Lub Teeb Nyhav Woven Fabric yog dab tsi?
Thaum nws los txog rau kev tsim khoom nrog tshwj xeeb nqaim fabrics, muaj ntau txoj kev xaiv los ntawm. Txawm hais tias koj tab tom nrhiav rau daim kab xev, elastic, lossis hnyav - lub luag haujlwm webbing, nws yog ib qho tseem ceeb los xaiv cov khoom tsim nyog rau txoj haujlwm.
UHMWPE thiab Kevlar yog ob qho ntawm kev lag luam feem ntau - siv fibers; txawm lawv tsis sib pauv. Hauv qab no koj yuav pom cov lus qhia txog qhov sib txawv ntawm ob cov ntaub ntawv, yog li koj tuaj yeem xaiv qhov tsim nyog rau txoj haujlwm.
UHMWPE yog dab tsi?
Ultra-siab molecular hnyav polyethylene (UHMWPE) fiber ntau yog gel- cov khoom siv spun ua los ntawm cov saw ntev heev ntawm polyethylene. UHMWPE yog tsim los ntawm ntau lub npe- qhov tseem ceeb tshaj plaws yog Spectra thiab Dyneema- thiab muaj zog thiab ruaj khov; ua rau nws zoo tagnrho rau ntau daim ntawv thov.
Kev siv ntau rau UHMWPE
UHMWPE yog qhov muaj ntau yam thiab yog li siv hauv ntau qhov kev lag luam. Qee qhov kev siv ntau tshaj plaws rau UHMWPE suav nrog:
- Cov khoom siv tub rog thiab ballistic, nrog rau lub cev armor thiab plating
- Kev ua si lom zem xws li caij skiing, caij nkoj, thiab nuv ntses
- Tseem ceeb infrastructure
- Ropes thiab cordage
- Mineral processing thiab cov khoom siv mining
- Kev tsim khoom
Kevlar yog dab tsi?
Kevlar yog ib qho hluavtaws fiber ntau uas ua los ntawm ntau qhov sib cuam tshuam - cov saw hlau txuas uas tom qab ntawd hla - txuas nrog sib txuas nrog hydrogen. Qhov ntau ntawm cov ntawv cog lus no ua haujlwm ntxiv dag zog rau cov khoom siv thiab tsim kom muaj kev ruaj khov, ntau yam fiber ntau nrog ntau yam kev siv.
Common Uses Kevlar
Kevlar yog qhov tsim nyog rau ntau daim ntawv thov hauv ntau qhov kev lag luam sib txawv, suav nrog:
- Fiber optics
- Kev tiv thaiv khaub ncaws thiab khoom siv
- Ballistics thiab tiv thaiv
- Automotive siv thiab hoses
Kevlar cov txheej txheem tsim khoom ua rau nws muaj zog heev thiab zoo tagnrho rau cov haujlwm hnyav -. Ntxiv rau, nws elasticity thiab yooj ua rau webbed Kevlar qhov zoo tshaj plaws fiber ntau xaiv rau cov khoom hnav.
UHMWPE vs Kevlar
Thaum UHMWPE thiab Kevlar yog ob qho tib si tseem ceeb rau lawv lub zog thiab kev ua tau zoo tag nrho, ob cov ntaub ntawv qhia qee qhov sib txawv, thiab paub tias txhua qhov sib txawv ntawm fiber ntau tuaj yeem pab koj xaiv qhov zoo rau txoj haujlwm. Hauv qab no, koj yuav pom qhov sib txawv ntawm qhov sib txawv ntawm UHMWPE thiab Kevlar yog li koj tuaj yeem xaiv qhov tsim nyog los siv muab koj daim ntawv thov xav tau.
Zuag qhia tag nrho muaj zog
Vim lawv txoj kev sib koom ua ke thiab kev tsim kho fiber ntau, Kevlar thiab UHMWPE muaj zog heev. Hais txog cov lej, Kevlar feem ntau suav hais tias yog li ntawm xya lub sijhawm muaj zog dua li cov hlau, thaum UHMWPE ntsuas nyob rau ntawm kaum tsib zaug muaj zog dua hlau; khwv tau nws lub npe ntawm lub ntiaj teb muaj zog fiber ntau.
Zog Absorption
Ob leeg UHMWPE thiab Kevlar muaj lub zog zoo kawg thiab yog li tuaj yeem tiv taus ntau dhau ntawm kev quab yuam. UHMWPE ib leeg tau pom tias tiv thaiv nws cov neeg hnav tiv thaiv kev phom sij xws li IEDs thiab phom phom. Txawm li cas los xij, kev sim ballistic tau ua pov thawj tias Kevlar yog thawj zaug thaum nws los txog rau tag nrho lub zog nqus.
Resistance rau Abrasion
Txawm hais tias ob qho tib si cov ntaub ntawv muaj lub zog zoo sib xws thiab lub zog nqus, qhov sib txawv ntawm ob qho kev tshaj tawm hauv lawv cov kev tiv thaiv rau kev puas tsuaj. Thaum piv sab -los ntawm- sab, UHMWPE yog qhov sib txawv softer thiab smoother dua Kevlar. Qhov sib txawv ntawm kev ntxhib los mos ua rau UHMWPE tiv taus ntau dua rau kev txiav thiab tawg, ua rau nws zoo tagnrho rau kev siv hauv kev lag luam khoom noj.
Durability
Nyob rau hauv cov nqe lus ntawm tag nrho durability, ob qho tib si UHMWPE thiab Kevlar nyob qib siab tshaj lwm cov fibers muaj. Txawm li cas los xij, UHMWPE fibers zoo li Spectra thiab Dyneema tuaj yeem tiv taus tsib zaug siab dua Kevlar-txawm tias tsuas yog siv ib nrab ntawm cov khoom siv hluavtaws xwb. Qhov kev tiv thaiv ntxiv no muab UHMWPE ntug thaum tiv thaiv cov kab nrib pleb lossis kua muag.
Thaum tshav kub kub Resistance thiab conductance
Thaum nws los txog rau kev xaiv qhov hnyav - lub luag haujlwm webbing uas yuav tsum tau hnav thaum sov sov, UHMWPE yuav ua rau kev hnav zoo dua thiab txias dua. Hloov pauv, Kevlar yog qhov kev xaiv zoo dua rau qhov txias txias vim nws muaj peev xwm ua tau zoo rwb thaiv tsev.
Moisture Resistance
UHMWPE yog cov khoom siv dej tsis zoo uas yuav tsis hnyav los ntawm kev nqus dej. Qhov kev tiv thaiv rau cov dej noo no ua rau UHMWPE zoo tagnrho rau siv hauv cov av ntub lossis ntub dej, thiab txawm tias tsim cov tsev pheeb suab ntaub thiab hnab ev khoom. Ntawm qhov tod tes, Kevlar nyiam nqus mus txog 3.5% ntawm nws tus kheej qhov hnyav hauv dej, yog li txo nws cov txiaj ntsig hauv cov dej ntub lossis ntub dej.
Ultraviolet Lub teeb Resistance
Ultraviolet lub teeb tsis kam yog qhov tseem ceeb rau kev ua neej ntev ntawm cov khoom hnyav- fibers uas siv sij hawm ntau hauv lub hnub. Tom qab ob hnub tag nrho ntawm UV raug, Kevlar yuav poob mus txog 25% ntawm nws cov khoom siv zog, thaum UHMWPE poob mus txog 5%; ua rau tom kawg yog qhov kev xaiv zoo dua rau cov khoom siv uas yuav siv rau sab nraum zoov.
Qhov hnyav thiab ntom
Qhov hnyav thiab qhov ntom ntawm txhua qhov fiber ntau ua rau nws ua haujlwm tau zoo hauv qee yam kev siv (xws li thaum siv los tsim cov tsoos tsho). Kevlar's fiber ntau hnyav ntawm 1,440 kg / m3, thaum UHMWPE's tawm mus rau 970 kg / m3. Qhov qis qis no ua rau UHMWPE cov fiber ntau tsawg; ua rau cov khoom sib zog kawg.
Wearability
Vim nws qhov hnyav hnyav thiab tag nrho lub zog, UHMWPE feem ntau yog qhov zoo dua thaum nws los txog rau kev hnav. Tsis tas li ntawd, cov ntaub breathable txhawb kom sov kom dhau mus rau qhov txias dua, hnav zoo dua. Txawm li cas los xij, Kevlar thaum kawg yuav yog qhov kev xaiv zoo dua nyob rau hauv qhov txias dua qhov kev rwb thaiv tsev yog qhov tseem ceeb.
Durability
Lub durability ntawm hnyav -cov haujlwm fiber ntau yog ib qho ntawm nws cov yam ntxwv tseem ceeb tshaj plaws. Kevlar muaj qhov ua tau zoo ntawm lub neej ntawm 12, txhais tau hais tias thaum nws hloov pauv, nws nyiam tawg thiab tsim kua muag tom qab siv ntev. Ntawm qhov tod tes, UHMWPE muaj lub neej hloov pauv ntawm 100, uas tso cai rau nws tswj nws lub zog thiab haum rau lub sijhawm ntev dua.
Txawm hais tias Kevlar thiab UHMWPE muaj qhov sib txawv, ob lub fibers yog ob qho tib si zoo nkauj thiab ruaj khov, ua rau lawv zoo tagnrho rau ntau yam kev siv hauv ntau qhov kev lag luam. Impact New Materials Specialty Narrow Fabrics muaj Kevlar thiab UHMWPE, yog li koj tuaj yeem sib piv txhua tus thiab xaiv cov fiber ntau uas haum rau koj cov kev xav tau. Mus ntsib Impact New Materials hnub no kom pom txhua yam uas tus thawj coj ntawm cov khoom hnyav -lub luag haujlwm webbing muaj.
Tsis muaj
