CN108195872A - A kind of assay method of crack resistance of the coating on fluid sealant - Google Patents
A kind of assay method of crack resistance of the coating on fluid sealant Download PDFInfo
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- CN108195872A CN108195872A CN201711421904.1A CN201711421904A CN108195872A CN 108195872 A CN108195872 A CN 108195872A CN 201711421904 A CN201711421904 A CN 201711421904A CN 108195872 A CN108195872 A CN 108195872A
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- fluid sealant
- coating
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- crack resistance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
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- Physics & Mathematics (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)
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- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a kind of assay method of crack resistance of coating on fluid sealant of technical field of coatings, which is as follows：S1：Fluid sealant is squeezed on the gel slab of clean surface；S2：In one coating of surface even application of fluid sealant；S3：Gel slab is put into baking oven, makes fluid sealant and paint solidification；S4：Heating expands the surface of fluid sealant；S5：Continue to heat at this time, expand fluid sealant continuous surface, until dope layer is torn；S6：Coating crack depth and coating failure width are measured using survey tool；S7：Take the average value of four groups of data, obtain the mean parameter of coating cracking resistance, the present invention passes through the sprayed coating on fluid sealant, there is provided certain temperature and humidity expands fluid sealant, to greatest extent close to the actual use situation of coating, and use four groups of experimental datas, it is ensured that the accuracy of measurement result.
Description
Technical field
The invention discloses a kind of assay methods of crack resistance of coating on fluid sealant, specially technical field of coatings.
Background technology
The detection method of existing coating crack resistance is mostly by detecting flexibility of the coating film on electrophoresis plate come between
Connect evaluation, it is common practice to the flexibility of paint film be evaluated according to the round bar curvature of detection coating, so as to indirectly evaluate
Its crack resistance on fluid sealant.Since the round bar of tensile strength of the coating paint film on fluid sealant and paint film is bent anti-film breakage
Intensity it is different, cause some coating that can reach ideal detected value by round bar curved detection, theoretically approve its tool
There is good flexibility, but after coating is sprayed on fluid sealant in the actual production process, the expansion of fluid sealant stretches still
By paint film drawing crack, therefore cracking resistance of the coating on fluid sealant can not accurately be evaluated.For this purpose, we have proposed a kind of coating
The assay method of crack resistance on fluid sealant comes into operation, to solve the above problems.
Invention content
The purpose of the present invention is to provide a kind of assay method of crack resistance of coating on fluid sealant, to solve the above-mentioned back of the body
The problem of being proposed in scape technology.
To achieve the above object, the present invention provides following technical solution：A kind of survey of crack resistance of the coating on fluid sealant
Determine method, which is as follows：
S1：Fluid sealant is squeezed on the gel slab of clean surface；
S2：In one coating of surface even application of fluid sealant；
S3：Gel slab is put into baking oven, makes fluid sealant and paint solidification；
S4：Continue to heat in an oven, expand the surface of fluid sealant；
S5：For cured coating due to the effect of pullling expanded by fluid sealant, surface is cracked, continues to add at this time
Heat expands fluid sealant continuous surface, until dope layer is torn；
S6：The cured coating of synchronous recording cracked time, crack number and coating failure time, and use survey
Amount tool measures coating crack depth and coating failure width；
S7：Four groups of gel slabs is taken to repeat the above steps S1~6, four groups of experimental datas is obtained, takes the average value of four groups of data,
Obtain the mean parameter of coating cracking resistance.
Preferably, it tells in step S1, gel slab is one kind in polyacrylamide, agarose and starch gel plate.
Preferably, in the step S3, the temperature of baking oven is 60~80 DEG C, and in an oven control humidity for 30~
40%.
Preferably, in the step S4, the temperature for continuing heating is 60~70 DEG C, and it is 20~30% to control humidity.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention provides one by the sprayed coating on fluid sealant
Fixed temperature and humidity expands fluid sealant, to greatest extent close to the actual use situation of coating, and uses four groups of experiment numbers
According to, it is ensured that the accuracy of measurement result, the thickness of the fluid sealant in the present invention and the thickness of coating can be according to use sites
Technological requirement and production requirement controlled, suitable for the measurement to the coating breaking resistance on fluid sealant and putty plate
It uses.
Description of the drawings
Fig. 1 measures flow chart for the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention provides a kind of technical solution：A kind of measure side of crack resistance of the coating on fluid sealant
Method, the assay method are as follows：
S1：Fluid sealant is squeezed on the gel slab of clean surface, gel slab is coagulated for polyacrylamide, agarose and starch
One kind in offset plate；
S2：In one coating of surface even application of fluid sealant；
S3：Gel slab is put into baking oven, makes fluid sealant and paint solidification, the temperature of baking oven is 60~80 DEG C, and
It is 30~40% that humidity is controlled in baking oven；
S4：Continuing to heat in an oven, expand the surface of fluid sealant, the temperature for continuing heating is 60~70 DEG C,
And it is 20~30% to control humidity；
S5：For cured coating due to the effect of pullling expanded by fluid sealant, surface is cracked, continues to add at this time
Heat expands fluid sealant continuous surface, until dope layer is torn；
S6：The cured coating of synchronous recording cracked time, crack number and coating failure time, and use survey
Amount tool measures coating crack depth and coating failure width；
S7：Four groups of gel slabs is taken to repeat the above steps S1~6, four groups of experimental datas is obtained, takes the average value of four groups of data,
Obtain the mean parameter of coating cracking resistance.
The present invention is by the sprayed coating on fluid sealant, and providing certain temperature and humidity expands fluid sealant, maximum limit
The actual use situation close to coating of degree, and use four groups of experimental datas, it is ensured that the accuracy of measurement result, in of the invention
The thickness of fluid sealant and the thickness of coating can be controlled according to the technological requirement and production requirement of use site, be applicable in
In the measurement use to the coating breaking resistance on fluid sealant and putty plate.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of assay method of crack resistance of coating on fluid sealant, it is characterised in that：The specific steps of the assay method are such as
Under：
S1：Fluid sealant is squeezed on the gel slab of clean surface；
S2：In one coating of surface even application of fluid sealant；
S3：Gel slab is put into baking oven, makes fluid sealant and paint solidification；
S4：Continue to heat in an oven, expand the surface of fluid sealant；
S5：For cured coating due to the effect of pullling expanded by fluid sealant, surface is cracked, continues to heat at this time, make
Fluid sealant continuous surface expands, until dope layer is torn；
S6：The cured coating of synchronous recording cracked time, crack number and coating failure time, and use measurement work
Tool measures coating crack depth and coating failure width；
S7：Four groups of gel slabs is taken to repeat the above steps S1~6, obtain four groups of experimental datas, take the average value of four groups of data to get
To the mean parameter of coating cracking resistance.
2. a kind of assay method of crack resistance of the coating according to claim 1 on fluid sealant, it is characterised in that：It is told
In step S1, gel slab is one kind in polyacrylamide, agarose and starch gel plate.
3. a kind of assay method of crack resistance of the coating according to claim 1 on fluid sealant, it is characterised in that：It is described
In step S3, the temperature of baking oven is 60~80 DEG C, and control humidity is 30~40% in an oven.
4. a kind of assay method of crack resistance of the coating according to claim 1 on fluid sealant, it is characterised in that：It is described
In step S4, the temperature for continuing heating is 60~70 DEG C, and it is 20~30% to control humidity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711421904.1A CN108195872A (en) | 2017-12-25 | 2017-12-25 | A kind of assay method of crack resistance of the coating on fluid sealant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711421904.1A CN108195872A (en) | 2017-12-25 | 2017-12-25 | A kind of assay method of crack resistance of the coating on fluid sealant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108195872A true CN108195872A (en) | 2018-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711421904.1A Pending CN108195872A (en) | 2017-12-25 | 2017-12-25 | A kind of assay method of crack resistance of the coating on fluid sealant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255263A (en) * | 2020-12-22 | 2021-01-22 | 南京仪汇仪器设备有限公司 | Sealant high-temperature-resistant testing device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644785A (en) * | 2017-02-08 | 2017-05-10 | 廊坊立邦涂料有限公司 | Method for testing crack-resistant property of coating on sealant |
| CN107389881A (en) * | 2017-09-19 | 2017-11-24 | 廊坊立邦涂料有限公司 | A kind of detection method of the matching of coating and fluid sealant |
-
2017
- 2017-12-25 CN CN201711421904.1A patent/CN108195872A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644785A (en) * | 2017-02-08 | 2017-05-10 | 廊坊立邦涂料有限公司 | Method for testing crack-resistant property of coating on sealant |
| CN107389881A (en) * | 2017-09-19 | 2017-11-24 | 廊坊立邦涂料有限公司 | A kind of detection method of the matching of coating and fluid sealant |
Non-Patent Citations (1)
| Title |
|---|
| 朱香芹: "汽车涂装的焊缝密封和底涂工艺", 《科技纵横》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255263A (en) * | 2020-12-22 | 2021-01-22 | 南京仪汇仪器设备有限公司 | Sealant high-temperature-resistant testing device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180622 |
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| RJ01 | Rejection of invention patent application after publication |