Bleed-out suppression of silicone rubber by electron beam crosslinking
A silicone rubber with a highly crosslinked surface layer was synthesized by a two-step crosslinking reaction with thermal processing and subsequent electron beam (EB) irradiation. The effect of the EB irradiation on the silicone rubber was evaluated by measuring the volume swelling ratio, shore har...
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| Veröffentlicht in: | Radiation physics and chemistry (Oxford, England : 1993) England : 1993), 2022-04, Vol.193, p.110002, Article 110002 |
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| container_title | Radiation physics and chemistry (Oxford, England : 1993) |
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| creator | Ueki, Yuji Oshida, Masahiro Sando, Hidetaka Seko, Noriaki |
| description | A silicone rubber with a highly crosslinked surface layer was synthesized by a two-step crosslinking reaction with thermal processing and subsequent electron beam (EB) irradiation. The effect of the EB irradiation on the silicone rubber was evaluated by measuring the volume swelling ratio, shore hardness, tensile breaking strength, and water contact angle of the EB-crosslinked silicone rubber. The silicone rubber was effectively crosslinked as the EB irradiation increased. The optimal EB irradiation dose to form the EB-crosslinked structure in the silicone rubber was 500 kGy. Insufficient EB irradiation does not form a sufficient EB-crosslinked structure, while excessive EB irradiation dose would decompose the silicone rubber. The finer crosslinked structures of the surface layer of the silicone rubber formed by EB irradiation could function as a leak-proof filter to prevent the bleed-out of low-molecular-weight siloxanes inside the silicone rubber. The effect of the type of EB-crosslinking agent on the bleed-out suppression effect was investigated. The bleed-out suppression effect was improved in the following order: no EB-crosslinking agent |
| doi_str_mv | 10.1016/j.radphyschem.2022.110002 |
| format | Article |
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•Silicone rubber with a highly crosslinked surface layer was synthesized.•Highly crosslinked surface layer was formed by thermal- and EB-crosslinking.•Highly crosslinked surface layer acted as a leak-proof filter for low siloxanes.•Bleed-out ratio of thermal- and EB-crosslinked silicone rubber was reduced by 60%.</description><identifier>ISSN: 0969-806X</identifier><identifier>EISSN: 1879-0895</identifier><identifier>DOI: 10.1016/j.radphyschem.2022.110002</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Bleed-out suppression ; Bleeding ; Contact angle ; Crosslinking ; Electron beam ; Electron beams ; Ethylene glycol ; Glycol dimethacrylates ; Radiation dosage ; Rubber ; Silicone resins ; Silicone rubber ; Silicones ; Siloxanes ; Surface layers ; Surface modification ; Swelling ratio</subject><ispartof>Radiation physics and chemistry (Oxford, England : 1993), 2022-04, Vol.193, p.110002, Article 110002</ispartof><rights>2022 Elsevier Ltd</rights><rights>Copyright Elsevier BV Apr 2022</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c393t-18ac747a3f9e83b8e7287f4a2a534e2da0d01bdd1ace0c66620e000a96dd09eb3</citedby><cites>FETCH-LOGICAL-c393t-18ac747a3f9e83b8e7287f4a2a534e2da0d01bdd1ace0c66620e000a96dd09eb3</cites><orcidid>0000-0002-8976-7026 ; 0000-0002-5600-7311</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.radphyschem.2022.110002$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,777,781,3537,27905,27906,45976</link.rule.ids></links><search><creatorcontrib>Ueki, Yuji</creatorcontrib><creatorcontrib>Oshida, Masahiro</creatorcontrib><creatorcontrib>Sando, Hidetaka</creatorcontrib><creatorcontrib>Seko, Noriaki</creatorcontrib><title>Bleed-out suppression of silicone rubber by electron beam crosslinking</title><title>Radiation physics and chemistry (Oxford, England : 1993)</title><description>A silicone rubber with a highly crosslinked surface layer was synthesized by a two-step crosslinking reaction with thermal processing and subsequent electron beam (EB) irradiation. The effect of the EB irradiation on the silicone rubber was evaluated by measuring the volume swelling ratio, shore hardness, tensile breaking strength, and water contact angle of the EB-crosslinked silicone rubber. The silicone rubber was effectively crosslinked as the EB irradiation increased. The optimal EB irradiation dose to form the EB-crosslinked structure in the silicone rubber was 500 kGy. Insufficient EB irradiation does not form a sufficient EB-crosslinked structure, while excessive EB irradiation dose would decompose the silicone rubber. The finer crosslinked structures of the surface layer of the silicone rubber formed by EB irradiation could function as a leak-proof filter to prevent the bleed-out of low-molecular-weight siloxanes inside the silicone rubber. The effect of the type of EB-crosslinking agent on the bleed-out suppression effect was investigated. The bleed-out suppression effect was improved in the following order: no EB-crosslinking agent < ethylene glycol dimethacrylate < silicone diacrylate < trimethylolpropane trimethacrylate (TMPTMA). The thermally and EB-crosslinked silicone rubber with TMPTMA successfully reduced the bleed-out ratio by approximately 60%, compared to the thermally crosslinked silicone rubber without EB irradiation and EB crosslinking agent.
•Silicone rubber with a highly crosslinked surface layer was synthesized.•Highly crosslinked surface layer was formed by thermal- and EB-crosslinking.•Highly crosslinked surface layer acted as a leak-proof filter for low siloxanes.•Bleed-out ratio of thermal- and EB-crosslinked silicone rubber was reduced by 60%.</description><subject>Bleed-out suppression</subject><subject>Bleeding</subject><subject>Contact angle</subject><subject>Crosslinking</subject><subject>Electron beam</subject><subject>Electron beams</subject><subject>Ethylene glycol</subject><subject>Glycol dimethacrylates</subject><subject>Radiation dosage</subject><subject>Rubber</subject><subject>Silicone resins</subject><subject>Silicone rubber</subject><subject>Silicones</subject><subject>Siloxanes</subject><subject>Surface layers</subject><subject>Surface modification</subject><subject>Swelling ratio</subject><issn>0969-806X</issn><issn>1879-0895</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNqNkDFPwzAQhS0EEqXwH4KYE852m9gjVBSQKrGAxGY59oU6pHGwG6T-ewxhYGS64d579-4j5JJCQYGW120RtB22h2i2uCsYMFZQCgDsiMyoqGQOQi6PyQxkKXMB5espOYuxTYpKLPmMrG87RJv7cZ_FcRgCxuh8n_kmi65zxveYhbGuMWT1IcMOzT6kdY16l5ngY-xc_-76t3Ny0ugu4sXvnJOX9d3z6iHfPN0_rm42ueGS73MqtKkWleaNRMFrgRUTVbPQTC_5ApnVYIHW1lJtEExZlgwwVdWytBYk1nxOrqbcIfiPEeNetX4MfTqpWMklcEoZTyo5qX4qBmzUENxOh4OioL6xqVb9waa-sakJW_KuJi-mNz4dBhWNw96gdSF9r6x3_0j5AgJefOs</recordid><startdate>20220401</startdate><enddate>20220401</enddate><creator>Ueki, Yuji</creator><creator>Oshida, Masahiro</creator><creator>Sando, Hidetaka</creator><creator>Seko, Noriaki</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-8976-7026</orcidid><orcidid>https://orcid.org/0000-0002-5600-7311</orcidid></search><sort><creationdate>20220401</creationdate><title>Bleed-out suppression of silicone rubber by electron beam crosslinking</title><author>Ueki, Yuji ; Oshida, Masahiro ; Sando, Hidetaka ; Seko, Noriaki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c393t-18ac747a3f9e83b8e7287f4a2a534e2da0d01bdd1ace0c66620e000a96dd09eb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Bleed-out suppression</topic><topic>Bleeding</topic><topic>Contact angle</topic><topic>Crosslinking</topic><topic>Electron beam</topic><topic>Electron beams</topic><topic>Ethylene glycol</topic><topic>Glycol dimethacrylates</topic><topic>Radiation dosage</topic><topic>Rubber</topic><topic>Silicone resins</topic><topic>Silicone rubber</topic><topic>Silicones</topic><topic>Siloxanes</topic><topic>Surface layers</topic><topic>Surface modification</topic><topic>Swelling ratio</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ueki, Yuji</creatorcontrib><creatorcontrib>Oshida, Masahiro</creatorcontrib><creatorcontrib>Sando, Hidetaka</creatorcontrib><creatorcontrib>Seko, Noriaki</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Radiation physics and chemistry (Oxford, England : 1993)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ueki, Yuji</au><au>Oshida, Masahiro</au><au>Sando, Hidetaka</au><au>Seko, Noriaki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Bleed-out suppression of silicone rubber by electron beam crosslinking</atitle><jtitle>Radiation physics and chemistry (Oxford, England : 1993)</jtitle><date>2022-04-01</date><risdate>2022</risdate><volume>193</volume><spage>110002</spage><pages>110002-</pages><artnum>110002</artnum><issn>0969-806X</issn><eissn>1879-0895</eissn><abstract>A silicone rubber with a highly crosslinked surface layer was synthesized by a two-step crosslinking reaction with thermal processing and subsequent electron beam (EB) irradiation. The effect of the EB irradiation on the silicone rubber was evaluated by measuring the volume swelling ratio, shore hardness, tensile breaking strength, and water contact angle of the EB-crosslinked silicone rubber. The silicone rubber was effectively crosslinked as the EB irradiation increased. The optimal EB irradiation dose to form the EB-crosslinked structure in the silicone rubber was 500 kGy. Insufficient EB irradiation does not form a sufficient EB-crosslinked structure, while excessive EB irradiation dose would decompose the silicone rubber. The finer crosslinked structures of the surface layer of the silicone rubber formed by EB irradiation could function as a leak-proof filter to prevent the bleed-out of low-molecular-weight siloxanes inside the silicone rubber. The effect of the type of EB-crosslinking agent on the bleed-out suppression effect was investigated. The bleed-out suppression effect was improved in the following order: no EB-crosslinking agent < ethylene glycol dimethacrylate < silicone diacrylate < trimethylolpropane trimethacrylate (TMPTMA). The thermally and EB-crosslinked silicone rubber with TMPTMA successfully reduced the bleed-out ratio by approximately 60%, compared to the thermally crosslinked silicone rubber without EB irradiation and EB crosslinking agent.
•Silicone rubber with a highly crosslinked surface layer was synthesized.•Highly crosslinked surface layer was formed by thermal- and EB-crosslinking.•Highly crosslinked surface layer acted as a leak-proof filter for low siloxanes.•Bleed-out ratio of thermal- and EB-crosslinked silicone rubber was reduced by 60%.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.radphyschem.2022.110002</doi><orcidid>https://orcid.org/0000-0002-8976-7026</orcidid><orcidid>https://orcid.org/0000-0002-5600-7311</orcidid></addata></record> |
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| ispartof | Radiation physics and chemistry (Oxford, England : 1993), 2022-04, Vol.193, p.110002, Article 110002 |
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| source | Elsevier ScienceDirect Journals |
| subjects | Bleed-out suppression Bleeding Contact angle Crosslinking Electron beam Electron beams Ethylene glycol Glycol dimethacrylates Radiation dosage Rubber Silicone resins Silicone rubber Silicones Siloxanes Surface layers Surface modification Swelling ratio |
| title | Bleed-out suppression of silicone rubber by electron beam crosslinking |
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