Habka kala dirista Hydroxypropyl methylcellulose HPMC

Hydroxypropyl methylcellulose, oo sidoo kale loo yaqaan HPMC, waa cellulose ether aan ionic ahayn oo laga helo cudbi la safeeyey, oo ah walxo polymer dabiici ah, iyada oo loo marayo taxane habab kiimiko ah. Waa budo cad ama huruud yar oo si fudud ugu milmi karta biyaha. Aan ka hadalno habka kala dirista ee hydroxypropyl methylcellulose.

1. Hydroxypropyl methylcellulose waxaa inta badan loo isticmaalaa sidii wax lagu daro budada putty, hoobiye iyo xabag. Marka lagu daro hoobiye sibidh ah, waxaa loo isticmaali karaa sidii walax biyaha celiya iyo wax celin kara si loo kordhiyo bamgareynta; marka lagu daro budada putty iyo xabagta, waxaa loo isticmaali karaa sidii qalab xidhmo. Si loo hagaajiyo faafinta iyo in la kordhiyo waqtiga shaqada, waxaan tusaale u soo qaadaneynaa Qingquan Cellulose si aan u sharaxno habka kala dirista ee hydroxypropyl methylcellulose.

2. hydroxypropyl methylcellulose-ka caadiga ah marka hore waa la walaaqaa oo lagu kala firdhiyaa biyo kulul, ka dibna waxaa lagu daraa biyo qabow, la walaaqaa oo la qaboojiyaa si uu u milmo;

Gaar ahaan: qaado 1/5-1/3 oo ah xaddiga biyaha kulul ee loo baahan yahay, walaaq ilaa badeecada lagu daray ay gebi ahaanba bararto, ka dibna ku dar qaybta hartay ee biyaha kulul, kuwaas oo noqon kara biyo qabow ama xitaa biyo baraf ah, oo ku walaaq heerkulka ku habboon (10°C) ilaa ay gebi ahaanba milmaan.

3. Habka qoynta dareeraha dabiiciga ah:

Ku kala firdhi hydroxypropyl methylcellulose dareere dabiici ah ama ku qoyso dareere dabiici ah, ka dibna ku dar ama ku dar biyo qabow si ay si fiican ugu milmaan. Dareeraha dabiiciga ah wuxuu noqon karaa ethanol, ethylene glycol, iwm.

4. Haddii isku-darka ama duubista ay dhacdo inta lagu jiro kala-baxa, waxaa sabab u ah in walaaqku uusan ku filnayn ama qaabka caadiga ah si toos ah loogu daro biyo qabow. Waqtigan, si dhakhso ah u walaaq.

5. Haddii xumbo la sameeyo inta lagu jiro kala dirida, waxaa loo dayn karaa 2-12 saacadood (waqtiga gaarka ah wuxuu ku xiran yahay isku dheelitirka xalka) ama waxaa laga saari karaa faakiyuum, cadaadis, iwm., ama lagu darayaa xaddi ku habboon oo ah walax ka saarta wasakhda.

Ka taxadaritaan

Hydroxypropyl methylcellulose waxa loo qaybiyaa noocyo si tartiib ah u milma iyo kuwo si degdeg ah u milma. Hydroxypropyl methylcellulose degdeg ah waxaa si toos ah loogu milmi karaa biyo qabow.