Tsis muaj viscosity: 400 yog tsuas yog siv rau kev tshuaj khib tus kheej, tab sis nws feem ntau txawv teb chaws.
Vim li cas: Qis viscosity, cov dej tsis zoo khaws cia, tab sis zoo leveling cov yam ntxwv, lub tshuaj khib siab.
Nruab nrab thiab qis viscosity: 20000-40000 feem ntau yog siv rau vais nplaum, caulking tus neeg tshuaj khib, thermal rwb thaiv tsev ua cug, thiab lwm yam.
Vim li cas: Kev ua haujlwm zoo, tsawg dua dej ntxiv, thiab cug dlh density.
1. Dab tsi yog qhov tseem ceeb siv ntawm hydroxypropyl methylcellose (HPMC)?
--A: HPMC tau siv dav hauv cov khoom siv hauv tsev, cov khoom siv hluavtaws, cov tshuaj, cov khoom noj, cov tshuaj ua liaj ua teb, luam yeeb thiab lwm yam kev lag luam. HPMC tuaj yeem faib ua: Qib Kev Tsim Kho Qib, Khoom Noj Qib Qib thiab Tshuaj Muaj Tshuaj raws li siv. Tam sim no, feem ntau cov khoom lag luam yog cov qib kev tsim kho. Hauv cov hmoov tsim kho, muaj cov hmoov tsim tawm hauv cov nyiaj ntau, kwv yees li 90% yog siv rau cov hmoov ua kom muaj hmoov, thiab cov so yog siv rau cug cug thiab kua nplaum.
2. Muaj pes tsawg hom ntawm hydroxypropyl methylcellose (HPMC) muaj nyob? Lawv siv yog dab tsi?
--A: HPMC tuaj yeem faib ua cov hom tseem ceeb thiab kub yaj. Cov khoom lag luam tam sim ntawd sai sai rau hauv dej txias thiab ploj hauv dej. Cov kua tsis muaj viscosity nyob rau lub sijhawm no vim HPMC tsuas yog dispersed hauv dej thiab tsis yog tiag tiag yaj. Tom qab txog 2 feeb, lub viscosity ntawm cov kua maj mam nce thiab pob tshab viscous colloid yog tsim. Cov khoom kub-soluble tuaj yeem tawg sai nyob rau hauv dej kub thiab ploj hauv dej kub thaum ntsib dej txias. Thaum qhov kub thiab txias rau qhov kub thiab txias (peb lub tuam txhab cov khoom lag luam yog 65 degrees Celsius), maj mam viscosity maj mam tshwm sim kom txog thaum lub pob tshab viscous colloid yog tsim. Kub Maut hom tsuas yog siv rau cov hmoov putty thiab tshuaj khib. Hauv cov kua nplaum kua thiab pleev xim, clumping yuav tshwm sim thiab tsis tuaj yeem siv. Tus yam tam sim muaj cov kev siv dav dav. Nws tuaj yeem siv rau cov hmoov ua hmoov, tshuaj khib, kua nplaum ua kua, thiab pleev xim yam tsis muaj cov contraindications.
3. Dab tsi yog cov txheej txheem dissolving ntawm hydroxypropyl methylcellose (HPMC)?
- HPMC cov dej kub xaus txoj kev: Txij li HPMC yog insoluble nyob rau hauv dej kub ntawm cov theem pib thiab yaj sai tom qab txias. Ob txoj hauv kev tau piav qhia hauv qab no:
1) Muab cov dej kub uas yuav tsum muaj dej kub rau hauv lub thawv thiab cua sov nws txog 70 ℃. Maj mam ntxiv hydroxypropyl methylulose nrog qeeb nplawm. Thaum pib HPMC ntab saum npoo av, tom qab ntawd maj mam ua cov slurry, thiab txias nrog nplawm.
2). Ntxiv 1/3 lossis 2/3 ntawm qhov yuav tsum tau dej rau hauv lub thauv, kub nws txog 70 ° C, tawg C, thiab npaj cov dej kub slurry; Tom qab ntawd ntxiv qhov seem ntawm cov dej txias rau cov dej kub slurry. slurry nyob rau hauv dej, do thiab txias qhov sib tov.
Hmoov sib xyaw txujci: Sib tov HPMC hmoov nrog cov khoom loj ntawm lwm cov hmoov nplej, sib tov nrog rab, thiab tom qab ntawd ntxiv dej kom yaj. Nyob rau lub sijhawm no, HPMC tuaj yeem yog yaj thiab yuav tsis clump ua ke, vim tias tsuas muaj me ntsis HPMC hauv txhua feem. Lub ces kaum me me. Cov hmoov dissolves tam sim ntawd thaum sib cuag. --Puterny hmoov thiab coll tuam ntxhab collector txoj kev. HydroxyPropyyl Metylcellulose (HPMC) yog siv los ua cov tuab thiab dej-khaws cov neeg sawv cev hauv ncoo hmoov.
4. Yuav ua li cas thiaj li txiav txim siab qhov zoo ntawm hydroxyprropal methylcellose (HPMC) tsuas yog thiab intuitively?
- Guiteness: (1) whiteness: tsis pom zoo vim li cas HPMC yog ib qho yooj yim siv, yog tias brainters yog ntxiv thaum lub sijhawm tsim khoom, nws yuav cuam tshuam nws cov kev zoo. Txawm li cas los xij, cov khoom lag luam zoo tshaj muaj zoo dawb. (2) Fineness: lub txiaj ntsig ntawm HPMC feem ntau 80 mesh thiab 100 mesh, nrog 120 mesh ua tsawg dua. Feem ntau ntawm HPMC tsim hauv Hebei yog 80 mesh. Tus finer lub finer zoo dua. (3) Kev Hloov Teeb Meem: Tso HydroxyPropyf methylcellose (HPMC) rau hauv dej los ua ib qho kev hloov pauv colloid, thiab kuaj xyuas nws cov kev hloov pauv pom. Lub siab dua lub teeb kev hloov pauv, qhov zoo dua, qhia tias muaj tsawg insoluble tshuaj sab hauv. Cov huab cua permeability ntawm ntsug reactors feem ntau zoo dua li ntawm kab rov tav reactors yog qhov zoo tshaj reactors zoo dua li ntawm kab rov tav reactors. Muaj ntau ntau yam uas txiav txim cov khoom zoo. (4) Qhov Loj Tshaj Plaws: Qhov loj dua qhov sib tsoo thiab qhov hnyav dua, zoo dua. Cov kev nqus tshwj xeeb feem ntau vim yog cov ntsiab lus hydroxypropyl hauv nws. Lub siab dua cov ntsiab lus hydroxypropyl, qhov zoo dua cov dej khaws cia.
5. Dab tsi yog qhov ntau npaum li cas ntawm hydroxypropyl methylcellose (HPMC) hauv hmoov putty?
Aanswer: Qhov ntau npaum ntawm HPMC nyob rau hauv cov ntawv thov tiag tiag txawv raws li kev nyab xeeb, qhov kub, thiab cov tswv yim tshauv. Ty hmoov thiab "cov qhua tuaj noj mov zoo". Feem ntau hais lus, nws yog nruab nrab ntawm 4kg thiab 5kg. Piv txwv li, feem ntau cov hmoov nplej nyob hauv Beijing yog 5 kg; Feem ntau cov hmoov tso rau Guizhou yog 5 kg nyob rau lub caij ntuj sov thiab 4.5 kg thaum lub caij ntuj no;
6. Dab tsi yog qhov tsim nyog viscosity ntawm hydroxypropyl methylulose (HPMC)?
- Putty hmoov feem ntau raug nqi 100,000 yuan, thiab tshuaj khib, yog li 150,000 yuan txaus. Thiab cov haujlwm tseem ceeb tshaj plaws ntawm HPMC yog dej tuav, ua raws li thickening. Hauv cov hmoov putty, tsuav nws muaj dej zoo khaws cia thiab qis viscosity (70,000-80,000), nws tsis ua li cas. 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 muaj cov nyhuv me me ntawm dej khaws cia.
7. Dab tsi yog cov ntsuas ntsuas tseem ceeb ntawm hydroxypropylropeny (HPMC)?
--A: Hydroxypropropyl cov ntsiab lus thiab viscosity, feem ntau cov neeg siv tau txhawj xeeb txog ob yam ntsuas no. Lub siab dua cov ntsiab lus hydroxypropyl, qhov zoo dua cov dej khaws cia. Nrog cov viscosity siab, cov dej rov qab yog qhov tseem ceeb (tsis yog kiag li) zoo dua, thiab muaj cov viscosity siab, nws yog qhov zoo dua siv hauv cov cement cug.
8. Dab tsi yog cov ntaub ntawv nyoos ntawm hydroxypropyl methylcelulose (HPMC)?
- A: Lub ntsiab raw cov ntaub ntawv raw ntawm hydroxypropylulose (HPMC): Cov zaub mov zoo dua, cov tshuaj txhuam me, cov tawv nqaij, yog cov dej cawv isopropyl, thiab lwm yam.
9. Dab tsi yog HPMC tseem ceeb ntawm HPMC hauv daim ntawv thov putty? Puas yog nws muaj kev cuam tshuam kev cuam tshuam?
- HPMC muaj peb lub luag haujlwm loj ntawm thickening, dej tuav thiab tsim hauv cov hmoov ua kom muaj hmoov. Thickening: cellulose tuaj yeem thicken ncua, ua kom cov kev daws teeb meem thiab tiv thaiv sagging. Dej khaws cia: Ua cov hmoov putty qhuav maj mam thiab pab cov tshuaj tiv thaiv ntawm grey calcium nyob rau hauv kev ua dej. Kev tsim kho: Cellulose muaj cov nyhuv muaj lubricating nyhuv thiab tuaj yeem ua rau cov hmoov puty muaj cov haujlwm zoo. HPMC tsis koom nrog kev siv tshuaj lom neeg thiab tsuas yog ua lub luag haujlwm ntawm lub luag haujlwm. Thaum cov hmoov putty tau ntxiv rau dej thiab thov rau phab ntsa, tshuaj lom neeg yuav tshwm sim. Raws li cov tshuaj tshiab tsim, cov hmoov ntawm phab ntsa tawm ntawm phab ntsa raug tshem tawm ntawm phab ntsa thiab hauv av ua hmoov ua ntej siv. Qhov no tsis ua haujlwm vim tias cov tshuaj tshiab (calcium carbonate) tau tsim. . Lub Cheebtsam tseem ceeb ntawm grey calcium hmoov yog: sib xyaw ntawm ca (huag) 2, cao thiab ib tug me me ntawm CaCo3, CAO (OH) 2 + CA2 = CAKO Grey Calcium Dissolves nyob rau hauv dej thiab Air Coal2 nyob rau hauv qhov kev txiav txim ntawm calcium carbonate, HPMC tsuas yog khaws cov calcium carbonate thiab pab kev tawm tsam zoo dua, thiab tsis koom nrog txhua yam kev tawm tsam.
10. HPMC yog cov tsis-ionic cellulose ether, yog li dab tsi tsis yog-ionic ib?
A: Nyob rau hauv Layman cov lus, tsis yog cov tshuaj ntsuab yog cov tshuaj uas tsis ionize hauv dej. Ionization yog cov txheej txheem los ntawm cov electrolytes sib cais rau hauv kev ywj pheej tsiv mus rau hauv qee cov kuab tshuaj (piv txwv li dej, haus dej). Piv txwv li, sodium chloride (NACL), cov ntsev noj nyob rau hauv dej thiab ionolves nyob rau hauv Sodium ions (na) thiab tsis zoo them chloride ions (CL). Ntawd yog, thaum HPMC tau muab tso rau hauv dej, nws tsis muaj kev sib cais rau hauv kev them nyiaj ions, tab sis muaj nyob rau hauv daim ntawv molecular.
Lub sijhawm Post: Feb-06-2024