Aramid nanofiber and carbonyl iron powder composite aerogel as well as preparation method and application thereof
The invention provides a preparation method and application of an aramid nanofiber and carbonyl iron powder composite material. The preparation method comprises the following steps: dispersing aramid nanofiber and carbonyl iron powder in an ethanol solution according to a mass ratio of 1: (3-7), car...
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| creator | LIU ZHONGYUAN ZHAI KUN XIANG JIANYONG WANG BOCHONG MOU CONGPU ZHANG LEYI WEN FUSHENG XUE TIANYU |
| description | The invention provides a preparation method and application of an aramid nanofiber and carbonyl iron powder composite material. The preparation method comprises the following steps: dispersing aramid nanofiber and carbonyl iron powder in an ethanol solution according to a mass ratio of 1: (3-7), carrying out ultrasonic liquid phase stripping for 0.5-2 hours, and carrying out vacuum filtration to obtain aramid nanofiber and carbonyl iron powder composite hydrogel; the aramid nanofiber and carbonyl iron powder composite hydrogel is subjected to freeze drying under the vacuum condition, and the aramid nanofiber and carbonyl iron powder composite aerogel is obtained. When the thickness of the aramid nanofiber and carbonyl iron powder composite aerogel prepared by the method is only 1.6 mm, the effective absorption of electromagnetic waves reaches 11.2 GHz, and when the thickness of the aramid nanofiber and carbonyl iron powder composite aerogel is 2.4 mm, the maximum reflection loss of the aramid nanofiber and ca |
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The preparation method comprises the following steps: dispersing aramid nanofiber and carbonyl iron powder in an ethanol solution according to a mass ratio of 1: (3-7), carrying out ultrasonic liquid phase stripping for 0.5-2 hours, and carrying out vacuum filtration to obtain aramid nanofiber and carbonyl iron powder composite hydrogel; the aramid nanofiber and carbonyl iron powder composite hydrogel is subjected to freeze drying under the vacuum condition, and the aramid nanofiber and carbonyl iron powder composite aerogel is obtained. When the thickness of the aramid nanofiber and carbonyl iron powder composite aerogel prepared by the method is only 1.6 mm, the effective absorption of electromagnetic waves reaches 11.2 GHz, and when the thickness of the aramid nanofiber and carbonyl iron powder composite aerogel is 2.4 mm, the maximum reflection loss of the aramid nanofiber and ca</description><language>chi ; eng</language><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; GENERAL PROCESSES OF COMPOUNDING ; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PRINTED CIRCUITS ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS ; WORKING-UP</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230829&DB=EPODOC&CC=CN&NR=116655997A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230829&DB=EPODOC&CC=CN&NR=116655997A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LIU ZHONGYUAN</creatorcontrib><creatorcontrib>ZHAI KUN</creatorcontrib><creatorcontrib>XIANG JIANYONG</creatorcontrib><creatorcontrib>WANG BOCHONG</creatorcontrib><creatorcontrib>MOU CONGPU</creatorcontrib><creatorcontrib>ZHANG LEYI</creatorcontrib><creatorcontrib>WEN FUSHENG</creatorcontrib><creatorcontrib>XUE TIANYU</creatorcontrib><title>Aramid nanofiber and carbonyl iron powder composite aerogel as well as preparation method and application thereof</title><description>The invention provides a preparation method and application of an aramid nanofiber and carbonyl iron powder composite material. 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The preparation method comprises the following steps: dispersing aramid nanofiber and carbonyl iron powder in an ethanol solution according to a mass ratio of 1: (3-7), carrying out ultrasonic liquid phase stripping for 0.5-2 hours, and carrying out vacuum filtration to obtain aramid nanofiber and carbonyl iron powder composite hydrogel; the aramid nanofiber and carbonyl iron powder composite hydrogel is subjected to freeze drying under the vacuum condition, and the aramid nanofiber and carbonyl iron powder composite aerogel is obtained. When the thickness of the aramid nanofiber and carbonyl iron powder composite aerogel prepared by the method is only 1.6 mm, the effective absorption of electromagnetic waves reaches 11.2 GHz, and when the thickness of the aramid nanofiber and carbonyl iron powder composite aerogel is 2.4 mm, the maximum reflection loss of the aramid nanofiber and ca</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERAL PROCESSES OF COMPOUNDING MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PRINTED CIRCUITS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP |
| title | Aramid nanofiber and carbonyl iron powder composite aerogel as well as preparation method and application thereof |
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