PES khoom yog dab tsi? Kev tsom xam qhov tob ntawm cov khoom thiab kev siv ntawm polyethersulfone
Hauv kev teb cov ntaub ntawv tshuaj, "Dab tsi yog cov khoom siv ntawm PES" yog ib lo lus nug ntau, PES (Polyethersulfone, Polyethersulfone) yog cov thermoplastic polymer ua haujlwm siab, vim nws cov khoom siv zoo heev thiab kub tsis kam, dav siv hauv ntau thaj chaw ua haujlwm. Hauv tsab xov xwm no, peb yuav tham txog qhov nthuav dav ntawm cov khoom siv, kev npaj thiab thaj chaw tseem ceeb ntawm PES.
Basic Properties of PES
PES yog cov khoom siv amorphous thermoplastic uas muaj kev kub ntxhov thiab cov khoom siv kho tshuab ruaj khov. Nws cov iav hloov pauv kub (Tg) feem ntau yog nyob ib puag ncig 220 ° C, uas ua rau nws ruaj khov nyob rau hauv qhov kub thiab txias. Cov khoom no ua rau PES zoo tagnrho rau kev tsim cov khoom siv rau hauv qhov chaw xav tau.
Kev npaj thiab kev ua haujlwm ntawm PES
PES feem ntau yog npaj los ntawm polymerization, feem ntau koom nrog cov polycondensation ntawm bisphenol A thiab 4,4'-dichlorodiphenylsulfone. Cov khoom muaj kev ua tau zoo thiab tuaj yeem ua tiav ntau txoj hauv kev, suav nrog kev txhaj tshuaj molding, extrusion thiab thermoforming.PES tuaj yeem ua tiav ntawm qhov kub ntawm 300 ° C thiab 350 ° C, uas yuav tsum muaj cov neeg siv khoom kom muaj cov cuab yeej ua haujlwm zoo thiab cov txheej txheem tswj. Txawm hais tias PES nyuaj rau kev ua haujlwm, cov khoom lag luam zoo li muaj qhov ruaj khov zoo thiab qhov chaw tiav.
Cov chaw thov tseem ceeb rau PES
PES cov khoom siv dav siv hauv ntau yam kev lag luam vim nws qhov kev ua tau zoo heev. Hauv kev lag luam hluav taws xob thiab hluav taws xob, PES yog dav siv los tsim hluav taws xob rwb thaiv tsev thiab cov khoom sib txuas vim nws cov rwb thaiv tsev zoo thiab kub tsis kam, thiab nws kuj tau siv dav hauv kev lag luam khoom siv kho mob. Vim nws qhov kub thiab txias tsis kam, hydrolysis tsis kam thiab tshuaj lom neeg tsis kam, PES yog cov khoom siv zoo tshaj plaws rau kev tsim cov khoom kho mob xws li cov cuab yeej phais, cov thawv kom tsis muaj menyuam thiab cov lim dej.
PES hauv Kev Kho Dej
Ib qho tseem ceeb ntawm daim ntawv thov yog dej kho.PES yog dav siv nyob rau hauv kev tsim cov dej kho daim nyias nyias vim nws cov tshuaj zoo heev inertness thiab tsis kam mus rau kis kab mob. Cov membranes no feem ntau yog siv rau hauv ultrafiltration thiab microfiltration systems thiab muaj peev xwm tshem tawm cov khib nyiab thiab cov kab mob hauv dej kom zoo thaum tswj xyuas cov permeability zoo heev thiab txhua yam muaj zog. Daim ntawv thov no qhia ntxiv txog qhov tseem ceeb ntawm PES cov ntaub ntawv hauv kev ua haujlwm siab.
Environmental Advantages of PES
Nyob rau hauv lub ntiaj teb niaj hnub ib puag ncig, cov khoom siv ntawm PES kuj tseem pom zoo: PES muaj lub neej ntev kev pab cuam thiab kev ua haujlwm zoo, uas txo qhov zaus ntawm cov khoom siv hloov pauv thiab yog li pov tseg, thiab cov txheej txheem tsim khoom yog ib puag ncig zoo, tsis xav tau cov kuab tshuaj, uas ua rau nws muaj txiaj ntsig zoo ntawm kev ruaj ntseg.
Xaus
Los ntawm kev txheeb xyuas cov ncauj lus kom ntxaws hauv daim ntawv no, peb tuaj yeem txiav txim siab tias PES yog cov khoom siv thermoplastic zoo nrog cov khoom zoo thiab ntau yam kev siv. Txawm hais tias nws yog nyob rau hauv kev lag luam hluav taws xob thiab hluav taws xob, cov khoom siv kho mob lossis kev kho dej, PES tau qhia qhov zoo ntawm qhov tshwj xeeb. Rau cov neeg nyeem uas xav paub "PES yog dab tsi", PES yog cov khoom tseem ceeb uas muaj ntau yam muaj peev xwm thiab ntau yam kev siv, thiab yuav ua lub luag haujlwm tseem ceeb hauv kev tsim kho kev lag luam yav tom ntej.