01. Umehluko phakathi kwe-hydroxypropyl methyl mbumbulu kanye ne-hydroxypropyl methyl esezingeni eliphezulu
Ukubukeka: Isitashi esimsulwa i-HPCM ibonakala ifana kakhulu, phakathi kuka-0.3 no-0.4 g/ml. I-Amylum inamathela kusitashi ngakho-ke i-HPCM iyiketshezi futhi ayicindezeleki kakhulu kunezihlanzi ezivamile zokuhlanza umzimba.
Izimo: isitashi esigcwele isitashi, i-hpm powder, i-fiber ngaphansi kwe-microscope noma ingilazi yokukhulisa, i-HPCM uhlobo lwesitashi esingalawula isitashi noma isitashi kanye ne-lentile.
Iphunga: I-hydroxypropyl methylcellulose emsulwa i-HPMC ayikwazi ukunuka i-ammonia, isitashi kanye notshwala; i-hydroxypropyl methylcellulose exubile i-HPMC inganuka zonke izinhlobo zamaphunga, noma ngabe ayinambitheki, izozizwa ibuthakathaka i-Shen.
Isixazululo samanzi: isixazululo samanzi esimsulwa, i-HPMC methylcellulose demethoxypropyl brinzolamide sicacile, izinga lokugcina amanzi lilula ≥ 97%; i-HPMC hydrolyzed cellulose exutshwe ne-hydrolyzed cellulose exutshwe ne-hydrolyzed cellulose ixutshwe ne-hydrolyzed cellulose inomswakama kakhulu, izinga lokugcina amanzi licishe lifike ku-80%.
02. Ukulondolozwa kwe-methyl cellulose ekushiseni okuphezulu kuyinkomba ebalulekile yokunquma ikhwalithi ye-methyl cellulose ether. Izici ezifana nokushisa komoya, izinga lokushisa lomoya kanye nesivinini somoya zithinta ukuguquguquka kwemikhiqizo ye-slurry yesimende kanye ne-gypsum. Ngakho-ke, ukwengeza inani elifanayo lemikhiqizo ye-HPMC ezinkathini ezahlukene, kunomehluko othile ekusebenzeni kahle kokonga amanzi. Enkambisweni ethile yokusebenza, umphumela we-serosa yokuthambisa ungalungiswa ngokunciphisa inani le-HPMC elingeziwe. I-hydroxypropyl methylcellulose HPMC esezingeni eliphezulu ingaxazulula ngempumelelo inkinga yokugcina amanzi ekushiseni okuphezulu.
I-methyl cellulose esezingeni eliphezulu ingasatshalaliswa ngokulinganayo nangokuphumelelayo emikhiqizweni ye-cement mortar kanye ne-plastering, yakha ifilimu eqinile, ekhishwa kancane kancane kusuka kungqimba oluyisisekelo futhi yakha ukusabela kwe-hydrophilic ngezinto ezi-inorganic curling, ngaleyo ndlela iqinisekise amandla nokuqina. I-HPMC cellulose methyl propoxylate isezingeni eliphezulu futhi iyafana, kanti i-oxygen yamaqembu e-ethyl bromide kanye ne-propionic acid eceleni kwe-molecular cellulose chain iyafana, okuthuthukisa ukubopha kwe-oxygen ne-hydrogen kwe-athomu ngayinye eyisihluthulelo ye-hydroxyl ne-ether. Amanzi aphansi angaguqula amanzi akhululekile abe ngamanzi asindisa isikhumba, ngaleyo ndlela alawule ngempumelelo ukuhwamuka kwamanzi, akhiqize ukushisa, kanye nomswakama ophezulu osekelwe emanzini.
Ngenxa yokwakhiwa kwezinga lokushisa eliphezulu ehlobo, ukuze kufezwe umphumela wokonga amanzi, kuyadingeka ukwengeza imikhiqizo ye-HPMC esezingeni eliphezulu ngokwefomula, ngaphandle kwalokho kuzobangela izinkinga ezifana nokomisa ngokweqile, amandla aphansi, ukuqhekeka, ukushaqeka okungasebenzi kanye nokuyeka, futhi kwandise ubunzima bokwakha kwabasebenzi. Ngenkathi kunciphisa izinga lokushisa, kungenzeka ukunciphisa kancane kancane inani le-HPMC elingeziwe bese uthola umphumela ofanayo wokonga amanzi.
Isikhathi sokuthunyelwe: Ephreli-21-2023