Nyob rau hauv lub tsev rwb thaiv tsev mortar thiab putty hmoov, qhov loj ntawm hydroxypropyl methylcellulose purity ncaj qha cuam tshuam rau qhov zoo ntawm engineering siv, yog li dab tsi yog qhov cuam tshuam rau purity ntawm hydroxypropyl methylcellulose?Pab koj teb lo lus nug no hnub no.
Hauv kev tsim cov txheej txheem ntawm hydroxypropyl methylcellulose, cov pa oxygen tshuav nyob rau hauv cov tshuaj tiv thaiv kettle yuav ua rau degradation ntawm hydroxypropyl methylcellulose thiab txo qhov hnyav molecular.Txawm li cas los xij, cov pa oxygen seem muaj tsawg, yog li nws tsis yooj yim rau reattach cov molecules tawg.Lub ntsiab saturation tus nqi thiab hydroxypropyl cov ntsiab lus muaj kev sib raug zoo, qee lub Hoobkas tsuas yog xav txo tus nqi thiab tus nqi, tsis xav txhim kho cov ntsiab lus ntawm hydroxypropyl, yog li qhov zoo tsis tuaj yeem ncav cuag qib ntawm cov khoom txawv teb chaws zoo sib xws.
Cov dej tuav tus nqi ntawm hydroxypropyl methylcellulose thiab hydroxypropyl kuj muaj kev sib raug zoo, thiab rau tag nrho cov txheej txheem tshuaj tiv thaiv, hydroxypropyl methylcellulose kuj txiav txim siab cov dej tuav tus nqi ntawm hydroxypropyl methylcellulose.Cov nyhuv ntawm alkalization, qhov piv ntawm chloromethane rau propylene oxide, qhov concentration ntawm alkali thiab qhov sib piv ntawm cov dej rau cov paj rwb zoo tag nrho txiav txim siab qhov kev ua tau zoo ntawm cov khoom.
Qhov zoo ntawm raw cov ntaub ntawv, alkalization nyhuv, txheej txheem piv tswj, hnyav piv thiab neutralization nyhuv, tag nrho cov txiav txim qhov zoo ntawm hydroxypropyl methyl cellulose, ib co hydroxypropyl methyl cellulose ua kom yaj tom qab zoo li mis nyuj yog huab heev, ib co milky dawb, qee daj, qee qhov meej thiab pob tshab.Yog tias koj xav daws nws, kho los ntawm cov ntsiab lus saum toj no.Qee lub sij hawm acetic acid tuaj yeem cuam tshuam rau kev xa tawm, acetic acid yog qhov zoo tshaj plaws siv tom qab dilution, qhov loj tshaj qhov cuam tshuam los yog cov tshuaj tiv thaiv stirring yog uniform, qhov system ratio yog ruaj khov (qee yam khoom ya raws, cov ntsiab lus tsis ruaj khov, xws li rov qab cov kuab tshuaj), qhov tseeb, ntau yam cuam tshuam.Nrog rau kev ruaj ntseg ntawm cov khoom siv thiab kev ua haujlwm ntawm cov neeg ua haujlwm tau txais kev cob qhia, cov khoom tsim tawm yuav tsum ruaj khov heev.Kev xa tawm yuav tsum tsis pub tshaj ± 2%, thiab kev hloov pauv sib txawv ntawm pawg neeg hloov pauv yuav tsum tau tswj kom zoo.Kev hloov pauv hloov pauv, kev xa tawm yuav tsum zoo.
Yog li, cov khoom lag luam zoo yog txiav txim siab los ntawm cov khoom siv raw, cov cuab yeej tsim khoom, thiab lwm yam.Tsuas yog tswj nruj los ntawm ib qho kawg mus rau qhov kawg tuaj yeem tsim cov khoom lag luam nrog cov khoom zoo.
Post lub sij hawm: Sep-14-2022