Halkee bay ka timaadaa hydroxypropyl methylcellulose?

Hydroxypropyl methylcellulose (HPMC) waa polymer synthetic oo ka soo jeeda cellulose, kaas oo ah polymer organic si dabiici ah u soo baxa kaas oo sameeya derbiyada unugyada dhirta. HPMC waxa lagu sameeyaa iyada oo si kiimiko ah wax uga beddeleysa cellulose iyada oo loo marayo hab loo yaqaan etherification.

Etherification, cellulose waxaa lagu daaweeyaa isku dar ah propylene oxide iyo methyl chloride hoos xaaladaha la xakameeyey si loo soo saaro hydroxypropyl cellulose (HPC). HPC ayaa markaa wax laga beddelay iyadoo lagu daaweeyay methanol iyo hydrochloric acid si loo soo saaro HPMC.

Wax soo saarka HPMC ee ka soo baxay waa biyo-milmi kara, polymer-ka aan-ionic ahayn kaas oo leh sifooyin badan oo faa'iido leh, sida haynta biyaha sare, kartida samaynta filimaanta wanaagsan, iyo dhumuc weyn iyo sifooyin xasilinta. Guryahani waxay HPMC ka dhigaan wax lagu daro waxtarka leh ee codsiyada kala duwan, sida qalabka dhismaha, daawooyinka, iyo alaabta cuntada.

Halka HPMC laga soo qaatay cellulose, waa polymer synthetic kaas oo lagu soo saaro hannaan kiimiko oo adag.