CN107599228A - A kind of processing method of packaging adhesive film for solar cell resin particle - Google Patents
A kind of processing method of packaging adhesive film for solar cell resin particle Download PDFInfo
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- CN107599228A CN107599228A CN201710692275.XA CN201710692275A CN107599228A CN 107599228 A CN107599228 A CN 107599228A CN 201710692275 A CN201710692275 A CN 201710692275A CN 107599228 A CN107599228 A CN 107599228A
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- resin particle
- adhesive film
- particle
- solar cell
- packaging adhesive
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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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- Photovoltaic Devices (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention provides a kind of processing method of packaging adhesive film for solar cell resin particle, cryogenic conditions below 30 DEG C, by 3~5mm spherical particle through mechanically deform or break process, it is processed into sheet stock of the thickness less than 1mm or particle diameter is less than 1mm irregular particle material.Increase the surface area of particle, shorten granular center to the distance on surface.The blending efficiency of processing resin particle and auxiliary agent by the present invention improves, and the uniformity of resin additive compound improves.Resin, auxiliary agent blending time can be shortened, lift packaging adhesive film performance.
Description
Technical field
The present invention relates to a kind of processing method of packaging adhesive film for solar cell resin particle, belongs to solar cell envelope
Fill glued membrane field, the packaging adhesive film more particularly to used in silica-based solar cell, thin film solar cell and laminated glass.
Background technology
The territory illumination in China 76% is abundant, and solar energy resources enriches, and solar cell is that one kind converts solar energy into
The device of electric energy.Cell piece plays a part of energy conversion in solar cell, due to the low intensity of battery sheet material in itself,
In actual use, it is impossible to be directly placed in air, it is necessary to be packaged protection to it, be prepared into solar battery group
Part.Solar cell uses out of doors for a long time, is exposed to the sun, the influence of sleet, it is very high to the performance requirement of packaging adhesive film, it is necessary to
Select light transmittance height, the packaging adhesive film that adhesive property is good, ageing-resistant performance is excellent.
The raw material of packaging adhesive film for solar cell is generally thermoplasticity or heat cured resin, including:Ethyl vinyl acetate second
Alkene copolymer (EVA), polyvinyl butyral resin (PVB), vistanex (POE) etc..The standby glue film performance of single resin-made compared with
Difference, usually need to add some auxiliary agents, such as crosslinking agent, antioxidant, thickener in actual production, to improve the bonding of glued membrane
And ageing-resistant performance.
Resin particle raw material is kneaded bar by plasticator with auxiliary agent and prepares compound, compound in packaging adhesive film production process
Glued membrane is made by calendering or flow casting molding again.The resin particle used at present is all the primary granule of producer's supply, and its is basic
Shape subglobular.Auxiliary agent is added in resin particle by the method for being added dropwise, spraying in plasticator, gradually passes through surface penetration
To inside.The resin ion of equal volume, spheroid surface area in all shapes are minimum；In addition, ball centre from surface away from
From remote, auxiliary agent endosmosis time length, so spherical particle is that auxiliary agent absorbs and permeated worst in all shapes.This aspect
Resin particle in glued membrane preparation process is caused to need longer time to can be only achieved certain uniformity with auxiliary agent；On the other hand,
Undesirable due to being blended, each homogeneity of ingredients of compound after mixing is also poor, influences finally prepd packaging adhesive film bonding
And ageing-resistant performance.
Based on problem above, the present invention provides a kind of preparation method of packaging adhesive film for solar cell resin particle,
On the basis of the initial resin particle that producer provides, the specific surface area of resin particle is improved, increase resin particle surfaces are to auxiliary agent
Absorbability, shorten auxiliary agent to the path of resin particle diffusion inside.So as to reduce the blending time of resin particle and auxiliary agent, carry
High blend uniformity, reach the purpose for the encapsulation performance for improving packaging adhesive film.
The content of the invention
It is an object of the invention to provide a kind of processing method of packaging adhesive film for solar cell resin particle, solves mesh
It is preceding prepared using spherical resin particle as raw material packaging adhesive film when, resin particle and auxiliary agent blending time length, uniformity is bad
Problem.
To solve above technical problem, the technical solution adopted by the present invention is as follows：
A kind of processing method of packaging adhesive film for solar cell resin particle, the master of the processing method and prior art
It is distinguished as：Resin raw material particle for production passes through low-temperature deformation or break process, increases the surface area of particle, lifting
Adsorption capacity of the particle surface to auxiliary agent during blending.On the other hand, reduce the distance that surface is arrived inside particle, shorten auxiliary agent to tree
The time of fat particle diffusion inside.So as to shorten the blending time of resin particle and auxiliary agent, the uniform of each component in blend composition is carried
Property.
The resin particle includes being used for EVA resin, POE resin, PVB resin prepared by packaging adhesive film for solar cell
Deng.
The deformation of the resin particle or broken mode are included but are not limited to roll, thick decorative pattern interface is rolled, machine
Tool crushes, grinds any of which therein.
The deformation of the resin particle makes original a diameter of 3~5mm particle roll as thickness by the way of rolling
Sheet stock less than 1mm, the increase of its reference area, the distance that auxiliary agent reaches granular center are changed into from 1.5~2.5mm of spherical particle
Below 0.5mm, diffusion path are shortened, and infiltration rate is greatly speeded up, and the auxiliary agent uniformity of particle greatly increases.
Further thick decorative pattern interface roll for：Using it is coarse it is upper and lower roll interface, make particle roll rear surface have it is bright
Aobvious concave-convex sense.On the one hand the surface area of particle can be further improved, on the other hand rough surface, between reduction particle
Contact area, add void among particles rate, be advantageous to auxiliary agent is adsorbed in diffusion.
Further rolling apparatus using water cooling or it is air-cooled by the way of, progress surface temperature control, make its surface temperature
No more than 30 DEG C, alleviate the heat discharged in tableting processes, the resin particle for preventing fusing point relatively low melts in process
Melt the phenomenon of bonding.
The broken of the resin particle includes Mechanical Crushing, grinding etc., i.e., breaks original a diameter of 3~5mm particle
The broken irregular particle for being less than 1mm for diameter.Resin particle specific surface area increases, and the distance of granular center to surface reduces, right
Adsorption capacity and the diffusion velocity increase of auxiliary agent.Time shortening is blended, efficiency improves, component uniformity increase.
Further preferred scheme is：To disintegrating apparatus using water cooling or it is air-cooled by the way of, carry out device temperature control,
Its surface temperature is set to be no more than 30 DEG C, the heat for preventing from discharging in shattering process causes resin particle the phenomenon for melting bonding occur
Taking the beneficial effect of technical solution of the present invention is：By arriving for the resin particle surface area of deformation or break process
It is substantially improved, the Distance Shortened of granular center to surface.Therefore, the absorbability of auxiliary agent is strengthened in Blending Processes, auxiliary agent
Lifted to the diffuser efficiency inside particle.Under conditions of identical blending effect is reached, shorten the blending time more than 50%.In phase
With under the blending time, the uniformity of resin and auxiliary agent in compound can be improved, lifts the packaging adhesive film performance of preparation.
Embodiment
The present invention is described in detail with reference to embodiment
Embodiment 1
A kind of processing method of solar cell package film resin particle, the processing method are by spherical resin particle
Roll slabbing.
The processing of resin particle:It is ethylene-vinyl acetate resin (EVA) resin particle raw material by 3~5mm of diameter, adopts
The sheet-like particle that thickness is 0.5mm is pressed into water-cooled tablet press machine.The interface of rolling of wherein tablet press machine is rough interfaces, tabletting
During using water cooling controlling measurement interface temperature maintain less than 30 DEG C.The measure of merit of processing method：To simplify experiment originally
Added auxiliary agent only has crosslinking agent a kind of in case study on implementation, and material mass ratio is mEVA:mCrosslinking agent=100:1.Method of testing according to
GB/T1040-1992 carries out tensile property test to the EVA after solidification, investigates cross-linking efficiency according to the change of tensile property, enters
One step judges the influence that the processing method of the implementation case is prepared to packaging adhesive film.
Specific operation process is：1) it is blended:The EVA resin sheet-like particle of preparation is blended with crosslinking agent in plasticator, obtains
To resin-crosslinking agent blend composition；2) prolong and be pressed into film：Product is hot-forming on compression molding instrument after being kneaded, and it is solid to obtain crosslinking
The eva film sample of change.150 DEG C of hot pressing temperature, 200s is preheated, hot pressing 500s, hot pressing pressure 10MPa, is cold-pressed 250s afterwards；3)
Performance test：Eva film sample is cut into the strip sample that width is 4mm, according to GB/T 1040-1992, rate of extension
50mm/min carries out tensile property test, and every group of batten at least tests 5 samples.In addition, the spherical resin particle supplied with producer
Crosslinking agent is added, 200min is blended in kneading machine, by same process crosslinking curing film forming sample as a control group.
The performance test results are as shown in table 1 below：
The EVA adhesive film sample tensile property test result table of table 1
Data explanation in table 1：The flaky resin particle prepared by this programme, by 40min blending, the stretching of sample
Intensity, yield strength and fracture percentage of elongation are suitable with spherical particle 200min blending numerical value.This shows, equal film-forming process
Under, sheet-like particle 40min blendings can reach the same effect of spherical particle 200min blendings, shorten the blending time 80%.
In addition, in the case where the time is blended in identical, glued membrane intensity prepared by sheet-like particle is apparently higher than spherical particle.This explanation
Sheet-like particle can improve the uniformity of resin-crosslinking agent compound, help to improve the packaging adhesive film performance prepared.
Embodiment 2
A kind of solar cell package film resin particle processing method, the processing method are to break spherical resin particle
It is broken into irregular little particle.
The process of resin particle is：It is ethylene-vinyl acetate resin (EVA) resin particle by a diameter of 3~5mm
Raw material, crusher in crushing is used to take water cooling to arrange in the mechanical crusher course of work for a diameter of irregular particle less than 1mm
Apply, control working interface temperature maintains less than 30 DEG C.
The measure of merit of processing method：There was only crosslinking agent one kind, thing to simplify the auxiliary agent added by testing in the implementation case
Matter mass ratio is mEVA:mCrosslinking agent=100:1.Method of testing carries out tensile property according to GB/T1040-1992 to the EVA after solidification
Test, cross-linking efficiency is investigated according to the change of tensile property, further investigates the processing method of the implementation case to packaging adhesive film
The influence of preparation.Specific steps are as described in example 1 above.The performance test results such as table 2 below：
The EVA adhesive film sample tensile property test result table of table 2
As shown by data in table 2, resin particle blending time 50min in the present embodiment after break process with spherical
Grain blending 200min intensity is suitable.This explanation the present embodiment can substantially shorten the blending time, save the blending time 75%.
The time further is being blended under the same conditions, glued membrane intensity prepared by crushed particles shows to be crosslinked apparently higher than spherical particle
Carry out more complete, illustrate to be advantageous to the uniformity for increasing auxiliary agent and resin particle after break process, improve packaging plastic
The performance of film.
In above-described embodiment, the present invention has been carried out in detail by taking widely used EVA resin particle in solar cell as an example
Thin description.But the present invention processing method be applicable not only to EVA particles, be equally applicable to POE resin, PVB resin and its
He is applied to the thermoplastic and hot-melt resin particle of packaging adhesive film for solar cell.For industry personnel, this hair is not being departed from
In the case of bright basic thought, any change done to technical solution of the present invention is all limited in claims of the present invention
In the range of.
Claims (3)
- A kind of 1. processing method of packaging adhesive film for solar cell resin particle, it is characterised in that：The processing method is low Under the conditions of temperature, the resin particle for preparing packaging adhesive film for solar cell is deformed or break process, makes resin particle By the 3~5mm spherical sheet stock for becoming smaller than 1mm or less than 1mm irregular particle material；The deformation or crumbling method, bag Include but be not limited only to roll, thick decorative pattern interface is rolled, Mechanical Crushing, grinding any of which therein.
- 2. according to a kind of processing method of packaging adhesive film for solar cell resin particle described in claim 1, it is characterised in that： Preparation of the resin particle for packaging adhesive film for solar cell, including but not limited to ethylene-vinyl acetate copolymer (EVA), gather Vinyl butyral (PVB), vistanex (POE).
- 3. according to a kind of processing method of packaging adhesive film for solar cell resin particle described in claim 1, it is characterised in that： By the way of refrigerant cooling, control machinery tabletting or broken treatment temperature are below 30 DEG C；Refrigerant cooling includes but unlimited In water cooling and air-cooled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710692275.XA CN107599228A (en) | 2017-08-14 | 2017-08-14 | A kind of processing method of packaging adhesive film for solar cell resin particle |
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| CN201710692275.XA CN107599228A (en) | 2017-08-14 | 2017-08-14 | A kind of processing method of packaging adhesive film for solar cell resin particle |
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| CN107599228A true CN107599228A (en) | 2018-01-19 |
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| CN201710692275.XA Pending CN107599228A (en) | 2017-08-14 | 2017-08-14 | A kind of processing method of packaging adhesive film for solar cell resin particle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110634977A (en) * | 2019-08-01 | 2019-12-31 | 晶澳（扬州）太阳能科技有限公司 | Preparation method and device of integrated packaging adhesive film photovoltaic glass |
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| CN1132137A (en) * | 1995-03-31 | 1996-10-02 | 浅岗株式会社 | Method and appts. for pulverizing waste fibre reinforced plastic |
| CN101178552A (en) * | 2006-11-09 | 2008-05-14 | 夏普株式会社 | Method for manufacturing resin particle |
| CN101758570A (en) * | 2008-12-23 | 2010-06-30 | 张桂英 | Preparation process of epoxy resin composition for semiconductor packaging |
| CN202071241U (en) * | 2011-04-26 | 2011-12-14 | 江苏苏青水处理工程集团有限公司 | Resin crushing device |
| CN104371577A (en) * | 2014-11-13 | 2015-02-25 | 无锡中洁能源技术有限公司 | Solar cell packaging adhesive film and preparation method thereof |
-
2017
- 2017-08-14 CN CN201710692275.XA patent/CN107599228A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1132137A (en) * | 1995-03-31 | 1996-10-02 | 浅岗株式会社 | Method and appts. for pulverizing waste fibre reinforced plastic |
| CN101178552A (en) * | 2006-11-09 | 2008-05-14 | 夏普株式会社 | Method for manufacturing resin particle |
| CN101758570A (en) * | 2008-12-23 | 2010-06-30 | 张桂英 | Preparation process of epoxy resin composition for semiconductor packaging |
| CN202071241U (en) * | 2011-04-26 | 2011-12-14 | 江苏苏青水处理工程集团有限公司 | Resin crushing device |
| CN104371577A (en) * | 2014-11-13 | 2015-02-25 | 无锡中洁能源技术有限公司 | Solar cell packaging adhesive film and preparation method thereof |
Non-Patent Citations (1)
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| 华北电力大学太阳能研究中心编: "《光伏产业路线图》", 30 November 2011, 中国水利水电出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110634977A (en) * | 2019-08-01 | 2019-12-31 | 晶澳（扬州）太阳能科技有限公司 | Preparation method and device of integrated packaging adhesive film photovoltaic glass |
| CN110634977B (en) * | 2019-08-01 | 2021-09-14 | 晶澳（扬州）太阳能科技有限公司 | Integrated packaging adhesive film photovoltaic glass preparation device |
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Application publication date: 20180119 |
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