Dab tsi yog PE?
PE, hu ua polyethylene (polyethylene), yog ib qho ntawm cov khoom siv yas uas dav hauv ntiaj teb. Vim nws cov khoom siv lub cev thiab tshuaj lom neeg zoo, PE cov khoom siv nyob rau hauv ntau hom kev lag luam. Los ntawm cov ntim hnab rau cov ntawv xa khoom, polyethylene yuav luag txhua qhov chaw. Hauv tsab xov xwm no, peb yuav tshawb txog cov ntsiab lus PE yog, nws hom, cov khoom thiab thaj chaw ntawm daim ntawv thov.
1. Cov qauv tshuaj thiab kev faib tawm ntawm PE
PE yog ib lub thermoplastic resin tsim los ntawm ethylene monomers los ntawm cov tshuaj pleev roj polymerisation. Nyob ntawm cov pa siab thiab qhov kub thiab txias thaum lub sijhawm polymerisation, PE cov ntaub ntawv tuaj yeem faib rau hauv ntau hom:
Tsawg qis ntom polyethylene (ldpe): Hom no muaj ntau ntxiv thiab muaj cov yeeb yaj kiab uas ntim tau ntau dua thiab siv cov ntaub ntawv ntim khoom, thiab cov yeeb yaj kiab ua liaj ua teb Cov.

Kev kub siab Polyethylene (HDPE): cov molecular chains ntawm kev ceev nrawm thiab muaj cov tshuaj ua haujlwm zoo dua qub

Linear tsawg qhov ceev polyethylene (Lldpe): Lldpe yog cov qauv siv hluav taws xob tsawg nrog cov qauv ntawm LDPE nrog lub zog ntawm HDPE. Nws yog feem ntau siv los ua cov yeeb yaj kiab ua yeeb yam, hnab yas thiab cov ntim ntim khoom.

2. Cov yam ntxwv tseem ceeb ntawm PE cov ntaub ntawv
PE cov khoom muaj ntau lub cev thiab tshuaj lom neeg vim nws cov qauv molecular, uas ua rau nws muaj txiaj ntsig zoo hauv cov ntawv thov:
Tshuaj lom neeg tiv thaiv: PE cov khoom tau muaj kev tiv thaiv zoo tshaj plaws rau feem ntau cov acids, alkalis, ntsev ua kom nws zoo tagnrho rau cov tshuaj thiab cov khoom lag luam.

Cov kev cuam tshuam zoo tsis kam thiab tensile muaj zog: HDPE, tshwj xeeb, muaj lub zog siab thiab tuaj yeem tiv thaiv cov khoom lag luam muaj txiaj ntsig zoo uas yuav tsum tau ua kom muaj zog.

Cov khoom siv insulating zoo tshaj plaws: PE cov khoom yog cov tshuaj insulator hluavtaws hluav taws xob zoo, uas ua rau nws dav siv los ua cov txheej txheem insulating rau cables thiab xaim.

Cov khoom siv dej nqus dej tsawg: PE cov khoom muaj cov dej nqus dej tsawg heev thiab yog li ntawd khaws nws lub cev cov khoom hauv cov chaw noo noo.

3. Daim ntawv thov cov chaw ntawm PE cov ntaub ntawv
Ua tsaug rau lawv cov khoom thiab cov khoom lag luam zoo heev, PE cov khoom siv ua lub luag haujlwm tseem ceeb hauv lub neej txhua hnub thiab hauv kev lag luam. Paub dab tsi PE yog pab peb kom nkag siab zoo dua nws cov kev siv hauv ntau qhov chaw hauv cov teb sib txawv:
Kev lag luam ntim: PE cov ntaub ntawv tau siv nyob rau hauv kev tsim cov yeeb yaj kiab yas, LLDPE ntim cov hnab thiab LLDPE tshwj xeeb rau lawv cov khoom siv ntim khoom vim lawv tau yooj yim heev.

Kev tsim kho thiab kev lag luam piping: HDPE feem ntau siv nyob rau hauv kev tsim cov raj dej dej, roj pipelines thiab tshuaj siv tshuaj lom neeg vim nws qhov siab zoo thiab corrosion tsis kam.

Cov khoom siv hauv tsev: Muaj ntau txhua hnub khoom siv yas, xws li thoob, rub hnab thiab khoom noj khoom haus, yog tsim los ntawm polyethylene.

4. Kev tiv thaiv ib puag ncig thiab rov ua dua tshiab ntawm PE cov ntaub ntawv
Txawm hais tias nws muaj ntau qhov zoo, qhov kev siv dav dav ntawm PE cov khoom siv tau coj los txog kev muaj teeb meem ib puag ncig. Vim tias nws tsis txwv yooj yim, pov tseg PE cov khoom yuav muaj kev cuam tshuam ntev ntev ntawm cov ecosystem. Polyethylene cov ntaub ntawv yog rov ua dua tshiab. Los ntawm kev siv lub cev lossis tshuaj lom neeg, cov khoom pov tseg pov tseg tuaj yeem raug kho rau hauv cov ntaub ntawv tshiab, yog li txo qhov cuam tshuam rau ib puag ncig.
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Los ntawm kev tsom xam saum toj no, peb muaj kev nkag siab ntxaws txog qhov teeb meem ntawm "Dab tsi yog PE Khoom". Raws li cov khoom siv yas uas tseem ceeb tshaj plaws, Polyethylene yog dav siv nyob rau hauv ntau yam kev lag luam vim nws cov qauv tshwj xeeb thiab cov khoom tau zoo heev. Txawm hais tias nws siv ua cov nyom ib puag ncig, kev tswj hwm kom ruaj khov ntawm PE cov ntaub ntawv tuaj yeem ua tiav los ntawm kev rov ua kom muaj zog.