Maydhaaf-ka-dambaysta ma tahay?

Hindisada, oo sidoo kale loo yaqaan hydroxypropyl methylcelrelose (HPMC), waa polyver semyytherate-ka oo laga helo celyulose, polymder dabiici ah oo laga helay darbiyada unugyada ee dhirta. In kasta oo unugyadu ay dabiici tahay, geedi socodka wax laga beddelo si loo abuuro hypromellosepose waxaa ka mid ah falcelinta kiimikada, taas oo ka dhigeysa in sicir-bararka isku-darka semisject.

Soosaarka hypromellose wuxuu ku lug leeyahay daaweynta cellulose oo leh prempynene iyo methyl chloride si uu u soo bandhigo hydroxpropyl iyo kooxaha methyl-ka ee laf-dhabarka laf-dhabarka. Beddelkan ayaa beddelaya sifooyinka unugyada unugyada, iyadoo la siinayo hypromellose astaamaha u gaarka ah sida silsiladaha biyaha, awoodda qaab-dhismeedka filimka, iyo viscosity.

In kasta oo hypromellose si toos ah looguma helin dabiicadda, waxaa laga soo qaatay isha dabiiciga ah (cellulose) waxaana loo arkaa biocomple iyo noolaha. Waxaa si weyn loogu isticmaalaa dawooyinka, alaabada cuntada, waxyaabaha la isku qurxiyo, iyo codsiyo warshadeed oo kala duwan awgood nabadgelyadooda, iyo kartidooda, iyo waxqabadka.

Marka la soo koobo, halka dhiig-karka 'hypromellose' waa xarun semisjectic, asal ahaan ka timid celyulose, polymer dabiici ah, iyo saliidda dabiiciga ah ayaa ka dhigaya qayb si ballaaran loo aqbalo codsiyada kala duwan ee la aqbalo.