Device for testing water impact resistance of super-hydrophobic coating

Abstract

The utility model belongs to the technical field of coating testing, and discloses a super-hydrophobic coating water impact resistance testing device which comprises a sample table, a water storage pond, a peristaltic pump, a buffer cup and a support, a sample is placed on a supporting seat of the sample table, the supporting seat is obliquely arranged and adjustable in angle, the sample table is placed in the water storage pond, the sample is located above the water storage pond, and the peristaltic pump is arranged on the supporting seat. The peristaltic pump is respectively connected with a water inlet pipe and a water outlet pipe, the peristaltic pump can pump water in the water storage tank into the water outlet pipe through the water inlet pipe, the buffer cup is arranged perpendicular to the sample table, the water outlet pipe is connected to the top of the buffer cup, the buffer cup can flow water to the top of a sample, and the buffer cup is arranged on the support in a position adjustable mode. The angle between the sample and the test water flow can be changed through the supporting seat, the water is recycled through the water storage tank, and the problem of water flow pulse generated by directly using the peristaltic pump is solved through the buffer cup.

Description

Technical Field

[0001] The utility model relates to the technical field of coating testing, in particular to a super-hydrophobic coating water impact resistance testing device. Background Art

[0002] By studying the leaves of plants with super-hydrophobicity in nature, a coating with a super-hydrophobic surface can be prepared. Specifically, the material surface of such coatings has a relatively low surface energy, and the material surface needs to construct a dual structure with microns and nanometers of a certain roughness. Thus, by the above-mentioned bionic technology, super-hydrophobic coatings are applied on solid surfaces and will form a micro-nano structure similar to a lotus leaf, so that the solid surface has super-hydrophobic properties. However, since the surface of the super-hydrophobic material is a discontinuous rough surface, its water impact resistance is relatively weak relative to traditional smooth coatings, and water impact resistance is an important indicator of the durability of super-hydrophobic coatings. In this regard, a special water flushing device can be used in the prior art to test, but there is pulse instability in the water flow during the test for the water flushing device of the super-hydrophobic coating water resistance test, and it is difficult to reuse, and the angle between the sample and the water flow cannot be changed in time, which will affect the effect of its water resistance test. Therefore, how to ensure that the super-hydrophobic coating does not have a pulse problem in the water flow during the water resistance test, and it can be reused, and the angle between the sample and the water flow can be changed. It is a problem that the current technicians in the field need to solve. Utility Model Content

[0003] The purpose of the utility model is to provide a super-hydrophobic coating water impact resistance testing device to ensure that there is no pulse problem in the water flow during the water resistance test of the super-hydrophobic coating, and the device can be reused and can change the angle between the sample and the water flow.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A super-hydrophobic coating water impact resistance test device, comprising:

[0006] A sample stage, on which the sample is placed a support seat, the support seat being tilted and adjustable in angle;

[0007] A water reservoir, wherein the sample stage is placed in the water reservoir, and the sample is located above the water reservoir;

[0008] A peristaltic pump, the peristaltic pump is respectively connected to a water inlet pipe and a water outlet pipe, and the peristaltic pump can pump water in the water storage tank to the water outlet pipe through the water inlet pipe;

[0009] A buffer cup, the buffer cup is arranged vertically to the sample stage, and the water outlet pipe is connected to the top of the buffer cup, and the buffer cup can flow water on the top of the sample;

[0010] A bracket is provided on which the buffer cup is adjustably positioned.

[0011] Optionally, the sample table is also provided with a base and an adjustment component, the base is arranged in the water tank, the support seat and the adjustment component are rotatably connected to the base, and the adjustment component is arranged below the support seat for adjusting the inclination angle of the support seat.

[0012] Optionally, the sample stage is further provided with a fixed block and a support rod, wherein the fixed block is provided on the support seat, the support rod is provided on the base, the adjustment component is connected to the support seat via the fixed block, and the adjustment component is rotatably connected to the support rod.

[0013] As an option, the adjustment assembly includes a nut, a screw and a first adjustment knob, one end of the screw is connected to the fixed block and can rotate relative to the fixed block, the nut is threadedly connected to the screw and rotationally connected to the support rod, and the first adjustment knob is fixedly connected to the other end of the screw.

[0014] As an option, the sample stage is provided with a first rotating shaft and a second rotating shaft, the support seat is rotatably connected to the base via the first rotating shaft, and the adjustment assembly is rotatably connected to the support rod via the second rotating shaft.

[0015] As an option, the sample stage is provided with a third rotating shaft, and the support rod is rotatably connected to the base via the third rotating shaft.

[0016] Optionally, a support plate is provided on the support seat for supporting and limiting the sample.

[0017] Optionally, the peristaltic pump is provided with a second adjusting knob for adjusting the pumping speed.

[0018] Optionally, a nozzle is provided at the bottom of the buffer cup.

[0019] Optionally, an adjusting slider is provided on the bracket, the buffer cup is connected to the adjusting slider via a fixing rod, and the adjusting slider can move in a vertical direction.

[0020] Beneficial effects of the utility model:

[0021] The utility model can provide stable support for the sample through the sample table. Specifically, the sample is placed on a support seat on the sample table that is tilted and adjustable in angle, so that the angle between the sample and the test water flow can be changed to change the test conditions and obtain more accurate test results. In the utility model, the sample table is placed in a water reservoir, and the water reservoir, peristaltic pump and buffer cup are connected together through an inlet pipe and an outlet pipe, which can not only realize the recycling of water and save energy, but also the buffer cup can flow water on the top of the sample to perform water resistance testing. The buffer cup can solve the problem of water flow pulses generated by directly using a peristaltic pump, thereby ensuring that the water flow on the sample is more stable, thereby ensuring the test effect. Furthermore, the buffer cup is adjustably arranged on the bracket, which not only allows the water in the buffer cup to flow according to gravity, but also allows the distance between the buffer cup and the sample to be adjusted as needed, thereby changing the impact effect of the water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a super-hydrophobic coating water impact resistance testing device according to an embodiment of the present utility model;

[0023] Figure 2 1 is a front view schematic diagram of a sample stage in a super-hydrophobic coating water impact resistance testing device according to an embodiment of the present utility model;

[0024] Figure 3 It is a side view schematic diagram of a sample stage in a super-hydrophobic coating water impact resistance testing device described in an embodiment of the present utility model.

[0025] In the figure:

[0026] 100-sample; 10-sample stage; 20-water reservoir; 30-peristaltic pump; 40-buffer cup; 50-bracket;

[0027] 11-base; 12-support seat; 13-adjustment assembly; 131-nut; 132-screw; 133-first adjustment knob; 14-fixing block; 15-support rod; 101-support plate; 102-first rotating shaft; 103-second rotating shaft;

[0028] 301 - water inlet pipe; 302 - water outlet pipe; 303 - second adjustment knob; 401 - nozzle; 501 - adjustment slider. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, it can be a mechanical connection or an electrical connection, it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the description of the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] By studying the leaves of plants with super-hydrophobicity in nature, a coating with a super-hydrophobic surface can be prepared. Specifically, the material surface of such coatings has a relatively low surface energy, and the material surface needs to construct a dual structure with microns and nanometers of a certain roughness. Thus, by the above-mentioned bionic technology, super-hydrophobic coatings are applied on solid surfaces and will form a micro-nano structure similar to a lotus leaf, so that the solid surface has super-hydrophobic properties. However, since the surface of the super-hydrophobic material is a discontinuous rough surface, its water impact resistance is relatively weak relative to traditional smooth coatings, and water impact resistance is an important indicator of the durability of super-hydrophobic coatings. In this regard, a special water flushing device can be used in the prior art to test, but there is pulse instability in the water flow during the test for the water flushing device of the super-hydrophobic coating water resistance test, and it is difficult to reuse, and the angle between the sample and the water flow cannot be changed in time, which will affect the effect of its water resistance test. Therefore, how to ensure that the super-hydrophobic coating does not have a pulse problem in the water flow during the water resistance test, and it can be reused, and the angle between the sample and the water flow can be changed. It is a problem that the current technicians in the field need to solve.

[0033] The technical solution of this embodiment is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0034] like Figure 1-Figure 3As shown, this embodiment provides a super-hydrophobic coating water impact resistance testing device, including a sample table 10, a water reservoir 20, a peristaltic pump 30, a buffer cup 40 and a bracket 50, the sample 100 is placed on the support seat 12 of the sample table 10, the support seat 12 is tilted and the angle is adjustable, the sample table 10 is placed in the water reservoir 20, the sample 100 is located above the water reservoir 20, the peristaltic pump 30 is respectively connected to an inlet pipe 301 and an outlet pipe 302, the peristaltic pump 30 can pump water in the water reservoir 20 to the outlet pipe 302 through the inlet pipe 301, the buffer cup 40 is arranged perpendicular to the sample table 10, and the outlet pipe 302 is connected to the top of the buffer cup 40, the buffer cup 40 can flow water on the top of the sample 100, and the buffer cup 40 is adjustably arranged on the bracket 50.

[0035] Specifically, the present embodiment can provide stable support for the sample 100 through the sample table 10. Specifically, the sample 100 is placed on a support seat 12 on the sample table 10 that is tilted and adjustable in angle, so that the angle between the sample 100 and the test water flow can be changed to change the test conditions and obtain more accurate test results. In the present embodiment, the sample table 10 is placed in a water reservoir 20, and the water reservoir 20, the peristaltic pump 30 and the buffer cup 40 are connected together through an inlet pipe 301 and an outlet pipe 302, which can not only realize the recycling of water and save energy, but also the buffer cup 40 can flow water on the top of the sample 100 for water resistance testing. The buffer cup 40 can solve the problem of water flow pulses generated by directly using the peristaltic pump 30, thereby ensuring that the water flow on the sample 100 is more stable, thereby ensuring the test effect. Furthermore, the buffer cup 40 is adjustably disposed on the bracket 50, which not only allows the water in the buffer cup 40 to flow according to gravity, but also allows the distance between the buffer cup 40 and the sample 100 to be adjusted as needed, thereby changing the impact effect of the water flow.

[0036] The specific structure of the super-hydrophobic coating water impact resistance testing device in this embodiment is described below.

[0037] like Figure 1As shown, the super hydrophobic coating water impact resistance test device in this embodiment includes a sample stage 10, a water reservoir 20, a peristaltic pump 30, a buffer cup 40 and a bracket 50. Optionally, the sample stage 10 is placed in the water reservoir 20, and the sample 100 is placed on the sample stage 10 and is located above the water reservoir 20, so as to ensure the stable placement of the sample 100, and to avoid being immersed in the water reservoir 20 to affect the subsequent test results. Exemplarily, in this embodiment, the sample 100 is tilted under the action of the sample stage 10, and its tilt angle is adjustable, so that tests at different angles can be performed. Further, the peristaltic pump 30 is respectively connected with an inlet pipe 301 and an outlet pipe 302, and the buffer cup 40 is adjustably arranged on the bracket 50 to facilitate the adjustment of the position of the buffer cup 40, and the buffer cup 40 is arranged perpendicular to the sample stage 10. Specifically, the two ends of the water inlet pipe 301 are respectively connected to the inside of the water reservoir 20 and the peristaltic pump 30, and the two ends of the water outlet pipe 302 are respectively connected to the peristaltic pump 30 and the top of the buffer cup 40, so that the peristaltic pump 30 can pump the water in the water reservoir 20 to the water outlet pipe 302 through the water inlet pipe 301, and then to the buffer cup 40, and then the water flows out to the top of the sample 100 through the buffer cup 40 to test the water impact resistance of the super-hydrophobic coating on the sample 100. At the same time, the water flowing out of the buffer cup 40 on the sample 100 can slide into the water reservoir 20, so as to be extracted and used again by the peristaltic pump 30, thereby realizing the recycling of the water in the water reservoir 20, saving energy and greatly improving the economy of the test.

[0038] Combination Figure 2 and Figure 3 As shown, in this embodiment, the sample stage 10 includes a base 11, a support seat 12, an adjustment assembly 13, a fixing block 14 and a support rod 15, and a support plate 101 is provided on the support seat 12, and the adjustment assembly 13 includes a nut 131, a screw rod 132 and a first adjustment knob 133. Optionally, the sample stage 10 is further provided with a first rotating shaft 102 and a second rotating shaft 103, and a third rotating shaft is also provided in other embodiments.

[0039] Optionally, in this embodiment, the base 11 is installed in the water tank 20, and the sample 100 is placed on the support seat 12, and the support seat 12 is tilted and the angle is adjustable, so as to ensure that the water flowing out of the buffer cup 40 from the top of the sample 100 can slide along its surface to achieve the test effect. Specifically, the support seat 12 and the adjustment component 13 are both rotatably connected to the base 11, and the adjustment component 13 is arranged below the support seat 12, and is used to adjust the tilt angle of the support seat 12, so as to achieve the tilt setting of the sample 100. Optionally, in this embodiment, the fixed block 14 is arranged on the support seat 12, and the support rod 15 is arranged on the base 11, so that the adjustment component 13 is connected to the support seat 12 through the fixed block 14, so as to achieve a stable connection between the adjustment component 13 and the support seat 12, and at the same time, the adjustment component 13 is rotatably connected to the support rod 15 to ensure that the support rod 15 will not interfere with it during the angle adjustment process.

[0040] Exemplarily, the adjustment assembly 13 in this embodiment includes a nut 131, a screw rod 132 and a first adjustment knob 133. Specifically, one end of the screw rod 132 is connected to the fixed block 14 and can rotate relative to the fixed block 14, the nut 131 is screwed to the screw rod 132 and is rotatably connected to the support rod 15, and the first adjustment knob 133 is fixed to the other end of the screw rod 132, so that the screw rod 132 can be driven to rotate synchronously with it by rotating the first adjustment knob 133, thereby realizing the movement of the nut 131 on the screw rod 132 along its axial direction. Furthermore, in the present embodiment, a limit block (not shown in the figure) is provided between the nut 131 and the first adjusting knob 133. The limit block is fixedly provided under the support seat 12 and is sleeved on the outer side of the screw rod 132. The screw rod 132 can also rotate relative to the limit block, thereby ensuring that when the screw rod 132 rotates under the action of the first adjusting knob 133, the limit block and the fixed block 14 will not interfere with its movement. The limit block and the fixed block 14 can limit the movement range of the nut 131, thereby improving the stability of the screw rod 132 during rotation. Illustratively, in this embodiment, an adapter block is sleeved on the outer side of the nut 131, and the nut 131 can rotate relative to the adapter block, and the adapter block is rotatably connected to the support rod 15, so that when the nut 131 moves on the screw rod 132, the adapter block will not only not interfere with the rotation of the nut 131, but also can move on the screw rod 132 synchronously with the nut 131, and force the support seat 12 to deflect its angle when it is rotatably connected between the support rod 15 to complete the angle adjustment.

[0041] Optionally, the sample stage 10 in this embodiment is provided with a first rotating shaft 102 and a second rotating shaft 103. Specifically, the support seat 12 is rotatably connected to the base 11 through the first rotating shaft 102, and the adapter block sleeved on the outside of the nut 131 in the adjustment assembly 13 is rotatably connected to the support rod 15 through the second rotating shaft 103, so that when the first adjustment knob 133 is rotated, the screw 132 rotates, but the position of the screw 132 cannot be moved due to the restriction that the fixed block 14 and the limit block are fixedly connected to the support seat 12, so that the nut 131 screwed to the screw 132 moves along the axial direction of the screw 132, and then the adapter block sleeved on the outside of the nut 131 moves synchronously with it, and the angle deflection of the support seat 12 is achieved under the action of the second rotating shaft 103 and the first rotating shaft 102. Exemplarily, in this embodiment, the sample stage 10 is also provided with a third rotating shaft, and the bottom end of the support rod 15 is rotatably connected to the base 11 through the third rotating shaft, so as to expand its angle adjustment range. Specifically, there is a certain rotation resistance between the support rod 15 and the base 11, so as to ensure that the support seat 12 can be stably supported.

[0042] Combination Figure 1 and Figure 2 As shown, specifically, in this embodiment, a support plate 101 is provided on the support seat 12 to support and limit the sample 100 to prevent the sample 100 from falling off the support seat 12 when adjusting the inclination angle of the support seat 12 or performing the test. Further, a second adjustment knob 303 is also provided on the peristaltic pump 30 to adjust the pumping speed, thereby controlling the speed of the water flow out of the buffer cup 40 in real time during the test. Further, a nozzle 401 is provided at the bottom of the buffer cup 40 to ensure that the water flows out of the top of the sample 100 accurately and quickly. Optionally, an adjustment slider 501 is provided on the bracket 50, and the buffer cup 40 is connected to the adjustment slider 501 through a fixing rod, and the adjustment slider 501 can move in the vertical direction, so that the distance between the buffer cup 40 and the sample 100 can be adjusted, and then the water flow height of the nozzle 401 can be adjusted to achieve different test effects.

[0043] Test method for water impact resistance of super hydrophobic coating:

[0044] A super hydrophobic coating is applied on a glass slide to prepare sample 100;

[0045] Fill the water tank 20 with water, and insert one end of the water inlet pipe 301 into the water tank 20;

[0046] Turn on the peristaltic pump 30 so that the water in the water reservoir 20 is pumped into the buffer cup 40;

[0047] The water in the buffer cup 40 flows out through the nozzle 401, and when the water in the buffer cup 40 reaches a certain height, the speed at which the peristaltic pump 30 adds water is the same as the speed at which the water flows out of the nozzle 401, thereby ensuring the stability of the water flow out of the nozzle 401;

[0048] After the water flow from the nozzle 401 is stable, the sample 100 is placed on the support plate 101, and the water flow is allowed to flow to the top of the sample 100, and then the timing is started;

[0049] The sample 100 is removed every 5 minutes to test the contact angle and the rolling angle. If the contact angle is greater than 150° and the rolling angle is less than 10°, the sample 100 is replaced on the support plate 101 to continue the test. Otherwise, the test is stopped and the test time is recorded.

[0050] Thus, the super-hydrophobic coating water impact resistance test device in the present embodiment is used and the water impact resistance test of the sample 100 can be achieved by the above method. And the peristaltic pump 30 flow rate in the present embodiment can be adjusted as needed, as a power source to promote the flow of water, and the water tank 20 is also used in the present embodiment to realize the recycling of water and save energy. Further, the angle of the support seat 12 is adjustable, and the impact angle of the water flow can be changed according to actual needs. The buffer cup 40 is used for testing, and the problem of pulses in the water flow when the peristaltic pump 30 is used directly can be solved, so as to ensure the stability of the water flow output. Further, the support plate 101 on the support seat 12 can also facilitate the sample 100 to be placed and taken, and ensure that it will not fall during the test.

[0051] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A super-hydrophobic coating water impact resistance test device, characterized in that: include: A sample stage (10), wherein the sample (100) is placed on a support seat (12) of the sample stage (10), wherein the support seat (12) is tilted and has an adjustable angle; A water reservoir (20), wherein the sample platform (10) is placed in the water reservoir (20), and the sample (100) is located above the water reservoir (20); a peristaltic pump (30), wherein the peristaltic pump (30) is respectively connected to a water inlet pipe (301) and a water outlet pipe (302), and the peristaltic pump (30) is capable of pumping water in the water storage tank (20) to the water outlet pipe (302) through the water inlet pipe (301); A buffer cup (40), the buffer cup (40) being arranged perpendicular to the sample platform (10), and the water outlet pipe (302) being connected to the top of the buffer cup (40), and the buffer cup (40) being capable of flowing water on the top of the sample (100); A bracket (50), wherein the buffer cup (40) is arranged on the bracket (50) in an adjustable manner.

2. The super hydrophobic coating water impact resistance testing device according to claim 1, characterized in that: The sample stage (10) is further provided with a base (11) and an adjustment component (13); the base (11) is seated in the water storage tank (20); the support seat (12) and the adjustment component (13) are both rotatably connected to the base (11); and the adjustment component (13) is arranged below the support seat (12) for adjusting the inclination angle of the support seat (12).

3. The super hydrophobic coating water impact resistance testing device according to claim 2, characterized in that, The sample stage (10) is also provided with a fixed block (14) and a support rod (15), wherein the fixed block (14) is arranged on the support seat (12), and the support rod (15) is arranged on the base (11); the adjustment component (13) is connected to the support seat (12) via the fixed block (14), and the adjustment component (13) is rotatably connected to the support rod (15).

4. The super hydrophobic coating water impact resistance testing device according to claim 3, characterized in that: The adjustment assembly (13) comprises a nut (131), a screw rod (132) and a first adjustment knob (133); one end of the screw rod (132) is connected to the fixed block (14) and can rotate relative to the fixed block (14); the nut (131) is screwed to the screw rod (132) and is rotationally connected to the support rod (15); and the first adjustment knob (133) is fixed to the other end of the screw rod (132).

5. The super hydrophobic coating water impact resistance testing device according to claim 3, characterized in that: The sample stage (10) is provided with a first rotating shaft (102) and a second rotating shaft (103); the support seat (12) is rotatably connected to the base (11) via the first rotating shaft (102); and the adjustment component (13) is rotatably connected to the support rod (15) via the second rotating shaft (103).

6. The super hydrophobic coating water impact resistance testing device according to claim 3, characterized in that: The sample stage (10) is provided with a third rotating shaft, and the support rod (15) is rotatably connected to the base (11) via the third rotating shaft.

7. The super-hydrophobic coating water impact resistance testing device according to any one of claims 1 to 6, characterized in that: The support seat (12) is provided with a support plate (101) for supporting and limiting the position of the sample (100).

8. The super-hydrophobic coating water impact resistance testing device according to any one of claims 1 to 6, characterized in that: The peristaltic pump (30) is provided with a second adjusting knob (303) for adjusting the pumping speed.

9. The super-hydrophobic coating water impact resistance testing device according to any one of claims 1 to 6, characterized in that: The bottom of the buffer cup (40) is provided with a nozzle (401).

10. The super hydrophobic coating water impact resistance testing device according to any one of claims 1 to 6, characterized in that: An adjusting slider (501) is provided on the bracket (50), the buffer cup (40) is connected to the adjusting slider (501) via a fixing rod, and the adjusting slider (501) can move in a vertical direction.

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