Focus on Cellulose ethers

Makhalidwe a Hydroxypropyl methylcellulose (HPMC).

Makhalidwe a Hydroxypropyl methylcellulose (HPMC).

Chogulitsacho chimaphatikiza zinthu zambiri zakuthupi ndi zamankhwala kuti zikhale chinthu chapadera chomwe chimagwiritsidwa ntchito kangapo, ndipo mawonekedwe ake ndi awa:

(1) Kusunga madzi: Imatha kusunga madzi pamalo otsekeka monga matabwa a simenti ndi njerwa.

(2) Kapangidwe ka filimu: Itha kupanga filimu yowonekera, yolimba komanso yofewa yokhala ndi mafuta abwino kwambiri.

(3) Organic solubility: Mankhwalawa amasungunuka mu zosungunulira za organic, monga ethanol/madzi, propanol/madzi, dichloroethane, ndi zosungunulira zomwe zimapangidwa ndi zosungunulira ziwiri za organic.

(4) Gelation yotentha: Pamene njira yamadzimadzi ya mankhwala itenthedwa, imapanga gel osakaniza, ndipo gel opangidwa adzakhala yankho kachiwiri pambuyo kuzirala.

(5) Ntchito yapamtunda: Perekani ntchito zapamtunda mu yankho kuti mukwaniritse emulsification yofunikira ndi colloid yoteteza, komanso kukhazikika kwa gawo.

(6) Kuyimitsidwa: Kungathe kulepheretsa mpweya wa tinthu tating'onoting'ono, motero kulepheretsa mapangidwe a matope.

(7) Colloid yodzitchinjiriza: imatha kuletsa madontho ndi tinthu ting'onoting'ono kuti tisagwirizane kapena kukhazikika.

(8) Zomatira: Zimagwiritsidwa ntchito ngati zomatira popangira utoto, fodya, ndi zopangidwa ndi mapepala, zimakhala ndi ntchito yabwino kwambiri.

(9) Kusungunuka kwamadzi: Chogulitsacho chimatha kusungunuka m'madzi mosiyanasiyana, ndipo ndende yake yayikulu imangokhala ndi viscosity.

(10) Kusakhazikika kwa ionic: Chopangidwacho ndi ether yosakhala ionic cellulose, yomwe sagwirizana ndi mchere wachitsulo kapena ma ion ena kuti apange madzi osasungunuka.

(11) Kukhazikika kwa acid-base: koyenera kugwiritsidwa ntchito mkati mwa PH3.0-11.0.

(12) Zosakoma komanso zopanda fungo, zosakhudzidwa ndi metabolism; amagwiritsidwa ntchito ngati zowonjezera zakudya ndi mankhwala, sizidzasinthidwa muzakudya ndipo sizipereka zopatsa mphamvu.


Nthawi yotumiza: May-19-2023
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