HydroxyPropyl Methylcellsellse (HPMC) ni polymer itandukanye hamwe nibiribwa mu nganda zitandukanye harimo imiti, ibiryo, kubaka no kwisiga. Ibikoresho by'ibanze bikoreshwa muri synthesizes hpmc ni selile okiside.
1. Cekwi: ishingiro rya HPMC
1.1 Incamake ya selile
Cellulose ni karbohyd carbohytet aricyo kintu nyamukuru cyingenzi cyinkike zabaswa. Igizwe n'iminyururu yumurongo ya molekile za glucose zifitanye isano na β-1,4-glycosic. Ubwinshi bw'itsinda rya hydroxyl muri selile rituma ibintu bikwiye gutangira kuri synthesis ya selile zitandukanye, harimo na HPMC.
1.2 Amasoko ya Cellulose
Cekwix irashobora kokorwa mubikoresho bitandukanye byibimera, nka pompe yimbaho, ipamba, cyangwa ibindi bimera bya fibrous. Igiti cyinkwi nisoko isanzwe kubera ubwinshi, gukora neza-gukaraba, no kuramba. Gukuramo selile mubisanzwe bikubiyemo kumena fibre yibihingwa binyuze murukurikirane rwimikorere n'imiti.
1.3 Isuku n'ibiranga
Ubwiza no kwezwa kwa selile birakomeye muguhitamo ibiranga ibicuruzwa byanyuma bya HPMC. Ituriro rirekura ryemeza ko HPMC ikorerwa ibintu bihamye nka viscosiya, guke cyane no gushikama.
2. Poplene oxide: Kumenyekanisha hydroxyPropyl
2.1 Intangiriro Kuri Propaylene Oxide
Poppaylene oxide (po) nigice kama hamwe na chimique c3h6o. Numuntu epoxide, bivuze ko irimo atom ya ogisijeni yahuje atome ebyiri zegeranye. Porogaramu ya proplene ni ibintu byingenzi byingenzi kuri synthesis ya hydroxypropyl selile selilese, ni yo hagati yo gutanga umusaruro wa HPMC.
2.2 Inzira ya HydroxyProusy
Inzira ya hydroxyprousy irimo imyitwarire ya selile ifite imyanda ya propylene kugirango itangire amatsinda ya hydroxyProppoyl kuri selile ya selile. Iyi myitwarire isanzwe ikorwa imbere yumusemburo wibanze. HydroxyPropyl Amatsinda atanga umukecuru hamwe nibindi bintu byifuzwa kuri selile, biganisha kumushinga wa hydroxyProll.
3. Ubwicanyi: ongeraho amatsinda ya methyl
3.1 Inzira ya Methylation
Nyuma ya hydroxy opleyelition, intambwe ikurikira muri synthesis ya HPMC ni methylation. Inzira ikubiyemo intangiriro yitsinda rya methyl kuri selile backdone. Methyl chloride nigisubizo gikunze gukoreshwa kuriyi reaction. Urwego rw'ubuhinzi rugira ingaruka kumitungo yibicuruzwa byanyuma bya HPMC, harimo viscosiya hamwe nimyitwarire ya gel.
3.2 Urwego rwo gusimbuza
Urwego rwo gusimbuza (DS) nigipimo cyingenzi cyo guhuza impuzandengo yabasimbuye (methyl na hydroxyproppopyl) igice cya anhydroglucose muri pasiporo ya selile. Igikorwa cyo gukora kigenzurwa neza kugirango ugere kubikorwa byifuzwa byibicuruzwa bya HPMC.
4. Gusukura no kugenzura ubuziranenge
4.1 Gukuraho ibicuruzwa
Synthesis ya HPMC irashobora kuvamo gushiraho ibicuruzwa nkabaroma cyangwa reagents idakozwe. Intambwe zo kwezwa zirimo gukaraba no kugisimba zikoreshwa kugirango ukureho umwanda kandi wongere ubuziranenge bwibicuruzwa byanyuma.
4.2 Ingamba zo kugenzura ubuziranenge
Ingamba zifatika zo kugenzura zashyizwe mubikorwa ahantu hashobora gukorerwa ubukode nubwiza bwa HPMC. Ubuhanga bwo gusesengura nka chromatografiya hamwe na chromatografi na rohologiya bikoreshwa mugusuzuma ibipimo nkuburemere bwa molecular, urwego rwo gusimbuza no gushushanya.
5. Ibiranga hydroxypropyl methylcellse (HPMC)
5.1 Umutungo wumubiri
HPMC ni cyera kuri off-yera, ifu idafite impumuro nziza ifite imiterere nziza ya firime. Ni hygroscopique kandi byoroshye gel yumurongo iyo yatangijwe mumazi. Kudakemurwa na HPMC biterwa nurwego rwo gusimburwa kandi bigira ingaruka kubintu nkubushyuhe na pH.
5.2 Imiterere yimiti
Imiterere yimiti ya HPMC igizwe na selile inyuma hamwe na hydroxyproppoyl na methyl. Ikigereranyo cya aba basimbuye, bigaragarira mu rwego rwo gusimburwa, kigena imiterere minini ya chimique bityo imitungo ya HPMC.
5.3 IYI GEREZA N'IMBERERE
HPMC iraboneka mumanota atandukanye hamwe na viscosity zitandukanye. Ibyamamare bya HPMC Ibisubizo bya HPMC ni ikintu cyingenzi mubisabwa nka faruceuticals, aho bigira ingaruka kumubiri wibiyobyabwenge, no kubaka, aho bigira ingaruka ku gikorwa cya minisiteri na paste.
5.4 Film-Filcting Numutungo
HPMC ikoreshwa cyane nka firime yahoze yikinyamakuru kandi nkumukozi wijimye muburyo butandukanye. Ubushobozi bwacyo bwa firime bufite agaciro mugutezimbere uburyo bwo guhiga ibiyobyabwenge, mugihe imitungo yayo ikabije yongera imiterere no gutuza ibicuruzwa byinshi.
6. Gusaba hydroxyPropyl methylcellse
6.1 Inganda za farumasi
Mu nganda za farumasi, HPMC ikoreshwa mu gutegura imiyoboro ikomeye yo mu kanwa nkibinini na capsules. Bikunze gukoreshwa nkumukozi wa binder, utunganijwe na firime. Imitungo igenzurwa na HPMC yorohereza ikoreshwa ryayo mu mahirwe arekura.
6.2 Inganda zubwubatsi
Mu rwego rwo kubaka, HPMC ikoreshwa nk'amazi agumana mu mazi, umubyimba kandi afata ibicuruzwa bishingiye ku byaro. Irongera ibikorwa bya minisiteri, irinda kugabanuka muburyo buhagaritse, kandi butezimbere imikorere rusange yibikoresho byubaka.
6.3 Inganda zibiri
HPMC ikoreshwa munganda zibiri nkigituba, stabilizer na emalisiier. Ubushobozi bwayo bwo gushiraho geles mugihe gito bituma bikwiranye nibisabwa bitandukanye, harimo isosi, imyambarire n'ibiribwa.
6.4 Amavuta yo kwisiga hamwe nibicuruzwa byitaweho
Mu kwisiga hamwe nibicuruzwa byitaweho, HPMC iboneka muburyo butandukanye bwo kubamo amavuta, amavuta na shampoos. Ifasha kunoza imiterere, gushikama no muri rusange imikorere yibi bicuruzwa.
6.5 Izindi nganda
Guhinduranya hpmc bigera mu zindi nganda, harimo n'imyambaro, irangi kandi ifatika, aho ishobora gukoreshwa nka romologiya ihindura abantu, abashinzwe kugumana amazi na Trickener.
7. UMWANZURO
HydroxyPropylmethylcellsellsells ni polymer itandukanye hamwe na porogaramu nyinshi. Synthesis ikoresha okide ya selile hamwe na prodeylene nkaibikoresho byibanze byibanze, kandi selile yahinduwe binyuze muburyo bwa hydroxy opleyeley na methylation. Kugenzurwa kuri izi ngingo mbisi hamwe nibibazo bishobora kubyara birashobora kubyara hpmc ifite imitungo yihariye kugirango yubahirize inganda zihariye. Kubwibyo, HPMC igira uruhare runini mugutezimbere imikorere n'imikorere yibicuruzwa munganda. Gukomeza gushakisha gushya no kunoza inzira yo gukora ifasha HPMC komeza ufite uruhare runini ku isoko ryisi yose.
Igihe cyohereza: Ukuboza-28-2023