CN202330220U - Device for measuring contact angle on surface of coating - Google Patents
Device for measuring contact angle on surface of coating Download PDFInfo
- Publication number
- CN202330220U CN202330220U CN 201120438802 CN201120438802U CN202330220U CN 202330220 U CN202330220 U CN 202330220U CN 201120438802 CN201120438802 CN 201120438802 CN 201120438802 U CN201120438802 U CN 201120438802U CN 202330220 U CN202330220 U CN 202330220U
- Authority
- CN
- China
- Prior art keywords
- combination block
- groove
- contact angle
- narrow slit
- parallel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model discloses a device for measuring a contact angle on the surface of a coating, which comprises an upper portion combination block, a lower portion combination block and two test pieces. Two parallel grooves I are arranged on the lower portion combination block, two parallel grooves I are arranged on the upper portion combination block, the test pieces are connected with the upper portion combination block and the lower portion combination block through the grooves I, a narrow seam is formed between the two parallel test pieces, the width of the narrow seam is the same as the space between the grooves I, and the width of the grooves I is the same as the thickness of the test pieces. The width of the parallel narrow seam between the test pieces is 1-2mm, a vertical downward groove II is arranged on the upper portion combination block of the narrow seam at the position of a vertical face perpendicular to the narrow seam, and the central position of the groove II is located at the central point position between the two parallel grooves I. The device for measuring the contact angle on the surface of the coating has the advantages of being convenient to operate, high in measurement efficiency, capable of being dismounted and saving space, economical and suitable for measuring the contact angles of different coating surface properties.
Description
Technical field
The utility model relates to a kind of coating surface contact angle measurement mechanism, belongs to material property evaluation test equipment technical field.
Background technology
Contact angle is the important parameter of reaction dope layer character of surface, often needs to measure the numerical value of contact angle in the design of coating, the use.The measurement mechanism that is used for the coating surface contact angle is actually rare; The measurement mechanism of current material surface contact angle; What introduced like documents (1) CN 101539502 B (P), (2) CN 201811902 U (P) is the one-to-one relationship of utilizing droplet size and contact angle; Obtain the profile of a plurality of drops corresponding to different contact angles; Set up the database of drop profile and contact angle corresponding relation,, thereby obtain the contact angle of liquid then with drop profile phase contrast in the profile of tested drop and the database.Proving installation generally comprises sample adding system, camera system and data acquisition and computer processing system, and equipment needed thereby is more, and operation is relatively complicated, and camera system is prone to aging, and image quality is bigger to the test result influence.Need set up corresponding database to every kind of material before the test, the test job amount is big, influences testing efficiency.Therefore, be necessary to develop a kind of simple, convenient quick, with low cost, be applicable to the contact angle measurement mechanism and the method for testing of research different coating character of surface.
Summary of the invention
To above-mentioned deficiency, the utility model provides a kind of coating surface contact angle measurement mechanism.
The utility model solves the technical scheme that its technical matters adopted:
A kind of coating surface contact angle measurement mechanism comprises top combination block, bottom combination block, two test pieces; Described bottom combination block is provided with two parallel groove I; The top combination block is provided with two parallel groove I; The groove I of bottom combination block equates that with the groove I size of upper chunk described test piece is connected with top combination block, bottom combination block through the groove I, is parallel narrow slit between test piece; Parallel slit width is identical with groove I spacing, and groove I width is identical with thickness of test piece.
Described test piece is the square plate shape, is of a size of length 50～100 mm, height 50～80 mm.
Parallel slit width between test piece is 1～2mm; Narrow slit top combination block is provided with straight down a groove II on the vertical plane vertical with narrow slit; The midpoint of groove II center between two parallel groove I; With the steel wire of liquid level in the restriction test narrow slit straight down, and point to the liquid level center.Described top combination block, bottom combination block are the rectangular parallelepiped of the length of side between 5～20mm.The described parallel groove I degree of depth is 2～8mm, and width is 0.5～3 mm.
A kind of coating surface contact angle method of testing, carry out as follows: with the substrate cleaning, drying, coating evenly be coated be contained on the substrate, treat that the coating bone dry solidifies after, test piece promptly completes;
Coating test piece and combination block are fitted together, and forming wide is the narrow slit of 1～2mm, and a cated side is positioned at narrow slit;
Coating surface contact angle measurement mechanism is vertically put into the container that fills liquid, treat that liquid level is static after, measure the inside and outside liquid level of narrow slit, it is poor to calculate the inside and outside liquid level of narrow slit;
By the contact angle that calculates coating and liquid, wherein h is that the inside and outside liquid level of narrow slit is poor; ρ is a liquid specific gravity; G is an acceleration of gravity; D is the width of narrow slit; α is the surface tension coefficient of liquid; θ is a liquid and the contact angle of contact solid surface.The degree of depth of liquid in containers that fills liquid is greater than 1.5 times of combination block height.
The principle of work of the utility model:
Be vertically placed on the narrow slit that two parallel-plates in the liquid constitute, when reaching the stress balance state, the inside and outside liquid level difference of narrow slit satisfies:, promptly wherein h is that the inside and outside liquid level of narrow slit is poor; ρ is a liquid specific gravity; G is an acceleration of gravity; D is the width of narrow slit; α is the surface tension coefficient of liquid; θ is a liquid and the contact angle of contact solid surface.Record and be in the inside and outside liquid level difference h of equilibrium state narrow slit, can calculate the contact angle θ of liquid and institute's surface in contact.
The beneficial effect of the utility model: 1. this device have device structure simple, be easy to processing and fabricating, with low cost, detachable, save the space, equipment does not need special maintenance, good economy performance.2. operation of equipment is simple, and the tester need not special training, and testing efficiency is high, and measuring accuracy can satisfy scientific research, production actual demand, and is applied widely, can be used as the contact angle measurement mechanism of research different coating character of surface.
Description of drawings
Fig. 1 is a coating surface contact angle measurement mechanism structural representation;
Fig. 2 is the front view of coating surface contact angle measurement mechanism;
Fig. 3 is the left view of coating surface contact angle measurement mechanism;
Fig. 4 is the vertical view of coating surface contact angle measurement mechanism;
Wherein: 1. the bottom combination is fast; 2. the top combination is fast; 3. test piece; 4. groove I; 5. groove II; 6. narrow slit; 7. the container of carrying liquid
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is a coating surface contact angle proving installation synoptic diagram, comprises bottom combination block 1, top combination block 2, test piece 3.Tested paint spraying on the substrate of test piece 3, is stuck in the both sides up and down of test piece 3 in the parallel groove I 4 of bottom combination block 1 and top combination block 2, forms the wide narrow slit 6 of 1～2mm, test piece 3 cated sides are positioned at narrow slit 6.Coating surface contact angle proving installation vertically is placed in the container 7 of carrying liquid, when reaching equilibrium state, it is poor that narrow slit 6 inside and outside liquid levels form certain height; Measure narrow slit 6 outer liquid levels with ruler; Insert in the narrow slit along the vertical groove II 5 of top combination block 2 with finer wire, measure liquid level in the narrow slit, calculate the inside and outside liquid level difference h of narrow slit; By obtaining contact angle, wherein h is that narrow slit 6 inside and outside liquid levels are poor; ρ is a liquid specific gravity; G is an acceleration of gravity; D is the width of narrow slit 6; α is the surface tension coefficient of liquid; θ is a liquid and the contact angle of contact solid surface.
The substrate that present embodiment used coating surface contact angle proving installation test piece 3 is adopted is two and is of a size of 60mm * 50mm, and thickness is the steel plate of 1mm, and a kind of corrosion-resistant conductive coating of application is processed test piece 3 on steel plate.Used 3 combination block sizes are 10mm
3Wooden unit, all open on it two long for 10mm, wide is 1mm, the degree of depth is that two parallel groove I, 4, two parallel groove I, 4 spacings of 7mm are 1.5mm.Wherein top combination block 2 has a groove II 5 straight down on the face vertical with narrow slit 6, the long 10mm of vertical direction, and level and vertical direction are 0.5mm, the midpoint of the center of groove II 5 between two parallel groove I 4.Test piece 3 is assembled into the narrow slit that width is 1.5mm with bottom combination block 1 and top combination block 2, and a cated side is positioned at narrow slit 6.Coating surface contact angle proving installation vertically is placed in the water container, and the depth of water was 20mm before proving installation was put into.Treat that liquid level uses diameter to insert in the narrow slits 6 along the vertical groove II on the top combination block 25 as the steel wire of 0.5mm after static; Demarcate liquid level in the narrow slit 6; Measure narrow slit 6 outer liquid levels, calculate liquid level difference h inside and outside the narrow slit 6, obtain the contact angle θ of the coating that corrosion-resistant conductive coating processes.
Concrete test operating procedure:
1, with the substrate cleaning, drying of the said test piece of present embodiment, corrosion-resistant conductive coating evenly is coated with on the side that is contained in substrate, treat that the coating bone dry solidifies after, test piece 3 promptly completes.
2, coating test piece 3 and bottom combination block 1, top combination block 2 are fitted together, forming wide is the narrow slit 6 of 1.5mm, and a cated side is positioned at narrow slit 6.
3, coating surface contact angle proving installation is vertically put into the said water container 7 of present embodiment; After treating that liquid level is static; Use diameter to insert in the narrow slit 6 along the II of groove straight down 5 of top combination block 2 as the steel wire of 0.5mm; Demarcate liquid level in the narrow slit 6, measure narrow slit 6 outer liquid levels, calculate narrow slit 6 inside and outside liquid level difference h.
4, by the contact angle that calculates the corrosion-resistant conductive coating coating, wherein h is that narrow slit 6 inside and outside liquid levels are poor; ρ is a liquid specific gravity; G is an acceleration of gravity; D is the width of narrow slit 6; α is the surface tension coefficient of liquid; θ is a liquid and the contact angle of contact solid surface.
The substrate that the used contact angle proving installation of present embodiment test piece 3 is adopted is two, and to be of a size of 100mm * 80mm thickness be the glass sheet of 1.5mm, and a kind of corrosion-resistant conductive coating of application is processed test piece 3 on glass sheet.Used 3 combination block sizes are 15 * 15 * 10mm
3Wooden unit, all open on it two long for 15mm, wide is 1.5mm, the degree of depth is that the spacing of two parallel groove I 4, two parallel groove I 4 of 8mm is 2.0mm.Wherein top combination block 2 has a groove II 5 straight down on the face vertical with narrow slit 6, the long 10mm of vertical direction, and level and vertical direction are 0.5mm, the midpoint of the center of groove II 5 between two parallel groove I 4.Test piece 3 is assembled into the narrow slit 6 that width is 2.0mm with combination block, and a cated side is positioned at narrow slit 6.Proving installation is vertically put into water container, and the depth of water was 25mm before proving installation was put into.Treat that liquid level uses diameter to insert in the narrow slits 6 along the vertical groove II on the top combination block 25 as the steel wire of 0.5mm after static; Demarcate liquid level in the narrow slit 6; Measure narrow slit 6 outer liquid levels, calculate liquid level difference h inside and outside the narrow slit 6, obtain the contact angle of the coating that corrosion-resistant conductive coating processes.
Concrete test operating procedure:
1, with the said test piece substrate of present embodiment cleaning, drying, corrosion-resistant conductive coating evenly be coated be contained on the substrate, treat that the coating bone dry solidifies after, test piece 3 promptly completes.
2, test piece 3 and combination block are fitted together, forming wide is the narrow slit 6 of 2.0mm, and test piece 3 cated sides are positioned at narrow slit 6.
3, proving installation is vertically put into the said water container of present embodiment; After treating that liquid level is static; Use diameter to insert in the narrow slit 6 along the II of groove straight down 5 of top combination block 2 as the steel wire of 0.5mm; Demarcate liquid level in the narrow slit 6, measure narrow slit 6 outer liquid levels, calculate narrow slit 6 inside and outside liquid level difference h.
4, by the contact angle that calculates the corrosion-resistant conductive coating coating, wherein the inside and outside liquid level of h narrow slit is poor; ρ is a liquid specific gravity; G is an acceleration of gravity; D is the width of narrow slit; α is the surface tension coefficient of liquid; θ is a liquid and the contact angle of contact solid surface.
Though the above-mentioned accompanying drawing that combines is described the embodiment of the utility model; But be not restriction to the utility model protection domain; On the basis of the technical scheme of the utility model, those skilled in the art need not pay various modifications that creative work can make or distortion still in the protection domain of the utility model.
Claims (5)
1. a coating surface contact angle measurement mechanism is characterized in that: comprise top combination block, bottom combination block, two test pieces; Described bottom combination block is provided with two parallel groove I; The top combination block is provided with two parallel groove I; The groove I of bottom combination block equates that with the groove I size of upper chunk described test piece is connected with top combination block, bottom combination block through the groove I, is parallel narrow slit between test piece; Parallel slit width is identical with groove I spacing, and groove I width is identical with thickness of test piece.
2. coating surface contact angle measurement mechanism as claimed in claim 1, it is characterized in that: described test piece is the square plate shape, is of a size of length 50～100 mm, height 50～80 mm.
3. coating surface contact angle measurement mechanism as claimed in claim 1; It is characterized in that: the parallel slit width between described test piece is 1～2mm; Narrow slit top combination block has straight down a groove II, the midpoint of groove II center between two parallel groove I on the vertical plane vertical with narrow slit.
4. coating surface contact angle measurement mechanism as claimed in claim 1 is characterized in that: described top combination block, bottom chunk are the rectangular parallelepiped of the length of side between 5～20mm.
5. coating surface contact angle measurement mechanism as claimed in claim 1 is characterized in that: the described parallel groove I degree of depth is 2～8mm, and width is 0.5～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120438802 CN202330220U (en) | 2011-11-08 | 2011-11-08 | Device for measuring contact angle on surface of coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120438802 CN202330220U (en) | 2011-11-08 | 2011-11-08 | Device for measuring contact angle on surface of coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202330220U true CN202330220U (en) | 2012-07-11 |
Family
ID=46442198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120438802 Withdrawn - After Issue CN202330220U (en) | 2011-11-08 | 2011-11-08 | Device for measuring contact angle on surface of coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202330220U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507393A (en) * | 2011-11-08 | 2012-06-20 | 国网技术学院 | Coating surface contacting angle measuring device and testing method |
| CN103308427A (en) * | 2013-06-17 | 2013-09-18 | 李明远 | Micro-gap type contact angle measuring instrument |
| CN109211733A (en) * | 2018-09-03 | 2019-01-15 | 赛纳生物科技(北京)有限公司 | A kind of substrate surface detection method and equipment |
-
2011
- 2011-11-08 CN CN 201120438802 patent/CN202330220U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507393A (en) * | 2011-11-08 | 2012-06-20 | 国网技术学院 | Coating surface contacting angle measuring device and testing method |
| CN103308427A (en) * | 2013-06-17 | 2013-09-18 | 李明远 | Micro-gap type contact angle measuring instrument |
| CN109211733A (en) * | 2018-09-03 | 2019-01-15 | 赛纳生物科技(北京)有限公司 | A kind of substrate surface detection method and equipment |
| CN109211733B (en) * | 2018-09-03 | 2021-04-06 | 赛纳生物科技(北京)有限公司 | Method and equipment for detecting surface of substrate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102507393B (en) | Coating surface contacting angle measuring device and testing method | |
| CN100588915C (en) | Canal capacity analyzer and measuring method thereof | |
| CN202330220U (en) | Device for measuring contact angle on surface of coating | |
| CN204594841U (en) | Cigarette tipping paper absorption speed detector | |
| CN203704876U (en) | On-line thickness measuring apparatus for coated paper | |
| CN107101611B (en) | Angle measuring device and angle adjusting method | |
| CN104101288A (en) | Device for measuring concrete surface stripping degree | |
| CN204128473U (en) | A kind of simple type groove depth measurement mechanism | |
| CN203148417U (en) | Repose angle measuring device based on principle of injection method | |
| CN203159736U (en) | Uniform plating test tank | |
| CN201497649U (en) | Surface or near-surface sediment sampler | |
| CN103376307A (en) | Extractor for measuring material migration quantity | |
| CN203606217U (en) | Rapid measurement device after ductility detection of test rod | |
| CN203501957U (en) | Multifunctional depth gauge | |
| CN204924376U (en) | Non -contact tries health monitoring installation in succession | |
| CN203908920U (en) | Salt spray corrosion test chamber | |
| CN202351124U (en) | Tensile test piece measuring support | |
| CN203203654U (en) | Liquid metering device | |
| CN204748391U (en) | A frock clamp for measuring paddle amount of deflection | |
| CN201607195U (en) | Electrode plate thickness measuring device for lead-acid storage battery plate coating process | |
| CN202582701U (en) | Weighing disk | |
| CN205038096U (en) | Analysis water sample cooling device | |
| CN202631390U (en) | Extractor for measuring material migration amount | |
| CN208765612U (en) | Thermostat outlet pipe seal groove cubing | |
| CN203518932U (en) | Measuring tool for detecting grid deformation degree |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120711 Effective date of abandoning: 20130522 |
|
| RGAV | Abandon patent right to avoid regrant |