes determination method》To determine coating products relative levelling.During test, substantially adopt and film is prepared manually, when being evaluated to experimental result, parallel band together has been flowed on statistical test surface to quantity, control levelling grade figure makes levelling grade.If the parallel band of film together, assesses odd number grade to simply most of stream.However, in the above method, being made because the judgement whether parallel band flows together needs to be visually observed by people, lack objective criterion, therefore a unified experimental result cannot be obtained.
In sum, this area can accurately carry out the assay method of quantitative assessment in the urgent need to a kind of objective to coating levelability.
The content of the invention
It is not enough in order to make up the above, 3D scanning techniques are used the invention provides one kind, the assay method of quantitative assessment can be accurately carried out to coating levelability.
A kind of the first aspect of the present invention, there is provided method of test coating paint film flow leveling, methods described includes step：
A () provides levelling film preparing device, some pieces of levelling on-gauge plates of known levelling score, 3D surface coarseness profiling instruments, automatic spray preparing device, coated substrates, and testing sample, the levelling of the levelling on-gauge plate is scored at 1-9 points；
B () determines each levelling on-gauge plate amplitude of wave form using 3D surface coarseness profiling instruments, by Function Fitting, obtain the functional relation between on-gauge plate levelling score and amplitude of wave form；
C () is coated with described testing sample on described coated substrates, so as to obtain film；
After the completion of (d) coating, maintained for described film, so as to form testing sample coating；
E () determines the amplitude of wave form of described testing sample coating using 3D surface coarseness profiling instruments, by functional relation resulting in amplitude of wave form data substitution step (b), so as to quantitatively obtain the levelling score of model.
In another preference, described levelling on-gauge plate is LS-2 levelling on-gauge plates.
In another preference, described coated substrates are glass plate.
In another preference, in described step (c), described being coated in is carried out more than on one piece of coated substrates, preferably 2-6 blocks (being in a preferred embodiment of the invention 3 pieces).
In another preference, described coating is carried out using automatic spray preparing device and levelling film preparing device.
In another preference, described coating includes step：The coated substrates are fixed on automatic spray preparing device, levelling film preparing device is placed on described coated substrates, and testing sample (preferably 5mL) is dripped on substrate, and film is uniformly prepared using automatic spray preparing device.
In another preference, the LTB-2 levellings film preparing device and LS-2 levelling on-gauge plates are the production of Leneta companies, the LS-2 levellings on-gauge plate levelling is scored at 1-9 points, levelling score is interval for 0-10 points (more worse than 1 point of levelling on-gauge plate to be designated as 0 point, than levelling on-gauge plate, 9 points are preferably designated as 10 points), higher to represent levelability better for score among these.
In another preference, the 3D surface coarseness profiling instruments carry out data record with data point spacing as 0.1 μm -0.2 μm.
In another preference, operating rate when described automatic spray preparing device prepares film is 6-10cm/s.
In another preference, described substrate is a width of 20-30cm, the glass plate of a length of 10-50cm.
In another preference, described coating sample to be measured refers to the coating that can be used for direct construction.
In another preference, the amplitude of wave form of the testing sample coating is determined with the functional relation of on-gauge plate levelling score by following steps：
(a1) substrate is provided, LS-2 levelling on-gauge plates is fixed with described substrate；
(b1) LS-2 levelling on-gauge plate surface profiles are determined using 3D surface coarseness profiling instruments, it is preferable that test area 25mm2；
(c1) by Data Processing in Experiment, obtaining the amplitude of wave form numerical value of each on-gauge plate；
(d1) score and amplitude of wave form numerical value to the on-gauge plate carries out mathematical simulation, obtains the functional relation of levelling on-gauge plate amplitude of wave form x and on-gauge plate levelling score y.
In another preference, described levelling on-gauge plate amplitude of wave form x and the functional relation of on-gauge plate levelling score y are as shown in following formula I：
Y=-2.529lnx+8.1607 I.
In another preference, methods described also includes determining film levelling score, wherein, described film levelling score can be determined by following steps：
(a2) substrate is provided, substrate is fixed on automatic spray preparing device；
(b2) the levelling film preparing device is placed on substrate one end described in (a2), coating sample to be measured is added dropwise using fixed-quantity injector in this one end；
(c2) sample film is prepared using automatic spray preparing device, after the completion of coating, the substrate with film is maintained, so as to form testing sample coating；
(d2) substrate of film that is coated with is fixed on 3D surface coarseness profiling instruments, (preferably test area is 25mm to determine film centre surface profile using the 3D surface coarseness profiling instruments2, or 5mm*5mm)；
(e2) by Data Processing in Experiment, obtaining the amplitude of wave form numerical value of the coating sample film；
(f2) during the amplitude of wave form numerical value of the coating sample film is substituted into by the levelling on-gauge plate amplitude of wave form x and the functional relation Ι of on-gauge plate levelling score y obtained by the above method, sample levelling score is obtained.
In another preference, described maintenance includes step：It is coated with being maintained 1 day under the substrate of film is positioned over 25 ± 2 DEG C of environment temperatures.
It should be understood that within the scope of the present invention, can be combined with each other between above-mentioned each technical characteristic of the invention and each technical characteristic for specifically describing in below (eg embodiment), so as to constitute new or preferred technical scheme.As space is limited, no longer tire out one by one herein and state.
Brief description of the drawings
Fig. 1 shows on-gauge plate amplitude of wave form and levelling score graph of a relation；
Fig. 2 shows film microstructure；
Fig. 3 shows the film microstructure that 3D roughness contourgraphs are measured.
Specific embodiment
The present inventor by extensively and in depth studying, develop first it is a kind of can be used in laboratory can quantitative assessment coating paint film flow leveling method.The inventive method is simple to operate, and standard is readily identified, and can accurately quantitative determine the levelability of coating sample, can be widely applied for coating material production field, and standard to coating material production is further limited, so as to improve the oeverall quality of coating material production.
Coating levelability
Research thinks, the driving force of levelling is the surface tension of coating, levelability be coating after application, produce fluid ability, the ability of various surface imperfection shapes is voluntarily sprawled and eliminated in drying process.
At present, the method for being used to measure levelability in this area is that testing surface is lain against into glass plate, and painting is scraped guide plate and is placed on testing surface side, and parallel to testing surface side long, scraper notch downwards, is open to operator, and testing surface distal end is placed on against guide plate.Then, the uniform coating sample that 10mL is transferred to operating viscosity is placed in edge in scraper.Guide plate is compressed on the other hand, and another hand-held scraper is along guide plate from far to closely at the uniform velocity painting is scraped to testing surface near-end.The testing surface horizontal positioned that will be scraped is dried, and stream parallel band together is then observed to quantity, so as to make levelling grade.However, in the above-mentioned methods, applying the process of scraping needs by manual operation, and observes by the naked eye and judge levelling grade, therefore is easily limited by subject's operational error, causes referring to property of result limited.
Verkholantsev thinks that levelability can be evaluated with Adams formula (formula II), it is assumed here that film brush mark is the sine wave shown in accompanying drawing 2：
αt=α0exp[-Cγh3t/(3λ4η)]
α in formula0-- amplitude of wave form when initial；
αt-- the amplitude of wave form after elapsed time t；
C-- constants；
The surface tension of γ -- coating；
The average wet-film thickness of h--；
Elapsed time after t-- wet film brushings；
The wavelength of λ -- brush mark；
The viscosity of η -- coating.
By formula II as can be seen that the viscosity of coating sample is low, brush mark wavelength is short, and amplitude of wave form is small, and average wet-film thickness is big, and sample surfaces tension force is high, and the time of levelling is long, can be favourable to the levelling of sample.Wherein average wet-film thickness is worked with 3 powers, and the wavelength between brush mark is worked with 4 powers.Surface tension is conducive to greatly levelling, but surface tension can not be too high, can otherwise influence wetting and attachment of the coating to basic unit.
Herster thinks, during levelling, coating surface tension force drives levelling, and coating viscous force hinders levelling.Levelling stress can be calculated by Jackman formula (formula III)
τ=8 π3γhα0/λ
τ in formula -- levelling stress, the meaning of other specification is with formula II.
During coating levelling, γ, λ and h are kept approximately constant, therefore levelling stress reduces with the reduction of amplitude of wave form, when levelling stress is equal to or less than the yield stress τ of coating0When, the levelling of film will stop.Therefore, measured by film amplitude of wave form, the levelability of film can be carried out objective and reliably evaluated.
3D surface coarseness profiling instruments
3D surface coarseness profiling instruments are mainly used in evaluation surface quality of workpieces aspect, smaller spacing and the unevenness of small peak valley that the finished surface of part has, the distance between its two crest or two troughs (pitch of waves) very little (in below 1mm), belongs to microcosmos geometric shape error.3D surface coarseness profiling instruments are to carry out data record with data point spacing (being usually 0.125 μm), can effectively measure the trickle feature of body surface.
Applicant has found under study for action, similar to piece surface profile, and the surface condition of coating paint film also belongs to microcosmos geometric shape error.Therefore, with 3D roughness contourgraphs, the micro-shape of coating surface, such as coating surface shown in accompanying drawing 3 can be measured.Therefore, in the methods of the invention, coating paint film amplitude of wave form is determined by using 3D surface coarseness profiling instruments, so that quantitative assessment film levelling.
3D surface coarseness profiling instruments carry out film levelability test
Applicant has found under study for action, using the conventional 3D surface coarseness profiling instruments that be used to determine surface quality of workpieces, can accurately evaluate the amplitude of wave form of coating surface, and then carry out objective for the levelability of film and reliably evaluate.
Specifically, method of testing of the invention includes step：
A () provides levelling film preparing device, some pieces of levelling on-gauge plates of known levelling score, 3D surface coarseness profiling instruments, automatic spray preparing device, coated substrates, and testing sample, the levelling of the levelling on-gauge plate is scored at 1-9 points；
B () determines each levelling on-gauge plate amplitude of wave form using 3D surface coarseness profiling instruments, by Function Fitting, obtain the functional relation between on-gauge plate levelling score and amplitude of wave form；
C () is coated with described testing sample on described coated substrates, so as to obtain film；
After the completion of (d) coating, maintained for described film, so as to form testing sample coating；
E () determines the amplitude of wave form of described testing sample coating using 3D surface coarseness profiling instruments, by functional relation resulting in amplitude of wave form data substitution step (b), so as to quantitatively obtain the levelling score of model.
In another preference, described levelling on-gauge plate is LS-2 levelling on-gauge plates.
In another preference, described method is included testing sample making sheet first, after maintaining certain hour under prescribed conditions, test marking is carried out to the levelability of paint film with 3D surface coarseness profiling instruments.Specifically include step：
A () provides LTB-2 levelling films preparing device, LS-2 levellings on-gauge plate, 3D surface coarseness profiling instruments, automatic spray preparing device, substrate and testing sample, wherein described substrate is glass plate, the LS-2 levellings on-gauge plate levelling is scored at 1-9 points；
B () determines LS-2 levelling on-gauge plate amplitudes of wave form using 3D surface coarseness profiling instruments, the functional relation between on-gauge plate levelling score and amplitude of wave form is obtained by functional simulation；
C the substrate is fixed on automatic spray preparing device by (), LTB-2 levelling film preparing devices are placed on substrate, take testing sample 5mL drops on substrate；
D () uniformly prepares film using automatic spray preparing device, model is positioned under 25 ± 2 DEG C of environment temperatures after the completion of coating is maintained 3 days；
After the completion of the maintenance of (e) model, amplitude of wave form is determined using 3D surface coarseness profiling instruments, amplitude of wave form data are substituted into levelling on-gauge plate amplitude of wave form and on-gauge plate levelling scoring function relational expression, the levelling score for obtaining model can be quantified.
Described coated substrates have no particular limits, and can select the substrate for being arbitrarily appropriate for levelability test.In a preference of the invention, described coated substrates are glass plate.In another preference, described substrate is a width of 20-30cm, the glass plate of a length of 10-50cm.
In another preference, in described step (c), described being coated in is carried out more than on one piece of coated substrates, preferably 2-6 blocks (being in a preferred embodiment of the invention 3 pieces), to carry out parallel testing.
Preferably, described coating is carried out using automatic spray preparing device and levelling film preparing device, so as to the error for overcoming artificial coating brought.In another preference, described coating includes step：The coated substrates are fixed on automatic spray preparing device, levelling film preparing device is placed on described coated substrates, and testing sample (preferably 5mL) is dripped on substrate, and film is uniformly prepared using automatic spray preparing device.
In another preference, the LTB-2 levellings film preparing device and LS-2 levelling on-gauge plates are the production of Leneta companies, the LS-2 levellings on-gauge plate levelling is scored at 1-9 points, levelling score is interval for 0-10 points (more worse than 1 point of levelling on-gauge plate to be designated as 0 point, than levelling on-gauge plate, 9 points are preferably designated as 10 points), higher to represent levelability better for score among these.
In the 3D surface coarseness profiling instruments test process, the parameter of operation can determine according to actual needs.In a preferred embodiment of the invention, the 3D surface coarseness profiling instruments carry out data record with data point spacing as 0.1 μm -0.2 μm, and operating rate when described automatic spray preparing device prepares film is 6-10cm/s.
In another preference, described coating sample to be measured refers to the coating that can be used for direct construction.
In described step (b), described functional relation is to perform mathematical calculations what is learnt by the amplitude of wave form of known levelling on-gauge plate score and the levelling on-gauge plate for measuring.In a preferred embodiment of the invention, the determination method of described functional relation is comprised the following steps：
(a1) substrate is provided, LS-2 levelling on-gauge plates is fixed with described substrate；
(b1) LS-2 levelling on-gauge plate surface profiles, test area 5mm*5mm are determined using 3D surface coarseness profiling instruments；
(c1) by Data Processing in Experiment, the amplitude of wave form numerical value of each on-gauge plate being obtained, as shown in table I；
The on-gauge plate amplitude of wave form data of table I
| Levelling score | Amplitude of wave form/μm | Levelling score | Amplitude of wave form/μm |
| 1 | 15.55 | 6 | 2.09 |
| 2 | 11.55 | 7 | 1.73 |
| 3 | 8.5 | 8 | 1.19 |
| 4 | 5.95 | 9 | 0.705 |
| 5 | 2.79 |
(d1) score and amplitude of wave form numerical value to the on-gauge plate carries out mathematical simulation, obtains the functional relation I of levelling on-gauge plate amplitude of wave form x and on-gauge plate levelling score y；
Y=-2.529lnx+8.1607.
The function curve that fitting is obtained is as shown in Figure 1.
The surface nature of the testing sample coating to be formed is coated by determination sample, and substitutes into above-mentioned standard curve and calculated, it can be deduced that the levelling score of testing sample.Described sample coats and to form the method for coating and have no particular limits, and is prepared it is preferable to employ levelling film preparing device and automatic spray preparing device, to deduct caused error in artificial operation.
In a preferred embodiment of the invention, described method is comprised the following steps：
(a2) substrate is provided, described substrate is at least 20cm for wide, and the glass plate for being at least 10cm long, substrate surface needs no-sundries, substrate is fixed on automatic spray preparing device；
(b2) the LTB-2 levellings film preparing device is placed on substrate one end described in (a2), coating sample 5mL to be measured is added dropwise using fixed-quantity injector in this one end；
(c2) sample film is prepared using automatic spray preparing device, after the completion of coating, is coated with being maintained 1 day under the substrate of film is positioned over 25 ± 2 DEG C of environment temperatures；
(d2) substrate of film that is coated with is fixed on 3D surface coarseness profiling instruments, film centre surface profile, test area 5mm*5mm is determined using the 3D surface coarseness profiling instruments；
(e2) by Data Processing in Experiment, obtaining the amplitude of wave form numerical value of the coating sample film；
(f2) the amplitude of wave form numerical value of the coating sample film is substituted into the functional relation Ι of levelling on-gauge plate amplitude of wave form x and on-gauge plate levelling score y, obtains sample levelling score.
The levelling score of sample is interval to be usually 0-10 points (levelling of levelling on-gauge plate is scored at 1-9 points, and more worse than 1 point of levelling on-gauge plate to be designated as 0 point, than levelling on-gauge plate, 9 points are preferably designated as 10 points).
Beneficial effect of the present invention
(1) the inventive method has filled up the blank to the quantitative determination of coating flow leveling in this area, by the exploration to experimental result, the standard of quantitative determination coating levelling score is determined, can be used in the product quality inspection of production firm, be conducive to the quick discriminating to product quality.
(2) compared to traditional by the personal levelling assessment method felt, the inventive method is accurately determined using high-precision 3D surface coarseness profiling instruments to the surface of sample, it is measured come the levelability to sample, objective qualitative evaluation can not only be carried out to the levelability of sample, and by setting up suitable standard, quantitative assessment can also be carried out to the levelability of sample.
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are only illustrative of the invention and is not intended to limit the scope of the invention.The experimental technique of unreceipted actual conditions in the following example, generally according to normal condition, or according to the condition proposed by manufacturer.
Embodiment
Embodiment 1
Step 1：Testing sample 10 (numbering 1-10) is chosen, film is prepared using automatic spray preparing device and LTB-2 film preparing devices, 3 pieces of models of each sample preparation.
Step 2：Making sheet is maintained 1 day after finishing under 23 ± 2 DEG C, 50%RH environment.
Step 3：Calibration 3D surface coarseness profiling instruments, Pt value≤0.07 μm when making instrument test, and set test area as 5mm*5mm.
Step 4：Test board obtained in step 21 is placed on 3D surface coarseness profiling instrument test desks, controls measurement head to reach measurement position by software.
Step 5：Input sample title in software, and start to determine film coated surface pattern, data processing is carried out using software after the completion of test, obtain the amplitude of wave form of sample.
Step 6：Other sample test plates prepared by step 1 and step 2, repeat step 4 and step 5 are taken respectively, measure its amplitude of wave form.
Step 7：Amplitude of wave form numerical value measured by 3 pieces of test boards of each sample being taken the mean, levelling on-gauge plate amplitude of wave form x and on-gauge plate levelling score y functional relations (formula I) is then substituted into, by can be calculated the levelling score of sample, I is shown in Table.
The roughness contourgraph experimental result of table I
From experimental result it can be seen that, the inventive method is accurately determined using high-precision 3D surface coarseness profiling instruments to the surface of sample, for same sample, the variance very little of the levelling score measured by inventive method, this explanation the inventive method can carry out objective appraisal to the levelability of sample.
Meanwhile, when testing sample flow leveling is close, the experimental result that the inventive method is obtained can intuitively reflect the microcosmic difference of its coating surface, and this explanation the inventive method has more preferable distinction when the levelability of sample is evaluated than prior art.
Embodiment 2
Step 1：Testing sample 10 (numbering 1-10) in selection embodiment 1, and stir；
Step 2：According to JB/T 3998-1999《Coating levelability is applied and scrapes determination method》The film of each testing sample is prepared on a glass；
Step 3：The testing surface horizontal positioned that will be scraped is maintained.Maintenance condition is 23 ± 2 DEG C, maintains 1 day under 50%RH environment；
Step 4：After the completion of maintenance, histological examination personnel evaluate to the levelability of above-mentioned ten samples, and evaluation criterion is with reference to JB/T 3998-1999《Coating levelability is applied and scrapes determination method》
Step 5：Everyone scoring to each sample is recorded, the scoring for obtaining is averaged, obtain sample levelling score, be shown in Table II.
The construction experiment result of table II
Be can be seen that from GB experimental result, for same sample, different experiments person is very big sometimes for the difference between the evaluation of its levelling, the variance of each sample levelling score can be much larger compared to inventive method, this is primarily due to the painting process of scraping needs by manual operation, and observe by the naked eye and judge levelling grade, therefore easily limited by subject's operational error, cause referring to property of result limited.
In sum, the inventive method can not only accomplish good repeatability, and can reasonably evade for issuable error in experimentation, can carry out objective, quantitative evaluation to the levelability of coating products.
The all documents referred in the present invention are all incorporated as reference in this application, are individually recited as with reference to such just as each document.In addition, it is to be understood that after above-mentioned instruction content of the invention has been read, those skilled in the art can make various changes or modifications to the present invention, these equivalent form of values equally fall within the application appended claims limited range.
Claims (10)
1. it is a kind of test coating paint film flow leveling method, it is characterised in that including step：
A () provides levelling film preparing device, some pieces of levelling on-gauge plates of known levelling score, 3D surface coarseness profiling instruments, automatic spray preparing device, coated substrates, and testing sample, the levelling of the levelling on-gauge plate is scored at 1-9 points；
B () determines each levelling on-gauge plate amplitude of wave form using 3D surface coarseness profiling instruments, by Function Fitting, obtain the functional relation between on-gauge plate levelling score and amplitude of wave form；
C () is coated with described testing sample on described coated substrates, so as to obtain film；
After the completion of (d) coating, maintained for described film, so as to form testing sample coating；
E () determines the amplitude of wave form of described testing sample coating using 3D surface coarseness profiling instruments, by functional relation resulting in amplitude of wave form data substitution step (b), so as to quantitatively obtain the levelling score of model.
2. the method for claim 1, it is characterised in that described coated substrates are glass plate.
3. the method for claim 1, it is characterised in that described coating is carried out using automatic spray preparing device and levelling film preparing device.
4. the method for claim 1, it is characterised in that described coating includes step：The coated substrates are fixed on automatic spray preparing device, levelling film preparing device is placed on described coated substrates, and testing sample (preferably 5mL) is dripped on substrate, and film is uniformly prepared using automatic spray preparing device.
5. the method for claim 1, it is characterised in that the 3D surface coarseness profiling instruments carry out data record with data point spacing as 0.1 μm -0.2 μm.
6. method as claimed in claim 3, it is characterised in that operating rate when described automatic spray preparing device prepares film is 6-10cm/s.
7. the method for claim 1, it is characterised in that described substrate is a width of 20-30cm, the glass plate of a length of 10-50cm.
8. the method for claim 1, it is characterised in that the amplitude of wave form of the testing sample coating is determined with the functional relation of on-gauge plate levelling score by following steps：
(a1) substrate is provided, LS-2 levelling on-gauge plates is fixed with described substrate；
(b1) LS-2 levelling on-gauge plate surface profiles are determined using 3D surface coarseness profiling instruments, it is preferable that test area 25mm2；
(c1) by Data Processing in Experiment, obtaining the amplitude of wave form numerical value of each on-gauge plate；
(d1) score and amplitude of wave form numerical value to the on-gauge plate carries out mathematical simulation, obtains the functional relation of levelling on-gauge plate amplitude of wave form x and on-gauge plate levelling score y.
9. the method for claim 1, it is characterised in that the functional relation of described levelling on-gauge plate amplitude of wave form x and on-gauge plate levelling score y is as shown in following formula I：
Y=-2.529lnx+8.1607 I.
10. the method for claim 1, it is characterised in that also including determining film levelling score, wherein, described film levelling score can be determined by following steps：
(a2) substrate is provided, substrate is fixed on automatic spray preparing device；
(b2) the levelling film preparing device is placed on substrate one end described in (a2), coating sample to be measured is added dropwise using fixed-quantity injector in this one end；
(c2) sample film is prepared using automatic spray preparing device, after the completion of coating, the substrate with film is maintained, so as to form testing sample coating；
(d2) substrate of film that is coated with is fixed on 3D surface coarseness profiling instruments, (preferably test area is 25mm to determine film centre surface profile using the 3D surface coarseness profiling instruments2, or 5mm*5mm)；
(e2) by Data Processing in Experiment, obtaining the amplitude of wave form numerical value of the coating sample film；
(f2) the amplitude of wave form numerical value of the coating sample film is substituted into the functional relation Ι of the levelling on-gauge plate amplitude of wave form x and on-gauge plate levelling score y obtained by the method by claim 9, obtains sample levelling score.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109931980A (en) * | 2019-02-02 | 2019-06-25 | 中铝材料应用研究院有限公司 | A kind of evaluation method of aluminium alloy anodization film surface quality |
| CN111175190A (en) * | 2018-11-09 | 2020-05-19 | 立邦涂料（中国）有限公司 | Test method for rapidly evaluating leveling sagging performance of water-based high polymer material by using rotational rheometer |
| CN116660099A (en) * | 2023-07-24 | 2023-08-29 | 绵阳新启科技有限公司 | Water-based paint fluidity detection system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111175190A (en) * | 2018-11-09 | 2020-05-19 | 立邦涂料（中国）有限公司 | Test method for rapidly evaluating leveling sagging performance of water-based high polymer material by using rotational rheometer |
| CN111175190B (en) * | 2018-11-09 | 2022-08-23 | 立邦涂料（中国）有限公司 | Test method for rapidly evaluating leveling sagging performance of water-based high polymer material by using rotational rheometer |
| CN109931980A (en) * | 2019-02-02 | 2019-06-25 | 中铝材料应用研究院有限公司 | A kind of evaluation method of aluminium alloy anodization film surface quality |
| CN116660099A (en) * | 2023-07-24 | 2023-08-29 | 绵阳新启科技有限公司 | Water-based paint fluidity detection system and method |
| CN116660099B (en) * | 2023-07-24 | 2023-10-31 | 绵阳新启科技有限公司 | Water-based paint fluidity detection system and method |
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