Kazhinji kutaura, viscosity yehydroxypropyl methylcellulose yakakwira. Nekudaro, zvinoenderanawo nehuwandu hwekutsiva uye avhareji yedhigirii rekutsiva. Hydroxypropyl methyl cellulose ndeye-non-ionic cellulose ether, chitarisiko chichena chehupfu, chisina kunhuhwirira uye chisina kunaka, chinonyungudika mumvura uye yakawanda polar organic solvents uye chikamu chakakodzera che ethanol / mvura, propanol / mvura, dichlorethylene Iyo isinganyungudika mu alkanes, acetone, uye absolute ethanol, uye inozvimba kuita yakajeka kana zvishoma turbid colloidal solution mumvura inotonhora. Iyo aqueous solution ine chiitiko chepamusoro, inoumba firimu rakatetepa mushure mekuoma, rinoita shanduko inodzoreredzwa kubva kune sol kuenda kune gel mukutevedzana pakudziya uye kutonhora. Kujeka kwepamusoro uye kushanda kwakagadzikana.
Hydroxypropyl methylcellulose ine pfuma yekupisa gelation. Mushure mokunge mhinduro yemvura yechigadzirwa ichipisa, inoumba gel uye inonaya, uye inopera mushure mekutonhora. Iyo tembiricha yegelation yemhando dzakasiyana dzakasiyana. Solubility inosiyana ne viscosity. Iyo yakaderera viscosity, iyo yakakura solubility. Izvo zvimiro zvehydroxypropyl methylcellulose zvine zvirevo zvakasiyana zvakasiyana. Kunyungudika kwehydroxypropyl methylcellulose mumvura hakukanganiswe neiyo pH kukosha.
Zvimiro: Iyo ine hunhu hwekukora kugona, kubuda munyu, kugadzikana kwePH, kuchengetwa kwemvura, kugadzikana kwedimensional, yakanakisa firimu-inogadzira pfuma, kuwanda kwe enzyme kuramba, dispersibility uye kubatana.
Kuchengetwa kwemvura kwehydroxypropyl methylcellulose zvigadzirwa kunowanzo kukanganiswa nezvinhu zvinotevera:
1. Kufanana kwehydroxypropyl methylcellulose
Uniformly yakaitwa hydroxypropyl methylcellulose, methoxyl uye hydroxypropoxyl yakagovaniswa zvakaenzana, uye mwero wekuchengetedza mvura wakakwira.
2. Hydroxypropyl methylcellulose thermal gel tembiricha
Iyo yakakwirira tembiricha yekudziya gel, iyo yakakwirira yekuchengeta mvura; kana zvisina kudaro, iyo yakaderera mwero wekuchengetedza mvura.
3. Viscosity yehydroxypropyl methylcellulose
Kana iyo viscosity yehydroxypropyl methylcellulose inowedzera, chiyero chekuchengetedza mvura chinowedzerawo; apo viscosity inosvika kune imwe nhanho, kuwedzera kwehuwandu hwekuchengetedza mvura kunowanzova munyoro.
4. Nhamba yehydroxypropyl methylcellulose yakawedzerwa
Iyo yakakura huwandu hwehydroxypropyl methylcellulose yakawedzerwa, iyo yakakwirira mwero wekuchengetedza mvura uye zvirinani maitiro ekuchengetedza mvura. Muchikamu che 0.25-0.6% kuwedzera, chiyero chekuchengetedza mvura chinowedzera nokukurumidza nekuwedzera kwekuwedzera kwekuwedzera; apo huwandu hwekuwedzera hunowedzera kuwedzera, kuwedzera kwemaitiro ekuchengetwa kwemvura kunononoka.
Nguva yekutumira: Mar-14-2023