Geomembrane du
Kev Piav Qhia Luv:
Cov geomembrane du feem ntau yog ua los ntawm ib yam khoom polymer, xws li polyethylene (PE), polyvinyl chloride (PVC), thiab lwm yam. Nws qhov chaw yog du thiab tiaj tus, tsis muaj cov qauv pom tseeb lossis cov khoom me me.
Cov qauv yooj yim
Cov geomembrane du feem ntau yog ua los ntawm ib yam khoom polymer, xws li polyethylene (PE), polyvinyl chloride (PVC), thiab lwm yam. Nws qhov chaw yog du thiab tiaj tus, tsis muaj cov qauv pom tseeb lossis cov khoom me me.
- Cov yam ntxwv
- Kev ua tau zoo tiv thaiv kev nkos: Nws muaj qhov permeability qis heev thiab tuaj yeem tiv thaiv kev nkag mus ntawm cov kua. Nws muaj cov teebmeem zoo tiv thaiv dej, roj, tshuaj lom neeg, thiab lwm yam. Tus coefficient tiv thaiv kev nkos tuaj yeem ncav cuag 1 × 10⁻¹²cm/s txog 1 × 10⁻¹⁷cm/s, uas tuaj yeem ua tau raws li qhov yuav tsum tau tiv thaiv kev nkos ntawm feem ntau cov haujlwm.
- Kev ruaj khov tshuaj lom neeg muaj zog: Nws muaj kev tiv thaiv acid thiab alkali zoo heev thiab tiv thaiv corrosion. Nws tuaj yeem ruaj khov hauv ntau qhov chaw tshuaj lom neeg thiab tsis yooj yim raug cov tshuaj hauv av yaig. Nws tuaj yeem tiv taus qhov corrosion ntawm qee qhov concentration ntawm acid, alkali, ntsev thiab lwm yam kev daws teeb meem.
- Kev tiv thaiv kub qis zoo: Nws tseem tuaj yeem tswj tau qhov yooj ywm zoo thiab cov khoom siv kho tshuab hauv qhov chaw kub qis. Piv txwv li, qee cov khoom siv polyethylene du geomembranes zoo tseem muaj qee qhov elasticity ntawm -60 ℃ txog -70 ℃ thiab tsis yooj yim rau brittle tawg.
- Kev tsim kho yooj yim: Qhov saum npoo du thiab qhov sib txhuam me me, uas yooj yim rau kev tso rau ntawm ntau qhov chaw thiab lub hauv paus. Nws tuaj yeem txuas nrog los ntawm kev vuam, kev sib txuas thiab lwm txoj hauv kev. Qhov ceev ntawm kev tsim kho yog ceev thiab qhov zoo yog yooj yim los tswj.
Cov Txheej Txheem Tsim Khoom
- Txoj kev extrusion tshuab molding: Cov khoom siv polymer raw yog cua sov rau lub xeev molten thiab extruded los ntawm lub extruder los ua ib lub tubular blank. Tom qab ntawd, compressed cua yog tshuab rau hauv lub raj blank kom nws nthuav dav thiab lo rau lub pwm rau txias thiab shaping. Thaum kawg, lub geomembrane du yog tau los ntawm kev txiav. Lub geomembrane tsim los ntawm txoj kev no muaj ib tug uniform thickness thiab zoo mechanical zog.
- Txoj kev calendering: Cov khoom siv polymer raw yog cua sov thiab tom qab ntawd extruded thiab ncab los ntawm ntau lub rollers ntawm lub calender los tsim ib zaj duab xis nrog qee qhov tuab thiab dav. Tom qab txias, cov geomembrane du tau txais. Cov txheej txheem no muaj kev ua haujlwm siab thiab dav dav ntawm cov khoom, tab sis qhov tuab sib xws tsis zoo.
Cov Ntawv Thov
- Qhov project txuag dej: Nws yog siv rau kev kho dej tsis pub dej ntws ntawm cov chaw txuag dej xws li cov pas dej, pas dej loj, thiab cov kwj dej. Nws tuaj yeem tiv thaiv dej ntws, txhim kho kev khaws dej thiab kev xa dej ntawm cov project txuag dej, thiab txuas ntxiv lub neej ua haujlwm ntawm qhov project.
- Chaw Pov Tseg: Raws li lub liner tiv thaiv kev seepage nyob rau hauv qab thiab sab ntawm qhov chaw pov tseg, nws tiv thaiv cov leachate los ntawm kev ua qias tuaj rau hauv av thiab dej hauv av thiab tiv thaiv ib puag ncig ecological.
- Lub tsev tiv thaiv dej: Nws yog siv ua txheej tiv thaiv dej hauv lub ru tsev, qab nthab, chav dej thiab lwm qhov ntawm lub tsev kom tiv thaiv kev nkag mus ntawm dej nag, dej hauv av thiab lwm yam dej noo rau hauv lub tsev thiab txhim kho kev ua haujlwm tiv thaiv dej ntawm lub tsev.
- Toj roob hauv pes cuav: Nws yog siv rau kev tiv thaiv kev ntws ntawm cov pas dej cuav, pas dej ua si, chaw ua si golf, thiab lwm yam, los tswj kev ruaj khov ntawm lub cev dej, txo qhov dej ntws tawm, thiab muab lub hauv paus zoo rau kev tsim toj roob hauv pes.
Cov Lus Qhia thiab Cov Cim Qhia Txog Kev Siv Tshuab
- Cov Lus Qhia Tshwj Xeeb: Lub thickness ntawm cov geomembrane du feem ntau yog ntawm 0.2 hli thiab 3.0 hli, thiab qhov dav feem ntau yog ntawm 1m thiab 8m, uas tuaj yeem hloov kho raws li qhov xav tau ntawm ntau yam haujlwm sib txawv.
- Cov cim qhia txog kev siv tshuab: Xws li lub zog tensile, elongation thaum tawg, lub zog tsim kua muag sab xis, hydrostatic pressure resistance, thiab lwm yam. Lub zog tensile feem ntau yog nruab nrab ntawm 5MPa thiab 30MPa, elongation thaum tawg yog nruab nrab ntawm 300% thiab 1000%, lub zog tsim kua muag sab xis yog nruab nrab ntawm 50N/mm thiab 300N/mm, thiab hydrostatic pressure resistance yog nruab nrab ntawm 0.5MPa thiab 3.0MPa.
Cov kev cai dav dav ntawm cov geomembrane du
| Parameter (参数) | Unit (单位) | Hom Tus Nqi Ntau Yam (典型值范围) |
|---|---|---|
| Thickness (厚度) | mm | 0.2 - 3.0 |
| Dav (宽度) | m | 1 - 8 |
| Tensile zog (拉伸强度) | MPa | 5 - 30 |
| Elongation ntawm Break (断裂伸长率) | % | 300 - 1000 |
| Right-Angle Tear Strength (直角撕裂强度) | N/hli | 50 - 300 |
| Hydrostatic Pressure Resistance (Tebchaws Asmeskas) | MPa | 0.5 - 3.0 |
| Permeability Coefficient | cm/s | 1 × 10⁻¹² - 1 × 10⁻¹⁷ |
| Cov ntsiab lus carbon dub | % | 2 - 3 |
| Oxidation Induction Sijhawm (氧化诱导时间) | feeb | ≥100 |
