I-HydroxyPOpyl Methyl Selelose (i-HPMC), ekwaziwa ngokuba yi-HomePllose, yi-polymer ye-polymer ethathwe kwi-sellyulose yendalo. Owona mthombo we-seluplose yemveliso ye-HPMC iqhele i-pulp okanye umqhaphu. Inkqubo yokwenziwa ibandakanya ukuguqula imichiza kwi-selupilose nge-EUREASE, yazisa i-hydroxypropy ye-hydroxyl kunye namaqela e-methyl kwi-selsulose i-selbone.

Ukuveliswa kwe-HPMC kubandakanya amanyathelo aliqela:

1. Ukukhutshwa kweSeluplose:
   • I-selsulose ifunyenwe kwimithombo yezityalo, ngokuyintloko i-pulp okanye umqhaphu. I-selsulose ikhutshelwe kwaye ihlanjululwe kwiFomu yeSeluplose.
2. I-Alkalition:
   • I-selselose ipulp iphathwa ngesisombululo se-alkaline, idla ngokuhamba nge-sodium hydroxide (i-nah), ukwenza amaqela e-hydroxyl kwikhonkco leselselose.
3. I-ether:
   • Isiqinisekiso selona nqanaba liphambili kwimveliso ye-HPMC. I-alkal selsulose iphinde inikwe i-propylene oxide (ye-hydroxypropy) kunye ne-methyl chloride (yamaqela e-methyl) ukwazisa la maqela e-Eletbose.
4. Ukungathathi cala kunye nokuhlamba:
   • Isiphumo seSellUXOES eguqulweyo, ngokuyi-hydroxypropyl methyl sellise, phantsi kwenkqubo yokungathathi hlangothi ukususa nayiphi na ialkali eseleyo. Ihlanjululwe ngokupheleleyo ukuba isuse ukungcola kunye neemveliso.
5. Ukomisa kunye nokugaya:
   • I-sellulose eguqulweyo yomisiwe isusa umswakama ogqithisileyo kwaye iphinde igcinwe kumgubo ocolekileyo. Ubungakanani bentsundu bunokulawulwa ngokusekwe kwisicelo esicetywayo.

Imveliso ye-HPMC ye-HPMC ngumgubo omhlophe okanye ongekho mhlophe-omhlophe onamanqanaba ahlukeneyo e-hydroxypropy kunye ne-methyl. Ipropathi ethile ye-HPMC, enjengokuthoba kwalo, i-viscosity, kunye nezinye iimpawu zentsebenzo, zixhomekeka kwinqanaba lokufakwa endaweni kunye nenkqubo yokwenziwa.

Kubalulekile ukuba uqaphele ukuba i-HPMC yi-polymer ye-semi-syber, kwaye ngelixa ivela kwi-selsolose yendalo, iqhubeka nokulungiswa kwezemikhali ngexesha lenkqubo yokufezekisa iipropathi zayo ezinqwenelekayo zezicelo zophuhliso.