6 FAQs txog HPMC

Nov yog 6 nqe lus nug nquag nug (FAQs) txog Hydroxypropyl Methylcellulose (HPMC) nrog rau lawv cov lus teb:

1. HPMC yog dab tsi?

Teb: HPMC, los yog Hydroxypropyl Methylcellulose, yog ib tug semi-synthetic polymer muab los ntawm cellulose.Nws yog tsim los ntawm kev kho cellulose nrog propylene oxide thiab methyl chloride.HPMC yog dav siv nyob rau hauv ntau yam lag luam rau nws thickening, khi, zaj duab xis-forming, thiab dej tuav cov khoom.

2. Cov ntawv thov tseem ceeb ntawm HPMC yog dab tsi?

Teb: HPMC pom cov ntawv thov hauv ntau qhov kev lag luam, suav nrog tshuaj, khoom siv, khoom siv tu tus kheej, zaub mov, xim thiab txheej, thiab textiles.Qee cov ntawv siv xws li cov ntsiav tshuaj coatings, cov nplaum nplaum, cov tshuaj nplaum thiab cov tshuaj pleev ib ce, cov khoom noj khoom haus ntxiv, cov xim pleev xim, thiab cov khoom siv textile.

3. Dab tsi yog qhov txiaj ntsig ntawm kev siv HPMC hauv cov khoom siv?

Teb: Hauv cov ntaub ntawv tsim kho, HPMC ua haujlwm ua tus neeg saib xyuas dej, thickener, binder, thiab rheology modifier.Nws txhim kho kev ua haujlwm, adhesion, thiab durability ntawm cov khoom cementitious xws li mortars, renders, grouts, thiab pobzeb adhesives.HPMC pab tiv thaiv kom tsis txhob shrinkage, tawg, thiab sagging, thaum tseem txhim khu kev txhim kho lub zog thiab nto tiav.

4. Puas yog HPMC muaj kev nyab xeeb rau kev siv tshuaj thiab cov khoom tu tus kheej?

Teb: Yog, HPMC raug suav hais tias muaj kev nyab xeeb rau kev siv tshuaj, khoom siv tu tus kheej, thiab daim ntawv thov zaub mov.Nws yog non-toxic, non-irritating, thiab hypoallergenic, ua rau nws haum rau tshuaj pleev, qhov ncauj, thiab edible formulations.HPMC tau pom zoo los ntawm cov koom haum tswj hwm xws li FDA (US Food and Drug Administration) thiab EFSA (European Food Safety Authority) rau siv ntau yam kev siv.

5. HPMC siv li cas hauv cov tshuaj ntsiav tshuaj?

Teb: Nyob rau hauv cov ntsiav tshuaj formulations, HPMC pab raws li ib tug binder, disintegrant, thiab tswj-tso tus neeg saib xyuas.Nws txhim kho cov ntsiav tshuaj hardness, friability, thiab dissolution tus nqi, thaum tseem muab uniformity ntawm ntau npaum thiab txhim khu kev xa tshuaj.HPMC feem ntau yog siv ua ke nrog lwm cov khoom siv los ua kom cov ntsiav tshuaj zoo thiab kev ua haujlwm zoo.

6. Dab tsi yuav tsum xav txog thaum xaiv HPMC rau ib daim ntawv thov tshwj xeeb?

Teb: Thaum xaiv HPMC rau ib daim ntawv thov tshwj xeeb, yam uas yuav tsum tau xav txog suav nrog qhov xav tau viscosity, dej tuav, cov khoom ua yeeb yaj kiab, pH stability, thiab kev sib raug zoo nrog lwm cov khoom xyaw.Qib ntawm HPMC (piv txwv li, qib viscosity, particle loj) yuav tsum raug xaiv raws li qhov yuav tsum tau ua ntawm kev tsim thiab cov yam ntxwv ntawm kev ua tau zoo.Tsis tas li ntawd, kev txiav txim siab txog kev txiav txim siab thiab cov khoom tshwj xeeb yuav tsum raug coj mus rau hauv tus account thaum xaiv HPMC rau kev siv tshuaj, zaub mov, thiab lwm yam kev cai.