Robust and Density Tunable Kevlar/Hexagonal Boron Nitride Microribbon Aerogels with Excellent Thermal, Mechanical, and Oil-Absorption Properties
With rapid advancements in aerospace and supersonic aircraft technology, there is a growing demand for multifunctional thermal protective materials. Aerogels, known for their low density and high porosity, have garnered significant attention in this regard. However, developing a lightweight multifun...
محفوظ في:
| المؤلف الرئيسي: | |
|---|---|
| مؤلفون آخرون: | , , , , , , , |
| منشور في: |
2024
|
| الموضوعات: | |
| الوسوم: |
إضافة وسم
لا توجد وسوم, كن أول من يضع وسما على هذه التسجيلة!
|
| _version_ | 1852026617070616576 |
|---|---|
| author | Hu Long (1415203) |
| author2 | Yaming Hu (19682036) Jiaxin Liu (833821) Wei Wang (17594) Guanglan Liao (1775932) Anthony Chun Yin Yuen (5937188) Guan-Heng Yeoh (5104709) Yuan Hu (275971) Tielin Shi (1415215) |
| author2_role | author author author author author author author author |
| author_facet | Hu Long (1415203) Yaming Hu (19682036) Jiaxin Liu (833821) Wei Wang (17594) Guanglan Liao (1775932) Anthony Chun Yin Yuen (5937188) Guan-Heng Yeoh (5104709) Yuan Hu (275971) Tielin Shi (1415215) |
| author_role | author |
| dc.creator.none.fl_str_mv | Hu Long (1415203) Yaming Hu (19682036) Jiaxin Liu (833821) Wei Wang (17594) Guanglan Liao (1775932) Anthony Chun Yin Yuen (5937188) Guan-Heng Yeoh (5104709) Yuan Hu (275971) Tielin Shi (1415215) |
| dc.date.none.fl_str_mv | 2024-09-16T19:18:17Z |
| dc.identifier.none.fl_str_mv | 10.1021/acsami.4c09506.s006 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/media/Robust_and_Density_Tunable_Kevlar_Hexagonal_Boron_Nitride_Microribbon_Aerogels_with_Excellent_Thermal_Mechanical_and_Oil-Absorption_Properties/27040826 |
| dc.rights.none.fl_str_mv | CC BY-NC 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Biophysics Genetics Molecular Biology Biotechnology Ecology Developmental Biology Inorganic Chemistry Space Science Environmental Sciences not elsewhere classified Chemical Sciences not elsewhere classified Physical Sciences not elsewhere classified ultrahigh bearing ratio tailored densities ranging supersonic aircraft technology resulting microribbon scaffold prevent volume shrinkage hexagonal boron nitride exhibits sufficient strength accelerate solvent displacement 566 ° c 100 mg cm lightweight multifunctional aerogel excellent sorption performance efficient method remains garnered significant attention combines exceptional thermal x </ sub create robust microribbons 0269 – 0 porous hybrid aerogels density tunable kevlar aerogel density excellent thermal hybrid aerogels assisted method significant potential significant challenge low density thermal stability thermal management thermal conductivities wide distribution various oils universal approach successfully fabricated saturated aerogels rapid advancements prepared kb neutron protection high porosity heat treatment growing demand environmental protection easily recovered absorption properties 2000 times 0450 w |
| dc.title.none.fl_str_mv | Robust and Density Tunable Kevlar/Hexagonal Boron Nitride Microribbon Aerogels with Excellent Thermal, Mechanical, and Oil-Absorption Properties |
| dc.type.none.fl_str_mv | Dataset Media info:eu-repo/semantics/publishedVersion dataset |
| description | With rapid advancements in aerospace and supersonic aircraft technology, there is a growing demand for multifunctional thermal protective materials. Aerogels, known for their low density and high porosity, have garnered significant attention in this regard. However, developing a lightweight multifunctional aerogel that combines exceptional thermal and mechanical properties through a straightforward and time-efficient method remains a significant challenge. Herein, a facile and universal approach is developed for the preparation of Kevlar/hexagonal boron nitride (h-BN) aerogels, in which a spin-assisted method is applied to create robust microribbons and further accelerate solvent displacement. The resulting microribbon scaffold, with its entangled nanofiber–nanosheet morphologies, exhibits sufficient strength to prevent volume shrinkage during drying, thereby allowing precise control over aerogel density. The porous hybrid aerogels, featuring controllable geometric characteristics and tailored densities ranging from 6.9 to 100 mg cm<sup>–3</sup>, can be successfully fabricated. These aerogels exhibit excellent thermal insulation properties, and the thermal conductivities of the as-prepared KB<sub>X</sub> aerogels have a wide distribution in the range of 0.0269–0.0450 W m<sup>–1</sup> k<sup>–1</sup>. The thermal stability of the hybrid aerogels is enhanced to 566 °C. Moreover, the resulting hybrid aerogels exhibit an ultrahigh bearing ratio, supporting more than 2000 times their own weight while maintaining stable structural integrity. These aerogels also demonstrate high compressive strength, hydrophobicity, and excellent sorption performance for various oils and solvents. Additionally, the oil-saturated aerogels can be easily recovered through heat treatment or combustion in air. The features endow hybrid Kevlar/h-BN aerogels with significant potential for applications in thermal management, environmental protection, and neutron protection. |
| eu_rights_str_mv | openAccess |
| id | Manara_ea4277d0918955352badfd96904d2a6f |
| identifier_str_mv | 10.1021/acsami.4c09506.s006 |
| network_acronym_str | Manara |
| network_name_str | ManaraRepo |
| oai_identifier_str | oai:figshare.com:article/27040826 |
| publishDate | 2024 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY-NC 4.0 |
| spelling | Robust and Density Tunable Kevlar/Hexagonal Boron Nitride Microribbon Aerogels with Excellent Thermal, Mechanical, and Oil-Absorption PropertiesHu Long (1415203)Yaming Hu (19682036)Jiaxin Liu (833821)Wei Wang (17594)Guanglan Liao (1775932)Anthony Chun Yin Yuen (5937188)Guan-Heng Yeoh (5104709)Yuan Hu (275971)Tielin Shi (1415215)BiophysicsGeneticsMolecular BiologyBiotechnologyEcologyDevelopmental BiologyInorganic ChemistrySpace ScienceEnvironmental Sciences not elsewhere classifiedChemical Sciences not elsewhere classifiedPhysical Sciences not elsewhere classifiedultrahigh bearing ratiotailored densities rangingsupersonic aircraft technologyresulting microribbon scaffoldprevent volume shrinkagehexagonal boron nitrideexhibits sufficient strengthaccelerate solvent displacement566 ° c100 mg cmlightweight multifunctional aerogelexcellent sorption performanceefficient method remainsgarnered significant attentioncombines exceptional thermalx </ subcreate robust microribbons0269 – 0porous hybrid aerogelsdensity tunable kevlaraerogel densityexcellent thermalhybrid aerogelsassisted methodsignificant potentialsignificant challengelow densitythermal stabilitythermal managementthermal conductivitieswide distributionvarious oilsuniversal approachsuccessfully fabricatedsaturated aerogelsrapid advancementsprepared kbneutron protectionhigh porosityheat treatmentgrowing demandenvironmental protectioneasily recoveredabsorption properties2000 times0450 wWith rapid advancements in aerospace and supersonic aircraft technology, there is a growing demand for multifunctional thermal protective materials. Aerogels, known for their low density and high porosity, have garnered significant attention in this regard. However, developing a lightweight multifunctional aerogel that combines exceptional thermal and mechanical properties through a straightforward and time-efficient method remains a significant challenge. Herein, a facile and universal approach is developed for the preparation of Kevlar/hexagonal boron nitride (h-BN) aerogels, in which a spin-assisted method is applied to create robust microribbons and further accelerate solvent displacement. The resulting microribbon scaffold, with its entangled nanofiber–nanosheet morphologies, exhibits sufficient strength to prevent volume shrinkage during drying, thereby allowing precise control over aerogel density. The porous hybrid aerogels, featuring controllable geometric characteristics and tailored densities ranging from 6.9 to 100 mg cm<sup>–3</sup>, can be successfully fabricated. These aerogels exhibit excellent thermal insulation properties, and the thermal conductivities of the as-prepared KB<sub>X</sub> aerogels have a wide distribution in the range of 0.0269–0.0450 W m<sup>–1</sup> k<sup>–1</sup>. The thermal stability of the hybrid aerogels is enhanced to 566 °C. Moreover, the resulting hybrid aerogels exhibit an ultrahigh bearing ratio, supporting more than 2000 times their own weight while maintaining stable structural integrity. These aerogels also demonstrate high compressive strength, hydrophobicity, and excellent sorption performance for various oils and solvents. Additionally, the oil-saturated aerogels can be easily recovered through heat treatment or combustion in air. The features endow hybrid Kevlar/h-BN aerogels with significant potential for applications in thermal management, environmental protection, and neutron protection.2024-09-16T19:18:17ZDatasetMediainfo:eu-repo/semantics/publishedVersiondataset10.1021/acsami.4c09506.s006https://figshare.com/articles/media/Robust_and_Density_Tunable_Kevlar_Hexagonal_Boron_Nitride_Microribbon_Aerogels_with_Excellent_Thermal_Mechanical_and_Oil-Absorption_Properties/27040826CC BY-NC 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/270408262024-09-16T19:18:17Z |
| spellingShingle | Robust and Density Tunable Kevlar/Hexagonal Boron Nitride Microribbon Aerogels with Excellent Thermal, Mechanical, and Oil-Absorption Properties Hu Long (1415203) Biophysics Genetics Molecular Biology Biotechnology Ecology Developmental Biology Inorganic Chemistry Space Science Environmental Sciences not elsewhere classified Chemical Sciences not elsewhere classified Physical Sciences not elsewhere classified ultrahigh bearing ratio tailored densities ranging supersonic aircraft technology resulting microribbon scaffold prevent volume shrinkage hexagonal boron nitride exhibits sufficient strength accelerate solvent displacement 566 ° c 100 mg cm lightweight multifunctional aerogel excellent sorption performance efficient method remains garnered significant attention combines exceptional thermal x </ sub create robust microribbons 0269 – 0 porous hybrid aerogels density tunable kevlar aerogel density excellent thermal hybrid aerogels assisted method significant potential significant challenge low density thermal stability thermal management thermal conductivities wide distribution various oils universal approach successfully fabricated saturated aerogels rapid advancements prepared kb neutron protection high porosity heat treatment growing demand environmental protection easily recovered absorption properties 2000 times 0450 w |
| status_str | publishedVersion |
| title | Robust and Density Tunable Kevlar/Hexagonal Boron Nitride Microribbon Aerogels with Excellent Thermal, Mechanical, and Oil-Absorption Properties |
| title_full | Robust and Density Tunable Kevlar/Hexagonal Boron Nitride Microribbon Aerogels with Excellent Thermal, Mechanical, and Oil-Absorption Properties |
| title_fullStr | Robust and Density Tunable Kevlar/Hexagonal Boron Nitride Microribbon Aerogels with Excellent Thermal, Mechanical, and Oil-Absorption Properties |
| title_full_unstemmed | Robust and Density Tunable Kevlar/Hexagonal Boron Nitride Microribbon Aerogels with Excellent Thermal, Mechanical, and Oil-Absorption Properties |
| title_short | Robust and Density Tunable Kevlar/Hexagonal Boron Nitride Microribbon Aerogels with Excellent Thermal, Mechanical, and Oil-Absorption Properties |
| title_sort | Robust and Density Tunable Kevlar/Hexagonal Boron Nitride Microribbon Aerogels with Excellent Thermal, Mechanical, and Oil-Absorption Properties |
| topic | Biophysics Genetics Molecular Biology Biotechnology Ecology Developmental Biology Inorganic Chemistry Space Science Environmental Sciences not elsewhere classified Chemical Sciences not elsewhere classified Physical Sciences not elsewhere classified ultrahigh bearing ratio tailored densities ranging supersonic aircraft technology resulting microribbon scaffold prevent volume shrinkage hexagonal boron nitride exhibits sufficient strength accelerate solvent displacement 566 ° c 100 mg cm lightweight multifunctional aerogel excellent sorption performance efficient method remains garnered significant attention combines exceptional thermal x </ sub create robust microribbons 0269 – 0 porous hybrid aerogels density tunable kevlar aerogel density excellent thermal hybrid aerogels assisted method significant potential significant challenge low density thermal stability thermal management thermal conductivities wide distribution various oils universal approach successfully fabricated saturated aerogels rapid advancements prepared kb neutron protection high porosity heat treatment growing demand environmental protection easily recovered absorption properties 2000 times 0450 w |