Focus on Cellulose ethers

Ingabe ukugcinwa kwamanzi kwe-hydroxypropyl methylcellulose (HPMC) kuzohluka ngezinkathi ezahlukene zonyaka?

IHydroxypropyl methyl cellulose ether (HPMC) inomsebenzi wokugcina amanzi kanye nokujiya odakeni lukasimende nodaka olusekelwe ku-gypsum, futhi ingathuthukisa ngempumelelo ukunamathela nokumelana okuqondile kwezinto zodaka.

Izinto ezifana nezinga lokushisa legesi, izinga lokushisa kanye nezinga lokucindezela komoya linomthelela omubi ezingeni lokuhwamuka komswakamo ovela kudaka lukasimende kanye nemikhiqizo esekelwe ku-gypsum. Ngakho-ke, enkathini ngayinye, kunomehluko othile ekungezeni inani elifanayo lemikhiqizo ye-hydroxypropyl methylcellulose ether (HPMC) ukuze kugcinwe ukusebenza kahle kwamanzi.

Ekuthululeni ukhonkolo, umphumela wokuvala amanzi ungalungiswa ngokwandisa nokunciphisa ukugeleza kwe-fractional. Izinga lokugcinwa kwamanzi le-hydroxypropyl methyl cellulose ether ezingeni lokushisa eliphezulu yinani lenkomba elingukhiye lokuhlukanisa ikhwalithi ye-hydroxypropyl methyl cellulose ether.

Imikhiqizo yekhwalithi ephezulu ye-hydroxypropyl methylcellulose (HPMC) ingaxazulula ngempumelelo inkinga yokugcinwa kwamanzi okunezinga lokushisa eliphezulu. Ezikhathini zokushisa okuphezulu, ikakhulukazi ezindaweni ezishisayo nezinomswakama kanye nokwakhiwa kwe-chromatography, i-hydroxypropyl methylcellulose ether (HPMC) yekhwalithi ephezulu iyadingeka ukuze kuthuthukiswe ukugcinwa kwamanzi e-slurry.

Ikhwalithi ephezulu ye-hydroxypropyl methylcellulose ether (HPMC) ihlukaniswe kahle kakhulu, futhi amaqembu ayo e-methoxyl ne-hydroxypropyl asatshalaliswa ngokulinganayo ochungechungeni lwesakhiwo samangqamuzana e-methylcellulose, engakhuthaza ukukhiqizwa kwama-molecule e-oksijini ku-hydroxyl ne-ether bond. Ikhono lokusebenza ngamabhondi e-covalent.

Ingakwazi ukulawula ngempumelelo ukuhwamuka kwamanzi okubangelwa isimo sezulu esishisayo futhi ifinyelele umphumela wokuvala amanzi aphezulu. Ikhwalithi ephezulu ye-hydroxypropyl methylcellulose (HPMC) ingasetshenziswa emisebenzini yezandla exutshwe nodaka nokhonkolo.

Gcoba zonke izinhlayiya eziqinile ukuze wenze ifilimu emanzi, futhi umswakama wesimiso uzokhishwa kancane kancane isikhathi eside, futhi usabele nge-organic matter kanye ne-collagen ukuqinisekisa amandla okubopha namandla aqinile.

Ngakho-ke, ukuze silondoloze amanzi endaweni yokwakha ehlobo elishisayo, kufanele sengeze imikhiqizo yekhwalithi ephezulu ye-hydroxypropyl methylcellulose (HPMC) ngokusho kweresiphi, ngaphandle kwalokho, kuyoba ngenxa yokushoda kwe-coagulation, amandla ancishisiwe, Ukuqhekeka, isigubhu segesi. kanye nezinye izinkinga zekhwalithi yomkhiqizo ezibangelwa ukomiswa ngokushesha okukhulu.

Lokhu kwandisa nobunzima bokwakha kubasebenzi. Njengoba izinga lokushisa lincipha, inani le-hydroxypropyl methylcellulose ether (HPMC) liyehla kancane kancane ukuze kuzuzwe umswakama ofanayo.


Isikhathi sokuthumela: Apr-11-2023
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