Aramid daim ntaub, uas yog Kevlar daim ntaub, lub plab hlaub fiber ntau, cov ntaub npuag ntxhiab, yog ib hom ntaub ntawm rwb thaiv tsev thiab rwb thaiv tsev.
Lub ntsiab ntau yam yog raws li nram no
1. Aramid fiber ntau rov npuag, feem ntau yog ua los ntawm aramid 1414 filament, uas yog ua los ntawm cov qauv sib luag
los yog thaum muaj xwm txheej monopilaments. Cov hlab aramid siv nyob rau hauv cov khoom ntawm roving muaj ib monofilament
qhov nruab nrab ntawm 5 mus rau 15 μm. Tus naj npawb ntawm qhov hnyav yog los ntawm 100 txog 8000 (tex). Qhov rov tau
ncaj qha siv qee cov khoom sib sau ua ke, xws li cov ntawv nyeem tshwj xeeb, daim ntawv npaj, cov yeeb nkab
winding, profile pultrusion, thiab lwm yam. Cov xov paj uas tsis muaj twistiness yuav woven rau hauv tsis muaj chim siab vim nws niaj hnub
nro. Mis thiab cov khoom siv tshwj xeeb aramid siv rau hauv kev lag luam tshwj xeeb xws li aerospace, defense, thiab
ua tub rog.
Feem ntau qhov hnyav hnyav aramid daim ntaub ntaub qhwv ntaub, ib qho ntawm cov ntaub xuas txawb tsis zoo; aramid tsis-woven ntaub, namely
UD ntaub ntim txuam tsis zoo; aramid unidirectional ntaub, siv rau siab zog nyob rau hauv ib qho kev coj ntawm 0 degree los yog
90 degree latitude Qee zaus, xws li kev kho vaj tse, seismic qhov cuab lub zog, lub cuab lub zog,
pab kho tus choj, thiab lwm yam .; hniav aramid ntaub kuj tseem tuaj yeem ua rau cov ntaub zais plaub ntxhiab thiab xim
Aramid ntaub.
2, aramid non-woven npuag, lev, daim phiaj aramid, siv rau rwb thaiv tsev
3, Aramid fiber ntau cov ntaub so ntswg, cov ntaub qhwv ntaub, cov ntaub qhwv npog, nrog rau aramid 1313 lossis ib qho me me ntawm
1414 staple fiber
(1) Aramid fiber ntau cov ntaub qhwv paj yeeb nkab feem ntau yog hais txog ntau cov ntaub ntoo uas muaj khoob nrog aramid 1313 lossis ib lub
me me ntawm 1414 staple fiber yarn. Feem ntau yog siv hluav taws kub thiab lwm yam. Cov khoom ntawm
xaj yog txiav txim siab los ntawm cov khoom siv fais fab, khov thiab phom nyhav, qauv kev lag luam thiab kev ntxhib los mos. Lub warp thiab
Weft density yog txiav txim siab los ntawm cov qauv ntaub ntawv thiab kev ntxhib los mos. Cov warp thiab ntuag ceev ntxiv nrog rau cov xov paj
qauv txiav txim seb lub zog ntawm cov ntaub, xws li hnyav, tuab thiab tawg zog.
Nws muaj tsib qho qauv ntaub ntawv: plain, twill, satin, tav thiab lev.
(2) Aramid twisted webbing muab faib rau txoj hlua khi siv sab nrig (sab siv ntawm sab nraud) thiab ib txoj hlua siv tsis-khuam
(txoj kab siv burr). Lub ntsiab fais fab yog lub sab nrauv peb. Nws yog siv los tsim hluav taws xob, dielectric-hluav taws xob zoo
khoom seem thiab tsheb hoses.
(3) Aramid qaum ntaub npuag, uas yog ib qho sib tua ntawm cov ntaub npog ziab, qhov tshwj xeeb yog siab
lub zog nyob rau hauv warp yarn 0 degree los yog weft yarn 90 degree kev taw qhia. Lub warp unidirectional npuag yog ib tug
plaub-striped los yog ntev ntev satin ntaub woven los ntawm coarse warp yarns thiab zoo weft yarns rau aircraft log tsheb thiab
lub tsheb ceev tsheb log tsheb.
(4) Daim ntaub qhwv peb sab Qhov ntev ntawm daim ntaub ntawv yog ib daim ntaub txav ntawm sab nraud, thiab nws cov yam ntxwv
muaj hloov zuj zus los ntawm ib sab ob-seem rau peb sab, kom cov khoom sib xyaw
nrog rau qhov cuab lub zog muaj kev ruaj ntseg zoo thiab profiling, thiab zoo heev txhim kho lub composite. Interlaminar
shear lub zog thiab kev puas tsuaj rau ntawm cov khoom. Nws tau raug tsim los ntawm kev xav tau tshwj xeeb ntawm
aerospace, aviation, riam phom, nkoj thiab lwm lub tuam tsev, thiab nws daim ntawv thov tau txuas ntxiv rau
tsheb, cov khoom siv ua kis las, cov khoom siv kho mob thiab lwm lub tuam tsev. Muaj tsib lub ntsiab lus:
woven cov ntawv uas muaj peb sab, cov ntaub npog peb sab, qhov nruab nrab thiab tsis-orthogonal
nonwoven cov ntawv uas muaj peb sab, cov ntaub duab uas muaj peb sab, thiab lwm cov ntaub ntawv ntawm peb sab
fabrics. Qhov zoo ntawm cov ntaub npuag peb muaj ib qho thaiv zoo, ib qho zoo li sab nraud, ib lub tubular zoo, a
hollow truncated lub khob hliav qab, thiab ib qho tsis paub meej qhov chaw seem txheej txheem.
(5) Cov duab ntawm cov ntaub qhwv ntsej muag zoo ib yam li cov khoom ntawm tsab xov xwm kom tau txais, thiab yuav tsum yog
woven ntawm ib saab neeg nto moo. Cov ntaub ntawv ntawm cov yeeb yam zoo nkauj yog: round round, cones, caps, dumbbell-
zoo li cov ntaub, thiab lwm yam, thiab tseem tuaj yeem ua rau daim ntawv asymmetrical xws li thawv thiab hulls.
(6) Grooved core npuag Cov tub ntxhais siv npuag yog ib hom ntaub ntawv uas muaj ob daim duab sib txuas ua ke los ntawm longitudinal
vertical strips, thiab cov duab thooj ntawm daim duab yuav yog voj voos plaub ceg los yog sab qes.
(7) Cov ntaub npog qhov muag kuj tseem raug xa mus ua ib rab riam los yog ib qho txhaws, uas txawv ntawm
cev nqaij daim tawv thiab kev xav ntawm lub ntsiab lus li niaj zaus. Cov khaub ncaws tshaj plaws yog stackbonded npuag
cov iav uas muaj overlapped nrog ib txheej ntawm weft yarns, thiab warp yarns thiab cov nyhuv weft yog woven
ua ke rau hauv ib daim ntaub ntawm stitching.
3, ua ke daim ntaub aramid
Ntawd yog, ib qho zas ntaub zas ua ke uas muaj kev xav, aramid rov npuag thiab aramid roving yog chav
hauv ib qho kev txiav txim.
Aramid daim ntaub ntiag tug
1. Cov khoom siv zoo ntawm cov tshuab Meta-aramid yog ib qho yooj yim polymer nrog siab tawg zog tshaj qhov dog dig
polyester, paj rwb, nylon, etc. Nws muaj loj elongation, muag tes thiab zoo spinnability, thiab yuav ua tau
ua rau txawv denier thiab ntev. Cov luv fibers thiab filaments yog woven rau hauv fabrics thiab non-
woven fabrics nyob rau hauv sib txawv textile machinery. Tom qab qhov kawg, lawv ua tau raws li cov cai ntawm kev hnav khaub ncaws
nyob rau txawv teb.
2, nplaim nplaum zoo, hluav taws kub hnyav meta-aramid muaj limiting Performance index (LOI) ntau dua 28,
yog li ntawd nws tsis txuas ntxiv mus hlawv thaum nws tawm lub nplaim taws. Cov nplaim hluav taws kub ntawm cov meta-aramid yog
txiav txim los ntawm nws cov qauv tshuaj. Qhov kev txiav txim siab yog li ntawd ib qho hluav taws xob ruaj khov fiber ntau uas
tsis txo lossis poob nplaim hluav taws xob vim yog siv lub sijhawm thiab cov dej ntxuav. Lub meta-
Aramid tau zoo thermal stability thiab yuav siv tau tsis tu ncua tom 300 ° C. Nws tuaj yeem tswj kom muaj zog
txawm tias kub npaum li cas ntawm 300 ° C. Lub meta-aramid muaj qhov kub siab thiab nws ua kom sov
tsis qhuav lossis yaj thaum kub kub, thiab carbonization pib thaum kub kub dua
tshaj 580 ° C.
3, ruaj khov tshuaj Meta-aramid muaj tshuaj tiv thaiv zoo heev rau feem ntau cov tshuaj muaj yees, ua tau
nrog ntau feem ntau cov concentration inorganic acids, thiab muaj zoo alkali tiv thaiv ntawm chav tsev kub.
4, hluav taws xob ua haujlwm meta-aramid muaj hluav taws xob ua haujlwm zoo heev. Piv txwv, nyob rau hauv lub sij hawm ntev
irradiation ntawm 1,2 × 10-2 w / in2 ultraviolet rays thiab 1.72 × 108 rads ntawm γ-rays, cov kev siv nyob tsis hloov pauv.
5, Durability Inter-aramid zoo heev tiv thaiv kev sib xyaw thiab tshuaj lom neeg ua haujlwm, tom qab 100 zaug ntawm kev ntxuav, tus
interfacial aramid cov ntaub ntawm lub cev tearing muaj peev xwm tseem ncav ntau tshaj li 85% ntawm thawj lub zog.
Khoom zoo
Kev kub taub hau, kev kub nyhiab, lub cev nyhav, lub zog siab, kev kub siab, kev ruaj khov, tsawg
shrinkage, puncture hauj, txiav ua hauj, hnav ua hauj, kub ua hauj, tshuaj lom neeg kuj, zoo
mechanical zog, dielectric thaj chaw zoo thiab zoo li ntawd.
