CN104371183A - Solar cell backboard back membrane and preparation method thereof - Google Patents
Solar cell backboard back membrane and preparation method thereof Download PDFInfo
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- CN104371183A CN104371183A CN201410643447.0A CN201410643447A CN104371183A CN 104371183 A CN104371183 A CN 104371183A CN 201410643447 A CN201410643447 A CN 201410643447A CN 104371183 A CN104371183 A CN 104371183A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/204—Applications use in electrical or conductive gadgets use in solar cells
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a solar cell back membrane and a preparation method thereof. The solar cell back membrane comprises the following components in parts by weight: 50-60 parts of EVA, 10-20 parts of PP, 0.5-1 part of an antioxidant, 0.5-1 part of an auxiliary antioxidant, 0.5-1 part of a light stabilizer, 2-8 parts of organic tin dioctyl maleate, 3-7 parts of stearic acid, 1-6 parts of chlorinated paraffin, 3-6 parts of epoxy octyl stearate, 0.5-3 parts of calcium stearate, 0.8-2 parts of N-cyclohexyl ethanol amine, 2-8 parts of polycarbonate, 0.8-2 parts of ethanediamine and 1-5 parts of silicon dioxide. The preparation method of the solar cell back membrane comprises the following steps: adding all the components into a reaction kettle, stirring for reaction at a certain temperature and under the vacuum condition, cooling to a certain temperature, further stirring for carrying out reaction, then cooling to room temperature, then extruding pelletizing in a double-screw extruder, and finally extruding and carrying out membrane blowing by adopting a plastic membrane blowing machine. The solar cell back membrane provided by the invention has good mechanical and electrical properties and ageing resistance, and can be widely applied.
Description
Technical field
The invention belongs to sun energy battery material field, sky, be specifically related to a kind of solar battery back film and preparation method thereof.
Background technology
Solar cell backboard is the external member of protection solar cell module, by kind (PET system, the fluorine system of film; other) and it collocation element form, the pattern of protective layer unqualified and module, design; use occasion, purposes adapts, and has various structural style.In most cases, module manufacturer coordinates oneself product to specify required performance and the specification of backboard.Backboard manufacturer matches with it product required by incompatible design module manufacturer, but, the situation of Ye You module manufacturer specified design figure.Because solar cell is without through using for a long time, so require that it has excellent weather resistance weathering resistance, even if backboard is not aging under the physical environment of temperature, humidity change and cruelty yet.As the film meeting this condition, the practical PVF film just having brought into use fluorine system of solar cell.
But the PVF film supplier of backboard is limited to the E.I.Du Pont Company of the U.S., along with the expansion of demand, because supply is very tight, there is the problem can stablizing supply, urgent due to demand balance, also have price to be difficult to the problem declined.Further, having very large worry by discarded and the overload for the treatment of process to environment, as showing the solar cell module not having the impurity energy, is not optimal.In module manufacturer, also have and do not use PVF, grope the backboard adopted with weather resistance and weathering resistance.Particularly in Japan, module manufacturer and backboard manufacturer both sides are domestic may supply under use material, carrying out the exploitation of backboard, from using at the beginning of nineteen ninety long durability PET film to replace PVF, advancing the replacement to PET system backboard.Now, produce backboard major part in Japan and can see PET system.The application background advancing PET system backboard in Japan is that each company of module manufacturer is except avoiding the use of the high PVF of difficult supply price, solar cell is placed in house, apartment, the roof of the buildingss such as building, for the electricity usage of buildings supply portion, this method is common practices, and environment for use (meteorological conditions etc.) is not very harsh, module is compared with the U.S. with Europe, and lifespan is short.Moreover the technical capacity of PET film manufacturer in Japan also has very strong impact.
At present along with further developing, it is main that solar cell backboard mould material creates EVA, in conjunction with the composite modification material that other materials is prepared from, the excellent combination property of such material, more can be adapted to the application of sun power backboard membrane material, but such material also also exists mechanical property not at present, the problem that ageing-resistant ability is general, simultaneously in order to meet the use of solar cell backboard, its electric property also needs to carry out further exploitation and improve.
Summary of the invention
The object of the invention is to provide a kind of solar battery back film and preparation method thereof to overcome above the deficiencies in the prior art, improving the ageing resistance of battery back film and mechanical property and electric property.
The present invention is realized by following technique means:
A kind of solar battery back film, comprises in components by weight percent: EVA50-60 part, PP10-20 part, oxidation inhibitor 0.5-1 part, auxiliary antioxidant 0.5-1 part, photostabilizer 0.5-1 part, the two monooctyl ester 2-8 part of organotin toxilic acid, stearic acid 3-7 part, clorafin 1-6 part, epoxy zinc octadecanate ester 3-6 part, calcium stearate 0.5-3 part, N-cyclohexyl ethyl alcohol amine 0.8-2 part, polycarbonate 2-8 part, quadrol 0.8-2 part, silica 1-5 parts.
As the further improvement of foregoing invention, described solar battery back film, comprises in components by weight percent: EVA53-57 part, PP15-18 part, oxidation inhibitor 0.7-0.9 part, auxiliary antioxidant 0.6-0.8 part, photostabilizer 0.7-1 part, the two monooctyl ester 5-7 part of organotin toxilic acid, stearic acid 4-6 part, clorafin 2-5 part, epoxy zinc octadecanate ester 4-6 part, calcium stearate 1.5-2.5 part, N-cyclohexyl ethyl alcohol amine 1.2-1.7 part, polycarbonate 5-7 part, quadrol 1-1.5 part, silicon-dioxide 3-5 part.
As the further improvement of foregoing invention, oxidation inhibitor is antioxidant 2246.
As the further improvement of foregoing invention, auxiliary antioxidant is auxiliary antioxidant TNP.
As the further improvement of foregoing invention, photostabilizer is photostabilizer ZX-70.
The preparation method of the solar battery back film described in more than one, step is as follows:
Step one, is uniformly mixed each component in mixing and blending machine;
Step 2, joins in reactor by mixed for step one material, is 140-160 DEG C in temperature, vacuum tightness is under the condition of 0.01-0.06MPa, and stirring reaction 50-80 minute, is then cooled to 78-80 DEG C, continue to stir 120-150 minute, be down to room temperature, obtain reactant;
Step 3, reactant step 2 obtained extruding pelletization in twin screw extruder, obtains masterbatch;
Step 4, masterbatch step 3 obtained extrudes blown film by plastic film blowing machine, obtains solar battery back film.
As the further improvement of foregoing invention, the condition be uniformly mixed in step one is stirring velocity 260-280 rev/min, whipping temp 40-50 DEG C, churning time 30-40 minute.
As the further improvement of foregoing invention, in step 3, extruding pelletization temperature divides four sections of controls, and first paragraph temperature is 200-210 DEG C, and second segment temperature is 200-220 DEG C, and the 3rd section of temperature is 210-230 DEG C, and the 4th section of temperature is 220-240 DEG C.
As the further improvement of foregoing invention, extruding blown film condition in step 4 is that inflation film manufacturing machine barrel back segment temperature divides two sections of controls, control respectively at 210-220 DEG C, barrel front-end temperature divides two sections of controls, control respectively at 220-230 DEG C, blow-up ratio is 1.2-1.5, screw speed 20-30 rev/min, pulling speed 18-25 m/min.
Solar battery back film provided by the invention has good performance, wherein under the condition of film thickness 120 μm, tensile strength reaches more than 22MPa, elongation at break reaches more than 416%, heat-drawn wire reaches more than 171 DEG C, breakdown voltage strength reaches more than 23KV, 2000h photoaging stretching strength retentivity reaches more than 98.6%, man-made radiation's exposure test reach more than 2200 hours without exception, what can be good at tackling required for solar battery back film is high temperature resistant, ageing-resistant and high breakdown voltage strength and strong mechanical property, can be widely used in solar cell backboard.
Embodiment
Embodiment 1
A kind of solar battery back film, comprises in components by weight percent: EVA50-60 part, PP10-20 part, antioxidant 2246 0.5-1 part, auxiliary antioxidant TNP0.5-1 part, photostabilizer ZX-700.5-1 part, the two monooctyl ester 2-8 part of organotin toxilic acid, stearic acid 3-7 part, clorafin 1-6 part, epoxy zinc octadecanate ester 3-6 part, calcium stearate 0.5-3 part, N-cyclohexyl ethyl alcohol amine 0.8-2 part, polycarbonate 2-8 part, quadrol 0.8-2 part, silica 1-5 parts.
The preparation method of above-described solar battery back film, step is as follows:
Step one, is uniformly mixed each component in mixing and blending machine, and condition is stirring velocity 260-280 rev/min, whipping temp 40-50 DEG C, churning time 30-40 minute;
Step 2, joins in reactor by mixed for step one material, is 140-160 DEG C in temperature, vacuum tightness is under the condition of 0.01-0.06MPa, and stirring reaction 50-80 minute, is then cooled to 78-80 DEG C, continue to stir 120-150 minute, be down to room temperature, obtain reactant;
Step 3, reactant step 2 obtained extruding pelletization in twin screw extruder, obtains masterbatch, wherein extruding pelletization temperature divides four sections of controls, and first paragraph temperature is 200-210 DEG C, and second segment temperature is 200-220 DEG C, 3rd section of temperature is 210-230 DEG C, and the 4th section of temperature is 220-240 DEG C;
Step 4, masterbatch step 3 obtained extrudes blown film by plastic film blowing machine, condition is that inflation film manufacturing machine barrel back segment temperature divides two sections of controls, control respectively at 210-220 DEG C, barrel front-end temperature divides two sections of controls, controls respectively at 220-230 DEG C, blow-up ratio is 1.2-1.5, screw speed 20-30 rev/min, pulling speed 18-25 m/min, obtain solar battery back film.
Embodiment 2
A kind of solar battery back film, comprises in components by weight percent: EVA53-57 part, PP15-18 part, antioxidant 2246 0.7-0.9 part, auxiliary antioxidant TNP0.6-0.8 part, photostabilizer ZX-700.7-1 part, the two monooctyl ester 5-7 part of organotin toxilic acid, stearic acid 4-6 part, clorafin 2-5 part, epoxy zinc octadecanate ester 4-6 part, calcium stearate 1.5-2.5 part, N-cyclohexyl ethyl alcohol amine 1.2-1.7 part, polycarbonate 5-7 part, quadrol 1-1.5 part, silicon-dioxide 3-5 part.
The preparation method of above-described solar battery back film, step is as follows:
Step one, is uniformly mixed each component in mixing and blending machine, and condition is stirring velocity 260-280 rev/min, whipping temp 40-50 DEG C, churning time 30-40 minute;
Step 2, joins in reactor by mixed for step one material, is 140-160 DEG C in temperature, vacuum tightness is under the condition of 0.01-0.06MPa, and stirring reaction 50-80 minute, is then cooled to 78-80 DEG C, continue to stir 120-150 minute, be down to room temperature, obtain reactant;
Step 3, reactant step 2 obtained extruding pelletization in twin screw extruder, obtains masterbatch, wherein extruding pelletization temperature divides four sections of controls, and first paragraph temperature is 200-210 DEG C, and second segment temperature is 200-220 DEG C, 3rd section of temperature is 210-230 DEG C, and the 4th section of temperature is 220-240 DEG C;
Step 4, masterbatch step 3 obtained extrudes blown film by plastic film blowing machine, condition is that inflation film manufacturing machine barrel back segment temperature divides two sections of controls, control respectively at 210-220 DEG C, barrel front-end temperature divides two sections of controls, controls respectively at 220-230 DEG C, blow-up ratio is 1.2-1.5, screw speed 20-30 rev/min, pulling speed 18-25 m/min, obtain solar battery back film.
Embodiment 3
A kind of solar battery back film, comprises in components by weight percent: EVA53-57 part, PP15-18 part, antioxidant 2246 0.7-0.9 part, auxiliary antioxidant TNP0.6-0.8 part, photostabilizer ZX-700.7-1 part, the two monooctyl ester 5-7 part of organotin toxilic acid, stearic acid 4-6 part, clorafin 2-5 part, epoxy zinc octadecanate ester 4-6 part, calcium stearate 1.5-2.5 part, N-cyclohexyl ethyl alcohol amine 1.2-1.7 part, polycarbonate 5-7 part, quadrol 1-1.5 part, silicon-dioxide 3-5 part.
The preparation method of above-described solar battery back film, step is as follows:
Step one, is uniformly mixed each component in mixing and blending machine, and condition is stirring velocity 260-280 rev/min, whipping temp 40-50 DEG C, churning time 30-40 minute;
Step 2, joins in reactor by mixed for step one material, is 140-160 DEG C in temperature, vacuum tightness is under the condition of 0.01-0.06MPa, and stirring reaction 50-80 minute, is then cooled to 78-80 DEG C, continue to stir 120-150 minute, be down to room temperature, obtain reactant;
Step 3, reactant step 2 obtained extruding pelletization in twin screw extruder, obtains masterbatch, wherein extruding pelletization temperature divides four sections of controls, and first paragraph temperature is 200-210 DEG C, and second segment temperature is 200-220 DEG C, 3rd section of temperature is 210-230 DEG C, and the 4th section of temperature is 220-240 DEG C;
Step 4, masterbatch step 3 obtained extrudes blown film by plastic film blowing machine, condition is that inflation film manufacturing machine barrel back segment temperature divides two sections of controls, control respectively at 210-220 DEG C, barrel front-end temperature divides two sections of controls, controls respectively at 220-230 DEG C, blow-up ratio is 1.2-1.5, screw speed 20-30 rev/min, pulling speed 18-25 m/min, obtain solar battery back film.
Embodiment 4
A kind of solar battery back film, comprises in components by weight percent: EVA53-57 part, PP15-18 part, antioxidant 2246 0.7-0.9 part, auxiliary antioxidant TNP0.6-0.8 part, photostabilizer ZX-700.7-1 part, the two monooctyl ester 5-7 part of organotin toxilic acid, stearic acid 4-6 part, clorafin 2-5 part, epoxy zinc octadecanate ester 4-6 part, calcium stearate 1.5-2.5 part, N-cyclohexyl ethyl alcohol amine 1.2-1.7 part, polycarbonate 5-7 part, quadrol 1-1.5 part, silicon-dioxide 3-5 part.
The preparation method of above-described solar battery back film, step is as follows:
Step one, is uniformly mixed each component in mixing and blending machine, and condition is stirring velocity 260-280 rev/min, whipping temp 40-50 DEG C, churning time 30-40 minute;
Step 2, joins in reactor by mixed for step one material, is 140-160 DEG C in temperature, vacuum tightness is under the condition of 0.01-0.06MPa, and stirring reaction 50-80 minute, is then cooled to 78-80 DEG C, continue to stir 120-150 minute, be down to room temperature, obtain reactant;
Step 3, reactant step 2 obtained extruding pelletization in twin screw extruder, obtains masterbatch, wherein extruding pelletization temperature divides four sections of controls, and first paragraph temperature is 200-210 DEG C, and second segment temperature is 200-220 DEG C, 3rd section of temperature is 210-230 DEG C, and the 4th section of temperature is 220-240 DEG C;
Step 4, masterbatch step 3 obtained extrudes blown film by plastic film blowing machine, condition is that inflation film manufacturing machine barrel back segment temperature divides two sections of controls, control respectively at 210-220 DEG C, barrel front-end temperature divides two sections of controls, controls respectively at 220-230 DEG C, blow-up ratio is 1.2-1.5, screw speed 20-30 rev/min, pulling speed 18-25 m/min, obtain solar battery back film.
Embodiment 5
A kind of solar battery back film, comprises in components by weight percent: EVA50-60 part, PP10-20 part, antioxidant 2246 0.5-1 part, auxiliary antioxidant TNP0.5-1 part, photostabilizer ZX-700.5-1 part, the two monooctyl ester 2-8 part of organotin toxilic acid, stearic acid 3-7 part, clorafin 1-6 part, epoxy zinc octadecanate ester 3-6 part, calcium stearate 0.5-3 part, N-cyclohexyl ethyl alcohol amine 0.8-2 part, polycarbonate 2-8 part, quadrol 0.8-2 part, silica 1-5 parts.
The preparation method of above-described solar battery back film, step is as follows:
Step one, is uniformly mixed each component in mixing and blending machine, and condition is stirring velocity 260-280 rev/min, whipping temp 40-50 DEG C, churning time 30-40 minute;
Step 2, joins in reactor by mixed for step one material, is 140-160 DEG C in temperature, vacuum tightness is under the condition of 0.01-0.06MPa, and stirring reaction 50-80 minute, is then cooled to 78-80 DEG C, continue to stir 120-150 minute, be down to room temperature, obtain reactant;
Step 3, reactant step 2 obtained extruding pelletization in twin screw extruder, obtains masterbatch, wherein extruding pelletization temperature divides four sections of controls, and first paragraph temperature is 200-210 DEG C, and second segment temperature is 200-220 DEG C, 3rd section of temperature is 210-230 DEG C, and the 4th section of temperature is 220-240 DEG C;
Step 4, masterbatch step 3 obtained extrudes blown film by plastic film blowing machine, condition is that inflation film manufacturing machine barrel back segment temperature divides two sections of controls, control respectively at 210-220 DEG C, barrel front-end temperature divides two sections of controls, controls respectively at 220-230 DEG C, blow-up ratio is 1.2-1.5, screw speed 20-30 rev/min, pulling speed 18-25 m/min, obtain solar battery back film.
Performance test is carried out to the solar battery back film that above embodiment prepares, specific as follows:
As can be seen from above test-results, solar battery back film provided by the invention has good performance, wherein under the condition of film thickness 120 μm, tensile strength reaches more than 22MPa, elongation at break reaches more than 416%, heat-drawn wire reaches more than 171 DEG C, breakdown voltage strength reaches more than 23KV, 2000h photoaging stretching strength retentivity reaches more than 98.6%, man-made radiation's exposure test reach more than 2200 hours without exception, what can be good at tackling required for solar battery back film is high temperature resistant, ageing-resistant and high breakdown voltage strength and strong mechanical property, can be widely used in solar cell backboard.
Claims (9)
1. a solar battery back film, is characterized in that, comprises in components by weight percent: EVA 50-60 part, PP 10-20 part, oxidation inhibitor 0.5-1 part, auxiliary antioxidant 0.5-1 part, photostabilizer 0.5-1 part, the two monooctyl ester 2-8 part of organotin toxilic acid, stearic acid 3-7 part, clorafin 1-6 part, epoxy zinc octadecanate ester 3-6 part, calcium stearate 0.5-3 part, N-cyclohexyl ethyl alcohol amine 0.8-2 part, polycarbonate 2-8 part, quadrol 0.8-2 part, silica 1-5 parts.
2. solar battery back film according to claim 1, is characterized in that, comprises in components by weight percent: EVA 53-57 part, PP 15-18 part, oxidation inhibitor 0.7-0.9 part, auxiliary antioxidant 0.6-0.8 part, photostabilizer 0.7-1 part, the two monooctyl ester 5-7 part of organotin toxilic acid, stearic acid 4-6 part, clorafin 2-5 part, epoxy zinc octadecanate ester 4-6 part, calcium stearate 1.5-2.5 part, N-cyclohexyl ethyl alcohol amine 1.2-1.7 part, polycarbonate 5-7 part, quadrol 1-1.5 part, silicon-dioxide 3-5 part.
3. solar battery back film according to claim 1, is characterized in that, oxidation inhibitor is antioxidant 2246.
4. solar battery back film according to claim 1, is characterized in that, auxiliary antioxidant is auxiliary antioxidant TNP.
5. solar battery back film according to claim 1, is characterized in that, photostabilizer is photostabilizer ZX-70.
6. the preparation method of solar battery back film according to claim 1, is characterized in that, step is as follows:
Step one, is uniformly mixed each component in mixing and blending machine;
Step 2, joins in reactor by mixed for step one material, is 140-160 DEG C in temperature, vacuum tightness is under the condition of 0.01-0.06MPa, and stirring reaction 50-80 minute, is then cooled to 78-80 DEG C, continue to stir 120-150 minute, be down to room temperature, obtain reactant;
Step 3, reactant step 2 obtained extruding pelletization in twin screw extruder, obtains masterbatch;
Step 4, masterbatch step 3 obtained extrudes blown film by plastic film blowing machine, obtains solar battery back film.
7. the preparation method of solar battery back film according to claim 6, is characterized in that, the condition be uniformly mixed in step one is stirring velocity 260-280 rev/min, whipping temp 40-50 DEG C, churning time 30-40 minute.
8. the preparation method of solar battery back film according to claim 6, is characterized in that, in step 3, extruding pelletization temperature divides four sections of controls, first paragraph temperature is 200-210 DEG C, second segment temperature is 200-220 DEG C, and the 3rd section of temperature is 210-230 DEG C, and the 4th section of temperature is 220-240 DEG C.
9. the preparation method of solar battery back film according to claim 6, it is characterized in that, extruding blown film condition in step 4 is that inflation film manufacturing machine barrel back segment temperature divides two sections of controls, control respectively at 210-220 DEG C, barrel front-end temperature divides two sections of controls, controls respectively at 220-230 DEG C, and blow-up ratio is 1.2-1.5, screw speed 20-30 rev/min, pulling speed 18-25 m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410643447.0A CN104371183A (en) | 2014-11-13 | 2014-11-13 | Solar cell backboard back membrane and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410643447.0A CN104371183A (en) | 2014-11-13 | 2014-11-13 | Solar cell backboard back membrane and preparation method thereof |
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| CN104371183A true CN104371183A (en) | 2015-02-25 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569452A (en) * | 2010-10-20 | 2012-07-11 | 苏州尚善新材料科技有限公司 | Polymer back panel of solar battery assembly and manufacture method of polymer back panel |
| KR20130114357A (en) * | 2012-04-09 | 2013-10-18 | 한화엘앤씨 주식회사 | Back sheet for solar cell |
-
2014
- 2014-11-13 CN CN201410643447.0A patent/CN104371183A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569452A (en) * | 2010-10-20 | 2012-07-11 | 苏州尚善新材料科技有限公司 | Polymer back panel of solar battery assembly and manufacture method of polymer back panel |
| KR20130114357A (en) * | 2012-04-09 | 2013-10-18 | 한화엘앤씨 주식회사 | Back sheet for solar cell |
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Application publication date: 20150225 |