Qhov twg yog qhov zoo dua Kevlar lossis PE fiber ntau hauv cov khoom?
Ua ntej, muab qhov kev qhia luv luv rau aramid thiab PE.
1. Aramid fiber ntau cov khoom siv Aramid fiber, tseem hu ua aramid fiber (tshwj xeeb lub npe yog phthalamide), yug hauv xyoo 1960s. Nws yog ib hom tshiab ntawm high-tech hluavtaws fiber ntau nrog cov yam ntxwv ntawm qhov kub thiab txias tsis kam, acid thiab alkali tsis kam. , lub teeb yuag, lub zog siab, tau siv dav hauv cov khoom siv tiv thaiv mos txwv, kev tsim kho thiab cov khoom siv hluav taws xob thiab lwm yam kev lag luam.
Tab sis aramid kuj muaj ob qhov tsis zoo rau kev tuag:
1) Nws yuav degrade thaum raug ultraviolet rays; Nws yog ib qho yooj yim rau hydrolyze, txawm tias nws tau khaws cia rau hauv qhov chaw qhuav, nws yuav nqus dej noo hauv huab cua thiab maj mam hydrolyze.
Yog li ntawd, aramid mos txwv cov ntaub ntawv thiab lub cev armor yuav tsum tsis txhob siv rau ib tug ntev lub sij hawm nyob rau hauv muaj zog ultraviolet thiab ntub ib puag ncig, uas yuav txo tau zoo heev tiv thaiv kev ua tau zoo thiab kev pab lub neej. Tsis tas li ntawd, kev ruaj ntseg tsis zoo thiab lub neej luv luv ntawm aramid kuj txwv qhov kev thov ntxiv ntawm aramid hauv thaj tsam ntawm cov mos txwv.
Hwm zoo aramid kuj tseem kim dua PE, tej zaum 30 feem pua rau 50 feem pua ntau dua. Tam sim no, cov khoom siv phom phom siv aramid fiber ntau tau maj mam txo qis thiab pib hloov los ntawm PE cov khoom tsis zoo. Tshwj tsis yog tias nws nyob hauv ib puag ncig tshwj xeeb lossis muaj cov cai tshwj xeeb, xws li qhov kub thiab txias hauv Middle East, nws raug nquahu kom siv cov khoom siv PE mos mos.
PE hauv cov khoom siv fiber ntau saum toj no yog hais txog UHMW-PE, uas yog, ultra-siab molecular hnyav polyethylene. Nws yog ib qho kev ua tau zoo ntawm cov organic fiber ntau tsim nyob rau hauv thaum ntxov 1980s, thiab yog hu ua carbon fiber thiab aramid fiber nyob rau hauv lub ntiaj teb no niaj hnub no. Peb high-tech fibers. Cov hnab yas uas peb siv hauv peb lub neej txhua hnub yog cov khoom siv polyethylene, uas muaj kev ruaj ntseg ultra-siab thiab nyuaj rau degrade, ua rau muaj kuab paug ib puag ncig. Tab sis nws yog precisely vim hais tias ntawm no tus yam ntxwv uas nws ua ib tug zoo tagnrho khoom rau lub cev armor. Tsis tas li ntawd, nws kuj muaj cov yam ntxwv ntawm qhov kub thiab txias tsis kam, UV tsis kam thiab tsis muaj dej.
Nyob rau hauv cov nqe lus ntawm kev tiv thaiv cov mos txwv ceev ceev, cov mos txwv kev ua tau zoo ntawm UHMW-PE fiber ntau yog li ntawm 30 feem pua siab dua li ntawm aramid fiber ntau;
Hais txog kev tiv thaiv cov mos txwv kub ceev, lub peev xwm ntawm UHMW-PE fiber ntau yog 1.5 ~ 2 npaug ntawm aramid fiber ntau, yog li PE tam sim no tau lees paub tias yog cov khoom siv phom sij zoo tshaj plaws.
Txawm li cas los xij, UHMW-PE kuj muaj qee qhov tsis zoo: nws qhov kub thiab txias tsis kam yog tsawg dua li ntawm aramid fiber ntau. Kev siv kub ntawm UHMWPE cov khoom siv phom phom yuav tsum tau tswj tsis pub dhau 80 degree (kom ua tau raws li qhov kub thiab txias ntawm tib neeg lub cev thiab cov khoom siv - kub tsis kam 55 degree). Thaum qhov kub no dhau lawm, nws qhov kev ua tau zoo yuav poob sai, thiab nws yuav yaj thaum kub txog 150 degree lossis siab dua. Aramid bulletproof khoom tseem tuaj yeem tswj cov qauv kev ruaj ntseg thiab kev tiv thaiv zoo ntawm qhov kub ntawm 200 degree. Yog li ntawd, PE cov khoom tsis zoo yog tsis haum rau siv nyob rau hauv ib puag ncig kub.
Tsis tas li ntawd, PE tsis yog creep resistant li aramid, thiab cov cuab yeej siv PE yuav maj mam deform nyob rau hauv tas li lub siab. Yog li ntawd, cov cuab yeej siv nrog cov duab nyuaj xws li cov kaus mom hlau uas yuav tsum tau tiv thaiv lub siab ntev tsis tuaj yeem ua los ntawm PE.
Ntxiv rau cov yam ntxwv no, tus nqi ntawm PE kuj tseem qis dua li ntawm cov lus hais saum toj no.
Feem ntau hais lus, PE thiab aramid muaj lawv tus kheej qhov zoo thiab qhov tsis zoo. Txawm li cas los xij, PE tam sim no tau siv dav dua los ua cov mos txwv txheej. Los yog xaiv cov khoom siv phom phom uas haum rau koj raws li koj qhov xwm txheej tiag tiag.
