Habka kala dirida Hydroxypropyl methylcellulose (HPMC):

Marka alaabada hydroxypropyl methylcellulose (HPMC) si toos ah loogu daro biyaha, way xinjireen ka dibna way milmi doonaan, laakiin milankani waa mid gaabis ah oo adag. Waxaa jira saddex qaab oo la soo jeediyay oo kala diri ah hoosta, isticmaalayaashuna waxay dooran karaan habka ugu habboon iyadoo loo eegayo isticmaalkooda:

1. Habka biyaha kulul: Maadaama hydroxypropyl methylcellulose (HPMC) aysan ku milmin biyaha kulul, marxaladda bilowga ah ee hydroxypropyl methylcellulose (HPMC) ayaa si siman loogu kala firdhi karaa biyaha kulul, ka dibna marka la qaboojiyo, saddex Habka caadiga ah ayaa lagu sifeeyaa. soo socota:

1). Ku rid inta loo baahan yahay ee biyaha kulul weelka oo kuleyl ilaa 70 ° C. Si tartiib ah ugu dar hydroxypropyl methylcellulose (HPMC) si tartiib tartiib ah u walaaq, hydroxypropyl methylcellulose (HPMC) wuxuu bilaabaa inuu ku dul sabeeyo biyaha dushiisa, ka dibna si tartiib ah u samee slurry, qabooji slurry hoos walaaqaya .

2). Kuleyli 1/3 ama 2/3 (qadarka loo baahan yahay) ee biyaha weelka oo kuleyl ilaa 70 ° C. Marka loo eego habka 1), kala firdhi hydroxypropyl methylcellulose (HPMC) si aad u diyaariso slurry biyaha kulul; Dabadeed ku dar inta hadhay ee biyo qabow ama biyaha baraf weelka, ka dibna ku dar kuwa kor ku xusan ee hydroxypropyl methylcellulose (HPMC) biyaha kulul biyaha qabow, oo walaaq, ka dibna qabooji isku dar ah.

3). Ku dar 1/3 ama 2/3 qiyaasta biyaha loo baahan yahay weelka ku shub oo kuleyl ilaa 70 ° C. Marka loo eego habka 1), kala firdhi hydroxypropyl methylcellulose (HPMC) si aad u diyaariso slurry biyaha kulul; Inta soo hartay ee biyo qabow ama baraf ah ayaa markaa lagu daraa slurry biyaha kulul iyo isku dar ah waa la qaboojiyey ka dib marka la walaaqo.

2. Habka isku dhafka budada: Qaybaha budada hydroxypropyl methylcellulose (HPMC) iyo qadar siman ama ka badan oo ah maaddooyinka kale ee budada ah ayaa si buuxda loogu kala firdhiyey isku-dhafka qallalan, ka dibna lagu milmo biyaha, ka dibna hydroxypropyl methylcellulose Base cellulose (HPMC) waa la kala diri karaa iyada oo aan la kicin. . 3. Habka qoynta dareeraha dabiiciga ah: horay u kala firdhi ama qoyan hydroxypropyl methylcellulose (HPMC) oo leh dareerayaasha organic sida ethanol, ethylene glycol ama saliid, ka dibna ku milmi biyo. Waqtigaan, hydroxypropyl methylcellulose (HPMC) sidoo kale si habsami leh ayaa loo milmi karaa.