Plasticizing txheej txheem
Plasticizing yog txheej txheem uas cov khoom siv polymer sib xyaw nrog cov khoom sib xyaw thiab softened los ntawm tshav kub rau hauv lub xeev cov kua nplaum. Cov txheej txheem no tso cai rau cov polymer kom muaj kev ua haujlwm zoo dua qub, yog li nws tau siv dav hauv kev tsim khoom ntawm ntau yam khoom yas.
Ntawm lawv, cov cuab yeej siv rau PVC plasticizing yog ob-yob plasticizing tshuab. Nws txiav cov khoom siv los ntawm cov menyuam sib txawv ntawm qhov sib txawv, thiaj li ua tiav cov nyhuv ntawm plasticizing. Nyob rau tib lub sijhawm, lub sijhawm ntev ntawm plasticizing kuj yog ib qho tseem ceeb cuam tshuam rau cov nyhuv plasticizing. Xaiv lub sij hawm sib txawv plasticizing raws li cov ntaub ntawv sib txawv los xyuas kom meej qhov zoo tshaj plaws.
Plasticizing tsis tsuas yog txhim kho cov khoom ua haujlwm ntawm polymers, tab sis kuj ua kom zoo dua lawv cov khoom siv kho tshuab thiab lub cev. Yog li ntawd, plasticizing tshuab tau dhau los ua ib qho ntawm cov txheej txheem tseem ceeb rau kev tsim khoom ntawm ntau yam khoom yas.
Nrog rau kev txhim kho txuas ntxiv ntawm kev tshawb fawb thiab thev naus laus zis, plasticizing thev naus laus zis kuj tseem niaj hnub tsim kho tshiab. Piv txwv li, nyob rau hauv lub hauv paus ntawm cov tsoos ob-yob yas yas, tshiab plasticizers tau tshwm sim, xws li ib leeg-ntsia hlau plasticizer thiab ntxaib-ntsia hlau plasticizer. Cov thev naus laus zis tshiab no tuaj yeem tsis tsuas yog txhim kho kev ua haujlwm ntawm plasticizing, tab sis kuj txo lub sijhawm plasticizing thiab txo cov nqi tsim khoom.
Kev npaj cov txheej txheem plasticizing
Kev npaj rau kev pub mis
Lub polymer yog sieved thiab magnetized ua ntej muab ntxiv rau lub tog raj kheej. Lub hom phiaj ntawm sieving yog tshem tawm ib co impurities, xyuas kom meej lub purity ntawm cov khoom thiab sim ua ib tug nyob rau hauv lub particle loj ntawm cov khoom. Magnetic absorption kev kho mob yog los tiv thaiv kev sib xyaw ntawm cov khoom siv hlau. Lwm cov additives kuj yuav tsum tau ua qee yam kev kho mob ua ntej siv, xws li preheating lub plasticizer ua ntej sib tov, thiab siv qee cov additives uas tsis muaj teeb meem rau tib neeg lub cev thiab ib puag ncig. Kev pub mis ntawm ib lub sij hawm yuav tsum tau tswj kom zoo, thiab tus nqi pub mis yog qhov sib txawv rau ob lub yob yas refining tshuab.
Tswj ntawm plasticizing kub
Plasticizing kub yog teem raws li qhov decomposition kub ntawm cov khoom, cov khoom yog ntxiv los ntawm cov menyuam, qhov siab dua qhov kub ntawm cov menyuam, cov khoom yuav yaj, uas yog, qhov chaw sib cuag ntawm cov khoom thiab cov menyuam yog loj, Qhov ntau dua qhov adhesion, cov khoom siv yooj yim sib tov sib xyaw, tab sis qhov kub ntawm cov menyuam tsis tuaj yeem siab dhau, yog tias qhov kub siab dhau, cov khoom yuav decompose. Qhov ntsuas kub tsawg dhau, qhov kev sib cuag me me, qhov adhesion me me, thiab qhov sib tov tsis sib xws, uas tsis zoo rau plasticization.
Tswj lub sijhawm plasticizing
Cov nyhuv ntawm plasticizing yog proportional rau lub sij hawm plasticizing, lub sij hawm ntev ntawm plasticizing, uas yog, qhov sib npaug ntawm cov khoom sib xyaw, qhov zoo dua cov nyhuv plasticizing, tab sis lub sij hawm ntev dhau lawm, nws yuav ua rau cov khoom siv qis dua. , luv plasticizing lub sij hawm, thiab cov khoom sib tov tsis sib xws, cov nyhuv tsis zoo tagnrho. Xaiv lub sij hawm sib txawv plasticizing raws li cov khoom sib txawv, thiab lub sij hawm tsim nyog plasticizing yog qhov lav ntawm plasticizing nyhuv.
Pib sib tov ntawm cov khoom
Kev sib xyaw thawj zaug tsis yog kev sib xyaw ua ke, nws yog kev sib xyaw hauv qab qhov kub ntawm cov polymer thiab nyob rau hauv ib qho me me shear quab yuam. Lub hom phiaj ntawm kev sib xyaw thawj zaug yog ua ib qho kev sib xyaw ua ntej sib xyaw hauv cov khoom sib tov tom qab los txhim kho qhov sib xyaw ua ke ntawm cov khoom kawg. Cov txheej txheem sib tov yog txhawm rau txhawm rau nce qib ntawm kev sib koom ua ke ntawm cov khoom sib xyaw, uas yog kev sib xyaw yooj yim.
Plasticizing pib sib tov
Thawj qhov sib xyaw yog plasticized, thiab lub hom phiaj ntawm plasticizing yog kom nws cov plasticity, kom cov khoom sib npaug sib npaug. Cov yas sib txawv muaj lawv tus kheej tsim nyog plasticizing tej yam kev mob, lub ntsiab tswj tej yam kev mob yog: plasticizing kub, plasticizing lub sij hawm thiab shear stress. Qhov kawg point ntawm plasticizing tuaj yeem txiav txim siab los ntawm qib ntawm kev sib xyaw ua ke thiab dispersion ntawm cov khoom, thiab tseem tuaj yeem txiav txim siab los ntawm kev ntsuas lub zog tsim kua muag ntawm cov qauv yas.
Nyob rau hauv luv luv, plasticizing technology yog ib feem tseem ceeb ntawm niaj hnub kev lag luam kev loj hlob. Nws tuaj yeem txhim kho qhov zoo thiab kev ua haujlwm ntawm cov khoom yas, tab sis kuj txhawb txoj kev loj hlob ntawm kev tiv thaiv ib puag ncig kev lag luam. Peb yuav tsum nquag tshawb nrhiav thiab tsim kho tshiab plasticizing thev naus laus zis los pab txhawb kev txhim kho kom ruaj khov rau yav tom ntej.
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