RU2001128217A - High conductivity moldable compounds and bipolar plates for fuel cells containing these compounds - Google Patents

High conductivity moldable compounds and bipolar plates for fuel cells containing these compounds

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Publication number
RU2001128217A
RU2001128217A RU2001128217/09A RU2001128217A RU2001128217A RU 2001128217 A RU2001128217 A RU 2001128217A RU 2001128217/09 A RU2001128217/09 A RU 2001128217/09A RU 2001128217 A RU2001128217 A RU 2001128217A RU 2001128217 A RU2001128217 A RU 2001128217A
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RU
Russia
Prior art keywords
resin
group
conductive
unsaturated
vinyl ester
Prior art date
Application number
RU2001128217/09A
Other languages
Russian (ru)
Other versions
RU2248072C2 (en
Inventor
Керт И. БАТЛЕР
Original Assignee
Квантум Композитс, Инк.
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Priority claimed from US09/526,641 external-priority patent/US6251308B1/en
Application filed by Квантум Композитс, Инк. filed Critical Квантум Композитс, Инк.
Publication of RU2001128217A publication Critical patent/RU2001128217A/en
Application granted granted Critical
Publication of RU2248072C2 publication Critical patent/RU2248072C2/en

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Claims (10)

1. Пластина электрохимического элемента с полем течения, содержащая формованную композицию на основе термореактивной смолы и имеющая толщину от около 0,050 до около 0,200 дюйма (0,13-0,51 см) и объемную проводимость, по меньшей мере, 55 См/см, причем указанная формованная композиция на основе смолы является продуктом взаимодействия, по меньшей мере: a) смолы на основе ненасыщенного форполимера, которая включает одну или несколько смол на основе ненасыщенного сложного полиэфира и сложного винилового эфира; b) ненасыщенного материала, сополимеризуемого с указанной смолой и содержащего концевую этиленовую группу; c) проводящего наполнителя, составляющего, по меньшей мере, 50% от общей массы композиции; d) инициатора для инициации указанной сополимеризации; и е) количества модификатора реологии, эффективного для предотвращения фазового разделения между указанной смолой и указанным проводящим наполнителем во время формования, причем указанный модификатор реологии представляет собой одну или несколько композиций, выбранных из группы, состоящей из оксидов и гидроксидов элементов Группы II, карбодиамидов, азиридинов, полиизоцианатов, политетрафторэтилена, перфторполиэфира, полиэтилена и коллоидальной двуокиси кремния, и глин.1. Plate electrochemical cell with a flow field containing a molded composition based on a thermosetting resin and having a thickness of from about 0.050 to about 0.200 inches (0.13-0.51 cm) and bulk conductivity of at least 55 S / cm, and said molded resin composition is a reaction product of at least: a) an unsaturated prepolymer resin that includes one or more unsaturated polyester and vinyl ester resins; b) an unsaturated material copolymerizable with said resin and containing a terminal ethylene group; c) a conductive filler comprising at least 50% of the total weight of the composition; d) an initiator for initiating said copolymerization; and e) an amount of a rheology modifier effective to prevent phase separation between said resin and said conductive filler during molding, said rheology modifier being one or more compositions selected from the group consisting of oxides and hydroxides of Group II elements, carbodiamides, aziridines , polyisocyanates, polytetrafluoroethylene, perfluoropolyether, polyethylene and colloidal silicon dioxide, and clays. 2. Пластина электрохимического элемента с полем течения по п.1, где наполнитель представляет собой наполнитель на основе графита, и количество указанного проводящего наполнителя составляет, по меньшей мере, 65 мас.%.2. The plate of the electrochemical cell with a flow field according to claim 1, where the filler is a filler based on graphite, and the amount of said conductive filler is at least 65 wt.%. 3. Пластина электрохимического элемента с полем течения по п.1, где указанный сополимеризуемый материал представляет собой один или несколько мономеров, выбранных из группы, состоящей из стирола, альфа-метилстирола, хлорстирола, винилтолуола, дивинилбензола, диаллилфталата, и метилметакрилата, и их смеси.3. The plate of the electrochemical cell with a flow field according to claim 1, wherein said copolymerizable material is one or more monomers selected from the group consisting of styrene, alpha-methylstyrene, chlorostyrene, vinyltoluene, divinylbenzene, diallylphthalate, and methyl methacrylate, and mixtures thereof . 4. Проводящая формуемая композиция, содержащая: a) 100 ч. смолы на основе ненасыщенного форполимера, которая включает одну или несколько смол на основе ненасыщенного сложного полиэфира и сложного винилового эфира; b) ненасыщенный мономер, выбранный из группы, состоящей из стирола, альфа-метил стирола, хлорстирола, винилтолуола, дивинилбензола, диаллилфталата, и метилметакрилата и их смеси, где отношение мономеров к смоле на основе ненасыщенного форполимера составляет от около 40:60 до около 72:25 по отношению к массе а и b, c) по меньшей мере, около 225 ч. на 100 ч. смолы проводящего наполнителя, такого, что формованный продукт, изготовленный из указанной композиции, имеет объемную проводимость, по меньшей мере, около 55 См/см, если измеряют в соответствии с испытанием ASTM No. F1529-97; d) от около 0,5 до около 4,0 ч. на 100 ч. смолы инициатора для инициации указанной сополимеризации; и e) от около 0,5 до около 20 ч. на 100 ч. смолы модификатора реологии, который представляет собой одну или несколько композиций, выбранных из группы, состоящей из оксидов и гидроксидов элементов Группы II, карбодиамидов, азиридинов, полиизоцианатов, политетрафторэтилена, перфторполиэфира, полиэтилена, глины и коллоидальной двуокиси кремния, и их смеси.4. A conductive moldable composition comprising: a) 100 parts of an unsaturated prepolymer resin, which comprises one or more resins of an unsaturated polyester and a vinyl ester; b) an unsaturated monomer selected from the group consisting of styrene, alpha-methyl styrene, chlorostyrene, vinyl toluene, divinylbenzene, diallyl phthalate, and methyl methacrylate and mixtures thereof, wherein the ratio of monomers to resin based on the unsaturated prepolymer is from about 40:60 to about 72 : 25 with respect to mass a and b, c) at least about 225 hours per 100 parts of a conductive filler resin such that the molded product made from said composition has a bulk conductivity of at least about 55 cm / cm, if measured in accordance with the test iem ASTM No. F1529-97; d) from about 0.5 to about 4.0 parts per 100 parts of initiator resin for initiating said copolymerization; and e) from about 0.5 to about 20 parts per 100 parts of rheology modifier resin, which is one or more compositions selected from the group consisting of oxides and hydroxides of Group II elements, carbodiamides, aziridines, polyisocyanates, polytetrafluoroethylene, perfluoropolyether, polyethylene, clay and colloidal silicon dioxide, and mixtures thereof. 5. Проводящая формуемая композиция по п.4, где указанная смола на основе форполимера выбирается из группы, состоящей из эпоксивиниловой смолы, бисфенолфумаратной смолы, смолы на основе модифицированного сложного полиэфира бисфенола и фумаровой кислоты, смолы на основе ненасыщенного сложного полиэфира, смолы на основе уретан-модифицированного винилового сложного эфира, бисфенолэпоксидной смолы на основе сложного винилового эфира, смолы на основе эластомер-модифицированного сложного винилового эфира, эпоксиноволачной смолы на основе сложного винилового эфира и смолы на основе ненасыщенного изоцианурата и сложного винилового эфира.5. The conductive moldable composition according to claim 4, wherein said prepolymer resin is selected from the group consisting of epoxy vinyl resin, bisphenol fumarate resin, resin based on a modified polyester bisphenol and fumaric acid, resin based on an unsaturated polyester, urethane resin -modified vinyl ester, bisphenol-epoxy resin based on vinyl ester, resin based on elastomer-modified vinyl ester, epoxy resin-based resin with ozhnogo vinyl ester resin and unsaturated isocyanurate vinyl ester. 6. Проводящая формуемая композиция по п.4, где указанный модификатор реологии содержит оксид магния и/или оксид кальция, и указанное эффективное количество составляет от около 0,5 до около 20 ч. на 100 ч. смолы.6. The conductive moldable composition according to claim 4, wherein said rheology modifier comprises magnesium oxide and / or calcium oxide, and said effective amount is from about 0.5 to about 20 parts per 100 parts of resin. 7. Проводящая формуемая композиция по п.4, где указанный сополимеризуемый материал представляет собой один или несколько мономеров, выбранных из группы, состоящей из стирола и метилметакрилата.7. The conductive moldable composition according to claim 4, wherein said copolymerizable material is one or more monomers selected from the group consisting of styrene and methyl methacrylate. 8. Проводящая формуемая композиция по п.4, дополнительно содержащая сажу.8. A conductive moldable composition according to claim 4, further comprising carbon black. 9. Формованное проводящее изделие, содержащее отвержденную композицию по п.4.9. A molded conductive article containing a cured composition according to claim 4. 10. Формованное проводящее изделие по п.9, где указанное изделие получено литьем под давлением или прямым прессованием.10. A molded conductive product according to claim 9, where the specified product is obtained by injection molding or direct compression.
RU2001128217/09A 1999-03-19 2000-03-17 High-conductivity molded compositions and bipolar plates for fuel cells incorporating these compositions RU2248072C2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US12513899P 1999-03-19 1999-03-19
US60/125,138 1999-03-19
US09/562,641 2000-03-16
US09/526,641 US6251308B1 (en) 1999-03-19 2000-03-16 Highly conductive molding compounds and fuel cell bipolar plates comprising these compounds

Publications (2)

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RU2001128217A true RU2001128217A (en) 2003-07-27
RU2248072C2 RU2248072C2 (en) 2005-03-10

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US (1) US6251308B1 (en)
EP (1) EP1171925B1 (en)
JP (1) JP4885360B2 (en)
KR (1) KR100713299B1 (en)
CN (1) CN1218420C (en)
AT (1) ATE473525T1 (en)
AU (1) AU761468B2 (en)
BR (1) BR0009105B1 (en)
CA (1) CA2367350C (en)
CZ (1) CZ20013124A3 (en)
DE (1) DE60044640D1 (en)
IL (2) IL144968A0 (en)
IS (1) IS6057A (en)
MX (1) MXPA01009407A (en)
NO (1) NO20014527L (en)
RU (1) RU2248072C2 (en)
WO (1) WO2000057506A1 (en)

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