Ni gbogbogbo, iki ti hydroxypropyl methylcellulose ga julọ. Bibẹẹkọ, o tun da lori iwọn aropo ati aropin iwọn aropo. Hydroxypropyl methyl cellulose jẹ ti ether cellulose ti kii-ionic, irisi jẹ lulú funfun, odorless ati itọwo, tiotuka ninu omi ati ọpọlọpọ awọn olomi pola Organic ati ipin to dara ti ethanol / omi, propanol / omi, dichlorethylene O jẹ insoluble ni alkanes, acetone, ati ethanol pipe, ti o si swells sinu kan ko o tabi die-die turbid colloidal ojutu ni tutu omi. Ojutu olomi naa ni iṣẹ ṣiṣe dada, ṣe fiimu tinrin lẹhin gbigbe, ṣe iyipada iyipada lati sol si jeli ni ọkọọkan lori alapapo ati itutu agbaiye. Ga akoyawo ati idurosinsin išẹ.
Hydroxypropyl methylcellulose ni ohun-ini ti gelation gbona. Lẹhin ti ojutu olomi ti ọja naa jẹ kikan, o jẹ ki gel kan ati ki o ṣafẹri, o si tuka lẹhin itutu agbaiye. Iwọn otutu gelation ti awọn pato pato yatọ. Solubility yatọ pẹlu iki. Isalẹ awọn iki, ti o tobi ni solubility. Awọn ohun-ini ti hydroxypropyl methylcellulose pẹlu oriṣiriṣi awọn pato yatọ. Itusilẹ ti hydroxypropyl methylcellulose ninu omi ko ni ipa nipasẹ iye pH.
Awọn ẹya ara ẹrọ: O ni awọn abuda ti agbara ti o nipọn, iyọda iyọ, PH iduroṣinṣin, idaduro omi, iduroṣinṣin iwọn, ohun-ini ti o dara julọ ti fiimu, ibiti o pọju ti resistance enzymu, dispersibility ati isokan.
Idaduro omi ti awọn ọja hydroxypropyl methylcellulose nigbagbogbo ni ipa nipasẹ awọn nkan wọnyi:
1. Iṣọkan ti hydroxypropyl methylcellulose
Hydroxypropyl methylcellulose ti a ṣe ni iṣọkan, methoxyl ati hydroxypropoxyl ti pin ni deede, ati pe iwọn idaduro omi jẹ giga.
2. Hydroxypropyl methylcellulose gbona jeli otutu
Ti o ga ni iwọn otutu gel gbona, iwọn idaduro omi ti o ga julọ; bibẹkọ ti, isalẹ awọn omi idaduro oṣuwọn.
3. Viscosity ti hydroxypropyl methylcellulose
Nigbati iki ti hydroxypropyl methylcellulose pọ si, iwọn idaduro omi tun pọ si; nigbati viscosity ba de ipele kan, ilosoke ninu oṣuwọn idaduro omi duro lati jẹ onírẹlẹ.
4. Iwọn hydroxypropyl methylcellulose ti a fi kun
Ti o pọju iye ti hydroxypropyl methylcellulose ti a fi kun, ti o ga ni iye idaduro omi ati pe ipa idaduro omi dara julọ. Ni ibiti o ti 0.25-0.6% afikun, iwọn idaduro omi pọ si ni kiakia pẹlu ilosoke iye afikun; nigbati iye afikun naa ba pọ sii, aṣa ilosoke ti iwọn idaduro omi fa fifalẹ.
Akoko ifiweranṣẹ: Oṣu Kẹta-14-2023