Cov khoom PVC tau sib xyaw ua ke zoo rau txhua lub ces kaum ntawm peb lub neej txhua hnub, txij li cov kav dej uas thauj dej hauv peb lub tsev mus rau cov khoom ua si muaj yeeb yuj uas coj kev zoo siab rau cov menyuam yaus, thiab txij li cov kav dej yoog tau hauv cov chaw ua haujlwm mus rau cov plag tsev zoo nkauj hauv peb chav nyob. Txawm li cas los xij, tom qab lawv siv dav dav yog ib lo lus nug: dab tsi ua rau cov khoom no ua tiav qhov kev sib xyaw ua ke zoo meej ntawm kev yooj yim ua tiav, qhov zoo nkauj, thiab kev ua tau zoo? Hnub no, peb yuav tshawb pom peb yam tseem ceeb uas ua rau qhov no ua tau - ACR, cov khoom siv yas, thiab cov roj nplua nyeem sab hauv.
ACR: Tus Txhim Kho Kev Ua Haujlwm thiab Kev Ua Haujlwm Txhawb Nqa
ACR, lossis acrylic copolymer, yog ib qho khoom siv tseem ceeb uas ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov khoom ua thiab kev ua tau zoo ntawm PVC cov khoom. Thaum lub sijhawm ua PVC, kev ntxiv ACR tuaj yeem txo qhov viscosity ntawm yaj, yog li txhim kho qhov fluidity ntawm cov khoom. Qhov no tsis yog tsuas yog ua rau cov txheej txheem ua tiav du, txo cov kev siv zog thiab lub sijhawm tsim khoom, tab sis kuj pab txhim kho lub zog cuam tshuam ntawm cov khoom kawg, ua rau lawv ruaj khov dua hauv kev siv tiag tiag.
Thaum PVC raug ua tiav ntawm qhov kub siab, nws feem ntau yuav raug cua sov puas tsuaj, uas tuaj yeem cuam tshuam rau qhov zoo ntawm cov khoom. ACR tuaj yeem ua haujlwm ua tus tswj cua sov rau qee qhov, ncua qhov cua sov puas tsuaj ntawm PVC thiab ua kom ntseeg tau tias cov khoom ruaj khov thaum lub sijhawm ua tiav. Ntxiv mus, ACR kuj tseem tuaj yeem txhim kho qhov tiav ntawm cov khoom PVC, ua rau lawv zoo nkauj dua.
Cov Plasticizers: Tus Muab Kev Ywj Pheej thiab Kev Yas
Cov tshuaj plasticizers yog lwm yam tseem ceeb hauv cov khoom PVC, feem ntau yog lub luag haujlwm rau kev ua kom PVC yooj ywm thiab plasticity. PVC yog ib qho polymer khov kho hauv nws daim ntawv ntshiab, thiab nws nyuaj rau ua cov khoom yooj ywm. Cov tshuaj plasticizers tuaj yeem nkag mus rau hauv PVC molecular saw, txo cov zog intermolecular, yog li ua rau cov khoom siv yooj ywm dua.
Cov yas sib txawv muaj cov yam ntxwv sib txawv thiab cov xwm txheej siv. Piv txwv li, cov yas phthalate tau siv dav vim lawv cov txiaj ntsig zoo rau kev ua yas thiab tus nqi qis. Txawm li cas los xij, nrog rau kev tsom mus rau kev tiv thaiv ib puag ncig thiab kev noj qab haus huv, cov yas uas zoo rau ib puag ncig xws li citric acid esters thiab adipates tau dhau los ua neeg nyiam dua. Cov yas uas zoo rau ib puag ncig no tsis yog tsuas yog muaj cov khoom zoo rau kev ua yas xwb tab sis kuj ua tau raws li cov qauv ib puag ncig thiab kev nyab xeeb nruj, ua rau lawv haum rau kev siv hauv cov khoom ntim khoom noj, cov khoom siv kho mob, thiab cov khoom siv rau menyuam yaus.
Qhov ntau ntawm cov plasticizer ntxiv kuj muaj feem cuam tshuam loj rau cov khoom ntawm PVC. Kev ntxiv cov plasticizer ntau dua yuav ua rau cov khoom yooj ywm dua tab sis yuav txo lawv lub zog kho tshuab. Yog li ntawd, thaum tsim khoom tiag tiag, yuav tsum xaiv hom thiab qhov ntau ntawm cov plasticizer raws li cov kev xav tau tshwj xeeb ntawm cov khoom.
Cov Tshuaj Roj Sab Hauv: Cov Tshuaj Txhim Kho Kev Nqus Dej thiab Cov Tshuaj Txhuam Nto·
Cov roj nplua nyeem sab hauv yog qhov tseem ceeb rau kev txhim kho qhov ua haujlwm ntawm PVC thiab txhim kho qhov ci ntsa iab ntawm cov khoom. Lawv tuaj yeem txo qhov kev sib txhuam ntawm cov molecule PVC, ua rau cov khoom ntws tau yooj yim dua thaum lub sijhawm ua haujlwm, uas yog qhov tseem ceeb rau cov khoom PVC uas muaj cov duab sib txawv.
Thaum lub sijhawm sib tov thiab ua cov khoom siv PVC, cov roj nplua nyeem sab hauv tuaj yeem pab cov khoom sib xyaw ua ke, ua kom cov khoom zoo sib xws. Tsis tas li ntawd xwb, lawv kuj tseem tuaj yeem txo qhov kev sib txuas ntawm cov khoom siv thiab cov khoom siv ua haujlwm, txo qhov hnav ntawm cov khoom siv thiab ua kom nws lub neej ua haujlwm ntev dua.
Tsis tas li ntawd xwb, cov roj nplua nyeem sab hauv tuaj yeem txhim kho qhov ci ntsa iab ntawm cov khoom PVC, ua rau lawv zoo nkauj dua thiab zoo dua. Qhov no yog qhov tseem ceeb rau cov khoom PVC uas muaj qhov yuav tsum tau ua kom zoo nkauj, xws li cov vaj huam sib luag kho kom zoo nkauj thiab cov ntaub ntawv ntim khoom.
Kev Sib Koom Tes ntawm Peb Tus Yuam Sij
ACR, cov tshuaj ua kom yas, thiab cov roj nplua nyeem sab hauv tsis ua haujlwm ywj pheej; hloov chaw, lawv sib koom ua ke kom ntseeg tau tias cov khoom PVC muaj cov khoom ua haujlwm zoo heev, zoo nkauj, thiab ua tau zoo.
ACR txhim kho qhov ua haujlwm tau zoo thiab lub zog cuam tshuam, cov yas ua kom muaj kev ywj pheej thiab kev ua kom zoo, thiab cov roj nplua nyeem sab hauv ua kom zoo dua qhov ua haujlwm thiab txhim kho qhov ci ntsa iab ntawm qhov chaw. Ua ke, lawv ua rau cov khoom PVC ua tau raws li ntau yam kev xav tau ntawm ntau yam kev siv.
Xaus lus, ACR, cov tshuaj yas, thiab cov roj nplua nyeem sab hauv yog peb qhov tseem ceeb rau cov khoom PVC "kev ua haujlwm yooj yim + kev zoo nkauj siab + kev ua tau zoo muaj zog". Nrog rau kev txhim kho thev naus laus zis tas mus li, kev ua tau zoo ntawm cov tshuaj ntxiv no yuav raug txhim kho ntxiv, uas yuav tsav tsheb kev tsim kho tshiab tas mus li thiab kev nce qib ntawm kev lag luam khoom PVC, coj ntau yam khoom PVC zoo thiab ntau yam rau peb lub neej.
TopJoy Tshuajyog ib lub tuam txhab uas tshwj xeeb hauv kev tshawb fawb thiab kev tsim khoom ntawmPVC cua sov stabilizersthiab lwm yamcov khoom siv yas ntxiv. lt yog ib lub tuam txhab muab kev pabcuam thoob ntiaj teb rauCov khoom ntxiv PVCcov ntawv thov.
Lub sijhawm tshaj tawm: Lub Yim Hli-18-2025