Abasebenzisi abaninzi abafane bathathele ingqalelo ingxaki yobushushu bejeli ye-hydroxypropyl methyl cellulose ye-HPMC.Kule mihla, i-hydroxypropyl methyl cellulose HPMC ngokubanzi yahlulwa yi-viscosity, kodwa kwezinye iindawo ezikhethekileyo kunye namashishini akhethekileyo, kuphela i-viscosity yemveliso ibonakala.Akwanelanga, oku kulandelayo kwazisa ngokufutshane ubushushu bejeli ye-hydroxypropyl methylcellulose HPMC.
Umxholo weqela le-methoxy lihambelana ngokuthe ngqo kwinqanaba le-etherification ye-cellulose ether.Umxholo weqela le-methoxy unokulungiswa ngokulawula ifomula, ubushushu bokuphendula kunye nexesha lokuphendula.Kwangaxeshanye, iqondo etherification kuchaphazela iqondo endaweni hydroxyethyl okanye hydroxypropyl.Ke ngoko, ugcino lwamanzi lwe-cellulose ether enobushushu obuphezulu bejeli ngokuqhelekileyo bumbi kancinane.Le nkqubo yokuvelisa kufuneka ihlolwe, ngoko ke kungekhona ngenxa yokuba umxholo we-methoxy uphantsi, ixabiso le-cellulose ether liphantsi, ngokuchaseneyo, ixabiso liya kuba phezulu.
Umxholo we-QUALICELL's hydroxypropyl methyl cellulose HPMC hydroxypropyl yi-25%.Iqondo lokushisa lejeli liyindawo ebalulekileyo yokusetyenziswa kwe-cellulose ether.Xa ubushushu be-ambient budlula ubushushu be-gel, i-ether ye-cellulose iya kuphuma emanzini kwaye ilahlekelwe ukugcinwa kwayo kwamanzi.Ubushushu bejeli ye-cellulose ether ye-Qualicell yi-65 degrees, enokuthi ihlangabezane neemfuno zodaka kunye ne-putty ukusetyenziswa kwendawo (ngaphandle kweemeko ezikhethekileyo).Ukuba uthenga i-QualiCell HPMC, nceda wazise kwangaphambili ukuba uneemfuno ezizodwa.
Ixesha lokuposa: Jan-06-2022