CN107286871B - A kind of packaging adhesive film material used for solar batteries - Google Patents
A kind of packaging adhesive film material used for solar batteries Download PDFInfo
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- CN107286871B CN107286871B CN201710424374.XA CN201710424374A CN107286871B CN 107286871 B CN107286871 B CN 107286871B CN 201710424374 A CN201710424374 A CN 201710424374A CN 107286871 B CN107286871 B CN 107286871B
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention discloses a kind of packaging adhesive film materials used for solar batteries, belong to optical function material technical field.The present invention is first by frerrous chloride, ferric nitrate and deionized water mixing, and ammonium hydroxide reaction is added dropwise, Magneto separate is added to the water to obtain dispersion liquid after obtaining solid, titanium sulfate is added in sulfuric acid solution again, sodium hydroxide solution and dispersion liquid is added, sediment is separated to obtain after ageing, with graphene, the mixed grindings such as micarex obtain anti-aging filler, by acrylic acid, simultaneously drying and crushing obtains mixture powder for the mixings such as maleic anhydride, then ethylene-vinyl acetate copolymer is crushed, after radiation treatment with anti-aging filler, the agitation and filtrations such as mixture powder, mixed with divinylbenzene etc. after filter residue and drying, film forming can obtain anti-aging packaging adhesive film used for solar batteries after extruding pelletization, packaging adhesive film adhesion strength used for solar batteries prepared by the present invention is high, it is not easy xanthochromia, destruction of the ultraviolet light to packaging adhesive film is effectively reduced, extend packaging adhesive film to use Service life.
Description
Technical field
The invention discloses a kind of packaging adhesive film materials used for solar batteries, belong to optical function material technical field.
Background technique
With the failure and more serious environmental problem of non-renewable energy resources, the solar energy as clean energy resource is by preceding
The concern and attention not having.Solar power generation (also known as photovoltaic power generation) is one of the main path for efficiently using solar energy, and
As the core component of solar power generation, the reliability of solar cell module directly determines the efficiency of solar power generation.?
In solar cell module, packaging adhesive film for solar cell is indispensable a part.
Solar battery is also known as solar chip or photocell, is that a kind of photoelectricity using the sunlight direct generation of electricity is partly led
Body thin slice, by illumination, so that it may instant output voltage and electric current.There are many type of solar battery, wherein the monocrystalline silicon sun
Can battery conversion efficiency highest, technology is also the most mature, and efficiency when large-scale production is 18%, raw in large-scale application and industry
Still occupy leading position in production, but since monocrystalline silicon cost price is high, it is highly difficult to be greatly lowered cost, in order to save silicon material
Material, has developed the substitute products of polysilicon membrane and amorphous silicon membrane as monocrystaline silicon solar cell.The polysilicon membrane sun
Energy battery is low in cost compared with monocrystaline silicon solar cell, will occupy leading position in solar battery market soon.
The characteristics of according to solar battery, encapsulating material must satisfy following condition: firstly, encapsulating material must have
There is sufficiently high light transmittance, to guarantee that the battery component after encapsulation has higher photoelectric conversion efficiency；Secondly, encapsulating material needs
There are good resistance to UV aging and photo and thermal stability, to meet the prolonged high-efficiency operation of battery；In addition, encapsulating material
Resistance to moisture permeability also to reach certain requirement, otherwise cell piece can also lose its photoelectric conversion energy under the erosion of steam
Power.The most encapsulating material of application is ethylene-vinyl acetate polymer (EVA) currently on the market, however EVA adhesive film is still deposited
In easy xanthochromia, the disadvantage of anti-ultraviolet ageing deficiency shortens the service life of packaging adhesive film, while adhesion strength is low, weather-proof
Property is bad.It is not easy to turn to be yellow it would therefore be highly desirable to find one kind, resistance to UV aging is good, while adhesion strength and weather resistance are good
Packaging adhesive film.
Summary of the invention
The technical problems to be solved by the invention: easily turning yellow for packaging adhesive film used at present, and anti-ultraviolet ageing is not
Foot, shortens the service life of packaging adhesive film, while adhesion strength is low, the bad defect of weatherability provides a kind of solar energy
Battery packaging adhesive film material.
In order to solve the above technical problems, the present invention is using technical solution as described below:
A kind of packaging adhesive film material used for solar batteries, according to parts by weight, comprising: 100~120 parts of ethyl vinyl acetate second
Alkene copolymer powder, 3~5 parts of emulsifiers, 2~4 parts of anionic surfactant, 50~60 parts of mixture powder, 10~15
Part anti-aging filler, 1~3 part of ESCALOL 567,2~4 parts of divinylbenzenes, 0.5~0.7 part it is anti-oxidant
Agent and 0.3~0.5 part of silane coupling agent；
It is characterized by: the ethylene-vinyl acetate copolymer powder be by after radiation treatment, radiation treatment
Step are as follows: weigh crushing in the ethylene-vinyl acetate copolymer addition pulverizer that vinyl acetate content is 5~15% and be placed on spoke
According in case, using β ray, 3~5min of radiation treatment is carried out under the conditions of 12~15kGy irradiation dose, obtains ethene-vinyl acetate
Copolymer powder.
The preparation step of the mixture powder are as follows: according to parts by weight, including 20~40 parts of methyl methacrylates,
120~150 parts of polypropylene and 40~60 parts of maleic anhydrides are added in mixer, and in revolving speed be 80~100r/min and temperature is
It is kneaded 20~30min under conditions of 120~130 DEG C, is put into baking oven after obtaining mixture, dry 6 at a temperature of 60~80 DEG C~
8h obtains dried object crushing, can obtain mixture powder.
The emulsifier is glycerin monostearate.
The anionic surfactant is neopelex.
The antioxidant is antioxidant 1010.
The silane coupling agent is Silane coupling reagent KH-570.
The anti-aging filler the preparation method comprises the following steps:
(1) 1:2:10 in mass ratio weighs frerrous chloride, ferric nitrate and deionized water respectively, and mixed liquor is obtained after mixing, is added
Heat is warming up to 85~90 DEG C to 2~4 times of 25% ammonium hydroxide of mass fraction of frerrous chloride quality are added dropwise after 50~60 DEG C after completion of dropwise addition,
It is cooled to room temperature after 40~60min of stirring, collects to obtain solid particle using magnetic separation technique, 1:10 in mass ratio is by solid
Grain is added to the water, and dispersion liquid is obtained after ultrasonic disperse；
(2) 1:5 in mass ratio weighs titanium sulfate and the mixing of 5% sulfuric acid solution of mass fraction respectively, is heated to 55~60 DEG C
3~5 times of dispersion liquids of 5% sodium hydroxide solution of quality mass fraction and titanium sulfate quality such as titanium sulfate are heated afterwards, are kept the temperature after stirring old
Change 12~14h；
(3) it is cooled to room temperature, is centrifugated after to be aged, collect sediment, it is dry after washing, dried object is obtained, by weight
Number meter chooses 70~80 parts of dried objects, 10~20 parts of graphenes, 3~5 parts of micarexes and 1~3 part of magnesia, mixing respectively
It is added in grinder and grinds afterwards, be sieved, obtain anti-aging filler.
The present invention is compared with other methods, and advantageous effects are:
(1) frerrous chloride, ferric nitrate are prepared into magnetic-particle by the present invention, are obtained with mixed grindings such as graphene, micarexes
Anti-aging filler adds in packaging adhesive film material, keeps the packaging adhesive film adhesion strength used for solar batteries of preparation high, is not easy Huang
Become, destruction of the ultraviolet light to packaging adhesive film can be effectively reduced, extend the service life of packaging adhesive film；
(2) ethylene-vinyl acetate copolymer crushes, and can improve between copolymer and anti-aging filler after radiation treatment
Interfacial force makes anti-aging filler be uniformly dispersed in the copolymer, and uses methyl methacrylate, polypropylene and maleic anhydride pair
Ethylene-vinyl acetate copolymer is modified, and improves the weather resistance and adhesion strength of ethylene-vinyl acetate copolymer；
(3) present invention can be formed under the action of ESCALOL 567 and cross-linker divinylbenzene
Strengthen crosslinking light initiation system, under radiation condition, anti-aging filler can be crosslinked rapidly with ethylene-vinyl acetate copolymer, be handed over
The tensile strength and heat aging performance of ethylene-vinyl acetate copolymer are improved after connection.
Specific embodiment
1:2:10 in mass ratio sequentially adds frerrous chloride, ferric nitrate and deionized water into three-necked flask respectively, stirring
Mixed liquor is obtained after mixing 15~20min, three-necked flask is put into water-bath, and it is 50~60 DEG C that bath temperature, which is arranged, to three
2~4 times of 25% ammonium hydroxide of mass fraction of frerrous chloride quality are added dropwise in mouth flask, control rate of addition is 1~3mL/min, is added dropwise same
When be stirred with 500~700r/min revolving speed, be warming up to 85~90 DEG C, 40~60min of insulated and stirred after completion of dropwise addition, stirring
After be cooled to room temperature, and collect to obtain solid particle using magnetic separation technique, solid particle is added to the water by 1:10 in mass ratio,
10~20min of ultrasonic disperse, obtains dispersion liquid under 100~120W power；1:5 in mass ratio weighs titanium sulfate and quality respectively
5% sulfuric acid solution of score is added in four-hole boiling flask, and after being stirred 10~15min, four-hole boiling flask is put into water-bath, heats up
5% sodium hydroxide solution of the quality such as titanium sulfate mass fraction and titanium sulfate matter is added dropwise simultaneously into 55~60 DEG C of backward four-hole boiling flasks
3~5 times of dispersion liquids are measured, control sodium hydroxide solution rate of addition is 2~4g/min, and control dispersant liquid drop acceleration is 7~9g/
Min is stirred 30~40min after completion of dropwise addition with 500~700r/min revolving speed, 12~14h of heat preservation ageing after stirring；To old
It is cooled to room temperature after change, and takes out the material in four-hole boiling flask, be centrifugated under 1000~1200r/min revolving speed, it is heavy to collect
Starch is put into baking oven after spending ion-cleaning 2~4 times, and dry 5~7h, obtains dried object, by weight at a temperature of 60~70 DEG C
Number meter chooses 70~80 parts of dried objects, 10~20 parts of graphenes, 3~5 parts of micarexes and 1~3 part of magnesia, mixing respectively
It is added in grinder afterwards and grinds 2~4h, cross 300~320 meshes, obtain anti-aging filler；According to parts by weight, respectively choose 20~
40 parts of methyl methacrylates, 120~150 parts of polypropylene and 40~60 parts of maleic anhydrides are added in mixer, are 80 in revolving speed
~100r/min and temperature are kneaded 20~30min under conditions of being 120~130 DEG C, are put into baking oven after obtaining mixture, 60~
Dry 6~8h at a temperature of 80 DEG C, obtains dried object and is added in pulverizer and crush, and crosses 100~120 meshes, obtains mixture powder；Claim
It takes the ethylene-vinyl acetate copolymer that 400~600g vinyl acetate content is 5~15% to be added in pulverizer to crush, smash it through
70~80 meshes are placed in irradiation box, using β ray, carried out under the conditions of 12~15kGy irradiation dose radiation treatment 3~
5min obtains ethylene-vinyl acetate copolymer powder；According to parts by weight, it is total that 100~120 parts of ethene-vinyl acetates are chosen respectively
Copolymer powder, 3~5 parts of glycerin monostearates, 2~4 parts of neopelexes, 50~60 parts of mixture powder, 10~
15 parts of anti-aging fillers, 1~3 part of ESCALOL 567,2~4 parts of divinylbenzenes, 0.5~0.7 part of antioxygen
Agent 1010 and 0.3~0.5 part Silane coupling reagent KH-570, adds twin-screw extrude after mixing, in 115~120 DEG C of temperature
Lower extruding pelletization is spent, the particle after granulation is placed in film-forming machine and is formed a film, control film thickness is 0.2~0.4mm, be can be obtained too
Positive energy battery packaging adhesive film material.
Example 1
1:2:10 in mass ratio sequentially adds frerrous chloride, ferric nitrate and deionized water into three-necked flask respectively, stirring
Mixed liquor is obtained after mixing 20min, three-necked flask is put into water-bath, and it is 60 DEG C that bath temperature, which is arranged, into three-necked flask
4 times of 25% ammonium hydroxide of mass fraction of frerrous chloride quality are added dropwise, control rate of addition is 3mL/min, is added dropwise and turns simultaneously with 700r/min
Speed is stirred, and 90 DEG C are warming up to after completion of dropwise addition, and insulated and stirred 60min is cooled to room temperature after stirring, and uses Magneto separate skill
Art collects to obtain solid particle, and solid particle is added to the water by 1:10 in mass ratio, the ultrasonic disperse 20min under 120W power,
Obtain dispersion liquid；1:5 in mass ratio, weighs titanium sulfate respectively and 5% sulfuric acid solution of mass fraction is added in four-hole boiling flask, and stirring is mixed
After closing 15min, four-hole boiling flask is put into water-bath, is warming up in 60 DEG C of backward four-hole boiling flasks while the quality such as titanium sulfate is added dropwise
5 times of dispersion liquids of 5% sodium hydroxide solution of mass fraction and titanium sulfate quality, control sodium hydroxide solution rate of addition are 4g/min,
Control dispersant liquid drop acceleration is 9g/min, is stirred 40min after completion of dropwise addition with 700r/min revolving speed, keeps the temperature after stirring old
Change 14h；It is cooled to room temperature after to be aged, and takes out the material in four-hole boiling flask, be centrifugated under 1200r/min revolving speed, received
Collect sediment, be put into baking oven after spending ion-cleaning 4 times, dry 7h, obtains dried object, in parts by weight at a temperature of 70 DEG C
Meter chooses 80 parts of dried objects, 20 parts of graphenes, 5 parts of micarexes and 3 parts of magnesia respectively, is added in grinder and grinds after mixing
4h crosses 320 meshes, obtains anti-aging filler；According to parts by weight, 40 parts of methyl methacrylates, 150 parts of polypropylene are chosen respectively
With 60 parts of maleic anhydrides, it is added in mixer, is kneaded 30min under conditions of revolving speed is 100r/min and temperature is 130 DEG C, obtains
It is put into baking oven after mixture, dry 8h at a temperature of 80 DEG C, obtains dried object and be added in pulverizer and crush, crossed 120 meshes, obtain
Mixture powder；It weighs and is crushed in the ethylene-vinyl acetate copolymer addition pulverizer that 600g vinyl acetate content is 15%, powder
80 meshes are crossed after broken to be placed in irradiation box, using β ray, radiation treatment 5min are carried out under the conditions of 15kGy irradiation dose, is obtained
Ethylene-vinyl acetate copolymer powder；According to parts by weight, 120 parts of ethylene-vinyl acetate copolymer powder, 5 parts are chosen respectively
Glycerin monostearate, 4 parts of neopelexes, 60 parts of mixture powder, 15 parts of anti-aging fillers, 3 parts of 2- hydroxyl -4-
Methoxy benzophenone, 4 parts of divinylbenzenes, 0.7 part of antioxidant 1010 and 0.5 part of Silane coupling reagent KH-570, after mixing
It adds twin-screw extrude, the particle after granulation is placed in film-forming machine and forms a film by extruding pelletization at a temperature of 120 DEG C, control
Film thickness is 0.4mm, and packaging adhesive film material used for solar batteries can be obtained.
Example 2
1:2:10 in mass ratio sequentially adds frerrous chloride, ferric nitrate and deionized water into three-necked flask respectively, stirring
Mixed liquor is obtained after mixing 15min, three-necked flask is put into water-bath, and it is 50 DEG C that bath temperature, which is arranged, into three-necked flask
2 times of 25% ammonium hydroxide of mass fraction of frerrous chloride quality are added dropwise, control rate of addition is 1mL/min, is added dropwise and turns simultaneously with 500r/min
Speed is stirred, and 85 DEG C are warming up to after completion of dropwise addition, and insulated and stirred 40min is cooled to room temperature after stirring, and uses Magneto separate skill
Art collects to obtain solid particle, and solid particle is added to the water by 1:10 in mass ratio, the ultrasonic disperse 10min under 100W power,
Obtain dispersion liquid；1:5 in mass ratio, weighs titanium sulfate respectively and 5% sulfuric acid solution of mass fraction is added in four-hole boiling flask, and stirring is mixed
After closing 10min, four-hole boiling flask is put into water-bath, is warming up in 55 DEG C of backward four-hole boiling flasks while the quality such as titanium sulfate is added dropwise
3 times of dispersion liquids of 5% sodium hydroxide solution of mass fraction and titanium sulfate quality, control sodium hydroxide solution rate of addition are 2g/min,
Control dispersant liquid drop acceleration is 7g/min, is stirred 30min after completion of dropwise addition with 500r/min revolving speed, keeps the temperature after stirring old
Change 12h；It is cooled to room temperature after to be aged, and takes out the material in four-hole boiling flask, be centrifugated under 1000r/min revolving speed, received
Collect sediment, be put into baking oven after spending ion-cleaning 2 times, dry 5h, obtains dried object, in parts by weight at a temperature of 60 DEG C
Meter chooses 70 parts of dried objects, 10 parts of graphenes, 3 parts of micarexes and 1 part of magnesia respectively, is added in grinder and grinds after mixing
2h crosses 300 meshes, obtains anti-aging filler；According to parts by weight, 20 parts of methyl methacrylates, 120 parts of polypropylene are chosen respectively
With 40 parts of maleic anhydrides, it is added in mixer, is kneaded 20min under conditions of revolving speed is 80r/min and temperature is 120 DEG C, obtains
It is put into baking oven after mixture, dry 6h at a temperature of 60 DEG C, obtains dried object and be added in pulverizer and crush, sieved with 100 mesh sieve, obtain
Mixture powder；It weighs and is crushed in the ethylene-vinyl acetate copolymer addition pulverizer that 400g vinyl acetate content is 5%, crushed
70 meshes are crossed afterwards to be placed in irradiation box, using β ray, radiation treatment 3min are carried out under the conditions of 12kGy irradiation dose, obtains second
Alkene-acetate ethylene copolymer powder；According to parts by weight, 100 parts of ethylene-vinyl acetate copolymer powder, 3 parts of lists are chosen respectively
Tristerin, 2 parts of neopelexes, 50 parts of mixture powder, 10 parts of anti-aging fillers, 1 part of 2- hydroxyl -4- first
Oxygroup benzophenone, 2 parts of divinylbenzenes, 0.5 part of antioxidant 1010 and 0.3 part of Silane coupling reagent KH-570 add after mixing
Enter in double screw extruder, the particle after granulation is placed in film-forming machine and forms a film by extruding pelletization at a temperature of 115 DEG C, controls film
With a thickness of 0.2mm, packaging adhesive film material used for solar batteries can be obtained.
Example 3
1:2:10 in mass ratio sequentially adds frerrous chloride, ferric nitrate and deionized water into three-necked flask respectively, stirring
Mixed liquor is obtained after mixing 17min, three-necked flask is put into water-bath, and it is 55 DEG C that bath temperature, which is arranged, into three-necked flask
3 times of 25% ammonium hydroxide of mass fraction of frerrous chloride quality are added dropwise, control rate of addition is 2mL/min, is added dropwise and turns simultaneously with 600r/min
Speed is stirred, and 87 DEG C are warming up to after completion of dropwise addition, and insulated and stirred 50min is cooled to room temperature after stirring, and uses Magneto separate skill
Art collects to obtain solid particle, and solid particle is added to the water by 1:10 in mass ratio, the ultrasonic disperse 15min under 110W power,
Obtain dispersion liquid；1:5 in mass ratio, weighs titanium sulfate respectively and 5% sulfuric acid solution of mass fraction is added in four-hole boiling flask, and stirring is mixed
After closing 12min, four-hole boiling flask is put into water-bath, is warming up in 57 DEG C of backward four-hole boiling flasks while the quality such as titanium sulfate is added dropwise
4 times of dispersion liquids of 5% sodium hydroxide solution of mass fraction and titanium sulfate quality, control sodium hydroxide solution rate of addition are 3g/min,
Control dispersant liquid drop acceleration is 8g/min, is stirred 35min after completion of dropwise addition with 600r/min revolving speed, keeps the temperature after stirring old
Change 13h；It is cooled to room temperature after to be aged, and takes out the material in four-hole boiling flask, be centrifugated under 1100r/min revolving speed, received
Collect sediment, be put into baking oven after spending ion-cleaning 3 times, dry 6h, obtains dried object, in parts by weight at a temperature of 65 DEG C
Meter chooses 75 parts of dried objects, 15 parts of graphenes, 4 parts of micarexes and 2 parts of magnesia respectively, is added in grinder and grinds after mixing
3h crosses 310 meshes, obtains anti-aging filler；According to parts by weight, 30 parts of methyl methacrylates, 140 parts of polypropylene are chosen respectively
With 50 parts of maleic anhydrides, it is added in mixer, is kneaded 25min under conditions of revolving speed is 90r/min and temperature is 125 DEG C, obtains
It is put into baking oven after mixture, dry 7h at a temperature of 70 DEG C, obtains dried object and be added in pulverizer and crush, crossed 110 meshes, obtain
Mixture powder；It weighs and is crushed in the ethylene-vinyl acetate copolymer addition pulverizer that 500g vinyl acetate content is 10%, powder
75 meshes are crossed after broken to be placed in irradiation box, using β ray, radiation treatment 4min are carried out under the conditions of 14kGy irradiation dose, is obtained
Ethylene-vinyl acetate copolymer powder；According to parts by weight, 110 parts of ethylene-vinyl acetate copolymer powder, 4 parts are chosen respectively
Glycerin monostearate, 3 parts of neopelexes, 55 parts of mixture powder, 12 parts of anti-aging fillers, 2 parts of 2- hydroxyl -4-
Methoxy benzophenone, 3 parts of divinylbenzenes, 0.6 part of antioxidant 1010 and 0.4 part of Silane coupling reagent KH-570, after mixing
It adds twin-screw extrude, the particle after granulation is placed in film-forming machine and forms a film by extruding pelletization at a temperature of 117 DEG C, control
Film thickness is 0.3mm, and packaging adhesive film material used for solar batteries can be obtained.
Reference examples: ethylene-vinyl acetate polymer
Packaging adhesive film material cutting prepared by example 1 to example 3 and reference examples is put into aging at sample of a size
In case, hot oxygen oxidation is carried out under 100 DEG C of degree, carried out the measurement of yellowness index at 5 days, 15 days and 30 days respectively.Measurement result
Such as table 1.
Table 1
| Yellowness index measurement | Example 1 | Example 2 | Example 3 | Reference examples |
| 5d | 0.015 | 0.017 | 0.014 | 0.051 |
| 15d | 0.021 | 0.019 | 0.020 | 0.064 |
| 30d | 0.03 | 0.028 | 0.029 | 0.078 |
By example 1 and the resulting packaging adhesive film material cutting of 3 reference examples of example at sample of a size, according to GB/
T2791-1995 carries out peel strength test, test result such as table 2.
Table 2
| Peel strength | Example 1 | Example 2 | Example 3 | Reference examples |
| Peel strength (N/cm) | 35 | 40 | 42 | 25 |
By Tables 1 and 2 it is found that packaging adhesive film material ageing-resistant performance used for solar batteries prepared by the present invention is good, it is not easy
Jaundice, and peel strength is high, meets the requirement of solar cell.
Claims (5)
1. a kind of packaging adhesive film material used for solar batteries, according to parts by weight, comprising: 100~120 parts of ethene-vinyl acetates
Copolymer powder, 3~5 parts of emulsifiers, 2~4 parts of anionic surfactant, 50~60 parts of mixture powder, 10~15 parts
Anti-aging filler, 1~3 part of ESCALOL 567,2~4 parts of divinylbenzenes, 0.5~0.7 part of antioxidant
With 0.3~0.5 part of silane coupling agent；
It is characterized by: the ethylene-vinyl acetate copolymer powder is by after radiation treatment, the step of radiation treatment
Are as follows: it weighs crushing in the ethylene-vinyl acetate copolymer addition pulverizer that vinyl acetate content is 5~15% and is placed on irradiation box
In, using β ray, 3~5min of radiation treatment is carried out under the conditions of 12~15kGy irradiation dose, obtains ethene-vinyl acetate copolymerization
Object powder；
The anti-aging filler the preparation method comprises the following steps:
(1) 1:2:10 in mass ratio weighs frerrous chloride, ferric nitrate and deionized water respectively, and mixed liquor is obtained after mixing, is heated to
2~4 times of 25% ammonium hydroxide of mass fraction of frerrous chloride quality are added dropwise after 50~60 DEG C, 85~90 DEG C are warming up to after completion of dropwise addition, stirring
It is cooled to room temperature after 40~60min, collects to obtain solid particle using magnetic separation technique, 1:10 in mass ratio adds solid particle
Enter in water, dispersion liquid is obtained after ultrasonic disperse；
(2) 1:5 in mass ratio weighs titanium sulfate and the mixing of 5% sulfuric acid solution of mass fraction respectively, adds after being heated to 55~60 DEG C
Enter 3~5 times of dispersion liquids of 5% sodium hydroxide solution of the quality such as titanium sulfate mass fraction and titanium sulfate quality, heat preservation ageing 12 after stirring
~14h；
(3) it is cooled to room temperature, is centrifugated after to be aged, collect sediment, it is dry after washing, dried object is obtained, in parts by weight
Meter chooses 70~80 parts of dried objects, 10~20 parts of graphenes, 3~5 parts of micarexes and 1~3 part of magnesia respectively, adds after mixing
Enter in grinder and grind, is sieved, obtains anti-aging filler；
The preparation step of the mixture powder are as follows: according to parts by weight, including 20~40 parts of methyl methacrylates, 120
~150 parts of polypropylene and 40~60 parts of maleic anhydrides are added in mixer, and in revolving speed be 80~100r/min and temperature is 120
It is kneaded 20~30min under conditions of~130 DEG C, is put into baking oven after obtaining mixture, dry 6~8h at a temperature of 60~80 DEG C,
It obtains dried object to crush, mixture powder can be obtained.
2. a kind of packaging adhesive film material used for solar batteries according to claim 1, it is characterised in that: the emulsifier
For glycerin monostearate.
3. a kind of packaging adhesive film material used for solar batteries according to claim 1, it is characterised in that: the anion
Type surfactant is neopelex.
4. a kind of packaging adhesive film material used for solar batteries according to claim 1, it is characterised in that: described is anti-oxidant
Agent is antioxidant 1010.
5. a kind of packaging adhesive film material used for solar batteries according to claim 1, it is characterised in that: the silane is even
Connection agent is Silane coupling reagent KH-570.
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| CN103923374A (en) * | 2014-03-28 | 2014-07-16 | 江苏斯威克新材料有限公司 | EVA (Ethylene Vinyl Acetate) glue film capable of reducing PID (Potential-Induced Degradation) phenomena of photovoltaic module, as well as preparation technology thereof |
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