Abasebenzisi abaninzi abasoloko benika ingqalelo kwingxaki yobushushu bejeli ye-hydroxypropyl methylcellulose. Kule mihla, i-hydroxypropyl methylcellulose ngokubanzi yahlulwa ngokwe-viscosity, kodwa kwezinye iindawo ezikhethekileyo kunye namashishini akhethekileyo, kuphela yi-viscosity yemveliso ebonakaliswayo. Akwanelanga, oku kulandelayo kwazisa ngokufutshane ubushushu bejeli ye-hydroxypropyl methylcellulose.
Umxholo we-methyl acid unxulumene ngokuthe ngqo neqondo lokwenza i-ester le-cellulose ester, kwaye umxholo we-methyl acid ulungiswa ukuze kulawulwe ukwakheka, ubushushu bokusabela kunye nexesha lokuphendula. Kwangaxeshanye, inqanaba lesisombululo se-ether lichaphazela umxholo we-hydroxyethyl okanye i-hydroxyapatite. Ke ngoko, ii-cellulose ethers kumaqondo obushushu aphezulu ejeli aziyi kuba manzi kangako. Le nkqubo yokuvelisa kufuneka ibonakale, ngoko ke endaweni yamanqanaba aphantsi e-methoxides, ii-cellulose ethers ziya kuba phezulu kancinci ngexabiso.
Ubushushu bejeli bufunyenwe nge-methoxide kunye ne-hydroxyproazepam kunye ne-hydroxyproxin. Amaqela amathathu kuphela anokutshintshwa kwi-cellulose. Fumana ubushushu obufanelekileyo, ugcine umswakama, kwaye umisele ipateni ye-pulp. Ubushushu bejeli yeyona nto ibalulekileyo ekusebenziseni i-cellulose ether. Xa ubushushu obujikeleze budlula ubushushu bejeli, i-cellulose ether iya kukhululwa emanzini. Ubushushu be-pulp emarikeni buxhomekeke kakhulu ekuhlangabezaneni neemfuno zesisombululo kwindawo esingqongileyo (ngaphandle kweemeko ezikhethekileyo). Kukholelwa ukuba xa kusetyenziswa isisombululo, akufuneki unikele ingqalelo ekhethekileyo kwizalathisi zokusebenza xa kusetyenziswa ijeli. Kakade ke, umenzi we-cellulose ether kufuneka ayiqwalasele le salathisi.
Ixesha lokuthumela: Epreli-21-2023