Polyethylene yog muab los ntawm kev hloov pauv cov pa roj carbon monoxide (methane, ethane, propane mix) lossis los ntawm cov catalytic tawg ntawm cov roj crude rau hauv roj av. Nyob rau hauv daim ntawv purified heev, nws yog piped ncaj qha los ntawm lub refinery mus rau ib tug cais polymerisation cog.
polyethylene yog dab tsi?
Polyethylene muaj hydrocarbon chainsnrog cov ntsiab lus tseem ceeb tshaj plaws yog ethylene molecule, muaj 2 carbon thiab 4 hydrogen atoms. Thaum cov ethylene molecules sib xyaw ua ke hauv cov hlua ncaj los yog ceg, polyethylene yog tsim.
polyethylene tuaj qhov twg?
Polyethylene yog tsim los ntawm ethylene, thiab txawm hais tias ethylene tuaj yeem tsim los ntawm cov khoom siv txuas ntxiv mus, nws tsuas yog tau los ntawm cov roj av lossis cov nkev ntuj.
Puas polyethylene puas tsim kev puas tsuaj rau tib neeg?
Plastics 1 Polyethylene terephathalate (PET lossis PETE) & 2 HD Polyethylene (HDPE) tsis yog tsuas yog phem rau peb ib puag ncig xwb tab sis tuaj yeem ua rau tib neeg muaj mob ib yam nkaus, cov no tseem hu ua ib leeg siv plastics, thiab tej zaum yuav leach thaum raug UV, tshav kub thiab dhau sij hawm los ntawm ntuj tawg.
polyethylene siv qhov twg?
Low-density polyethylene
Nws melting point yog kwv yees li 110 ° C (230 ° F). Cov kev siv tseem ceeb yog nyob rau hauv ntim zaj duab xis, thoob khib nyiab thiab lub hnab ntim khoom noj, ua liaj ua teb mulch, hlau thiab cable rwb thaiv tsev, nyem fwj, khoom ua si, thiab khoom siv hauv tsev.
