CN108641123A - The nanocrystalline organic carrier preparation method of containing cellulose and the application in silver paste - Google Patents

The nanocrystalline organic carrier preparation method of containing cellulose and the application in silver paste Download PDF

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CN108641123A
CN108641123A CN201810264909.6A CN201810264909A CN108641123A CN 108641123 A CN108641123 A CN 108641123A CN 201810264909 A CN201810264909 A CN 201810264909A CN 108641123 A CN108641123 A CN 108641123A
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organic carrier
silver paste
front side
preparation
cnc
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陈波
王艳云
刘舒
韩世生
马跃跃
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Shandong State Building Colloidal Material Co Ltd
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Shandong State Building Colloidal Material Co Ltd
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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
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/02—Cellulose; Modified cellulose
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/14—Conductive material dispersed in non-conductive inorganic material
    • H01B1/16—Conductive material dispersed in non-conductive inorganic material the conductive material comprising metals or alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20—Conductive material dispersed in non-conductive organic material
    • H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • 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
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/02—Details
    • H01L31/0224—Electrodes
    • H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
    • H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Inorganic Chemistry (AREA)
  • Conductive Materials (AREA)

Abstract

The organic carrier preparation method containing Cellulose nanocrystal that the invention discloses a kind of, the carrier is made of resin 1~5%, auxiliary agent 1.5~6%, organic solvent 59~92.5%, Cellulose nanocrystal hydrogel 5~30%, additionally provide the preparation method that a kind of carrier prepares solar cell front side silver paste, organic carrier 5~9%, glass powder 2~3%, silver powder 86~90%, solvent/auxiliary agent 1~2%.It is nanocrystalline (CNC) that containing cellulose is added in the present invention in organic carrier, and the content by changing CNC in organic carrier, that is the ratio of CNC and conventional organic carrier improves the printing performance of front side silver paste, improve the depth-width ratio of grid line, it does not cave in sintering process, improves sintered electrical property.There is good printing performance using the solar cell front side silver paste prepared by the organic carrier in the present invention, after sintering, the depth-width ratio of grid line is big, fill factor is big, series resistance is small, cell conversion efficiency is high.

Description

The nanocrystalline organic carrier preparation method of containing cellulose and the application in silver paste
Technical field
The present invention relates to a kind of organic carrier that containing cellulose is nanocrystalline, preparation method and the application in silver paste, tools Body is related to organic carrier, preparation method and the answering in solar cell front side silver paste of a kind of containing cellulose nanocrystalline (CNC) With further relating to the preparation method of above-mentioned solar cell front side silver paste.Belong to photovoltaic technology field.
Background technology
Cellulose nanocrystal (CNC) is a kind of nano level cellulose extracted from natural fiber, it not only has There are the feature of nano particle, such as high length-diameter ratio, high bending strength, high shear modulus, also there is some unique intensity and light Performance is learned, is had broad application prospects.CNC can be used as a kind of very bio-safety nano material, for reinforcing difference Polymeric system, CNC have highly dissoluble and compatibility in water；CNC can also be used as additive, such as improve material Caking property, stiffness, tensile strength and corrosion resistance etc.；CNC may be used as the filler of nanocomposite to improve machine Tool performance and barrier property.CNC also is used as the structural unit that rupture of membranes, aeroge, selectivity penetrate film, or is bonded by itself As a kind of mechanical reinforcing agent to low concentration polymer electrolyte.CNC, which is also used as a kind of organic carrier, to be used for disperseing it His active nano grain nano-particle, to improve optical property, barrier properties for gases and catalytic activity etc..
With the worsening shortages of non-renewable energy resources, the application of regenerative resource gets more and more people's extensive concerning, especially Solar energy.Therefore, solar cell starts extensive use.Solar cell front side silver paste is the key that production solar cell material One of material, the general method using high speed, high resolution silk-screen printing are printed on the silicon substrate of coating antireflective coating, warp Electrode is formed after crossing drying and high temperature sintering.Solar cell front side silver paste is mainly by silver powder, glass powder, organic carrier and auxiliary agent Composition.In order to make solar cell obtain a high photoelectric conversion efficiency, this requires positive silver electrode " thin grid are intensive ".This is just It is required that front side silver paste in filament printing process it is easy cross net, levelability is good, thixotropy is good (i.e. surface pseudoplastic behavior)；Specific manifestation is just It is that slurry is quickly from discharging and return back to initial configuration between mesh after printing, and the grid line printed out is not in sprawl and collapse It collapses.But often will appear avalanche after front side silver paste printing-sintering, or even broken string.
In order to make front side silver paste reach the requirement of filament printing, CNC hydrogels are added in organic carrier the present invention, to carry The printing performance of high silver paste so that in silver paste printing process it is easy cross net, thixotropy is good, grid line depth-width ratio is big.
Invention content
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, making front side silver paste reach the requirement of filament printing, An excellent printing adaptability is obtained, provides a kind of organic carrier and preparation method thereof that containing cellulose is nanocrystalline, and carry The preparation method of the solar cell front side silver paste containing above-mentioned organic carrier is supplied.
To achieve the above object, the present invention uses following technical proposals：
A kind of organic carrier of containing cellulose nanocrystalline (CNC), includes the component of following weight percent：Cellulose nanometer Brilliant hydrogel 5-30%, organic solvent 59-92.5%, auxiliary agent 1.5-6%, resin：1-5%.
The solid content of the Cellulose nanocrystal hydrogel is 3%, density 1.00-1.10g/cm3, viscosity：2350± 50cp(25℃)。
The organic solvent is the one or several kinds in alcohols, ethers, esters；
The resin is the one or several kinds in ethyl cellulose, polyurethane, acrylic resin.
Preferably, the alcohols is in diethylene glycol, terpinol, ethylene glycol, triethylene glycol, propylene glycol, glycerine, benzylalcohol etc. One or several kinds in higher boiling alcohols；
The esters are diethylene glycol dibutyl ester, alcohol ester 12, turpentine oil, DBE, isophorone diisocyanate, three second two One or several kinds in alcohol diacetate esters etc. in higher boiling esters；
The ethers is butyl, triethylene glycol butyl ether, propylene glycol monomethyl ether, dimethyl ether, ethylene glycol One or several kinds in diglycidyl ether, butyl glycol ether etc. in higher boiling ethers.
A kind of preparation method of the organic carrier of containing cellulose nanocrystalline (CNC), includes the following steps：
(1) it after mixing auxiliary agent, organic solvent, resin according to weight percent, after being heated to 180 DEG C of dissolvings, is cooled to Room temperature obtains conventional organic carrier；
(2) conventional organic carrier is mixed by weight percentage with CNC, CNC organic carriers is obtained after stirring evenly.
A kind of preparation method of the solar cell front side silver paste containing above-mentioned CNC organic carriers, the specific step of this method Suddenly it is：By solvent or auxiliary agent that weight percent is 1~2%, weight percent be 5~9% CNC organic carriers, weight The silver powder that glass powder that percentage is 2~3%, weight percent are 86~90% is mixed evenly, by mixture in three rollers Fineness is dispersed on machine as 10 μm hereinafter, crossing after 400 mesh filter screens to get the front side silver paste haveing excellent performance.
Preferably, the silver powder is silver powder 1# and silver powder 2# according to mass ratio 1:9~4:6 mix；The silver powder 1# It is micron level spherical silver powder with silver powder 2#, the grain size of the silver powder 1# is 1000~1800 μm, and the grain size of the silver powder 2# is 2000~3000 μm.
Preferably, the glass powder is cryogenic glass powder.
Preferably, the solvent is oleyl amine, oleic acid, butyl, alcohol ester-12, turpentine oil, terpinol, diethyl two One or several kinds in alcohol monobutyl ether acetate, ethylene glycol, triethylene glycol monobutyl ether acetate.
Preferably, the auxiliary agent is the one or several kinds in plasticizer, thixotropic agent, levelling agent and lubricant；The increasing Modeling agent is a kind of or several in citric acid ester type, phthalate, benzoates, aliphatic dibasic acid ester etc. Kind；
The thixotropic agent is the one or several kinds in polyethylene wax, polyamide wax, polypropylene wax；
The levelling agent is the one or several kinds in polyether siloxane copolymer, polyacrylic acid；
The lubricant is the one or several kinds in oleamide, fatty acid amide, zinc stearate.
Beneficial effects of the present invention：
The present invention is added that containing cellulose is nanocrystalline (CNC) in organic carrier, and by changing containing for CNC in organic carrier Amount, the i.e. ratio of CNC and conventional organic carrier improve the printing performance of front side silver paste, improve the depth-width ratio of grid line, are being sintered It does not cave in the process, improves sintered electrical property.Utilize the solar battery front side prepared by the organic carrier in the present invention Silver paste has good printing performance, and after sintering, the depth-width ratio of grid line is big, fill factor is big, series resistance is small, cells convert effect Rate is high.
Specific implementation mode
With reference to embodiment, the present invention will be further elaborated, it should explanation, following the description merely to It explains the present invention, its content is not defined.
Cellulose nanocrystal hydrogel is purchased from Melodea companies, gelled, solid content 3%, density in the present invention： 1.00-1.10g/cm3, viscosity：2350±50cp(25℃).
The formula of 1 CNC organic carriers of table
Embodiment 1
A kind of organic carrier of containing cellulose nanocrystalline (CNC), includes the component of following weight percent：Cellulose nanometer Brilliant hydrogel 10%, organic solvent 72%, auxiliary agent 13.5%, resin 4.5%, specific formula composition are shown in Table 1.
Preparation method is：
(1) according to weight percent shown in table 1 by alcohol ester-12, butyl acetate, tributyl citrate, Butyl, dibutyl phthalate, ethyl cellulose (n=100), ethyl cellulose (n=300), polyamide wax, After oleamide mixing, after being heated to 180 DEG C of dissolvings, it is cooled to room temperature, obtains conventional organic carrier 1；
(2) conventional organic carrier and CNC are pressed 9:1 weight ratio mixing, obtains CNC organic carriers 1 after stirring evenly.
Embodiment 2
A kind of organic carrier of containing cellulose nanocrystalline (CNC), includes the component of following weight percent：Cellulose nanometer Brilliant hydrogel 20%, organic solvent 64%, auxiliary agent 12%, resin 4%, specific formula composition are shown in Table 1.
Preparation method is：
(1) according to weight percent shown in table 1 by alcohol ester-12, butyl acetate, tributyl citrate, Butyl, dibutyl phthalate, ethyl cellulose (n=100), ethyl cellulose (n=300), polyamide wax, After oleamide mixing, after being heated to 180 DEG C of dissolvings, it is cooled to room temperature, obtains conventional organic carrier 1；
(2) conventional organic carrier and CNC are pressed 8:2 weight ratio mixing, obtains CNC organic carriers 2 after stirring evenly.
Embodiment 3
A kind of organic carrier of containing cellulose nanocrystalline (CNC), includes the component of following weight percent：Cellulose nanometer Brilliant hydrogel 30%, organic solvent 56%, auxiliary agent 10.5%, resin 3.5%, specific formula composition are shown in Table 1.
Preparation method is：
(1) according to weight percent shown in table 1 by alcohol ester-12, butyl acetate, tributyl citrate, Butyl, dibutyl phthalate, ethyl cellulose (n=100), ethyl cellulose (n=300), polyamide wax, After oleamide mixing, after being heated to 180 DEG C of dissolvings, it is cooled to room temperature, obtains conventional organic carrier 2；
(2) conventional organic carrier and CNC are pressed 7:3 weight ratio mixing, obtains CNC organic carriers 3 after stirring evenly.
Embodiment 4
A kind of organic carrier of containing cellulose nanocrystalline (CNC), includes the component of following weight percent：Cellulose nanometer Brilliant hydrogel 10%, organic solvent 77.4%, auxiliary agent 8.1%, resin 4.5%, specific formula composition are shown in Table 1.
Preparation method is：
(1) according to weight percent shown in table 1 by butyl acetate, butyl, alcohol ester-12, After tributyl citrate, polyamide wax, fatty acid amide, ethyl cellulose (n=100), ethyl cellulose (n=300) mixing, After being heated to 180 DEG C of dissolvings, it is cooled to room temperature, obtains conventional organic carrier 2；
(2) conventional organic carrier and CNC are pressed 9:1 weight ratio mixing, obtains CNC organic carriers 4 after stirring evenly.
Embodiment 5
A kind of organic carrier of containing cellulose nanocrystalline (CNC), includes the component of following weight percent：Cellulose nanometer Brilliant hydrogel 20%, organic solvent 68.8%, auxiliary agent 7.2%, resin 4%, specific formula composition are shown in Table 1.
Preparation method is：
(1) according to weight percent shown in table 1 by butyl acetate, butyl, alcohol ester-12, After tributyl citrate, polyamide wax, fatty acid amide, ethyl cellulose (n=100), ethyl cellulose (n=300) mixing, After being heated to 180 DEG C of dissolvings, it is cooled to room temperature, obtains conventional organic carrier 2；
(2) conventional organic carrier and CNC are pressed 8:2 weight ratio mixing, obtains CNC organic carriers 5 after stirring evenly.
Embodiment 6
A kind of organic carrier of containing cellulose nanocrystalline (CNC), includes the component of following weight percent：Cellulose nanometer Brilliant hydrogel 30%, organic solvent 60.2%, auxiliary agent 6.3%, resin 3.5%, specific formula composition are shown in Table 1.
Preparation method is：
(1) according to weight percent shown in table 1 by butyl acetate, butyl, alcohol ester-12, After tributyl citrate, polyamide wax, fatty acid amide, ethyl cellulose (n=100), ethyl cellulose (n=300) mixing, After being heated to 180 DEG C of dissolvings, it is cooled to room temperature, obtains conventional organic carrier 2；
(2) conventional organic carrier and CNC are pressed 7:3 weight ratio mixing, obtains CNC organic carriers 6 after stirring evenly.
Viscosity test is carried out to CNC organic carriers 1~6, test temperature is 25 DEG C, and rotating speed is respectively 10rmp and 100rmp, Testing time is 1min；Using rheometer test rheological data, test method is that 0-60/s continues to increase shear rate, and the time is 60s, reduction of speed curve are time 60s, and shear rate is down to 0 by 60/s, chooses reading when 1/s, 10/s, 50/s, 119/s.It surveys Test result is shown in Table 2.
The viscosity and rheology of 2 CNC organic carriers of table characterize
Test event Viscosity/cP (10rpm/100rpm) Rheological data (Pas)
CNC hydrogels 7760/888 18.2/2.8/0.55/10.1
Conventional organic carrier 1 20000/1700 8522.3/23.7/2.7/37
CNC organic carriers 1 9000/1000 108.5/10.1/1.3/33.8
CNC organic carriers 2 7000/800 65.2/7.9/0.9/37.8
CNC organic carriers 3 5000/700 329.5/9.7/0.9/21.1
Conventional organic carrier 2 4000/500 43777.3/20.5/1.6/22.3
CNC organic carriers 4 2000/200 676.2/8.4/1.0/8.0
CNC organic carriers 5 2000/300 1326.0/25.6/0.4/7.0
CNC organic carriers 6 2000/300 5671.5/29.2/1.8/24.5
Organic carrier containing CNC viscosity compared with conventional organic carrier reduces, and can be seen that shearing from rheological data Rate it is near zero when, viscosity has apparent rising, and the carrier containing CNC is preferably to prepare front side silver paste.
Embodiment 7
The preparation method of solar cell front side silver paste containing CNC organic carriers, the specific steps are：Weigh quality percentage Than for 7% glass powder of CNC organic carriers 1,2.2%, 26.6% silver powder 1#, 62.6% silver powder 2#, 0.3% oil Amine, 1% alcohol ester-12,0.3% turpentine oil are mixed evenly, and mixture is dispersed to 10 μm hereinafter, mistake on three-roller To get the front side silver paste A haveing excellent performance after 400 mesh filter screens.
Embodiment 8
The preparation method of solar cell front side silver paste containing CNC organic carriers, the specific steps are：Weigh quality percentage Than for 7% glass powder of CNC organic carriers 4,2.2%, 26.6% silver powder 1#, 62.2% silver powder 2#, 0.3% oil Amine, 1% alcohol ester-12,0.3% turpentine oil are mixed evenly, and mixture is dispersed to 10 μm hereinafter, mistake on three-roller To get the front side silver paste B haveing excellent performance after 400 mesh filter screens.
Embodiment 9
The preparation method of solar cell front side silver paste containing CNC organic carriers, the specific steps are：Weigh quality percentage Than for 7% glass powder of conventional organic carrier 1,2.2%, 26.6% silver powder 1#, 62.2% silver powder 2#, 0.3% oil Amine, 1% alcohol ester-12,0.3% turpentine oil are mixed evenly, and mixture is dispersed to 10 μm hereinafter, mistake on three-roller To get front side silver paste C after 400 mesh filter screens.
Embodiment 10
The preparation method of solar cell front side silver paste containing CNC organic carriers, the specific steps are：Weigh quality percentage Than for 7% glass powder of conventional organic carrier 2,2.2%, 26.6% silver powder 1#, 62.2% silver powder 2#, 0.5% oil Amine, 1% alcohol ester-12,0.5% turpentine oil are mixed evenly, and mixture is dispersed to 10 μm hereinafter, mistake on three-roller To get front side silver paste D after 400 mesh filter screens.
The viscosity of silver paste A, B, C, D and rheological property are characterized, comparing result is shown in Table 3.
The viscosity and rheological data of table 3 front side silver paste A, B, C, D
Test event Viscosity/cP (10rpm/100rpm) Rheological data (Pas)
Silver paste A 146e3/42.7e3 134/31/15.5/67
Silver paste B 489e3/67.6e3 830/140/33/292
Silver paste C 192e3/52e3 334/58/22/89
Silver paste D 567e3/547e3 1375/138/33/292
Electrical property will be tested after front side silver paste A, B, C, D printing, the results are shown in Table 4.
Electrical property after 4 front side silver paste A, B, C, D printing of table
Test event Pmpp/% Uoc/V Isc/A Rs/Ω Rsh/Ω FF NCell Irev2/A Print weight/g
Silver paste A 4.579 0.633 9.205 0.0030 106.554 78.857 0.192 0.145 0.125
Silver paste B 4.522 0.630 9.127 0.0027 68.549 78.976 0.190 0.306 0.112
Silver paste C 4.586 0.631 9.211 0.0036 89.391 78.620 0.192 0.322 0.137
Silver paste D 4.532 0.630 9.101 0.0029 47.182 78.595 0.189 0.368 0.114
The front side silver paste prepared using the organic carrier containing CNC it can be seen from table 3 and table 4, print weight is low when printing, Grid line is uniformly without apparent avalanche phenomenon after sintering, and excellent electrical property.
Although the above-mentioned specific implementation mode to the present invention is described, not to the limit of the scope of the present invention System, based on the technical solutions of the present invention, those skilled in the art need not make the creative labor can make it is each Kind modification or deformation are still within protection scope of the present invention.

Claims (10)

1. a kind of organic carrier that containing cellulose is nanocrystalline, which is characterized in that include the component of following weight percent：Cellulose Nanocrystalline hydrogel 5~30%, organic solvent 59~92.5%, auxiliary agent 1.5~6%, resin 1~5%.
2. a kind of nanocrystalline organic carrier of containing cellulose according to claim 1, which is characterized in that the organic solvent For the one or several kinds in alcohols, ethers, esters；The resin is one in ethyl cellulose, polyurethane, acrylic resin Kind is several.
3. a kind of nanocrystalline organic carrier of containing cellulose according to claim 1, which is characterized in that
The alcohols is a kind of or several in diethylene glycol, terpinol, ethylene glycol, triethylene glycol, propylene glycol, glycerine, benzylalcohol Kind；
The esters are diethylene glycol dibutyl ester, alcohol ester 12, turpentine oil, DBE, isophorone diisocyanate, triethylene glycol two One or several kinds in acetic acid esters；
The ethers is butyl, triethylene glycol butyl ether, propylene glycol monomethyl ether, dimethyl ether, the contracting of ethylene glycol two One or several kinds in water glycerin ether, butyl glycol ether.
4. the preparation method of organic carrier described in claim 1, which is characterized in that include the following steps：
(1) it after mixing auxiliary agent, organic solvent, resin according to weight percent, after being heated to 180 DEG C of dissolvings, is cooled to room temperature, Obtain conventional organic carrier；
(2) conventional organic carrier is mixed by weight percentage with Cellulose nanocrystal, obtaining containing cellulose after stirring evenly receives The organic carrier of meter Jing.
5. a kind of preparation method of the solar cell front side silver paste containing organic carrier described in claim 1, which is characterized in that This method the specific steps are：It is 5~9% to contain by solvent or auxiliary agent that weight percent is 1~2%, weight percent The silver powder that glass powder that organic carrier, the weight percent of Cellulose nanocrystal are 2~3%, weight percent are 86~90% It is mixed evenly, mixture is dispersed to 10 μm of fineness hereinafter, excellent to get performance after crossing 400 mesh filter screens on three-roller Different front side silver paste.
6. the preparation method of solar cell front side silver paste according to claim 5, which is characterized in that the silver powder is by silver Powder 1# and silver powder 2# are according to mass ratio 1:9~4:6 mix；The silver powder 1# and silver powder 2# is micron level spherical silver powder, institute The grain size for stating silver powder 1# is 1000~1800 μm, and the grain size of the silver powder 2# is 2000~3000 μm.
7. the preparation method of solar cell front side silver paste according to claim 5, which is characterized in that the glass powder is Cryogenic glass powder.
8. the preparation method of solar cell front side silver paste according to claim 5, which is characterized in that the solvent is oil Amine, oleic acid, butyl, alcohol ester-12, turpentine oil, terpinol, butyl acetate, ethylene glycol, triethylene glycol One or several kinds in monobutyl ether acetate.
9. preparation method or right described in the nanocrystalline organic carrier of containing cellulose according to claim 1, claim 4 It is required that the preparation method of the solar cell front side silver paste described in 5, which is characterized in that the auxiliary agent is plasticizer, thixotropic agent, stream One or several kinds in flat agent and releasing agent.
10. the nanocrystalline organic carrier of containing cellulose according to claim 9, preparation method or solar cell front side silver The preparation method of slurry, which is characterized in that the plasticizer is citric acid ester type, phthalate, benzoates, fat One or several kinds in race's binary acid esters；
The thixotropic agent is the one or several kinds in polyethylene wax, polyamide wax, polypropylene wax；
The levelling agent is the one or several kinds in polyether siloxane copolymer, polyacrylic acid；
The lubricant is the one or several kinds in oleamide, fatty acid amide, zinc stearate.
CN201810264909.6A 2018-03-28 2018-03-28 The nanocrystalline organic carrier preparation method of containing cellulose and the application in silver paste Pending CN108641123A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
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CN109433191A (en) * 2018-11-09 2019-03-08 济南大学 A method of cohering powder catalyst
CN110819185A (en) * 2019-10-24 2020-02-21 常州市武进新邦涂料有限公司 XB-S-water-soluble high-reflection photovoltaic backboard glass paint and application scheme thereof
CN113823436A (en) * 2021-08-18 2021-12-21 洋紫荆油墨(中山)有限公司 Wear-resistant silver paste and preparation method and application thereof
CN114038610A (en) * 2022-01-10 2022-02-11 南通俊丰新材料科技有限公司 Organic carrier for battery silicon wafer metallization process and preparation method thereof
CN114334217A (en) * 2022-03-17 2022-04-12 西安宏星电子浆料科技股份有限公司 Fine line printing type conductor paste
CN115985553A (en) * 2023-01-13 2023-04-18 上海怡上电子科技有限公司 Halogen-free silver paste with high bending resistance and preparation method thereof

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