Momwe Mungadziwire Ash Zomwe za Hydroxypropyll No Methylcellulose?

Phulusa ndi chizindikiro chofunikira chahydroxypypyl methylcellulose. Makasitomala ambiri nthawi zambiri amafunsa akamvetsetsa hydroxypropyl methylcelulose: Kodi mtengo wake ndi chiyani? Hydroxypropyl methylcelulose ndi phulusa laling'ono limatanthawuza kukhala oyera kwambiri; Cellulouse ndi phulusa lalikulu limatanthawuza kuti pali zodetsa zambiri mmenemo, zomwe zingakhudze kugwiritsa ntchito kapena kuwonjezera kuchuluka kwa zowonjezera. Makasitomala akasankha hydroxpyl methylcellulose, nthawi zambiri amayatsa mwachindunji kuti cellose ndi moto ndikuwotcha kuti ayese phula la cellulose. Koma njira iyi ndiyosayansi kwambiri, chifukwa opanga ambiri opanga zithandizirani ma cellulose. Pamwambapa, cellulose ili ndi phulusa pang'ono atayaka, koma pochita, kusungidwa kwamadzi kwa hydroxypylluphyl methylcellulose sibwino.

Ndiye tiyenera kudziwa bwanji molondola phulusa la hydroxypropyl? Njira yolondola ndikugwiritsa ntchito ng'anjo ya muffle kuti mudziwe.

Chida chowunikira bwino, kutentha kwambiri kwa nyundo, ng'anjo yamagetsi.

Yesani Kuyesa:

1) Choyamba, yikani 30ml Porcein mu ntchentche kwambiri ndikuwotcha (500 ~ 600) ° C kwa mphindi 30, tsekani chipata cha ndulu kuti muchepetse kutentha kwa 200 ° C, ndiye tengani Opatuka ndi kusuntha kwa desictor kuti muzizirira (20 ~ 30) min, zolemera.

2) imalemera 1.0 ghydroxypypyl methylcellulosePamalo owunikira, ikani zitsanzo zolemedwazo, ndiye ikani chipongwe chomwe chili ndi chiwonetsero chamagetsi cha mpweya, onjezerani kutentha kwa ma sulboration, 0.5-1.0) ml, ndikuyika pa ntchentche yamagetsi ya mapangidwe athunthu. Kenako pitani mpaka kutentha kwambiri, kuwotcha (500 ~ 600) ℃ kwa ola limodzi, pomwe kutentha kwa kutentha kwapamwamba kwa 200 ℃ Kuzizira (20 ~ 30) min, kenako ndikuyeza motsimikiza.

Kuwerengera Kuyatsa Kutalika kumawerengeredwa malinga ndi formula (3):

m2-m1

Kuyatsa Zotsalira (%) = × 100 ........................................... (3)

m

Mu fomula: m1 - unyinji wa wopanda kanthu, mu g;

M2 - Zambiri zatsalira komanso chopachika, mu g;

m - unyinji wa zitsanzo, mu g.