Degradation of silicone rubbers with different hardness in various aqueous solutions
Durability is one of the remaining challenges for practical application of proton exchange membrane fuel cells. Seals or gaskets around perimeters of each cell in a fuel cell stack are important to prevent leakage of reactant gases, avoiding the decay in utilization of gases and in overall cell perf...
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| Veröffentlicht in: | Polymer degradation and stability 2014-11, Vol.109, p.122-128 |
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| container_title | Polymer degradation and stability |
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| creator | Feng, Jun Zhang, Qinglian Tu, Zhengkai Tu, Wenmao Wan, Zhongmin Pan, Mu Zhang, Haining |
| description | Durability is one of the remaining challenges for practical application of proton exchange membrane fuel cells. Seals or gaskets around perimeters of each cell in a fuel cell stack are important to prevent leakage of reactant gases, avoiding the decay in utilization of gases and in overall cell performance. In this study, degradation of silicone rubbers, often used as sealing material in fuel cells, with different hardness in various aqueous solutions is investigated. Although the weight loss increases with the increase in hardness, the durability seems enhanced with the increase in hardness, as revealed by the variation of surface morphology and mechanical properties of silicone rubbers before and after exposure to acidic aqueous solutions. It also turns out that the degradation of silicone rubbers can be catalyzed by protons, leading to severe corrosion of materials in strong acidic environment. The results described in this study may provide guidance to evaluation or selection of silicone rubbers as seals for PEMFC applications. |
| doi_str_mv | 10.1016/j.polymdegradstab.2014.07.011 |
| format | Article |
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Seals or gaskets around perimeters of each cell in a fuel cell stack are important to prevent leakage of reactant gases, avoiding the decay in utilization of gases and in overall cell performance. In this study, degradation of silicone rubbers, often used as sealing material in fuel cells, with different hardness in various aqueous solutions is investigated. Although the weight loss increases with the increase in hardness, the durability seems enhanced with the increase in hardness, as revealed by the variation of surface morphology and mechanical properties of silicone rubbers before and after exposure to acidic aqueous solutions. It also turns out that the degradation of silicone rubbers can be catalyzed by protons, leading to severe corrosion of materials in strong acidic environment. The results described in this study may provide guidance to evaluation or selection of silicone rubbers as seals for PEMFC applications.</description><identifier>ISSN: 0141-3910</identifier><identifier>EISSN: 1873-2321</identifier><identifier>DOI: 10.1016/j.polymdegradstab.2014.07.011</identifier><identifier>CODEN: PDSTDW</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Ageing ; Application fields ; Applied sciences ; Aqueous solutions ; Chemical decomposition ; Degradation ; Durability ; Exact sciences and technology ; Fuel cells ; Gaskets ; Hardness ; Physical properties ; Polymer industry, paints, wood ; Properties and testing ; Proton exchange membrane fuel cell ; Seals ; Silicone rubber ; Silicone rubbers ; Technology of polymers ; Weight loss</subject><ispartof>Polymer degradation and stability, 2014-11, Vol.109, p.122-128</ispartof><rights>2014 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c437t-4f1eb31b0d078fb38b5efb25bec7b654572d15f52a34fde6f6e6a1d9ad3452943</citedby><cites>FETCH-LOGICAL-c437t-4f1eb31b0d078fb38b5efb25bec7b654572d15f52a34fde6f6e6a1d9ad3452943</cites><orcidid>0000-0002-5546-2347</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.polymdegradstab.2014.07.011$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=29026215$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Feng, Jun</creatorcontrib><creatorcontrib>Zhang, Qinglian</creatorcontrib><creatorcontrib>Tu, Zhengkai</creatorcontrib><creatorcontrib>Tu, Wenmao</creatorcontrib><creatorcontrib>Wan, Zhongmin</creatorcontrib><creatorcontrib>Pan, Mu</creatorcontrib><creatorcontrib>Zhang, Haining</creatorcontrib><title>Degradation of silicone rubbers with different hardness in various aqueous solutions</title><title>Polymer degradation and stability</title><description>Durability is one of the remaining challenges for practical application of proton exchange membrane fuel cells. Seals or gaskets around perimeters of each cell in a fuel cell stack are important to prevent leakage of reactant gases, avoiding the decay in utilization of gases and in overall cell performance. In this study, degradation of silicone rubbers, often used as sealing material in fuel cells, with different hardness in various aqueous solutions is investigated. Although the weight loss increases with the increase in hardness, the durability seems enhanced with the increase in hardness, as revealed by the variation of surface morphology and mechanical properties of silicone rubbers before and after exposure to acidic aqueous solutions. It also turns out that the degradation of silicone rubbers can be catalyzed by protons, leading to severe corrosion of materials in strong acidic environment. The results described in this study may provide guidance to evaluation or selection of silicone rubbers as seals for PEMFC applications.</description><subject>Ageing</subject><subject>Application fields</subject><subject>Applied sciences</subject><subject>Aqueous solutions</subject><subject>Chemical decomposition</subject><subject>Degradation</subject><subject>Durability</subject><subject>Exact sciences and technology</subject><subject>Fuel cells</subject><subject>Gaskets</subject><subject>Hardness</subject><subject>Physical properties</subject><subject>Polymer industry, paints, wood</subject><subject>Properties and testing</subject><subject>Proton exchange membrane fuel cell</subject><subject>Seals</subject><subject>Silicone rubber</subject><subject>Silicone rubbers</subject><subject>Technology of polymers</subject><subject>Weight loss</subject><issn>0141-3910</issn><issn>1873-2321</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqNUMtOHDEQtCIiZSH5B1-QcpmJ24-Z3UMOEQkECYkLOVt-tINXs-ONe5aIv2eGRRw40Zc6dFV1dTF2DqIFAd23bbsvw-Mu4t_qIk3Ot1KAbkXfCoAPbAXrXjVSSThhq3kBjdqA-MROibZiHm1gxe5-PqvdlMvIS-KUhxzKiLwevMdK_H-e7nnMKWHFceL3rsYRiXge-YOruRyIu38HXJDKcFh86DP7mNxA-OUFz9ify193F7-bm9ur64sfN03Qqp8anQC9Ai-i6NfJq7U3mLw0HkPvO6NNLyOYZKRTOkXsUoedg7hxUWkjN1qdsa9H330tcwaa7C5TwGFw4xLIQmdAGyOkmKnfj9RQC1HFZPc171x9tCDs0qbd2jdt2qVNK3o7tznrz19OOQpuSNWNIdOridwI2UkwM-_qyMP574eM1VLIOAaMuWKYbCz5nRefALG0los</recordid><startdate>20141101</startdate><enddate>20141101</enddate><creator>Feng, Jun</creator><creator>Zhang, Qinglian</creator><creator>Tu, Zhengkai</creator><creator>Tu, Wenmao</creator><creator>Wan, Zhongmin</creator><creator>Pan, Mu</creator><creator>Zhang, Haining</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SE</scope><scope>7SR</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope><orcidid>https://orcid.org/0000-0002-5546-2347</orcidid></search><sort><creationdate>20141101</creationdate><title>Degradation of silicone rubbers with different hardness in various aqueous solutions</title><author>Feng, Jun ; Zhang, Qinglian ; Tu, Zhengkai ; Tu, Wenmao ; Wan, Zhongmin ; Pan, Mu ; Zhang, Haining</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c437t-4f1eb31b0d078fb38b5efb25bec7b654572d15f52a34fde6f6e6a1d9ad3452943</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Ageing</topic><topic>Application fields</topic><topic>Applied sciences</topic><topic>Aqueous solutions</topic><topic>Chemical decomposition</topic><topic>Degradation</topic><topic>Durability</topic><topic>Exact sciences and technology</topic><topic>Fuel cells</topic><topic>Gaskets</topic><topic>Hardness</topic><topic>Physical properties</topic><topic>Polymer industry, paints, wood</topic><topic>Properties and testing</topic><topic>Proton exchange membrane fuel cell</topic><topic>Seals</topic><topic>Silicone rubber</topic><topic>Silicone rubbers</topic><topic>Technology of polymers</topic><topic>Weight loss</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Feng, Jun</creatorcontrib><creatorcontrib>Zhang, Qinglian</creatorcontrib><creatorcontrib>Tu, Zhengkai</creatorcontrib><creatorcontrib>Tu, Wenmao</creatorcontrib><creatorcontrib>Wan, Zhongmin</creatorcontrib><creatorcontrib>Pan, Mu</creatorcontrib><creatorcontrib>Zhang, Haining</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Corrosion Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Polymer degradation and stability</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Feng, Jun</au><au>Zhang, Qinglian</au><au>Tu, Zhengkai</au><au>Tu, Wenmao</au><au>Wan, Zhongmin</au><au>Pan, Mu</au><au>Zhang, Haining</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Degradation of silicone rubbers with different hardness in various aqueous solutions</atitle><jtitle>Polymer degradation and stability</jtitle><date>2014-11-01</date><risdate>2014</risdate><volume>109</volume><spage>122</spage><epage>128</epage><pages>122-128</pages><issn>0141-3910</issn><eissn>1873-2321</eissn><coden>PDSTDW</coden><abstract>Durability is one of the remaining challenges for practical application of proton exchange membrane fuel cells. 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| identifier | ISSN: 0141-3910 |
| ispartof | Polymer degradation and stability, 2014-11, Vol.109, p.122-128 |
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| language | eng |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Ageing Application fields Applied sciences Aqueous solutions Chemical decomposition Degradation Durability Exact sciences and technology Fuel cells Gaskets Hardness Physical properties Polymer industry, paints, wood Properties and testing Proton exchange membrane fuel cell Seals Silicone rubber Silicone rubbers Technology of polymers Weight loss |
| title | Degradation of silicone rubbers with different hardness in various aqueous solutions |
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