Preparation method of photocuring formed tubular SOFC (Solid Oxide Fuel Cell) anode support body

Abstract

The invention is suitable for the field of photocuring additive manufacturing, and provides a preparation method of a photocuring molded SOFC anode support body, and the system comprises 2-10 parts of a prepolymer, 1-15 parts of a diluent, 1-3 parts of a surface modifier, 1-5 parts of a dispersant, 0.1-1 part of an antifoaming agent, 0.1-2 parts of an initiator, and 2-100 parts of zirconia powder. According to the preparation method of the photocuring formed SOFC anode support body through the photocuring technology, the photocuring formed SOFC anode support body is widely applied to the fields of forming high-precision solid oxide fuel cells and the like.

Description

Technical Field

[0001] The invention belongs to the field of material science and engineering-polymer, and in particular relates to a method for preparing a photocuring-molded SOFC anode support. Background Art

[0002] Solid oxide fuel cell (SOFC) is a new type of power generation device with the advantages of high energy conversion efficiency, low environmental pollution, and strong fuel adaptability. It is highly anticipated in the current situation of global energy shortage, relatively single energy supply form, and increasingly serious environmental pollution. With the continuous development and improvement of SOFC technology, its commercialization process continues to advance. Faced with the material technology and cost issues brought about by the operation of traditional SOFC at high temperature (about 1000℃), as well as the limitations of hydrogen as SOFC fuel, researchers have deeply realized that reducing the cost of batteries and using hydrocarbons as fuel are of great significance for the commercialization of solid oxide fuel cells. For solid oxide fuel cells, exploring the low-cost preparation technology of SOFC and preparing single cells for its microstructure, output performance and long-term stability are urgent problems to be solved in the field of solid oxide fuel cells.

[0003] As an emerging battery preparation method, photocuring technology shows a good development prospect in the formation of solid oxide fuel cell supports. The present invention forms a tubular SOFC battery anode support through photocuring technology, so that it can meet the application of solid oxide fuel cells and other fields. Summary of the invention

[0004] The embodiments of the present application provide a photocuring technology for forming a solid oxide fuel cell support body to construct a photocuring formed solid oxide fuel cell.

[0005] The embodiment of the present application is to realize the photocuring technology to form a tubular SOFC battery anode support body including the following raw materials in parts by weight:

[0006] 2-10 parts of prepolymer, 1-15 parts of diluent, 1-3 parts of surface modifier, 1-5 parts of dispersant, 0.1-1 parts of defoamer, 0.1-2 parts of initiator, 2-100 parts of zirconium oxide powder.

[0007] The present application also provides a method for preparing a tubular SOFC battery anode support formed by a photocuring technology, comprising:

[0008] Put 50 parts of zirconium oxide powder and dispersant into a ball mill, use anhydrous ethanol as a medium for ball milling, take out and dry in an oven, grind and sieve to obtain modified zirconium oxide powder for use;

[0009] Mix 1-12 parts of argon, 1-10 parts of diluent, 1-12 parts of surface modifier, 1-8 parts of dispersant, 0.1-1 parts of defoamer and 0.1-1 parts of initiator, and stir evenly to obtain a photosensitive resin;

[0010] The modified zirconium oxide powder and the photosensitive resin are mixed, and then 0.2 to 0.5 parts of a defoaming agent are added to carry out ball milling treatment. After taking out, vacuum stirring is used to remove bubbles to obtain the product.

[0011] The zirconium oxide photocurable slurry is printed using a DLP printer to obtain a part blank, the printed part blank is cleaned by ultrasonic wave using distilled water as a medium, the attached slurry and water are washed away by air flow, and then dried;

[0012] The dried parts are subjected to thermal degreasing treatment, with a heating rate of 0.1-0.5°C / min at 100-500°C, and the temperature is raised to 1000°C and kept after degreasing;

[0013] After degreasing, the anode support of the tubular SOFC battery is obtained by sintering at 1450-1500°C for 2-4 hours.

[0014] In order to make the purpose, technical solution and advantages of the present application more clear, the present application is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0015] The present application provides a solid oxide fuel cell support body formed by photocuring technology, comprising the following raw materials in parts by weight:

[0016] 2-10 parts of prepolymer, 1-15 parts of diluent, 1-3 parts of surface modifier, 1-5 parts of dispersant, 0.1-1 parts of defoamer, 0.1-2 parts of initiator, 2-100 parts of zirconium oxide powder.

[0017] Wherein, the oligomer is one or more of bisphenol A epoxy acrylate, polyurethane acrylate, and epoxidized oil acrylate.

[0018] Wherein, the diluent is one or more of 1,6-hexanediol diacrylate, 1,4-butanediol diacrylate, and propylene glycol diacrylate.

[0019] Wherein, the photoinitiator is one or more of benzoin and its derivatives, dialkoxyacetophenone, α-hydroxyalkyl phenone, and acylphosphine oxide.

[0020] Wherein, the dispersant is a polymer super dispersant, preferably one or more of DH-5038, DH-6000, and DH-5350.

[0021] Wherein, the surface modifier is a silane coupling agent, and the dispersant is a polymer super dispersant, preferably one or more of KH550, KH560, and KH570.

[0022] Wherein, the defoaming agent is one of B-0846, B-0847, B-0848 or several of them in any proportion, provided by Nanjing Jiazhong Chemical Technology Co., Ltd.

[0023] Wherein, the zirconium oxide is provided by Sinopharm Chemical Reagent Co., Ltd.

[0024] Implementation Case 1

[0025] The present application also provides a method for preparing a photocurable SOFC anode support, comprising:

[0026] Take 6 parts of bisphenol A epoxy acrylate, 5 parts of 1,6-hexanediol diacrylate, 2 parts of KH560, 0.1 parts of dialkoxyacetophenone, and 1 part of defoaming B-0846

[0027] , and the photosensitive resin was obtained after magnetic stirring for 24 hours.

[0028] Take 50 parts of zirconium oxide powder, dry it, sieve it, and put it into a ball mill. Use anhydrous ethanol as a medium for ball milling. After drying, grinding and sieving, zirconium oxide powder is obtained for use. The ball milling beads are all zirconium oxide. Use a planetary ball mill at 400 rpm for 24 hours, take out the suspension, filter it, dry it, grind it, and sieve it to obtain modified zirconium oxide powder.

[0029] Mix 50 parts of modified zirconia powder, 10 parts of photosensitive resin and 0.5 parts of defoaming agent B-0847, put them into a ball mill, add 50 parts of 10mm ball milling beads and 100 parts of 5mm ball milling beads, and after ball milling for 24 hours, take out and put them into a vacuum stirring tank. After vacuum stirring and defoaming, zirconium oxide photocuring slurry is obtained.

[0030] The part blank was printed with zirconium oxide photocuring slurry using a DLP printer. The blank was cleaned with ultrasonic waves using distilled water as the medium, and the attached slurry and water were washed off with air flow before drying. The dried blank was thermally degreased in a degreasing furnace, with a heating rate of 0.1 / min at 100-500°C; after degreasing, the temperature was raised to 1000°C and kept for 2 hours. After degreasing, the tubular SOFC battery anode support was sintered in a muffle furnace at 1520°C for 2 hours.

Claims

1. A tubular SOFC battery anode support formed by light curing technology, characterized in that: 2-10 parts of prepolymer, 1-15 parts of diluent, 1-3 parts of surface modifier, 1-5 parts of dispersant, 0.1-1 parts of defoamer, 0.1-2 parts of initiator, 2-100 parts of zirconium oxide powder.

2. The oligomer as claimed in claim 1 is one or more of bisphenol A epoxy acrylate, polyurethane acrylate, and epoxidized oil acrylate.

3. The diluent as claimed in claim 1 is one or more of 1,6-hexanediol diacrylate, 1,4-butanediol diacrylate and glycerol diacrylate.

4. The photoinitiator as claimed in claim 1 is one or more of benzoin and its derivatives, dialkoxyacetophenone, α-hydroxyalkyl phenone, and acylphosphine oxide.

5. The surface modifier as claimed in claim 1 is a silane coupling agent and the dispersant is a polymer super dispersant, preferably one or more of KH550, KH560, and KH570.

6. The dispersant as claimed in claim 1 is a polymer super dispersant, preferably one or more of DH-5038, DH-6000, and DH-5350.

7. The defoaming agent as claimed in claim 1 is one of B-0846, B-0847, B-0848 or several of them in any proportion, provided by Nanjing Jiazhong Chemical Technology Co., Ltd. Take 6 parts of bisphenol A epoxy acrylate, 5 parts of 1,6-hexanediol diacrylate, 2 parts of KH560, 0.1 parts of dialkoxyacetophenone, and 1 part of defoaming agent B-0846, and stir them magnetically for 24 hours to obtain a photosensitive resin. Mix 50 parts of modified zirconia powder, 10 parts of photosensitive resin and 0.5 parts of defoaming agent B-0847, put them into a ball mill, add 50 parts of 10mm ball milling beads and 100 parts of 5mm ball milling beads, and after ball milling for 24 hours, take out and put them into a vacuum stirring tank. After vacuum stirring and defoaming, zirconium oxide photocuring slurry is obtained. The part blank was printed with zirconium oxide photocuring slurry using a DLP printer. The blank was cleaned with ultrasonic waves using distilled water as the medium, and the attached slurry and water were washed off with air flow before drying. The dried blank was thermally degreased in a degreasing furnace, with a heating rate of 0.1 / min at 100-500°C; after degreasing, the temperature was raised to 1000°C and kept for 2 hours. After degreasing, the tubular SOFC battery anode support was sintered in a muffle furnace at 1520°C for 2 hours.