Tsis ntev los no, polyvinyl chloride (PVC), ib yam khoom siv uas nyob hauv txoj haujlwm tseem ceeb hauv kev lag luam tshuaj lom neeg, tau rov qab los ua qhov chaw tseem ceeb ntawm kev lag luam. Cov qauv kev txhim kho hauv nws cov khoom tsim tawm, kev siv, thiab kev lag luam tau rub tawm kev saib xyuas dav dav. Raws li cov ntawv ceeb toom kev lag luam cuam tshuam, ntawm sab kev tsim khoom, ua ib qho ntawm cov neeg tsim khoom loj ntawm polyvinyl chloride hauv ntiaj teb, Tuam Tshoj tau pom ntau lub tuam txhab tshuaj lom neeg loj txuas ntxiv nce lawv cov peev txheej thiab txhim kho lawv cov thev naus laus zis ntawm cov kab ntau lawm polyvinyl chloride tsis ntev los no. Zhong'an, Jinan, Shandong Chemical Group tau tshaj tawm thaum ntxov lub hlis no tias nws tau ua tiav qhov project hloov pauv ntse ntawm nws lub rooj sib tham tsim khoom polyvinyl chloride. Los ntawm kev qhia txog cov txheej txheem tswj hwm tsis siv neeg siab heev thiab cov khoom siv tsim khoom ua tau zoo, nws tsis yog tsuas yog txhim kho kev ua haujlwm ntau lawm, nrog rau kev cia siab tias yuav nce ntxiv txhua xyoo ntawm 30%, tab sis kuj txo qis kev siv hluav taws xob thiab cov pa phem, ua tiav qhov kev tawg tshiab hauv kev tsim khoom ntsuab. Qhov kev ntsuas no kuj qhia txog kev tshawb nrhiav nquag ntawm cov tuam txhab hauv kev lag luam tam sim no kom nce peev xwm tsim khoom thiab ua kom zoo dua cov txheej txheem tsim khoom, lub hom phiaj kom nyob hauv txoj haujlwm zoo dua hauv kev sib tw ua lag luam hnyav zuj zus. Hauv daim teb thov, polyvinyl chloride, vam khom nws cov khoom zoo heev thiab tshuaj lom neeg, txuas ntxiv nthuav nws thaj chaw ua lag luam. Kev lag luam tsim kho tseem yog thaj chaw siv polyvinyl chloride ntau tshaj plaws, thiab nws siv dav hauv ntau hom yeeb nkab, cov ntaub ntawv, thiab cov ntaub ntawv kho kom zoo nkauj. Nrog rau kev nce qib ntawm kev tsim kho vaj tse hauv tebchaws thiab kev rov qab los ntawm kev lag luam vaj tse, qhov kev thov rau cov khoom polyvinyl chloride qhia txog kev loj hlob ruaj khov. Piv txwv li, hauv qhov project tsim kho tsheb ciav hlau loj hauv nroog tsis ntev los no hauv [Lub Npe Lub Nroog], ntau cov yeeb nkab polyvinyl chloride uas muaj zog thiab tiv thaiv kev laus tau siv rau cov dej thiab cov dej ntws, thiab lawv cov khoom siv tau zoo heev thiab tus nqi-kev ua tau zoo tau lees paub los ntawm sab project. Tsis tas li ntawd, polyvinyl chloride kuj tseem tshwm sim hauv cov teb tshiab xws li kev kho mob thiab hluav taws xob. Hauv kev lag luam kho mob, polyvinyl chloride kho mob qib kho mob tshwj xeeb tau siv dav los tsim cov khoom siv kho mob pov tseg xws li cov hnab infusion, cov hnab ntshav, thiab cov catheters kho mob. Vim tias nws muaj kev pom tseeb zoo, kev ywj pheej, thiab biocompatibility, nws muab kev yooj yim rau kev ua haujlwm kho mob thiab ua kom muaj kev nyab xeeb ntawm cov neeg mob. Hauv kev lag luam hluav taws xob, polyvinyl chloride, ua cov khoom siv rwb thaiv tsev rau cov xov hlau thiab cov cables, vam khom nws qhov kev ua tau zoo ntawm kev rwb thaiv tsev hluav taws xob thiab kev tiv thaiv tshuaj lom neeg, ua kom ntseeg tau tias kev ua haujlwm ruaj khov ntawm cov khoom siv hluav taws xob, ua tau raws li qhov xav tau ntawm kev lag luam hluav taws xob niaj hnub rau cov khoom siv ua tau zoo. Txawm li cas los xij, kev txhim kho ntawm kev lag luam polyvinyl chloride tsis yog txhua yam yooj yim. Tawm tsam keeb kwm yav dhau los ntawm kev cai tiv thaiv ib puag ncig nruj dua, cov teeb meem tso pa tawm ntawm cov pa phem xws li vinyl chloride monomer uas yuav tsim tawm thaum lub sijhawm tsim cov txheej txheem ntawm polyvinyl chloride raug saib xyuas nruj dua. Txhawm rau kom tau raws li qhov kev sib tw no, cov koom haum kev lag luam nquag npaj cov tuam txhab kom ua tiav kev sib pauv thev naus laus zis tiv thaiv ib puag ncig thiab kev cob qhia, txhawb kom cov tuam txhab txais yuav cov thev naus laus zis tsim khoom huv si, xws li cov txheej txheem oxidation catalytic roj-theem, los kho cov roj pov tseg kom tob kom ntseeg tau tias cov pa phem ua tau raws li cov qauv. Tib lub sijhawm, qee thaj chaw kuj tau qhia txog cov cai txhawb nqa kev lag luam, muab kev pab nyiaj txiag thiab kev nyiam se rau cov tuam txhab uas ua haujlwm txhim kho kev tiv thaiv ib puag ncig, coj kev lag luam kom hloov mus rau kev txhim kho ntsuab thiab ruaj khov. Hauv kev ua lag luam, tus nqi ntawm polyvinyl chloride tau hloov pauv mus rau qee qhov tsis ntev los no. Cuam tshuam los ntawm ntau yam xws li kev hloov pauv ntawm tus nqi roj av thoob ntiaj teb, cov xwm txheej ntawm cov khoom siv raw, thiab kev hloov pauv ntawm kev thov downstream, tus nqi yav tom ntej ntawm polyvinyl chloride tau ntsib ib qho txheej txheem ntawm thawj zaug nce, tom qab ntawd poob, thiab tom qab ntawd ruaj khov hauv lub hli dhau los. Cov kws tshuaj ntsuam xyuas kev lag luam taw qhia tias txawm hais tias muaj kev tsis paub meej hauv tus nqi tam sim no, nyob rau hauv lub sijhawm ntev, nrog rau kev rov zoo ntawm lub ntiaj teb kev lag luam thiab kev nthuav dav ntawm cov teb thov tshiab, kev cia siab ntawm kev ua lag luam ntawm polyvinyl chloride tseem dav heev, thiab nws xav tias tus nqi yuav nyob ruaj khov hauv qhov ntau thiab tsawg thiab qhia txog kev nce qib nruab nrab hauv xyoo tom ntej. Zuag qhia tag nrho, nyob rau hauv lub ntsej muag ntawm ob qho tib si lub sijhawm thiab kev cov nyom, kev lag luam polyvinyl chloride tab tom siv zog ua tiav nws tus kheej txoj kev loj hlob zoo los ntawm ntau yam kev ntsuas xws li kev tsim kho tshiab, kev nthuav dav daim ntawv thov, thiab kev txhim kho kev tiv thaiv ib puag ncig. Nws txoj kev loj hlob yav tom ntej yuav muaj kev cuam tshuam loj heev rau kev lag luam tshuaj lom neeg thiab kev lag luam downstream cuam tshuam.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-06-2024
