CN102643037A - Method for preparing functionalized EVA (Ethylene Vinyl Acetate) thin film - Google Patents
Method for preparing functionalized EVA (Ethylene Vinyl Acetate) thin film Download PDFInfo
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- CN102643037A CN102643037A CN2012101064177A CN201210106417A CN102643037A CN 102643037 A CN102643037 A CN 102643037A CN 2012101064177 A CN2012101064177 A CN 2012101064177A CN 201210106417 A CN201210106417 A CN 201210106417A CN 102643037 A CN102643037 A CN 102643037A
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Abstract
The invention discloses a method for preparing a functionalized EVA (Ethylene Vinyl Acetate) thin film. The method comprises the following step of: uniformly coating inorganic nano-oxide slurry and nano-cerium-doped antimony tin oxide slurry on an EVA thin film. According to the method, the production process of the nano-cerium-doped antimony tin oxide/EVA thin film can be continuous and can be applicable to large, medium and small-sized enterprises. The functionalized EVA thin film prepared by the method has a relatively-high ultraviolet and infrared shielding rate and a high transmittance of visible light.
Description
Technical field
The present invention relates to a kind of preparation method of functionalization eva film.
Background technology
In order to improve the solar photoelectric transformation efficiency; Prevent that the inboard temperature of building doors and windows and window glass for vehicle from rising, reduce indoor electricity consumption and consume the in-vehicle power energy with reducing; Usually adopt Low-e glass, coated glass and doubling glass etc.; Chinese patent ZL200510031338.4 prepares conductive film with the tin-antiomony oxide that controlled precipitation prepares rare earth doped (containing cerium) zinc; Chinese patent CN00138041.9 discloses to be placed between two PVB films with PET (polyethyleneterephthalate) low-radiation film and has formed with glassy bond; Chinese patent CN1898174B and CN101514083A disclose with ITO and ATO and have coated white glass surface formation thermal isolation film; Disclosed Indium sesquioxide, White tin oxide, weisspiessglanz, the Indium sesquioxide (ITO) of doped tin, White tin oxide (ATO), silicon oxide, aluminum oxide, zirconium white, quicklime, titanium oxide, titanium oxide or titanium oxynitrides, zinc oxide and the cerium oxide of antimony dopant such as Chinese patent CN101602580A, CN1898175B, CN1960953B, CN101243022A, CN102167520A, CN102251236A, CN101243023A, CN1989081B and CN101006023B, the use oxide compound is a kind of or mix two or more; The nano material that their common characteristic are to use has the infrared reflection effect.This mainly gives the credit to the transparent film of MOX or blended metal oxide formation, and after radiation acted on film, transparent film plasma resonance wavelength made incident wavelength not have at infrared region and sees through much smaller than incident wavelength, becomes high reflection; But to ultraviolet ray and visible light transmissivity; Therefore; Usually in the laminated glass intermediate film, add organic uv absorbers; The ultraviolet line of shielding 300-380nm when organic UV light absorber has absorbed ultraviolet Conversion of energy and is heat energy, impels the accelerated deterioration of laminated glass intermediate film; The laminated glass intermediate film adds man-hour in autoclave on the other hand, and organic uv absorbers may thermolysis and be damaged, and reduces its work-ing life; Meanwhile, the nanoparticle of infrared reflection effect, only only when its particle is nano-scale, the transparency of laminated glass intermediate film can be not influential; And the amount of the nano particle of the infrared reflection effect of in the laminated glass intermediate film, adding can not be greater than 2%; If greater than 2% o'clock, the thermal conductivity of intermediate film increases, therefore; Prior art shows: 1) shielding the ultrared while, visible light partly weakens; 2) because glass surface is coated with the blended metal oxide transparent film, long-term exposure is prone to cause deterioration by oxidation in air; 3) laminated glass intermediate film organic uv absorbers though shielded ultraviolet ray, is a heat energy owing to absorb ultraviolet Conversion of energy, has impelled the aging acceleration of laminated glass intermediate coat.
Summary of the invention
The preparation method who the purpose of this invention is to provide a kind of functionalization eva film
The technical scheme that the present invention taked is:
A kind of preparation method of functionalization eva film comprises the steps:
The mixed slurry that the slurry of the slurry of even coating inorganic nanometer oxide and nanometer cerium doped stannum oxide antimony is formed on eva film.
A kind of preparation method of functionalization eva film comprises the steps:
In the EVA pellet, add the powder of inorganic nanometer oxide and the powder of nanometer cerium doped stannum oxide antimony, the close white silk-curtain coating of thermoplastic is processed the functionalization eva film.
The slurry total thickness that is coated with on the eva film is 30-100 μ m.
In the described nanometer cerium doped stannum oxide antimony, the doping of cerium is the 1-20% of tin-antiomony oxide weight.
Described inorganic nanometer oxide comprises nano yttrium oxide, nano silicon, nano aluminium oxide, nano zircite, nano calcium oxide, nano titanium oxide, nano zine oxide, nano-cerium oxide.
The grain diameter of described nanometer cerium doped stannum oxide antimony is 30-90nm.
The grain diameter of described inorganic nanometer oxide is 30-90nm.
The solid content of described mixed slurry is 10-30%.
The invention has the beneficial effects as follows: (1) but the production technique serialization of functionalization eva film of the present invention, production technique can be suitable for large, medium and small type enterprise.
(2) eva film of the functionalization of the present invention's preparation is higher to UV-light and ultrared shielding, and makes that the transmitance of visible light is high.
Embodiment
Below in conjunction with specific embodiment the present invention is done further explanation:
In the present patent application, the grain diameter of described nanometer cerium doped stannum oxide antimony is 30-90nm;
Described inorganic nanometer oxide comprises nano yttrium oxide, nano silicon, nano aluminium oxide, nano zircite, nano calcium oxide, nano titanium oxide, nano zine oxide, nano-cerium oxide.
The grain diameter of described inorganic nanometer oxide is 30-90nm.
Among the following embodiment, the producer of described toughened glass is that space special glass ltd is thought in Wenzhou.
The manufacturer of described float glass is Guangzhou Long Yi Glass Co., Ltd..
Described Low-E glass originates from Shanghai difficult to understand blue cladding glass ltd.
Embodiment 1:
The slurry of nanometer cerium doped stannum oxide antimony and the slurry of nano yttrium oxide (mass ratio is 1:1) are mixed, and the solid content of mixed slurry is 16.5%, and in the nanometer cerium doped stannum oxide, the adulterated amount of cerium is 5% of a tin-antiomony oxide weight; Through on the spreadometer mixed slurry being coated on EVA (0.76mm) film uniformly, the wet glue thickness of coating is 50 μ m, the oven dry film forming; Film is clipped between two float glass plate (thickness is 3mm); Thereby obtain a kind of sandwich glass; Then sandwich glass being placed air pressure is the sealed silicon poly-bag degassing 20 minutes of 0.06MPa, and silica gel bag that again will this built-in sandwich glass is inserted and dried by the fire in 135 ℃ of baking ovens, keeps 20 minutes; Glass and intermediate coat are bonded together; It is the ultraviolet 98.8% of 300-380nm that the laminated glass that makes thus can shield wavelength, and the shielding wavelength is the ultrared 50% of 780-2500nm, and visible light transmissivity is 83%.
Embodiment 2:
Nanometer cerium doped stannum oxide antimony slurry and nano silicon oxide slurry (mass ratio is 10:1) are mixed, and solid content of slurry is 16.5%, and the doping of cerium is 8% of a tin-antiomony oxide weight; Through spreadometer slurry is coated on EVA (0.76mm) film uniformly, the wet glue thickness of coating is 100 μ m, the oven dry film forming; Film is clipped between two float glass plate (thickness is 3mm), thereby obtains a kind of sandwich glass, then sandwich glass being placed air pressure is the sealed silicon poly-bag degassing 20 minutes of 0.06MPa; Silica gel bag that again will this built-in sandwich glass is inserted in 135 ℃ of vacuum drying ovens of baking; Kept 20 minutes, glass and intermediate coat are bonded together, ultraviolet 98.9% of the laminated glass maskable 300-380nm that makes thus; Shielding 780-2500nm's is ultrared 61%, and visible light transmissivity is 75%.
Embodiment 3:
Nanometer cerium doped stannum oxide antimony slurry and nano oxidized aluminum slurry (mass ratio is 5:1) are mixed, and solid content of slurry is 18.5%, and the doping of nanometer cerium is 10% of a tin-antiomony oxide weight; Through spreadometer slurry is coated on EVA (0.38mm) film uniformly, the wet glue thickness of coating is 50 μ m, the oven dry film forming; Film is clipped between two float glass plate (thickness of sheet glass is 3mm); Thereby obtain a kind of sandwich glass; Then sandwich glass being placed air pressure is the sealed silicon poly-bag degassing 20 minutes of 0.04MPa, and silica gel bag that again will this built-in sandwich glass is inserted in 135 ℃ of baking ovens, keeps 20 minutes; Glass and intermediate coat are bonded together; The laminated glass maskable 300-380nm's that makes thus is ultraviolet 98.6%, and shielding 780-2500nm's is ultrared 55%, and visible light transmissivity is 81%.
Embodiment 4:
The slurry of nano-doped tin oxide antimony and the slurry of nano zircite (mass ratio is 8:1) are mixed, and solid content of slurry is 30%, and the doping of nanometer cerium is 15% of a tin-antiomony oxide weight; Through spreadometer slurry is coated on EVA (0.76mm) film uniformly, the slurry thickness of coating is 100 μ m, the oven dry film forming; Film is clipped between two float glass plate (thickness is 3mm), thereby obtains a kind of sandwich glass, then sandwich glass being placed air pressure is the sealed silicon poly-bag degassing 20 minutes of 0.06MPa; Silica gel bag that again will this built-in sandwich glass is inserted in 135 ℃ of baking ovens of baking; Kept 20 minutes, glass and intermediate coat are bonded together, the laminated glass that makes thus can shield ultraviolet 98.4% of 300-380nm; Shielding 780-2500nm's is ultrared 71%, and visible light transmissivity is 72%.
Embodiment 5:
The slurry of nanometer cerium doped stannum oxide antimony and the slurry of nano-titanium oxide (mass ratio is 4:1) are mixed, and solid content of slurry is 18.5%, and the doping of nanometer cerium is 20% of a tin-antiomony oxide weight; Through spreadometer slurry is coated on EVA (0.38mm) film uniformly, the wet glue thickness of coating is 50 μ m, the oven dry film forming; Film is clipped between two float glass plate (thickness is 3mm), thereby obtains a kind of sandwich glass, then sandwich glass being placed air pressure is the sealed silicon poly-bag degassing 20 minutes of 0.06MPa; Silica gel bag that again will this built-in sandwich glass is inserted in 135 ℃ of baking ovens of baking; Kept 20 minutes, glass and intermediate coat are bonded together, the laminated glass that makes thus can shield the ultraviolet ray 98.0% of 300-380nm; Shielding 780-2500nm's is infrared by 43%, visible light transmissivity 84%.
Embodiment 6:
The mixed powder of the composition of the powder of interpolation nanometer cerium doped stannum oxide antimony and nanometer Zinc oxide powder (mass ratio of two kinds of powders is 1:1) in the EVA pellet, in the nanometer cerium doped stannum oxide antimony, the doping of nanometer cerium is 1% of a tin-antiomony oxide weight; The total mass of two kinds of powders is 1.5% of EVA pellets;
Compound melting mixing-curtain coating is processed eva film (0.76mm); Film is clipped between two armourplate glasses (thickness is 3mm); Thereby obtain a kind of sandwich glass; Then sandwich glass being placed air pressure is the sealed silicon poly-bag degassing 20 minutes of 0.06MPa, and silica gel bag that again will this built-in sandwich glass is inserted and dried by the fire in 135 ℃ of baking ovens, keeps 20 minutes; Glass and intermediate coat are bonded together, the laminated glass that makes thus.The ultraviolet 97.7% of 300-380nm can be shielded, the ultrared 50% of 780-2500nm can be shielded, visible light transmissivity 82%.
Embodiment 7:
1) the powder three with EVA pellet, the powder that adds nanometer cerium doped stannum oxide antimony, nano-cerium oxide mixes (mass ratio of two kinds of powders is 1:1), and in the nanometer cerium doped stannum oxide antimony, the doping of nanometer cerium is 10% of a tin-antiomony oxide weight; The total mass of two kinds of powders is 1.5% of EVA pellets; Mixture melting mixing-curtain coating is processed eva film (0.76mm); This film covering is fitted on the toughened glass (thickness of armourplate glass is 3mm);
2) with the slurry of nano-doped tin oxide antimony, its solid content is 30%, and the doping of cerium is 8% of a tin-antiomony oxide weight; Through spreadometer slurry is coated on fitting on the eva film on the toughened glass in the step 1) uniformly, the slurry thickness of coating is 50 μ m, and the oven dry film forming covers one deck armourplate glass (thickness is 3mm) again on this film;
3) will going up the sandwich glass that makes of step then, to place air pressure be the sealed silicon poly-bag degassing 20 minutes of 0.06MPa; Silica gel bag that again will this built-in sandwich glass is inserted in 135 ℃ of baking ovens of baking; Kept 20 minutes, glass and intermediate coat are bonded together, the laminated glass that makes thus can shield ultraviolet 97.1% of 300-380nm; Can shield the ultrared 58% of 780-2500nm, visible light transmissivity 79%.
Embodiment 8:
The powder of EVA pellet, nanometer cerium doped stannum oxide antimony, the powder three of nano yttrium oxide are mixed (quality of two kinds of powders equates), and in nanometer cerium doped stannum oxide antimony, the doping of nanometer cerium is 20% of a tin-antiomony oxide weight; The quality of two kinds of powders be 1.5% of EVA pellet mass; Mixture melting mixing-curtain coating is processed eva film (0.76mm); Film is clipped between two Low-E sheet glass (thickness of sheet glass is 3mm); Thereby obtain a kind of sandwich glass; Then sandwich glass being placed air pressure is the sealed silicon poly-bag degassing 20 minutes of 0.06MPa, and silica gel bag that again will this built-in sandwich glass is inserted and dried by the fire in 135 ℃ of baking ovens, keeps 20 minutes; Glass and intermediate coat are bonded together; The laminated glass that makes thus can shield the ultraviolet 97.2% of 300-380nm, can shield the ultrared 71% of 780-2500nm, visible light transmissivity 72%.
Embodiment 9:
Powder, the nano-titanium oxide powder three of EVA pellet, nanometer cerium doped stannum oxide antimony are mixed (quality of two kinds of powders equates), in nanometer cerium doped stannum oxide antimony, the doping of nanometer cerium is 15% of a tin-antiomony oxide weight; The quality sum of two kinds of powders is 1.5% of EVA pellets; Mixture melting mixing-curtain coating is processed eva film (0.38mm); This film is clipped between the two-layer Low-E sheet glass (thickness of sheet glass is 3mm); Thereby obtain a kind of sandwich glass; Then sandwich glass being placed air pressure is the sealed silicon poly-bag degassing 20 minutes of 0.06MPa, and silica gel bag that again will this built-in sandwich glass is inserted and dried by the fire in 135 ℃ of baking ovens, keeps 20 minutes; Glass and intermediate coat are bonded together; The laminated glass that makes thus can shield the ultraviolet 98.5% of 300-380nm, can shield the ultrared 43% of 780-2500nm, and makes visible light transmissivity 83%.
Embodiment 10:
The mixed powder that the EVA pellet is formed with the powder of nanometer cerium doped stannum oxide antimony and the powder of nano aluminium oxide (powder of nanometer cerium doped stannum oxide antimony is 2:1 with the mass ratio of the powder of nano aluminium oxide) mixes mutually; In nanometer cerium doped stannum oxide antimony, the doping of nanometer cerium is 3% of a tin-antiomony oxide weight; The quality of two kinds of powders be 1.5% of EVA pellet; This mixture melting mixing-curtain coating is processed eva film (0.76mm); This film is clipped between two Low-E sheet glass (thickness of sheet glass is 3mm); Thereby obtain a kind of sandwich glass; Then sandwich glass being placed air pressure is the sealed silicon poly-bag degassing 20 minutes of 0.06MPa, and silica gel bag that again will this built-in sandwich glass is inserted and dried by the fire in 135 ℃ of baking ovens, keeps 20 minutes; Glass and intermediate coat are bonded together; The laminated glass that makes thus can shield the ultraviolet 99.0% of 300-380nm, can shield the ultrared 57% of 780-2500nm, and make that the transmitance of visible light is 80%.
Embodiment 11:
Powder, nano calcium oxide powder (powder of nanometer cerium doped stannum oxide antimony is 10:1 with the powder quality of nano calcium oxide ratio) at EVA pellet, nanometer cerium doped stannum oxide antimony mix; In nanometer cerium doped stannum oxide antimony, the doping of nanometer cerium is 17% of a tin-antiomony oxide weight; The quality of two kinds of powders be 1.5% of EVA pellet; Said mixture melting mixing-curtain coating is processed eva film (0.76mm); Film is clipped between two Low-E sheet glass (thickness of sheet glass is 3mm); Thereby obtain a kind of sandwich glass; Then sandwich glass being placed air pressure is the sealed silicon poly-bag degassing 20 minutes of 0.06MPa, and silica gel bag that again will this built-in sandwich glass is inserted and dried by the fire in 135 ℃ of baking ovens, keeps 20 minutes; Glass and intermediate coat are bonded together; The laminated glass that makes thus can shield the ultraviolet 98.6% of 300-380nm, can shield the ultrared 57% of 780-2500nm, and makes visible light transmissivity 82%.
Claims (8)
1. the preparation method of a functionalization eva film is characterized in that: comprise the steps:
The mixed slurry that the slurry of the slurry of even coating inorganic nanometer oxide and nanometer cerium doped stannum oxide antimony is formed on eva film.
2. the preparation method of a functionalization eva film is characterized in that: comprise the steps:
In the EVA pellet, add the powder of inorganic nanometer oxide and the powder of nanometer cerium doped stannum oxide antimony, the close white silk-curtain coating of thermoplastic is processed the functionalization eva film.
3. the preparation method of a kind of functionalization eva film according to claim 1 is characterized in that: the slurry total thickness that is coated with on the eva film is 30-100 μ m.
4. the preparation method of a kind of functionalization eva film according to claim 1 is characterized in that: in the described nanometer cerium doped stannum oxide antimony, the doping of cerium is the 1-20% of tin-antiomony oxide weight.
5. the preparation method of a kind of functionalization eva film according to claim 1 and 2 is characterized in that: described inorganic nanometer oxide comprises nano yttrium oxide, nano silicon, nano aluminium oxide, nano zircite, nano calcium oxide, nano titanium oxide, nano zine oxide, nano-cerium oxide.
6. the preparation method of a kind of functionalization eva film according to claim 1 and 2 is characterized in that: the grain diameter of described nanometer cerium doped stannum oxide antimony is 30-90nm.
7. the preparation method of a kind of functionalization eva film according to claim 1 and 2 is characterized in that: the grain diameter of described inorganic nanometer oxide is 30-90nm.
8. the preparation method of a kind of functionalization eva film according to claim 1 is characterized in that: the solid content of described mixed slurry is 10-30%.
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