1. Astaamaha hydroxyethyl cellulose
Alaabtani waa caddaan ama iftiin huruud ah oo aan lahayn ur iyo budo qulqulaya oo sahlan, 40 heerka shaandhada mesh ≥99%; heerkulka jilicsanaanta: 135-140 ° C; cufnaanta muuqata: 0.35-0.61g/ml; heerkulka burburka: 205-210 ° C; xawaaraha gubanaya tartiib; heerkulka dheellitirka: 23 ° C; 6% at 50%rh, 29% at 84%rh.
Waxay ku milmi kartaa biyaha qabow iyo biyaha kulul labadaba, iyo guud ahaan aan lagu milmin inta badan dareerayaasha dabiiciga ah. Viscosity-ku wax yar ayuu isu beddelaa inta u dhaxaysa qiimaha PH 2-12, laakiin mawgu wuu yaraadaa wixii ka baxsan xadkan.
2. Guryaha muhiimka ah
Sida surfactant aan-ionic ahayn,hydroxyethyl cellulosewaxay leedahay sifooyinka soo socda marka lagu daro dhumuc, laalitaan, xidhidh, sabbayn, filim samaynta, kala firdhinta, kaydinta biyaha iyo bixinta kolloid ilaalin ah:
1. HEC waxay ku milmaysaa biyo kulul ama biyo qabow, oo kuma soo da'aan heerkulka sare ama karkarinta, taas oo ka dhigaysa inay leedahay noocyo kala duwan oo milmayn ah, sifooyinka viscosity iyo gelation non-thermal.
2. Waa non-ionic oo waxay la noolaan kartaa tiro balaadhan oo ah polymers kale oo biyo-milmi kara, surfactants, iyo cusbo. Waa dhumuc weyn oo kolloidal ah oo loogu talagalay xalalka korantada ee xoogga leh.
3. Awoodda haynta biyuhu waxay laban laab ka badan tahay tan methyl cellulose, waxayna leedahay nidaaminta qulqulka wanaagsan.
4. Marka la barbar dhigo methyl cellulose ee la aqoonsan yahay iyo hydroxypropyl methyl cellulose, HEC waxay leedahay awoodda kala firdhisan ee ugu xun, laakiin awoodda kolloid ee ugu xooggan.
3. Isticmaalka hydroxyethyl cellulose
Guud ahaan loo isticmaalo sida dhumucyada, wakiilada ilaalinta, xabagta, stabilizers iyo lagu daro diyaarinta emulsions, jellies, boomaatada, looshannada, nadiifinta indhaha, suppositories iyo kiniiniyada, iyo sidoo kale loo isticmaalo sida jel hydrophilic, qalabka qalfoofka, Waxaa loo isticmaali karaa in lagu diyaariyo matrix- nooca diyaarinta sii-deynta joogtada ah, iyo sidoo kale waxaa loo isticmaali karaa xasiliye ahaan cuntada.
Waqtiga boostada: Dec-27-2022