Umthamo wokugcina amanzi we-hydroxypropyl methylcellulose uxhomekeke kumxholo we-hydroxypropyl. Ngaphantsi kweemeko ezifanayo, umthamo wokugcina amanzi we-hydroxypropyl methylcellulose unamandla, kwaye umxholo we-methoxy womxholo ofanayo we-hydroxypropyl uyancipha ngokufanelekileyo. . Ukuphakama komxholo we-hydroxypropyl methylcellulose, inkulu i-viscosity yayo, ngoko xa ukhetha imveliso, kufuneka ukhethe imveliso ehambelana nawe ngokwenjongo yemveliso.
Ubushushu kunye nezinye izinto zinefuthe ekugcinweni kwamanzi kwi-hydroxypropyl methylcellulose.
Ubushushu bejeli yobushushu:
I-Cellulose ether HPMC inobushushu obuphezulu be-thermal gelation kunye nokugcinwa kakuhle kwamanzi; ngokuchaseneyo, inokugcinwa kwamanzi kakubi.
Viscosity ye-cellulose ether HPMC:
Xa i-viscosity ye-HPMC isanda, ukugcinwa kwayo kwamanzi kuyanda; xa i-viscosity inyuka kwinqanaba elithile, ukwanda kokugcinwa kwamanzi kunciphisa.
Iselulosi ether HPMC homogeneous:
I-HPMC ine-reaction efanayo, ukuhanjiswa okufanayo kwe-methoxyl kunye ne-hydroxypropoxyl, kwaye inokugcinwa kwamanzi okulungileyo.
Iselulosi ether HPMC ithamo:
Okukhona idosi iphezulu, kokukhona inyuka izinga logcino lwamanzi kwaye kokukhona kucaca ngakumbi umphumo wokugcina amanzi.
Xa isixa-mali esongezelelweyo siyi-0.25 ~ 0.6%, izinga lokugcinwa kwamanzi linyuka ngokukhawuleza ngokunyuka kwesixa-mali esongezelelweyo; xa isixa-mali esongeziweyo sinyuka ngakumbi, ukunyuka kweqondo lokugcinwa kwamanzi kuyehla.
Ngamafutshane, ukugcinwa kwamanzi kwe-HPMC kuhambelana nezinto ezifana neqondo lokushisa kunye ne-viscosity, kwaye ukugcinwa kwamanzi kuhambelana nenani le-hydroxypropyl methylcellulose eyongeziweyo. Xa isixa se-hydroxypropyl methylcellulose sifikelela kwixabiso elithile, ukusebenza kwayo kokugcinwa kwamanzi kufikelela kwibhalansi.
Ixesha lokuposa: Feb-23-2023