CN104422644A - Method for determining permeability-resisting capability of coating - Google Patents
Method for determining permeability-resisting capability of coating Download PDFInfo
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- CN104422644A CN104422644A CN201310379778.3A CN201310379778A CN104422644A CN 104422644 A CN104422644 A CN 104422644A CN 201310379778 A CN201310379778 A CN 201310379778A CN 104422644 A CN104422644 A CN 104422644A
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Abstract
The invention provides a method for determining the permeability-resisting capability of coating. The method comprises the following steps: (a) providing a determination device, a color developing solution and a coating sample to be detected; (b) injecting the color developing solution into the determination device; (c) flatly putting and immersing the coating sample to be detected into the color developing solution, wherein the liquid level of the color developing solution is not higher than the coating sample; (d) taking out the coating sample after the coating sample is immersed for a certain time; and (e) dividing the coating sample from the middle in the longitudinal direction, and measuring the height of the section, dyed by the color developing solution, of the coating sample so as to judge the permeability-resisting capability of the coating sample. According to the method provided by the invention, the permeability of the coating sample can be rapidly and accurately determined so that the degree of the permeability-resisting capability of the coating sample can be judged.
Description
Technical field
The present invention relates to and measure coating permeability resistance technical field, specifically, the present invention relates to a kind of method measuring coating permeability resistance ability.
Background technology
The existing market application of coating is more and more extensive, and especially water paint more and more comes into one's own, and along with the continuous release of a large amount of mid-to high-end products and functional product, has allowed in the application of water paint the step that brand-new.Meanwhile, the basic unit's product matched with the flat painting product various property demands that also demand fulfillment is growing.The waterproof of such as screed and putty layer, permeability resistance effect.
Outer wall material is unavoidable in the face of environment such as severe sleet, if do not provide a kind of water barrier that effectively can block rainwater, the inner wall surface infiltration so often causing house to cause because of rainy climate frequently, even severe patient development evolvement becomes the consequences such as the going mouldy of indoor wall, roof leaking.And water-repellent paint is as having good weatherability, permanance, impervious, the product of density and high bonding force and extremely strong water-tight corrosion-proof effect, its ability blocking rainwater certainly will be that it must possess and check one of characteristic of its product effect.
So, assess with regard to the necessary permeability resistance to coating and detect.
And the method for testing that the permeability resistance of coating is not corresponding in coating GB.
Therefore, this area in the urgent need to a kind of method passing judgment on coating permeability resistance ability fast and accurately, thus can judge a kind of height of coating permeability resistance, thus when formula Design, namely by the optimization of formula, can reduce and even avoid the generation of phenomenon of coating products permeability resistance difference.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of method measuring coating permeability resistance ability, can pass judgment on the height of a coating products permeability resistance quickly and accurately.
For solving the problems of the technologies described above, the invention provides a kind of method measuring coating permeability resistance ability, comprising step:
A () provides determinator, chromophoric solution and coating sample to be measured;
B () injects described chromophoric solution in described determinator;
C described coating sample to be measured keeps flat and immerses in described chromophoric solution by (), the liquid level of described chromophoric solution can have described coating sample;
D described coating sample is taken out by () after certain immersion time; And
E described coating sample is cut open from centre by () in a longitudinal direction, measure the height dyeed by described chromophoric solution in described coating sample cross section, thus judges the permeability resistance ability of described coating sample.
Alternatively, in above-mentioned steps (a), the preparation of described coating sample to be measured comprises step:
(a1) coating is made coating sample, maintain under being placed on a default environment.
Alternatively, in above-mentioned steps (a1), adopt and with the following method coating made coating sample:
Prepare the silica gel frame of some appropriate sizes, cleaning is dried for subsequent use;
Get coating to be measured, with clean hard plastic sheet for ground, with described silica gel frame for mould, make described coating sample.
Alternatively, in above-mentioned steps (a1), described default environment is an adjustable laboratory of humiture, and temperature controlling range is 0 ~ 50 DEG C, and humid control scope is 30 ~ 95%.
Alternatively, carry out maintaining specifically comprising under described coating sample being placed on described default environment:
The described coating sample made is placed on temperature is 23 ± 2 DEG C, humidity is maintain in the environment of 50 ± 5%, service time is 7 ± 1 days.
Alternatively, at second day of maintenance, by the described coating sample demoulding of making; Separately after described coating sample maintenance drying, close with the frame of rosin paraffin by described coating sample.
Alternatively, described determinator comprises a determination unit, and described determination unit is the flat tank of an opening.
Alternatively, described chromophoric solution is for using water-soluble clearly 0.1% methylene blue solution.
Alternatively, the thick size of outside length and width of described silica gel frame is respectively 18CM × 11CM × 5MM, and length and width thick size in inner side is respectively 14CM × 7CM × 5MM.
Alternatively, the described immersion time is 1 hour.
Compared with prior art, the present invention has the following advantages:
The present invention can judge the permeability resistance situation of coating products easily, enormously simplify mensuration program.Also namely the present invention is by observing the height that on coating products cross section, chromophoric solution rises, and correspondence judges the power of coating sample permeability resistance.Therefore, the present invention, for evidence-based when coating development, formula Design, shows the power of coating permeability resistance intuitively.
Accompanying drawing explanation
The above and other features of the present invention, character and advantage become more obvious by passing through below in conjunction with the description of drawings and Examples, wherein:
Fig. 1 is the method flow schematic diagram of the mensuration coating permeability resistance ability of one embodiment of the invention.
Embodiment
The present inventor, through extensive and deep research, by improving the means controlling colour developing mechanism, obtaining method that is fast a kind of and mensuration water-repellent paint permeability resistance ability exactly, completing the present invention on this basis.
Concrete design of the present invention is as follows:
By carrying out color operation to coating sample water absorbing capacity, thus the permeability resistance ability measuring coating is strong and weak.
Below describe in detail to various aspects of the present invention.As no specific instructions, various raw material of the present invention all can be obtained by commercially available; Or prepare according to the conventional method of this area.Unless otherwise defined or described herein, all specialties used herein and scientific words and those skilled in the art the meaning be familiar with identical.In addition any method similar or impartial to described content and material all can be applicable in the inventive method.
Fig. 1 is the method flow schematic diagram of the mensuration coating permeability resistance ability of one embodiment of the invention.As shown in Figure 1, the method flow process can comprise:
Perform step S101, determinator, chromophoric solution and coating sample to be measured are provided;
Perform step S102, in determinator, inject chromophoric solution, notice that liquid level can not be too high;
Perform step S103, coating sample to be measured is kept flat and immerses in chromophoric solution, notice that liquid level can have coating sample;
Perform step S104, after necessarily immersing the time (as 1 hour), coating sample is taken out; And
Perform step S105, coating sample is cut open from centre in a longitudinal direction, is divided into two pieces of small samples, measure the height dyeed by chromophoric solution in coating sample cross section, thus judge the permeability resistance ability of coating sample.
In one particular embodiment of the present invention, in above-mentioned steps S101, the preparation of coating sample to be measured can comprise step:
Coating is made coating sample, maintains under being placed on a default environment.
In a preferred embodiment, can adopt and with the following method coating is made coating sample:
Prepare the silica gel frame of some appropriate sizes (such as, length and width thick size in outside is respectively 18CM × 11CM × 5MM, and length and width thick size in inner side is respectively 14CM × 7CM × 5MM), cleaning is dried for subsequent use;
Get coating to be measured, with clean hard plastic sheet for ground, with silica gel frame for mould, make coating sample.
Require that coating sample inside is without obvious air pocket, smooth surface is smooth, otherwise sample preparation again.Three samples can be prepared in the same way.
In a preferred embodiment, default environment can be an adjustable laboratory of humiture, and temperature controlling range is 0 ~ 50 DEG C, and humid control scope is 30 ~ 95%.
In a preferred embodiment, carry out maintaining specifically comprising under coating sample being placed on default environment:
The coating sample made is placed on temperature is 23 ± 2 DEG C, humidity is maintain in the environment of 50 ± 5%, service time is 7 ± 1 days, makes coating sample to be measured.
In one particular embodiment of the present invention, at second day of maintenance, by the coating sample demoulding of making; At the 4th day of maintenance, after coating sample maintenance drying, close with the frame of rosin paraffin by coating sample.
In one particular embodiment of the present invention, determinator comprises a determination unit, and determination unit is the flat tank of an opening.This determination unit can change do the flat of other shapes can the container of carrying liquid, only otherwise to goal of the invention of the present invention produce and limit; The shell of this determination unit also can adopt various material to obtain, and only otherwise to goal of the invention of the present invention produces and limits.And chromophoric solution is 0.1% methylene blue solution, dissolve with clear water.
In above-mentioned steps S105, cut sample open and only with cutter delineation in the middle of face of being unstained, then need break into two with one's hands along delineation vestige.
Inventor finds, when the fixed value of controlled humidity 100%, only needs an experimental result namely can judge permeability resistance ability, thus greatly simplifies mensuration program.
Be understandable that: foregoing is only illustrate application of principle of the present invention.Those of ordinary skill in the art can make a lot of change and modification, and without departing from the spirit and scope of the present invention, namely following claim includes these and change and modify.Therefore, although the present invention is described with reference to the preferred embodiment scheme of the present invention, but those of ordinary skill in the art can make a lot of change apparently, include but not limited to size, material, shape, method of operating, use etc., but do not depart from principle of the present invention and scope.
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.The experimental technique of unreceipted actual conditions in the following example, usually conveniently condition, or carry out according to the condition that manufacturer advises.Unless otherwise indicated, otherwise all numbers are weight portion, and all number percent is weight percentage, and described polymer molecular weight is number-average molecular weight.
Unless otherwise defined or described herein, all specialties used herein and scientific words and those skilled in the art the meaning be familiar with identical.In addition any method similar or impartial to described content and material all can be applicable in the inventive method.
Adopt determinator of the present invention to measure coating permeability resistance situation:
1, coating permeability resistance special test equipment:
Square flat without upper cover transparent plastic container;
The thick size of several outside length and width is respectively 18CM × 11CM × 5MM, and the thick size of inner length and width is respectively the silica gel frame of 14CM × 7CM × 5MM, as mould.
2, test maintenance environment: be adjustable humiture laboratory, temperature controlling range is 0 ~ 50 DEG C, error ± 2 DEG C; Humid control scope is 30 ~ 95%, error ± 5%;
3,0.1% methylene blue solution.
Concrete method of testing:
1, prepare the thick size of several outside length and width and be respectively 18CM × 11CM × 5MM, the thick size of inner length and width is respectively the silica gel mould frame of 14CM × 7CM × 5MM, and cleaning is dried for subsequent use;
2, get coating sample to be measured, with clean hard plastic sheet for ground, above-mentioned silica gel frame is mould, makes sample.Require that coating inside is without obvious air pocket, smooth surface is smooth, otherwise sample preparation again.Same procedure prepares three samples.
3, maintain second day, by the sample demoulding; Maintain the 4th day, with rosin paraffin, sample frame is closed.
4, the model prepared is put into 23 ± 2 DEG C, the environment of 50 ± 5% maintenance 7 ± 1 days.
5, the test of permeability resistance
5.1, in determinator, inject chromophoric solution, then immerse in nitrite ion by sample, liquid level is about 2/3 of thickness of sample;
5.2, after 1 hour, sample is taken out from nitrite ion, sample is cut open from centre, observe sample and be colored height thus the permeability resistance judging sample.
Cut sample only with cutter delineation in the middle of face of being unstained, then to break into two with one's hands along delineation vestige.Then cross section is colored height thus judges the permeability resistance of sample per sample.
Applicating example:
The situation that seeps water behind 1 hour of three samples is as shown in the table:
Can see from upper table, during the height that three samples A, B, C are colored is respectively, low, high, so its perviousness power be exactly respectively in, strong, weak.
Test in a large number through inventor, the actual permeability resistance of sample of this test is consistent with test findings.
Therefore, the above results represents that perviousness can distinguish the permeability resistance ability of different materials well.
The present invention can judge the permeability resistance ability of coating products easily, enormously simplify mensuration program.Also namely the present invention is by observing the height that on coating products cross section, chromophoric solution rises, and correspondence judges the power of coating sample permeability resistance.Therefore, the present invention, for evidence-based when coating development, formula Design, shows the power of coating permeability resistance intuitively.
The foregoing is only preferred embodiment of the present invention, and be not used to limit substantial technological context of the present invention, substantial technological content of the present invention is broadly defined in the right of application, any technology entities that other people complete or method, if with application right define identical, also or a kind of change of equivalence, be all covered by being regarded as among this right.
The all documents mentioned in the present invention are quoted as a reference all in this application, are just quoted separately as a reference as each section of document.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read foregoing of the present invention, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (10)
1. measure a method for coating permeability resistance ability, comprise step:
A () provides determinator, chromophoric solution and coating sample to be measured;
B () injects described chromophoric solution in described determinator;
C described coating sample to be measured keeps flat and immerses in described chromophoric solution by (), the liquid level of described chromophoric solution can have described coating sample;
D described coating sample is taken out by () after certain immersion time; And
E described coating sample is cut open from centre by () in a longitudinal direction, measure the height dyeed by described chromophoric solution in described coating sample cross section, thus judges the permeability resistance ability of described coating sample.
2. method according to claim 1, is characterized in that, in above-mentioned steps (a), the preparation of described coating sample to be measured comprises step:
(a1) coating is made coating sample, maintain under being placed on a default environment.
3. method according to claim 2, is characterized in that, in above-mentioned steps (a1), adopts and with the following method coating is made coating sample:
Prepare the silica gel frame of some appropriate sizes, cleaning is dried for subsequent use;
Get coating to be measured, with clean hard plastic sheet for ground, with described silica gel frame for mould, make described coating sample.
4. method according to claim 3, is characterized in that, in above-mentioned steps (a1), described default environment is an adjustable laboratory of humiture, and temperature controlling range is 0 ~ 50 DEG C, and humid control scope is 30 ~ 95%.
5. method according to claim 4, is characterized in that, carries out maintaining specifically comprising under described coating sample being placed on described default environment:
The described coating sample made is placed on temperature is 23 ± 2 DEG C, humidity is maintain in the environment of 50 ± 5%, service time is 7 ± 1 days.
6. method according to claim 5, is characterized in that, at second day of maintenance, by the described coating sample demoulding of making; Separately after described coating sample maintenance drying, close with the frame of rosin paraffin by described coating sample.
7. method according to claim 1, is characterized in that, described determinator comprises a determination unit, and described determination unit is the flat tank of an opening.
8. method according to claim 1, is characterized in that, described chromophoric solution is for using water-soluble clearly 0.1% methylene blue solution.
9. method according to claim 3, is characterized in that, the thick size of outside length and width of described silica gel frame is respectively 18CM × 11CM × 5MM, and length and width thick size in inner side is respectively 14CM × 7CM × 5MM.
10. method according to claim 1, is characterized in that, the described immersion time is 1 hour.
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| CN201310379778.3A CN104422644B (en) | 2013-08-27 | 2013-08-27 | The method for determining coating permeability resistance ability |
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| CN201310379778.3A CN104422644B (en) | 2013-08-27 | 2013-08-27 | The method for determining coating permeability resistance ability |
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| CN107607457A (en) * | 2017-09-12 | 2018-01-19 | 天津商业大学 | A kind of method of the hole osmotic effect of quick screening embedded immobilization gel |
| CN107703033A (en) * | 2017-09-30 | 2018-02-16 | 河南理工大学 | A kind of not coal containing methane gas imbibition high measure apparatus and method |
| CN109540761A (en) * | 2018-11-08 | 2019-03-29 | 河海大学 | A kind of polyurea coating infiltration performance test device |
| CN114383988A (en) * | 2020-10-16 | 2022-04-22 | 深南电路股份有限公司 | Method and system for detecting adsorption performance of circuit board |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106932322A (en) * | 2015-12-31 | 2017-07-07 | 立邦涂料（中国）有限公司 | A kind of interior wall tests the method and apparatus of contaminated resistance |
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| CN106680181A (en) * | 2017-02-20 | 2017-05-17 | 赫文波 | WIFI-based timing estimation platform |
| CN106680181B (en) * | 2017-02-20 | 2018-02-16 | 湖南省通信建设有限公司 | Timing estimation platform based on WIFI |
| CN107607457A (en) * | 2017-09-12 | 2018-01-19 | 天津商业大学 | A kind of method of the hole osmotic effect of quick screening embedded immobilization gel |
| CN107703033A (en) * | 2017-09-30 | 2018-02-16 | 河南理工大学 | A kind of not coal containing methane gas imbibition high measure apparatus and method |
| CN107703033B (en) * | 2017-09-30 | 2023-08-22 | 河南理工大学 | Device and method for testing seepage height of coal without gas |
| CN109540761A (en) * | 2018-11-08 | 2019-03-29 | 河海大学 | A kind of polyurea coating infiltration performance test device |
| CN114383988A (en) * | 2020-10-16 | 2022-04-22 | 深南电路股份有限公司 | Method and system for detecting adsorption performance of circuit board |
| CN114383988B (en) * | 2020-10-16 | 2024-04-05 | 深南电路股份有限公司 | Circuit board adsorption performance detection method and detection system |
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| CN104422644B (en) | 2017-07-28 |
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