Cov khoom
Polymer Waterproof Board / Rau waterproofing ua hauj lwm
Cov yam ntxwv ua haujlwm
Cov khoom no tsuas yog ua los ntawm polyethylene (PE), polyvinyl chloride (PVC) raws li raw cov ntaub ntawv. Nrog rau cov neeg kho tshuab kev ua tau zoo indexes ntawm tensile tsis kam, kua muag kuj, siab sab saum toj tawg lub zog thiab siab elastic modulus, cov khoom dav yog 3 ~ 6m, thiab Qhov hnyav yog 200 ~ 1500g / m2 Nws muaj cov yam ntxwv ntawm kev laus tsis kam, zoo durability, loj kev sib txhuam coefficient, corrosion kuj, acid thiab alkali tsis kam, nontoxicity, siab puncture kuj zog thiab loj ib puag ncig kub adaptation ntau yam, thiab yuav siv tau nyob rau hauv-50 ~ 100 ℃ kev pab them nqi rau ntau tshaj 50 xyoo, nrog kev tsim kho yooj yim thiab txhim khu kev qha.
Kev tsim nyog
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| HDPE | LDPE | EVA | PVC | ||
| hom lus | ib puag ncig tus phooj ywg | |||||
| tensile zog MPa | ≥17 | ≥ 25 | ≥14 | Longitudinal 15 / kab rov tav 13 | ||
| elongation ntawm tawg% | ≥450 | ≥550 | ≥400 | Ntev 220 / kab rov tav 200 | ||
| Lub kaum sab xis tsim kua muag yog N / mm | ≥80 | ≥110 | ≥50 | / | ||
| Cov ntsiab lus carbon dub ntawm% | ≥ 2 | / | ||||
| kua muag zog MPa | / | ≥40 | ||||
| Kev hloov pauv qhov loj (ntu / kab rov tav)% | / | ≤ 5 | ||||
| Osmotic coefficient, cm / s | / | ≤10 ~ 11 | ||||
| Environmental stress cracking F20.h | ≥1500 | / | / | |||
| Oxidation induction lub sij hawm yog min ntawm 200 ℃ | ≥ 20 | / | / | |||
| Dej vapor permeability coefficient, g.cm/(cm2.s.Pa) | ≤ 1.0x10-13 | / | ||||
Khoom siv
Cov khoom siv dav siv hauv cov chaw pov tseg, cov chaw kho dej phwj tuaj, cov chaw kho dej khib nyiab thiab lwm yam kev tiv thaiv ib puag ncig, reservoirs, DAkes, channels, reservoirs, diversion tunnels, dej kev lom zem chaw, txoj kev, railways, tunnels, tshav dav hlau, mines, vaj tse thiab lwm yam. yooj yim waterproof thiab ntau yam underground thiab underwater engineering to tiv thaiv.
