HDPE=Polyethylene cufnaanta sare, ama polyetylen cadaadis hooseeya.Cufnaanta ayaa ka sarreysa 0.940.
LDPE=polyethylene cufnaanta hoose, ama polyetylen cadaadiska sare, waa polyetylen polymerized hoos cadaadis sare, leh cufnaanta ka hooseeya 0.922.
Joomembrane-ka madow wuxuu u badan yahay HDPE (cufnaanta sare ee polyetylen) geomembrane, halka geomembrane cad uu u badan yahay LDPE (cufnaanta hoose ee polyetylen) geomembrane.Farqiga u dhexeeya labadu waa inta badan cufnaanta iyo waxqabadka.Cufnaanta kii hore waa ka weyn yahay, halka cufnaanta dambe ay yar tahay.Midka hore waxaa inta badan loo isticmaalaa sida walxaha geotechnical, halka kan dambe loo isticmaalo sida wax soo saarka filimada.
Sababta geomembrane madow u madow yahay waa in geomembrane lagu sameeyay masterbatch madow, kaas oo lagu daro habka wax soo saarka geomembrane ee saamiga.Guud ahaan, qadar yar oo masterbatch ah ayaa farsameyn kara tiro badan oo geomembrane ah, iyo qaybaha geomembrane masterbatch waa sahlan tahay in la farsameeyo, taas oo aan saameyn ku yeelan doonin tayada geomembrane.
Joomembrane cad waa sababta oo ah qayb ka mid ah masterbatch cad ayaa lagu daraa geomembrane, iyo qaybaha masterbatch cad ma saameyn doonaan tayada geomembrane.Cufnaanta iyo waxqabadka geomembrane madow ayaa ka sarreeya kan LDPE-da cad ee geomembrane sababtoo ah intooda badan waa HDPE geomembrane.Geomembrane-ka cad ee LDPE waxaa inta badan loo isticmaalaa sida badeecooyinka balaastigga ah, sidoo kale si ballaaran ayaa loo isticmaalaa.
Sababtoo ah cufnaanta HDPE geomembrane madow ayaa ka weyn kan LDPE geomembrane cad, labaduba waxay yeelan doonaan adeegsiyo kala duwan.Isbarbardhigga tayada guud waa in sidoo kale lagu saleeyaa codsiga labada nooc ee dhismo isku mid ah.Isbarbardhigga waa inuusan noqon mid ku saleysan awooddooda (la-barbardhig la'aan).Labadaba si kala duwan ayaa loo isticmaali doonaa dhismayaal kala duwan, mararka qaarkoodna waxay noqon doonaan beddelka midba midka kale.
Geomembrane-ka cad ee LDPE-ga wuxuu leeyahay ductility ka wanaagsan kan madow ee HDPE geomembrane, dabacsanaantiisuna way ka xoog badan tahay geomembrane HDPE madow.Geomembrane-ka cad ee LDPE-da ee buuxiya shuruudaha dhismaha mashruuca sidoo kale waa jiil cusub oo ah qalabka geoimpermeable, iyo la qabsigeedu wuxuu sidoo kale ka xoog badnaan doonaa geomembrane HDPE madow ee isla mashruuca.Hadda, mashruucyo badan ayaa sidoo kale arki kara hooska alaabta.
Waxaa laga arki karaa kor ku xusan in geomembrane HDPE madow iyo LDPE geomembrane cad waxay leeyihiin codsiyo kala duwan oo mashaariic kala duwan ah, kuwaas oo aan la soo koobi karin.Labada nooc ee alaabadu waxay leeyihiin awoodooda iyo daciifnimadooda.Tayada labadan nooc ee alaabooyinka waa in la tixgeliyaa iyadoo lagu saleynayo jagooyin kala duwan.
Waqtiga boostada: Dec-14-2022