CN106956486A - Thermal isolation film with high ultraviolet-resistant performance and preparation method thereof - Google Patents
Thermal isolation film with high ultraviolet-resistant performance and preparation method thereof Download PDFInfo
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- CN106956486A CN106956486A CN201710130534.XA CN201710130534A CN106956486A CN 106956486 A CN106956486 A CN 106956486A CN 201710130534 A CN201710130534 A CN 201710130534A CN 106956486 A CN106956486 A CN 106956486A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
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- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- B32—LAYERED PRODUCTS
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- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
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- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
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- 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
- C09D133/00—Coating compositions 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; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
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- 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
- C09D5/32—Radiation-absorbing paints
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- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
- B29K2067/003—PET, i.e. poylethylene terephthalate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
- B32B2250/244—All polymers belonging to those covered by group B32B27/36
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
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- B32—LAYERED PRODUCTS
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- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/71—Resistive to light or to UV
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- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
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- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
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Abstract
The present invention provides a kind of thermal isolation film with high ultraviolet-resistant performance and preparation method thereof, and the section of the thermal isolation film has layer structure, installs glue-line and mould release membrance including scratch-resistant layer, basement membrane, ultraviolet-resistant composite bed, basement membrane, ultraviolet-resistant successively;The ultraviolet-resistant composite bed and ultraviolet-resistant are installed glue-line and formed by UV absorption coatings, and the UV absorption coating at least includes UV absorbers, pressure sensitive adhesive and solvent;The anti-scratch series of strata are coated with and formed by photocureable coating or light curing nano insulating moulding coating, and photocureable coating or the light curing nano insulating moulding coating at least includes light-cured resin and auxiliary agent.Thermal isolation film produced by the present invention has high durable, fine definition and high ultraviolet-resistant performance, and its infrared barrier rate is more than 85%, and mist degree is less than 0.1%, UVA long-wave bands ultraviolet permeability and is less than 1%, and ultraviolet-resistant performance is in 100mw/m2UV intensity is undamped after irradiating 7 hours.
Description
Technical field
The present invention relates to composite type heat-insulating film, more particularly to a kind of thermal isolation film with high ultraviolet-resistant performance, and this
The preparation method of composite membrane is planted, belongs to composite membrane processing technique field.
Background technology
Sunshine membrane is also referred to as thermal isolation film, is widely used in automobile and building glass window.The major function of thermal isolation film is barrier sun
Ultraviolet and infrared energy in light, the former can reduce the ultraviolet injury to skin and interior decoration, and improve thermal isolation film in itself
Service life;The latter can reduce the sunlight energy got in, and then reduce summer air conditioning energy consumption.
Uv energy in sunlight is concentrated mainly on 200nm~400nm wavelength bands, be divided into UVC (200nm~280nm),
The wave band such as UVB (280nm~315nm) and UVA (315nm~400nm), wherein UVC wave bands photon energy highest, the injury to people
Maximum, but before earth surface is reached, absorbed substantially by atmosphere.Human body skin is long-term exposure to UVB wave bands, and severe patient can draw
Play squamous cell carcinoma;Although UVA wave bands are big without UVB wave bands to the injury of people, melanoma and photodermatitis are also resulted in.
The big multipotency barrier UVB wave band ultraviolet lights of presently commercially available thermal isolation film, but in some deficiencies of the barrier of UVA wave bands, transmitance is general
More than 10%.
Chinese patent literature CN101831126A and CN105295279A disclose a kind of by being implanted into barrier UVB wave bands
The fluorescent whitening agent of Benzophenone or benzotriazole ultraviolet absorber and barrier UVA wave bands in polymer, further melting and
Stretching, which is made, can obstruct the ultraviolet polymer film of all band.Chinese patent literature CN103725218A discloses one kind in two basement membranes
Between be combined one layer containing compound adhesive, absorb the benzophenone or nanometer titanic oxide material of UVB wave bands and absorb UVA wave bands
The all band ultraviolet-resistant film of Yellow azo dye.Chinese patent literature CN103935098A discloses a kind of for electronic product
The all band ultraviolet-resistant film of screen protection, its ultraviolet-resistant layer is compound between two basement membranes, and ultraviolet-resistant layer includes pressure-sensitive
Glue, the benzotriazole ultraviolet absorber UV-P for obstructing UVB wave bands, and absorb the fluorescent whitening agent of UVA wave bands, color essence, pearl
Light powder or fluorescent material.
Present inventor has found there is a larger deficiency using above technical scheme, i.e.,:Product through exposure in 1 year,
UVA wave bands barriering efficiency can produce deep fades, and can not meet the requirement that optical grade fenestrated membrane mist degree is less than 0.3%.Therefore, have
Necessity is to its improvement for further study.
The content of the invention
The purpose of the present invention is exactly to have high ultraviolet resistance there is provided one kind to solve the above-mentioned problems in the prior art
The thermal isolation film of separating performance, and this composite membrane preparation method, make thermal isolation film while with good effect of heat insulation, can have
Effect barrier UVA long-wave band uv energies, and have fine definition and high-weatherability energy concurrently.
The technology of the present invention solution is:A kind of thermal isolation film with high ultraviolet-resistant performance, the thermal isolation film is a kind of multiple
Film is closed, section has layer structure, and layered structure includes scratch-resistant layer, basement membrane, ultraviolet-resistant composite bed, basement membrane, purple successively
Glue-line and mould release membrance are installed in outer barrier.
Preferably, the thickness of the scratch-resistant layer is 1.5~5.0 microns, and the thickness of two layers of basement membrane is 19~100 microns,
The thickness that ultraviolet-resistant composite bed and ultraviolet-resistant install glue-line is 4.5~12.5 microns, and the thickness of mould release membrance is micro- for 19~25
Rice.
It is highly preferred that the thickness of the scratch-resistant layer is 1.8~4.5 microns, the thickness of two layers of basement membrane is 23~36 microns,
The thickness that ultraviolet-resistant composite bed and ultraviolet-resistant install glue-line is 5.5~8.5 microns.
More preferably, two layers basement membrane be selected from the transparent PET basement membrane through sided corona treatment or precoating treatment, primary colors PET basement membranes or
Plate metal PET basement membranes.
Present invention also offers a kind of preparation method of the thermal isolation film with high ultraviolet-resistant performance, comprise the following steps:
Step one, the optical grade poly terephthalic acid second that the internal haze through corona or precoating treatment is less than 0.3% is chosen
Diol ester (PET) film is used as basement membrane;
Step 2, the preparation of ultraviolet-resistant composite bed:With nick coating method by UV absorption coatings in step one
Any one side of second basement membrane selected after first any one side of basement membrane of selection, coated and dried with step one is compounded to form
UV absorption composite membrane;
Step 3, ultraviolet-resistant installs the preparation of glue-line:With nick coating method by UV absorption coatings in step
Silicone oil face after two untapped base film surfaces, coated and dried with mould release membrance is combined;
Step 4, the preparation of scratch-resistant layer:Photocureable coating or light curing nano insulating moulding coating are coated on into step 3 does not make
After base film surface, drying and nitrogen protect oxygen-free environment under ultraviolet light polymerization formation scratch-resistant layer.
Wherein:
(1) among step 2 and step 3, the UV absorption coating at least includes UV absorbers, pressure sensitive adhesive and molten
Agent, the consumption of the UV absorbers is 35%~55Wt% of pressure sensitive adhesive, and the pressure sensitive adhesive is one-component esters of acrylic acid
Or two-component acrylicester class pressure sensitive adhesive.
Preferably, the UV absorbers are the UV Absorption of Benzophenone class, benzotriazole or oxybenzene triazines
Agent, when usage amount is 0.5g/m2When, its 360nm uv transmittance is less than 0.5%;The solvent be ethyl acetate, butanone,
Isobutanol, toluene, the one or more of propylene glycol methyl ether acetate or DAA;When the solvent includes ethyl acetate,
The percentage composition that ethyl acetate accounts for solvent gross weight is not less than 85%.
(2) among step 4, photocureable coating or the light curing nano insulating moulding coating at least include light-cured resin and
Auxiliary agent;The light-cured resin includes difunctional light-cured resin and/or six functional groups light-cured resin, and difunctional light is consolidated
Change resin and account for the 0~20% of the light-cured resin total amount, six functional groups light-cured resin accounts for the light-cured resin total amount
80~100%;The auxiliary agent includes light trigger, levelling agent and retarder thinner, wherein, the light trigger is the photocuring
The 4~10% of weight resin, the levelling agent is the 1.0~2.5% of the light-cured resin weight.
The light curing nano insulating moulding coating includes nano dispersion fluid, light-cured resin and auxiliary agent, the nano dispersion fluid
At least include nano material and dispersant;Wherein, the nano material is from the doped tungsten oxide or indium that particle diameter is 30~80nm
Tin-oxide or lanthanum hexaboride, the dispersant are the 50~120% of the nano material weight.
(3) among the preparation method of the above-mentioned thermal isolation film with high ultraviolet-resistant performance, the light-cured resin is following
One or more combinations:Propylene glycol diacrylate, the third oxidation neopentylglycol diacrylate olefin(e) acid ester, tripropylene glycol
Diacrylate, ethoxy ethoxy ethoxy acrylate, hexanediyl ester, hexanediyl ester, poly- two
The acrylate of pentaerythrite five/six, aliphatic urethane diacrylate, the acrylate of adoption urethane six.
(4) among the preparation method of the above-mentioned thermal isolation film with high ultraviolet-resistant performance, the light trigger is following
One or more combination:2- hydroxy-2-methyl -1- phenylacetones, 1- hydroxy cyclohexylphenyl alkyl Benzophenone, 2- hydroxyls -4 '-(2- hydroxyls
Ethyoxyl) -2- methyl phenyl ketones, 4- hydroxy benzophenones and (2,4,6- trimethylbenzoyl) diphenyl phosphine oxide.
Compared with prior art, advantages of the present invention is embodied in:
1st, the UV absorption composite bed and UV absorption that the present invention is provided are installed in glue-line, are up in ultraviolet absorber ratio
In the case of more than 35%, ultraviolet absorber is matched well with pressure sensitive adhesive, is not produced ultraviolet absorber and is separated out problem, so clearly
It is clear to spend and have good stability.
2nd, the ultraviolet absorber composition that the present invention is provided is single, will not produce between the complicated ingredient of prior art presence
With problem, the problems such as definition reduction for more not using fluorescent whitening agent to be brought is shortened with service life.
3rd, the thermal isolation film for the high ultraviolet-resistant of high durable fine definition that the present invention is provided:Infrared barrier rate is more than 85%, mist
Degree is less than 0.1%, and definition reaches optical grade;Ultraviolet-resistant good stability, in 100mW/cm2UV intensity (about sunlight
60 times of UV intensity) irradiation 7 hours after, barrier property is essentially unchanged;UVA wave band ultraviolet-resistant rates reach more than 99%, completely
Without worrying that skin, by ultraviolet injury, is the suncream for not taking off change, with good resultant effects such as energy-conservation, skin care and safety.
Brief description of the drawings
Fig. 1 is the product structure schematic diagram of the present invention;
Fig. 2 is the product spectrogram of the embodiment of the present invention 1,2 and 3;
Fig. 3 is the ultraviolet weather-proof test light spectrogram of the product of the embodiment of the present invention 1;
Fig. 4 is the ultraviolet weather-proof test light spectrogram of the product of the embodiment of the present invention 3.
Wherein, the implication of each mark is among Fig. 1:101- scratch-resistant layers, 102- basement membranes, 103- ultraviolet-resistant composite beds,
104- basement membranes, 105- ultraviolet-resistants install glue-line, 106- mould release membrances;
Sample 1,2 and 3 among Fig. 2 corresponds respectively to embodiment 1,2 and 3;
In the weather-proof test process of Fig. 3 and Fig. 4, ultraviolet irradiation intensity is 100mW/cm2, the intensity is uv energy in sunlight
60 times.
Embodiment
The present invention provides the thermal isolation film of a kind of high durable, fine definition and high ultraviolet-resistant, and the thermal isolation film is that one kind is included
The composite membrane of two layers of basement membrane, its layer structure as shown in figure 1, include successively:Scratch-resistant layer 101, basement membrane 102, ultraviolet-resistant is combined
Layer 103, basement membrane 104, ultraviolet-resistant installs glue-line 105, mould release membrance 106.
Both can be with identical for basement membrane 102 and 104, can also be different, specifically can be using purchased in market through sided corona treatment or precoating
Transparent PET basement membrane, primary colors PET basement membranes or the plating metal PET basement membranes of processing;The thickness of basement membrane is generally 19~100 microns, preferentially
23~36 microns of selection;Mould release membrance 106 is peeled off strong using the PET basement membranes of coating silicone oil purchased in market, preferably 19~25 microns of thickness
Spend for 15~25 gram inch.
According to technical solution of the present invention, scratch-resistant layer 101 is by photocureable coating or light curing nano insulating moulding coating coating shape
Into photocureable coating or the light curing nano insulating moulding coating at least includes light-cured resin and auxiliary agent;Ultraviolet-resistant composite bed
103 and ultraviolet-resistant install glue-line 105 be to be formed by UV absorption coatings, the UV absorption coating at least include it is ultraviolet
Light absorber, pressure sensitive adhesive and solvent.
During specific implementation, the light-cured resin in the photocureable coating includes difunctional light-cured resin and/or six
Functional group's light-cured resin, difunctional light-cured resin accounts for the 0~20% of the light-cured resin total amount, and six functional groups light is consolidated
Change resin and account for the 80~100% of the light-cured resin total amount.The auxiliary agent used in photocureable coating includes:Light trigger, stream
Flat agent and retarder thinner, wherein, the consumption of light trigger is the 4~6% of light-cured resin weight, and the consumption of levelling agent is that light is consolidated
Change the 1.0~2.5% of weight resin.The scratch-resistant layer 101 to be formed is coated with such photocureable coating, its thickness general control exists
1.5~2.5 microns, it is preferably controlled within 1.8~2.2 micrometer ranges.
Further, the photocureable coating can also add nano dispersion fluid formation light curing nano insulating moulding coating.It is described
Light curing nano insulating moulding coating includes nano dispersion fluid, light-cured resin and auxiliary agent, wherein, light-cured resin includes difunctional
Light-cured resin and six functional groups light-cured resin, difunctional light-cured resin account for the light-cured resin total amount 0~
10%, six functional groups light-cured resin accounts for the 90~100% of the light-cured resin total amount;The nano dispersion fluid at least includes
Nano material and dispersant, wherein, the nano material is from doped tungsten oxide or indium tin oxidation of the particle diameter for 30~80nm
Thing or lanthanum hexaboride, prioritizing selection doped tungsten oxide, the dispersant is the 50~120% of the nano material weight;It is described
Light-cured resin is the 400~800% of the nano material weight;The auxiliary agent includes light trigger, levelling agent and diluted molten
Agent, wherein, the consumption of light trigger is the 5~10% of light-cured resin weight, and the consumption of levelling agent is the light-cured resin
The 1.0~2.5% of weight.The scratch-resistant layer 101 to be formed is coated with such light curing nano insulating moulding coating, its thickness general control
At 2.5~5.0 microns, it is preferably controlled within 3.5~4.5 micrometer ranges.
Either common photocureable coating, still adds the light curing nano insulating moulding coating of nano dispersion fluid, its institute
The light-cured resin used can be the combination of following one or more:Propylene glycol diacrylate, the third oxidation neopentyl glycol
Diacrylate olefin(e) acid ester, tripropylene glycol diacrylate, ethoxy ethoxy ethoxy acrylate, the propylene of hexylene glycol two
Acid esters, hexanediyl ester, the acrylate of dipentaerythrite five/six, aliphatic urethane diacrylate, adoption ammonia
The acrylate of ester six;The combination of used light trigger concretely following one or more:2- hydroxy-2-methyl -1- benzene
Benzylacetone, 1- hydroxy cyclohexylphenyl alkyl Benzophenone, 2- hydroxyls -4 '-(2- hydroxy ethoxies) -2- methyl phenyl ketones, 4- hydroxyls-hexichol first
Ketone, (2,4,6- trimethylbenzoyl) diphenyl phosphine oxide, the consumption of light trigger be light-cured resin weight 4~
10%, and, short purple light initiator and long ultraviolet initiator are applied in combination, and can improve the utilization ratio of uv energy, it is ensured that
Deep cure.
In addition, the UV absorbers are the 35%~55% of the pressure sensitive adhesive weight, the UV absorbers bag
The UV absorbers of Benzophenone class, benzotriazole or oxybenzene triazines are included, prioritizing selection is 0.5g/m when usage amount2Shi Qi
360nm uv transmittances are less than 0.5% ultraviolet absorber, particularly the oxybenzene triazines ultraviolet light with high-weatherability energy
Absorbent;The pressure sensitive adhesive is one-component esters of acrylic acid or two-component acrylicester class;The solvent is ethyl acetate, fourth
Ketone, isobutanol, toluene, the one or more of propylene glycol methyl ether acetate or DAA, preferably:Ethyl acetate with it is above-mentioned other
Material is as mixed solvent, and ethyl acetate accounts for the percentage composition of solvent gross weight and is not less than 85% (it is total that other solvents account for solvent
15%) anharmonic ratio example is less than.
Ultraviolet-resistant composite bed 103 and ultraviolet-resistant install the thickness general control of glue-line 105 at 4.5~12.5 microns,
It is preferably controlled within 5.5~8.5 micrometer ranges, can so avoids low peel strength and thickness caused by thickness is too thin too thick
The coating defects of generation.So, it is ensured that the ultraviolet-resistant composite bed 103 and ultraviolet-resistant install the UVA ripples of glue-line 105
Section mean transmissivity is less than 1%.
According to above technical thought and requirement, with reference to step in detail below can be prepared by with high ultraviolet-resistant performance every
Hotting mask:
Step one, the optical grade poly terephthalic acid second that the internal haze through corona or precoating treatment is less than 0.3% is chosen
Diol ester (PET) film is used as basement membrane;
Step 2, the preparation of ultraviolet-resistant composite bed:With nick coating method by UV absorption coatings in step one
Any one side of second basement membrane selected after first any one side of basement membrane of selection, coated and dried with step one is compounded to form
UV absorption composite membrane;
Step 3, ultraviolet-resistant installs the preparation of glue-line:With nick coating method by UV absorption coatings in step
Silicone oil face after two untapped base film surfaces, coated and dried with mould release membrance is combined;
Step 4, the preparation of scratch-resistant layer:Photocureable coating or light curing nano insulating moulding coating are coated on into step 3 does not make
After base film surface, drying and nitrogen protect oxygen-free environment under ultraviolet light polymerization formation scratch-resistant layer.
Technical solution of the present invention is further elaborated with instantiation below, so that it is more readily understood and grasped.Need
It is noted that be exemplified below only be technical solution of the present invention prominent example, it is all take equivalent or equivalent transformation and
The technical scheme of formation, all falls within the scope of protection of present invention.
【Embodiment 1】
1st, dispensing
1.1 UV absorption coating A preparation:First weigh 4.20 parts of ultraviolet absorber hydroxyl phenol triazines, 28.45 parts
Cytec one-components acrylate pressure sensitive adhesive 1159 (45% solid content), 59.46 parts of ethyl acetate, 3.32 parts of butanone, 4.57 parts of dipropyls
Keto-alcohol, is then mixed 45 minutes at room temperature.
It is prepared by 1.2 photocureable coating:Weigh 20.10 parts of five/six acrylate of bipentaerythrite, hexanediyl ester
3.54 parts, 74.96 parts of ethyl acetate, 0.83 part of light trigger " 1- hydroxy cyclohexylphenyl alkyl Benzophenone ", light trigger " (2,4,6-
Trimethylbenzoyl) diphenyl phosphine oxide " 0.12 part, levelling agent " Tego Rad2100 response types silicone acrylates "
0.45 part, mix 30 minutes obtained photocureable coating.
2nd, it is film-made.The thermal isolation film of the high ultraviolet-resistant of high durable fine definition is prepared according to the following steps:
Step one, it is 23 microns and the two-sided optical grade polyethylene terephthalate through precoating treatment to choose thickness
(PET) film is as basement membrane 102 and basement membrane 104, and internal haze is less than 0.3%.
Step 2, the preparation of ultraviolet-resistant composite bed 103, with nick coating method by UV absorption masking liquid A with 20 ms/min
Speed be coated on any one side of basement membrane 104, coating obtains 5.8 microns of thick coatings after 100 degree of oven for drying, finally and base
Film 102 is combined.
Step 3, ultraviolet-resistant install glue-line 105 preparation, with nick coating method by UV absorption masking liquid A with 20 meters/
The speed divided is coated on the surface of the untapped basement membrane 104 of step 2, and coating obtains 5.8 microns of thickness after 100 degree of oven for drying
Coating, be finally combined with the silicone oil face of mould release membrance 106.Selected mould release membrance 106 scribbles silicon for 23 microns of thick one sides purchased in market
The PET film of oil, the gram inch of off-type force 15.
Photocuring scratch resistance resin masking liquid is coated on step by step 4, the preparation of scratch-resistant layer 101 with 25 ms/min of speed
The surface of rapid three untapped basement membrane 102, the ultraviolet light polymerization after 80 degree of oven for drying and under the oxygen-free environment that nitrogen is protected
The 2 microns thick dry film of coating formation.
Finished product made from embodiment 1 is sample 1, and after testing, the UVA wave bands ultraviolet permeability 0.92% of sample 1 (is shown in Table 1
And Fig. 2), mist degree 0.07% (is shown in Table 1), and in 100mW/cm2Ultraviolet light after 7 hours performance without significant change (see Fig. 3),
Realize the combination properties such as fine definition, high ultraviolet-resistant and high durable.Moreover, its scratch-resistant layer is in load 500g double rubs
100 times without obvious cut, adhesive force is 0 grade.
【Embodiment 2】
1st, dispensing
1.1 UV absorption coating A preparation:It is same as Example 1.
It is prepared by 1.2 light curing nano insulating moulding coatings:Weigh 71.2 parts of nano dispersion fluid, the acrylate of aliphatic polyurethane six
25.12,1.76 parts of ethyl acetate, 0.94 part of light trigger " 1- hydroxy cyclohexylphenyl alkyl Benzophenone ", light trigger " (2,4,6- tri-
Methyl benzoyl) diphenyl phosphine oxide " 0.50 part, levelling agent " Tego Rad2100 response types silicone acrylates "
0.30 part, 0.18 part of levelling agent " Tego Rad2300 response types silicone acrylates " mixes 45 minutes obtained light
Curing nano insulating moulding coating.The nano dispersion fluid includes:8.37 parts of dispersant, 73.47 parts of ethyl acetate, a diameter of 50nm's
18.16 parts of doped tungsten oxide nano material.
2nd, it is film-made.The step of preparation method and flow of this implementation is with embodiment 1 one, step 2 and step 3 are identical, no
Same is that step 4 is to substitute photocureable coating with light curing nano insulating moulding coating, specific as follows:
Light curing nano insulating moulding coating is coated on step by step 4, the preparation of scratch-resistant layer 101 with 20 ms/min of speed
The three untapped surfaces of basement membrane 102, after 80 degree of oven for drying and under the oxygen-free environment that nitrogen is protected described in ultraviolet light polymerization
The 2 microns thick dry film of coating formation.
Finished product made from embodiment 2 is sample 2, and its performance is shown in Table 1 and Fig. 2.
【Embodiment 3】
The preparation method and flow of embodiment 3 are identical with described case study on implementation 2, the difference is that the basement membrane of case study on implementation 2
104, which are averaged the primary colors film that visible light transmissivity is 15%, substitutes.Obtained finished product is sample 3, and its performance is shown in Table 1, Fig. 2 and figure
4。
【Comparative example 1】
It is prepared by UV absorption coating B:First weigh 4.20 parts of ultraviolet absorber hydroxyl phenol triazines, 28.45 parts of Cytec single groups
Then part acrylate pressure sensitive adhesive 1159 (45% solid content), 67.35 parts of ethyl acetate mix 45 minutes at room temperature.
The UV absorption coating B and UV absorption coating A difference is that UV absorption coating B does not add dipropyl
Keto-alcohol and butanone, so cause masking liquid compatibility low, and then viscosity is high.Film (the ratio being coated with the UV absorption coating B
Compared with sample 1) produce serious coating twill and rough surface, it is impossible to meet optical film requirement (its performance parameter is shown in Table 1, under
Together).
【Comparative example 2】
It is prepared by UV absorption coating C:First weigh 1.26 parts of ultraviolet absorber hydroxyl phenol triazines, 44.97 parts of Cytec single groups
Then part acrylate pressure sensitive adhesive 1159 (45% solid content), 53.77 parts of ethyl acetate mix 45 minutes at room temperature.
Ultraviolet absorber in the UV absorption coating C is the 30% of the UV absorption coating B, UV absorption coating
The matching of C solution is significantly improved, similar with UV absorption coating A.It is with the UV absorption coating C films being coated with
Comparative sample 2.
【Comparative example 3】
It is prepared by UV absorption coating D:First weigh 4.20 parts of ultraviolet absorber hydroxyl phenol triazines, 28.45 parts of Changxing single groups
Part acrylate pressure sensitive adhesive 7052 (45% solid content), 59.46 parts of ethyl acetate, 3.32 parts of isobutyl ketones, 4.57 parts of DAAs, so
Mix 45 minutes at room temperature afterwards.
The UV absorption coating D is that one-component pressure sensitive adhesive is different from the difference of the UV absorption coating A, now, purple
Outer absorbing coating C compatibility is destroyed completely, and solution seriously sends out mist in itself.The film being coated with the UV absorption coating D
For comparative sample 3.
Table 1:Embodiment and comparative example film performance comparison
Claims (12)
1. the thermal isolation film with high ultraviolet-resistant performance, the thermal isolation film is a kind of composite membrane, and section has layer structure, its feature
It is:Layered structure successively include scratch-resistant layer (101), basement membrane (102), ultraviolet-resistant composite bed (103), basement membrane (104),
Ultraviolet-resistant installs glue-line (105) and mould release membrance (106).
2. the thermal isolation film according to claim 1 with high ultraviolet-resistant performance, it is characterised in that:The scratch-resistant layer
(101) thickness is 1.5~5.0 microns, and the thickness of two layers of basement membrane (102,104) is 19~100 microns, and ultraviolet-resistant is combined
The thickness that layer (103) and ultraviolet-resistant install glue-line (105) is 4.5~12.5 microns, and the thickness of mould release membrance (106) is 19~25
Micron.
3. the thermal isolation film according to claim 2 with high ultraviolet-resistant performance, it is characterised in that:The scratch-resistant layer
(101) thickness is 1.8~4.5 microns, and the thickness of two layers of basement membrane (102,104) is 23~36 microns, and ultraviolet-resistant is combined
The thickness that layer (103) and ultraviolet-resistant install glue-line (105) is 5.5~8.5 microns.
4. the thermal isolation film according to claim 1 with high ultraviolet-resistant performance, it is characterised in that:Basement membrane (102 Hes
104) it is the transparent PET basement membrane through sided corona treatment or precoating treatment, primary colors PET basement membranes or plating metal PET basement membranes.
5. according to claim 4 with high ultraviolet-resistant performance thermal isolation film preparation method, it is characterised in that including with
Lower step:
Step one, the optical grade polyethylene terephthalate that the internal haze through corona or precoating treatment is less than 0.3% is chosen
Ester (PET) film is used as basement membrane;
Step 2, the preparation of ultraviolet-resistant composite bed:UV absorption coatings are selected in step one with nick coating method
First any one side of basement membrane, any one side of second basement membrane selected with step one after coated and dried is compounded to form ultraviolet
Absorbing composite membrane;
Step 3, ultraviolet-resistant installs the preparation of glue-line:With nick coating method by UV absorption coatings in step 2 not
Silicone oil face after the base film surface used, coated and dried with mould release membrance is combined;
Step 4, the preparation of scratch-resistant layer:Photocureable coating or light curing nano insulating moulding coating are coated on step 3 untapped
After base film surface, drying and nitrogen protect oxygen-free environment under ultraviolet light polymerization formation scratch-resistant layer.
6. there is the preparation method of the thermal isolation film of high ultraviolet-resistant performance according to claim 5, it is characterised in that:Step 2
Among step 3, the UV absorption coating at least includes UV absorbers, pressure sensitive adhesive and solvent, the UV Absorption
The consumption of agent is 35%~55Wt% of pressure sensitive adhesive, and the pressure sensitive adhesive is one-component esters of acrylic acid or two-component acrylicester class
Pressure sensitive adhesive.
7. there is the preparation method of the thermal isolation film of high ultraviolet-resistant performance according to claim 6, it is characterised in that:The purple
Outer light absorber is the UV absorbers of Benzophenone class, benzotriazole or oxybenzene triazines, when usage amount is 0.5g/m2
When, its 360nm uv transmittance is less than 0.5%.
8. there is the preparation method of the thermal isolation film of high ultraviolet-resistant performance according to claim 6, it is characterised in that:It is described molten
Agent is the one or more of ethyl acetate, butanone, isobutanol, toluene, propylene glycol methyl ether acetate or DAA;When described molten
When agent includes ethyl acetate, the percentage composition that ethyl acetate accounts for solvent gross weight is not less than 85%.
9. there is the preparation method of the thermal isolation film of high ultraviolet-resistant performance according to claim 5, it is characterised in that:Step 4
Central, photocureable coating or the light curing nano insulating moulding coating at least includes light-cured resin and auxiliary agent;The photocuring tree
Fat includes difunctional light-cured resin and/or six functional groups light-cured resin, and difunctional light-cured resin accounts for the light and consolidated
Change the 0~20% of resin total amount, six functional groups light-cured resin accounts for the 80~100% of the light-cured resin total amount;It is described to help
Agent include light trigger, levelling agent and retarder thinner, wherein, the light trigger be the light-cured resin weight 4~
10%, the levelling agent is the 1.0~2.5% of the light-cured resin weight.
10. there is the preparation method of the thermal isolation film of high ultraviolet-resistant performance according to claim 9, it is characterised in that:It is described
Light curing nano insulating moulding coating includes nano dispersion fluid, light-cured resin and auxiliary agent, and the nano dispersion fluid at least includes nanometer
Material and dispersant;Wherein, the nano material from particle diameter for 30~80nm doped tungsten oxide or indium tin oxide or
Lanthanum hexaboride, the dispersant is the 50~120% of the nano material weight.
11. there is the preparation method of the thermal isolation film of high ultraviolet-resistant performance according to claim 9, it is characterised in that:It is described
Light-cured resin is following one or more combinations:Propylene glycol diacrylate, the third oxidation neopentylglycol diacrylate
Olefin(e) acid ester, tripropylene glycol diacrylate, ethoxy ethoxy ethoxy acrylate, hexanediyl ester, oneself two
Alcohol diacrylate, the acrylate of dipentaerythrite five/six, aliphatic urethane diacrylate, the propylene of adoption urethane six
Acid esters.
12. there is the preparation method of the thermal isolation film of high ultraviolet-resistant performance according to claim 9, it is characterised in that:It is described
Light trigger is following one or more combinations:2- hydroxy-2-methyl -1- phenylacetones, 1- hydroxy cyclohexylphenyl alkyl Benzophenone,
2- hydroxyls -4 '-(2- hydroxy ethoxies) -2- methyl phenyl ketones, 4- hydroxy benzophenones and (2,4,6- trimethylbenzoyl) two
Phenyl phosphine oxide.
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