Dab Tsi Cov Geomembrane Muab Tau Qhia Tau Hauv Nruab Nrab?
Lawv muab faib ua plaub pawg raws li qhov sib txawv ntawm cov khoom tsim tawm. Geomembrane yas zaj duab xis rau cov ntawv thov los tiv thaiv kev lag luam hauv tsev thiab txawv teb chaws, feem ntau suav nrog polyvinyl chloride (PVC) thiab polyethylene (PE), EVA (ethylene / vinyl acetate copolymer), thiab tseem siv tau rau hauv cov ntawv thov ECB (ethylene vinyl acetate kev hloov kho) Asphalt kev sib xyaw geomembrane), lawv yog hom polymer tshuaj yooj ywm cov khoom siv nrog cov khoom sib txawv tshwj xeeb, muaj zog elongation, siab yoog mus ua kom deformation, corrosion corrosion, tsis tshua muaj kub tsis kam thiab zoo frost tsis kam. Tus txheem lub npe ntawm cov impermeable membrane yog polyethylene geomembrane, uas yog qhov tseem ceeb ua los ntawm cov khoom siv thermoplastic resin-polyethylene cob uas yog milky dawb translucent rau opaque. Polyethylene yog cov tshuaj loog uas muaj lub cev siab, tsis muaj tshuaj lom, tsis muaj ntxhiab, ntxhiab tsw dawb nrog lub siab yaj ntawm txog 110 ° C -130 ° C thiab qhov txheeb ze ntawm 0.918 - 0.965. Cov impermeable membrane muaj qhov kub tsis kam thiab qhov txias txias. Tshuaj lom neeg ruaj khov, siab rigidity thiab toughness, zoo txhua yam lub zog, zoo tsis kam mus rau ib puag ncig kev nyuaj siab tawg thiab rhuav lub zog. Raws li cov kev ntwm zuj zus, cov khoom siv kho tshuab thiab cov khoom thaiv lub zog yuav nce raws li, cov cua kub tsis kam, thiab lub zog tensile. Lub zog kuj yog ntau dua; nws tuaj yeem tiv thaiv corrosion los ntawm acid, alkali, organic solvent thiab lwm yam.
Kev faib tawm ntawm geomembranes thiab lawv lub zog thiab cov ntawv thov:
Geomembrane tuaj yeem muab faib ua plaub pawg raws li cov khoom sib txawv: yas geomembrane, steel geomembrane, polyester warp geomembrane thiab geomembrane.
1. Yas geomembrane: Yas geomembrane yog ntawv ruaj khov rau ntawm daim ntawv txuas extruded polymer thiab tom qab ntawd taw qhia thiab ncab raws cua sov. Txij li thaum lub polymer ntawm lub geomembrane kho dua tshiab thiab taw qhia los ntawm cov cua kub thiab ncab cov txheej txheem thaum lub sij hawm tsim cov txheej txheem, daim ntawv cog lus sib txuas nruab nrab ntawm cov hlua sib txuas molecular tau txhim kho thiab lub zog tau zoo tuaj. Yas geomembranes siv rau hauv txoj kev tsheb, kev sib tsoo thiab kev tiv thaiv pob zeb qis.
2. steel yas geomembrane: steel yas geomembrane yog lub zog loj dua hlau hlau, tom qab kev kho mob tshwj xeeb, thiab polyethylene, thiab ntxiv rau lwm cov tshuaj ntxiv, los ntawm kev extrusion ua kom nws cov khoom sib xyaw nrog lub zog loj dua, thiab tom qab ntawd los ntawm feem ntsug thiab kab rov tav Nws yog ua los ntawm kev siv hlau lossis xaim nyob rau hauv qee lub sijhawm thiab welded los ntawm tshwj xeeb fusion bonding vuam siv tshuab. Piv nrog yas geomembrane, nws muaj cov yam ntxwv ntawm lub zog loj, muaj peev xwm muaj peev xwm tiv thaiv tsis kam, tiv thaiv corrosion, tiv thaiv kev laus, kev sib txhuam loj loj, cov qhov tsis sib xws, kev tsim kho yooj yim thiab kev pab lub neej ntev. Hlau-yas geomembranes tau siv dav hauv cov av mos av qhov cuab lub zog, khaws cov phab ntsa thiab cov phiaj xwm thaiv kev ua si rau txoj kev, kev tsheb nqaj hlau, txuas hniav, txoj hauv kev, wharves, dams, slag yards, thiab lwm yam.
3. Polyester warp geotextile: Polyester warp xov geotextile yog ua los ntawm cov khoom siv muaj zog polyester fiber. Lub warp thiab cov xov txuas rau hauv cov ntaub tsis muaj dabtsi yog khoov lub xeev, thiab qhov sib txuam sib tshooj tau muab pov tseg nrog lub zog loj fiber ntau qhov ua kom muaj zog sib kis. Ua si nws cov khoom txhua yam. Lub siab-polyester polyester warp-knitted geotextile zaj duab xis muaj cov yam ntxwv ntawm high tensile lub zog, me tensile quab yuam thiab siab tsim lub zog. Qhov sib txawv ntawm qhov ntev ntawm lub zog thiab lub zog tom qab yog qhov me me, kev tiv thaiv kev tiv thaiv kev laus, kev tiv thaiv kev tiv thaiv, kev txhim kho corrosion, lub teeb nyhav, lub zog xauv lub zog nrog cov av lossis pob zeb, shear tsis kam mus txhawb cov av, txhim kho ntawm kev ntseeg hauv av thiab Loads muaj lub luag haujlwm tseem ceeb rau ua si.
Polyester warp-knit geomembranes tau siv dav hauv cov pas dej tauv, kev txhawb nqa dej thiab hydraulic cais kev sib cais, ntxiv dag zog rau av lub hauv paus, txhim kho lawv cov peev txheej tiv thaiv, txhim kho lub hauv paus kev muaj peev xwm thiab kev ruaj khov, nrog rau txoj kev, kev tsheb nqaj hlau thiab kev hauv nroog. Piv txwv li, txhawb txoj kev ntawm cov av ntawm txoj kev mos av ntawm kev txhawb nqa thiab kev sib tsoo ib txoj kab nqes, ntxiv rau ntawm kev khaws phab ntsa, zoo txhim kho lub zog tag nrho, tuaj yeem ncua qhov kev xav ntawm qhov tawg ntawm txoj kev
4. Geomembrane: Geomembrane yog qhov geocomposite ua los ntawm cov khoom siv, siv qee cov txheej txheem weaving thiab txheej txheem tshwj xeeb txheej.