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Developments in
Kevlar® fbre
By
Himanshu Gupta
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what it is about?
• About Kevlar® fber?
• Devlopments
•
Introduction o new fbers• Application area
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!hat is Kevlar® fber
• Kevlar® a Para amide fibre is trade name from DU
PONT, first commercialised in 1972.
• High Tensile Strength at Low eight
• Low !longation to "rea#
• High $od%l%s &Str%ct%ral 'igidit()
• High *hemical 'esistance
•
!+cellent ,imensional Stabilit(• High *%t 'esistance
• -lame 'esistant Self/!+ting%ishing
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Introduction to new fbers
"ew series o fbres
Kevlar ® AP #Advanced$erormance %
o &'( more stron)er*
Kevlar® XPo +educe bac,ace deormations by
appro-imately &'(*
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KEVLAR® ENGINEEREDELASTOME
o Hi)hly fbrillated. short #/*'0&mm% fbers
o 1ellow colour
o 2seul temperature ran)e #34// to 56'/7%
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Honeycomb core technolo)y
• 8omposites made with Kevlar®
• 9ainly used or aerospace andmarine application
• $rovides li)htwei)ht stren)th.
sti:ness. tou)hness. corrosionresistance
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In Aerospace
• Kevlar® helped Airbus; which isconcept o the worldincrease uel eciency*
• It is ound @oorin) to interior walls towin) @ap to en)ines
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In 9arine
• i)ht wei)ht providin) stren)th. sti:ness andtou)hness
• ersatile options or hulls. superstructures
•
and urniture bul,heads• Ideal or economies o uel andCor increased
payloads
Hi)h impact and ati)ue resistance
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iuid body armour
• 2se o shear stress @uid
Behaves li,e liuid in normal
condition but solidifes inmillisecond when stri,es*
Eilicon particles suspended inpolyethylene )lycol*
Fnclosed between di:erentKevlar® sheets
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Ligh !eigh "elme
• 9ade with Kevlar® $
• +eduction in &'( bac,3acedeormation
• Hi)her protection per wei)ht thane-istin) aramid3phenolic solutionsshell wei)ht reduced by 4/34'(
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ADVANCED VEHICLE ARMOR
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Advanced materials or the oil >)as industry
• ,%Pont technolog( has set new standards in
e+traction 0i0eline 0erformance e+treme weather
o0erations and wor#force 0rotection.
• Jhermoplastic umbilicals
• FIBF I"FE
• I""LAJIF EAFJ1
• +FI"L+8FD JHF+9L$AEJI8 $I$FE
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Automotive industry
• T(res
S%0erb 0%nct%re abrasion and tear resistance
• "elts• The high mod%l%s and abrasion resistance of Kevlar® (arn hel0 belts
retain their original sha0e and tension over the millions of revol%tions
the( go thro%gh over the lifes0an of a vehicle
• "ra#e 0ads
The enhanced thermal stabilit( and inherent abrasion resistance of
bra#e 0ads reinforced with Kevlar® 0%l0 hel0s allow them to last longand sto0 the vehicle safel( and %ietl(.
• as#ets• *hemical stabilit( and thermal stabilit( hel0 ma#e gas#ets reinforced
with Kevlar® 0%l0 strong and d%rable
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Lptical cables
• Improved covera)e o the optic fbre
• $rovide crush resistance and
cushion protection or the optic fbre*
• Ji)ht bu:ered fbre separated rom
the cable Mac,et to prevent stic,in)
• oad3bearin) capacity
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"ea Re#i#an Gl$ve#
• 9ade rom Kevlar ® A$
• 8ut resistance
•
i)ht wei)ht• Hi)h stren)th
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