Aramid ntaub: nta, zog, kev saib xyuas

Ntawm ntau yam ntawm ntaub so ntswg tshwm sim textiles, uas yog npaj los tsim tshwj xeeb costumes. Feem ntau cov feem ntau, qhov no cov ntaub ntawv uas yog siv los mus tiv thaiv ib tug neeg, tsis yog nyob rau hauv qhov kev kawm ntawm tej chaw ua hauj lwm, tab sis kuj nyob rau hauv huab lub sijhawm. Muaj extraordinary zog aramid ntaub.

Yuav ua li cas yog nws?

Rau manufacturing xws li ib tug cov ntaub ntawv uas yog siv ib tug aramid fiber. Tej cov ntaub so ntswg yog thoob plaws. Nws yog ib tug polymer khoom siv raws li ib tug txhawb kev tivthaiv nyob rau hauv cov khaub ncaws siv thiab ua.

Nyob rau hauv lwm yam lus, overalls, vests, nyiam thiab lwm yam accessories - ib yam khoom ua los ntawm aramid ntaub. Lawv yog cov tau tiv thaiv los ntawm cov mos txwv thiab tua hluav taws. Cov khoom uas yog tsis tau tsuas yog cov tub rog thiab kuaj pilots, tab sis kuj tua hluav taws steelworkers thiab lwm yam cov neeg sawv cev ntawm lub neej-hem hauj lwm.

Ib me ntsis keeb kwm

Aramid fiber rau thawj lub sij hawm yog tsim los ntawm DuPont chemist American lub tuam txhab nyob rau hauv 1964. Chiv, cov khoom tau lub npe hu ua Kevlar. Tam sim no nws yog ib tug ntawm cov uas lub hom. Zoo ib yam li thaj chaw ntawm cov ntaub ntawv uas twb manufactured nyob rau hauv lub USSR. Nws lub npe SVM - ultra-high khoom. Tom qab ib tug thaum muaj ib yam khoom Twaron.

Txij li thaum xyoo 1970, Kevlar pib raug manufactured nyob rau hauv ib tug muaj scale.

Qhov twg fibers yog siv

Aramid ntaub ntawm Lavxias teb sab-ua ntau. Niaj hnub no lawv yog siv nyob rau hauv ntau qhov chaw. Kevlar yog Ameslikas thov:

1. Nyob rau hauv lub chaw ua khoom ntawm log tsheb.
2. Fiber yog muaj nyob rau hauv lub heavy-duty ropes thiab slings.
3. Cov ntaub ntawv uas twb siv raws li ib feem ntawm puas lug rau qhov khoos kas aerospace thiab aircraft lag luam, nyob rau hauv kev tsim kho ntawm yachts thiab ceev ceev tsheb, check khoom, nrog siab lag, thiab lwm yam high-ceev flywheel.
4. Nyob rau lub hauv paus ntawm aramid ntaub tau tsim los ntawm cov mos txwv-pov thawj vests thiab nyiam.
5. Fibers no kuj siv rau cov kev ua si cov khoom, khoom vaj khoom tsev, modeling, thiab seev suab paj nruas.

cov ntaub ntawv uas cov khoom

Aramid ntaub muaj cim zog. Molecules ntawm cov ntaub ntawv uas yog ntev chains. Nws feem ntau amide bonds yog sib raug zoo nyob rau tib lub sij hawm uas muaj ob peb uas muaj ntxhiab rings. Qhov no yog lub ntsiab kom zoo dua ntawm aramid ntaub. Vim hais tias tej tebchaw muaj ib tug txaus loj dissociation zog. Wherein lub uas muaj ntxhiab rings kom siab thermostability molecules.

Ntawm cov thaj chaw ntawm no cov ntaub ntawv uas yog muab:

1. High zog. Aramid ntaub muaj peev xwm sawv ntawm tiv mus txog 600 kg ib 1 hli ^2. Lub zog index ntawm cov ntaub ntawv uas yog siab tshaj uas ntawm hlau.
2. High kub kuj. Aramid ntaub uas nws zog yog nws, tsis yaj. Degradation ntawm lub fibers pib thaum txog 500 ° C. Khoom peev xwm ntawm tiv kev sib cuag nrog ib tug qhib nplaim taws rau 50 vib nas this. Nyob rau hauv cov ntaub ntawv no, cov ntaub tsis smolder thiab uas tsis yog-flammable. Txawm li cas los, nws tej yam zog nyob rau hauv xws li ib tug ho txo.
3. Tsis tshua muaj ceev. Aramid ntaub yog heev lub teeb, uas ua rau nws tsuas indispensable nyob rau hauv qhov siv thiab ua kev tiv thaiv cov khaub ncaws.
4. Tsis tshua muaj nqi. Feem ntau cov feem ntau, qhov muag yuav pom nyob rau hauv lub aramid fiber. Tus nqi ntawm ib tus qauv bobbin ntawm xov yog hais txog 20 dollars. Length - tsis tsawg tshaj li 3 km.

nta ntaub

Aramid ntaub muaj ib tug ntau dua Performance index ntawm elasticity, tsis zoo li cov ntaub ntawv ntawm cov iav thiab cov pa roj carbon fibers. Tsim ib tug web tej zaum yuav siv ib tug pa weaving khoom. Nyob rau hauv cov ntaub ntawv no interlacing fibers tej zaum yuav muaj. Nyob rau hauv tas li ntawd, lub tiav lawm ntaub, Yog hais tias qhov kev kawm, muaj peev xwm yuav pleev xim rau nyob rau hauv tej yam xim.

Aramid ntaub yog tsis ntuag thiab suab tsis hlawv. Cov ntaub ntawv uas yuav mas hluav taws, kub, roj thiab tshuaj kuab tshuaj. Nyob rau hauv load, lub aramid fiber yog tsis deformed. Txawm li cas los, lawv cov torsional zog yog txo.

Raws li rau tus nqi ntawm cov ntaub ntawm aramid fibers, nws yog hais txog $ 30 rau ib 1 m ^2.

Cov cheeb tsam ntawm daim ntawv thov ntawm cov ntaub so ntswg

Aramid ntaub yog siv niaj hnub no rau zus tau tej cov:

1. Kev Nyab Xeeb cov khoom thiab khaub ncaws rau metallurgists, welders thiab firemen. Vim nws cov cim zog, ntaub daim tawv nqaij yuav tiv thaiv neeg ua hauj lwm los ntawm lub siab heev kub ntawm molten hlau uas nkag mus rau, txim taws, thiab qhib nplaim taws.
2. Txhais tau tias ntawm kev tiv thaiv thiab khaub ncaws rau cov neeg ua haujlwm ntawm muaj ntau txoj cai tub ceev xwm cov koom haum thiab cov tub rog.
3. Vzryvoukryvatelnyh tents thiab lwm yam khoom.

ce nqi ntawm xws cov ntaub so ntswg nyob rau hauv lub tsim thiab cov ntaub ntawv hom. Tus nqi ntawm cov uas pheej yig tshaj yog $ 250. Txawm li cas los, kev tshawb fawb tau qhia tias qhov zoo tshaj plaws tiv thaiv tib neeg ce, sib txuas khaubncaws sab nraud povtseg ntawm yas thiab aramid ntaub.

Yuav ua li cas yuav tu ib daim ntaub

Cov khoom ua los ntawm aramid ntaub yuav muab ntxhua ua yog tias tsim nyog. Xws li ib tug cov ntaub ntawv uas tsis shrink. Txawm li cas los, heev heev cov kev tshawb fawb pom tau hais tias raws li ib tug tshwm sim ntawm rov ntxuav, ncaj nphav raug mus rau lub hnub thiab UV rays thuam cov yooj yim zog ntawm cov ntaub so ntswg, nws pib kom poob nws lub zog.

Tsis pom zoo rau tshem tawm tsuas los ntawm qhov chaw ntawm no cov ntaub ntawv uas los ntawm bleaches thiab txhais tau tias npaj rau tshuaj lom neeg tu. Lawv tsis tau lub dag lub zog ntawm aramid ntaub. Tej tsis muaj stripped khoom, uas muaj ib tug waterproof txheej. Nyob rau hauv lwm yam mob, ntxuav koj Kevlar sawv nrog huab ceev faj.