Udindo wa cellulose mu matope okha

Cellulose ether ndi mawu angapo kuti mupange zinthu zingapo zomwe zimapangidwa ndi alkali cellulose ndikumupeza wothandizika pazinthu zina. Ma cellulose amasinthidwa ndi othandizira osiyanasiyana kuti apeze cellulose yosiyanasiyana. Malinga ndi ma ionization katundu wa magalimoto, cellulose edel amatha kugawidwa m'magulu awiri: Ionic (monga carboxymethyl cellulose). Malinga ndi mtundu wa gawo lamitundu yamitundu itha kugawidwa mu monoether (monga methyl cellulose) ndi ethersed ether (monga hydroxypropyl celyiluse). Malinga ndi kusungunuka kosiyanasiyana, imatha kugawidwa m'madzi (monga hydrothyl cellulose) ndi matope osungunuka ndi ethyl cellulose.

Chuma chitatha matope chitasungunuka m'madzi, kufalitsa ndi fanizo lothandiza ndi yunifolomu komanso la cellouse, komanso collol "yoteteza, ndipo imaphimba panja. Pangani filimu yopaka, kupanga matopewo kukhala khola

Chifukwa cha kapangidwe kake kake, exuluse yothetsera madzi imapangitsa madzi muzomwe sizivuta kutaya, ndipo pang'onopang'ono zimasiya nthawi yayitali, kusiya matope ndi kusungidwa kwa madzi ndi kugwirira ntchito.

Matope odzilimbitsa okha a simenti, wokhala ndi ma viscrance otsika hydroxypyll a methylcellulose ether. Popeza malo onsewo amalepheretsa pang'ono polowererapo kwambiri ndi ogwira ntchito zomangamanga, poyerekeza ndi njira yosinthira ya m'mbuyomu, kuthwa ndi liwiro lomanga kumayendetsedwa bwino kwambiri. Nthawi yodzichepetsera yodzichepetsera imagwirizanitsa mwayi wa madzi abwino a hydroxypropyl methylcellulose. Popeza kudzidalira kumafuna kuti mtembowo ukhale ndi malire pokhapokha, zinthu zamadzi ndi zazikulu. Pambuyo poti kuwonjezera HPMC, idzawongolera nthaka yosungira madzi sidziwika, yomwe imapangitsa mphamvu yamphamvu pambuyo pouma, ndipo shrinkage ndi yaying'ono, yomwe imachepetsa ming'alu. Kuphatikiza kwa HPMC kumaperekanso ma visucker, omwe angagwiritsidwe ntchito ngati thandizo lotsutsa, kuwonjezera madzimadzi ndi kuponderezedwa, ndikusintha mphamvu yakuchotsa pansi.

Cellulose yabwino ili ndi mawonekedwe owoneka bwino komanso kachulukidwe kakang'ono kwambiri. HPMC yoyera ili ndi kuyera kwabwino, zinthu zopangira zopangidwa ndizoyera, zomwe zimakhala zopanda pake komanso zopanda pake, mankhwalawa ndizomveka, ndipo palibenso ammonia. Kulawa, fibrous pansi pa maikulosikopu kapena galasi lakukulitsa.