Cov khoom siv lub tsho tiv thaiv mos mos yog ultra-siab molecular hnyav polyethylene (UHMWPE). It has an extremely low density and is currently the highest specific strength material among industrial fibers. Rau tib theem ntawm kev tiv thaiv, nws yog 20% -30% sib zog dua Kevlar, ua rau nws yog thawj qhov kev xaiv rau cov neeg nrhiav qhov kawg lub teeb.
1. Ultra- siab molecular hnyav polyethylene: Tam sim no cov khoom siv tseem ceeb tshaj plaws ntawm cov mos txwv.
Qhov zoo ntawm lub teeb yuag: Nrog qhov ceev ntawm tsuas yog 0.97 g / cm³, nws yog qhov sib dua li dej thiab ntab rau saum npoo, ua rau nws lub teeb tshaj plaws ntawm tag nrho cov siab - kev ua haujlwm fibers.
Kev ua haujlwm siab: Nws lub zog tshwj xeeb tuaj yeem ncav cuag 15 npaug ntawm cov hlau. Rau tib theem ntawm kev tiv thaiv, cov khaubncaws sab nraud povtseg ua los ntawm UHMWPE yog nyias thiab sib zog dua cov uas ua los ntawm Kevlar.
Cov xwm txheej uas siv tau: Siv dav hauv tub rog thiab tub ceev xwm hnav cov tsho tiv thaiv mos txwv, kaus mom hlau, thiab cov cuab yeej siv tactical, tshwj xeeb tshaj yog tsim rau cov neeg ua haujlwm uas yuav tsum hnav ntev ntev lossis siab - txoj haujlwm txav mus los.
Kev ceev faj: tsis zoo cua sov; kev ua tau zoo txo qis dua 70 degree, ua rau nws tsis haum rau kev siv sijhawm ntev - nyob rau hauv qhov kub siab - ib puag ncig.
Muab koj qhov kev tsom mus rau yav dhau los ntawm qhov sib npaug ntawm kev tiv thaiv thiab qhov hnyav, UHMWPE yog qhov kev xaiv zoo tshaj plaws rau "kev tiv thaiv lub teeb."
2. Kevlar: Qhov sib npaug ntawm lub teeb yuag thiab ntev
Lub teeb yuag thiab siab -Lub zog: Nws qhov ceev yog 1/5 ntawm cov hlau, thiab nws lub zog tensile yog 5 npaug ntawm cov hlau ntawm tib qhov hnyav. Nws yog qhov sib zog dua li cov hlau thiab ceramics.
Zoo Siab -Tsub Resistance: Nws tuaj yeem tiv taus qhov kub txog li 400 degree, thiab yuav carbonize los ua cov cua sov- insulating txheej thaum raug kub siab tshaj 900 degree, ua rau nws haum rau cov xwm txheej xav tau kev tiv thaiv hluav taws.
Kev txwv: me ntsis hnyav dua UHMWPE, thiab rhiab rau dej thiab UV hluav taws xob. Ntev - lub sij hawm raug yuav ua rau aging, thiab nws lifespan feem ntau yog 3-5 xyoo.
Yog tias koj ua qhov tseem ceeb ntawm txhua qhov kev hloov pauv ib puag ncig, Kevlar tseem yog qhov kev xaiv txhim khu kev qha.
3. Ceramic Bulletproof Phaj: Sib dua li hlau, tab sis tsis yog "Soft" Lightweight
Sib piv: Cov ntaub ntawv ceramic (xws li silicon carbide thiab boron carbide) yog 30% -50% sib dua li cov hlau phaj nrog kev tiv thaiv sib npaug, uas yog qhov tseem ceeb rau kev ua kom qhov hnyav. Tseem ceeb tseem yog "hardware" kev tiv thaiv: Thaum sib zog dua hlau, cov ceramic ntxig nws tus kheej tseem hnyav thiab nruj, ua rau nws tsis yooj yim rau hnav dua li cov fibers mos.
Kev tiv thaiv pov tseg: Nws tuaj yeem tawg tom qab muaj kev cuam tshuam, nws tsis tuaj yeem rov siv dua thiab yuav tsum tau hloov tam sim ntawd.
Nws yog ib qho kev daws teeb meem hauv kev tiv thaiv nyuaj, tab sis qhov no tsis sib npaug rau "hnav hnav ris tsho."
