HDPE=High Density Polyethylene, kana kuti low pressure polyethylene.Density iri pamusoro pe0.940.
LDPE = low density polyethylene, kana high pressure polyethylene, iri polyethylene polymerized pasi pekumanikidzwa kwakanyanya, ine density iri pazasi 0.922.
Iyo nhema geomembrane kazhinji HDPE (yakakwirira density polyethylene) geomembrane, nepo geomembrane chena kazhinji LDPE (yakaderera density polyethylene) geomembrane.Musiyano uripo pakati pezviviri izvi zvakanyanya mukuwanda uye kuita.Kuwanda kweiyo yekutanga yakakura, nepo density yeyokupedzisira idiki.Iyo yekutanga inonyanya kushandiswa se geotechnical zvinhu, nepo yekupedzisira ichishandiswa seyakagadzirwa firimu.
Chikonzero nei geomembrane dema dema ndechekuti geomembrane inogadzirwa neblack masterbatch, iyo inowedzerwa mukugadzirwa kweiyo geomembrane muchikamu.Kazhinji, huwandu hushoma hwe masterbatch hunogona kugadzirisa nhamba huru ye geomembranes, uye geomembrane masterbatch zvimedu zviri nyore kugadzirisa, izvo zvisingakanganisi kunaka kwe geomembrane.
Iyo chena geomembrane imhaka yekuti chena masterbatch particles inowedzerwa kune geomembrane, uye chena masterbatch zvimedu hazvizokanganisa kunaka kwegeomembrane.Kuwanda uye kuita kweblack geomembrane kwakakwira kupfuura iyo yewhite LDPE geomembrane nekuti mazhinji acho HDPE geomembrane.Iyo chena LDPE geomembrane inonyanya kushandiswa semafirimu epurasitiki zvigadzirwa, uye zvakare inoshandiswa zvakanyanya.
Nekuti kuwanda kweHDPE dema geomembrane yakakura kupfuura iyo yeLDPE chena geomembrane, maviri aya achave nemashandisirwo akasiyana.Kuenzanisa kwehupamhi hwese kunofanirawo kuve kwakavakirwa pakushandiswa kwezviviri mumhando imwechete yekuvaka.Kuenzanisa hakufaniri kubva pamasimba avo (kusaenzaniswa).Izvo zviviri zvichashandiswa zvakasiyana mukuvaka kwakasiyana, uye dzimwe nguva zvichave zvinotsiva kune mumwe nemumwe.
Iyo chena LDPE geomembrane ine zvirinani ductility pane dema HDPE geomembrane, uye kuchinjika kwayo zvakare kwakasimba kupfuura dema HDPE geomembrane.Iyo chena LDPE geomembrane inosangana nezvinodiwa zvekuvaka purojekiti zvakare chizvarwa chitsva chezvigadzirwa zve geoimpermeable, uye kuchinjika kwayo kuchavewo kwakasimba kupfuura iyo dema HDPE geomembrane muchirongwa chimwe chete.Iye zvino, mapurojekiti mazhinji anogonawo kuona mumvuri wechigadzirwa.
Zvinogona kuoneka kubva pamusoro apa kuti dema HDPE geomembrane uye chena LDPE geomembrane ane akasiyana mashandisirwo mumapurojekiti akasiyana, ayo asingagone kujekeswa.Mhando mbiri dzezvigadzirwa zvine simba radzo uye utera.Hunhu hwemhando mbiri idzi dzezvigadzirwa zvinofanirwa kutariswa zvichienderana nenzvimbo dzakasiyana.
Nguva yekutumira: Zvita-14-2022