1. Dab tsi yog cov ntsuas ntsuas tseem ceeb ntawm hydroxypropyl cellulose (HPMC)?
HPMC hydroxypropyl cov ntsiab lus thiab viscosity, feem ntau cov neeg siv tau txhawj xeeb txog ob yam ntsuas no. Cov dej ua kom dej yog feem ntau zoo dua rau cov neeg muaj cov ntsiab lus hydroxypropyl ntau. Cov viscosity siab, kev siv dej siab, feem ntau (es tsis yog abusute) zoo dua, thiab siab viscosity, zoo dua siv nyob rau hauv xis.
2. Dab tsi yog qhov ua haujlwm tseem ceeb ntawm daim ntawv thov HPMC hauv phab ntsa soty?
Hauv phab ntsa pov tseg, HPMC muaj peb lub zog: thickening, dej tuav thiab tsim kho.
Thickening: cellulose tuaj yeem ua kom tuab rau ncua thiab ua kom cov tshuaj daws tsis zoo, thiab tiv thaiv sagging. Dej khaws cia: Ua kom lub phab ntsa ua kom qhuav maj mam, thiab pab cov calcium grey kom hnov qab cov dej ua haujlwm hauv qab dej. Kev tsim kho: Cellulose muaj cov nyhuv muaj lubricating nyhuv, uas tuaj yeem ua kom lub ntsa tso ua kom muaj zog muaj cov haujlwm zoo.
3. Puas yog qhov poob ntawm phab ntsa Putty ntsig txog HPMC?
Qhov poob ntawm phab ntsa putty yog feem ntau cuam tshuam nrog qhov zoo ntawm cov ntug dej tshauv, tab sis tsis yog HPMC. Yog tias cov ntsiab lus calcium ntawm cov hmoov tshauv ntawm cov ntug dej tshauv thiab cov piv ntawm CAO thiab CA (OH) 2 hauv cov ntug dej tshauv tsis tsim nyog, nws yuav ua rau hmoov hmoov. Yog tias nws muaj qee yam ua nrog HPMC, tom qab ntawd HPMC cov dej tsis zoo yuav ua rau cov hmoov hmoov.
4. Yuav ua li cas ntau npaum li cas yog hydroxypropyl cellulose (HPMC) hauv phab ntsa soty?
Tus nqi ntawm HPMC siv nyob rau hauv cov ntawv thov tiag tiag txawv nyob ntawm huab cua, kub, hauv zos ntawm phab ntsa uas muaj zog, thiab "Zoo los ntawm cov neeg siv khoom". Feem ntau hais lus, nruab nrab ntawm 4 kg thiab 5 kg. Piv txwv li: Beijing Phab Ntsa Putty feem ntau yog 5 kg; Guizhou feem ntau yog 5 kg hauv lub caij ntuj sov thiab 4.5 kg thaum lub caij ntuj no; Yunnan yog qhov me me, feem ntau 3 kg mus rau 4 kg thiab li ntawd.
5. Dab tsi yog qhov tsim nyog viscosity ntawm hydroxypropyl cellulose (HPMC)?
Phab ntsa Putty yog feem ntau 100,000, tab sis lub tshuaj khib yog xav tau ntau dua, thiab siv 150,000 ua haujlwm. Ntxiv mus, lub luag haujlwm tseem ceeb tshaj plaws ntawm HPMC yog dej tuav, ua raws li thickening. Nyob rau hauv phab ntsa putty, tsuav li ntawm cov dej khaws cia yog qhov zoo, lub viscosity yog qis dua (70- ill Thaum lub viscosity tshaj 100,000, lub viscosity tsis muaj kev cuam tshuam rau cov dej khaws cia.
6. Yuav ua li cas xaiv txoj cai hydroxypropyl methylcellose (HPMC) rau cov hom phiaj sib txawv?
Daim ntawv thov ntawm phab ntsa Putty: Qhov yuav tsum tau qis dua, lub viscosity yog 100,000, nws yog qhov txaus, qhov tseem ceeb yog kom dej zoo dua. Daim ntawv thov ntawm cug: cov yuav tsum muaj, siab viscosity, muaj txiaj ntsig zoo dua 150,000, kev thov ntawm cov kua nplaum: cov khoom siv nrawm nrawm, siab viscosity.
7. Daim ntawv thov ntawm HPMC hauv phab ntsa putty, dab tsi ua rau lub phab ntsa pov tseg los tsim npuas?
HPMC ua si peb lub luag haujlwm hauv phab ntsa Putty: Thickening, dej rov qab thiab kev tsim kho. Tsis txhob koom nrog cov tshuaj tiv thaiv. Vim li cas Bubbles:
(1) Cov dej ntau dhau yog muab tso rau hauv.
(2) Hauv qab txheej tsis yog qhuav, thiab lwm txheej yog scraped rau nws, uas tseem yooj yim ua npuas ncauj.
Lub Sijhawm Post: Jan-07-2022