HPMC (HydroxyPropyl Methylcellse) Ese ibikoresho byakoreshejwe cyane bikoreshwa cyane mubwubatsi, imiti, ibiryo, imiti, imiti ya buri munsi nibindi bice. Ukurikije ibibi byayo mumazi, birashobora kugabanywamo ubwoko bwubukonje bwamazi hamwe na polt polt. Hariho itandukaniro rikomeye mubikorwa byumusaruro wubwoko bubiri bwa HPMC.
(1), gutunganya ibintu fatizo
1. Ubwoko bw'amazi akonje ako kanya
Mubikorwa byumusaruro byamazi akonje ako kanya HPMC, hagomba kubanza gukenera mbere. Ibikoresho fatizo muri rusange birimo selile, methanol, ibyatsi bya proparne, ibibi bya methyl, nibindi. By'umwihariko, kuvura selile bisaba gukama kwumirwa no guhonyora kugirango tugere ku kugabura ibintu bikwiye.
2. Ubwoko bushyushye
Hot-Gushonga HPMC isa namazi akonje ya HPMC mubijyanye no gutunganya ibintu fatizo, ariko bifite ibisabwa byinshi kugirango bitunganyirize. Kuberako Ashyushye-Gushonga HPMC ikeneye kwitwara ku bushyuhe bwo hejuru, isuku nubunini bwa selile bigira ingaruka zikomeye muburyo bwo gusaba. Mubisanzwe ni ngombwa gukoresha ubutumburuke-burebure, kandi ingano yinshi igomba kugenzurwa rwose mugihe cyo guhonyora.
(2), Synthesis reaction
1. Ubwoko bw'amazi akonje ako kanya
Synthesis reaction y'amazi akonje ako kanya HPMC isanzwe ikorwa ubushyuhe buke, muri rusange igenzurwa na dogere 20-50. Mugihe c'imyitwarire, selile irategurwa bwa mbere muburyo bwa alkaline kugirango hirya no hino iminyururu ya selile kandi ikabyara amatsinda yubusa. Noneho, reactike nka methanol, propylene okiside na methyl chloride yongeweho muburyo bwo kunanira kugirango ukore reaction. Inzira yose yimyitwarire isaba kugenzura neza ubushyuhe na phi kugirango habeho uburinganire no gutuza kubicuruzwa.
2. Ubwoko bushyushye
Synthesis reaction ya Hot-Gushonga HPMC ikorwa mubushyuhe bwinshi, muri rusange dogere 50-80 cyangwa no hejuru. Inzira yimyitwarire isa nubwoya bukonje bwamazi, ariko bitewe nigipimo cyihuse munsi yubushyuhe bwinshi, busobanutse neza kugenzura ubushyuhe nibihe bisabwa. Ku bushyuhe bwinshi, hydrolysis na erise yimiterere ya selile birarangiye, kandi gukwirakwiza ibiremere byibicuruzwa binini.
(3) Gutunganya nyuma yo gutunganya
1. Ubwoko bw'amazi akonje ako kanya
Nyuma ya synthesis ivugishije amazi akonje ako kanya Hpmc irangiye, urukurikirane rwibikorwa byo gutunganya birasabwa. Iya mbere ni uburyo bwo kutabogama kugirango utandukire ibintu bya alkaline muburyo bugenda. Gukaraba no gukaraba nyuma bikozwe kugirango ukureho ibikoresho fatizo bidasubirwaho n'ibicuruzwa. Intambwe yanyuma ni zumye kandi zisubira inyuma. Ibicuruzwa byumye kugirango bigenzure ibintu byubushuhe, hanyuma bigatwara ingano ibereye kugirango ubone ibicuruzwa byarangiye HPMC.
2. Ubwoko bushyushye
Inzira yo kuvura nyuma yo kuvura ishyushye-gushonga ahanini niyaho ya mazi ako kanya HPMC. Ariko, kubera ubushyuhe bwo hejuru bukoreshwa muburyo bwo gusaba, ibikubiye mubicuruzwa nibitonda kandi inzira yo kumisha iraryoroshye. Byongeye kandi, hot-gushonga HPMC igomba kwita cyane kugirango igenzure ubushyuhe bwo guhonyora mugihe cyo guhonyora kugirango wirinde gutesha agaciro imikorere yibicuruzwa kubera ubushyuhe bwo hejuru.
(4), imikorere no gusaba
Amazi akonje ako kanya HPMC ikoreshwa cyane mumirima isaba firime yihuse cyangwa yijimye, nkamagana, eslisions, nibindi byatewe no gusenya byihuse mumazi akonje. Ibisabwa byo gutanga umusaruro birasabwa ni hejuru, cyane cyane kugenzura imiterere yimyitwarire ahantu hato.
Ashyushye Inzira yacyo yoroshye iraroroshye, ariko ifite ibisabwa byinshi ku itunga ry'ibikoresho fatizo no kugenzura ubushyuhe.
Itandukaniro nyamukuru muri gahunda yo gukora hagati y'amazi akonje ako kanya kandi ashyushye Ubwoko bw'agatsiko k'amazi akonje bigomba kubyitwaramo ku bushyuhe buke kandi busabwa ku bushyuhe no kugenzura pH, mu gihe ubwoko bwa PH bushyushye bwitwaye neza kandi bugata ku bikoresho fatizo no kugenzura ubushyuhe buke. Bombi nabo zitandukanye muburyo bwihariye bwo gusaba, kandi buriwese agira uruhare runini.
Igihe cyagenwe: Gashyantare-17-2025