PE yog dab tsi?
PE, lub npe hu ua polyethylene (Polyethylene), yog ib qho ntawm cov khoom siv dav siv hauv ntiaj teb. Vim nws cov khoom zoo heev ntawm lub cev thiab tshuaj lom neeg, PE cov ntaub ntawv tau siv dav hauv kev lag luam. Los ntawm cov hnab ntim khoom mus rau cov khoom siv, polyethylene yuav luag txhua qhov chaw. Hauv tsab xov xwm no, peb yuav tshawb xyuas kom meej tias PE yog dab tsi, nws hom, khoom thiab thaj chaw ntawm daim ntawv thov.
1. Cov qauv tshuaj thiab kev faib tawm ntawm PE
PE yog cov thermoplastic resin tsim los ntawm ethylene monomers los ntawm cov tshuaj tiv thaiv polymerization. Nyob ntawm qhov kub thiab txias thaum lub sijhawm txheej txheem polymerization, PE cov ntaub ntawv tuaj yeem muab faib ua ntau hom:
Tsawg qis ntom ntom polyethylene (ldpe): Hom khoom siv hluav taws xob ntau ntxiv thiab muaj cov yeeb yaj kiab yas, thiab siv cov ntaub ntawv ntim, thiab cov yeeb yaj kiab ua liaj ua teb.

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

Linear Low Density Polyethylene (LLDPE): LLDPE yog cov polyethylene tsawg ntom ntom nrog cov qauv linear molecular uas sib xyaw ua ke ntawm LDPE nrog lub zog ntawm HDPE. Nws yog feem ntau siv los ua zaj duab xis ncab, hnab yas thiab cov khoom ntim khoom lag luam.

2. Cov yam ntxwv tseem ceeb ntawm cov ntaub ntawv PE
PE cov ntaub ntawv muaj ntau lub cev thiab tshuaj lom neeg zoo heev vim nws cov qauv molecular tshwj xeeb, uas ua rau nws ua tau zoo nyob rau hauv ntau yam kev siv:
Tshuaj tiv thaiv: PE cov khoom muaj kev tiv thaiv zoo rau feem ntau cov kua qaub, alkalis, ntsev thiab cov kuab tshuaj nyob rau hauv chav tsev kub, uas ua rau nws zoo tagnrho rau cov tshuaj thiab tshuaj industries.

Kev cuam tshuam zoo thiab lub zog tensile: HDPE, tshwj xeeb tshaj yog, muaj lub zog siab thiab rigidity thiab tuaj yeem tiv taus cov neeg kho tshuab kev ntxhov siab, ua rau nws nquag siv los tsim cov khoom uas yuav tsum tau tiv thaiv cov khoom.

Cov khoom siv hluav taws xob zoo heev: PE cov khoom yog cov khoom siv hluav taws xob zoo heev, uas ua rau nws siv dav hauv cov txheej txheem insulating rau cables thiab xov hlau.

Low Water Absorption: PE cov khoom muaj qhov nqus dej tsawg heev thiab yog li khaws nws lub cev lub cev hauv qhov chaw ntub dej.

3. Kev siv thaj chaw ntawm cov ntaub ntawv PE
Ua tsaug rau lawv ntau yam thiab cov khoom zoo heev, PE cov ntaub ntawv ua lub luag haujlwm tseem ceeb hauv lub neej txhua hnub thiab hauv kev lag luam. Paub tias PE yog dab tsi pab peb kom nkag siab zoo dua nws cov kev siv ntau yam hauv ntau qhov chaw:
Kev lag luam ntim khoom: PE cov ntaub ntawv tau siv dav hauv kev tsim cov yeeb yaj kiab yas, cov hnab ntim khoom noj thiab cov yeeb yaj kiab ua liaj ua teb.LDPE thiab LLDPE tshwj xeeb tshaj yog tsim los ua ntau yam ntawm cov khoom ntim vim lawv zoo heev yooj thiab ductility.

Kev tsim kho thiab kev lag luam piping: HDPE feem ntau yog siv rau hauv kev tsim cov kav dej, cov kav dej thiab cov kav dej tshuaj lom neeg vim nws lub siab zoo thiab corrosion kuj.

Cov khoom siv hauv tsev: Ntau yam khoom siv yas niaj hnub, xws li cov thoob, cov hnab khib nyiab thiab cov thawv ntim khoom noj, yog tsim los ntawm polyethylene.

4. Kev tiv thaiv ib puag ncig thiab rov ua dua ntawm cov ntaub ntawv PE
Txawm hais tias nws muaj ntau yam zoo, kev siv PE cov ntaub ntawv dav dav tau coj los ntawm ib puag ncig teeb meem. Vim tias nws tsis yooj yim degrade, pov tseg cov khoom PE tej zaum yuav muaj kev cuam tshuam tsis zoo rau lub ecosystem. Cov ntaub ntawv polyethylene yog recyclable. Los ntawm kev siv lub cev lossis tshuaj, cov khoom pov tseg PE tuaj yeem rov ua dua tshiab rau hauv cov ntaub ntawv tshiab, yog li txo qhov cuam tshuam rau ib puag ncig.
Xaus
Los ntawm kev txheeb xyuas saum toj no, peb muaj kev nkag siab ntxaws txog qhov teeb meem ntawm "PE khoom yog dab tsi". Raws li cov khoom siv yas tseem ceeb heev, polyethylene tau siv dav hauv ntau qhov kev lag luam vim nws cov qauv tshwj xeeb thiab cov khoom zoo heev. Txawm hais tias nws siv ua rau muaj teeb meem ib puag ncig, kev tswj xyuas kom ruaj khov ntawm PE cov ntaub ntawv tuaj yeem ua tiav los ntawm kev rov ua dua tshiab.