Ijeli yeHPMC

I-Hydroxypropyl methylcellulose (HPMC) luhlobo lwe-ether ye-cellulose esetyenziswa kwiintlobo ezahlukeneyo zezicelo, kubandakanywa njenge-gelling agent, i-thickener, i-emulsifier, i-stabilizer, kunye ne-agent yokumisa. Yipolymer enyibilikayo emanzini ephuma kwiselulosi, kwaye ihlala isetyenziswa ekutyeni, kumayeza, nakwiimveliso zokuthambisa. I-HPMC ikwasetyenziselwa ukwenza iijeli, eziziinkqubo ezizii-semi-solid ezenziwe ngolwelo olusasazwe kwi-matrix eqinileyo. Iijeli zeHPMC zisetyenziswa kwizicelo ezahlukeneyo, kubandakanya ukuhanjiswa kweziyobisi, izinto zokuthambisa, kunye neemveliso zokutya.

Iijeli ze-HPMC zenziwe xa i-HPMC inyibilika kwisinyibilikisi, njengamanzi. Njengoko isisombululo sipholile, iimolekyuli ze-HPMC zenza inethiwekhi ebamba i-solvent, yenze ijeli. Iimpawu zejeli zixhomekeke kugxininiso lwe-HPMC, uhlobo lwe-solvent, kunye nobushushu. Iigels ezenziwe kwi-HPMC zikholisa ukucaca kwaye zinokufana okufana nejeli.

Iijeli zeHPMC zingasetyenziswa kwizicelo ezahlukeneyo. Kumashishini axuba amayeza, iijeli ze-HPMC zisetyenziselwa ukuhambisa amayeza emzimbeni. Ijeli inokuqulunqwa ukukhulula iyeza kwithuba lexesha, ivumela ukuhanjiswa kwechiza okuzinzileyo. Iijeli zeHPMC zikwasetyenziswa kwizinto zokuthambisa, ezifana neloshini kunye neekhrimu, ukunika ukuthungwa okugudileyo, okukhrimu. Kwiimveliso zokutya, iijeli zeHPMC zisetyenziswa njengezinto ezityebisayo kunye nezizinzisi.

Iijeli ze-HPMC zineenzuzo ezininzi ngaphezu kwezinye ii-agent ze-gelling. Azinatyhefu, azicaphukisi, kwaye ziyabola. Zikwalula ukuzisebenzisa kwaye zinokuqulunqwa ukuhlangabezana neemfuno ezithile. Iijeli ze-HPMC nazo zizinzile kuluhlu olubanzi lwamaqondo obushushu kunye namanqanaba e-pH.

Ngaphandle kwezi nzuzo, kukho ezinye iingxaki ekusebenziseni iijeli ze-HPMC. Abiza kakhulu kunezinye ii-agent agent, kwaye kunokuba nzima ukunyibilika kwezinye izinyibilikisi. Ukongezelela, iijeli ze-HPMC azinamandla njengamanye ama-gelling agents, kwaye ziyakwazi ukuthambekela kwi-syneresis (ukwahlulwa kwejeli kwisigaba solwelo kunye nesigxina).

Ngokubanzi, iijeli ze-HPMC sisixhobo esiluncedo kwiintlobo ezahlukeneyo zezicelo. Azinatyhefu, azicaphukisi, kwaye ziyakwazi ukubola, kwaye zinokuqulunqwa ukuhlangabezana neemfuno ezithile. Nangona kunjalo, zibiza kakhulu kunezinye ii-agelling agents, kwaye kunokuba nzima ukunyibilika kwezinye izinyibilikisi. Ukongezelela, abanamandla njengamanye ama-gelling agents, kwaye banokuthi baxhomekeke kwi-syneresis.