CN107955556A - 一种燃料电池用导电密封胶 - Google Patents
一种燃料电池用导电密封胶 Download PDFInfo
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- 239000000446 fuel Substances 0.000 title claims abstract description 50
- 239000000565 sealant Substances 0.000 title claims abstract description 29
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 28
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 28
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 25
- 239000000843 powder Substances 0.000 claims abstract description 25
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000919 ceramic Substances 0.000 claims abstract description 18
- 229920005549 butyl rubber Polymers 0.000 claims abstract description 17
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 14
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 14
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 14
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 13
- 239000011231 conductive filler Substances 0.000 claims abstract description 13
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims abstract description 13
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims abstract description 13
- 229910052580 B4C Inorganic materials 0.000 claims abstract description 12
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 235000011187 glycerol Nutrition 0.000 claims abstract description 12
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 36
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 23
- 235000021355 Stearic acid Nutrition 0.000 claims description 20
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 20
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 20
- 239000008117 stearic acid Substances 0.000 claims description 20
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- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
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- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 12
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 12
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- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 12
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- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 4
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- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims 1
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- 229910052796 boron Inorganic materials 0.000 claims 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 claims 1
- 235000019253 formic acid Nutrition 0.000 claims 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims 1
- FCJSHPDYVMKCHI-UHFFFAOYSA-N phenyl benzoate Chemical compound C=1C=CC=CC=1C(=O)OC1=CC=CC=C1 FCJSHPDYVMKCHI-UHFFFAOYSA-N 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 210000004027 cell Anatomy 0.000 abstract description 38
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000003712 anti-aging effect Effects 0.000 abstract description 2
- 239000012752 auxiliary agent Substances 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 238000000280 densification Methods 0.000 abstract description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- OKJADYKTJJGKDX-UHFFFAOYSA-N Butyl pentanoate Chemical compound CCCCOC(=O)CCCC OKJADYKTJJGKDX-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
本发明公开了一种燃料电池用导电密封胶，其配方包括以下重量份数的各组分：丁基橡胶45～60份、纳米陶瓷粉20～35份、纳米钛白粉25～30份、纳米碳化硅20～30份、碳化硼10～18份、导电填料6～10份、滑石粉5～8份、聚四氟乙烯25～30份、聚氨酯树脂20～30份、羧甲基纤维素钠12～16份、甘油8～12份、线型酚醛树脂8～10份以及若干助剂；本发明的燃料电池用导电密封胶可以在燃料电池表面形成一层致密而坚硬的涂层，起到高强度，高耐磨，耐高温、耐腐蚀、抗老化的作用，从而提高燃料电池的密封性能，并且有效延长燃料电池的使用寿命，并且扩大了燃料电池的使用范围。
Description
技术领域
本发明涉及燃料电池密封材料技术领域，具体为一种燃料电池用导电密封胶及其制备方法。
背景技术
燃料电池(Fuel Cell)是一种将存在于燃料与氧化剂中的化学能直接转化为电能的发电装置。燃料和空气分别送进燃料电池，电就被奇妙地生产出来。它从外表上看有正负极和电解质等，像一个蓄电池，但实质上它不能“储电”而是一个“发电厂”。
燃料电池其原理是一种电化学装置，其组成与一般电池相同。其单体电池是由正负两个电极(负极即燃料电极和正极即氧化剂电极)以及电解质组成。不同的是一般电池的活性物质贮存在电池内部，因此，限制了电池容量。而燃料电池的正、负极本身不包含活性物质，只是个催化转换元件。因此燃料电池是名符其实的把化学能转化为电能的能量转换机器。电池工作时，燃料和氧化剂由外部供给，进行反应。原则上只要反应物不断输入，反应产物不断排除，燃料电池就能连续地发电。
燃料电池由很多小电池单元组成。其各层之间采用密封胶防止氢气和氧气泄露。有机硅橡胶一直以来都用来做燃料电池的密封材料，但有机硅透气性高，不适合氢气、氧气等高透过性气体的密封。
近年来，利用纳米物质进行材料改性加工的研究越来越多，但应用于燃料电池密封材料方面的报道很少，因此我们可以利用纳米物质对燃料电池密封材料进行改性，以期获得密封性、抗老化性、抗腐蚀性等性能优异的燃料电池用导电密封胶。
发明内容
本发明要解决的技术问题是克服现有技术缺陷，提供一种燃料电池用导电密封胶及其制备方法。
为了解决上述技术问题，本发明提供了如下的技术方案：
一种燃料电池用导电密封胶，其配方包括以下重量份数的各组分：
丁基橡胶45～60份、纳米陶瓷粉20～35份、纳米钛白粉25～30份、纳米碳化硅20～30份、碳化硼10～18份、导电填料6～10份、硅烷偶联剂5～8份、氧化铝4～8份、碳纤维3～5份、石英粉3～5份、滑石粉5～8份、石墨粉2～3份、聚四氟乙烯25～30份、聚氨酯树脂20～30份、羧甲基纤维素钠12～16份、甘油8～12份、线型酚醛树脂8～10份、亚磷酸酯3～5份、邻苯二甲酸二丁酯3～6份、邻羟基苯甲酸苯酯3～6份、硬脂酸2～3份、氧化蓖麻油3～5份、聚酯1～2份、硬脂酸1～2份、松香0.5～1份。
进一步的，一种燃料电池用导电密封胶，其配方包括以下重量份数的各组分：
丁基橡胶50～55份、纳米陶瓷粉25～30份、纳米钛白粉28份、纳米碳化硅24～26份、碳化硼12～16份、导电填料8份、硅烷偶联剂6份、氧化铝6份、碳纤维4份、石英粉4份、滑石粉6份、石墨粉2～3份、聚四氟乙烯28份、聚氨酯树脂24～26份、羧甲基纤维素钠14份、甘油10份、线型酚醛树脂8份、亚磷酸酯4份、邻苯二甲酸二丁酯5份、邻羟基苯甲酸苯酯4～6份、硬脂酸2～3份、氧化蓖麻油4份、聚酯1～2份、硬脂酸1～2份、松香0.5～1份。
优选的，所述丁基橡胶的粒径为30～50纳米。
优选的，所述纳米陶瓷粉的粒径为80～100纳米。
一种燃料电池用导电密封胶的制备方法，包括以下几个步骤：
(1)向高速混合机中加入导电填料、硅烷偶联剂和氧化铝、石墨粉和甘油升温至65～80℃后用超声波发生器中充分混合10～15min，再加入丁基橡胶、纳米陶瓷粉、纳米钛白粉、纳米碳化硅、碳化硼、石英粉、滑石粉继续用超声波发生器中充分混合10-15min得混合物I；优选的，超声波发生器的功率为1.2KW～1.5KW，时间5～15分钟，工作方式为间歇式工作，每工作30秒，暂停30秒；
(2)将混合物I加入到砂磨机中，砂磨20～60min后得混合物II；优选的，砂磨至细度小于10um；
(3)先将聚四氟乙烯、聚氨酯树脂、羧甲基纤维素钠、线型酚醛树脂、亚磷酸酯、硬脂酸、聚酯、碳纤维加入到高速混合机中，混合10-15min后再加入混合物II，然后升温至75-80℃，保温15-20min后开始自然冷却降温，当温度降至35-40℃后再加入邻苯二甲酸二丁酯、邻羟基苯甲酸苯酯、氧化蓖麻油、硬脂酸和松香继续混合20-25min，即得混合物III；
(4)将混合物III经挤出机在90-100℃下挤压成片，冷却破碎后加入到粉碎机中，粉碎后的粉末颗粒经180目筛过筛，即得成品。
本发明的燃料电池用导电密封胶，选用丁基橡胶、纳米陶瓷粉、纳米钛白粉、纳米碳化硅作为主要材料同时加入各种助剂对聚四氟乙烯和聚氨酯树脂进行改性，得到的复合材料可以在燃料电池表面形成一层致密而坚硬的涂层，起到高强度，高耐磨，耐高温、耐腐蚀、抗老化的作用，从而提高燃料电池的密封性能，并且有效延长燃料电池的使用寿命，并且扩大了燃料电池的使用范围。
具体实施方式
以下对本发明的优选实施例进行说明，应当理解，此处所描述的优选实施例仅用于说明和解释本发明，并不用于限定本发明。
实施例1
一种燃料电池用导电密封胶，其配方包括以下重量份数的各组分：
丁基橡胶45份、纳米陶瓷粉35份、纳米钛白粉25份、纳米碳化硅30份、碳化硼10份、导电填料10份、硅烷偶联剂5份、氧化铝8份、碳纤维3份、石英粉5份、滑石粉5份、石墨粉3份、聚四氟乙烯25份、聚氨酯树脂30份、羧甲基纤维素钠12份、甘油12份、线型酚醛树脂8份、亚磷酸酯5份、邻苯二甲酸二丁酯3份、邻羟基苯甲酸苯酯6份、硬脂酸2份、氧化蓖麻油5份、聚酯1份、硬脂酸2份、松香0.5份。
一种燃料电池用导电密封胶的制备方法，包括以下几个步骤：
(1)向高速混合机中加入导电填料、硅烷偶联剂和氧化铝、石墨粉和甘油升温至65～80℃后用超声波发生器中充分混合10～15min，再加入丁基橡胶、纳米陶瓷粉、纳米钛白粉、纳米碳化硅、碳化硼、石英粉、滑石粉继续用超声波发生器中充分混合10-15min得混合物I；
(2)将混合物I加入到砂磨机中，砂磨20～60min后得混合物II；
(3)先将聚四氟乙烯、聚氨酯树脂、羧甲基纤维素钠、线型酚醛树脂、亚磷酸酯、硬脂酸、聚酯、碳纤维加入到高速混合机中，混合10-15min后再加入混合物II，然后升温至75-80℃，保温15-20min后开始自然冷却降温，当温度降至35-40℃后再加入邻苯二甲酸二丁酯、邻羟基苯甲酸苯酯、氧化蓖麻油、硬脂酸和松香继续混合20-25min，即得混合物III；
(4)将混合物III经挤出机在90-100℃下挤压成片，冷却破碎后加入到粉碎机中，粉碎后的粉末颗粒经180目筛过筛，即得成品。
实施例2
一种燃料电池用导电密封胶，其配方包括以下重量份数的各组分：
丁基橡胶60份、纳米陶瓷粉20份、纳米钛白粉30份、纳米碳化硅20份、碳化硼18份、导电填料6份、硅烷偶联剂8份、氧化铝4份、碳纤维5份、石英粉3份、滑石粉8份、石墨粉2份、聚四氟乙烯30份、聚氨酯树脂20份、羧甲基纤维素钠16份、甘油8份、线型酚醛树脂10份、亚磷酸酯3份、邻苯二甲酸二丁酯6份、邻羟基苯甲酸苯酯3份、硬脂酸3份、氧化蓖麻油3份、聚酯2份、硬脂酸1份、松香1份。
一种燃料电池用导电密封胶的制备方法，包括以下几个步骤：
(1)向高速混合机中加入导电填料、硅烷偶联剂和氧化铝、石墨粉和甘油升温至65～80℃后用超声波发生器中充分混合10～15min，再加入丁基橡胶、纳米陶瓷粉、纳米钛白粉、纳米碳化硅、碳化硼、石英粉、滑石粉继续用超声波发生器中充分混合10-15min得混合物I；超声波发生器的功率为1.2KW～1.5KW，时间5～15分钟，工作方式为间歇式工作，每工作30秒，暂停30秒；
(2)将混合物I加入到砂磨机中，砂磨20～60min后得混合物II；砂磨至细度小于10um；
(3)先将聚四氟乙烯、聚氨酯树脂、羧甲基纤维素钠、线型酚醛树脂、亚磷酸酯、硬脂酸、聚酯、碳纤维加入到高速混合机中，混合10-15min后再加入混合物II，然后升温至75-80℃，保温15-20min后开始自然冷却降温，当温度降至35-40℃后再加入邻苯二甲酸二丁酯、邻羟基苯甲酸苯酯、氧化蓖麻油、硬脂酸和松香继续混合20-25min，即得混合物III；
(4)将混合物III经挤出机在90-100℃下挤压成片，冷却破碎后加入到粉碎机中，粉碎后的粉末颗粒经180目筛过筛，即得成品。
实施例3
一种燃料电池用导电密封胶，其配方包括以下重量份数的各组分：
丁基橡胶55份、纳米陶瓷粉30份、纳米钛白粉28份、纳米碳化硅26份、碳化硼16份、导电填料8份、硅烷偶联剂6份、氧化铝6份、碳纤维4份、石英粉4份、滑石粉6份、石墨粉3份、聚四氟乙烯28份、聚氨酯树脂26份、羧甲基纤维素钠14份、甘油10份、线型酚醛树脂8份、亚磷酸酯4份、邻苯二甲酸二丁酯5份、邻羟基苯甲酸苯酯6份、硬脂酸3份、氧化蓖麻油4份、聚酯2份、硬脂酸2份、松香1份。
丁基橡胶的粒径为30～50纳米、纳米陶瓷粉的粒径为80～100纳米。
本实施例的燃料电池用导电密封胶的制备方法同实施例2。
实施例4
一种燃料电池用导电密封胶，其配方包括以下重量份数的各组分：
丁基橡胶50份、纳米陶瓷粉25份、纳米钛白粉28份、纳米碳化硅24份、碳化硼12份、导电填料8份、硅烷偶联剂6份、氧化铝6份、碳纤维4份、石英粉4份、滑石粉6份、石墨粉2份、聚四氟乙烯28份、聚氨酯树脂24份、羧甲基纤维素钠14份、甘油10份、线型酚醛树脂8份、亚磷酸酯4份、邻苯二甲酸二丁酯5份、邻羟基苯甲酸苯酯4份、硬脂酸2份、氧化蓖麻油4份、聚酯1份、硬脂酸1份、松香0.5份。
丁基橡胶的粒径为30～50纳米、纳米陶瓷粉的粒径为80～100纳米。
本实施例的燃料电池用导电密封胶的制备方法同实施例2。
最后应说明的是：以上所述仅为本发明的优选实施例而已，并不用于限制本发明，尽管参照前述实施例对本发明进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
Claims (7)
1.一种燃料电池用导电密封胶，其特征在于，其配方包括以下重量份数的各组分：
丁基橡胶45～60份、纳米陶瓷粉20～35份、纳米钛白粉25～30份、纳米碳化硅20～30份、碳化硼10～18份、导电填料6～10份、硅烷偶联剂5～8份、氧化铝4～8份、碳纤维3～5份、石英粉3～5份、滑石粉5～8份、石墨粉2～3份、聚四氟乙烯25～30份、聚氨酯树脂20～30份、羧甲基纤维素钠12～16份、甘油8～12份、线型酚醛树脂8～10份、亚磷酸酯3～5份、邻苯二甲酸二丁酯3～6份、邻羟基苯甲酸苯酯3～6份、硬脂酸2～3份、氧化蓖麻油3～5份、聚酯1～2份、硬脂酸1～2份、松香0.5～1份。
2.如权利要求1所述的一种燃料电池用导电密封胶，其特征在于，其配方包括以下重量份数的各组分：
丁基橡胶50～55份、纳米陶瓷粉25～30份、纳米钛白粉28份、纳米碳化硅24～26份、碳化硼12～16份、导电填料8份、硅烷偶联剂6份、氧化铝6份、碳纤维4份、石英粉4份、滑石粉6份、石墨粉2～3份、聚四氟乙烯28份、聚氨酯树脂24～26份、羧甲基纤维素钠14份、甘油10份、线型酚醛树脂8份、亚磷酸酯4份、邻苯二甲酸二丁酯5份、邻羟基苯甲酸苯酯4～6份、硬脂酸2～3份、氧化蓖麻油4份、聚酯1～2份、硬脂酸1～2份、松香0.5～1份。
3.如权利要求1或2任一项所述的一种燃料电池用导电密封胶，其特征在于，所述丁基橡胶的粒径为30～50纳米。
4.如权利要求1或2任一项所述的一种燃料电池用导电密封胶，其特征在于，所述纳米陶瓷粉的粒径为80～100纳米。
5.一种如权利要求1或2任一项所述的燃料电池用导电密封胶的制备方法，其特征在于，包括以下几个步骤：
(1)向高速混合机中加入导电填料、硅烷偶联剂和氧化铝、石墨粉和甘油升温至65～80℃后用超声波发生器中充分混合10～15min，再加入丁基橡胶、纳米陶瓷粉、纳米钛白粉、纳米碳化硅、碳化硼、石英粉、滑石粉继续用超声波发生器中充分混合10-15min得混合物I；
(2)将混合物I加入到砂磨机中，砂磨20～60min后得混合物II；
(3)先将聚四氟乙烯、聚氨酯树脂、羧甲基纤维素钠、线型酚醛树脂、亚磷酸酯、硬脂酸、聚酯、碳纤维加入到高速混合机中，混合10-15min后再加入混合物II，然后升温至75-80℃，保温15-20min后开始自然冷却降温，当温度降至35-40℃后再加入邻苯二甲酸二丁酯、邻羟基苯甲酸苯酯、氧化蓖麻油、硬脂酸和松香继续混合20-25min，即得混合物III；
(4)将混合物III经挤出机在90-100℃下挤压成片，冷却破碎后加入到粉碎机中，粉碎后的粉末颗粒经180目筛过筛，即得成品。
6.如权利要求5所述的一种如权利要求1所述的燃料电池用导电密封胶的制备方法，其特征在于，在步骤1)中超声波发生器的功率为1.2KW～1.5KW，时间5～15分钟，工作方式为间歇式工作，每工作30秒，暂停30秒。
7.如权利要求5所述的一种如权利要求1所述的燃料电池用导电密封胶的制备方法，其特征在于，在步骤2)中砂磨至细度小于10um。
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| CN112259757A (zh) * | 2020-12-17 | 2021-01-22 | 安徽明天氢能科技股份有限公司 | 一种新型膜电极密封填充剂及其制备方法 |
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| CN112259757A (zh) * | 2020-12-17 | 2021-01-22 | 安徽明天氢能科技股份有限公司 | 一种新型膜电极密封填充剂及其制备方法 |
| CN112259757B (zh) * | 2020-12-17 | 2022-05-17 | 安徽明天氢能科技股份有限公司 | 一种膜电极密封填充剂及其制备方法 |
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