Kws khaws cia

Kws khaws cia

HydroxyPropyyl methylcellose HPMCPuas muaj ntau lub hom phiaj tshuaj uas muaj kev zam uas tuaj yeem siv ua cov tuab tuab, tawg, emulsifier thiab zaj duab xis-ua tus neeg sawv cev. Ua hauv cov tshuaj ntsiav tshuaj zaj duab xis txheej, cov nplaum, tuaj yeem txhim kho cov kev sib cais ntawm cov tshuaj tuaj yeem txhim kho cov tshuaj waterproof. Tsis tas li raws li kev ncua, ophthalmic npaj, tswj tso tawm cov yeeb yaj kiab xws li pob txha pob txha thiab ntab tov khoom. HPMC thiab lwm yam hluavtaws thiab tshuaj colloidal khi, thiab lwm yam khoom siv cov khoom siv roj av thiab lwm yam khoom siv tau dhau los ua cov khoom siv HPMC.

Yog hydroxypropyl methylcellulose toxic?

Lub FDA pom nws yog cov tsis muaj tshuaj lom thiab tsis muaj kev sib zog tsis muaj zog uas muaj kev nyab xeeb rau tib neeg kev siv thiab kev noj haus.

Puas yog hypromellose muaj kev nyab xeeb rau lub qhov muag?

Hypromellose yuav tsum tsis txhob siv thaum hnav cov lenses no. Cov lo ntsiab muag yuav tsum tau muab tshem tawm ua ntej kev ua tiav ntawm cov tee thiab tsis rov ua dua ua ntej 15 feeb tom qab siv. Benzalkonium chloride tau tshaj tawm tias yuav ua rau qhov muag khaus, cov tsos mob ntawm qhuav qhov muag thiab tuaj yeem cuam tshuam rau lub kua muag zaj duab xis thiab corneal nto.

HydroxyPropy cellulose tau siv ua cov matrix, cov nplaum, cov khoom siv thav duab, cov duab ua ke, cov khoom siv txheej txheej. Tsis tas li ntawd, nws tau siv dav hauv kev txhim kho cov qauv tshiab, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov khoom siv kom tso tawm, cov khoom siv kom cov khoom siv tau, ophthalmic npaj thiab Kev pab them-tso tawm.

Ntxheej HPM cov khoom tuaj yeem txhim kho los ntawm cov khoom hauv qab no hauv cov khoom khaws cia:

· Ib tug me soluble hauv dej thiab volatilized los ntawm cov kuab tshuaj, HPMC ua pob tshab zaj duab xis nrog lub zog siab tensile lub zog.

· Ua kom tau txais lub hwj chim loj.

Hydrophilic matrix siv nrog HPMC hydrates los tsim cov txheej gel, tswj cov qauv tshuaj tso tawm.