Liquid nucleating additives for improving thermal insulating properties and mechanical strength of polyisocyanurate foams
The effects of liquid-type nucleating silane additives on the cell structure, mechanical strength, and thermal insulating properties of the polyisocyanurate (PIR) foams have been studied. The PIR foams synthesized with hexamethyldisilazane (HMDS) as a silane additive showed the smaller average cell...
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| Veröffentlicht in: | Journal of materials science 2010-10, Vol.45 (19), p.5412-5419 |
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| creator | Kang, Min Jung Kim, Youn Hee Park, Gun Pyo Han, Mi Sun Kim, Woo Nyon Park, Sang Do |
| description | The effects of liquid-type nucleating silane additives on the cell structure, mechanical strength, and thermal insulating properties of the polyisocyanurate (PIR) foams have been studied. The PIR foams synthesized with hexamethyldisilazane (HMDS) as a silane additive showed the smaller average cell size and lower thermal conductivity than those of the PIR foams prepared with the hexamethyldisiloxane, dimethoxydimethylsilane, and hexadecyltrimethoxysilane. When HMDS was added, average cell size of the PIR foam was becoming smaller due to lower surface tension of the polyol solution, thereby the nucleation rate and number of bubbles produced were increased and then the cell size becomes smaller. The additives likely act as nucleating agents during the formation of PIR foams. The smaller cell size appears to be one of the major reasons for the improvement of thermal insulation properties and mechanical properties of the PIR foams. From the results of cell size, thermal conductivity, and mechanical strength of the PIR foams, it is suggested that the HMDS may be the efficient liquid-type additive for the reduction of cell size and improvement of the thermal insulation property of the PIR foams. |
| doi_str_mv | 10.1007/s10853-010-4594-1 |
| format | Article |
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The PIR foams synthesized with hexamethyldisilazane (HMDS) as a silane additive showed the smaller average cell size and lower thermal conductivity than those of the PIR foams prepared with the hexamethyldisiloxane, dimethoxydimethylsilane, and hexadecyltrimethoxysilane. When HMDS was added, average cell size of the PIR foam was becoming smaller due to lower surface tension of the polyol solution, thereby the nucleation rate and number of bubbles produced were increased and then the cell size becomes smaller. The additives likely act as nucleating agents during the formation of PIR foams. The smaller cell size appears to be one of the major reasons for the improvement of thermal insulation properties and mechanical properties of the PIR foams. From the results of cell size, thermal conductivity, and mechanical strength of the PIR foams, it is suggested that the HMDS may be the efficient liquid-type additive for the reduction of cell size and improvement of the thermal insulation property of the PIR foams.</description><identifier>ISSN: 0022-2461</identifier><identifier>EISSN: 1573-4803</identifier><identifier>DOI: 10.1007/s10853-010-4594-1</identifier><language>eng</language><publisher>Boston: Springer US</publisher><subject>Additives ; Characterization and Evaluation of Materials ; Chemistry and Materials Science ; Classical Mechanics ; Crystallography and Scattering Methods ; Electric properties ; Foams ; Heat conductivity ; Heat transfer ; Hexamethyldisiloxane ; Materials Science ; Mechanical properties ; Nucleation ; Polyisocyanurates ; Polymer Sciences ; Polyols ; Reagents ; Silane ; Silanes ; Solid Mechanics ; Strength ; Surface tension ; Thermal conductivity ; Thermal insulation</subject><ispartof>Journal of materials science, 2010-10, Vol.45 (19), p.5412-5419</ispartof><rights>Springer Science+Business Media, LLC 2010</rights><rights>COPYRIGHT 2010 Springer</rights><rights>Journal of Materials Science is a copyright of Springer, (2010). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c487t-3c987f10aae0c7d5f1b2d859f111e969233bb97bef60aa8d37806cb84f906b9c3</citedby><cites>FETCH-LOGICAL-c487t-3c987f10aae0c7d5f1b2d859f111e969233bb97bef60aa8d37806cb84f906b9c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10853-010-4594-1$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10853-010-4594-1$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Kang, Min Jung</creatorcontrib><creatorcontrib>Kim, Youn Hee</creatorcontrib><creatorcontrib>Park, Gun Pyo</creatorcontrib><creatorcontrib>Han, Mi Sun</creatorcontrib><creatorcontrib>Kim, Woo Nyon</creatorcontrib><creatorcontrib>Park, Sang Do</creatorcontrib><title>Liquid nucleating additives for improving thermal insulating properties and mechanical strength of polyisocyanurate foams</title><title>Journal of materials science</title><addtitle>J Mater Sci</addtitle><description>The effects of liquid-type nucleating silane additives on the cell structure, mechanical strength, and thermal insulating properties of the polyisocyanurate (PIR) foams have been studied. The PIR foams synthesized with hexamethyldisilazane (HMDS) as a silane additive showed the smaller average cell size and lower thermal conductivity than those of the PIR foams prepared with the hexamethyldisiloxane, dimethoxydimethylsilane, and hexadecyltrimethoxysilane. When HMDS was added, average cell size of the PIR foam was becoming smaller due to lower surface tension of the polyol solution, thereby the nucleation rate and number of bubbles produced were increased and then the cell size becomes smaller. The additives likely act as nucleating agents during the formation of PIR foams. The smaller cell size appears to be one of the major reasons for the improvement of thermal insulation properties and mechanical properties of the PIR foams. From the results of cell size, thermal conductivity, and mechanical strength of the PIR foams, it is suggested that the HMDS may be the efficient liquid-type additive for the reduction of cell size and improvement of the thermal insulation property of the PIR foams.</description><subject>Additives</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry and Materials Science</subject><subject>Classical Mechanics</subject><subject>Crystallography and Scattering Methods</subject><subject>Electric properties</subject><subject>Foams</subject><subject>Heat conductivity</subject><subject>Heat transfer</subject><subject>Hexamethyldisiloxane</subject><subject>Materials Science</subject><subject>Mechanical properties</subject><subject>Nucleation</subject><subject>Polyisocyanurates</subject><subject>Polymer Sciences</subject><subject>Polyols</subject><subject>Reagents</subject><subject>Silane</subject><subject>Silanes</subject><subject>Solid Mechanics</subject><subject>Strength</subject><subject>Surface tension</subject><subject>Thermal conductivity</subject><subject>Thermal insulation</subject><issn>0022-2461</issn><issn>1573-4803</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp10ctq3DAUBmBRWug07QN0Z-iidOFUF0uWliE0bWCg0MtayPKRR8GWJpIcMm9fDS6EFIoWAun7Dwd-hN4TfEkw7j9ngiVnLSa47bjqWvIC7QjvWdtJzF6iHcaUtrQT5DV6k_Mdxpj3lOzQae_vVz82YbUzmOLD1Jhx9MU_QG5cTI1fjik-nN_LAdJi5saHvM4brV9HSMVXa8LYLGAPJnhbUS4JwlQOTXTNMc4nn6M9mbAmU6DONUt-i145M2d49_e-QL9vvvy6_tbuv3-9vb7at7aTfWmZVbJ3BBsD2PYjd2Sgo-TKEUJACUUZGwbVD-BENXJkvcTCDrJzCotBWXaBPm5z67L3K-SiF58tzLMJENespVCSdUrQKj_8I-_imkJdTlPKlRBEclHV5aYmM4P2wcWSjK1nhMXbGMD5-n7FBO84p-oc-PQsUE2BxzKZNWd9-_PHc0s2a1PMOYHTx-QXk06aYH0uWm9F61q0PhetSc3QLZOrDROkp7X_H_oDYe6s1g</recordid><startdate>20101001</startdate><enddate>20101001</enddate><creator>Kang, Min Jung</creator><creator>Kim, Youn Hee</creator><creator>Park, Gun Pyo</creator><creator>Han, Mi Sun</creator><creator>Kim, Woo Nyon</creator><creator>Park, Sang Do</creator><general>Springer US</general><general>Springer</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>ISR</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>L6V</scope><scope>M7S</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20101001</creationdate><title>Liquid nucleating additives for improving thermal insulating properties and mechanical strength of polyisocyanurate foams</title><author>Kang, Min Jung ; Kim, Youn Hee ; Park, Gun Pyo ; Han, Mi Sun ; Kim, Woo Nyon ; Park, Sang Do</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c487t-3c987f10aae0c7d5f1b2d859f111e969233bb97bef60aa8d37806cb84f906b9c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Additives</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry and Materials Science</topic><topic>Classical Mechanics</topic><topic>Crystallography and Scattering Methods</topic><topic>Electric properties</topic><topic>Foams</topic><topic>Heat conductivity</topic><topic>Heat transfer</topic><topic>Hexamethyldisiloxane</topic><topic>Materials Science</topic><topic>Mechanical properties</topic><topic>Nucleation</topic><topic>Polyisocyanurates</topic><topic>Polymer Sciences</topic><topic>Polyols</topic><topic>Reagents</topic><topic>Silane</topic><topic>Silanes</topic><topic>Solid Mechanics</topic><topic>Strength</topic><topic>Surface tension</topic><topic>Thermal conductivity</topic><topic>Thermal insulation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kang, Min Jung</creatorcontrib><creatorcontrib>Kim, Youn Hee</creatorcontrib><creatorcontrib>Park, Gun Pyo</creatorcontrib><creatorcontrib>Han, Mi Sun</creatorcontrib><creatorcontrib>Kim, Woo Nyon</creatorcontrib><creatorcontrib>Park, Sang Do</creatorcontrib><collection>CrossRef</collection><collection>Gale In Context: Science</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Science Database</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of materials science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kang, Min Jung</au><au>Kim, Youn Hee</au><au>Park, Gun Pyo</au><au>Han, Mi Sun</au><au>Kim, Woo Nyon</au><au>Park, Sang Do</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Liquid nucleating additives for improving thermal insulating properties and mechanical strength of polyisocyanurate foams</atitle><jtitle>Journal of materials science</jtitle><stitle>J Mater Sci</stitle><date>2010-10-01</date><risdate>2010</risdate><volume>45</volume><issue>19</issue><spage>5412</spage><epage>5419</epage><pages>5412-5419</pages><issn>0022-2461</issn><eissn>1573-4803</eissn><abstract>The effects of liquid-type nucleating silane additives on the cell structure, mechanical strength, and thermal insulating properties of the polyisocyanurate (PIR) foams have been studied. The PIR foams synthesized with hexamethyldisilazane (HMDS) as a silane additive showed the smaller average cell size and lower thermal conductivity than those of the PIR foams prepared with the hexamethyldisiloxane, dimethoxydimethylsilane, and hexadecyltrimethoxysilane. When HMDS was added, average cell size of the PIR foam was becoming smaller due to lower surface tension of the polyol solution, thereby the nucleation rate and number of bubbles produced were increased and then the cell size becomes smaller. The additives likely act as nucleating agents during the formation of PIR foams. The smaller cell size appears to be one of the major reasons for the improvement of thermal insulation properties and mechanical properties of the PIR foams. From the results of cell size, thermal conductivity, and mechanical strength of the PIR foams, it is suggested that the HMDS may be the efficient liquid-type additive for the reduction of cell size and improvement of the thermal insulation property of the PIR foams.</abstract><cop>Boston</cop><pub>Springer US</pub><doi>10.1007/s10853-010-4594-1</doi><tpages>8</tpages></addata></record> |
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| subjects | Additives Characterization and Evaluation of Materials Chemistry and Materials Science Classical Mechanics Crystallography and Scattering Methods Electric properties Foams Heat conductivity Heat transfer Hexamethyldisiloxane Materials Science Mechanical properties Nucleation Polyisocyanurates Polymer Sciences Polyols Reagents Silane Silanes Solid Mechanics Strength Surface tension Thermal conductivity Thermal insulation |
| title | Liquid nucleating additives for improving thermal insulating properties and mechanical strength of polyisocyanurate foams |
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