Preparation of hollow silica/PTFE fiber membrane with excellent thermal insulation performance by electrospinning - Details

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Abstract：

Flexible　thermal　insulation　membrane　plays　a　key　role　in　outdoor　wear　of　human　body　and　thermal　management　of　electronic　products.　This　study　used　electrospinning　to　prepare　thermal　insulation　hollow　silica/polytetrafluoroethylene　(HSi/PTFE)　fiber　membranes.　HSi　were　prepared　using　tetraethylorthosilicate　as　the　silicon　source　and　hydrothermal　carbon　spheres　as　templates.　A　spinning　solution　of　PTFE　containing　the　HSi　was　used　to　prepare　fiber　membranes.　The　heat　transfer　resistance　of　the　fiber　is　improved　by　embedding　HSi　into　the　PTFE　fiber,　resulting　to　improved　heat　insulation　capability　of　the　fiber　membrane.　The　influence　of　HSi　content　on　the　thermal　insulation　performance　of　PTFE　fiber　membrane　was　studied.　When　the　HSi　content　was　5　%,　the　fiber　membrane　showed　the　lowest　thermal　conductivity　(0.0197　W/(m·K)),　which　was　not　only　lower　than　most　fiber　thermal　insulation　materials,　but　also　had　excellent　tensile　properties　(tensile　deformation　capacity　of　168　%),　which　was　convenient　for　practical　application.　In　addition,　this　kind　of　fiber　membrane　also　has　high　hydrophobicity　(water　contact　angle　of　147°),　effectively　reducing　the　influence　of　moisture　on　thermal　insulation　performance.　This　work　presents　innovative　prospects　for　the　future　advancement　of　thermal　insulation　materials.　©　2024　Elsevier　Ltd

Keyword：

Electrospinning Fiber membrane Hollow silica Polytetrafluoroethylene Thermal insulation

Community：

[ 1 ] [Wang G.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China
[ 2 ] [Wang L.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China
[ 3 ] [Wang L.]Qingyuan Innovation Laboratory, Quanzhou, 362801, China
[ 4 ] [You J.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China
[ 5 ] [Yang Y.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China
[ 6 ] [Yang Y.]Qingyuan Innovation Laboratory, Quanzhou, 362801, China
[ 7 ] [Wang Y.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China
[ 8 ] [Wang W.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China
[ 9 ] [Liu L.]Qingyuan Innovation Laboratory, Quanzhou, 362801, China
[ 10 ] [Huang J.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China
[ 11 ] [Huang J.]Qingyuan Innovation Laboratory, Quanzhou, 362801, China
[ 12 ] [Li Y.]Qingyuan Innovation Laboratory, Quanzhou, 362801, China
[ 13 ] [Yu W.]Qingyuan Innovation Laboratory, Quanzhou, 362801, China
[ 14 ] [Chen H.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China
[ 15 ] [Chen H.]Qingyuan Innovation Laboratory, Quanzhou, 362801, China
[ 16 ] [Lai Y.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China
[ 17 ] [Lai Y.]Qingyuan Innovation Laboratory, Quanzhou, 362801, China
[ 18 ] [Cai W.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China
[ 19 ] [Cai W.]Qingyuan Innovation Laboratory, Quanzhou, 362801, China

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Source ：

Applied Thermal Engineering

ISSN： 1359-4311

Year： 2024

Volume： 255

6 . 1 0 0

JCR@2023

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ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 3

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