CN102516927A - Two-component casting glue for capsulation of solar photovoltaic module and preparation method thereof - Google Patents
Two-component casting glue for capsulation of solar photovoltaic module and preparation method thereof Download PDFInfo
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- CN102516927A CN102516927A CN2011104278775A CN201110427877A CN102516927A CN 102516927 A CN102516927 A CN 102516927A CN 2011104278775 A CN2011104278775 A CN 2011104278775A CN 201110427877 A CN201110427877 A CN 201110427877A CN 102516927 A CN102516927 A CN 102516927A
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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 provides a two-component casting glue for capsulation of a solar photovoltaic module, which belongs to the field of high polymer sealing materials. The two-component casting glue comprises component A and component B; component A comprises the following raw materials of 100 to 120 parts by weight of alpha-omega-dihydroxy polydimethylsiloxane, 30 to 50 parts by weight of silicone oil, 80 to 100 parts by weight of a heat conducting filling material, 50 to 60 parts by weight of a flame retardant filling material and 30 to 50 parts by weight of nanometer calcium carbonate; and component B comprises the following raw materials of 100 to 120 parts by weight of silicone oil, 20 to 40 parts by weight of a cross-linking agent, 2 to 3 parts by weight of a coupling agent, 0.5 to 1 part by weight of a catalyst and 1 to 1.5 parts by weight of colored slurry. The two-component casting glue has the advantages of effectively promoted flame resistance, a substantially improved heat conducting effect, capacity of timely and effectively conducting out heat emitted by a bypass diode, excellent performance in inhibiting permeability of water vapor, excellent electrical properties and ideal weatherability and corrosion resistance. A recommended preparation method for the two-component casting glue is simple and terse and does not have strict requirements on a process and equipment.
Description
Technical field
The invention belongs to the high molecule sealing materials field, be specifically related to a kind of solar photovoltaic assembly encapsulation with two component joint sealants, and relate to its preparation method.
Technical background
Flourish along with the new forms of energy industry, emerging energies such as sun power, wind energy and bioenergy popularize the primary developmental tasks that becomes national governments, even risen to strategic height.And new forms of energy are used the solar energy generation technology that surely belongs to that medium velocity is the fastest, influence is the widest, and its technology maturity and tempo all lead and bounds ahead of other new forms of energy.Because solar energy generation technology uses the voltage pole of each group of cell panel low; For reaching certain voltage and electric current; The principle of therefore boosting through series connection, a bonding terminal box is used for the serial connection effect of circuit at the back of each piece cell panel; For prevent that solar cell from causing some of them and become the serious heating of load generating electric current impaired, that solar flare causes and strengthen suddenly and damage cell panel or initiation fire because can not get illumination owing to blocking under high light; Therefore at the two poles of the earth of solar module output terminal parallel connection bypass diode, play discharge process, with plan safety; Simultaneously, use because solar module belongs to out of doors, the environment for use condition is harsh, is directly exposed to shorten the work-ing life that makes crystal diode in the water vapour environment, influences the working life of whole assembly then.
One Chinese patent application numbers 200710029834.5 has been introduced a kind of autocatalysis cross-linking organosilicon seal glue and preparation method thereof; Its Application Areas is confined to the bonding of car light, bulb; Belong to the electronic product industry; Do not relate to the solar cell power generation The Application of Technology, relevant thermal conductivity values data are not described in its technical indicator detected value; And for example in two component silicone sealants of Chinese patent publication number CN1011768421A solar photovoltaic assembly and preparation method thereof a kind of two component sealing gum that the solar module frame is bonding and terminal box is bonding that are used for have been described; But this patent is when describing, and not mentioned use thermally conductive material reaches relevant detected value data.
And exactly because sealer is not proposed corresponding heat conduction requirement; Security incident and contingency question that the sealer functional defect that causes causes can not get good solution; Therefore, be badly in need of a kind of bypass diode of can either protecting of invention and do not corroded, have simultaneously again and when diode discharge produces heat, have good heat radiation, fire retardation by steam; Also must satisfy the demand of terminal box suitability for industrialized production simultaneously; Have good self-leveling can, surface drying speed, deeply-curing speed fast, the sealer of excellent environmental resistance is current main development tendency.
Summary of the invention
Task of the present invention provide a kind of have good self-leveling can, efficiently surface drying speed, deeply-curing speed, excellent weather resistance and have the thermal conductivity of standing out from one's fellows and solar photovoltaic assembly encapsulation that the heat that helps bypass diode is given out transmitted and used from the work-ing life that prolongs bypass diode to the external world with two component joint sealants.
Of the present invention also have a task to be to provide the preparation method of a kind of solar photovoltaic assembly encapsulation with two component joint sealants, and this method process step is few and preparation condition is not harsh and can ensure comprehensive embodiment of the technique effect of said joint sealant.
Task of the present invention is accomplished like this, and a kind of solar photovoltaic assembly encapsulation comprises A component and B component with two component joint sealants, and each raw material by following parts by weight of A component and B component constitutes:
The raw material of A component is:
100～120 parts of α-alpha, omega-dihydroxy polydimethyl siloxanes;
30～50 parts of silicone oil;
80～100 parts of heat conductive fillers;
50～60 parts of fire-retardant fillers;
30～50 parts of nano-calcium carbonates;
The raw material of B component is:
100～120 parts of silicone oil;
20～40 parts of linking agents;
2～3 parts of coupling agents;
0.5～1 part of catalyzer;
1～1.5 part in coloured slurry.
In concrete embodiment of the present invention, the weight part ratio of described A, B component is 6-8: 1.
In another concrete embodiment of the present invention, described silicone oil is dimethyl silicone oil, vinyl silicone oil or methyl ethylene silicone oil.
In another concrete embodiment of the present invention, described heat conductive filler be white powder and particle diameter to be 18-22nm and specific surface area be>=50m
2The nano aluminium oxide of/g.
Also have among the concrete embodiment of the present invention, described fire-retardant filler is active hydrogen Natural manganese dioxide and/or active aluminium hydroxide; Described nano-calcium carbonate is the acid-treated treated carbonates of process resin.
In of the present invention and then concrete embodiment, described linking agent is methyltrimethoxy silane, methyl three isobutyl ketone oximino silanes or vinyl three isobutyl ketone oximino silanes.
Of the present invention again more and among concrete embodiment, described coupling agent is one or more in SWS-F 221, γ-[2,3-epoxy third oxygen] propyl trimethoxy silicane and the γ-An Bingjisanyiyangjiguiwan.
In again of the present invention and then concrete embodiment, described catalyzer is di-n-butyl two LAURIC ACID 99 MIN tin, dibutyl tin acetate or dibutyl two stannous octoates; Described coloured paste color is black, redness or grey.
Of the present invention also have a task to accomplish like this, and a kind of solar photovoltaic assembly encapsulation may further comprise the steps with the preparation method of two component joint sealants:
A), produce the A component; With mediating in α-alpha, omega-dihydroxy polydimethyl siloxane 100-120 part, silicone oil 30-50 part, heat conductive filler 80-100 part, fire-retardant filler 50-60 part and the nano-calcium carbonate 30-50 part part adding vacuum kneader; The vacuum tightness of control kneader, kneading temperature and kneading time, obtain the A component;
B), produce the B component; Silicone oil 100-120 part, linking agent 20-40 part, coupling agent 2-3 part, catalyzer 0.5-1 part and coloured slurry 1-1.5 part put in the duplicate rows star impeller with rotation and revolution function stir; Control churning time, control rotational velocity and revolution speed obtain the B component.
In a concrete embodiment of the present invention, steps A) vacuum tightness described in is-0.06～-0.090MPa, described kneading temperature is 110-120 ℃, the described kneading time is 90-120min; Step B) churning time described in is 60-90min, and described rotational velocity is 400-550n/min; Described revolution speed is 40-50n/min.
Technical scheme provided by the invention is the flame retardant properties of lift-off seal glue effectively, reaches the V0 level; Through adding heat conductive filler, can improve heat-conducting effect significantly, its thermal conductivity values＞0.35W/mK can derive the heat that bypass diode distributed timely and effectively to the external world; It is excellent to suppress the steam permeable performance, the transmitance (g/m of water vapor
2D)＜1.5; Has excellent electric performance, volume specific resistance＞1 * 10
15Ω cm, voltage breakdown＞12kV/mm; Weathering resistance and corrodibility are desirable.Preparing method's technology of recommending is terse, and is not harsh to processing requirement and equipment.
Embodiment
Through the description of applicant to embodiment; To make technique effect of the present invention more become bright and clear; But embodiment is not the restriction to the present invention program, any according to the present invention program done only be form but not the variation of essence all should be regarded as the protection domain that the present invention advocates.
Embodiment 1:
Solar photovoltaic assembly encapsulation provided by the invention is following with the preparing method's of two component joint sealants step:
A), produce the A component, by weight than or the umber that weighs with 100 parts of α-alpha, omega-dihydroxy polydimethyl siloxanes, 30 parts of dimethyl silicone oils, white powder and particle diameter to be 18-22nm and specific surface area be>=50m
280 parts of the nano aluminium oxides of/g; Fire-retardant filler is to mediate in active aluminium hydroxide and active hydrogen Natural manganese dioxide each 25 parts (adding up to 50 parts) and 30 parts of addings of the acid-treated nano-calcium carbonate of the process resin vacuum kneader; The vacuum degree control of kneader at-0.07MPa, mediate 110 ℃ of temperature; Mediate copolymer-1 00min, make the A component;
B), produce the B component; With 100 parts of vinyl silicone oils, 20 parts of linking agent methyltrimethoxy silanes, coupling agent SWS-F 221 and γ-[2; 3-epoxy third oxygen] propyl trimethoxy silicane by 1: 1 composite back 2 parts; 0.5 part in catalyzer di-n-butyl two LAURIC ACID 99 MIN tin, the trade mark that for example preferably opens the production and sales of power auxiliary chemicals ltd by Changshu City, Jiangsu Province, China that is obtained by commercially available channel are that YL-I type color is that red coloured slurry is put into for 1 part in the duplicate rows star impeller with revolution and rotation function and stirred rotational velocity 450n/min, revolution speed 45n/min; Blending and stirring 70min obtains the B component.Coloured slurry is used to distinguish A, B component.
A, B component are by weight than A during actual the use: B=7: 1 mixes use.
Embodiment 2:
A), produce the A component, by weight than or parts by weight with 110 parts of α-alpha, omega-dihydroxy polydimethyl siloxanes, 40 parts of vinyl silicone oils; 90 parts in aluminum oxide; 25 parts in 30 parts of fire-retardant filler active aluminium hydroxides and active hydrogen Natural manganese dioxide add up to 55 parts, and nano-calcium carbonate adds vacuum kneader for 40 parts, the vacuum degree control of kneader at-0.08MPa, mediate 120 ℃ of temperature; Mediate copolymerization 90min, make the A component;
B), produce the B component, with 110 parts of vinyl silicone oils, 30 parts of linking agent methyltrimethoxy silanes; Coupling agent γ-[2,3-epoxy third oxygen] propyl trimethoxy silicane and γ-An Bingjisanyiyangjiguiwan by 1: 1 composite back 2.5 parts, 1 part of catalyzer dibutyl tin acetate; The trade mark is that YL-II type color is in 1.5 parts of inputs of coloured slurry duplicate rows star impeller of black; Rotational velocity 400n/min and revolution speed 50n/min, blending and stirring 65min obtains the B component.All the other are all with the description to embodiment 1.
A, B component are by weight than A during actual the use: B=6: 1 mixes use.
Embodiment 3:
A, produce the A component, by weight than or parts by weight with 120 parts of α-alpha, omega-dihydroxy polydimethyl siloxanes, 50 parts of methyl ethylene silicone oil; 100 parts in aluminum oxide; 56 parts of fire-retardant filler Marinco Hs, 50 parts of nano-calcium carbonates add vacuum kneader, the vacuum degree control of kneader at-0.06MPa, mediate 115 ℃ of temperature; Mediate copolymer-1 05min, make the A component;
B, produce the B component, with 120 parts of vinyl silicone oils, 25 parts of linking agent methyltrimethoxy silanes; 2.6 parts of coupling agent γ-[2,3-epoxy third oxygen] propyl trimethoxy silicane, 0.7 part of catalyzer dibutyl tin acetate; The trade mark is that gray coloured slurry of YL-II-A type drops in the duplicate rows star impeller rotational velocity 550n/min, revolution speed for 1.2 parts; 40n/min, blending and stirring 60min obtains the B component.All the other are all with the description to embodiment 1.
During actual the use, A, B component are by weight than A: B=6.5: 1 mixes use.
Embodiment 4:
A), produce the A component, by weight than or parts by weight with 115 parts of α-alpha, omega-dihydroxy polydimethyl siloxanes, 35 parts of methyl-silicone oils; 95 parts in aluminum oxide; 53 parts in fire-retardant filler white lake, 35 parts of nano-calcium carbonates add vacuum kneader, the vacuum degree control of kneader at-0.09MPa, mediate 105 ℃ of temperature; Mediate copolymerization 95min, make the A component;
B), produce the B component, with 115 parts of methyl ethylene silicone oil, 25 parts of linking agent vinyl three isobutyl ketone oximino silanes; 3 parts of coupling agent γ-An Bingjisanyiyangjiguiwans, 1.1 parts in catalyzer di-n-butyl two LAURIC ACID 99 MIN tin, self-control grey slurry drops in the duplicate rows star impeller for 1.1 parts; Rotational velocity 500n/min; Revolution speed 46n/min, blending and stirring 90min obtains the B component.All the other are all with the description to embodiment 1.
During actual the use by weight than A: B=7.5: 1 mixes use.
Embodiment 5:
A), produce the A component, by weight than or parts by weight with 105 parts of α-alpha, omega-dihydroxy polydimethyl siloxanes, 45 parts of vinyl silicone oils; 85 parts in aluminum oxide; Fire-retardant filler Marinco H, white lake by 1: 1 composite back 58 parts, nano-calcium carbonate adds vacuum kneader for 45 parts, the vacuum degree control of kneader at-0.07MPa, mediate 112 ℃ of temperature; Mediate copolymer-1 20min, make the A component;
B), produce the B component, with 118 parts of methyl ethylene silicone oil, 23 parts of linking agent methyl three isobutyl ketone oximino silanes; Coupling agent SWS-F 221, γ-An Bingjisanyiyangjiguiwan by 1: 1 composite back 2.8 parts, 1.1 parts of catalyzer dibutyl tin acetates, the self-control black paste drops in the duplicate rows star impeller for 1.3 parts; Rotational velocity 480n/min; Revolution speed 43n/min, blending and stirring 80min obtains the B component.All the other are all with the description to embodiment 1.
During actual the use by weight than A: B=7: 1 mixes use.
Comparative example 1:
100 parts of α-alpha, omega-dihydroxy polydimethyl siloxanes, 5 parts of YSR 3286s, 100 parts of active nano calcium, 20 parts of Meteorological Act silicon-dioxide, 0.01 part of Marinco H, white titanium pigment are joined in the impeller for 1 part; In 90 ℃ of temperature; Vacuum tightness 0.01MPa is dehydration 4h down, makes the A component after the cooling;
Gather 0.5 part of triethoxyl silane, 1 part of 3-Racemic glycidol propyl trimethoxy silicane, N-(β-aminoethyl)-1 part of α-aminopropyl trimethoxysilane, γ-1 part of aminomethyl triethoxyl silane, 0.5 part in silane of methyl ethylene (N-methyl kharophen), 2 parts of titanium propanolates, dibutyl tin dilaurate and join in the sealed vessel for 1 part, obtain the B component after mixing;
To appeal A, B component by weight A: B=100: 8 mix, behind deaeration 5min under the vacuum tightness 0.01Mpa, obtain two component silicone sealants.Table 1 is seen in the contrast of product salient features.
Comparative example 2:
With 100 parts of α-alpha, omega-dihydroxy polydimethyl siloxanes, 30 parts of YSR 3286s, 70 parts of silicon powders, heavyly decide 20 parts of method WHITE CARBON BLACKs, 10 parts in white lake, white titanium pigment and join in the impeller for 10 parts; In 120 ℃ of temperature; Vacuum tightness 0.006MPa is dehydration 3h down, makes the A component after the cooling;
8 parts of methyl silicates, N-(β-aminoethyl)-0.2 part of α-aminopropyl trimethoxysilane, 1 part in silane of dimethyl-two (N-methyl kharophen), 3 parts of titanate chelates, dibutyl tin dilaurate join in the sealed vessel for 2 parts, obtain the B component after mixing;
To appeal A, B component by weight A: B=100: 10 mix, behind deaeration 10min under the vacuum tightness 0.008Mpa, obtain two component silicone sealants.Table 1 is seen in the contrast of product salient features.
By the encapsulation of the resulting solar photovoltaic cell junction box of the foregoing description 1-5 with the key technical indexes of two component joint sealants as: hardness is tested by GB/T531.1-2008; Volume specific resistance is tested by GB/T1692-2008; Voltage breakdown is tested by GB/T1695-2005; Thermal conductivity is tested by GB/T3399-1992; Flame retardant properties is tested by GB/T2408-2008; Wet electric leakage performance is tested by GB6553-2003.Above-mentioned all technical indicators are by shown in the following table:
Claims (10)
1.
A kind of solar photovoltaic assembly encapsulation comprises A component and B component with two component joint sealants, it is characterized in that each raw material by following parts by weight of A component and B component constitutes:
The raw material of A component is:
100 ~ 120 parts of α-alpha, omega-dihydroxy polydimethyl siloxanes;
30 ~ 50 parts of silicone oil;
80 ~ 100 parts of heat conductive fillers;
50 ~ 60 parts of fire-retardant fillers;
30 ~ 50 parts of nano-calcium carbonates;
The raw material of B component is:
100 ~ 120 parts of silicone oil;
20 ~ 40 parts of linking agents;
2 ~ 3 parts of coupling agents;
0.5 ~ 1 part of catalyzer;
1 ~ 1.5 part in
coloured slurry.
2.
solar photovoltaic assembly encapsulation according to claim 1 is with two component joint sealants, and the weight part ratio that it is characterized in that described A, B component is 6-8: 1.
3.
solar photovoltaic assembly encapsulation according to claim 1 is characterized in that with two component joint sealants described silicone oil is dimethyl silicone oil, vinyl silicone oil or methyl ethylene silicone oil.
4. the encapsulation of
solar photovoltaic assembly according to claim 1 is with two component joint sealants, it is characterized in that described heat conductive filler be white powder and particle diameter be that 18-22nm is the nano aluminium oxide of>=50 ㎡/g with specific surface area.
5.
solar photovoltaic assembly encapsulation according to claim 1 is characterized in that with two component joint sealants described fire-retardant filler is active hydrogen Natural manganese dioxide and/or active aluminium hydroxide; Described nano-calcium carbonate is the acid-treated treated carbonates of process resin.
6.
solar photovoltaic assembly encapsulation according to claim 1 is characterized in that with two component joint sealants described linking agent is methyltrimethoxy silane, methyl three isobutyl ketone oximino silanes or vinyl three isobutyl ketone oximino silanes.
7.
solar photovoltaic assembly encapsulation according to claim 1 is with two component joint sealants; It is characterized in that described coupling agent is one or more in SWS-F 221, γ-[2,3-epoxy third oxygen] propyl trimethoxy silicane and the γ-An Bingjisanyiyangjiguiwan.
8.
solar photovoltaic assembly encapsulation according to claim 1 is characterized in that with two component joint sealants described catalyzer is di-n-butyl two LAURIC ACID 99 MIN tin, dibutyl tin acetate or dibutyl two stannous octoates; Described coloured paste color is black, redness or grey.
9.
A kind of solar photovoltaic assembly encapsulation as claimed in claim 1 is characterized in that may further comprise the steps with the preparation method of two component joint sealants:
A), produce the A component; With mediating in α-alpha, omega-dihydroxy polydimethyl siloxane 100-120 part, silicone oil 30-50 part, heat conductive filler 80-100 part, fire-retardant filler 50-60 part and the nano-calcium carbonate 30-50 part part adding vacuum kneader; The vacuum tightness of control kneader, kneading temperature and kneading time, obtain the A component;
B), produce the B component; Silicone oil 100-120 part, linking agent 20-40 part, coupling agent 2-3 part, catalyzer 0.5-1 part and coloured slurry 1-1.5 part put in the duplicate rows star impeller with rotation and revolution function stir; Control churning time, control rotational velocity and revolution speed obtain the B component.
10.
Solar photovoltaic assembly encapsulation according to claim 9 is with the preparation method of two component joint sealants; It is characterized in that steps A) described in vacuum tightness be-0.06 ~-0.090MPa; Described kneading temperature is 110-120 ℃, and the described kneading time is 90-120min; Step B) churning time described in is 60-90min, and described rotational velocity is 400-550n/min; Described revolution speed is 40-50n/min
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| CN103694949A (en) * | 2014-01-10 | 2014-04-02 | 广州市高士实业有限公司 | Halogen-free flame retardant heat-conducting organic silicon sealing material for solar photovoltaic module and preparation of material |
| CN103965826A (en) * | 2013-01-25 | 2014-08-06 | 锋泾（中国）建材集团有限公司 | Fire retardation type double component silicone structure adhesive |
| CN104877621A (en) * | 2015-06-04 | 2015-09-02 | 绵阳惠利电子材料有限公司 | Polyorganosilicone sealant used for vehicle lamp assembly and preparing method thereof |
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Application publication date: 20120627 |