Ngokumalunga nengxaki yobushushu bejeli ye-hydroxypropyl methylcellulose HPMC, abasebenzisi abaninzi abafane banikele ingqalelo kwingxaki yobushushu bejeli ye-hydroxypropyl methylcellulose.Namhlanje, i-hydroxypropyl methylcellulose ngokuqhelekileyo yahlulwa ngokwe-viscosity, kodwa kwezinye iindawo ezikhethekileyo kunye namashishini akhethekileyo, akwanelanga ukubonisa kuphela i-viscosity yemveliso.Oku kulandelayo kwazisa ngokufutshane ubushushu bejeli ye-hydroxypropyl methylcellulose.
Ubungakanani beqela le-methoxyl lihambelana ngokuthe ngqo kwinqanaba le-cellulose sourization, kwaye umxholo weqela le-methoxyl unokulungiswa ngokulawula ifomula, ubushushu bokuphendula kunye nexesha lokuphendula.Ngelo xesha, iqondo lokungasebenzi lichaphazela iqondo lokutshintshwa kwe-hydroxyethyl okanye i-hydroxypropyl.Ngoko ke, ukugcinwa kwamanzi kwe-cellulose ether kunye nokushisa kwe-gel ephezulu kuya kuba mbi.Le nkqubo yokuvelisa kufuneka ihlolwe, ngoko ke akukhona ukuba ixabiso lokuvelisa i-cellulose ether liphantsi ukuba umxholo we-methoxy uphantsi, ngokuchaseneyo, ixabiso liya kuba phezulu.
Ukushisa kwe-gel kunqunywe ngamaqela e-methoxyl, kwaye ukugcinwa kwamanzi kunqunywe ngamaqela e-hydroxypropoxyl.Kukho amaqela amathathu kuphela athatha indawo ye-cellulose.Fumana ubushushu bakho obufanelekileyo bokusebenzisa, ukugcinwa kwamanzi okufanelekileyo, kwaye emva koko umisele imodeli yale cellulose.
Iqondo lokushisa lejeli liyingongoma ebalulekileyo yokusetyenziswa kwe-cellulose ether.Xa ubushushu be-ambient budlula ubushushu be-gel, i-ether ye-cellulose iya kwahlulwa emanzini kwaye ilahlekelwe ukugcinwa kwayo kwamanzi.Ukushisa kwejel ye-cellulose ether kwimarike kunokwanelisa ngokusisiseko iimfuno zendawo yokusetyenziswa kodaka (ngaphandle kweendawo ezikhethekileyo).Xa usebenzisa udaka, akukho mfuneko yokuhlawula ingqalelo ekhethekileyo kwisalathisi sokusebenza sokushisa kwe-gel.
Ixesha lokuposa: Apr-04-2023