I-Hydroxypropyl methylcellulose, i-28-30% ye-methoxyl, i-7-12% ye-hydroxypropyl

Iinkcukacha "28-30% methoxyl" kunye "7-12% hydroxypropyl" zibhekiselele kwiqondo lokufakela endaweniHydroxypropyl Methylcellulose(HPMC). Ezi xabiso zibonisa ubungakanani bepolymer yokuqala ye-cellulose iguqulwe ngamachiza kunye namaqela e-methoxyl kunye ne-hydroxypropyl.

1. 28-30% Methoxyl:
   • Oku kubonisa ukuba, ngokomyinge, i-28-30% yamaqela e-hydroxyl yasekuqaleni kwi-molecule ye-cellulose ifakwe endaweni yamaqela e-methoxyl. Amaqela e-Methoxyl (-OCH3) aqaliswa ukwandisa i-hydrophobicity ye-polymer.
2. 7-12% iHydroxypropyl:
   • Oku kuthetha ukuba, ngokomyinge, i-7-12% yamaqela e-hydroxyl yoqobo kwi-molecule ye-cellulose ifakwe endaweni yamaqela e-hydroxypropyl. Amaqela e-Hydroxypropyl (-OCH2CHOHCH3) aziswa ukuphucula ukunyibilika kwamanzi kunye nokuguqula ezinye iimpawu ezibonakalayo kunye neekhemikhali zepolymer.

Iqondo lokutshintsha liphembelela iipropati ze-HPMC kunye nokusebenza kwayo kwizicelo ezahlukeneyo. Umzekelo:

• Umxholo ophezulu we-methoxyl ngokubanzi wongeza i-hydrophobicity ye-polymer, echaphazela ukunyibilika kwayo emanzini kunye nezinye iimpawu.
• Umxholo ophezulu we-hydroxypropyl unokuphucula ukunyibilika kwamanzi kunye neepropati zokwenza ifilimu ye-HPMC.

Ezi nkcukacha zibalulekile ekulungiseleleni i-HPMC ukuhlangabezana neemfuno ezithile kumashishini ahlukeneyo. Ngokomzekelo, kwishishini loxubo mayeza, ukhetho lwebakala le-HPMC elinamaqondo athile okutshintsha kunokuchaphazela iiprofayili zokukhutshwa kwechiza kuqulunqo lwethebhulethi. Kushishino lokwakha, lunokuchaphazela ukugcinwa kwamanzi kunye neempawu zokubambelela kwiimveliso ezisekelwe kwisamente.

Abavelisi bavelisa amabanga ahlukeneyo e-HPMC ngamaqondo ahlukeneyo okutshintshwa ukuze kuhlangatyezwane neemfuno ezahlukeneyo zezicelo ezahlukeneyo. Xa usebenzisa i-HPMC ekuxutyweni, kubalulekile ukuba abaqulunqi baqwalasele ibakala elithile le-HPMC elihambelana neempawu ezifunwayo kunye neempawu zokusebenza kwisicelo esicetywayo.