Muri iki gihe, ubwiza bwa hydroxypropyl methylcellulose yo mu rugo buratandukanye cyane, kandi igiciro kiratandukanye cyane, bigatuma abakiriya bigorana guhitamo neza. HPMC yahinduwe y'ikigo kimwe cy'abanyamahanga ni umusaruro w'ubushakashatsi bw'imyaka myinshi. Kongeramo ibintu bishobora kunoza imikorere y'ubwubatsi no kunoza imikorere. Birumvikana ko bizagira ingaruka ku yindi miterere, ariko muri rusange bikora neza; Intego yonyine yo kongeramo ibindi bintu ni ukugabanya ibiciro, bigatuma amazi agabanuka cyane, guhuza n'ibindi bicuruzwa, bigatera ibibazo byinshi by'ubwiza bw'ubwubatsi.
Hari itandukaniro rikurikira hagati ya HPMC y’umwimerere na HPMC y’umwimerere:
1. HPMC y'umwimerere iraryoshye kandi ifite ubucucike buke, kuva kuri 0.3-0.4g/ml; HPMC yahinduwe ifite ubushyuhe bwiza kandi yumva iremereye, ibi bikaba bitandukanye cyane n'ibicuruzwa nyabyo mu buryo bugaragara.
2. Umuti w'amazi wa HPMC urimo amazi meza, utuma amazi anyuramo urumuri rwinshi, kandi umuvuduko wo kubika amazi ni ≥ 97%; umuti w'amazi wa HPMC uvanzemo amazi uba wuzuye ibicu, kandi umuvuduko wo kubika amazi biragoye kugera kuri 80%.
3. HPMC y'umwimerere ntigomba kugira impumuro ya amoniya, sitashi na alcool; HPMC yahinduwe ishobora guhumurirwa impumuro z'ubwoko bwose, nubwo yaba idafite uburyohe, yumva iremereye.
4. Ifu ya HPMC yuzuye ifite uturemangingo tw’urukiramende munsi ya mikorosikopi cyangwa ikirahuri gikuza; HPMC yahinduwe ishobora kugaragara nk'ibintu bikomeye cyangwa kristu munsi ya mikorosikopi cyangwa ikirahuri gikuza.
Uburebure butagira ingano bwa 200.000?
Impuguke nyinshi n'abahanga bo mu gihugu basohoye inyandiko zemeza ko umusaruro wa HPMC ubangamiwe n'umutekano w'ibikoresho byo mu rugo no kubifunga, uburyo bwo gusya no gukora umuvuduko muto, kandi ibigo bisanzwe ntibishobora gukora ibicuruzwa bifite ubukana burenze 200.000. Mu mpeshyi, ndetse ntibishoboka gukora ibicuruzwa bifite ubukana burenze 80.000. Bemeza ko ibicuruzwa byitwa 200.000 bigomba kuba ari ibihimbano.
Ingingo z'impuguke ntizifite ishingiro. Dukurikije uko umusaruro w'imbere mu gihugu wari umeze mbere, imyanzuro yavuzwe haruguru irashobora gufatwa.
Ikintu cy'ingenzi cyo kongera ubukana bwa HPMC ni ugufunga cyane kwa reactor no gukora ibintu bishyushye cyane ndetse n'ibikoresho fatizo byiza cyane. Kuba umwuka mwinshi urinda kwangirika kwa cellulose na ogisijeni, kandi iyo imiterere y'umuvuduko mwinshi ituma etherification agent yinjira muri cellulose kandi bigatuma umusaruro uba umwe.
Igipimo cy'ibanze cya 200000cps hydroxypropyl methylcellulose:
2% by'umuti w'amazi 200000cps
Ubuziranenge bw'ibicuruzwa ≥98%
Ibipimo bya Methoxy 19-24%
Ibipimo bya Hydroxypropoxy: 4-12%
Ibiranga 200000cps hydroxypropyl methylcellulose:
1. Imiterere myiza yo kubika amazi no kuyagwingira kugira ngo amazi y’urusenda arusheho kuzura.
2. Ingufu nyinshi zo gufatanya n'ingaruka zikomeye zo guhumeka, bibuza neza gucika no kwangirika.
3. Gutinza kurekura ubushyuhe bw'amazi ya sima, gutinza igihe cyo gushyiraho, no kugenzura igihe cyo gukoresha sima.
4. Kunoza imiterere y'amazi ya mortiweri ipompewe, kunoza imikorere y'imitsi, no gukumira gutandukanya no kuva amaraso.
5. Ibikoresho byihariye, bigamije kubaka ahantu hashyushye cyane mu mpeshyi, kugira ngo amazi y'urubura arusheho kuryoha nta gucikagurika.
Bitewe n’uko isoko ritagenzurwa neza, irushanwa mu nganda zikora ibintu bya mortiweri riri kwiyongera cyane. Kugira ngo baheshe isoko agaciro, bamwe mu bacuruzi bavanze ibintu byinshi bihendutse kugira ngo bakore ether ya cellulose ihendutse. Aha, umwanditsi ategetswe kwibutsa abakiriya kudakurikirana ibiciro biri hasi mu buryo buhumyi, kugira ngo badashukwa. Gushukwa, biganisha ku mpanuka z’ubuhanga, kandi amaherezo igihombo kiruta inyungu.
Uburyo busanzwe bwo gusambanya no kumenya umuntu:
(1) Kongeramo amide muri eteri ya selulosi bishobora kongera vuba ubukana bw'umuti wa eteri ya selulosi, bigatuma bidashoboka kuyimenya ukoresheje viscometer.
Uburyo bwo kumenya: Bitewe n'imiterere ya amides, ubu bwoko bwa eteri ya selulose bukunze kugira imiterere yo guhuza, ariko eteri nziza ya selulose ntizagaragara nk'imiterere yo guhuza nyuma yo gushonga, umuti umeze nk'umusemburo, witwa ko ufata ariko ntuhujwe.
(2) Shyiramo sitashi muri eteri ya selulose. Sitashi muri rusange ntishongera mu mazi, kandi umuti akenshi ntushobora kohereza urumuri neza.
Uburyo bwo kumenya: Sukura umuti wa eteri ya selulose hamwe na iyode, niba ibara rihindutse ubururu, bishobora gufatwa nk'aho hashyizweho sitashi.
(3) Ongeraho ifu ya alukolo ya polyvinyl. Nkuko twese tubizi, igiciro ku isoko cya alukolo ya polyvinyl nka 2488 na 1788 gikunze kuba kiri hasi ugereranyije n’icya eteri ya cellulose, kandi kuvanga ifu ya alukolo ya polyvinyl bishobora kugabanya ikiguzi cya eteri ya cellulose.
Uburyo bwo kumenya: Ubu bwoko bwa eteri ya selulose akenshi buba bufite utubumbe twinshi kandi bunini. Bushonga vuba n'amazi, hitamo umuti ukoresheje inkoni y'ikirahure, hazabaho ikintu kigaragara cyane cyo gukurura imigozi.
Incamake: Bitewe n'imiterere n'amatsinda byayo byihariye, uburyo amazi abikwamo muri eteri ya selulose ntashobora gusimburwa n'ibindi bintu. Uko byagenda kose ubwoko bw'umunyururu uvanzemo, igihe cyose bivanze mu bwinshi, uburyo amazi abikwamo buzagabanuka cyane. Ingano ya HPMC ifite ubukana busanzwe bwa 10W muri mortila isanzwe ni 0.15 ~ 0.2 ‰, kandi igipimo cyo kubika amazi ni > 88%. Kuva amaraso ni bibi cyane. Kubwibyo, igipimo cyo kubika amazi ni ikimenyetso cy'ingenzi cyo gupima ubwiza bwa HPMC, yaba ari nziza cyangwa mbi, igihe cyose yongewe muri mortila, bizagaragara neza mu kanya gato.
Igihe cyo kohereza: Gicurasi-10-2023