Preparation device and preparation process of hydrophobic nano coating solution

Abstract

The invention discloses a preparation device and a preparation process of a hydrophobic nano coating solution, the preparation device comprises an evaporation device, the evaporation device is used for preparing tetrahydrofuran, a feeding device is arranged on the evaporation device, a mixing device is arranged on the feeding device, the feeding device is used for feeding tetrahydrofuran into the mixing device, and the mixing device is used for mixing the tetrahydrofuran with the tetrahydrofuran. The mixing device is used for preparing the hydrophobic nano-coating solution. According to the invention, the evaporation device realizes automatic preparation of a solvent, the feeding device can automatically and continuously feed tetrahydrofuran into the mixing device, so that polymethyl methacrylate and polystyrene are mixed with tetrahydrofuran, and a plurality of groups of one-way mechanisms are arranged, so that the pressure in the temporary storage tank and the pressure in the mixing tank are kept balanced; the mixing device can achieve mixing of raw materials and solvents, meanwhile, in the mixing process, the mixing tank is kept closed, after the solution tank is inserted into the liquid outlet pipe, a solution in the mixing tank can be taken out, and the solution taking is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of nano coating preparation, and in particular to a preparation device and a preparation process of a hydrophobic nano coating solution. Background Art

[0002] Nano coating is an advanced non-toxic coating process. This coating is not only non-toxic and harmless, but also can change the surface properties of objects and can add different functions for different fields of use. Hydrophobic nano coating has the ability to repel hundreds of liquids. After this coating is attached to an object, it can greatly increase the tilt contact angle of the liquid, thereby reducing the amount of liquid stagnation on the surface. The preparation process of nano coating solution involves selecting suitable nano materials, solvents, surface modifiers and other auxiliary components, dispersing nano particles, and using appropriate coating methods to apply them to the surface of the substrate. The performance of the coating is closely related to the selection, dispersibility and coating process of the nano particles. The choice of solvent depends on the solubility of the nano particles and the application of the prepared coating. The preparation device of the hydrophobic nano coating solution in the prior art cannot realize the preparation of the solvent, and cannot automatically mix the solvent with the coating raw material, and it is not convenient to take out the prepared solution. Summary of the invention

[0003] In order to solve the deficiencies in the prior art, the present invention provides a device and a process for preparing a hydrophobic nano coating solution.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] A device for preparing a hydrophobic nano coating solution comprises an evaporation device, the evaporation device comprises an evaporation tank, the evaporation device is used to prepare tetrahydrofuran, the evaporation device is provided with a feeding device, the feeding device comprises a temporary storage tank, the feeding device is provided with a mixing device, the mixing device comprises a mixing tank, the feeding device is used to feed tetrahydrofuran into the mixing device, and the mixing device is used to prepare the hydrophobic nano coating solution.

[0006] Preferably, the evaporation device includes an alcohol burner arranged below the evaporation tank, the evaporation tank is filled with sulfuric acid, a steam outlet pipe is fixedly installed on the evaporation tank, a condenser is wrapped around the outside of the steam outlet pipe, the condenser is connected to an external water source and is used to cool the gas in the steam outlet pipe, a thermometer is inserted in the evaporation tank, and the steam outlet pipe is connected to the temporary storage tank.

[0007] Preferably, a feed tank is fixedly mounted on the evaporator, a switch knob is rotatably mounted on the feed tank, a discharge pool is fixedly mounted on the switch knob, a cover is provided on the discharge pool, a semicircular baffle is provided at the bottom of the switch knob, a semicircular baffle is provided at the upper end of the feed tank, and 1,4-butanediol liquid is contained in the discharge pool.

[0008] By turning the switch knob, the speed at which the 1,4-butanediol liquid in the discharge pool enters the evaporation tank can be controlled through the switch knob and the semicircular baffle of the feed tank. The 1,4-butanediol liquid in the evaporation tank is heated by an alcohol blowtorch, and sulfuric acid is used as a catalyst to obtain tetrahydrofuran gas, which then enters the steam outlet pipe. The tetrahydrofuran in the steam outlet pipe is cooled by a condenser, and finally the tetrahydrofuran enters the temporary storage tank.

[0009] Preferably, the feeding device includes a balancing pipe and an ejection pipe fixedly mounted on the temporary storage tank, the ejection pipe is connected to the mixing tank, the balancing pipe and the ejection pipe are fixedly mounted, the horizontal section of the ejection pipe is provided with an internal thread, a threaded pushing column is installed in the horizontal section of the ejection pipe through threaded rotation, the threaded pushing column and the ejection pipe form a threaded transmission, and a pushing gear is fixedly mounted on the threaded pushing column.

[0010] Preferably, the temporary storage tank is fixedly mounted with a bottom plate, a motor is fixedly mounted on the bottom plate, a motor gear is fixedly mounted on the motor shaft of the motor, a gear shaft is rotatably mounted on the bottom plate, an output gear, a front gear, a rear gear and a side bevel gear are fixedly mounted on the gear shaft, a lower bevel gear is rotatably mounted on the bottom plate, a vertical gear shaft and an upper transmission wheel are fixedly mounted on the lower bevel gear, the vertical gear shaft is meshed with the side bevel gear, and the output gear is meshed with the motor gear.

[0011] Preferably, a gear column is rotatably installed on the base plate, the gear column is meshed with the push gear, a sliding frame is slidably installed on the base plate, a pushing frame is fixedly installed on the sliding frame, a front transmission gear is rotatably installed on the sliding frame, a forward gear is fixedly installed on the front transmission gear, the front transmission gear is meshed with the front gear, the forward gear is meshed with the gear column, a rear transmission gear and an inner gear ring are rotatably installed on the sliding frame, an inner gear is fixedly installed on the rear transmission gear, a reverse gear is fixedly installed on the inner gear ring, the reverse gear is meshed with the gear column, three front planetary gears are rotatably installed on the sliding frame, rear planetary gears are fixedly installed on the front planetary gears, the rear planetary gears are meshed with the inner gear ring, and the front planetary gears are meshed with the inner gear.

[0012] Preferably, a triangular clamping block is slidably mounted on the bottom plate, and a clamping block spring is provided between the triangular clamping block and the bottom plate.

[0013] Preferably, a one-way mechanism is respectively provided in the balance tube and the push-out tube, and the one-way mechanism includes an inner empty frame, on which a one-way column plate is slidably installed, and a one-way spring is provided between the inner empty frame and the one-way column plate, the inner empty frame in the balance tube is fixedly installed on the inner wall of the balance tube, and the inner empty frame in the push-out tube is fixedly installed on the inner wall of the push-out tube.

[0014] The rotation of the motor drives the motor gear to rotate, thereby driving the output gear to rotate, thereby driving the gear shaft, front gear, rear gear and side bevel gear to rotate. The rotation of the side bevel gear drives the vertical gear shaft, lower bevel gear and upper transmission wheel to rotate. The rotation of the front gear drives the front transmission gear and the forward gear to rotate, thereby driving the gear column to rotate. The gear column drives the push gear and the threaded push column to rotate. The threaded push column moves outward at this time, and the one-way column plate in the balance tube moves downward to balance the air pressure in the temporary storage tank, while the one-way column plate in the push tube does not move. When the push gear contacts the right end of the push frame, the push gear pushes the push frame to move right, thereby driving the sliding frame to move right. The push frame will pass the top of the triangular block and reach the right side of the triangular block. With the rebound of the block spring, the front transmission gear is disengaged from the front gear, and the rear transmission gear begins to mesh with the rear gear. At this time, the rotation of the front gear begins to drive the rear transmission gear and The internal gear rotates, thereby driving the front planetary gear and the rear planetary gear to rotate, thereby driving the internal gear ring and the reverse gear to rotate. At this time, the rotation direction of the reverse gear is opposite to that of the forward gear, and begins to drive the gear column to rotate in the opposite direction, thereby driving the push gear and the threaded push column to start moving into the push tube, and the tetrahydrofuran liquid in the temporary storage tank is pushed by the threaded push column. The one-way column plate in the push tube slides relative to the inner empty frame, and the one-way spring is compressed, and the tetrahydrofuran liquid is pushed into the mixing tank through the threaded push column. When the push gear moves to contact the left side of the push frame, the push gear pushes the push frame to move to the left, so that the push frame passes the top of the triangular block and reaches the left side of the triangular block. With the rebound of the reverse gear, the rear transmission gear is disengaged from the rear gear, and the front transmission gear begins to engage with the front gear. At this time, the threaded push column and the push gear begin to move outward, and so on.

[0015] Preferably, the mixing device includes an upper tube fixedly mounted on a mixing tank, the upper tube being connected to a temporary storage tank, a one-way mechanism being arranged inside the upper tube, a one-way column plate of the one-way mechanism being fixedly mounted on an inner wall of the upper tube, a mixing shaft being rotatably mounted inside the mixing tank, a mixing wheel being fixedly mounted on the mixing shaft, a transmission belt being wound around the mixing wheel and an upper transmission wheel, and a liquid outlet pipe being fixedly mounted at the bottom of the mixing tank.

[0016] Preferably, a closing plate is slidably installed in the mixing tank, a liquid outlet hole is arranged on the closing plate, an extrusion spring is arranged between the closing plate and the mixing tank, a pressure rod is slidably installed on the side of the mixing tank, when the solution needs to be taken out, the solution tank is inserted into the liquid outlet pipe, a bracket is fixedly installed on the solution tank, a one-way mechanism is arranged in the solution tank, and the one-way column plate of the one-way mechanism is fixedly installed on the solution tank.

[0017] The mixing tank is filled with a fixed amount of polymethyl methacrylate and polystyrene. The upper transmission wheel drives the mixing wheel and the mixing shaft to rotate through the transmission belt to mix and stir the polymethyl methacrylate, polystyrene and tetrahydrofuran entering the mixing tank. The one-way mechanism in the upper tube is used to balance the air pressure of the mixing tank and the temporary storage tank. In the initial state, the closing plate is located below the liquid outlet of the mixing tank. When the solution in the mixing tank needs to be taken into the solution tank, the solution tank is inserted into the liquid outlet pipe. At this time, the solution tank is inverted, and the bracket at the bottom thereof will push the closing plate so that the liquid outlet hole reaches the liquid outlet of the mixing tank. The extrusion spring is compressed, and the solution in the mixing tank flows out. The solution in the mixing tank is squeezed out by pressing the pressure rod. The one-way mechanism on the solution tank allows the solution to only enter the solution tank from the liquid outlet pipe, but cannot flow out of the solution tank to the liquid outlet pipe.

[0018] A preparation process of a hydrophobic nano coating solution comprises the following steps: (1) heating 1,4-butanediol solution in sulfuric acid to obtain tetrahydrofuran gas; (2) cooling the obtained tetrahydrofuran gas; (3) dissolving polymethyl methacrylate and polystyrene in the obtained tetrahydrofuran solvent to prepare a polymer solution; (4) dropping the polymer solution on a spin coater for spin coating to form a thin film; (5) standing the solution to allow the tetrahydrofuran solvent to evaporate; and (6) soaking the solution in cyclohexane for a certain period of time, taking it out and drying it naturally.

[0019] Compared with the prior art, the present invention has the following beneficial effects: (1) the evaporation device of the present invention can automatically generate tetrahydrofuran gas by heating and evaporating 1,4-butanediol liquid and using sulfuric acid as a catalyst, and then cool the tetrahydrofuran gas to obtain tetrahydrofuran liquid, thereby realizing automatic preparation of the solvent; (2) the feeding device of the present invention can automatically and continuously feed tetrahydrofuran into the mixing device, so that polymethyl methacrylate and polystyrene are mixed with tetrahydrofuran, and by setting up multiple sets of one-way mechanisms, the pressure in the temporary storage tank and the mixing tank is kept balanced; (3) the mixing device provided in the present invention can achieve mixing of raw materials and solvents, and during the mixing process, the mixing tank remains closed, and when the solution tank is inserted into the liquid outlet pipe, the solution in the mixing tank can be taken out, and the liquid is conveniently taken out. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 The evaporation device of the present invention is schematically shown in FIG. Figure 1 ;

[0022] Figure 3 The evaporation device of the present invention is schematically shown in FIG. Figure 2 ;

[0023] Figure 4The structure of the feeding device of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 5 The structure of the feeding device of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 6 The structure of the feeding device of the present invention is shown in FIG. Figure 3 ;

[0026] Figure 7 The structure of the feeding device of the present invention is shown in FIG. Figure 4 ;

[0027] Figure 8 yes Figure 7 Schematic diagram of the local structure at A in the middle;

[0028] Fig. 9 The structure of the feeding device of the present invention is shown in FIG. Figure 5 ;

[0029] Fig.10 The structure of the mixing device of the present invention is shown in FIG. Figure 1 ;

[0030] Fig.11 The structure of the mixing device of the present invention is shown in FIG. Figure 2 ;

[0031] Fig.12 The structure of the mixing device of the present invention is shown in FIG. Figure 3 ;

[0032] Meaning of reference numerals: 101-evaporation tank; 102-alcohol burner; 103-steam outlet pipe; 104-condenser; 105-thermometer; 106-feeding tank; 107-switch knob; 108-discharging pool; 109-lid; 201-temporary storage tank; 202-balance pipe; 203-pushing pipe; 204-bottom plate; 205-motor; 206-motor gear; 207-pushing frame; 208-reverse gear; 209-gear shaft; 210-output gear; 211-front gear; 212-rear gear; 213-side bevel gear; 214-lower bevel gear; 215-vertical gear shaft; 216-upper transmission wheel; 217-triangular block; 218 -block spring; 219-front transmission gear; 220-forward gear; 221-tooth column; 222-inner gear ring; 223-threaded push column; 224-push gear; 225-rear transmission gear; 226-inner gear; 227-front planetary gear; 228-sliding frame; 229-rear planetary gear; 301-mixing tank; 302-upper pipe; 303-mixing wheel; 304-transmission belt; 305-liquid outlet pipe; 306-solution tank; 307-mixing shaft; 308-pressure rod; 309-closing plate; 310-extrusion spring; 311-liquid outlet hole; 312-bracket; 401-one-way column plate; 402-one-way spring; 403-inner empty frame. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0034] like Figures 1 to 12 As shown: a device for preparing a hydrophobic nano coating solution, comprising an evaporation device, the evaporation device comprising an evaporation tank 101, the evaporation device is used to prepare tetrahydrofuran, the evaporation device is provided with a feeding device, the feeding device comprises a temporary storage tank 201, the feeding device is provided with a mixing device, the mixing device comprises a mixing tank 301, the feeding device is used to feed tetrahydrofuran into the mixing device, and the mixing device is used to prepare a hydrophobic nano coating solution.

[0035] like Figure 2 , Figure 3 As shown, the evaporation device includes an alcohol burner 102 arranged below the evaporation tank 101. The evaporation tank 101 is filled with sulfuric acid. A steam outlet pipe 103 is fixedly installed on the evaporation tank 101. A condenser 104 is wound around the outside of the steam outlet pipe 103. The condenser 104 is connected to an external water source and is used to cool the gas in the steam outlet pipe 103. A thermometer 105 is inserted into the evaporation tank 101. The steam outlet pipe 103 is connected to the temporary storage tank 201.

[0036] like Figure 2 , Figure 3As shown, a feed tank 106 is fixedly mounted on the evaporator 101, a switch knob 107 is rotatably mounted on the feed tank 106, a discharge pool 108 is fixedly mounted on the switch knob 107, a cover 109 is provided on the discharge pool 108, a semicircular baffle is provided at the bottom of the switch knob 107, a semicircular baffle is provided at the upper end of the feed tank 106, and 1,4-butanediol liquid is contained in the discharge pool 108.

[0037] By turning the switch knob 107, the speed at which the 1,4-butanediol liquid in the discharge pool 108 enters the evaporation tank 101 can be controlled through the switch knob 107 and the semicircular baffle of the feed tank 106. The 1,4-butanediol liquid in the evaporation tank 101 is heated by the alcohol burner 102, and sulfuric acid is used as a catalyst to obtain tetrahydrofuran gas, which then enters the steam outlet pipe 103. The tetrahydrofuran in the steam outlet pipe 103 is cooled by the condenser 104, and finally the tetrahydrofuran enters the temporary storage tank 201.

[0038] like Figure 4-Figure 9 As shown, the feeding device includes a balance pipe 202 and an ejection pipe 203 fixedly mounted on the temporary storage tank 201, the ejection pipe 203 is connected to the mixing tank 301, the balance pipe 202 and the ejection pipe 203 are fixedly mounted, the horizontal section of the ejection pipe 203 is provided with an internal thread, a threaded pushing column 223 is installed in the horizontal section of the ejection pipe 203 through threaded rotation, the threaded pushing column 223 and the ejection pipe 203 form a threaded transmission, and a pushing gear 224 is fixedly mounted on the threaded pushing column 223.

[0039] like Figure 4-Figure 9 As shown, a bottom plate 204 is fixedly mounted on the temporary storage tank 201, a motor 205 is fixedly mounted on the bottom plate 204, a motor gear 206 is fixedly mounted on the motor shaft of the motor 205, a gear shaft 209 is rotatably mounted on the bottom plate 204, an output gear 210, a front gear 211, a rear gear 212 and a side bevel gear 213 are fixedly mounted on the gear shaft 209, a lower bevel gear 214 is rotatably mounted on the bottom plate 204, a vertical gear shaft 215 and an upper transmission wheel 216 are fixedly mounted on the lower bevel gear 214, the vertical gear shaft 215 is meshed with the side bevel gear 213, and the output gear 210 is meshed with the motor gear 206.

[0040] like Figure 4-Figure 9As shown, a tooth column 221 is rotatably mounted on the bottom plate 204, and the tooth column 221 meshes with the push gear 224. A sliding frame 228 is slidably mounted on the bottom plate 204, and a push frame 207 is fixedly mounted on the sliding frame 228. A front transmission gear 219 is rotatably mounted on the sliding frame 228, and a forward gear 220 is fixedly mounted on the front transmission gear 219. The front transmission gear 219 meshes with the front gear 211, and the forward gear 220 meshes with the tooth column 221. The sliding frame 228 is rotatably mounted on the bottom plate 204, and a push frame 207 is fixedly mounted on the sliding frame 228. A rear transmission gear 225 and an inner gear ring 222 are rotatably installed, an inner gear 226 is fixedly installed on the rear transmission gear 225, a reverse gear 208 is fixedly installed on the inner gear ring 222, and the reverse gear 208 is meshed with the gear column 221, three front planetary gears 227 are rotatably installed on the sliding frame 228, rear planetary gears 229 are fixedly installed on the front planetary gears 227, the rear planetary gears 229 are meshed with the inner gear ring 222, and the front planetary gears 227 are meshed with the inner gear 226.

[0041] like Figure 4-Figure 9 As shown, a triangular clamping block 217 is slidably mounted on the bottom plate 204 , and a clamping block spring 218 is provided between the triangular clamping block 217 and the bottom plate 204 .

[0042] like Figure 4-Figure 9 As shown, a one-way mechanism is respectively arranged in the balance tube 202 and the ejection tube 203, and the one-way mechanism includes an inner empty frame 403, on which a one-way column plate 401 is slidably installed, and a one-way spring 402 is arranged between the inner empty frame 403 and the one-way column plate 401, and the inner empty frame 403 in the balance tube 202 is fixedly installed on the inner wall of the balance tube 202, and the inner empty frame 403 in the ejection tube 203 is fixedly installed on the inner wall of the ejection tube 203.

[0043] The motor 205 rotates to drive the motor gear 206 to rotate, thereby driving the output gear 210 to rotate, thereby driving the gear shaft 209, the front gear 211, the rear gear 212 and the side bevel gear 213 to rotate, the side bevel gear 213 rotates to drive the vertical gear shaft 215, the lower bevel gear 214 and the upper transmission wheel 216 to rotate, the front gear 211 rotates to drive the front transmission gear 219 and the forward gear 220 to rotate, thereby driving the gear column 221 to rotate, the gear column 221 drives the push gear 224 and the threaded push column 223 to rotate, the threaded push column 223 moves outward at this time, and the one-way column in the balance pipe 202 rotates. The plate 401 moves downward to balance the air pressure in the temporary storage tank 201, while the one-way column plate 401 in the push tube 203 does not move. When the push gear 224 contacts the right end of the push frame 207, the push gear 224 pushes the push frame 207 to move rightward, thereby driving the sliding frame 228 to move rightward. The push frame 207 will pass the top of the triangular block 217 and reach the right side of the triangular block 217. With the rebound of the block spring 218, the front transmission gear 219 is disengaged from the front gear 211, and the rear transmission gear 225 starts to mesh with the rear gear 212. At this time, the front gear 211 rotates and starts to drive The rear transmission gear 225 and the inner gear 226 rotate, thereby driving the front planetary gear 227 and the rear planetary gear 229 to rotate, thereby driving the inner gear ring 222 and the reverse gear 208 to rotate. At this time, the rotation direction of the reverse gear 208 is opposite to that of the forward gear 220, and starts to drive the tooth column 221 to rotate in the opposite direction, thereby driving the push gear 224 and the threaded push column 223 to start moving into the push tube 203, and the tetrahydrofuran liquid in the temporary storage tank 201 is pushed by the threaded push column 223, and the one-way column plate 401 in the push tube 203 slides relative to the inner frame 403, and the one-way spring The spring 402 is compressed and the tetrahydrofuran liquid is pushed into the mixing tank 301 through the threaded pushing column 223. When the pushing gear 224 moves to contact the left side of the pushing frame 207, the pushing gear 224 pushes the pushing frame 207 to move to the left, so that the pushing frame 207 passes the top of the triangular block 217 and reaches the left side of the triangular block 217. With the rebound of the reverse gear 208, the rear transmission gear 225 is disengaged from the rear gear 212, and the front transmission gear 219 begins to engage with the front gear 211. At this time, the threaded pushing column 223 and the pushing gear 224 begin to move outward, and so on.

[0044] like Figure 10-12As shown, the mixing device includes an upper tube 302 fixedly mounted on a mixing tank 301, the upper tube 302 is connected to the temporary storage tank 201, a one-way mechanism is arranged in the upper tube 302, a one-way column plate 401 of the one-way mechanism is fixedly mounted on the inner wall of the upper tube 302, a mixing shaft 307 is rotatably mounted in the mixing tank 301, a mixing wheel 303 is fixedly mounted on the mixing shaft 307, a transmission belt 304 is wound around the mixing wheel 303 and the upper transmission wheel 216, and a liquid outlet pipe 305 is fixedly mounted at the bottom of the mixing tank 301.

[0045] like Figure 10-12 As shown, a closing plate 309 is slidably installed in the mixing tank 301, a liquid outlet 311 is arranged on the closing plate 309, an extrusion spring 310 is arranged between the closing plate 309 and the mixing tank 301, a pressure rod 308 is slidably installed on the side of the mixing tank 301, when the solution needs to be taken out, the solution tank 306 is inserted into the liquid outlet pipe 305, a bracket 312 is fixedly installed on the solution tank 306, a one-way mechanism is arranged in the solution tank 306, and a one-way column plate 401 of the one-way mechanism is fixedly installed on the solution tank 306.

[0046] like Figure 10-12 As shown, a certain amount of polymethyl methacrylate and polystyrene are contained in the mixing tank 301, and the upper transmission wheel 216 drives the mixing wheel 303 and the mixing shaft 307 to rotate through the transmission belt 304, so as to mix and stir the polymethyl methacrylate, polystyrene and tetrahydrofuran entering the mixing tank 301. The one-way mechanism in the upper pipe 302 is used to balance the air pressure of the mixing tank 301 and the temporary storage tank 201. In the initial state, the closing plate 309 is located below the liquid outlet of the mixing tank 301. When the solution in the mixing tank 301 needs to be taken to the solution tank 301, the closing plate 309 is located below the liquid outlet of the mixing tank 301. 6, the solution tank 306 is inserted into the liquid outlet pipe 305. At this time, the solution tank 306 is inverted, and the bracket 312 at the bottom thereof pushes the closing plate 309, so that the liquid outlet hole 311 reaches the liquid outlet of the mixing tank 301, the extrusion spring 310 is compressed, and the solution in the mixing tank 301 flows out. The solution in the mixing tank 301 is squeezed out by pressing the pressure rod 308. The one-way mechanism on the solution tank 306 allows the solution to only enter the solution tank 306 from the liquid outlet pipe 305, but cannot flow out of the solution tank 306 to the liquid outlet pipe 305.

[0047] A preparation process of a hydrophobic nano coating solution comprises the following steps: (1) heating 1,4-butanediol solution in sulfuric acid to obtain tetrahydrofuran gas; (2) cooling the obtained tetrahydrofuran gas; (3) dissolving polymethyl methacrylate and polystyrene in the obtained tetrahydrofuran solvent to prepare a polymer solution; (4) dropping the polymer solution on a spin coater for spin coating to form a thin film; (5) standing the solution to allow the tetrahydrofuran solvent to evaporate; and (6) soaking the solution in cyclohexane for a certain period of time, taking it out and drying it naturally.

[0048] Working principle: By turning the switch knob 107, the speed at which the 1,4-butanediol liquid in the discharge pool 108 enters the evaporation tank 101 can be controlled through the switch knob 107 and the semicircular baffle of the feed tank 106. The 1,4-butanediol liquid in the evaporation tank 101 is heated by the alcohol burner 102, and sulfuric acid is used as a catalyst to obtain tetrahydrofuran gas, which then enters the steam outlet pipe 103. The tetrahydrofuran in the steam outlet pipe 103 is cooled by the condenser 104, and finally the tetrahydrofuran enters the temporary storage tank 201. The motor 205 rotates to drive the motor gear 206 to rotate, thereby driving the output gear 210 to rotate, thereby driving the gear shaft 209, the front gear 211, the rear gear 212 and the side bevel gear 213 to rotate, the side bevel gear 213 rotates to drive the vertical gear shaft 215, the lower bevel gear 214 and the upper transmission wheel 216 to rotate, the front gear 211 rotates to drive the front transmission gear 219 and the forward gear 220 to rotate, thereby driving the gear column 221 to rotate, the gear column 221 drives the push gear 224 and the threaded push column 223 to rotate, the threaded push column 223 moves outward at this time, and the one-way column in the balance pipe 202 rotates. The plate 401 moves downward to balance the air pressure in the temporary storage tank 201, while the one-way column plate 401 in the push tube 203 does not move. When the push gear 224 contacts the right end of the push frame 207, the push gear 224 pushes the push frame 207 to move rightward, thereby driving the sliding frame 228 to move rightward. The push frame 207 will pass the top of the triangular block 217 and reach the right side of the triangular block 217. With the rebound of the block spring 218, the front transmission gear 219 is disengaged from the front gear 211, and the rear transmission gear 225 starts to mesh with the rear gear 212. At this time, the front gear 211 rotates and starts to drive The rear transmission gear 225 and the inner gear 226 rotate, thereby driving the front planetary gear 227 and the rear planetary gear 229 to rotate, thereby driving the inner gear ring 222 and the reverse gear 208 to rotate. At this time, the rotation direction of the reverse gear 208 is opposite to that of the forward gear 220, and starts to drive the tooth column 221 to rotate in the opposite direction, thereby driving the push gear 224 and the threaded push column 223 to start moving into the push tube 203, and the tetrahydrofuran liquid in the temporary storage tank 201 is pushed by the threaded push column 223, and the one-way column plate 401 in the push tube 203 slides relative to the inner frame 403, and the one-way spring The spring 402 is compressed and the tetrahydrofuran liquid is pushed into the mixing tank 301 through the threaded pushing column 223. When the pushing gear 224 moves to contact the left side of the pushing frame 207, the pushing gear 224 pushes the pushing frame 207 to move to the left, so that the pushing frame 207 passes the top of the triangular block 217 and reaches the left side of the triangular block 217. With the rebound of the reverse gear 208, the rear transmission gear 225 is disengaged from the rear gear 212, and the front transmission gear 219 begins to engage with the front gear 211. At this time, the threaded pushing column 223 and the pushing gear 224 begin to move outward, and so on.The mixing tank 301 contains a fixed amount of polymethyl methacrylate and polystyrene. The upper transmission wheel 216 drives the mixing wheel 303 and the mixing shaft 307 to rotate through the transmission belt 304 to mix and stir the polymethyl methacrylate, polystyrene and tetrahydrofuran entering the mixing tank 301. The one-way mechanism in the upper pipe 302 is used to balance the air pressure of the mixing tank 301 and the temporary storage tank 201. In the initial state, the closing plate 309 is located below the liquid outlet of the mixing tank 301. When it is necessary to take the solution in the mixing tank 301 to the solution tank 306, When the solution tank 306 is inserted into the liquid outlet pipe 305, the solution tank 306 is inverted, and the bracket 312 at the bottom thereof pushes the closing plate 309, so that the liquid outlet hole 311 reaches the liquid outlet of the mixing tank 301, and the extrusion spring 310 is compressed, and the solution in the mixing tank 301 flows out. The solution in the mixing tank 301 is squeezed out by pressing the pressure rod 308. The one-way mechanism on the solution tank 306 allows the solution to only enter the solution tank 306 from the liquid outlet pipe 305, but cannot flow out of the solution tank 306 to the liquid outlet pipe 305.

[0049] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A device for preparing a hydrophobic nano-coating solution, comprising an evaporation device, characterized in that: The evaporation device comprises an evaporation tank (101), the evaporation device is used to prepare tetrahydrofuran, the evaporation device is provided with a feeding device, the feeding device comprises a temporary storage tank (201), the feeding device is provided with a mixing device, the mixing device comprises a mixing tank (301), the feeding device is used to feed tetrahydrofuran into the mixing device, and the mixing device is used to prepare a hydrophobic nano coating solution.

2. The device for preparing a hydrophobic nano coating solution according to claim 1, characterized in that: The evaporation device comprises an alcohol burner (102) arranged below an evaporation tank (101). The evaporation tank (101) is filled with sulfuric acid. A steam outlet pipe (103) is fixedly mounted on the evaporation tank (101). A condenser (104) is wound around the outside of the steam outlet pipe (103). The condenser (104) is connected to an external water source and is used to cool the gas in the steam outlet pipe (103). A thermometer (105) is inserted into the evaporation tank (101). The steam outlet pipe (103) is connected to a temporary storage tank (201).

3. The device for preparing a hydrophobic nano coating solution according to claim 2, characterized in that: The evaporation tank (101) is fixedly mounted with a feed tank (106), a switch knob (107) is rotatably mounted on the feed tank (106), a discharge pool (108) is fixedly mounted on the switch knob (107), a cover (109) is provided on the discharge pool (108), a semicircular baffle is provided at the bottom of the switch knob (107), a semicircular baffle is provided at the upper end of the feed tank (106), and 1,4-butanediol liquid is contained in the discharge pool (108).

4. The device for preparing a hydrophobic nano coating solution according to claim 1, characterized in that: The feeding device comprises a balance pipe (202) and an ejection pipe (203) fixedly mounted on the temporary storage tank (201); the ejection pipe (203) is connected to the mixing tank (301); the balance pipe (202) and the ejection pipe (203) are fixedly mounted; the horizontal section of the ejection pipe (203) is provided with an internal thread; a threaded ejection column (223) is installed in the horizontal section of the ejection pipe (203) through threaded rotation; the threaded ejection column (223) and the ejection pipe (203) form a threaded transmission; a ejection gear (224) is fixedly mounted on the threaded ejection column (223).

5. The device for preparing a hydrophobic nano coating solution according to claim 4, characterized in that: A bottom plate (204) is fixedly mounted on the temporary storage tank (201), a motor (205) is fixedly mounted on the bottom plate (204), a motor gear (206) is fixedly mounted on the motor shaft of the motor (205), a gear shaft (209) is rotatably mounted on the bottom plate (204), an output gear (210), a front gear (211), a rear gear (212) and a side bevel gear (213) are fixedly mounted on the gear shaft (209), a lower bevel gear (214) is rotatably mounted on the bottom plate (204), a vertical gear shaft (215) and an upper transmission wheel (216) are fixedly mounted on the lower bevel gear (214), the vertical gear shaft (215) is meshed with the side bevel gear (213), and the output gear (210) is meshed with the motor gear (206).

6. The device for preparing a hydrophobic nano coating solution according to claim 5, characterized in that: A tooth column (221) is rotatably mounted on the bottom plate (204), the tooth column (221) meshes with the push gear (224), a sliding frame (228) is slidably mounted on the bottom plate (204), a pushing frame (207) is fixedly mounted on the sliding frame (228), a front transmission gear (219) is rotatably mounted on the sliding frame (228), a forward gear (220) is fixedly mounted on the front transmission gear (219), the front transmission gear (219) meshes with the front gear (211), the forward gear (220) meshes with the tooth column (221), a rear transmission gear (225) and an inner gear ring (222) are rotatably mounted on the sliding frame (228), and the rear transmission gear (225) and an inner gear ring (222) are rotatably mounted on the sliding frame (228). An internal gear (226) is fixedly mounted on the gear (225), a reverse gear (208) is fixedly mounted on the inner gear ring (222), the reverse gear (208) is meshed with the tooth column (221), three front planetary gears (227) are rotatably mounted on the sliding frame (228), rear planetary gears (229) are fixedly mounted on the front planetary gears (227), the rear planetary gears (229) are meshed with the inner gear ring (222), the front planetary gears (227) are meshed with the internal gear (226), a triangular clamping block (217) is slidably mounted on the bottom plate (204), and a clamping block spring (218) is provided between the triangular clamping block (217) and the bottom plate (204).

7. The device for preparing a hydrophobic nano coating solution according to claim 5, characterized in that: A one-way mechanism is respectively arranged in the balance tube (202) and the push tube (203), and the one-way mechanism comprises an inner hollow frame (403), a one-way column plate (401) is slidably mounted on the inner hollow frame (403), a one-way spring (402) is arranged between the inner hollow frame (403) and the one-way column plate (401), the inner hollow frame (403) in the balance tube (202) is fixedly mounted on the inner wall of the balance tube (202), and the inner hollow frame (403) in the push tube (203) is fixedly mounted on the inner wall of the push tube (203).

8. The device for preparing a hydrophobic nano coating solution according to claim 7, characterized in that: The mixing device comprises an upper tube (302) fixedly mounted on a mixing tank (301), the upper tube (302) being connected to a temporary storage tank (201), a one-way mechanism being arranged in the upper tube (302), a one-way column plate (401) of the one-way mechanism being fixedly mounted on the inner wall of the upper tube (302), a mixing shaft (307) being rotatably mounted in the mixing tank (301), a mixing wheel (303) being fixedly mounted on the mixing shaft (307), a transmission belt (304) being wound around the mixing wheel (303) and an upper transmission wheel (216), and a liquid outlet pipe (305) being fixedly mounted at the bottom of the mixing tank (301).

9. The device for preparing a hydrophobic nano coating solution according to claim 8, characterized in that: A closing plate (309) is slidably mounted in the mixing tank (301), a liquid outlet hole (311) is provided on the closing plate (309), a compression spring (310) is provided between the closing plate (309) and the mixing tank (301), a pressure rod (308) is slidably mounted on the side of the mixing tank (301), when it is necessary to take out the solution, the solution tank (306) is inserted into the liquid outlet pipe (305), a bracket (312) is fixedly mounted on the solution tank (306), a one-way mechanism is provided in the solution tank (306), and a one-way column plate (401) of the one-way mechanism is fixedly mounted on the solution tank (306).

10. A process for preparing a hydrophobic nano coating solution, characterized in that: The steps are as follows: (1) heating 1,4-butanediol solution in sulfuric acid to obtain tetrahydrofuran gas; (2) cooling the obtained tetrahydrofuran gas; (3) dissolving polymethyl methacrylate and polystyrene in the obtained tetrahydrofuran solvent to prepare a polymer solution; (4) dropping the polymer solution on a spin coater for spin coating to form a thin film; (5) standing to allow the tetrahydrofuran solvent to evaporate; (6) soaking it in cyclohexane for a certain period of time, taking it out and drying it naturally.

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