Kev tshuaj xyuas ntev ntawm cov ntsiabteeb geotextile
Cov khoom siv raw ntawm filament geotextile yog polymer. Cov khoom siv no yog cov saw txoj hauv kev uas cuam tshuam rau xeb (laus) thiab nws yog qhov zoo rau kev xeb thiab hloov pauv, ua rau cov khoom puas tsuaj. Yog li no, kev pab cuam lub neej ntawm fiber ntau geotextiles yog ib txwm muaj txiaj ntsig los ntawm cov tuam tsev engineering.
Cov yam ntxwv kev ua tau zoo ntawm ntsiabteeb geotextile:
1. Lub zog muaj zog, vim kev siv cov yas tiaj tiaj hlau, nws tuaj yeem tswj lub zog thiab elongation nyob rau hauv qhov chaw qhuav thiab ntub.
2. Corrosion tsis kam, lub sij hawm ntev corrosion tsis kam nyob rau hauv cov av thiab dej ntawm qhov sib txawv pH.
3. Muaj qhov sib nrug nruab nrab ntawm cov dej zoo-permeable tiaj tiaj, yog li nws muaj cov dej zoo permeability.
4. Muaj peev xwm zoo tiv thaiv microbial tsis ua teeb meem rau cov kab mob me me thiab cov npauj.
5. Yooj yim rau kev tsim kho, lub teeb thiab mos cov ntaub, yooj yim thauj, kev tso thiab kev tsim kho.
Oxidation suav nrog thermal oxidation los ntawm kub thiab kub, thiab yees duab-oxidation ntawm ultraviolet rays nyob rau hauv lub hnub. Photooxidation muaj qhov ua kom muaj kev cuam tshuam muaj zog, vim tias ultraviolet lub teeb muaj ntau lub zog, uas tuaj yeem txiav cov xov molecular ntawm polymer lossis pib ua photooxidation cov tshuaj tiv thaiv. Tsis tas li ntawd, tshuaj lom neeg thiab kev siv roj ntsha kev yaig, kev ntub thiab qhuav, hloov khov-thaw hloov, thiab cov tshuab puas txhua yam cuam tshuam cov kav ntev ntawm cov khoom, nrog UV hluav taws xob yog qhov tseem ceeb tshaj plaws.
UV tsis kam ntawm ntau cov ntaub ntawv nyoos yog qhov phem tshaj. Ntawm lawv, UV tsis kam ntawm polypropylene thiab polyamide yog qhov phem tshaj, UV tsis kam ntawm polyester yog qhov zoo tshaj plaws, thiab UV tsis kam ntawm polyethylene thiab polyvinyl chloride tsis zoo. Propylene tsis zoo. Raws li kev laus zuj zus maj mam dhau ntawm qhov chaw mus rau sab hauv, qhov tuab ntawm qhov ntsiabteeb geotextile yog thinner thiab qhov kev ua los tiv thaiv kev laus tsis zoo.
