1. Dab tsi yog lub ntsiab ntawv thov ntawm hydroxypropyl methylulose (HPMC)?
Teb: HPMC tau siv dav hauv cov khoom tsim kho, 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 sib faib ua qib kev tsim kho, khoom noj thiab cov qib tshuaj raws li lub hom phiaj. Tam sim no, feem ntau ntawm cov khoom lag luam yog cov qib kev tsim kho. Hauv cov hmoov tsim kho, ua kom muaj hmoov rau hauv cov nyiaj ntau, kwv yees li 90% yog siv rau cov hmoov ua kom muaj hmoov, thiab cov so yog siv rau cov txiv kab ntxwv xis thiab lo kua nplaum.
2. Muaj ob peb hom ntawm hydroxypropyl methylcellose (HPMC), thiab dab tsi yog qhov sib txawv hauv lawv cov kev siv?
Teb: HPMC tuaj yeem faib ua cov hom khoom thiab kub-xaus. Cov khoom lag luam tam sim ntawd tau sai sai hauv dej txias thiab ploj mus rau hauv dej. Nyob rau lub sijhawm no, cov kua tsis muaj viscosity vim HPMC tsuas yog dispersed hauv dej yam tsis muaj kev sib cais tiag. Kwv yees li 2 feeb, lub viscosity ntawm cov kua maj mam nce, kev sib sau pob tshab viscous colloid. Cov khoom kub kub yaj, thaum ntsib nrog dej txias, tuaj yeem tawg nrawm nrawm hauv dej kub thiab ploj hauv dej kub. 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 nws tsim lub pob tshab viscous colloid. Qhov kub-melt hom tsuas yog siv rau hauv cov hmoov ua kom muaj hmoov thiab tshuaj khib. Hauv cov kua nplaum kua thiab pleev xim, yuav muaj pab pawg tshwm sim thiab tsis tuaj yeem siv. Cov hom tseem ceeb muaj cov kev siv dav dav. Nws tuaj yeem siv tau hauv cov hmoov ua kom muaj hmoov thiab tshuaj khib, nrog rau kua nplaum ua kua thiab pleev xim, tsis muaj cov contraindications.
3. Dab tsi yog cov kev sib cais ntawm hydroxypropyl methylcelulose (HPMC)?
Teb: Dej kub xaus txoj kev: Txij li HPMC tsis yaj hauv dej kub, HPMC tuaj yeem ua rau dej kub ntawm qhov pib theem, thiab tom qab ntawd txias. Ob txoj hauv kev tau piav raws li nram qab no:
1) Muab cov dej kub uas yuav tsum muaj dej kub rau hauv lub thawv thiab cua sov nws txog 70 ° C. Lub HydroxyPropyyl nrho methylcellulose tau maj mam ntxiv nyob rau hauv qeeb stirring, thiab tom qab ntawd maj mam tsim ib tug slurry, uas tau txias nyob rau hauv nplawm.
2), ntxiv 1/3 lossis 2/3 ntawm qhov uas yuav tsum tau dej rau hauv lub ntim, thiab ua kom sov rau ntawm HPMC raws li txoj kev 1), thiab npaj cov dej kub slurry; Tom qab ntawd ntxiv cov dej uas tseem tshuav rau cov dej txias rau dej kub slurry, cov sib tov tau txias tom qab nplawm.
Hmoov sib xyaw txoj kev: Sib tov HPMC hmoov nrog ntau cov tshuaj muaj ntau, thiab tom qab ntawd HPMC tuaj yeem yaj, vim tias tsuas yog HPMC me ntsis hauv txhua qhov me me Kaum hmoov, yuav yaj tawm tam sim ntawd thaum muaj kev sib cuag nrog dej. --Puterty hmoov thiab coll tuam ntxhab yog siv hom no. [Hydroxypropyl methylcellose (HPMC) yog siv los ua cov tuab thiab dej rov qab los tswj hwm hauv ncoo hmoov. ]
4. Yuav ua li cas thiaj li txiav txim siab qhov zoo ntawm hydroxyprropal methylcellose (HPMC) tsuas yog thiab intuitively?
Cov lus teb: (1) whiteness: tsis tuaj yeem tiv thaiv kom HPMC yooj yim siv, thiab yog cov neeg sawv cev kom huv, nws yuav cuam tshuam nws cov kev zoo. Txawm li cas los xij, feem ntau ntawm cov khoom lag luam zoo muaj zoo dawb. (2) Fineness: lub txiaj ntsig ntawm HPMC feem ntau muaj 80 mesh thiab 100 mesh, thiab 120 mesh tsawg dua. Feem ntau HPMC tsim hauv Hebei yog 80 mesh. Tus finer lub fineness, feem ntau hais lus, zoo dua. (3) Kev Hloov Teeb Hloov: Muab HydroxyPropropy (Holmc) mus rau hauv cov dej los ua ib qho kev hloov pauv ntawm colloid, thiab saib nws cov kev pauv teeb meem. Qhov ntau dua qhov kev hloov tsheb loj dua, qhov zoo dua, qhia tias muaj tsawg dua insolubles hauv nws. Cov. Lub permeability ntawm cov neeg ntsug feem ntau zoo, thiab nws tsis txhais tau tias yog qhov zoo dua li tias ntawm kab rov tav reactors, thiab khoom lag luam zoo yog txiav txim siab los ntawm ntau yam. (4) Qhov Loj Tshaj Plaws: Qhov loj dua qhov sib tsoo tshwj xeeb, qhov hnyav dua qhov zoo dua. Qhov tshwj xeeb yog qhov loj, feem ntau vim tias cov ntsiab lus ntawm hydroxypropyl group hauv nws yog siab, thiab cov ntsiab lus ntawm hydroxyproproutyl yog qhov siab, cov dej khaws cia zoo dua.
5. Dab tsi yog qhov nyiaj ntawm hydroxypropyl methylcellose (HPMC) hauv hmoov putty?
Teb: Tus nqi HPMC siv nyob rau hauv cov ntawv thov kev sib txawv ntawm cov huab cua, qhov zoo ntawm cov hmoov av hauv zos, cov tshuaj muaj hmoov thiab "zoo uas yuav tsum tau los ntawm cov neeg siv khoom". Feem ntau hais lus, nruab nrab ntawm 4 kg thiab 5 kg. Piv txwv li: Feem ntau ntawm cov hmoov putty hauv Beijing yog 5 kg; Feem ntau ntawm cov hmoov putty hauv Guizhou yog 5 kg nyob rau lub caij ntuj sov thiab 4.5 kg thaum lub caij ntuj no; Tus nqi ntawm putty nyob rau hauv Yunnan yog qhov me me, feem ntau 3 kg mus rau 4 kg, thiab lwm yam.
6. Dab tsi yog qhov tsim nyog viscosity ntawm hydroxypropyl methylulose (HPMC)?
Teb: putty hmoov feem ntau yog feem ntau 100,000 yuan, thiab cov cai rau tshuaj khib tau ntau dua, thiab yuan yuav tsum tau siv yooj yim. Ntxiv mus, cov haujlwm tseem ceeb tshaj plaws ntawm HPMC yog dej tuav, 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.
7. Dab tsi yog cov ntsuas ntsuas tseem ceeb ntawm hydroxypropylropeny (HPMC)?
Teb: Hydroxypropsyl cov ntsiab lus thiab viscosity, feem ntau cov neeg siv tau txhawj xeeb txog ob yam ntsuas no. Cov uas muaj cov ntsiab lus hydroxyproprots feem ntau muaj cov dej ua kom zoo dua. 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.
8. Dab tsi yog cov ntaub ntawv nyoos ntawm hydroxypropyl methylcelulose (HPMC)?
Teb: Lub ntsiab raw cov ntaub ntawv raw ntawm hydroxypropylulose (HPMC): Kev ua kom zoo nkauj, cov kua txiv me, acid, isopropanol, thiab lwm yam.
9. Dab tsi yog qhov ua haujlwm tseem ceeb ntawm daim ntawv thov
Teb: Hauv cov hmoov putty, hpmc ua si peb lub luag haujlwm ntawm thickening, dej tuav thiab tsim kho. Thickening: cellulose tuaj yeem ua tuab rau ncua thiab ua kom cov tshuaj daws teeb meem nce thiab nqis, thiab tiv taus sagging. Dej khaws cia: Ua cov hmoov ua kom qhuav maj mam, thiab pab cov ntug dej tshauv kom muaj kev cuam tshuam hauv kev ua dej. Kev tsim kho: Cellulose muaj cov nyhuv muaj lubricating nyhuv, uas tuaj yeem ua rau cov hmoov puty muaj kev tsim kho zoo. HPMC tsis koom nrog kev siv tshuaj lom neeg, tab sis tsuas yog ua lub luag haujlwm pab pawg. Ntxiv cov dej rau cov hmoov putty thiab muab tso rau ntawm phab ntsa yog tshuaj lom neeg cov tshuaj tiv thaiv, vim tias cov tshuaj tshiab tau tsim. Yog tias koj tshem tawm cov hmoov putty ntawm phab ntsa los ntawm phab ntsa, thiab siv nws dua, nws yuav tsis ua haujlwm vim tias cov khoom siv hluav taws xob (calcium carbonate) tau tsim. ) Ib yam nkaus. Lub hauv paus tseem ceeb ntawm cov hmoov tshauv calcium hmoov yog: sib xyaw ntawm Ca (OHO (OH) 2 -CA (OH) 2 ↓ + H2O HEXH FOSCAS yog nyob rau hauv dej thiab huab cua nyob rau hauv kev txiav txim ntawm CO2, calcium carbonate yog tsim tawm, thaum HPMC tsuas yog khaws cov tshuaj ntsuab zoo dua, thiab tsis koom nrog txhua yam kev siv tshuaj.
10. HPMC yog cov tsis-ionic cellulose ether, yog li dab tsi tsis-ionic?
Teb: Feem ntau hais lus, tsis yog-ion yog ib yam khoom uas yuav tsis ionize hauv dej. Ionization hais txog cov txheej txheem uas ib qho electrolyte rau hauv kev them nyiaj rau hauv kev them nyiaj rau hauv cov kuab tshuaj tshwj xeeb (xws li dej, cawv). Piv txwv li, sodium chloride (nacl), ntsev peb noj txhua hnub, yaj nyob rau hauv dej thiab chloride ions (cl) uas yog tsis zoo. Uas yog hais, thaum HPMC tau muab tso rau hauv dej, nws yuav tsis cais tawm rau hauv cov pej xeem, tab sis muaj nyob rau hauv daim ntawv ntawm molecules.
11. Dab tsi yog qhov kub thiab txias ntawm hydroxypropy kasthylcellulose rau?
Teb: Lub ntsuas kub ntawm HPMC muaj feem cuam tshuam nrog nws cov ntsiab lus methoxy, qis dua cov ntsiab lus methoxy ↓, qhov ntau dua cov pa taws kub ntau dua ↑.
12. Puas muaj kev sib raug zoo ntawm qhov poob ntawm cov hmoov putty thiab HPMC?
Teb: Cov hmoov poob ntawm cov hmoov putty yog feem ntau cuam tshuam nrog qhov zoo ntawm cov hmoov tshauv, thiab muaj me ntsis los ua nrog HPMC. Cov ntsiab lus tsawg dua ntawm grey calcium thiab tus tsis raug cai ntawm sabo thiab ca (Oh) 2 hauv grey calcium yuav ua rau hmoov hmoov. Yog tias nws muaj qee yam ua nrog HPMC, ces yog HPMC muaj cov dej tsis zoo, nws tseem yuav ua rau hmoov hmoov hmoov. Rau cov laj thawj tshwj xeeb, thov saib cov lus nug 9.
13. Dab tsi yog qhov sib txawv ntawm cov khaub thuas-dej tam sim ntawd thiab cov kub-soluble hom ntawm hydroxypropylulose hauv cov txheej txheem ntau lawm?
Teb: Cov dej txias tam sim ntawm HPMC yog cov npoo--kho nrog glyoxal, thiab nws disperses sai sai hauv dej txias, tab sis nws tsis paub tiag tiag. Nws tsuas yaj tag thaum viscosity nce. Kub qhuav hom tsis yog cov npoo kho nrog glyoxal. Yog tias tus nqi ntawm glyoxal yog loj, kev dispersion yuav tau nrawm, tab sis cov viscosity yuav nce qeeb, thiab yog tias tus nqi me, qhov fab ntxeev yuav muaj tseeb.
14. Dab tsi yog qhov tsis hnov tsw ntawm hydroxypropyl methylcellose (HPMC)?
Teb: HPMC ua los ntawm cov txheej txheem daws teeb meem siv Toluene thiab isopropanol li cov kuab tshuaj. Yog hais tias ntxuav tsis zoo heev, yuav muaj qee cov ntxhiab tsw.
15. Yuav ua li cas xaiv qhov tsim nyog hydroxypropyl methylcelulose (HPMC) rau cov hom phiaj sib txawv?
Teb: Daim ntawv thov ntawm Putty Hmoov: Qhov yuav tsum tau muaj tsawg, thiab viscosity yog 100,000, uas yog txaus. Qhov tseem ceeb tshaj plaws yog kom dej kom zoo. Daim ntawv thov ntawm cug: qhov yuav tsum tau muaj, siab viscosity, 150,000 yog qhov zoo dua. Daim ntawv thov ntawm cov kua nplaum: Cov khoom tseem ceeb uas yuav tsum muaj viscosity siab.
16. Dab tsi yog lwm lub npe rau hydroxypropyl methylulose?
Teb: HydroxyPropy cellulose, Lus Askiv: HydroxyPropyl Methylropy: HPMC lossis MHPC Alias: Hypromellose; Cellulose hydroxypropyl methyl ether; Hypromellose, cellulose, 2-hydroxypropyl methyl cellulose ether. Cellulose hydroxypropyl methylety ether ether.
17. Daim ntawv thov ntawm HPMC hauv cov hmoov putty, yog vim li cas rau lub npuas hauv cov hmoov noj ua noj?
Teb: Hauv cov hmoov putty, hpmc ua si peb lub luag haujlwm ntawm thickening, dej tuav thiab tsim kho. Tsis txhob koom nrog txhua yam kev tawm tsam. Cov laj thawj rau npuas: 1. Tso dej ntau dhau. 2. Hauv qab txheej tsis qhuav, tsuas yog txhuam lwm txheej rau saum, thiab nws yooj yim rau ua npuas ncauj.
18. Dab tsi yog cov mis ntawm putty hmoov rau phab ntsa sab hauv thiab sab nrauv?
Teb: Sab hauv Phab Ntsa Putty W hmoov: Cov calcium hnyav 800kg, cov av nplaum ntsuab ether, citricural av, thiab lwm yam tuaj yeem txuas ntxiv)
Phab ntsa sab nraud Putty Putty Putty: Maas 350kg Quartz Xuab zeb 500kg cellulose ether 3kg starch ether ether 0.5kg ntoo fiber 2kg
Lub Sijhawm Post: Dec-13-2022