I-JINJI ® HPMC isetshenziswe ekuzilinganiseleni ngokwakho
I-JINJI ® HPMC isetshenziswe ekuzilinganiseleni ngokwakho
Izingxube zokuzilinganisa ziyinhlanganisela yamakhemikhali esetshenziselwa ukushelela ukhonkolo ongalingani noma phansi ngokhuni. Akhiwe usimende, izihlabathi, izigcwalisi, futhi aguqulwa yizithasiselo eziningi ezifana nama-cellulose ethers, ama-plasticizers, ama-defoamers, ama-stabilizers, nezimpushana ezihlakazeka kabusha. Njengempahla egelezayo, ezilinganisa yona futhi ezishelelayo, izinhlanganisela zokuzilinganisa zingakhiqiza indawo eyisicaba, ebushelelezi, futhi eqinile enamandla amakhulu okucindezela.
Ukwengezwa kwe-HPMC kungathuthukisa lezi zakhiwo ezilandelayo ezinhlelweni zokuzilinganisa ezihlanganisayo:
Ukugeleza
Njengodaka oluzilinganisa, uketshezi lungenye yezinkomba eziyinhloko zokuhlola ukusebenza kokuzilinganisa. Ngaphansi kwesisekelo sokuqinisekisa imithetho yokwakheka kodaka, uketshezi lodaka lungalungiswa ngokushintsha okuqukethwe kwefayibha HPMC. Kodwa-ke, okuqukethwe okuphezulu kakhulu kuzonciphisa ukugcwala kodaka, ngakho inani le-cellulose ether kufanele lilawulwe ngaphakathi kwebanga elifanele.
Ukugcina Amanzi
Ukugcinwa kwamanzi odaka kuyinkomba ebalulekile yokuzinza kwezingxenye zangaphakathi zodaka olusha lukasimende. Ukuze wenze ukusabela kwe-hydration kwento yejeli kwenziwe ngokugcwele, inani elifanele le-cellulose ether lingagcina amanzi odaka isikhathi eside. Ngokuvamile, ukugcinwa kwamanzi kwe-slurry kuyanda ngokwanda kokuqukethwe kwe-cellulose ether. Ukugcinwa kwamanzi kwe-cellulose ether kungavimbela i-substrate ekumunceni amanzi amaningi ngokushesha kakhulu futhi kuvimbele ukuhwamuka kwamanzi, ngaleyo ndlela kuqinisekiswe ukuthi indawo yodaka ihlinzeka ngamanzi anele okufaka usimende. Ngaphezu kwalokho, i-viscosity ye-cellulose ether nayo inomthelela omkhulu ekugcinweni kwamanzi odaka. Ukuphakama kwe-viscosity, kungcono ukugcina amanzi.
Ukusetha isikhathi
I-HPMC inomphumela wokunensa wokusetha kudaka. Ngokukhula kokuqukethwe kwe-cellulose ether, isikhathi sokusetha sodaka siyandiswa. Umthelela wokuvinjelwa kwe-cellulose ether ku-slurry usimende ikakhulukazi uncike ezingeni lokushintshanisa kweqembu le-alkyl, elingahlobene kakhulu nesisindo salo samangqamuzana. Lapho izinga lokushintshwa kwe-alkyl liphansi, kukhuphuka okuqukethwe kwe-hydroxyl, umphumela wokuhlehlisa osobala kakhulu. Futhi uma kuphezulu okuqukethwe kwe-cellulose ether, kulapho okubonakala khona umphumela wokuvinjelwa kwefilimu eyinhlanganisela ekufakweni kwamanzi kokuqala kukasimende. Ngakho-ke, umphumela wokuhlehlisa ubaluleke kakhulu.
Udaka oluzilinganisa ngokwalo lungathembela kusisindo somuntu siqu ukwenza isisekelo esiyisicaba, esibushelelezi nesiqinile ku-substrate yokubeka noma yokuhlanganisa ezinye izinto, kuyilapho ivumela ukwakhiwa okuphumelelayo endaweni enkulu.