CN114958233B - Preparation method of scratch-resistant reflective film - Google Patents
Preparation method of scratch-resistant reflective film Download PDFInfo
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- CN114958233B CN114958233B CN202210735390.1A CN202210735390A CN114958233B CN 114958233 B CN114958233 B CN 114958233B CN 202210735390 A CN202210735390 A CN 202210735390A CN 114958233 B CN114958233 B CN 114958233B
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- reflective film
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- 230000003678 scratch resistant effect Effects 0.000 title claims abstract description 57
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000010410 layer Substances 0.000 claims abstract description 245
- 239000011521 glass Substances 0.000 claims abstract description 58
- 239000004831 Hot glue Substances 0.000 claims abstract description 29
- -1 polyethylene Polymers 0.000 claims abstract description 23
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 21
- 238000004806 packaging method and process Methods 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 16
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000007822 coupling agent Substances 0.000 claims abstract description 13
- 239000010445 mica Substances 0.000 claims abstract description 11
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 11
- 239000004698 Polyethylene Substances 0.000 claims abstract description 10
- 229920000180 alkyd Polymers 0.000 claims abstract description 10
- 239000010425 asbestos Substances 0.000 claims abstract description 10
- 229920000573 polyethylene Polymers 0.000 claims abstract description 10
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 10
- 235000012424 soybean oil Nutrition 0.000 claims abstract description 10
- 239000003549 soybean oil Substances 0.000 claims abstract description 10
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims abstract description 7
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 239000002270 dispersing agent Substances 0.000 claims abstract description 5
- 241000196324 Embryophyta Species 0.000 claims description 57
- 239000011324 bead Substances 0.000 claims description 55
- 238000001035 drying Methods 0.000 claims description 41
- 239000003292 glue Substances 0.000 claims description 29
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 8
- 239000004925 Acrylic resin Substances 0.000 claims description 7
- 229920000178 Acrylic resin Polymers 0.000 claims description 7
- QORUGOXNWQUALA-UHFFFAOYSA-N N=C=O.N=C=O.N=C=O.C1=CC=C(C(C2=CC=CC=C2)C2=CC=CC=C2)C=C1 Chemical compound N=C=O.N=C=O.N=C=O.C1=CC=C(C(C2=CC=CC=C2)C2=CC=CC=C2)C=C1 QORUGOXNWQUALA-UHFFFAOYSA-N 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 7
- VPBZZPOGZPKYKX-UHFFFAOYSA-N 1,2-diethoxypropane Chemical group CCOCC(C)OCC VPBZZPOGZPKYKX-UHFFFAOYSA-N 0.000 claims description 6
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 6
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 6
- 239000003963 antioxidant agent Substances 0.000 claims description 6
- 230000003078 antioxidant effect Effects 0.000 claims description 6
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 6
- 238000013329 compounding Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- HBWGDHDXAMFADB-UHFFFAOYSA-N ethenyl(triethyl)silane Chemical compound CC[Si](CC)(CC)C=C HBWGDHDXAMFADB-UHFFFAOYSA-N 0.000 claims description 6
- 150000002191 fatty alcohols Chemical class 0.000 claims description 6
- 238000007731 hot pressing Methods 0.000 claims description 6
- 229920001911 maleic anhydride grafted polypropylene Polymers 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 6
- 235000019198 oils Nutrition 0.000 claims description 6
- 239000005022 packaging material Substances 0.000 claims description 6
- 239000003208 petroleum Substances 0.000 claims description 6
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 6
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 6
- 238000007639 printing Methods 0.000 claims description 6
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 6
- 230000004927 fusion Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 16
- 239000004005 microsphere Substances 0.000 abstract description 3
- 239000012790 adhesive layer Substances 0.000 description 23
- 230000000694 effects Effects 0.000 description 11
- 238000003466 welding Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
-
- 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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/08—Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids
-
- 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
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- 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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/35—Heat-activated
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/12—Reflex reflectors
- G02B5/126—Reflex reflectors including curved refracting surface
- G02B5/128—Reflex reflectors including curved refracting surface transparent spheres being embedded in matrix
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/12—Reflex reflectors
- G02B5/126—Reflex reflectors including curved refracting surface
- G02B5/13—Reflex reflectors including curved refracting surface plural curved refracting elements forming part of a unitary body
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- C—CHEMISTRY; METALLURGY
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/324—Alkali metal phosphate
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/304—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being heat-activatable, i.e. not tacky at temperatures inferior to 30°C
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/408—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the adhesive layer
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The preparation method of the scratch-resistant reflective film comprises a scratch-resistant layer, a reflective layer, a hot melt adhesive layer and a release layer which are sequentially arranged from top to bottom, wherein the reflective layer comprises a glass microsphere layer, a microprism layer and a packaging layer which are sequentially arranged from top to bottom; the scratch-resistant layer comprises the following raw materials: soybean oil modified alkyd resin, propylene glycol, mica powder, asbestos powder, a film forming auxiliary agent, a dispersing agent, a coupling agent, a leveling agent, polyethylene wax and polyoxyethylene alkylphenol ether; according to the application, the soybean oil modified alkyd resin is used as a main component, and the mica powder, the asbestos powder and the polyethylene wax are introduced to be matched while ensuring the toughness of the scratch-resistant layer, so that the hardness of the scratch-resistant layer is ensured, the content of each component is specifically limited, the scratch-resistant layer is ensured to have good softness and high hardness, the deformation caused by external force can be furthest resisted, and the deformation can be quickly recovered after the external force disappears, so that the scratch-resistant layer with good scratch resistance is obtained.
Description
Technical Field
The application belongs to the field of preparation of reflective films, and particularly relates to a preparation method of an anti-scratch reflective film.
Background
The reflecting film is made of a retroreflective material which can be directly applied to the film made of the reflecting material, and is widely applied to the fields of highway traffic, urban roads, shipping, mines, parking facilities and the like by utilizing glass bead technology, microprism technology, synthetic resin technology, film technology, coating technology and microreplication technology.
When the outer surface of the reflective film is exposed to the environment such as outside humidity, dirt, hard objects and the like, phenomena such as water drop condensation, dirt absorption, scratch and the like can occur, and the phenomena can cause the incident light to have optical effects such as refraction, absorption and the like, so that the path of the incident light is changed, the emitted light or the reflected light of the incident light is absorbed, and the incident light reaching the reflective film is reduced, so that the reflective effect of the reflective film is seriously weakened; further improvements are needed.
Disclosure of Invention
The application aims to overcome the defects of the prior art and provides a preparation method of an anti-scratch reflective film.
The application adopts the following technical scheme:
the preparation method of the scratch-resistant reflective film comprises a scratch-resistant layer, a reflective layer, a hot melt adhesive layer and a release layer which are sequentially arranged from top to bottom, wherein the reflective layer comprises a glass bead layer, a microprism layer and a packaging layer which are sequentially arranged from top to bottom;
the scratch-resistant layer comprises the following raw materials in parts by weight: 80-90 parts of soybean oil modified alkyd resin, 3-4 parts of propylene glycol, 10-15 parts of mica powder, 5-8 parts of asbestos powder, 1-3 parts of film forming auxiliary agent, 1-2 parts of dispersing agent, 0.5-1 part of coupling agent, 0.3-0.7 part of flatting agent, 3-5 parts of polyethylene wax and 1-2 parts of polyoxyethylene alkylphenol ether;
the preparation method comprises the following steps:
firstly, hot-pressing and re-engraving a micro-prism structure by utilizing a micro-prism mould to cast and mold uncured UV resin, and cooling to form a micro-prism layer;
spraying packaging materials on the surface of the microprism on the bottom surface of the microprism layer to form a packaging layer;
step three, coating the hot melt adhesive on the release layer through a printing roller, drying to form the hot melt adhesive layer, and then compounding and forming with the bottom surface of the packaging layer;
coating plant glue on the top surface of the microprism layer, embedding glass beads on the plant glue, and drying to form a glass bead layer;
and fifthly, spraying a scratch-resistant layer material on the surface of the glass microsphere layer, and drying to form the scratch-resistant reflective film.
Further, the glass bead layer comprises a plant glue layer and a plurality of glass beads distributed on the plant glue layer, the micro-prism layer comprises a base layer and micro-prism units formed on the bottom surface of the base layer, and the glass beads are opposite to the vertex angles of the micro-prism units.
Further, the basic unit top surface is connected with plant glue film bottom surface, and plant glue film includes from its top surface undercut to the plant district that is used for installing glass bead with the basic unit butt fusion, the height of microprism unit is less than the seventy percent on microprism layer, plant glue film and the butt fusion height on basic unit are less than the two tenths on microprism layer.
In the fifth step, the drying temperature is 140-150 ℃ and the drying time is 1-2min.
Further, in the fourth step, the drying temperature is 110-120 ℃ and the drying time is 60-90S.
Further, the hot melt adhesive layer is composed of the following raw materials in parts by weight: 50-60 parts of modified acrylic resin, 1-3 parts of dioctyl phthalate, 1-2 parts of triethylvinylsilane, 10-15 parts of hydrogenated petroleum resin, 7-12 parts of naphthenic oil, 4-8 parts of triphenylmethane triisocyanate, 3-5 parts of maleic anhydride grafted polypropylene, 0.3-0.5 part of antioxidant BHT and 1-2 parts of fatty alcohol polyoxyethylene ether.
Further, the film forming auxiliary agent is propylene glycol diethyl ether.
Further, the dispersing agent is sodium tripolyphosphate.
Further, the coupling agent is a silane coupling agent KH550.
Further, the leveling agent is dimethyl siloxane.
As can be seen from the above description of the present application, compared with the prior art, the present application has the following beneficial effects:
firstly, the soybean oil modified alkyd resin is used as a main component, and mica powder, asbestos powder and polyethylene wax are introduced to be matched while ensuring the toughness of the scratch-resistant layer so as to ensure the hardness of the scratch-resistant layer, and the content of each component is specifically limited, so that the scratch-resistant layer is ensured to have good softness and high hardness, can resist deformation caused by external force to the greatest extent, and can recover deformation rapidly after the external force disappears so as to obtain the scratch-resistant layer with good scratch resistance; the mica powder is added, so that the thickness of the scratch-resistant layer can be increased, the adhesive force of the scratch-resistant layer on the glass bead layer can be enhanced, and the stable connection between the two layers is ensured;
secondly, limiting the structure of the reflecting layer, wherein the micro-prism layer is matched with the glass microsphere layer so as to obtain a good reflection coefficient, improve the reflecting effect of the reflecting film, and particularly limit the welding height of the plant adhesive layer and the base layer, ensure the reflecting effect of the reflecting film, and simultaneously ensure the cohesiveness between the plant adhesive layer and the base layer and ensure the stable connection between the two layers;
thirdly, the hot melt adhesive layer is limited to be composed of raw materials, the modified acrylic resin is used as a main raw material, and other raw materials are matched, so that the hot melt adhesive is strong, and the use of the temperature-variable reflective film is ensured; wherein, the triphenylmethane triisocyanate is introduced to be matched with the hydrogenation Dan Shuzhi, so that the viscosity and the ageing resistance of the hot melt adhesive can be improved, the falling of the reflecting film can be prevented, and the service life of the reflecting film can be prolonged.
Drawings
FIG. 1 is a structural cross-sectional view of a scratch-resistant retroreflective film;
in the figure, the 1-scratch-resistant layer, the 2-glass bead layer, the 3-microprism layer, the 4-packaging layer, the 5-hot melt adhesive layer, the 6-release layer, the 21-plant adhesive layer, the 22-glass beads, the 23-plant area, the 31-base layer and the 32-microprism unit.
Detailed Description
The application is further described below by means of specific embodiments.
Referring to fig. 1, an anti-scratch reflective film comprises an anti-scratch layer 1, a reflective layer, a hot melt adhesive layer 5 and a release layer 6 which are sequentially arranged from top to bottom, wherein the reflective layer comprises a glass bead layer 2, a microprism layer 3 and a packaging layer 4 which are sequentially arranged from top to bottom; specifically, the glass bead layer 2 comprises a plant glue layer 21 and a plurality of glass beads 22 distributed on the plant glue layer 21, the micro prism layer 3 comprises a base layer 31 and micro prism units 32 formed on the bottom surface of the base layer 31, and the glass beads 22 are opposite to the vertex angles of the micro prism units 32; further, the top surface of the base layer 31 is connected with the bottom surface of the plant adhesive layer 21, the plant adhesive layer 21 comprises a plant area 23 which is downwards sunken from the top surface to be welded with the base layer 31 and used for installing glass beads, the height of the micro prism unit 32 is less than seven tenths of that of the micro prism layer 3, the welding height of the plant adhesive layer 21 and the base layer 31 is less than two tenths of that of the micro prism layer 3, and the micro prism layer 3 is matched with the glass bead layer 2 through limiting the structure of the reflecting layer so as to obtain a better reflection coefficient, improve the reflecting effect of the reflecting film, and particularly limit the welding height of the plant adhesive layer 21 and the base layer 31, ensure the reflecting effect of the reflecting film and simultaneously ensure the cohesiveness between the plant adhesive layer 21 and the base layer 31 and ensure the stable connection between the two layers.
Wherein, the scratch-resistant layer 1 comprises the following raw materials in parts by weight: 80-90 parts of soybean oil modified alkyd resin, 3-4 parts of propylene glycol, 10-15 parts of mica powder, 5-8 parts of asbestos powder, 1-3 parts of propylene glycol diethyl ether, 1-2 parts of sodium tripolyphosphate, 0.5-1 part of a coupling agent, 0.3-0.7 part of dimethyl siloxane, 3-5 parts of polyethylene wax and 1-2 parts of polyoxyethylene alkylphenol ether; specifically, the coupling agent is a silane coupling agent KH550.
The hot melt adhesive layer 5 is composed of the following raw materials in parts by weight: 50-60 parts of modified acrylic resin, 1-3 parts of dioctyl phthalate, 1-2 parts of triethylvinylsilane, 10-15 parts of hydrogenated petroleum resin, 7-12 parts of naphthenic oil, 4-8 parts of triphenylmethane triisocyanate, 3-5 parts of maleic anhydride grafted polypropylene, 0.3-0.5 part of antioxidant BHT and 1-2 parts of fatty alcohol polyoxyethylene ether.
The preparation method comprises the following steps:
firstly, hot-pressing and re-engraving a micro-prism structure by utilizing a micro-prism mould to cast and mold uncured UV resin, and cooling to form a micro-prism layer;
spraying packaging materials on the surface of the microprism on the bottom surface of the microprism layer to form a packaging layer;
step three, coating the hot melt adhesive on the release layer through a printing roller, drying to form the hot melt adhesive layer, and then compounding and forming with the bottom surface of the packaging layer;
coating plant glue on the top surface of the microprism layer, then embedding glass beads on the plant glue, and drying to form a glass bead layer, wherein the drying temperature is 110-120 ℃ and the drying time is 60-90S;
and fifthly, spraying a scratch-resistant layer material on the surface of the glass bead layer, and drying to form a scratch-resistant reflective film, wherein the drying temperature is 140-150 ℃ and the drying time is 1-2min.
Example 1
Referring to fig. 1, an anti-scratch reflective film comprises an anti-scratch layer 1, a reflective layer, a hot melt adhesive layer 5 and a release layer 6 which are sequentially arranged from top to bottom, wherein the reflective layer comprises a glass bead layer 2, a microprism layer 3 and a packaging layer 4 which are sequentially arranged from top to bottom; specifically, the glass bead layer 2 comprises a plant glue layer 21 and a plurality of glass beads 22 distributed on the plant glue layer 21, the micro prism layer 3 comprises a base layer 31 and micro prism units 32 formed on the bottom surface of the base layer 31, and the glass beads 22 are opposite to the vertex angles of the micro prism units 32; further, the top surface of the base layer 31 is connected with the bottom surface of the plant adhesive layer 21, the plant adhesive layer 21 comprises a plant area 23 which is downwards sunken from the top surface to be welded with the base layer 31 and used for installing glass beads, the height of the micro prism unit 32 is less than seven tenths of that of the micro prism layer 3, the welding height of the plant adhesive layer 21 and the base layer 31 is less than two tenths of that of the micro prism layer 3, and the micro prism layer 3 is matched with the glass bead layer 2 through limiting the structure of the reflecting layer so as to obtain a better reflection coefficient, improve the reflecting effect of the reflecting film, and particularly limit the welding height of the plant adhesive layer 21 and the base layer 31, ensure the reflecting effect of the reflecting film and simultaneously ensure the cohesiveness between the plant adhesive layer 21 and the base layer 31 and ensure the stable connection between the two layers.
Wherein, the scratch-resistant layer 1 comprises the following raw materials in parts by weight: 80 parts of soybean oil modified alkyd resin, 4 parts of propylene glycol, 10 parts of mica powder, 8 parts of asbestos powder, 1 part of propylene glycol diethyl ether, 2 parts of sodium tripolyphosphate, 0.5 part of coupling agent, 0.7 part of dimethyl siloxane, 3 parts of polyethylene wax and 2 parts of polyoxyethylene alkylphenol ether; specifically, the coupling agent is a silane coupling agent KH550.
The hot melt adhesive layer 5 is composed of the following raw materials in parts by weight: 50 parts of modified acrylic resin, 3 parts of dioctyl phthalate, 1 part of triethylvinylsilane, 15 parts of hydrogenated petroleum resin, 7 parts of naphthenic oil, 8 parts of triphenylmethane triisocyanate, 3 parts of maleic anhydride grafted polypropylene, 0.5 part of antioxidant BHT and 1 part of fatty alcohol polyoxyethylene ether.
The preparation method comprises the following steps:
firstly, hot-pressing and re-engraving a micro-prism structure by utilizing a micro-prism mould to cast and mold uncured UV resin, and cooling to form a micro-prism layer;
spraying packaging materials on the surface of the microprism on the bottom surface of the microprism layer to form a packaging layer;
step three, coating the hot melt adhesive on the release layer through a printing roller, drying to form the hot melt adhesive layer, and then compounding and forming with the bottom surface of the packaging layer;
coating plant glue on the top surface of the microprism layer, then embedding glass beads on the plant glue, and drying to form a glass bead layer, wherein the drying temperature is 110 ℃ and the drying time is 90S;
and fifthly, spraying a scratch-resistant layer material on the surface of the glass bead layer, and drying to form a scratch-resistant reflective film, wherein the drying temperature is 140 ℃ and the drying time is 2min.
Example 2
Referring to fig. 1, an anti-scratch reflective film comprises an anti-scratch layer 1, a reflective layer, a hot melt adhesive layer 5 and a release layer 6 which are sequentially arranged from top to bottom, wherein the reflective layer comprises a glass bead layer 2, a microprism layer 3 and a packaging layer 4 which are sequentially arranged from top to bottom; specifically, the glass bead layer 2 comprises a plant glue layer 21 and a plurality of glass beads 22 distributed on the plant glue layer 21, the micro prism layer 3 comprises a base layer 31 and micro prism units 32 formed on the bottom surface of the base layer 31, and the glass beads 22 are opposite to the vertex angles of the micro prism units 32; further, the top surface of the base layer 31 is connected with the bottom surface of the plant adhesive layer 21, the plant adhesive layer 21 comprises a plant area 23 which is downwards sunken from the top surface to be welded with the base layer 31 and used for installing glass beads, the height of the micro prism unit 32 is less than seven tenths of that of the micro prism layer 3, the welding height of the plant adhesive layer 21 and the base layer 31 is less than two tenths of that of the micro prism layer 3, and the micro prism layer 3 is matched with the glass bead layer 2 through limiting the structure of the reflecting layer so as to obtain a better reflection coefficient, improve the reflecting effect of the reflecting film, and particularly limit the welding height of the plant adhesive layer 21 and the base layer 31, ensure the reflecting effect of the reflecting film and simultaneously ensure the cohesiveness between the plant adhesive layer 21 and the base layer 31 and ensure the stable connection between the two layers.
Wherein, the scratch-resistant layer 1 comprises the following raw materials in parts by weight: 90 parts of soybean oil modified alkyd resin, 3 parts of propylene glycol, 15 parts of mica powder, 5 parts of asbestos powder, 3 parts of propylene glycol diethyl ether, 1 part of sodium tripolyphosphate, 1 part of coupling agent, 0.3 part of dimethyl siloxane, 5 parts of polyethylene wax and 1 part of polyoxyethylene alkylphenol ether; specifically, the coupling agent is a silane coupling agent KH550.
The hot melt adhesive layer 5 is composed of the following raw materials in parts by weight: 60 parts of modified acrylic resin, 1 part of dioctyl phthalate, 2 parts of triethylvinylsilane, 10 parts of hydrogenated petroleum resin, 12 parts of naphthenic oil, 4 parts of triphenylmethane triisocyanate, 5 parts of maleic anhydride grafted polypropylene, 0.3 part of antioxidant BHT and 2 parts of fatty alcohol polyoxyethylene ether.
The preparation method comprises the following steps:
firstly, hot-pressing and re-engraving a micro-prism structure by utilizing a micro-prism mould to cast and mold uncured UV resin, and cooling to form a micro-prism layer;
spraying packaging materials on the surface of the microprism on the bottom surface of the microprism layer to form a packaging layer;
step three, coating the hot melt adhesive on the release layer through a printing roller, drying to form the hot melt adhesive layer, and then compounding and forming with the bottom surface of the packaging layer;
coating plant glue on the top surface of the microprism layer, then embedding glass beads on the plant glue, and drying to form a glass bead layer, wherein the drying temperature is 120 ℃, and the drying time is 60S;
and fifthly, spraying a scratch-resistant layer material on the surface of the glass bead layer, and drying to form a scratch-resistant reflective film, wherein the drying temperature is 150 ℃ and the drying time is 1min.
Example 3
Referring to fig. 1, an anti-scratch reflective film comprises an anti-scratch layer 1, a reflective layer, a hot melt adhesive layer 5 and a release layer 6 which are sequentially arranged from top to bottom, wherein the reflective layer comprises a glass bead layer 2, a microprism layer 3 and a packaging layer 4 which are sequentially arranged from top to bottom; specifically, the glass bead layer 2 comprises a plant glue layer 21 and a plurality of glass beads 22 distributed on the plant glue layer 21, the micro prism layer 3 comprises a base layer 31 and micro prism units 32 formed on the bottom surface of the base layer 31, and the glass beads 22 are opposite to the vertex angles of the micro prism units 32; further, the top surface of the base layer 31 is connected with the bottom surface of the plant adhesive layer 21, the plant adhesive layer 21 comprises a plant area 23 which is downwards sunken from the top surface to be welded with the base layer 31 and used for installing glass beads, the height of the micro prism unit 32 is less than seven tenths of that of the micro prism layer 3, the welding height of the plant adhesive layer 21 and the base layer 31 is less than two tenths of that of the micro prism layer 3, and the micro prism layer 3 is matched with the glass bead layer 2 through limiting the structure of the reflecting layer so as to obtain a better reflection coefficient, improve the reflecting effect of the reflecting film, and particularly limit the welding height of the plant adhesive layer 21 and the base layer 31, ensure the reflecting effect of the reflecting film and simultaneously ensure the cohesiveness between the plant adhesive layer 21 and the base layer 31 and ensure the stable connection between the two layers.
Wherein, the scratch-resistant layer 1 comprises the following raw materials in parts by weight: 85 parts of soybean oil modified alkyd resin, 3.5 parts of propylene glycol, 12 parts of mica powder, 7 parts of asbestos powder, 2 parts of propylene glycol diethyl ether, 1.5 parts of sodium tripolyphosphate, 0.8 part of coupling agent, 0.5 part of dimethyl siloxane, 4 parts of polyethylene wax and 1.5 parts of polyoxyethylene alkylphenol ether; specifically, the coupling agent is a silane coupling agent KH550.
The hot melt adhesive layer 5 is composed of the following raw materials in parts by weight: 55 parts of modified acrylic resin, 2 parts of dioctyl phthalate, 1.5 parts of triethylvinylsilane, 12 parts of hydrogenated petroleum resin, 9 parts of naphthenic oil, 6 parts of triphenylmethane triisocyanate, 4 parts of maleic anhydride grafted polypropylene, 0.4 part of antioxidant BHT and 1.5 parts of fatty alcohol polyoxyethylene ether.
The preparation method comprises the following steps:
firstly, hot-pressing and re-engraving a micro-prism structure by utilizing a micro-prism mould to cast and mold uncured UV resin, and cooling to form a micro-prism layer;
spraying packaging materials on the surface of the microprism on the bottom surface of the microprism layer to form a packaging layer;
step three, coating the hot melt adhesive on the release layer through a printing roller, drying to form the hot melt adhesive layer, and then compounding and forming with the bottom surface of the packaging layer;
coating plant glue on the top surface of the microprism layer, then embedding glass beads on the plant glue, and drying to form a glass bead layer, wherein the drying temperature is 115 ℃ and the drying time is 75S;
and fifthly, spraying a scratch-resistant layer material on the surface of the glass bead layer, and drying to form a scratch-resistant reflective film, wherein the drying temperature is 145 ℃ and the drying time is 1.5min.
The retroreflective sheeting of examples 1 to 3 was subjected to scratch resistance test with prior art scratch resistant retroreflective sheeting.
Wherein, scratch resistance test includes the following steps:
step 1: the scratch-resistant films according to examples 1 to 3 and comparative example 1 were respectively numbered A to D, and the scratch-resistant films of the respective numbers were fixed on a test stand;
step 2: a scraper is arranged in the middle of the anti-scratch film, the scraper is controlled to reciprocate on the anti-scratch film through a reciprocating motor, the reciprocating frequency is controlled to be 1 time/s, the total stroke of one reciprocating time is 8cm, and the test time is controlled to be 5 seconds;
step 3: detecting the surface of the scratch-resistant film, observing scratch conditions, and recording the number and the length of scratch strips;
step 4: and (3) placing scrapers on the left side and the right side of the scratch-resistant film, repeating the steps for 1-3 times, and recording the number of scratches.
TABLE 1 scratch resistance test record table
The scratch-resistant retroreflective sheeting prepared in examples 1 to 3 was tested in response to the prior art scratch-resistant retroreflective sheeting, and the following data were obtained:
table 2 data test table
| Project | Example 1 | Example 2 | Example 3 | Comparative example |
| Pencil hardness (H) | 4 | 5 | 4 | 7 |
| Tensile breaking strength (MPa) | 62 | 63 | 65 | 49 |
| Elongation at break (%) | 572 | 569 | 576 | 543 |
As can be seen from tables 1 and 2, the scratch-resistant reflective film prepared by the application has good scratch resistance, takes soybean oil modified alkyd resin as a main component, ensures the toughness of the scratch-resistant layer, simultaneously introduces mica powder, asbestos powder and polyethylene wax to be matched so as to ensure the hardness of the scratch-resistant layer, and specifically limits the content of each component so as to ensure the good flexibility and high hardness of the scratch-resistant layer, can furthest resist deformation caused by external force, and can quickly recover the deformation after the external force disappears so as to obtain the scratch-resistant layer with good scratch resistance.
The foregoing description is only illustrative of the preferred embodiments of the present application and is not to be construed as limiting the scope of the application, i.e., the application is not to be limited to the details of the claims and the description, but rather is to cover all modifications which are within the scope of the application.
Claims (9)
1. The preparation method of the scratch-resistant reflective film is characterized by comprising the following steps of: the anti-scratch reflective film comprises an anti-scratch layer, a reflective layer, a hot melt adhesive layer and a release layer which are sequentially arranged from top to bottom, wherein the reflective layer comprises a glass bead layer, a microprism layer and a packaging layer which are sequentially arranged from top to bottom;
the scratch-resistant layer comprises the following raw materials in parts by weight: 80-90 parts of soybean oil modified alkyd resin, 3-4 parts of propylene glycol, 10-15 parts of mica powder, 5-8 parts of asbestos powder, 1-3 parts of film forming auxiliary agent, 1-2 parts of dispersing agent, 0.5-1 part of coupling agent, 0.3-0.7 part of flatting agent, 3-5 parts of polyethylene wax and 1-2 parts of polyoxyethylene alkylphenol ether;
the preparation method comprises the following steps:
firstly, hot-pressing and re-engraving a micro-prism structure by utilizing a micro-prism mould to cast and mold uncured UV resin, and cooling to form a micro-prism layer;
spraying packaging materials on the surface of the microprism on the bottom surface of the microprism layer to form a packaging layer;
step three, coating the hot melt adhesive on the release layer through a printing roller, drying to form the hot melt adhesive layer, and then compounding and forming with the bottom surface of the packaging layer;
coating plant glue on the top surface of the microprism layer, embedding glass beads on the plant glue, and drying to form a glass bead layer;
spraying a scratch-resistant layer material on the surface of the glass bead layer, and drying to form a scratch-resistant reflective film;
the hot melt adhesive layer is composed of the following raw materials in parts by weight: 50-60 parts of modified acrylic resin, 1-3 parts of dioctyl phthalate, 1-2 parts of triethylvinylsilane, 10-15 parts of hydrogenated petroleum resin, 7-12 parts of naphthenic oil, 4-8 parts of triphenylmethane triisocyanate, 3-5 parts of maleic anhydride grafted polypropylene, 0.3-0.5 part of antioxidant BHT and 1-2 parts of fatty alcohol polyoxyethylene ether.
2. The method for preparing the scratch-resistant reflective film according to claim 1, wherein the method comprises the following steps: the glass bead layer comprises a plant glue layer and a plurality of glass beads distributed on the plant glue layer, the micro-prism layer comprises a base layer and micro-prism units formed on the bottom surface of the base layer, and the glass beads are opposite to the vertex angles of the micro-prism units.
3. The method for preparing the scratch-resistant reflective film according to claim 2, wherein the method comprises the following steps: the plant glue layer includes from its top surface undercut to the plant district that is used for installing glass bead with the basic unit butt fusion, the height of microprism unit is less than the seven tenths of microprism layer, the butt fusion height of plant glue layer and basic unit is less than the two tenths of microprism layer.
4. The method for preparing the scratch-resistant reflective film according to claim 1, wherein the method comprises the following steps: and fifthly, drying at 140-150 ℃ for 1-2min.
5. The method for preparing the scratch-resistant reflective film according to claim 1, wherein the method comprises the following steps: in the fourth step, the drying temperature is 110-120 ℃ and the drying time is 60-90S.
6. The method for preparing the scratch-resistant reflective film according to claim 1, wherein the method comprises the following steps: the film forming auxiliary agent is propylene glycol diethyl ether.
7. The method for preparing the scratch-resistant reflective film according to claim 1, wherein the method comprises the following steps: the dispersing agent is sodium tripolyphosphate.
8. The method for preparing the scratch-resistant reflective film according to claim 1, wherein the method comprises the following steps: the coupling agent is a silane coupling agent KH550.
9. The method for preparing the scratch-resistant reflective film according to claim 1, wherein the method comprises the following steps: the leveling agent is dimethyl siloxane.
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