01. Itandukaniro riri hagati ya hydroxypropyl methyl y'impimbano na hydroxypropyl methyl nziza cyane
Ishusho: Ifu y'ibinyampeke HPCM isa nkaho ingana cyane, iri hagati ya 0.3 na 0.4 g/ml. Amylum ifatana na ifu y'ibinyampeke bityo HPCM ni amazi kandi nta stress irimo nk'imiti isanzwe ikuraho uburozi.
Ibipimo: sitashi yuzuyemo sitashi, ifu ya hpm, fibre munsi ya mikorosikopi cyangwa ikirahuri gikuza, HPCM ubwoko bw'itashi bushobora kugenzura sitashi cyangwa sitashi n'ibishyimbo.
Impumuro mbi: Hydroxypropyl methylcellulose HPMC ntabwo ishobora guhumurirwa na ammonia, sitashi na alkoholi; Hydroxypropyl methylcellulose yahinduwe HPMC ishobora guhumurirwa n'impumuro z'ubwoko bwose, nubwo yaba idafite uburyohe, yumva idafite imbaraga nyinshi muri Shen.
Umuti w'amazi: umuti w'amazi wa HPMC methylcellulose demethoxypropyl brinzolamide urimo amazi meza, ufite igipimo cyoroshye cyo gufata amazi ≥ 97%; selulose ya HPMC ifite hydrolyzed cellulose ivanze na hydrolyzed cellulose ivanze na HPMC ifite hydrolyzed cellulose irakomeye cyane, igipimo cyo gufata amazi kigera kuri 80%.
02. Kubungabunga methyl cellulose ku bushyuhe bwinshi ni ikimenyetso cy'ingenzi cyo kumenya ubwiza bwa methyl cellulose ether. Ibintu nk'ubushyuhe bw'umwuka, ubushyuhe bw'umwuka n'umuvuduko w'umuyaga bigira ingaruka ku ihindagurika ry'ibikomoka kuri sima n'ibikomoka kuri gypsum. Kubwibyo, kongeramo ingano imwe y'ibikomoka kuri HPMC mu bihe bitandukanye, hari itandukaniro mu mikorere myiza yo kuzigama amazi. Mu buryo bwihariye bwo gukora, ingaruka za serosa ihumura zishobora gukosorwa hagabanywa ingano ya HPMC yongewemo. HPMC yo mu rwego rwo hejuru ya hydroxypropyl methylcellulose ishobora gukemura neza ikibazo cyo kubika amazi mu bushyuhe bwinshi.
Selulosi ya methyl nziza cyane ishobora gukwirakwizwa neza kandi neza mu bintu bya sima no mu bikoresho byo gusigwa, bigatuma habaho firime ikomeye, isohoka buhoro buhoro mu gice cy’ibanze igakora reaction ihindagurika ry’amazi hamwe n’ibikoresho bihindagurika, bityo ikarushaho gukomera no gukomera. HPMC cellulose methyl propoxylate ni nziza kandi irahuye, kandi ogisijeni ya ethyl bromide na aside propionic groups ku ruhererekane rwa cellulose ni imwe, ibyo bigatuma ogisijeni na hydrogen bifatanya buri atome y’ingenzi ya hydroxyl na ether. Amazi make ashobora guhindura amazi y’ubuntu mo amazi akiza uruhu, bityo akagenzura neza imyuka y’amazi, agatanga ubushyuhe, n’ubushuhe bwinshi bushingiye ku mazi.
Bitewe n'ubushyuhe bwinshi mu mpeshyi, kugira ngo haboneke ingaruka zo kuzigama amazi, ni ngombwa kongeramo ibikoresho bya HPMC byiza hakurikijwe formula, bitabaye ibyo bizatera ibibazo nko kuma cyane, imbaraga nke, gucikamo ibice, guhagarara no gutakaza akazi, no kongera ingorabahizi z'ubwubatsi ku bakozi. Mu gihe ugabanya ubushyuhe, birashoboka kugabanya buhoro buhoro ingano ya HPMC yongewemo hanyuma ukabona ingaruka imwe yo kuzigama amazi.
Igihe cyo kohereza: 21 Mata 2023