HDPE khoom yog dab tsi? Kev tsom xam ntawm cov yam ntxwv thiab kev siv ntawm high-density polyethylene
Hauv kev lag luam tshuaj, HDPE yog cov khoom tseem ceeb heev, nws lub npe tag nrho yog High-Density Polyethylene (High-Density Polyethylene). HDPE yog dab tsi? Kab lus no yuav muab cov lus teb ntxaws ntxaws rau koj thiab kev txheeb xyuas qhov tob ntawm cov yam ntxwv ntawm HDPE, nws cov txheej txheem tsim khoom thiab nws cov kev siv ntau yam.
Cov tswv yim yooj yim thiab cov qauv tshuaj lom neeg ntawm HDPE
HDPE yog dab tsi? Los ntawm kev pom tshuaj lom neeg, HDPE yog cov thermoplastic polymer tsim los ntawm kev ntxiv polymerization ntawm ethylene monomers. Nws cov qauv molecular yog tus cwj pwm los ntawm cov hlua polyethylene ntev nrog cov txheeb ze molecular loj thiab tsawg dua cov saw hlau ntawm lawv, uas ua rau muaj kev sib txuam molecular. Cov txheej txheem nruj molecular no muab HDPE qhov ntom ntom hauv tsev neeg polyethylene, feem ntau ntawm 0.940 g / cm³ thiab 0.970 g / cm³.
Superior Physical Properties ntawm HDPE
HDPE cov ntaub ntawv nthuav tawm ntau lub cev zoo heev vim nws cov qauv molecular tshwj xeeb. Nws muaj lub zog siab thiab rigidity thiab tuaj yeem tiv taus cov neeg kho tshuab siab, uas ua rau nws zoo heev hauv kev siv cov khoom siv thauj khoom.HDPE muaj cov tshuaj lom neeg zoo heev, uas ua rau nws muaj txiaj ntsig zoo rau khaws cov tshuaj.
HDPE kuj tseem muaj qhov ua tau zoo ntawm qhov kub thiab txias, muaj peev xwm tswj tau nws qhov hnyav hauv ib puag ncig qis li -40 ° C yam tsis muaj nkig. Nws kuj muaj cov khoom siv hluav taws xob zoo, uas tau ua rau nws siv rau hauv sheathing ntawm cov xov hlau thiab cables.
HDPE txheej txheem ntau lawm thiab cov txheej txheem ua
Tom qab nkag siab tias cov khoom siv HDPE yog dab tsi, cia peb saib nws cov txheej txheem ntau lawm.HDPE feem ntau yog tsim los ntawm cov txheej txheem tsis tshua muaj siab polymerisation, piv txwv li nyob rau hauv cov xwm txheej tsis tshua muaj siab, nrog Ziegler-Natta catalyst lossis Phillips catalyst ua lub ntsiab catalyst, los ntawm cov roj theem, kev daws teeb meem. los yog slurry polymerization txoj kev. Cov txheej txheem no ua rau HDPE tsis tshua muaj crystallinity thiab siab crystallisation tus nqi, uas ua rau cov khoom siv polyethylene siab ceev.
HDPE cov ntaub ntawv muaj kev ua tau zoo thiab tuaj yeem ua pwm los ntawm ntau txoj hauv kev, xws li kev txhaj tshuaj molding, tshuab moulding thiab extrusion molding. Yog li ntawd, HDPE tuaj yeem ua rau ntau hom khoom xws li cov kav dej, cov yeeb yaj kiab, lub raj mis thiab cov thawv yas.
Ntau qhov chaw thov rau HDPE
Vim muaj ntau yam khoom zoo ntawm HDPE cov khoom, nws yog dav siv nyob rau hauv ntau yam lag luam. Hauv kev lag luam ntim khoom, HDPE feem ntau siv nyob rau hauv kev tsim ntawm ntau hom hluav taws xob, cov raj mis ntim khoom, cov khoom noj kom zoo kom ua rau lub ntim khoom ntev. Hauv kev tsim kho kev lag luam, HDPE yog siv los tsim cov kav dej thiab cov kav dej thiab cov kav dej, thiab nws cov corrosion thiab cuam tshuam tsis kam ua rau nws txhim khu kev qha nyob rau hauv ib puag ncig hnyav.
Hauv kev ua liaj ua teb, HDPE yog siv los ua cov yeeb yaj kiab ua liaj ua teb, ntxoov ntxoo nets thiab lwm yam khoom, qhov twg nws cov UV tiv taus thiab kav ntev kom ntseeg tau cov qoob loo tiv thaiv thiab tawm los.HDPE kuj tau siv dav hauv kev tsim cov rwb thaiv tsev rau cov xov hlau thiab cables, nrog rau hauv ntau yam tshuaj-resistant tanks thiab ntim.
Xaus
HDPE yog cov khoom siv thermoplastic polymer nrog cov khoom zoo xws li lub zog siab, tshuaj lom neeg tsis kam, kub tsis kam thiab ua haujlwm yooj yim. Nws muaj ntau yam kev siv tshuaj lom neeg, kev tsim kho, kev ua liaj ua teb thiab lwm yam. Yog tias koj tseem xav tias "Dab tsi yog cov khoom siv HDPE", cia siab tias los ntawm cov kab lus no, koj muaj kev nkag siab zoo txog cov yam ntxwv thiab kev siv ntawm HDPE, HDPE yog ib qho ntawm cov khoom siv tseem ceeb hauv kev lag luam niaj hnub no.