CN104218111A - Environment-friendly solar cell backing film excellent in flame retardation - Google Patents
Environment-friendly solar cell backing film excellent in flame retardation Download PDFInfo
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- CN104218111A CN104218111A CN201410408632.1A CN201410408632A CN104218111A CN 104218111 A CN104218111 A CN 104218111A CN 201410408632 A CN201410408632 A CN 201410408632A CN 104218111 A CN104218111 A CN 104218111A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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- C08F214/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
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Abstract
An environment-friendly solar cell backing film excellent in flame retardation comprises a weather-proof layer, a base material and an adhesive layer. The weather-proof layer is obtained by applying and curing coating liquid on the surface of the base material and composed of flame-retardant fluororesin and curing agent, and the flame-retardant fluororesin is pentabasic copolymer and is polymerized by five monomers A, B, C, D and E. A: F2C=CC1F, B: CH2=CHCOOCH2CH3, C:CH2=CH(CH2)nOH, D:CH2=CHOR1, and E is vinyl cage-type silsesquioxane, wherein the n ranges from 2 to 10, the R1 is ethyl, isopropyl, normal butyl and isobutyl, and the part ratio by weight of the monomers, emulsifier, water and initiator is 50-90:5-10:5-20:40-80:3-11:150-250:1-6:0.2-2. Flame retardation of solar cells is excellent, FSI is smaller than 100 and reaches HB level of the UL94 standard, and flame retardation meets the requirements while weather proofness and damp-heat aging resistance are more stable and uniform.
Description
Technical field
The invention belongs to new energy field, particularly a kind of solar battery back film of excellent fireproof performance.
Background technology
As the green replacement scheme of traditional production method of electric energy, photovoltaic cell component is used to utilize solar energy to produce electric energy.Photovoltaic cell component is formed by various semiconductor element system assembles, thus must be protected, to reduce environmental activity if moisture, oxygen and ultraviolet are on the impact of assembly and destruction.What photovoltaic cell component adopted usually is the structure attaching glass or plastic film protective layer at silicon chip both sides lamination; in all encapsulating materials of photovoltaic module; glass, silicon chip, aluminium frame etc. all have fire resistance; in the fire safety standard-required photovoltaic module of simultaneously increasingly stringent, parts of plastics also should have certain fire resistance; current assembly producer clearly proposes; need the flame spread index to solar battery back film (FSI) to control, require that FSI is less than 100.The solar cell backboard in current photovoltaic module with excellent weather resistance, uvioresistant performance and wet-hot aging performance can not meet fire protection requirement.
The Chinese patent of application number 201210254023.6 proposes " a kind of environment protection solar cell notacoria ", this notacoria has high durable and environmental-protecting performance, but the flame retardant effect of the notacoria that this patent provides is poor, its flame spread index FSI is greater than 100, does not also reach the HB level of UL94 standard simultaneously.
Summary of the invention
Problem to be solved by this invention is the weak point existed for prior art, and provide a kind of environment protection solar cell notacoria of excellent fireproof performance, its FSI is less than 100, and reaches the HB level of UL94 standard.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of environment protection solar cell backboard of excellent fireproof performance, comprise weathering layer, base material and adhesive linkage, the coating solution that described weathering layer is made up of anti-flammability fluororesin and curing agent obtains in substrate surface solidification, described anti-flammability fluororesin is five-membered copolymer, adopts following A, B, C, D, E five kinds of monomers to be polymerized:
A：?F
2C=CClF，
B：?CH
2=CH?COOCH
2CH
3，
C:CH
2=CH (CH
2) nOH, wherein n=2 ~ 10,
D:CH
2=CH OR
1, wherein, R
1=ethyl, isopropyl, normal-butyl, isobutyl group,
E: ethenyl cage model sesquialter siloxane,
The weight part ratio of five kinds of monomers, emulsifying agent, water, initator is: A:B:C:D:E: water: emulsifying agent: initator=50 ~ 90:5 ~ 10:5 ~ 20:40 ~ 80:3 ~ 11:150 ~ 250:1 ~ 6:0.2 ~ 2.
The environment protection solar cell backboard of above-mentioned excellent fireproof performance, described emulsifying agent is the mixture of perfluorinated surfactant and non-fluorine surfactant.
The environment protection solar cell backboard of above-mentioned excellent fireproof performance, described initator is dialkyl acyl class, new decanoate ester peroxide class, perfluor peroxide or potassium peroxydisulfate.
The environment protection solar cell backboard of above-mentioned excellent fireproof performance, described curing agent is water-based aliphatic isocyanates curing agent.
The environment protection solar cell backboard of above-mentioned excellent fireproof performance, the thickness of described weathering layer is 15 ~ 30 μm.
The environment protection solar cell backboard of above-mentioned excellent fireproof performance, the thickness of described adhesive linkage is 5 ~ 30 μm.
Compared with prior art, the present invention, by the selection of monomeric species and the adjustment of consumption, obtains the anti-flammability fluororesin with fire resistance, the coating fluid be made up of it and curing agent solidifies the notacoria obtained, excellent fireproof performance, its FSI is less than 100, and reaches the HB level of UL94 standard.Meet notacoria fire resistance require while, its weatherability, wet and heat ageing resistant performance more stable evenly.
Embodiment
Notacoria provided by the invention comprises weathering layer, base material and adhesive linkage, and the coating solution that weathering layer is wherein made up of anti-flammability fluororesin and curing agent obtains in substrate surface solidification.
For meeting the requirement of notacoria to fire resistance, the selection of anti-flammability fluororesin is even more important, and the anti-flammability fluororesin in the present invention is five-membered copolymer, adopts following A, B, C, D, E five kinds of monomers to be polymerized:
A：?F
2C=CClF，
B：?CH
2=CH?COOCH
2CH
3，
C:CH
2=CH (CH
2) nOH, wherein n=2 ~ 10,
D:CH
2=CH OR
1, wherein, R
1=ethyl, isopropyl, normal-butyl, isobutyl group,
E: ethenyl cage model sesquialter siloxane,
The weight part ratio of five kinds of monomers, emulsifying agent, water, initator is: A:B:C:D:E: water: emulsifying agent: initator=50 ~ 90:5 ~ 10:5 ~ 20:40 ~ 80:3 ~ 11:150 ~ 250:1 ~ 6:0.2 ~ 2.
Wherein, due to the existence of chlorine element in chlorotrifluoroethylene, fluororesin itself is made to be provided with certain flame retardant effect, but coating still can not meet the flame-retardancy requirements of notacoria, so add ethenyl cage model sesquialter siloxane when being polymerized, cage-type silsesquioxane is incorporated in fluororesin strand, makes fluororesin be provided with obvious flame retardant effect; The effect of alkylene alcohol be make to have in strand a large amount of can reactive functionality-OH, improve the adhesive ability between fluororesin and base material; The effect of vinyl acrylate has the functional group-COOH that can react in strand after the fluororesin hydrolysis making to synthesize, and what coating was cross-linked is more abundant, and ageing-resistant performance is more excellent; The effect of vinyl ethers makes fluororesin molecule have certain compliance, if strand is too hard, solar cell backboard is in cripping test, and coating has the danger of cracking.
The preparation of anti-flammability fluororesin can adopt known method to be prepared, and preparation method disclosed in Chinese patent 02109089.0, is specifically prepared by the following method:
1. in proportion emulsifying agent and 1/3 part of water are mixed and obtain emulsifier aqueous solution, for subsequent use;
2. in proportion initator and 2/3 part of water are mixed and obtain initiator solution, divide equally I, II, III tri-parts, for subsequent use;
3. A, B, C, D, E five monomers and 3/4 part of emulsifier aqueous solution are mixed to obtain emulsified monomer, for subsequent use;
4. in autoclave, add 1/4 part of emulsifier aqueous solution and the pH value conditioning agent aqueous solution, through degassed, inflated with nitrogen, after degassed, getting 1/3 part of emulsified monomer joins in reactor, after stirring is warmed up to 60 DEG C, add initiator solution I, start polymerization, liquid temperature is made to remain on 60 ~ 70 DEG C by cooling measure, 2/3 part of emulsified monomer and initiator solution II is added after reacting balance, within 3 ~ 3.5 hours, dropwise, make liquid temperature remain on 70 ~ 90 DEG C by cooling measure initiator solution III to be joined in reactor after 0.5 hour and continue reaction 10 hours, cooling, discharging obtains anti-flammability fluororesin.
Emulsifying agent when preparing fluororesin can be perfluorinated surfactant, also can be non-fluorine surfactant, and consider cost factor and combined coefficient, the emulsifying agent in the present invention selects perfluorinated surfactant and non-fluorine surfactant mixture; Initator adopts the one in dialkyl acyl class, new decanoate ester peroxide class, perfluor peroxide, potassium peroxydisulfate.
In coating fluid except anti-flammability fluororesin, also need to add curing agent and carry out crosslinking curing, curing agent is selected from commercially available water-based aliphatic isocyanates curing agent.
The THICKNESS CONTROL of the weathering layer in the present invention, at 15 ~ 30 μm, when thickness is lower than 15 μm, does not reach weather-proof and flame retardant effect; When thickness is higher than 30 μm, the chemical industry cost of coating is caused to improve.
Adhesive linkage can adopt known acrylic resin, mylar, fluorine resin etc. to be coated directly onto on base material and obtain, and also can use adhesive compound polyvinyl acetate film, polyvinyl butyral film, olefin polymer film, pvdf membrane, PVF film etc. and obtain; In the present invention, the THICKNESS CONTROL of adhesive linkage is at 5 ~ 30 μm, and when thickness is lower than 5 μm, after long hydrothermal aging after the meeting, its adhesive strength declines obviously adhesive linkage, has influence on the useful life of notacoria; When thickness is higher than 30 μm, in the test of flame spread index, the heat of adhesive linkage release is higher.
Base material for solar battery back film is polyester, and such as, it can be the single or multiple lift film that PETG (PET) resin, polyethylene naphthalate (PEN) resin etc. are formed.From evaluations such as thermal stability, electrical insulating property, costs, optimal selection is PETG (PET) film.Different according to the purposes of solar battery back film, the base material of different-thickness, different colours can be selected.
Below by specific embodiment, the invention will be further described.
Embodiment 1
Prepared by anti-flammability fluororesin:
A：?F
2C=CClF
B：?CH
2=CH?COOCH
2CH
3
C：?CH
2=CHCH
2?CH
2OH
D：?CH
2=CH?OCH
2CH
3
E:Monovinyl-Cyclopentyl-POSS (Sigma-Aldrich system)
A:B:C:D:E: water: perfluor caproic acid ammonium: AEO: potassium peroxydisulfate=50:5:5:40:3:150:0.5:0.5:0.2.
The preparation method of anti-flammability fluororesin:
The water of the perfluor caproic acid ammonium of 0.5g, 0.5g AEO and 50g is mixed, obtains emulsifier aqueous solution, for subsequent use;
The water of 0.2g potassium peroxydisulfate and 100g is mixed, obtains initiator solution, divide equally I, II, III tri-parts, for subsequent use;
50gA, 5gB, 5gC, 40gD, 3gE and 38g emulsifier aqueous solution is mixed, obtains emulsified monomer, for subsequent use;
13g emulsifier aqueous solution and pH value conditioning agent sodium bicarbonate aqueous solution is added in autoclave, through degassed, inflated with nitrogen, after degassed, getting 47g emulsified monomer joins in reactor, after stirring is warmed up to 60 DEG C, add initiator solution I, start polymerization, liquid temperature is made to remain on 60 ~ 70 DEG C by cooling measure, 104g emulsified monomer and initiator solution II is added after reacting balance, within 3 ~ 3.5 hours, dropwise, after making liquid temperature keep 0.5 hour at 70 ~ 90 DEG C by cooling measure, initiator solution III is joined in reactor and continue reaction 10 hours, cooling, discharging obtains anti-flammability fluororesin.
The fluororesin-coated liquid preparation of anti-flammability, each component weight ratio is as follows:
Above-mentioned anti-flammability fluororesin: water-based aliphatic isocyanates Bayhydur XP 2655=100:10.Stir after 15 minutes, leave standstill froth breaking.
Fluororesin-coated for anti-flammability liquid is applied to above own corona, clean PET base material, within 3 minutes, obtains 30 μm of thick weathering coatings 150 DEG C of dryings; At another side coating binder compound 5 μm of polyolefin films, obtain solar battery back film.
Embodiment 2
Prepared by anti-flammability fluororesin:
A：?F
2C=CClF
B：?CH
2=CH?COOCH
2CH
3
C：?CH
2=CH（CH
2）
5?OH
D：?CH
2=CH?O?CH
2（CH
3）CH
3
E:Allyl-Cyclopentyl-POSS (Sigma-Aldrich system)
A:B:C:D:E: water: perfluorobutyl potassium: styrylphenol polyoxyethylene ether: new decanoate ester peroxide weight ratio=60:7:10:45:5:160:0.5:2.5:0.5
The preparation method of anti-flammability fluororesin:
The water of the perfluorobutyl potassium of 0.5g, 2.5g styrylphenol polyoxyethylene ether and 60g is mixed, obtains emulsifier aqueous solution, for subsequent use;
The water of 0.5g new decanoate ester peroxide and 100g is mixed, obtains initiator solution, divide equally I, II, III tri-parts, for subsequent use;
60gA, 7gB, 10gC, 45gD, 5gE and 48g emulsifier aqueous solution is mixed, obtains emulsified monomer, for subsequent use;
15g emulsifier aqueous solution and pH value conditioning agent sodium bicarbonate aqueous solution is added in autoclave, through degassed, inflated with nitrogen, after degassed, getting 58g emulsified monomer joins in reactor, after stirring is warmed up to 60 DEG C, add initiator solution I, start polymerization, liquid temperature is made to remain on 60 ~ 70 DEG C by cooling measure, 117g emulsified monomer and initiator solution II is added after reacting balance, within 3 ~ 3.5 hours, dropwise, after making liquid temperature keep 0.5 hour at 70 ~ 90 DEG C by cooling measure, initiator solution III is joined in reactor and continue reaction 10 hours, cooling, discharging obtains anti-flammability fluororesin.
The fluororesin-coated liquid preparation of anti-flammability, each component weight ratio is as follows:
Above-mentioned anti-flammability fluororesin: water-based aliphatic isocyanates Easaqua
tMxL 600=100:8.Stir after 15 minutes, leave standstill froth breaking.
Fluororesin-coated for anti-flammability liquid is applied to above own corona, clean PET base material, within 3 minutes, obtains 20 μm of coatings 150 DEG C of dryings; At PET base material another side coating binder compound 25 μm of PVF films, obtain solar battery back film.
Embodiment 3
Prepared by anti-flammability fluororesin:
A：?F
2C=CClF
B：?CH
2=CH?COOCH
2CH
3
C：?CH
2=CH（CH
2）
10?OH
D：?CH
2=CH?O?CH
2?CH
2?CH
2?CH
3
E:Monovinyl-Cyclopentyl-POSS: Allyl-Cyclopentyl-POSS=1:1(Sigma-Aldrich system)
A:B:C:D:E: water: nona oxy benzene sulfonic acid sodium salt of perfluoro: styrylphenol polyoxyethylene ether: new decanoate ester peroxide weight ratio=70:8:15:55:7:200:1:3:1.
The preparation method of anti-flammability fluororesin:
The water of the nona oxy benzene sulfonic acid sodium salt of perfluoro of 1g, 3g styrylphenol polyoxyethylene ether and 70g is mixed, obtains emulsifier aqueous solution, for subsequent use;
The water of 1g new decanoate ester peroxide and 130g is mixed, obtains initiator solution, divide equally I, II, III tri-parts, for subsequent use;
70gA, 8gB, 15gC, 55gD, 7gE and 55g emulsifier aqueous solution is mixed, obtains emulsified monomer, for subsequent use;
19g emulsifier aqueous solution and pH value conditioning agent sodium bicarbonate aqueous solution is added in autoclave, through degassed, inflated with nitrogen, after degassed, getting 70g emulsified monomer joins in reactor, after stirring is warmed up to 60 DEG C, add initiator solution I, start polymerization, liquid temperature is made to remain on 60 ~ 70 DEG C by cooling measure, 140g emulsified monomer and initiator solution II is added after reacting balance, within 3 ~ 3.5 hours, dropwise, after making liquid temperature keep 0.5 hour at 70 ~ 90 DEG C by cooling measure, initiator solution III is joined in reactor and continue reaction 10 hours, cooling, discharging obtains anti-flammability fluororesin.
The fluororesin-coated liquid preparation of anti-flammability, each component weight ratio is as follows:
Above-mentioned anti-flammability fluororesin: water-based aliphatic isocyanates Bayhydur XP 2655=100:12.Stir after 15 minutes, leave standstill froth breaking.
Fluororesin-coated for anti-flammability liquid is applied to above own corona, clean PET base material, within 3 minutes, obtains 15 μm of coatings 150 DEG C of dryings; In the dry thick 30 μm of acrylic resin coatings of PET base material another side coating, obtain solar battery back film.
Embodiment 4
Prepared by anti-flammability fluororesin:
A：?F
2C=CClF
B：?CH
2=CH?COOCH
2CH
3
C：?CH
2=CH（CH
2）
9?OH
D：?CH
2=CH?O?CH
2?CH（CH
3）CH
3
E:Allyl-Isobutyl-POSS (Sigma-Aldrich system)
A:B:C:D:E: water: perfluoroalkyl oxa-n-nonanoic acid ammonium: AEO: peroxidating two perfluor propionyl=90:10:20:60:8:250:1:5:2
The preparation method of anti-flammability fluororesin:
The water of the perfluoroalkyl oxa-n-nonanoic acid ammonium of 1g, 5g AEO and 80g is mixed, obtains emulsifier aqueous solution, for subsequent use;
The water of 2g peroxidating two perfluor propionyl and 170g is mixed, obtains initiator solution, divide equally I, II, III tri-parts, for subsequent use;
90gA, 10gB, 20gC, 60gD, 8gE and 65g emulsifier aqueous solution is mixed, obtains emulsified monomer, for subsequent use;
19g emulsifier aqueous solution and pH value conditioning agent sodium bicarbonate aqueous solution is added in autoclave, through degassed, inflated with nitrogen, after degassed, getting 85g emulsified monomer joins in reactor, after stirring is warmed up to 60 DEG C, add initiator solution I, start polymerization, liquid temperature is made to remain on 60 ~ 70 DEG C by cooling measure, 168g emulsified monomer and initiator solution II is added after reacting balance, within 3 ~ 3.5 hours, dropwise, after making liquid temperature keep 0.5 hour at 70 ~ 90 DEG C by cooling measure, initiator solution III is joined in reactor and continue reaction 10 hours, cooling, discharging obtains anti-flammability fluororesin.
The fluororesin-coated liquid preparation of anti-flammability, each component weight ratio is as follows:
Above-mentioned anti-flammability fluororesin: water-based aliphatic isocyanates RHODOCOAT X EZ-D 803=100:11.Stir after 15 minutes, leave standstill froth breaking.
Fluororesin-coated for anti-flammability liquid is applied to above own corona, clean PET base material, within 3 minutes, obtains 22 μm of coatings 150 DEG C of dryings; At PET base material another side coating binder compound 30 μm of polyvinyl acetate films, obtain solar battery back film.
Embodiment 5
Prepared by anti-flammability fluororesin:
A：?F
2C=CClF
B：?CH
2=CH?COOCH
2CH
3
C：?CH
2=CH（CH
2?）
7OH
D：?CH
2=CH?O?CH
2?CH（CH
3）CH
3
E:Allyl-Isobutyl-POSS (Sigma-Aldrich system)
A:B:C:D:E: water: perfluoroalkyl oxa-n-nonanoic acid ammonium: AEO: potassium peroxydisulfate=60:10:20:80:11:180:0.5:4:1.
The preparation method of anti-flammability fluororesin:
The water of the perfluoroalkyl oxa-n-nonanoic acid ammonium of 0.5g, 4g AEO and 60g is mixed, obtains emulsifier aqueous solution, for subsequent use;
The water of 1g potassium peroxydisulfate and 120g is mixed, obtains initiator solution, divide equally I, II, III tri-parts, for subsequent use;
60gA, 10gB, 20gC, 80gD, 11gE and 48g emulsifier aqueous solution is mixed, obtains emulsified monomer, for subsequent use;
16.5g emulsifier aqueous solution and pH value conditioning agent sodium bicarbonate aqueous solution is added in autoclave, through degassed, inflated with nitrogen, after degassed, getting 76g emulsified monomer joins in reactor, after stirring is warmed up to 60 DEG C, add initiator solution I, start polymerization, liquid temperature is made to remain on 60 ~ 70 DEG C by cooling measure, 153g emulsified monomer and initiator solution II is added after reacting balance, within 3 ~ 3.5 hours, dropwise, after making liquid temperature keep 0.5 hour at 70 ~ 90 DEG C by cooling measure, initiator solution III is joined in reactor and continue reaction 10 hours, cooling, discharging obtains anti-flammability fluororesin.
The fluororesin-coated liquid preparation of anti-flammability, each component weight ratio is as follows:
Above-mentioned anti-flammability fluororesin: water-based aliphatic isocyanates Bayhydur XP 2655=100:12.Stir after 15 minutes, leave standstill froth breaking.
Fluororesin-coated for anti-flammability liquid is applied to above own corona, clean PET base material, within 3 minutes, obtains 25 μm of thick weathering coatings 150 DEG C of dryings; At another side coating binder compound 10 μm of polyolefin films, obtain solar battery back film.
Embodiment 6
Prepared by anti-flammability fluororesin:
A：?F
2C=CClF
B：?CH
2=CH?COOCH
2CH
3
C：?CH
2=CHCH
2?CH
2CH
2OH
D：?CH
2=CH?OCH（CH
3）CH
3
E:Monovinyl-Cyclopentyl-POSS (Sigma-Aldrich system)
A:B:C:D:E: water: perfluor caproic acid ammonium: styrylphenol polyoxyethylene ether: new decanoate ester peroxide=90:5:5:40:5:150:1:3:2.
The preparation method of anti-flammability fluororesin:
The water of the perfluor caproic acid ammonium of 1g, 3g styrylphenol polyoxyethylene ether and 50g is mixed, obtains emulsifier aqueous solution, for subsequent use;
The water of 2g new decanoate ester peroxide and 100g is mixed, obtains initiator solution, divide equally I, II, III tri-parts, for subsequent use;
90gA, 5gB, 5gC, 40gD, 5gE and 40g emulsifier aqueous solution is mixed, obtains emulsified monomer, for subsequent use;
14g emulsifier aqueous solution and pH value conditioning agent sodium bicarbonate aqueous solution is added in autoclave, through degassed, inflated with nitrogen, after degassed, getting 62g emulsified monomer joins in reactor, after stirring is warmed up to 60 DEG C, add initiator solution I, start polymerization, liquid temperature is made to remain on 60 ~ 70 DEG C by cooling measure, 123g emulsified monomer and initiator solution II is added after reacting balance, within 3 ~ 3.5 hours, dropwise, after making liquid temperature keep 0.5 hour at 70 ~ 90 DEG C by cooling measure, initiator solution III is joined in reactor and continue reaction 10 hours, cooling, discharging obtains anti-flammability fluororesin.
The fluororesin-coated liquid preparation of anti-flammability, each component weight ratio is as follows:
Above-mentioned anti-flammability fluororesin: water-based aliphatic isocyanates Easaqua
tMxL 600=100:10.Stir after 15 minutes, leave standstill froth breaking.
Fluororesin-coated for anti-flammability liquid is applied to above own corona, clean PET base material, within 3 minutes, obtains 20 μm of thick weathering coatings 150 DEG C of dryings; In PET base material another side coating binder compound 25 μm of PVDF thin film, obtain solar battery back film.
Contrast sample:
With reference to number of patent application 201210254023.6, be coated with watersoluble fluorine paint in oneself one side of the clean also base material PET film of corona treatment through slot coated method, 150 DEG C of dryings 3 minutes, obtain the coating of 20 μm; Equally, after the drying of PET another side coating binder, compound 15 μm of polyolefin films (PE), obtain solar battery back film, survey its performance
Table 1: performance data table
| ? | Flame spread index | Fire-retardant rank | Weatherability | Hydrothermal aging | Solvent resistant wipes examination number of times |
| Embodiment 1 | 66 | HB | Pass through | Pass through | More than 200 |
| Embodiment 2 | 65 | HB | Pass through | Pass through | More than 200 |
| Embodiment 3 | 85 | HB | Pass through | Pass through | More than 200 |
| Embodiment 4 | 90 | HB | Pass through | Pass through | More than 200 |
| Embodiment 5 | 45 | HB | Pass through | Pass through | More than 200 |
| Embodiment 6 | 65 | HB | Pass through | Pass through | More than 200 |
| Comparative example | 120 | Be less than HB | Pass through | The a small amount of efflorescence thing in top layer | More than 200 |
In table, properties takes following method of testing
1. flame spread index: test with reference to ASTM E162-09 standard.
2. fire-retardant rank: test with reference to UL94 burning classification standard.
3. weather resistance test:
Use Q-Sum Xe-3-H type xenon lamp weathering test case, establishing criteria ISO 4892-2 tests.
4. hydrothermal aging test: two 85 hydrothermal aging test+85 DEG C, relative humidity 85%, 3000 hours.
5. solvent resistant wipes examination number of times: establishing criteria GB/T 23989-2009 tests.
Claims (6)
1. the environment protection solar cell notacoria of an excellent fireproof performance, comprise weathering layer, base material and adhesive linkage, it is characterized in that, the coating solution that described weathering layer is made up of anti-flammability fluororesin and curing agent obtains in substrate surface solidification, described anti-flammability fluororesin is five-membered copolymer, adopts following A, B, C, D, E five kinds of monomers to be polymerized:
A：?F
2C=CClF，
B：?CH
2=CH?COOCH
2CH
3，
C:CH
2=CH (CH
2) nOH, wherein n=2 ~ 10,
D:CH
2=CH OR
1, wherein, R
1=ethyl, isopropyl, normal-butyl, isobutyl group,
E: ethenyl cage model sesquialter siloxane,
The weight part ratio of five kinds of monomers, emulsifying agent, water, initator is: A:B:C:D:E: water: emulsifying agent: initator=50 ~ 90:5 ~ 10:5 ~ 20:40 ~ 80:3 ~ 11:150 ~ 250:1 ~ 6:0.2 ~ 2.
2. solar battery back film according to claim 1, is characterized in that, described emulsifying agent is the mixture of perfluorinated surfactant and non-fluorine surfactant.
3. solar battery back film according to claim 2, is characterized in that, described initator is dialkyl acyl class, new decanoate ester peroxide class, perfluor peroxide or potassium peroxydisulfate.
4. solar battery back film according to claim 3, is characterized in that, described curing agent is water-based aliphatic isocyanates curing agent.
5. solar battery back film according to claim 4, is characterized in that, the thickness of described weathering layer is 15 ~ 30 μm.
6. solar battery back film according to claim 5, is characterized in that, the thickness of described adhesive linkage is 5 ~ 30 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410408632.1A CN104218111B (en) | 2014-08-19 | A kind of environment-friendly solar cell back film of excellent fireproof performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410408632.1A CN104218111B (en) | 2014-08-19 | A kind of environment-friendly solar cell back film of excellent fireproof performance |
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| Publication Number | Publication Date |
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| CN104218111A true CN104218111A (en) | 2014-12-17 |
| CN104218111B CN104218111B (en) | 2017-01-04 |
Family
ID=
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110734525A (en) * | 2018-07-18 | 2020-01-31 | 浙江省化工研究院有限公司 | fluorine-containing cage type silsesquioxane modified polychlorotrifluoroethylene resin |
| CN111484575A (en) * | 2020-04-29 | 2020-08-04 | 青岛鸿志道防水工程技术有限责任公司 | In-situ modified PVC resin and application thereof in waterproof coiled material |
| WO2021068562A1 (en) * | 2019-10-11 | 2021-04-15 | 明冠新材料股份有限公司 | Photovoltaic module backboard containing poss-modified polymer |
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| US20130095326A1 (en) * | 2010-06-25 | 2013-04-18 | Basf Se | Coating composition for solar cell backsheet and solar cell backsheet |
| CN103155169A (en) * | 2010-10-07 | 2013-06-12 | 琳得科株式会社 | Protective sheet for solar cell module, and solar cell module |
| CN103421444A (en) * | 2013-05-14 | 2013-12-04 | 乐凯胶片股份有限公司 | Inflaming-retarding solar cell backsheet |
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| US20130095326A1 (en) * | 2010-06-25 | 2013-04-18 | Basf Se | Coating composition for solar cell backsheet and solar cell backsheet |
| CN103155169A (en) * | 2010-10-07 | 2013-06-12 | 琳得科株式会社 | Protective sheet for solar cell module, and solar cell module |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110734525A (en) * | 2018-07-18 | 2020-01-31 | 浙江省化工研究院有限公司 | fluorine-containing cage type silsesquioxane modified polychlorotrifluoroethylene resin |
| CN110734525B (en) * | 2018-07-18 | 2022-07-01 | 浙江省化工研究院有限公司 | Fluorine-containing cage type silsesquioxane modified polychlorotrifluoroethylene resin |
| WO2021068562A1 (en) * | 2019-10-11 | 2021-04-15 | 明冠新材料股份有限公司 | Photovoltaic module backboard containing poss-modified polymer |
| CN111484575A (en) * | 2020-04-29 | 2020-08-04 | 青岛鸿志道防水工程技术有限责任公司 | In-situ modified PVC resin and application thereof in waterproof coiled material |
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