Ngokuphathelele ingxaki yobushushu bejeliIHydroxypropyl Methyl Cellulose HPMC, abasebenzisi abaninzi abasoloko beyithathela ingqalelo ingxaki yobushushu bejeli yeHydroxypropyl Methyl Cellulose. Kule mihla, iHydroxypropyl Methyl Cellulose ngokubanzi yahlulwa ngokwe-viscosity yayo, kodwa kwezinye iindawo ezikhethekileyo kunye namashishini akhethekileyo, akwanelanga ukubonisa kuphela i-viscosity yemveliso. Oku kulandelayo kwazisa ngokufutshane ubushushu bejeli yeHydroxypropyl Methyl Cellulose.
Ubungakanani beqela leMethoxyl bunxulumene ngokuthe ngqo nomlinganiselo we-cellulose sourization, kwaye umxholo weqela leMethoxyl unokulungiswa ngokulawula ifomula, ubushushu bokusabela kunye nexesha lokuphendula. Kwangaxeshanye, umgangatho wokungasebenzi uchaphazela umgangatho wokutshintshwa kweHydroxyethyl okanye iHydroxypropyl. Ke ngoko, ukugcinwa kwamanzi kwe-cellulose ether enobushushu obuphezulu bejeli kuya kuba kubi. Le nkqubo yemveliso kufuneka ihlolwe, ngoko ke ayithethi ukuba iindleko zemveliso ye-cellulose ether ziphantsi ukuba umxholo weMethoxy uphantsi, ngokuchaseneyo, ixabiso liya kuba phezulu.
Ubushushu bejeli bumiselwa ngamaqela e-methoxyl, kwaye ukugcinwa kwamanzi kuqinisekiswa ngamaqela e-Hydroxypropoxy. Kukho amaqela amathathu kuphela anokutshintshwa kwi-cellulose. Fumana ubushushu obufanelekileyo bokusetyenziswa, ukugcinwa kwamanzi okufanelekileyo, uze umisele imodeli yale cellulose.
Ubushushu bejeli yeyona nto ibalulekileyo ekusetyenziswenii-cellulose etherXa ubushushu obujikeleze umhlaba budlula ubushushu bejeli, i-cellulose ether iya kwahlulwa emanzini kwaye ilahlekelwe kukugcinwa kwamanzi. Ubushushu bejeli ye-cellulose ether ethengiswayo bunokuhlangabezana neemfuno zendawo yokusetyenziswa kwe-mortar (ngaphandle kweendawo ezikhethekileyo). Mna ngokwam ndicinga ukuba akufuneki ukuba kunikwe ingqalelo ekhethekileyo kwisalathisi sokusebenza kobushushu bejeli xa kusetyenziswa i-mortar. Kakade ke, ukuveliswa kwe-cellulose ether Abavelisi kufuneka bayiqwalasele.
Ixesha leposi: Epreli-25-2024