HDPE = High Density Polyethylene, lossis tsis tshua muaj siab polyethylene.Qhov ceev yog siab dua 0.940.
LDPE = low density polyethylene, los yog high-pressure polyethylene, yog polyethylene polymerized nyob rau hauv siab, nrog ib tug ceev hauv qab no 0.922.
Cov geomembrane dub feem ntau yog HDPE (high density polyethylene) geomembrane, hos cov dawb geomembrane feem ntau yog LDPE (tsawg ntom polyethylene) geomembrane.Qhov sib txawv ntawm ob qho tib si yog qhov ntom ntom thiab kev ua haujlwm.Qhov ntom ntawm qhov qub yog loj dua, thaum qhov ntom ntawm lub tom kawg yog me dua.Cov qub feem ntau yog siv los ua cov khoom siv geotechnical, thaum yav tas los yog siv los ua cov khoom ua yeeb yaj kiab.
Yog vim li cas vim li cas cov dub geomembrane yog dub yog tias geomembrane yog tsim nrog dub masterbatch, uas tau ntxiv rau hauv cov txheej txheem tsim khoom ntawm geomembrane hauv kev faib ua feem.Feem ntau, ib qho me me ntawm cov masterbatch tuaj yeem ua tiav ntau cov geomembranes, thiab cov geomembrane masterbatch hais tau yooj yim ua, uas yuav tsis cuam tshuam qhov zoo ntawm geomembrane.
Cov geomembrane dawb yog vim tias dawb masterbatch hais ntxiv rau geomembrane, thiab cov xim dawb masterbatch yuav tsis cuam tshuam qhov zoo ntawm geomembrane.Qhov ceev thiab kev ua tau zoo ntawm cov geomembrane dub yog siab dua li ntawm LDPE geomembrane dawb vim tias feem ntau ntawm lawv yog HDPE geomembrane.Dawb LDPE geomembrane feem ntau yog siv los ua cov khoom siv yas, thiab nws kuj tau siv dav.
Vim tias qhov ceev ntawm HDPE dub geomembrane yog ntau dua li ntawm LDPE dawb geomembrane, ob qho tib si yuav muaj kev siv sib txawv.Kev sib piv zoo tag nrho yuav tsum tau ua raws li kev siv ntawm ob qho tib si ntawm kev tsim kho.Kev sib piv yuav tsum tsis txhob ua raws li lawv lub zog (incomparability).Ob leeg yuav siv sib txawv hauv kev tsim kho, thiab qee zaum lawv yuav hloov pauv rau ib leeg.
Dawb LDPE geomembrane muaj ductility zoo dua li cov dub HDPE geomembrane, thiab nws yooj yim kuj muaj zog dua dub HDPE geomembrane.Cov dawb LDPE geomembrane uas ua tau raws li qhov project tsim tshwj xeeb kuj yog ib tiam tshiab ntawm geoimpermeable cov ntaub ntawv, thiab nws adaptability kuj yuav muaj zog dua dub HDPE geomembrane nyob rau hauv tib lub project.Tam sim no, ntau qhov haujlwm tseem tuaj yeem pom cov duab ntxoov ntxoo ntawm cov khoom.
Nws tuaj yeem pom los ntawm cov saum toj no tias HDPE geomembrane dub thiab dawb LDPE geomembrane muaj cov ntawv thov sib txawv hauv cov haujlwm sib txawv, uas tsis tuaj yeem ua dav dav.Ob hom khoom muaj lawv tus kheej lub zog thiab tsis muaj zog.Qhov zoo ntawm ob hom khoom no yuav tsum raug txiav txim siab raws li txoj haujlwm sib txawv.
Post lub sij hawm: Dec-14-2022