Hydroxypropyl Methyl Cellulose Wowiritsa

Hydroxypropyl methylcellulose amagwiritsidwa ntchito ngati zopangira kupanga mafuta, omwe amatha kumaliza shuga, kuwongolera kuchuluka kwa zopangira, kuchepetsa otsalira a gawo lapansi mu msuzi wowotchera, kuchepetsa mtengo wamankhwala amadzi onyansa, ndikupanga mawonekedwe ake. ya hydroxypropyl methylcellulose yopindulitsa Imathandiza kukhathamiritsa batch, batch ndi njira zowotchera mosalekeza, kuteteza kusokoneza minofu ndi zovuta zokhudzana ndi chikhalidwe cha dilution; Komanso zothandiza mpheto ya nayonso mphamvu njira.

Hydroxypropyl methylcellulose, cellulose yaiwisi, imatha kukhala thonje woyengedwa, kapena kukhala zamkati zamatabwa. Iyenera kuphwanyidwa isanayambe kapena panthawi ya alkalization. M`pofunika pulverize mapadi zopangira ndi mawotchi mphamvu kuti kuchepetsa crystallinity ndi polymerization digiri, kuonjezera pamwamba m`dera, ndiyeno kusintha trihydroxyl digiri ndi mankhwala anachita luso la reactant pa shuga mphete ya mapadi polima.

Ngakhale kaphatikizidwe ka hydroxypropyl methylcellulose sikovuta, alkali, zopangira zimapunthwa ndikusinthidwa kukhala alkali. Etherification, zosungunulira zosungunulira, kulekanitsa centrifugal, kutsuka ndi kuyanika m'madera osiyanasiyana, koma kumaphatikizapo matekinoloje ambiri ofunikira komanso chidziwitso chochuluka. Kwa mitundu yosiyanasiyana ya zinthu, chilengedwe chilichonse chimakhala ndi zinthu zatsopano zowongolera, monga kutentha, nthawi, kupanikizika ndi kuwongolera kwamayendedwe othandizira ndi zida zowongolera ndi chitsimikizo cha mtundu wokhazikika wazinthu, njira yodalirika yopanga, komanso yabwino.

Popeza ntchito ya hydroxypropyl methylcellulose ndi yofanana ndi ma ether ena osungunuka m'madzi, imatha kugwiritsidwa ntchito ngati filimu yopanga filimu, thickener, emulsifier ndi stabilizer mu utoto wa latex ndi nyimbo zosungunuka ndi madzi zosungunulira utomoni, kukana abrasion, ❖ kuyanika Uniform ndi kumamatira, komanso kukhazikika kwapamtunda, kukhazikika kwa ma acid ndi maziko, komanso kugwirizana ndi utoto wazitsulo. Hydroxypropyl methylcellulose imakhala ndi zotsatira zabwino ngati zokhuthala za utoto woyera wa polyvinyl acetate. Mlingo wa m'malo mwa cellulose ether ndi bwino, ndipo kukana mabakiteriya kumakhalanso bwino.