Dab tsi ntawm cov yas yog PE?
PE (Polyethylene, Polyethylene) yog ib qho ntawm cov thermoplastics feem ntau siv hauv kev lag luam tshuaj. Nws yog dav siv nyob rau hauv ntau yam teb thiab tau los ua cov khoom ntawm kev xaiv nyob rau hauv ntau industries vim nws zoo heev lub cev thiab kev khwv nyiaj txiag. Hauv tsab xov xwm no, peb yuav txheeb xyuas cov ntsiab lus ntawm PE plastics, lawv cov khoom thiab lawv cov ntawv thov tseem ceeb los pab koj nkag siab zoo dua cov khoom siv yas tseem ceeb no.
Basic Overview of PE Plastics
PE yas (polyethylene) yog cov khoom siv polymer tsim los ntawm polymerization ntawm ethylene monomer. Nyob ntawm qhov siab thiab qhov kub thiab txias thaum lub sijhawm txheej txheem polymerization, PE yas tuaj yeem muab faib ua ob peb hom tseem ceeb xws li low density polyethylene (LDPE), high density polyethylene (HDPE) thiab linear low density polyethylene (LLDPE). Txhua hom PE yas muaj nws tus kheej cov qauv thiab cov khoom siv rau cov xwm txheej sib txawv.
Hom PE yas thiab lawv cov khoom
Tsawg Density Polyethylene (LDPE)
LDPE yog tsim los ntawm high-pressure polymerisation ntawm ethylene, uas muaj ntau branched chains nyob rau hauv nws cov qauv thiab yog li ntawd muaj ib tug qis degree ntawm crystallinity.LDPE yog yus muaj los ntawm nws softness, toughness, transparency thiab cuam tshuam, thiab feem ntau yog siv nyob rau hauv zus tau tej cov films, hnab yas thiab ntim khoom noj. Txawm hais tias nws tsis tshua muaj zog thiab hardness, LDPE qhov kev ua tau zoo thiab tus nqi qis ua rau nws tseem ceeb hauv cov khoom ntim.

High Density Polyethylene (HDPE)
HDPE yog polymerised nyob rau hauv tsis tshua muaj siab thiab muaj ib tug ntau linear molecular qauv, uas ua rau ntau dua crystallinity thiab ceev.Qhov zoo ntawm HDPE yog nws zoo heev tshuaj tsis kam, abrasion kuj thiab tensile zog, thaum nws kuj muaj tsawg permeability. Cov khoom no ua rau HDPE dav siv hauv kev tsim cov kav dej, ntim, lub raj mis thiab cov khoom siv tshuaj tiv thaiv, thiab lwm yam.

Linear Low Density Polyethylene (LLDPE)
LLDPE yog tsim los ntawm co-polymerizing polyethylene nrog me me ntawm copolymer monomers (xws li butene, hexene) ntawm qhov tsis tshua muaj siab. Nws muab cov kev hloov pauv ntawm LDPE nrog lub zog ntawm HDPE, thaum nthuav tawm cov kev cuam tshuam zoo dua thiab kev ncab.

Cov chaw siv tseem ceeb ntawm PE yas
Vim muaj ntau yam thiab kev ua tau zoo ntawm PE yas, nws cov chaw siv tau dav heev. Hauv kev lag luam ntim khoom, PE yas feem ntau yog siv los ua ntau hom yas zaj duab xis, hnab thiab ntim ntim. Hauv cov kav dej, HDPE feem ntau yog siv los tsim cov kav dej thiab cov kav dej, cov kav dej, thiab lwm yam vim nws cov tshuaj tiv thaiv zoo heev thiab cov khoom siv kho tshuab. Hauv cov khoom siv hauv tsev, PE yas yog dav siv los tsim lub raj mis, ntim thiab lwm yam khoom yas. Hauv kev ua liaj ua teb, LLDPE thiab LDPE tau dav siv los ua cov yeeb yaj kiab ua liaj ua teb los muab cov nroj tsuag tiv thaiv thiab npog av.
Los xaus
PE yas yog dab tsi? Nws yog ntau yam, kev lag luam thiab siv dav siv thermoplastic. Los ntawm kev nkag siab txog ntau hom PE yas thiab lawv cov khoom, cov lag luam thiab cov neeg siv khoom tuaj yeem xaiv cov khoom zoo rau lawv cov kev xav tau. Los ntawm ntim thiab tubing rau cov khoom siv hauv tsev, PE yas ua lub luag haujlwm tseem ceeb hauv lub neej niaj hnub nrog nws cov txiaj ntsig tshwj xeeb. Yog tias koj tsis meej pem thaum xaiv cov ntaub ntawv yas, peb vam tias tsab xov xwm no tuaj yeem muab cov ntaub ntawv siv tseem ceeb rau koj.