CN114836071A - Reflective nano ceramic-based heat insulation film and film preparation process thereof - Google Patents
Reflective nano ceramic-based heat insulation film and film preparation process thereof Download PDFInfo
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- CN114836071A CN114836071A CN202210647003.9A CN202210647003A CN114836071A CN 114836071 A CN114836071 A CN 114836071A CN 202210647003 A CN202210647003 A CN 202210647003A CN 114836071 A CN114836071 A CN 114836071A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/004—Reflecting paints; Signal paints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/90—Spray booths comprising conveying means for moving objects or other work to be sprayed in and out of the booth, e.g. through the booth
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/48—Stabilisers against degradation by oxygen, light or heat
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/90—Passive houses; Double facade technology
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Abstract
The invention relates to the technical field of heat insulation film preparation, and discloses a film preparation process based on a reflection type nano ceramic heat insulation film. The invention takes organic silicon resin, titanium dioxide powder, ultraviolet absorbent, ceramic powder and the like as raw materials to carry out mixing reaction. The invention also discloses a reflective nano ceramic-based heat insulation film and a spraying device. The selected titanium dioxide has higher refractive index, so that the light scattering capacity of the nano ceramic heat insulation film is improved, and the transparency and the heat insulation performance of the coating are improved. 2-hydroxy-4-n-octoxy benzophenone and 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole are used as ultraviolet absorbers, so that the purpose of blocking ultraviolet rays is achieved. The nano ceramic powder has the size of nano magnitude and has the advantages of good chemical stability and strong heat resistance.
Description
Technical Field
The invention relates to the technical field of heat insulation films, in particular to a reflection-type nano ceramic-based heat insulation film and a film preparation process thereof.
Background
With the use of a large number of heat insulation films for automobiles, buildings and the like, the application of the heat insulation films is very common, and the market demand is strong. However, the existing heat insulation film preparation process has the problems of insufficient productivity, serious pollution and the like, and deviates from the market demand scale.
Wherein, the ceramic membrane has light weight, high strength, high hardness, high temperature resistance and corrosion resistance. The heat insulation film prepared from the nano ceramic has high visible light transmittance. Meanwhile, the material can provide high reflection of infrared rays and far infrared rays, and is widely used in the fields of buildings, automobiles and the like as an energy-saving material. The heat insulation function of the heat insulation film is mainly attributed to the functional filler. The higher the refractive index of the filler, the stronger the reflected light performance. Common infrared reflective materials include organic pigments, metal compounds, doped metal compounds, and the like.
The prior art studies on a film formation process based on a reflective nano-ceramic heat insulating film are as follows. Chinese patent CN 104029454B discloses a method for preparing a high-temperature nano reflective heat-insulating film. The nanometer reflective coating is sprayed on the surface of the substrate film, and the surface of the substrate film is adhered with materials such as ceramics. So that the formed membrane material has the advantages of high tensile strength, easy bending and the like. The nano coating mainly comprises silicon carbide, zirconium oxide or zirconium silicate and the like. However, the infrared reflection performance of general metal oxides is inferior to that of metal oxides in which nano metal oxides and resins are mixed. For another example, chinese patent CN 101565581B discloses a reflective insulation coating and a method for making the same. The reflective nano ceramic heat insulation coating is prepared by taking water-based pure acrylic resin, infrared powder, water-based elastic resin, titanium dioxide, ceramic hollow microspheres and the like as reflective nano ceramic heat insulation coatings, so that a vacuum layer formed by the fine hollow microspheres in a coating in a close multistage arrangement mode has extremely strong reflection and barrier effects on solar radiation heat.
However, the reflective nano ceramic heat insulation film in the prior art mainly aims at infrared reflection and cannot effectively eliminate the harm brought by ultraviolet radiation. In addition, the substrate needs to be subjected to a cleaning pretreatment before spraying. The prior art realizes the cleaning of the base material by naturally airing after the punching, thus leading to low efficiency of the base material pretreatment.
Disclosure of Invention
In order to solve the problems, the invention provides a film preparation process based on a reflective nano ceramic heat insulation film, which comprises the following steps:
preparing a reflective nano ceramic heat insulation coating; the raw materials for preparing the reflection-type nano ceramic heat-insulating coating comprise organic silicon resin, titanium dioxide powder, ethanol, deionized water, a dispersing agent, a flatting agent, a defoaming agent, n-butyl alcohol, 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole, 2-hydroxy-4-n-octoxy benzophenone, nano ceramic powder and a curing agent;
spraying the reflection type nano ceramic heat insulation coating on the substrate subjected to washing and vibration drying treatment, and drying after spraying to obtain a reflection type nano ceramic heat insulation film;
and spraying the reflection type nano ceramic heat insulation coating on the substrate subjected to washing and vibration drying treatment, and drying after spraying to obtain the reflection type nano ceramic heat insulation film.
Preferably, the substrate comprises one of a PVC film, a PP film, a PE film.
Preferably, the reflective nano ceramic thermal insulation coating is uniformly sprayed on the PVC film, and the spraying amount is 20-30g/m 2 。
Preferably, the mass ratio of the organic silicon resin to the titanium dioxide powder to the curing agent is 45-55:7-8:30:8:1-1.2:1-1.2:1-1.2:9-10:3-4:3-4:13-25: 1.6-1.9.
Preferably, the leveling agent comprises BYK-333; the defoaming agent comprises 2,4,7, 9-tetramethyl-5-decyne-4, 7-diol; the curing agent comprises polyamide 651; the dispersant comprises dispersant NNO.
Preferably, the substrate comprises a PVC film; after the reflective nano ceramic heat insulation coating is sprayed on the PVC film, the PVC film is dried for 1-2 hours at the temperature of 60-70 ℃, and then the reflective nano ceramic heat insulation film is obtained.
Preferably; comprises a grounding component, a substrate suspension group and a spraying chamber;
the spraying comprises the following steps: when the grounding assembly and the substrate suspension group drive the substrate subjected to vibration treatment to enter a spraying area in the spraying chamber, the grounding assembly is electrically connected with the substrate suspension group, the surface of the substrate is sprayed with the reflective nano ceramic heat-insulating coating, the substrate is electrically connected with the spraying area, and the substrate is automatically disconnected from the spraying area when the substrate is separated from the spraying area.
Preferably, the PVC film, the PP film and the PE film are respectively a conductive PVC film, a conductive PP film and a conductive PE film.
The invention also discloses a reflective nano-ceramic-based heat insulation film prepared by the film preparation process based on the reflective nano-ceramic heat insulation film.
The invention also discloses a spraying device which comprises a spraying chamber, wherein a drying area is arranged in the spraying chamber, a plurality of instantaneous impact components are arranged in the drying area, and when the base material hanging group moves in the drying area of the spraying chamber along with a production line conveying chain, the instantaneous impact components are driven to accumulate force and then impact on the base material hanging group so as to be used for generating vibration by the base material hanging group and transmitting the vibration to the base material; the substrate is dried in a vibrating state.
Preferably, a spraying area is also arranged in the spraying chamber and is used for spraying the base material subjected to vibration drying treatment; a production line conveying chain is arranged above the spraying chamber, a grounding component is in sliding fit with the upper surface of the spraying chamber along the movement direction of the production line conveying chain through a guide component and is connected with a ground wire through the guide component, the grounding component is connected with a substrate suspension group so that the production line conveying chain drives the substrate suspension group to move along the movement direction of the production line conveying chain through the grounding component and the guide component, and the substrate suspension group is used for arranging a substrate;
when the grounding assembly and the substrate suspension group drive the substrate to enter the spraying area in the spraying chamber, the grounding assembly is electrically connected with the substrate suspension group and keeps electrically connected with the substrate to be separated from the spraying area, and when the substrate is separated from the spraying area, the electrical connection between the grounding assembly and the substrate suspension group is automatically disconnected.
Preferably, a plurality of instantaneous impact components are arranged in the spraying chamber, and when the substrate suspension group moves in the spraying chamber along with a production line conveying chain, the instantaneous impact components are driven to accumulate force and strike on the substrate suspension group, so that the substrate suspension group generates vibration and transmits the vibration to the substrate.
Preferably, the grounding assembly comprises an insulating grounding seat and a track arranged on the upper surface of the spraying chamber, the insulating grounding seat is matched with the track, the insulating grounding seat is provided with a cavity, trigger wedges are arranged on two sides of the lower surface of the insulating grounding seat, one end of each trigger wedge is located in the cavity and fixedly mounted on the trigger base, and the other end of each trigger wedge is arranged in a tangent mode with the track;
a grounding probe is fixedly installed on the trigger base, one end of the base material suspension group extends into the cavity and is fixedly installed on the surface of the cavity, and the grounding probe and the base material suspension group are in sliding fit along the central axis direction of the grounding probe;
when the insulating ground seat slides along the track to the substrate enters the spraying area, the trigger wedge block is hidden in the insulating ground seat to be used for driving the trigger base to drive the grounding probe and the guide assembly to be electrically connected, and when the substrate is separated from the spraying area, the grounding probe automatically resets to enable the trigger wedge block to be unhidden and drive the grounding probe to be electrically connected with the guide assembly.
Preferably, the rail comprises a guide groove, release grooves are symmetrically formed in the bottoms of the two ends of the guide groove, and a depth difference exists between the guide groove and the release grooves, so that when the trigger wedge is tangent to the release grooves, the trigger wedge is in a release state; when the trigger wedge block is tangent to the guide groove, the trigger wedge block is in a hidden state.
Preferably, the guide assembly comprises a guide base, the guide base is fixedly mounted on the insulating grounding seat, a T-shaped conductive block is fixedly mounted in the guide base, two symmetrical ends of the T-shaped conductive block are tangentially provided with guide wheels, and the other end of the T-shaped conductive block extends into a cavity of the insulating grounding seat to be electrically connected with the grounding probe;
the guide wheels are rotatably installed in the middle of two ends of the guide base and are tangentially connected with guide rods, the guide rods and the production line conveying chain are correspondingly distributed, and the guide base is arranged on the production line conveying chain through mounting columns, so that the guide base moves along with the production line conveying chain under the guidance of the track of the guide rods;
and the guide rod is connected with the ground wire.
Preferably, the base material suspension group comprises a suspension column, a through groove is formed in the middle of the lower surface of the guide groove, the through groove is used for providing a movement channel for the suspension column, and one end, far away from the base material, of the suspension column extends into the cavity of the insulation grounding seat and is fixedly installed in the cavity of the insulation grounding seat;
the grounding probe is characterized in that an embedded hole is formed in one end of the suspension column, a spring is fixedly mounted at the bottom of the embedded hole, one end of the spring is fixedly mounted at the bottom of the grounding probe, and one end, connected with the spring, of the grounding probe is always located in the embedded hole and is in sliding fit with the embedded hole.
Preferably, one end of the suspension column close to the base material is fixedly provided with a suspension seat; the suspension seat comprises a suspension base, a suspension table is arranged on the lower surface of the suspension base, the suspension table is in sliding fit with the suspension base along the motion direction of the base material, and the suspension table is used for installing the base material and promoting the instant impact component to accumulate force and impact on the suspension table.
Preferably, the inner wall sliding fit of suspension base has spring base, the equal fixed mounting in both sides of spring base has vibrating spring, vibrating spring's one end fixed mounting is on suspension base's inner wall, just spring base's middle part with hang a platform fixed connection.
Preferably, the suspension table comprises an upper table plate, a lower table plate and a vibration column, the upper table plate is fixedly connected with the spring base, and two ends of the vibration column are respectively and fixedly installed on the upper table plate and the lower table plate;
and at least two oscillating columns are arranged, so that one oscillating column in any two adjacent oscillating columns is used for accumulating the force of the instantaneous impact component, and the other oscillating column is used for bearing the impact generated after the force of the instantaneous impact component is accumulated.
Preferably, the subassembly is hit in the twinkling of an eye includes the pillar, pillar fixed mounting be in the spray booth inner wall top, the center post is installed in the rotation of pillar, the one end fixed mounting of center post hits the piece, and the other end extends to the inside and fixed mounting of pillar have the torsion spring seat, one side fixed mounting of torsion spring seat has the torsional spring, just the one end fixed mounting of torsional spring is in on the inner wall of pillar.
Compared with the prior art, the heat-insulating film coating has the beneficial effects that:
the heat-insulating film coating is mixed with the nano ceramic powder, and a vacuum layer formed by the close multistage arrangement of the nano ceramic powder in the coating has extremely strong reflection and barrier effects on solar radiation heat, and can effectively reduce radiation heat transfer and convection heat transfer, thereby reducing the heat balance temperature of the surface of an object compared with the traditional ceramic material. Meanwhile, the nano ceramic powder has the advantages of high temperature resistance, good chemical stability, environmental protection, no pollution, low energy consumption and the like. And secondly, the titanium dioxide is a filler with high reflectivity, has higher refractive index, further exerts the synergistic effect of titanium dioxide particles and improves the light scattering capacity of the nano ceramic heat insulation film. In addition, 2-hydroxy-4-n-octoxybenzophenone and 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole are used as ultraviolet absorbers, can absorb ultraviolet radiation, and therefore achieve the purpose of blocking ultraviolet rays. The mixed paint is sprayed on a substrate to prepare the rice ceramic heat insulation film with excellent reflection.
According to the invention, the base material after being washed is dried in a vibration drying mode, so that the washing liquid such as deionized water can be separated from the surface of the base material in a vibration state as soon as possible, and the drying effect is improved.
When a conductive substrate (conductive film) is sprayed and enters a spraying area, the substrate is grounded to generate positive charges, and the coating with the negative charges (the reflective nano ceramic heat insulation coating of the invention) is attracted with the substrate, so that the coating is attracted with the surface of the substrate, and the coating is attached to the surface of the substrate.
The grounding conditions of the base material before, during and after spraying are controlled, so that positive charges are prevented from being generated on the surface of the base material in a space outside a spraying area, and the problem that the surface cleanliness of the base material is influenced by the fact that the base material adsorbs interference particles with negative charges (such as dust) in an atmospheric environment due to the phenomenon of opposite attraction between the base material and the interference particles with negative charges is avoided.
Drawings
FIG. 1 is a flow chart of a process for preparing a reflective nano-ceramic thermal insulation coating according to the present invention;
FIG. 2 is a process for preparing a reflective nano-ceramic-based thermal insulation film by coating spraying according to the present invention;
FIG. 3 is a histogram of the near infrared reflectance of a reflective nanoceramic thermal barrier film in accordance with the present invention;
FIG. 4 is a bar graph of the UV absorbance of a reflective nanoceramic based thermal barrier film according to the present invention;
FIG. 5 is a perspective view of one embodiment of the present invention;
FIG. 6 is a second perspective view of the present invention;
FIG. 7 is a view of the grounding assembly, substrate suspension assembly and guide assembly installation configuration of the present invention;
FIG. 8 is a cross-sectional view of the grounding assembly, substrate suspension set and guide assembly mounting structure of the present invention;
FIG. 9 is a partial cross-sectional view of a substrate suspension assembly of the present invention;
fig. 10 is a cross-sectional view of an instant impact assembly of the present invention.
In the figure: 1. a spray chamber; 2. a production line conveying chain; 3. a ground component; 301. an insulated grounding base; 302. a track; 3021. a guide groove; 3022. a relief groove; 3023. a passage groove; 303. triggering a wedge block; 304. triggering the base; 305. a grounding probe; 4. a substrate suspension group; 401. a suspension post; 402. a built-in hole; 403. a spring; 404. a suspension seat; 4041. a suspension base; 4042. a spring base; 4043. a vibration spring; 405. a hanging table; 4051. an upper platen; 4052. a lower platen; 4053. oscillating the column; 5. a guide assembly; 501. a guide base; 502. a T-shaped conductive block; 503. a guide wheel; 504. a guide bar; 505. mounting a column; 6. a shock-in component; 601. a base pillar; 602. a central column; 603. striking a block; 604. a torsion spring seat; 605. a torsion spring; 9. an electrostatic coating gun.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The embodiment discloses a film preparation process based on a reflection-type nano ceramic heat insulation film, which comprises the following steps:
(1) adding organic silicon resin (CAS number: 67763-03-5), titanium dioxide powder, ethanol, deionized water, a dispersing agent NNO, BYK-333 (flatting agent), 2,4,7, 9-tetramethyl-5-decyne-4, 7-diol (defoaming agent), n-butyl alcohol, 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole, 2-hydroxy-4-n-octyloxy benzophenone, nano ceramic powder and polyamide 651 (curing agent) under magnetic stirring to obtain a reflective nano ceramic heat-insulating coating; the stirring time is 30min in total, and the stirring speed is 500 r/min. Wherein the organic silicon resin (CAS number: 67763-03-5), titanium dioxide powder, ethanol, deionized water, a dispersant NNO, BYK-333, 2,4,7, 9-tetramethyl-5-decyne-4, 7-diol, n-butanol, 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole, 2-hydroxy-4-n-octyloxy benzophenone, nano ceramic powder and polyamide 651 are mixed according to a mass ratio of 45:8:30:8:1:1: 10:4:4:25: 1.7.
(2) The reflective nano ceramic heat-insulating coating is uniformly sprayed on the PVC film, and the spraying amount is 30g/m 2 (ii) a After the spraying is finished, drying for 1h at 60 ℃; obtaining the heat insulation film based on the reflection type nano ceramic.
Example 2
The embodiment discloses a film preparation process based on a reflective nano ceramic heat insulation film, which comprises the following steps:
(1) adding organic silicon resin (CAS number: 67763-03-5), titanium dioxide powder, ethanol, deionized water, a dispersing agent NNO, BYK-333 (flatting agent), 2,4,7, 9-tetramethyl-5-decyne-4, 7-diol (defoaming agent), n-butyl alcohol, 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole, 2-hydroxy-4-n-octyloxy benzophenone, nano ceramic powder and polyamide 651 (curing agent) under magnetic stirring to obtain a reflective nano ceramic heat-insulating coating; the stirring time is 60min in total, and the stirring speed is 500 r/min. Wherein the organic silicon resin (CAS number: 67763-03-5), titanium dioxide powder, ethanol, deionized water, a dispersant NNO, BYK-333, 2,4,7, 9-tetramethyl-5-decyne-4, 7-diol, n-butanol, 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole, 2-hydroxy-4-n-octyloxy benzophenone, nano ceramic powder and polyamide 651 are mixed according to a mass ratio of 55:7:30:8:1.2:1.2: 9:3:3:13: 1.9.
(2) The reflective nano ceramic heat-insulating coating is uniformly sprayed on the PVC film, and the spraying amount is 20g/m 2 (ii) a After the spraying is finished, drying for 2 hours at 70 ℃; obtaining the heat insulation film based on the reflection type nano ceramic.
Example 3
The embodiment discloses a film preparation process based on a reflective nano ceramic heat insulation film, which comprises the following steps:
(1) adding organic silicon resin (CAS number: 67763-03-5), titanium dioxide powder, ethanol, deionized water, a dispersing agent NNO, BYK-333 (flatting agent), 2,4,7, 9-tetramethyl-5-decyne-4, 7-diol (defoaming agent), n-butyl alcohol, 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole, 2-hydroxy-4-n-octyloxy benzophenone, nano ceramic powder and polyamide 651 (curing agent) under magnetic stirring to obtain a reflective nano ceramic heat-insulating coating; the total stirring time is 45min, and the stirring speed is 500 r/min. Wherein the organic silicon resin (CAS number: 67763-03-5), titanium dioxide powder, ethanol, deionized water, a dispersant NNO, BYK-333, 2,4,7, 9-tetramethyl-5-decyne-4, 7-diol, n-butanol, 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole, 2-hydroxy-4-n-octyloxy benzophenone, nano ceramic powder and polyamide 651 are mixed according to a mass ratio of 50:7:30:8:1:1: 10:3.5:3.5:18: 1.8.
(2) The reflective nano ceramic heat-insulating coating is uniformly sprayed on the PVC film, and the spraying amount is 25g/m 2 (ii) a After the spraying is finished, drying for 1.5h at 65 ℃; obtaining the heat insulation film based on the reflection type nano ceramic.
Example 4
The embodiment discloses a film preparation process based on a reflective nano ceramic heat insulation film, which comprises the following steps:
(1) adding organic silicon resin (CAS number: 67763-03-5), titanium dioxide powder, ethanol, deionized water, a dispersing agent NNO, BYK-333 (flatting agent), 2,4,7, 9-tetramethyl-5-decyne-4, 7-diol (defoaming agent), n-butyl alcohol, 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole, 2-hydroxy-4-n-octyloxy benzophenone, nano ceramic powder and polyamide 651 (curing agent) under magnetic stirring to obtain a reflective nano ceramic heat-insulating coating; the stirring time is 35min in total, and the stirring speed is 500 r/min. Wherein the organic silicon resin (CAS number: 67763-03-5), titanium dioxide powder, ethanol, deionized water, a dispersant NNO, BYK-333, 2,4,7, 9-tetramethyl-5-decyne-4, 7-diol, n-butanol, 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole, 2-hydroxy-4-n-octyloxy benzophenone, nano ceramic powder and polyamide 651 are mixed according to a mass ratio of 52:7:30:8:1.1:1.1: 10:3.4:3.4:16: 1.9.
(2) The reflective nano ceramic heat-insulating coating is uniformly sprayed on the PVC film, and the spraying amount is 22g/m 2 (ii) a After the spraying is finished, drying for 1.3h at 62 ℃; obtaining the heat insulation film based on the reflection type nano ceramic.
Example 5
The embodiment discloses a film preparation process based on a reflective nano ceramic heat insulation film, which comprises the following steps:
(1) adding organic silicon resin (CAS number: 67763-03-5), titanium dioxide powder, ethanol, deionized water, a dispersing agent NNO, BYK-333 (flatting agent), 2,4,7, 9-tetramethyl-5-decyne-4, 7-diol (defoaming agent), n-butyl alcohol, 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole, 2-hydroxy-4-n-octyloxy benzophenone, nano ceramic powder and polyamide 651 (curing agent) under magnetic stirring to obtain a reflective nano ceramic heat-insulating coating; the stirring time is 55min in total, and the stirring speed is 500 r/min. Wherein the organic silicon resin (CAS number: 67763-03-5), titanium dioxide powder, ethanol, deionized water, a dispersant NNO, BYK-333, 2,4,7, 9-tetramethyl-5-decyne-4, 7-diol, n-butanol, 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole, 2-hydroxy-4-n-octyloxy benzophenone, nano ceramic powder and polyamide 651 are mixed according to a mass ratio of 47:7.5:30:8:1:1: 10:3.8:3.8:20: 1.6.
(2) The reflective nano ceramic heat-insulating coating is uniformly sprayed on the PVC film, and the spraying amount is 28g/m 2 (ii) a After the spraying is finished, drying for 1.8h at 68 ℃; obtaining the heat insulation film based on the reflection type nano ceramic.
Before the PVC film of each embodiment of the invention is sprayed, the PVC film is washed and vibrated and dried. The flushing liquid adopted for flushing the PVC film is deionized water. Referring to fig. 5-6, the washed PVC film is placed on the substrate suspension set 4, and the PVC film is subjected to a vibration drying process in a drying zone provided in the spray booth 1. Be provided with a plurality of instantaneous impact assemblies 6 in the dry zone of spray booth 1, substrate hangs group 4 along with producing line conveying chain 2 and being in when the interior dry zone of spray booth 1 removes, the drive hit after the power is held in instantaneous impact assemblies 6 and hit and hang group 4 on the substrate, so that the substrate hangs group 4 and produces vibrations to transmit this vibrations to the substrate (the substrate is the PVC membrane of this embodiment), realize that the substrate is dry when vibrations.
In each of the above examples and comparative examples of the present invention, one surface of the PVC film was coated by spraying.
Further, the base material after vibration drying can be taken out and then spread on a workbench for single-side spraying treatment.
Further, a heating device is arranged in the drying area, and the PVC film is dried through the heating device. The heating device is a prior art heater such as a resistance wire or other prior art heater.
Example 6
Referring to fig. 5-7, the present invention provides a spraying apparatus, including a spraying chamber 1, wherein a spraying area is present in the spraying chamber 1, a production line conveying chain 2 is disposed above the spraying chamber 1, a grounding component 3 is slidably fitted on an upper surface of the spraying chamber 1 along a movement direction of the production line conveying chain 2 through a guiding component 5, the grounding component 3 is connected with a ground wire through the guiding component 5, the grounding component 3 is connected with a substrate suspension group 4, so that the production line conveying chain 2 drives a substrate suspension group 4 to move along the movement direction of the production line conveying chain 2 through the grounding component 3 and the guiding component 5, and the substrate suspension group 4 is used for placing a substrate;
when the grounding component 3 and the substrate suspension group 4 drive the substrate to enter the spraying area in the spraying chamber 1, the grounding component 3 and the substrate suspension group 4 are electrically connected and keep electrically connected to the substrate separated from the spraying area, and when the substrate is separated from the spraying area, the electrical connection between the grounding component 3 and the substrate suspension group is automatically disconnected.
Wherein the in-line conveyor chain 2 is preferably a hanging conveyor chain.
Along with the operation of the production line conveying chain 2, the production line conveying chain 2 drives the grounding component 3 to move above the spraying chamber 1 through the guide component 5, so as to drive the substrate suspension group 4 to move horizontally along with the movement of the grounding component 3, when the substrate suspension group 4 enters the spraying chamber, the grounding component 3 is in sliding fit with the upper surface of the spraying chamber 1, and when the substrate suspension group 4 carries the substrate to enter a spraying area in the spraying chamber 1, the grounding component 3 is electrically connected with the substrate suspension group 4, because the grounding component 3 is always connected with the ground wire through the guide component 5, when the grounding component 3 is electrically connected with the substrate suspension group 4, the substrate suspension group 4 is connected with the ground wire through the grounding component and the guide component 5, so as to achieve the purpose of grounding the substrate, so that the substrate is in a grounding state in the spraying area, and the surface of the substrate generates positive charges, because the metal diversion cup on the spray gun head is connected with high-voltage negative electricity, a stronger electrostatic field is formed between the spray gun and the substrate, when the paint is sent to the diversion cup of the spray gun by carrier gas (compressed air), dense charges are generated around the metal diversion cup, the paint is charged with negative charges, so that the substrate adsorbs the droplet-shaped paint with the negative charges in a spraying area, the aim of spraying the paint is fulfilled, and when the substrate is separated from the spraying area along with the operation of the production line conveying chain 2, the electric connection between the grounding component 3 and the substrate suspension group 4 is disconnected. Thereby enabling the substrate to be grounded in a defined area.
The grounding conditions of the substrate before, during and after spraying are controlled to prevent the surface of the substrate from generating positive charges in a space outside a spraying area, so that the phenomenon that the substrate and interference particles (such as dust) with negative charges in an atmospheric environment generate opposite attraction is avoided, the surface of the substrate adsorbs the interference particles with the negative charges to influence the surface cleanliness of the substrate, the adsorption capacity of the surface cleanliness of the substrate on the coating is avoided, and the performance of the film is ensured.
In addition, the grounding of the base material is removed after the spraying, so that the base material is prevented from still having positive charges after the spraying, and the smoothness reduction of the surface of the base material caused by the adsorption of interference particles with negative charges on the surface of the coating in the atmospheric environment is avoided.
Further, referring to fig. 5 to 6, for the aforementioned spray booth 1, a plurality of impact components 6 are disposed in a dry area of the spray booth 1, and when the substrate suspension group 4 moves in the spray booth 1 along with the in-line conveyor chain 2, the impact components 6 are driven to impact on the substrate suspension group 4 after accumulating force, so that the substrate suspension group 4 generates vibration and transmits the vibration to the substrate.
The substrate suspension group 4 moves in a translation manner in the spraying chamber 1 along with the movement of the production line conveying chain 2, and in the movement process, the instantaneous impact component 6 is sequentially driven to accumulate force and the accumulated instantaneous impact component 6 is released to impact the substrate, so that the substrate suspension group 4 generates vibration in the movement process and transmits the vibration to the substrate.
Therefore, after the base material enters the drying area and before the base material is sprayed in the spraying area, the base material is vibrated to accelerate the falling of water on the surface of the base material after being washed, and the base material is dried in the drying area to achieve the purpose of quickly drying the base material so as to ensure the cleanliness of the surface of the base material.
When the spraying apparatus of the present embodiment is used for spraying in the step (2) of the film-forming process based on the reflective nano-ceramic heat-insulating film of each of the above embodiments, the PVC film used is a conventional conductive PVC film subjected to conductive modification; or a prior art conductive PP film is used instead of a PVC film.
The preparation method of the conductive PVC film comprises the following steps:
(1) roughening a PVC film with the thickness of 10 mu m in 60 ℃ alkali liquor for 50min, washing with deionized water and drying; wherein the alkali liquor comprises sodium hydroxide and ethylene glycol which are mixed according to the mass ratio of 8:2 to obtain a polymer film;
(2) and carrying out heat seal laser grain etching on the high polymer film to obtain the high polymer film subjected to heat seal laser grain etching. Wherein the laser power is 220kW, the laser beam width is 0.4 μm, the etching speed is 15mm/min, the etching depth is 5 μm, and the heat treatment temperature of the laser to the whole film is 180 ℃.
(3) Mixing ferrous chloride, ferrous sulfate and water to obtain a mixed solution (the concentration of ferrous ions is 10 mol/L). And (3) brushing the mixed solution in the lines obtained in the step (2), drying, and then soaking the polymer film into 0.5mol/L silver nitrate solution to cover the etched line surface of the polymer film with a conductive layer of 0.6 mu m to obtain the polymer film covered with the conductive layer.
(4) Carrying out graded electroplating on the conductive layer of the polymer film covered with the conductive layer, plating a metal copper layer with the thickness of 4 microns, and plating a copper-nickel-tin alloy layer with the thickness of 1 micron on the surface of the metal copper layer; wherein, in the copper-nickel-tin alloy layer, the mass of copper accounts for 65%, the mass of nickel accounts for 20%, and the mass of tin accounts for 15%; to obtain a multi-layer covered polymer film.
(5) Standing the multi-layer coated polymer film in the mixed treatment solution at 60 deg.C for 18 min. Wherein the mixed treatment liquid comprises stannous chloride, sodium citrate, ammonium chloride, potassium acetate, sodium benzenesulfonate and deionized water which are mixed according to the mass ratio of 1.5:21:6:3.5:2: 66; the mass ratio of the polymer film to the mixed treatment liquid is 1: 50; obtaining the treated polymer film.
(6) And carrying out continuous heat treatment on the treated polymer film in a nitrogen protective atmosphere. The heat treatment temperature is 500 ℃, the heat treatment speed is 0.6m/min, the nitrogen flow is 20L/h, the pressure is 0.5MPa, and the treatment time is 60 min.
The preparation method of the conductive PP film is the same as the above (conductive PVC film preparation method), except that the PVC film in the step (1) is replaced with a PP film.
The PVC film in the method of example 3 was replaced with a conductive PP film and a conductive PVC film, respectively, and sprayed on the surface of the outermost layer on the etched side of the film in an amount of 18g/m 2 And other process parameters are unchanged, and the reflection type nano ceramic heat insulation conductive PP film and the reflection type nano ceramic heat insulation conductive PVC film are respectively obtained.
The near infrared reflectivity of the reflective nano ceramic heat-insulating conductive PP film and the reflective nano ceramic heat-insulating conductive PVC film is respectively up to 70.71 percent and 70.89 percent; based on the reflective nano ceramic heat-insulating conductive PP film and the reflective nano ceramic heat-insulating conductive PVC film, the ultraviolet absorptivity is respectively 68.92% and 68.85%.
In some embodiments, the present invention may also be sprayed on the opposite side of the etched side of the film.
In some embodiments, the present invention may also be sprayed on both sides of the conductive film.
Further, referring to fig. 5 and fig. 7-8, for the grounding assembly 3, the grounding assembly 3 includes an insulating grounding base 301 and a rail 302 provided on the upper surface of the spray booth 1, and the insulating grounding base 301 is engaged with the rail 302, the insulating grounding base 301 has a cavity, and both sides of the lower surface of the insulating grounding base 301 are provided with trigger wedges 303, one end of each trigger wedge 303 is located in the cavity and is fixedly mounted on the trigger base 304, and the other end of each trigger wedge 303 is tangential to the rail 302;
a grounding probe 305 is fixedly installed on the trigger base 304, one end of the substrate suspension group 4 extends into the cavity and is fixedly installed on the surface of the cavity, and the grounding probe 305 and the substrate suspension group 4 are in sliding fit along the central axis direction of the grounding probe 305;
when the insulating ground seat 301 slides along the track 302 until the substrate enters the spraying area, the trigger wedge 303 is hidden in the insulating ground seat 301 to drive the trigger base 304 to drive the grounding probe 305 to be electrically connected with the guide assembly 5, and when the substrate is separated from the spraying area, the grounding probe 305 automatically resets to enable the trigger wedge 303 to be unhidden and drive the grounding probe 305 to be electrically disconnected with the guide assembly 5;
the insulating grounding seat 301 is fixedly installed on the production line conveying chain 2 through the guide component 5, the insulating grounding seat 301 is driven to move along with the movement of the production line conveying chain 2, when the insulating grounding seat 301 is matched with the track 302 on the upper surface of the spraying chamber 1, the substrate suspension group 4 drives the substrate to enter the spraying chamber 1 at the moment, the insulating grounding seat 301 is driven to move along with the production line conveying chain 2, the substrate suspension group 4 drives the substrate to gradually enter the spraying area, the trigger wedge block 303 is gradually hidden into the insulating grounding seat 301, along with the hidden movement of the trigger wedge block 303, the trigger wedge block 303 drives the trigger base 304 to drive the grounding probe 305 to move along the central axis direction of the grounding probe 305, so that the grounding probe 305 is contacted with the guide component 5 to realize the grounding of the grounding probe 305, and as the grounding probe, the substrate suspension group 4 is in sliding fit along the central axis direction of the grounding probe 305, namely, the substrate suspension group 4 is in contact with the grounding probe 305, so that the substrate suspension group 4 is connected with the ground wire, and the grounding of the substrate is realized;
when the substrate gradually leaves the spraying area, the trigger wedge 303 gradually exposes from the insulating grounding seat 301 and returns to the position when the substrate does not enter the spraying area, so that the trigger wedge 303 drives the trigger base 304 to drive the grounding probe 305 to move reversely along the central axis direction of the grounding probe 305, so as to disconnect the grounding of the grounding probe 305, and further disconnect the grounding of the substrate.
Further, referring to fig. 5 and 7, for the track 302, the track 302 includes a guide groove 3021, release grooves 3022 are symmetrically formed at the bottoms of two ends of the guide groove 3021, and a depth difference exists between the guide groove 3021 and the release grooves 3022, so that when the trigger wedge 303 is tangent to the release grooves 3022, the trigger wedge 303 is in a release state; when the trigger wedge 303 is tangent to the guide groove 3021, the trigger wedge is hidden;
when the insulated grounding seat 301 is matched with the guide groove 3021, the trigger wedge 303 is matched with the release groove 3022, when the substrate suspension set 4 drives the substrate to enter the painting area, the trigger wedge 303 enters the guide groove 3021 from the release groove 3022 and is tangent to the lower surface of the guide groove 3021, because there is a depth difference between the guide groove 3022 and the release groove 3022, when the trigger wedge 303 enters the guide groove 3021 from the release groove 3022, the trigger wedge 303 moves in a direction perpendicular to the lower surface of the guide groove 3021 to be hidden in the insulated grounding seat 301, and when the substrate suspension set 4 drives the painting area of the substrate to be pulled, the trigger wedge 303 enters the release groove 3022 from the guide groove 3021 to be released, so that the hidden trigger wedge 303 is released and is in a release state.
Further, as shown in fig. 7 to 9, for the substrate suspension set 4, the substrate suspension set 4 includes a suspension column 401, a through groove 3023 is opened in a middle portion of a lower surface of the guide groove 3021, the through groove 3023 is used to provide a movement channel for the suspension column 401, one end of the suspension column 401, which is away from the substrate, extends into the cavity of the insulated ground socket 301, and is fixedly installed in the cavity of the insulated ground socket 301;
an internal hole 402 is formed in one end of the suspension column 401, a spring 403 is fixedly mounted at the bottom of the internal hole 402, one end of the spring 403 is fixedly mounted at the bottom of the grounding probe 305, and a section of the grounding probe 305 connected with the spring 403 is always positioned in the internal hole 402 and is in sliding fit with the internal hole 402;
when the production line conveying chain 2 drives the insulating grounding seat 301 to move, and the substrate suspension group 4 drives the substrate to gradually enter a spraying area, the trigger wedge 303 enters the guide groove 3021 from the release groove 3022 and is tangent to the lower surface of the guide groove 3021, and then is gradually hidden into the insulating grounding seat 301, and along with the hiding movement of the trigger wedge 303, the trigger wedge 303 drives the trigger base 304 to drive the grounding probe 305 to move along the central axis direction of the grounding probe 305, so that the grounding probe 305 is contacted with the guide assembly 5, so as to realize the grounding of the grounding probe 305, and as the grounding probe is slidably matched with the substrate suspension group 4 along the central axis direction of the grounding probe 305, namely the substrate suspension group 4 is contacted with the grounding probe 305, so that the substrate suspension group 4 is connected with the ground wire, and further realize the grounding of the substrate;
when the substrate gradually leaves the painting area, the grounding probe 305 moves towards the guiding assembly 5 due to the hidden movement of the trigger wedge 303, and the spring 403 is driven to stretch, so that the spring 403 deforms and generates a downward pulling force on the grounding probe 305, when the trigger wedge 303 is separated from the lower surface of the guide groove 3021, the spring 403 drives the grounding probe 305 to move downward, and since the grounding probe 305 and the trigger wedge 303 are both fixedly mounted on the trigger base 304, the trigger wedge 303 is driven to gradually expose from the insulating grounding seat 301 along with the reset of the spring 403, and returns to the position (i.e. tangent to the release groove 3022) when the substrate does not enter the painting area, so as to disconnect the electrical connection between the grounding probe 305 and the guiding assembly 5, and further disconnect the grounding of the substrate.
Further, referring to fig. 5 and fig. 7-8, for the above-mentioned guiding assembly 5, the guiding assembly 5 includes a guiding base 501, the guiding base 501 is fixedly mounted on the insulating ground socket 301, a T-shaped conductive block 502 is fixedly mounted in the guiding base 501, two symmetrical ends of the T-shaped conductive block 502 are tangentially provided with a guiding wheel 503, and the other end extends into a cavity of the insulating ground socket 301 for electrically connecting with the grounding probe 305;
the guide wheel 503 is rotatably installed in the middle of two ends of the guide base 501, and is tangentially connected with a guide rod 504, the guide rod 504 and the production line conveying chain 2 are correspondingly distributed, and the guide base 501 is arranged on the production line conveying chain 2 through an installation column 505, so that the guide base 501 moves along with the production line conveying chain 2 under the guidance of the track of the guide rod 504;
meanwhile, the guide rod 504 is connected with the ground wire;
therefore, the guide wheel 503 is tangent to the guide rod 504, the guide wheel 503 is tangent to the T-shaped conductive block 502, and the conductive rod 504 is connected with the ground wire, so that the T-shaped conductive block 502 is grounded, and when the grounding probe 305 is in contact with the T-shaped conductive block 502, the grounding probe 305 is electrically connected with the ground wire.
Further, referring to fig. 7-9, for the suspension post 401, a suspension seat 404 is fixedly installed at one end of the suspension post 401 near the substrate; the hanging seat 404 comprises a hanging base 4041, the lower surface of the hanging base 4041 is provided with a hanging platform 405, the hanging platform 405 is in sliding fit with the hanging base 4041 along the moving direction of the base material, and the hanging platform 405 is used for installing the base material and enabling the instant striking component 6 to accumulate force and strike on the hanging platform 405;
therefore, the base material is mounted through the suspension table 405, the suspension base 4041 and the suspension table 405 are driven to move along with the movement of the insulating ground socket 301, the suspension table 405 presses the transient impact component 6, the transient impact component 6 is subjected to force accumulation, the transient impact component 6 is released after the pressing is released along with the continuous movement of the suspension table 405, and impact is generated on the suspension table 405, so that the suspension table 405 vibrates, and the base material vibrates.
Further, referring to fig. 7-9, for the suspension base 4041, a spring base 4042 is slidably fitted on an inner wall of the suspension base 4041, a vibration spring 4043 is fixedly mounted on both sides of the spring base 4042, one end of the vibration spring 4043 is fixedly mounted on the inner wall of the suspension base 4041, and a middle portion of the spring base 4042 is fixedly connected to the suspension table 405;
the elastic coefficient of the vibration spring 4043 meets the requirement that the instantaneous impact component 6 is pressed by the suspension table 405 to accumulate force on the instantaneous impact component 6, and the suspension table 405 makes reciprocating motion of a certain distance in the deformation direction of the vibration spring 4043 after being impacted, so that the vibration effect of the suspension table 405 is achieved.
Further, referring to fig. 7 and 9, the suspension table 405 includes an upper platen 4051, a lower platen 4052, and an oscillating column 4053, the upper platen 4051 is fixedly connected to the spring base 4042, and both ends of the oscillating column 4053 are respectively fixedly mounted on the upper platen 4051 and the lower platen 4052;
and at least two oscillating columns 4053 are arranged, so that the front oscillating column 4053 in any two adjacent oscillating columns is used for accumulating the impact energy of the impact component 6, and the other oscillating column 4053 is used for bearing the impact generated after the accumulation energy of the impact component 6 is released.
Wherein the shock post 4053 is configured to compress the impact module 6 and withstand the impact generated after the impact module 6 is released, and the lower platen 4053 is configured to mount a substrate.
Further, referring to fig. 6 and 10, the instantaneous striking assembly 6 includes a base column 601, the base column 601 is fixedly installed on the top of the inner wall of the spraying chamber 1, a central column 602 is installed on the base column 601 in a rotating manner, one end of the central column 602 is fixedly installed with a striking block 603, the other end of the central column 602 extends into the base column 601 and is fixedly installed with a torsion spring seat 604, one side of the torsion spring seat 604 is fixedly installed with a torsion spring 605, and one end of the torsion spring 605 is fixedly installed on the inner wall of the base column 601;
the front shock column 4053 of any two adjacent shock columns presses the shock component 6 along with the movement of the base material, so that the shock component 6 stores power, after the shock column 4053 passes through the shock component 6, the shock component 6 is released instantly, and in the releasing process, because the rear shock column 4053 and the shock column 4053 move synchronously, the shock component 6 impacts the rear shock column 4053 along with the release of the shock component 6, so that the suspension table 405 formed by the upper table 4051, the lower table 4052 and the shock column 4053 drives the base material to vibrate;
the principle of the power accumulation and release of the instant shock assembly 6 is as follows:
the front oscillating column 4053 of any two extrudes one end of the striking block 603, so that the striking block 603 rotates around the central axis of the base column 601, the torsion spring seat 604 is driven to rotate, the torsion spring 605 deforms to generate torque, and continuous force storage is performed, after the front oscillating column 4053 passes through the striking block 603, the extrusion on the striking block 603 is relieved, the striking block 603 rotates in a resetting manner under the action of the torsion spring 605 torque, so that the striking block 603 generates a rotating speed, and when the striking block 603 contacts with the rear oscillating column 4053, impact is generated on the striking block 603.
Example 7, based on example 6
Referring to fig. 5 and 6, a coating device includes a coating chamber 1, wherein lifting devices are fixedly mounted in the middle portions of two sides of the coating chamber 1, the lifting devices drive a coating electrostatic coating gun 9 to reciprocate up and down, a muzzle of the coating electrostatic coating gun 9 is located in the coating chamber 1, and a coating range of the coating electrostatic coating gun 9 is a coating area.
Further, a coating collecting groove is arranged at the bottom of the inner wall of the spraying chamber 1 for collecting the coating which is not adhered to the surface of the substrate.
Comparative example 1
The comparative example discloses a film preparation process based on a reflective nano ceramic heat insulation film, which comprises the following steps:
(1) adding organic silicon resin (CAS number: 67763-03-5), ethanol, deionized water, a dispersant NNO, BYK-333 (flatting agent), 2,4,7, 9-tetramethyl-5-decyne-4, 7-diol (defoaming agent), n-butyl alcohol, 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole, 2-hydroxy-4-n-octyloxy benzophenone, nano ceramic powder and polyamide 651 (curing agent) under magnetic stirring to obtain a reflective nano ceramic heat-insulating coating; the total stirring time is 45min, and the stirring speed is 500 r/min. Wherein the mass ratio of the organic silicon resin (CAS number: 67763-03-5), ethanol, deionized water, a dispersant NNO, BYK-333, 2,4,7, 9-tetramethyl-5-decyne-4, 7-diol, n-butanol, 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole, 2-hydroxy-4-n-octyloxybenzophenone, the nano ceramic powder and the polyamide 651 is 57:30:8:1:1:1:10:3.5:3.5:18: 1.8.
(2) The reflective nano ceramic heat-insulating coating is uniformly sprayed on the PVC film, and the spraying amount is 25g/m 2 (ii) a After the spraying, the film was dried at 65 ℃ for 1.5 hours to obtain a reflective nanoceramic based thermal insulation film.
Comparative example 2:
the comparative example discloses a film preparation process based on a reflective nano ceramic heat insulation film, which comprises the following steps:
(1) adding organic silicon resin (CAS number: 67763-03-5), titanium dioxide powder, ethanol, deionized water, a dispersing agent NNO, BYK-333 (flatting agent), 2,4,7, 9-tetramethyl-5-decyne-4, 7-diol (defoaming agent), n-butyl alcohol, 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole, nano ceramic powder and polyamide 651 (curing agent) under magnetic stirring to obtain a reflective nano ceramic heat-insulating coating; the total stirring time is 45min, and the stirring speed is 500 r/min. Wherein the mass ratio of the organic silicon resin (CAS number: 67763-03-5), the titanium dioxide powder, ethanol, deionized water, a dispersant NNO, BYK-333, 2,4,7, 9-tetramethyl-5-decyne-4, 7-diol, n-butanol, 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole, the nano ceramic powder and the polyamide 651 is 53.5:7:30:8:1:1:1:10:3.5:18: 1.8.
(2) The reflective nano ceramic heat-insulating coating is uniformly sprayed on the PVC film, and the spraying amount is 25g/m 2 (ii) a After the spraying, the film was dried at 65 ℃ for 1.5 hours to obtain a reflective nanoceramic based thermal insulation film.
Comparative example 3:
the comparative example discloses a heat insulation film preparation process, which comprises the following steps:
(1) adding organic silicon resin (CAS number: 67763-03-5), titanium dioxide powder, ethanol, deionized water, a dispersing agent NNO, BYK-333 (flatting agent), 2,4,7, 9-tetramethyl-5-decyne-4, 7-diol (defoaming agent), n-butyl alcohol, 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole, 2-hydroxy-4-n-octyloxy benzophenone and polyamide 651 (curing agent) under magnetic stirring to obtain a heat-insulating coating; the total stirring time is 45min, and the stirring speed is 500 r/min. Wherein the organic silicon resin (CAS number: 67763-03-5), titanium dioxide powder, ethanol, deionized water, a dispersant NNO, BYK-333, 2,4,7, 9-tetramethyl-5-decyne-4, 7-diol, n-butanol, 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole, 2-hydroxy-4-n-octyloxy benzophenone and polyamide 651 are mixed according to the mass ratio of 65:7:30:8:1:1: 10:3.5:3.5: 1.8.
(2) The heat-insulating coating is evenly sprayed on the PVC film, and the spraying amount is 25g/m 2 (ii) a After the spraying, the film was dried at 65 ℃ for 1.5 hours to obtain a heat insulating film.
Further, the nano ceramic powder adopted in each example and comparative example of the present invention has an average particle size of 50 nm; the average particle diameter of the titanium dioxide powder is 50 nm.
Table 1 the prepared heat insulating film was tested for near infrared reflectance using a spectrophotometer. In table 1, the near infrared reflectance was measured in parallel three times using the reflectance value at a wavelength of 1200nm, which were experiment one, experiment two, and experiment three, respectively.
TABLE 1
The test results in Table 1 are shown. The near infrared reflectance of the reflective nanoceramic based thermal barrier films of examples 1-5, comparative example 2 is significantly higher than that of comparative examples 1, 3. Wherein. The experimental two near infrared reflectance of example 1 was as high as 83.31%. And because the titanium dioxide powder is not added in the comparative example 1 and the nano ceramic powder is not added in the comparative example 3, the near infrared reflectivity is lower. Comparative example 2 no 2-hydroxy-4-n-octoxybenzophenone was added, and since 2-hydroxy-4-n-octoxybenzophenone mainly exerts the purpose of absorbing ultraviolet rays, the near infrared reflection efficiency was not significantly changed.
Table 2 shows the ultraviolet absorption rate of the heat insulating film prepared by using a spectrophotometer, and the ultraviolet absorption rate in table 2 is measured in parallel three times using the value of the absorption rate at a wavelength of 280nm, which are experiment one, experiment two, and experiment three, respectively.
TABLE 2
The test results in table 2 are known. The ultraviolet absorptivity of the reflective nanoceramic based thermal barrier films of examples 1-5 is significantly higher than that of comparative example 2. The ultraviolet absorptivity of the experiment II of the example 1 is as high as 74.31%. In contrast, comparative example 2, in which 2-hydroxy-4-n-octyloxybenzophenone was not added, but 2-hydroxy-4-n-octyloxybenzophenone mainly exhibited the function of absorbing ultraviolet rays, resulted in a significant decrease in the ultraviolet absorption rate.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A film making process based on a reflection-type nano ceramic heat insulation film is characterized in that,
preparing a reflective nano ceramic heat-insulating coating; the raw materials for preparing the reflection-type nano ceramic heat-insulating coating comprise organic silicon resin, titanium dioxide powder, ethanol, deionized water, a dispersing agent, a flatting agent, a defoaming agent, n-butyl alcohol, 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole, 2-hydroxy-4-n-octoxy benzophenone, nano ceramic powder and a curing agent;
and (2) spraying the reflection type nano ceramic heat insulation coating on the substrate subjected to washing and vibration drying treatment, and drying after spraying to obtain the reflection type nano ceramic heat insulation film.
2. The reflective nanoceramic thermal insulation film-based film making process according to claim 1, wherein the substrate comprises one of a PVC film, a PP film, and a PE film.
3. The reflective nanoceramic thermal barrier film-making process of claim 2, comprising a grounding assembly, a substrate suspension set, a spray booth;
the spraying comprises the following steps: when the grounding assembly and the substrate suspension group drive the substrate subjected to vibration treatment to enter a spraying area in the spraying chamber, the grounding assembly is electrically connected with the substrate suspension group, the surface of the substrate is sprayed with the reflective nano ceramic heat-insulating coating, the substrate is electrically connected with the spraying area, and the substrate is automatically disconnected from the spraying area when the substrate is separated from the spraying area.
4. The reflective nanoceramic thermal barrier film-based manufacturing process of claim 1, wherein the leveling agent comprises BYK-333; the defoaming agent comprises 2,4,7, 9-tetramethyl-5-decyne-4, 7-diol; the curing agent includes polyamide 651.
5. The film making process based on the reflection type nano ceramic heat insulation film according to claim 1, wherein the mass ratio of the organic silicon resin, titanium dioxide powder, ethanol, deionized water, a dispersing agent, a leveling agent, a defoaming agent, n-butyl alcohol, 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole, 2-hydroxy-4-n-octyloxybenzophenone, the nano ceramic powder and a curing agent is 45-55:7-8:30:8:1-1.2:1-1.2:1-1.2:9-10:3-4:3-4:13-25: 1.6-1.9.
6. A reflective nanoceramic based thermal barrier film produced by a process for manufacturing a reflective nanoceramic based thermal barrier film as claimed in any one of claims 1 to 5.
7. A spraying device is characterized by comprising a spraying chamber, wherein a drying area is arranged in the spraying chamber, a plurality of instantaneous impact components are arranged in the drying area, and when a substrate suspension group moves in the drying area of the spraying chamber along with a production line conveying chain, the instantaneous impact components are driven to accumulate force and then impact on the substrate suspension group so as to be used for generating vibration by the substrate suspension group and transmitting the vibration to a substrate; the substrate is dried in a vibrating state.
8. The spray coating device of claim 7 wherein there is a spray coating region within the spray coating chamber for spraying the vibration dried substrate;
and the top of spray booth is provided with produces line conveying chain, its characterized in that: the upper surface of the spraying chamber is matched with a grounding assembly in a sliding mode through a guide assembly along the motion direction of a production line conveying chain, the grounding assembly is connected with a ground wire through the guide assembly, the grounding assembly is connected with a substrate suspension group, the production line conveying chain drives the substrate suspension group to move along the motion direction of the production line conveying chain through the grounding assembly and the guide assembly, and the substrate suspension group is used for arranging a substrate;
when the grounding assembly and the substrate suspension group drive the substrate to enter the spraying area in the spraying chamber, the grounding assembly is electrically connected with the substrate suspension group and keeps electrically connected with the substrate to be separated from the spraying area, and when the substrate is separated from the spraying area, the electrical connection between the grounding assembly and the substrate suspension group is automatically disconnected.
9. The spray coating device according to claim 8, wherein the grounding assembly comprises an insulating grounding seat and a track arranged on the upper surface of the spray coating chamber, the insulating grounding seat is matched with the track, the insulating grounding seat has a cavity, trigger wedges are arranged on two sides of the lower surface of the insulating grounding seat, one end of each trigger wedge is positioned in the cavity and fixedly mounted on the trigger base, and the other end of each trigger wedge is arranged in a tangent manner with the track;
a grounding probe is fixedly installed on the trigger base, one end of the base material suspension group extends into the cavity and is fixedly installed on the surface of the cavity, and the grounding probe and the base material suspension group are in sliding fit along the central axis direction of the grounding probe;
when the insulating ground seat slides along the track to the substrate enters the spraying area, the trigger wedge block is hidden in the insulating ground seat to be used for driving the trigger base to drive the grounding probe and the guide assembly to be electrically connected, and when the substrate is separated from the spraying area, the grounding probe automatically resets to enable the trigger wedge block to be unhidden and drive the grounding probe to be electrically connected with the guide assembly.
10. The spraying device of claim 8, wherein the guide assembly comprises a guide base, the guide base is fixedly mounted on the insulating grounding seat, a T-shaped conductive block is fixedly mounted in the guide base, two symmetrical ends of the T-shaped conductive block are tangentially provided with guide wheels, and the other end of the T-shaped conductive block extends into a cavity of the insulating grounding seat to be electrically connected with the grounding probe;
the guide wheels are rotatably installed in the middle of two ends of the guide base and are tangentially connected with guide rods, the guide rods and the production line conveying chain are correspondingly distributed, and the guide base is arranged on the production line conveying chain through mounting columns, so that the guide base moves along with the production line conveying chain under the guidance of the track of the guide rods;
and the guide rod is connected with the ground wire.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114958116A (en) * | 2022-06-30 | 2022-08-30 | 南京中蓝智能科技有限公司 | High-reflection heat dissipation type ceramic coating, construction equipment and construction process thereof |
| CN115608549A (en) * | 2022-12-05 | 2023-01-17 | 常州欧普莱机械制造有限公司 | New energy automobile water-cooling plate spraying production line with insulating properties test function |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0586493A (en) * | 1991-09-30 | 1993-04-06 | Trinity Ind Corp | Secondary sag preventive device for electrodeposition coating film |
| CN1951985A (en) * | 2006-10-20 | 2007-04-25 | 南京工业大学 | Transparent heat-insulating film and its preparing process |
| CN109453979A (en) * | 2018-12-26 | 2019-03-12 | 安庆安簧汽车零部件有限公司 | A kind of water paint coating process suitable for leaf springs of car |
| CN113071014A (en) * | 2021-03-19 | 2021-07-06 | 罗明成 | Supplementary mulling device is improved to polyurethane material water proofness |
| CN215823423U (en) * | 2021-07-23 | 2022-02-15 | 肇庆市品一科技有限公司 | A spraying line for producing bicycle frame |
| CN216115143U (en) * | 2021-09-29 | 2022-03-22 | 江苏磊金环境工程有限公司 | Multipurpose drying-machine that can be used to viscidity material to dry |
| CN114377309A (en) * | 2020-10-22 | 2022-04-22 | 东莞福泽尔电子科技有限公司 | Glass breaker capable of continuously beating |
-
2022
- 2022-06-09 CN CN202210647003.9A patent/CN114836071A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0586493A (en) * | 1991-09-30 | 1993-04-06 | Trinity Ind Corp | Secondary sag preventive device for electrodeposition coating film |
| CN1951985A (en) * | 2006-10-20 | 2007-04-25 | 南京工业大学 | Transparent heat-insulating film and its preparing process |
| CN109453979A (en) * | 2018-12-26 | 2019-03-12 | 安庆安簧汽车零部件有限公司 | A kind of water paint coating process suitable for leaf springs of car |
| CN114377309A (en) * | 2020-10-22 | 2022-04-22 | 东莞福泽尔电子科技有限公司 | Glass breaker capable of continuously beating |
| CN113071014A (en) * | 2021-03-19 | 2021-07-06 | 罗明成 | Supplementary mulling device is improved to polyurethane material water proofness |
| CN215823423U (en) * | 2021-07-23 | 2022-02-15 | 肇庆市品一科技有限公司 | A spraying line for producing bicycle frame |
| CN216115143U (en) * | 2021-09-29 | 2022-03-22 | 江苏磊金环境工程有限公司 | Multipurpose drying-machine that can be used to viscidity material to dry |
Non-Patent Citations (1)
| Title |
|---|
| 吴平等: "《当代大学物理（工科） 上册》", 31 December 2019, 机械工业出版社, pages: 149 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114958116A (en) * | 2022-06-30 | 2022-08-30 | 南京中蓝智能科技有限公司 | High-reflection heat dissipation type ceramic coating, construction equipment and construction process thereof |
| CN115608549A (en) * | 2022-12-05 | 2023-01-17 | 常州欧普莱机械制造有限公司 | New energy automobile water-cooling plate spraying production line with insulating properties test function |
| CN115608549B (en) * | 2022-12-05 | 2023-03-14 | 常州欧普莱机械制造有限公司 | New energy automobile water-cooling plate spraying production line with insulating properties test function |
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