CN116013577A - Preparation method of high-temperature sintering conductive paste - Google Patents

Preparation method of high-temperature sintering conductive paste Download PDF

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CN116013577A
CN116013577A CN202310143736.3A CN202310143736A CN116013577A CN 116013577 A CN116013577 A CN 116013577A CN 202310143736 A CN202310143736 A CN 202310143736A CN 116013577 A CN116013577 A CN 116013577A
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conductive paste
glycol monophenyl
mass
monophenyl ether
preparing
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CN116013577B (en
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高健宝
李雪嵩
尹超
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Changchun Gold Research Institute
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Abstract

The invention provides a preparation method of high-temperature sintering conductive paste, which belongs to the technical field of electronic functional materials, and comprises the steps of preparing an organic solvent by using flexible long-chain substances and corresponding substances with benzene rings in molecular structures as raw materials, further preparing an organic carrier by using the organic solvent together with ethylcellulose, hydrogenated rosin pentaerythritol ester and polyamide modified hydrogenated castor oil derivatives with different molecular weights, and preparing the conductive paste by using the organic carrier together with silver powder and glass powder; through the mode, the thixotropic property of the paste can be effectively improved, the dosage of the thixotropic agent is reduced, and the stability of the conductive paste is ensured by utilizing the synergistic effect of the ethyl cellulose with different molecular weights in the organic carrier and the organic solvent.

Description

Preparation method of high-temperature sintering conductive paste
Technical Field
The invention relates to the technical field of electronic functional materials, in particular to a preparation method of high-temperature sintering conductive slurry.
Background
Printing is one of the most important parts in the solar cell production process as a necessary process from the paste to the grid lines. At present, a screen printing process is commonly used in the printing process of the solar cell, and whether the sizing agent has good printing performance is a key of the overall performance of the sizing agent. In the printing process, the viscosity of the sizing agent is rapidly reduced in the shearing motion, so that stable screen passing and leveling performance is realized; the viscosity increases dramatically after transfer to the substrate, where the paste viscoelasticity is dominated by elasticity, keeping the line edges smooth and less spread, thus requiring good thixotropic properties of the paste.
In the prior art, the viscosity of an organic carrier is regulated and controlled by a mixture of ethyl cellulose with different molecular weights in a patent application with publication number of CN106084304A and publication date of 2016, 11 and 9 and named as formula of organic carrier in silver paste, so that inconsistency of different batches of products caused by the carrier is reduced. The above-mentioned mode of introducing ethyl cellulose with different molecular weights to regulate and control the viscosity of the organic carrier of silver paste only applies the basic characteristics that the higher the molecular weight of ethyl cellulose is, the larger the viscosity is, and the thixotropic property of silver paste is regulated by regulating and controlling the difference of molecular weights, and the main means for regulating the thixotropic property in the technical scheme is still to regulate the dosage of thixotropic agent, namely hydrogenated castor oil. Because the thixotropic agent and the solvent cannot be completely solvated, the use of the thixotropic agent with high content leads to easy phase separation of the thixotropic agent and the solvent in the process of storage and transportation of the slurry, and the technical scheme of the patent still cannot avoid the problem that the thixotropic agent and the solvent are easy to phase separation in the process of storage and transportation of the slurry.
In view of the foregoing, there is a need for an improved method for preparing high temperature sintered conductive paste to solve the above problems.
Disclosure of Invention
The invention aims to provide a preparation method of high-temperature sintering conductive paste.
In order to achieve the above object, the present invention provides a method for preparing a high-temperature sintered conductive paste, wherein the conductive paste comprises silver powder, an organic carrier and glass powder, and the specific preparation method comprises the following steps:
s1, preparing an organic solvent by taking at least one of fatty acid ester containing a phenyl ether structure, butyl carbitol acetate, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate or 2, 4-trimethyl-1, 3-pentanediol diisobutyrate, dimethyl adipate, gamma-methacryloxypropyl trimethoxysilane and silicone oil as raw materials according to the following steps: mixing phenyl ether structure-containing alcohol with a molar ratio of 1:1.1-1.5, fatty acid anhydride or succinic anhydride, 10-20% of toluene and a proper amount of sulfonic acid group molecular sieve, heating in an oil bath under the magnetic stirring condition until the toluene flows back, keeping the toluene stably flowing back for 2-8 hours, and performing reduced pressure distillation to obtain the organic solvent;
s2, weighing ethyl cellulose N200 and ethyl cellulose N50 with preset mass, mixing the ethyl cellulose N50 with hydrogenated rosin pentaerythritol ester, polyamide modified hydrogenated castor oil derivative and the organic solvent prepared in the step S1, and stirring the mixture under the water bath condition for 6h to obtain an organic carrier;
and S3, weighing 89g of silver powder, 9g of organic carrier and 2g of glass powder, fully mixing in a homogenizer, grinding for 1h by a three-roller machine, and adjusting the roller spacing of the three-roller machine to ensure that the fineness of the slurry is below 10um, thus obtaining the solar cell front surface high-temperature sintering conductive slurry.
Preferably, in step S2, the mass of the ethylcellulose N200 is 0.2-0.25g, and the mass of the ethylcellulose N50 is 0.25-0.3g.
Preferably, in step S2, the mass of the hydrogenated rosin pentaerythritol ester is 0.45 to 0.5g, the mass of the polyamide-modified hydrogenated castor oil derivative is 0.1 to 0.2g, and the mass of the organic solvent is 8 to 9.8g.
Preferably, in step S2, the temperature of the water bath is 60 ℃.
Preferably, in the step S1, the mass percentage of the fatty acid ester containing the phenyl ether structure is 10-60%; the mass percentage of the butyl carbitol acetate is 10-60%; the mass percentage of the 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate or the 2, 4-trimethyl-1, 3-pentanediol diisobutyrate is 0.1-10%; the mass percentage of the dimethyl adipate is 10-30%; the mass percentage of the gamma-methacryloxypropyl trimethoxy silane is 0.1-0.5%; the mass percentage of the silicone oil is 0.5-1.5%.
Preferably, in the step S1, the alcohol containing a phenyl ether structure is one or more of ethylene glycol monophenyl ether, propylene glycol monophenyl ether, butanediol monophenyl ether, diethylene glycol monophenyl ether or triethylene glycol monophenyl ether.
Preferably, in step S1, the fatty acid anhydride is acetic anhydride, propionic anhydride or butyric anhydride.
Preferably, in step S1, the succinic anhydride is one or more of dodecenyl succinic anhydride, tetradecenyl succinic anhydride, hexadecenyl succinic anhydride and octadecyl succinic anhydride.
Preferably, in the step S1, the fatty acid ester containing a phenyl ether structure is one or more of ethylene glycol monophenyl ether acetate, ethylene glycol monophenyl ether butyrate, diethylene glycol monophenyl ether acetate, diethylene glycol monophenyl ether butyrate, ethylene glycol mono-p-toluene ether acetate, diethylene glycol mono-p-toluene ether butyrate, propylene glycol monophenyl ether acetate, propylene glycol monophenyl ether butyrate, dipropylene glycol monophenyl ether acetate or dipropylene glycol monophenyl ether butyrate.
The beneficial effects of the invention are as follows:
1. the invention provides a preparation method of high-temperature sintering conductive paste, which comprises the steps of preparing an organic solvent by using flexible long-chain substances and corresponding substances with benzene rings in molecular structures as raw materials, preparing an organic carrier by the organic solvent and ethyl cellulose, hydrogenated rosin pentaerythritol ester and polyamide modified hydrogenated castor oil derivatives with different molecular weights, and preparing the conductive paste by the organic carrier, silver powder and glass powder; through the mode, the thixotropic property of the paste can be effectively improved, the dosage of the thixotropic agent is reduced, and the stability of the conductive paste is ensured by utilizing the synergistic effect of the ethyl cellulose with different molecular weights in the organic carrier and the organic solvent.
2. According to the preparation method of the high-temperature sintering conductive paste, the flexible long-chain substance containing benzene rings in the molecular structure is used as the raw material of the organic solvent, so that the acting force between the solvent and the organic resin is effectively enhanced, the volatilization of the solvent in the printing process can be slowed down, and the problem that the solvent is easy to separate out in the paste storage process can be further improved; meanwhile, the high-molecular-weight ethyl cellulose is used for providing viscosity for the organic carrier, the low-molecular-weight ethyl cellulose is used for providing plasticity for the organic carrier, and the interaction between the high-molecular-weight ethyl cellulose and the organic solvent is used for improving the problem that the solvent is easy to separate out in the storage process of the conductive paste on the premise that the thixotropic property of the conductive paste is ensured to meet the requirement.
Drawings
FIG. 1 is a rheological profile of the slurries prepared in examples 1 to 2 and comparative examples 1 to 2;
FIG. 2 is a confocal microscope photograph of the slurry prepared in example 1;
FIG. 3 is a confocal microscope photograph of the slurry prepared in example 2;
FIG. 4 is a confocal microscope scan of the slurry prepared in comparative example 1;
FIG. 5 is a confocal microscope photograph of the slurry prepared in comparative example 2.
Description of the embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
It should be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and/or processing steps closely related to aspects of the present invention are shown in the drawings, and other details not greatly related to the present invention are omitted.
In addition, it should be further noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1, the invention provides a method for preparing high-temperature sintered conductive paste, wherein the conductive paste comprises silver powder, an organic carrier and glass powder, and the specific preparation method comprises the following steps:
s1, preparing an organic solvent: preparing an organic solvent by using 10-60% by mass of fatty acid ester containing a phenyl ether structure, 10-60% by mass of butyl carbitol acetate, 0.1-10% by mass of at least one of 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate or 2, 4-trimethyl-1, 3-pentanediol diisobutyrate, 10-30% by mass of dimethyl adipate, 0.1-0.5% by mass of gamma-methacryloxypropyl trimethoxysilane and 0.5-1.5% by mass of silicone oil as raw materials;
s2, preparing an organic carrier: weighing ethyl cellulose N200 and ethyl cellulose N50 with preset mass and different molecular weights, mixing 0.45-0.5g of hydrogenated rosin pentaerythritol ester, 0.1-0.2g of polyamide modified hydrogenated castor oil derivative with 8-9.8g of organic solvent, and stirring for 6h under the water bath condition to obtain an organic carrier;
s3, preparing slurry: 89g of silver powder, 9g of the organic carrier prepared in the step S2 and 2g of glass powder are weighed, fully mixed in a homogenizer, ground by a three-roller machine, and the distance between rollers is adjusted to ensure that the fineness of the slurry is below 10um, thus obtaining the high-temperature sintering conductive slurry for the front surface of the solar cell.
Preferably, in step S1, the specific preparation process of the organic solvent is as follows: the molar ratio of the alcohol containing the phenyl ether structure to the fatty acid anhydride or the succinic acid anhydride is 1:1.1-1.5, the mass percentage of toluene is 10-20%, and the molecular sieve is a proper amount of sulfonic acid group; a water separator and a spherical condenser are added on a round bottom flask, and the oil bath is heated to reflux the toluene under the condition of magnetic stirring, so that the toluene is kept to stably reflux for 2-8h; taking down the water separator and adding a dryer; and (3) after the mixed solution is cooled to room temperature, carrying out reduced pressure distillation on the mixed solution, and collecting a main fraction.
Preferably, the alcohol containing the phenyl ether structure is one or more of ethylene glycol monophenyl ether, ethylene glycol mono-p-methyl phenyl ether, propylene glycol monophenyl ether, butanediol monophenyl ether, diethylene glycol monophenyl ether or triethylene glycol monophenyl ether.
Preferably, the fatty anhydride is acetic anhydride, propionic anhydride or butyric anhydride.
Preferably, the succinic anhydride is one or more of dodecenyl succinic anhydride, tetradecenyl succinic anhydride, hexadecenyl succinic anhydride or octadecyl succinic anhydride.
Preferably, the fatty acid ester containing a phenyl ether structure is one or more of ethylene glycol monophenyl ether acetate, ethylene glycol monophenyl ether butyrate, diethylene glycol monophenyl ether acetate, diethylene glycol monophenyl ether butyrate, ethylene glycol mono-p-toluene ether acetate, ethylene glycol mono-p-toluene ether butyrate, diethylene glycol mono-p-toluene ether acetate, diethylene glycol mono-p-toluene ether butyrate, propylene glycol monophenyl ether acetate, propylene glycol monophenyl ether butyrate, dipropylene glycol monophenyl ether acetate or dipropylene glycol monophenyl ether butyrate.
Preferably, in step S2, the mass of ethylcellulose N200 is 0.2-0.25g, and the mass of ethylcellulose N50 is 0.25-0.3g.
Preferably, in step S2, the temperature of the water bath is 60 ℃.
Preferably, in step S3, the grinding time is 1h.
The following describes the preparation method of the high-temperature sintering conductive paste according to the present invention with reference to specific examples:
example 1
The embodiment prepares the high-temperature sintering conductive paste, and the specific preparation method comprises the following steps:
s1, preparing an organic solvent: preparing an organic solvent by using 60% by mass of fatty acid ester containing a phenyl ether structure, 10% by mass of butyl carbitol acetate, 5.4% by mass of at least one of 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate or 2, 4-trimethyl-1, 3-pentanediol diisobutyrate, 24% by mass of dimethyl adipate, 0.1% by mass of gamma-methacryloxypropyl trimethoxysilane and 0.5% by mass of silicone oil as raw materials;
the specific preparation process of the organic solvent is as follows: the mol ratio of the ethylene glycol monophenyl ether to the acetic anhydride is 1:1.5, the mass fraction of toluene is 20 percent, and a proper amount of sulfonic acid molecular sieve is adopted; a water separator and a spherical condenser are added on a round bottom flask, and the oil bath is heated to reflux the toluene under the magnetic stirring condition, so that the toluene is kept to stably reflux for 8 hours; taking down the water separator and adding a dryer; cooling the mixed solution to room temperature, performing reduced pressure distillation, and collecting main fraction;
s2, preparing an organic carrier: weighing 0.22g of ethyl cellulose N200, 0.3g of ethyl cellulose N50, 0.45g of hydrogenated rosin pentaerythritol ester, 0.1g of polyamide modified hydrogenated castor oil derivative and 9g of organic solvent, mixing, and stirring for 1h under the water bath condition at 60 ℃ to obtain an organic carrier;
s3, preparing slurry: 89g of silver powder, 9g of organic carrier and 2g of glass powder are weighed, fully mixed in a homogenizer, ground for 1h by a three-roller machine, and the distance between rollers is adjusted to ensure that the fineness of the slurry is below 10um, so that the conductive slurry for sintering the front surface of the solar cell at high temperature is prepared. The viscosity of the slurry was measured by a viscometer (DV 2TH13, spindle No. 14, 50 rpm) and found to be 96Pa.s. A confocal scanning photograph of the paste prepared in example 1 is shown in fig. 2, wherein a in fig. 2 is an optical photograph of a gate line obtained by printing the paste prepared in example 1 by a printer, B in fig. 2 is a 3d simulated photograph of a gate line obtained by printing the paste prepared in example 1 by a printer, and C in fig. 2 is a cross-sectional scanning photograph of a gate line obtained by printing the paste prepared in example 1 by a printer; note that A, B, C in fig. 3 to 5 are an optical photograph, a 3d simulated photograph, and a cross-sectional scan photograph of the gate line obtained by printing the pastes prepared in example 2 and comparative examples 1 to 2, respectively, by a printer.
Example 2
Example 2 differs from example 1 in that: in step S2, the amount of ethylcellulose N200 added when preparing the organic vehicle was 0.25g, and the amount of ethylcellulose N50 added was 0.25g, and the other steps were substantially the same as in example 1, and will not be described here. The slurry prepared in example 2 had a viscosity of 98pa.s, and the confocal scanning photograph of the slurry is shown in fig. 3, and it can be seen from comparing fig. 2 and 3 that the slurries prepared in example 1 and example 2 have similar viscosities under high shear conditions, and the slurry prepared in example 1 has higher viscosities under low shear conditions, i.e., the slurry prepared in example 1 has better thixotropic properties. This is macroscopically apparent by the fact that the paste produced in example 1 gives a more three-dimensional and plump grid. Experiments prove that the thixotropic property of the slurry can be effectively improved by increasing the dosage ratio of the low-molecular-weight ethyl cellulose within a certain range under the condition of keeping the viscosity of the slurry consistent.
Comparative example 1
Comparative example 1 differs from example 1 in that: in step S2, only ethylcellulose N50 was added during the preparation of the organic vehicle, ethylcellulose N200 was not added, the amount of ethylcellulose N50 added was 0.55g, and other steps were substantially the same as in example 1, and no detailed description thereof will be given. The viscosity of the slurry prepared in comparative example 1 is 95pa.s, the confocal scanning photograph of the slurry is shown in fig. 3, the rheological curves of the slurries prepared in comparative example 1, example 2 and comparative example 1 in comparative example 1 can be found, the thixotropy of the slurries prepared in comparative example 1 is not as good as that of the slurries prepared in example 1 and example 2, and the result further shows that the invention provides a synergistic effect between the organic solvent and the ethylcellulose N200 and ethylcellulose N50 in the preparation method of the slurry, so that the dosage of the thixotropic agent can be reduced on the premise of ensuring the thixotropy of the slurry, and the problem that the solvent is easy to separate out in the storage process is solved.
Comparative example 2
Comparative example 2 differs from example 1 in that: in step S1, 70% by mass of butyl carbitol acetate, 5.4% by mass of at least one of 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate and 2, 4-trimethyl-1, 3-pentanediol diisobutyrate, 24% by mass of dimethyl adipate, 0.1% by mass of gamma-methacryloxypropyl trimethoxysilane and 0.5% by mass of silicone oil are used as raw materials in the preparation of the organic solvent, and other steps are substantially the same as those of example 1, and are not repeated herein. The viscosity of the slurry prepared in comparative example 2 is 96Pa.s, confocal scanning photographs of the slurries are shown in fig. 4, rheological curves of the slurries prepared in examples 1 to 2 and comparative examples 1 to 2 are shown in fig. 1, and as can be seen from fig. 1, under the condition that other conditions are the same, the thixotropic property of the slurry can be effectively improved and a better printing effect can be obtained by adopting the formula system which is provided by the invention and takes the flexible long-chain substance containing benzene rings in molecular structures as a solvent; meanwhile, the flexible long-chain substance containing benzene ring introduced in the organic solvent can obviously increase acting force between the solvent and the organic resin, so that not only is volatilization of the solvent slowed down in the printing process, but also the problem that the solvent is easy to separate out in the storage process is further improved.
In summary, the preparation method of the high-temperature sintering conductive paste provided by the invention comprises the steps of preparing an organic solvent by using flexible long-chain substances and corresponding substances with benzene rings in molecular structures as raw materials, further preparing an organic carrier by using the organic solvent, ethyl cellulose, hydrogenated rosin pentaerythritol ester and polyamide modified hydrogenated castor oil derivatives with different molecular weights, and preparing the conductive paste by using the organic carrier, silver powder and glass powder. Through the mode, the thixotropy of the paste can be effectively improved, the dosage of the thixotropic agent is reduced, and the stability of the conductive paste is ensured by utilizing the synergistic effect of the ethyl cellulose with different molecular weights in the organic carrier and the organic solvent; secondly, the introduction of the ethyl cellulose with different molecular weights can utilize the interaction of the ethyl cellulose with the organic solvent to solve the problem that the solvent is easy to separate out in the storage process of the conductive paste on the premise of ensuring that the thixotropic property of the conductive paste meets the requirement.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention.

Claims (9)

1. The preparation method of the high-temperature sintered conductive paste is characterized by comprising silver powder, an organic carrier and glass powder, and comprises the following steps:
s1, preparing an organic solvent by taking at least one of fatty acid ester containing a phenyl ether structure, butyl carbitol acetate, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate or 2, 4-trimethyl-1, 3-pentanediol diisobutyrate, dimethyl adipate, gamma-methacryloxypropyl trimethoxysilane and silicone oil as raw materials according to the following steps: mixing 1.1-1.5 molar ratio of alcohol containing a phenyl ether structure with fatty acid anhydride or succinic anhydride, 10-20 mass percent of toluene and a proper amount of sulfonic acid group molecular sieve, heating the mixture in an oil bath under the magnetic stirring condition until the toluene flows back, keeping the toluene stably flowing back for 2-8 hours, and performing reduced pressure distillation to obtain the organic solvent;
s2, weighing ethyl cellulose N200 and ethyl cellulose N50 with preset mass, mixing the ethyl cellulose N50 with hydrogenated rosin pentaerythritol ester, polyamide modified hydrogenated castor oil derivative and the organic solvent prepared in the step S1, and stirring for 6 hours under the water bath condition to obtain an organic carrier;
and S3, weighing 89g of silver powder, 9g of organic carrier and 2g of glass powder, fully mixing in a homogenizer, grinding for 1h by a three-roller machine, and adjusting the roller spacing of the three-roller machine to ensure that the fineness of the slurry is below 10um, thus obtaining the solar cell front surface high-temperature sintering conductive slurry.
2. The method for preparing a high-temperature sintered conductive paste according to claim 1, wherein in step S2, the mass of the ethylcellulose N200 is 0.2-0.25g, and the mass of the ethylcellulose N50 is 0.25-0.3g.
3. The method of producing a high temperature sintered conductive paste according to claim 1, wherein in step S2, the mass of the hydrogenated rosin pentaerythritol ester is 0.45 to 0.5g, the mass of the polyamide-modified hydrogenated castor oil derivative is 0.1 to 0.2g, and the mass of the organic solvent is 8 to 9.8g.
4. The method of preparing a high temperature sintered conductive paste according to claim 1, wherein in step S2, the temperature of the water bath is 60 ℃.
5. The method for preparing a high-temperature sintered conductive paste according to claim 1, wherein in step S1, the mass percentage of the fatty acid ester containing a phenyl ether structure is 10 to 60%; the mass percentage of the butyl carbitol acetate is 10-60%; the mass percentage of the 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate or the 2, 4-trimethyl-1, 3-pentanediol diisobutyrate is 0.1-10%; the mass percentage of the dimethyl adipate is 10-30%; the mass percentage of the gamma-methacryloxypropyl trimethoxy silane is 0.1-0.5%; the mass percentage of the silicone oil is 0.5-1.5%.
6. The method for preparing high-temperature sintered conductive paste according to claim 1, wherein in the step S1, the alcohol containing a phenyl ether structure is one or more of ethylene glycol monophenyl ether, propylene glycol monophenyl ether, butylene glycol monophenyl ether, diethylene glycol monophenyl ether or triethylene glycol monophenyl ether.
7. The method of preparing a high temperature sintered conductive paste according to claim 1, wherein in step S1, the fatty acid anhydride is acetic anhydride, propionic anhydride or butyric anhydride.
8. The method of producing a high-temperature sintered conductive paste according to claim 1, wherein in step S1, the succinic anhydride is one or more of dodecenyl succinic anhydride, tetradecenyl succinic anhydride, hexadecenyl succinic anhydride, or octadecenyl succinic anhydride.
9. The method for preparing the high-temperature sintered conductive paste according to claim 1, wherein in the step S1, the fatty acid ester containing a phenyl ether structure is one or more of ethylene glycol monophenyl ether acetate, ethylene glycol monophenyl ether butyrate, diethylene glycol monophenyl ether acetate, diethylene glycol monophenyl ether butyrate, ethylene glycol mono-p-toluene ether acetate, ethylene glycol mono-p-toluene ether butyrate, diethylene glycol mono-p-toluene ether acetate, diethylene glycol mono-p-toluene ether butyrate, propylene glycol monophenyl ether acetate, propylene glycol monophenyl ether butyrate, dipropylene glycol monophenyl ether acetate, and dipropylene glycol monophenyl ether butyrate.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116959779A (en) * 2023-09-15 2023-10-27 南通艾盛新能源科技有限公司 Polymer dispersant, organic carrier and metal conductive paste

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Publication number Priority date Publication date Assignee Title
CN107331435A (en) * 2017-06-30 2017-11-07 北京市合众创能光电技术有限公司 Crystal silicon solar energy battery is without main grid silver paste and preparation method thereof
CN112133469A (en) * 2020-09-28 2020-12-25 长春黄金研究院有限公司 Mixed organic solvent for preparing high-temperature sintering conductive slurry
CN114582544A (en) * 2022-02-18 2022-06-03 南通俊丰新材料科技有限公司 Conductive paste, preparation method and application thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107331435A (en) * 2017-06-30 2017-11-07 北京市合众创能光电技术有限公司 Crystal silicon solar energy battery is without main grid silver paste and preparation method thereof
CN112133469A (en) * 2020-09-28 2020-12-25 长春黄金研究院有限公司 Mixed organic solvent for preparing high-temperature sintering conductive slurry
CN114582544A (en) * 2022-02-18 2022-06-03 南通俊丰新材料科技有限公司 Conductive paste, preparation method and application thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116959779A (en) * 2023-09-15 2023-10-27 南通艾盛新能源科技有限公司 Polymer dispersant, organic carrier and metal conductive paste
CN116959779B (en) * 2023-09-15 2023-12-08 南通艾盛新能源科技有限公司 Polymer dispersant, organic carrier and metal conductive paste

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