Taw qhia rau hydroxyPropyl methyl
HydroxyPropyyl methylulose, tseem hu ua hypromellose thiab cellulose hydroxypropyl metherylrope ua cov khoom siv raw, uas yog qhov tshwj xeeb hauv kev ua haujlwm. HPMC yog hmoov dawb, tasteless, tsis muaj ntxhiab, tsis muaj tshuaj lom, tsis hloov pauv ntawm tib neeg lub cev thiab tawm ntawm lub cev. Cov khoom yog soluble hauv dej, tab sis insoluble hauv dej kub. Cov kua aqueous yog cov xim tsis muaj kob uas muaj xim tsis zoo. HPMC muaj qhov zoo tshaj plaws thickening, zaj duab xis, tshuaj ntxuav, cov tshuaj ntxuav roj, cov tshuaj ntxuav roj, cov kua zaub thiab tshuaj polymerization.
1. Cov ntsiab lus muaj calcium tsawg ntawm grey calcium thiab cov sib piv tsis tsim nyog ntawm Cao thiab Ca (Oh) 2 hauv grey calcium yuav ua rau hmoov hmoov. Yog tias nws muaj qee yam ua nrog HPMC, ces yog tias cov dej tuav HPMC tsis zoo, nws tseem yuav ua rau hmoov hmoov. Puas yog cov hmoov poob ntawm putty hmoov cuam tshuam nrog hydroxypropyl methylulose? Cov hmoov poob ntawm cov hmoov putty yog feem ntau cuam tshuam nrog qhov zoo ntawm cov ntug dej tshauv, thiab muaj me ntsis los ua HPMC.
2. Qhov tseem ceeb tshaj plaws ntawm hydroxypropyf methylcellulose yog dej cia, ua raws li thickening. Nyob rau hauv cov hmoov putty, tsuav li lub taub dej ceev yog qhov zoo thiab lub viscosity yog tsawg (70,000-80,000), nws tseem ua tau. Ntawm chav kawm, qib siab dua viscosity, zoo dua cov txheeb ze cov dej rov qab khaws cia. Thaum lub viscosity tshaj 100,000, lub viscosity yuav cuam tshuam rau cov dej tuav tseg. Tsis ntau ntxiv lawm.
Dab tsi yog lub viscosity ntawm hydroxypropyl methylcellose (HPMC)?
Putty hmoov feem ntau yog 100,000 yuan, thiab cov cai rau tshuaj khib tau ntau dua, thiab Yuan yuav tsum tau siv yooj yim.
3. Dab tsi yog cov ntaub ntawv nyoos ntawm hydroxypropyl methylulose? Cov ntaub ntawv raw loj ntawm hydroxypropylulose (HPMC): Cov zaub mov ua kom zoo nkauj, cov tshuaj txhuam me, acid, isopropanol, thiab lwm yam.
4. Dab tsi yog vim li cas rau qhov tsis hnov tsw ntawm hydroxypropyl methylulose? Lub HydroxyPropyyl methylculose tsim los ntawm cov kuab tshuaj siv toluene thiab isopropanol raws li cov kuab tshuaj. Yog hais tias ntxuav tsis zoo heev, yuav muaj qee cov ntxhiab tsw.
5. HydroxyPropyyl methylulose: ib qho nrog cov ntsiab lus hydroxypropyl yog feem ntau zoo dua hauv cov dej khaws cia. Ib qho nrog cov viscosity siab muaj cov dej siab zoo dua, tsis yog), thiab ib qho uas muaj viscosity siab yog siv tau zoo dua hauv cov xis. Dab tsi yog cov ntsuas tseem ceeb? Hydroxypropyl cov ntsiab lus thiab viscosity, feem ntau cov neeg siv tau txhawj xeeb txog ob yam ntsuas no.
Puas yog qhov tshwm sim ntawm efforalescence nyob rau hauv cug ntsig txog hydroxypropyl methylulose?
Qee lub sijhawm dhau los, ib tus neeg siv khoom hais tias cov khoom muaj efflorescence, thiab nws tau ua txau. Shartcrete: lub luag haujlwm tseem ceeb yog los npog sab nraub qaum, roughen, thiab nce cov nplaum ntawm phab ntsa thiab cov khoom siv saum npoo. Siv tsawg heev, tsuas yog tshuaj tsuag ib txheej nyias nyias ntawm phab ntsa. Ntawm no yog daim duab ntawm Efflorescence Perenomenon tias cov qhua tuaj noj mov xa kuv, vim tias hydroxyprropen Thiab cov tshwm sim ntawm efflorescence yog: zoo tib yam qhob silicate, thiab cov tshuaj lom neeg muaj zog, thiab cov dej ntshiab roj av, thiab cov pa dej sib xyaw ua ke, thiab cov dej ntws tawm ntawm cov cua sov los ntawm phab ntsa. Nrog rau txoj kev nce qib evapund, lub hydroxide yog precipitated nyob rau ntawm lub sij hawm ntawm cov pob zeb lossis xim pleev xim rau ntawm phab ntsa, whitening, tev, thiab tev yuav tshwm sim. Cov txheej txheem no hu ua "Pan-alkali". Yog li nws tsis yog Ubiquinol los ntawm hydroxypropyl methylcelulose
Cov qhua tuaj noj mov tseem tau hais txog qhov tshwm sim: cov tshuaj txau tau ua rau nws muaj kev ua si ntawm phab ntsa. Efflorescence tshwm sim los ntawm evaporation ntawm dej siv hauv tshuaj tsuag grouting. Txawm li cas los xij, tsis muaj kev sib luag ntawm cov phab ntsa cib thiab tsis muaj efflorescence yuav tshwm sim. Yog li qhov tshwm sim ntawm efflorescence tsis muaj ib yam dab tsi ua rau txau.
Kev daws:
1. Cov ntsiab lus silicate ntawm lub hauv paus qhob xisas yog txo.
2. Siv anti-alkali rov qab txheej tus neeg sawv cev rau hauv lub pob zeb los thaiv cov capillary los thaiv, thiab txiav txoj kev ntawm lub lauj kaub-alkaline prenomenon.
3. Tiv thaiv cov dej ntws tawm, thiab tsis txhob nphoo ntau ntawm cov dej ua ntej kev tsim kho.
Kev kho cov yias-alkaline tshwm sim:
Lub pob zeb efflorescence ntxuav tus neeg saib xyuas ntawm kev ua lag luam tuaj yeem siv. Tus neeg sawv cev tu no yog cov kua tsis muaj kob uas ua los ntawm cov tsis yog ionic surfactants thiab cov kuab tshuaj. Nws muaj qee yam cuam tshuam rau kev ntxuav ntawm qee qhov chaw ua pob zeb ntuj. Tab sis ua ntej siv, nco ntsoov ua ib qho piv txwv ntsuas me me los ntsuas cov nyhuv thiab txiav txim siab seb puas yuav siv nws.
Daim ntawv thov ntawm cellulose hauv kev tsim kev tsim kho
1. Ceg sab cug: Txhim kho cov dispersion ntawm cov txiv hmab txiv ntoo-xuab zeb, muaj kev tiv thaiv kev tiv thaiv kab nrib pleb, thiab txhim kho lub zog ntawm xis mas.
2. Pobzeb Maas: txhim kho cov plasticity thiab dej khaws cov pob txha sib npha, txhim kho cov nplaum ntawm cov vuas, thiab tiv thaiv kev ua yeeb yam.
3. Txheej ntawm cov ntaub ntawv refractory xws li Asbestos: Raws li kev ncua kev rau txim rau tus neeg saib xyuas, thiab tseem txhim kho cov quab yuam ua rau lub substrate.
4. Gypsum coagulation slurry: Txhim kho cov dej tuav dej thiab cov txheej txheem, thiab txhim kho adchesion mus rau substrate.
5. Kev ua raws cai Maas: ntxiv rau kev ua haujlwm cement rau Gypsum Board los txhim kho kom muaj kev nyab xeeb.
6. Cov PuTex Putty: Txhim kho cov dej hauv qab thiab dej ua kom cov khoom siv ntawm cov khaub ncaws Ruin latin.
7. Stucco: Raws li muab tshuaj txhuam los hloov cov khoom ntuj, nws tuaj yeem txhim kho cov dej tuav dej thiab txhim kho kev sib raug zoo nrog lub substrate.
8. Cov yees duab: raws li lub tshuab ziab khaub ncaws rau cov txheej txheej looj, nws tuaj yeem txhim kho cov haujlwm thiab fluty hmoov thiab putty hmoov.
9. Txau cov xim: nws muaj cov xwm txheej zoo ntawm kev tiv thaiv lub dab dej xis lossis cov ntaub ntawv txau thiab muab cov qauv thiab tshuaj tsuag thiab tshuaj tsuag.
10. Cov khoom qub ntawm cov cement thiab gypsum: siv ua cov tshuaj tsis zoo nkauj thiab lwm yam khoom siv hydraulic los txhim kho cov khoom lag luam zoo nkauj.
11. Cov ntsa thawj: Vim yog cov nyhuv tiv thaiv thiab tiv thaiv kab mob, nws yog qhov ua tau zoo li cov phau ntawv rau cov xuab zeb.
12. Lwm tus: nws tuaj yeem siv los ua cua npuas tswj kom tau tus neeg sawv cev huab cua (PC version) rau nyias cov av nplaum ncuav tuaj thiab cov mud hydraulic tus neeg teb xov tooj.
Cov ntawv thov hauv kev lag luam tshuaj lom neeg
1. Polymerization ntawm Vinyl chloride thiab Vinylidene: Raws li kev ncua me me, nws tuaj yeem siv ua ke nrog cov cellulropal (HPC) los tswj cov kab cellulropyl
2. Cov nplaum: Raws li cov nplaum rau cov ntaub, nws tuaj yeem siv ua ke nrog cov xim yas acetate hloov cov hmoov txhuv nplej siab.
3. Tshuaj tua kab: ntxiv rau cov tshuaj tua kab thiab cov tshuaj tua kab, nws tuaj yeem txhim kho cov nplaum kom zoo li thaum txau.
4. Lawb tawm: Emulsion Stabilizer rau Asphalt Litx, thickener rau Styrene-Butadiene roj hmab (SBR).
5. Phau Ntawv: raws li kev tsim cov phau ntawv rau xaum thiab xaum xaum.
Cov ntawv thov nyob rau hauv kev lag luam tshuaj pleev ib ce
1. Zawv plaub hau: Txhim kho cov viscosity ntawm tsuaj zawv plaub hau, xab npum, thiab tu tus neeg sawv cev thiab kev ruaj ntseg ntawm npuas.
2. Tshuaj txhuam hniav: txhim kho cov tshuaj txhuam hniav ntawm cov tshuaj txhuam hniav.
Cov ntawv thov hauv kev lag luam hauv tsev tshuaj
1. Encapsulation: Tus neeg sawv cev encapsulation yog tsim rau hauv cov kev daws teeb meem organic los yog siv cov tshuaj tsuag tshuaj, tshwj xeeb tshaj yog rau cov khoom siv tshuaj lom neeg.
2. Cov neeg sawv cev qeeb: 2-3 grams tauj ib hnub, 1-2g txhua zaus, cov nyhuv yuav tshwm sim hauv 4-5 hnub.
3. Qhov muag poob: Txij li thaum osmasce cov tshuaj aquylululose aqueous yog tib yam li lub kua muag, nws yog tsawg dua rau cov kua muag, nws yog qhov tsis zoo rau lub qhov muag kom hu rau lub qhov muag lens.
4. Jelly: Raws li cov hauv paus cov khoom siv ntawm cov tshuaj sab nraud lossis tshuaj pleev.
5. Ntsev tshuaj: ua cov tuab dua, dej rov ua tus sawv cev
Lub Sijhawm Post: Feb-21-2025