HPMC (HydroxyPropyl Methylcellsellse) ni ikigo cya polymer cyo mu mirire myinshi ikoreshwa cyane mubuvuzi, ibiryo ninganda. Ikozwe muri selile karemano yubugari kandi ifite amazi meza no gutuza. Kubyerekeye niba HPMC ishobora guseswa mumazi ashyushye, igomba gusesengurwa nubusabane hagati yimiterere yayo yo gusebanya nubushyuhe bwamazi.
1. Ibiranga ibya HPMC
HPMC ni ugukemura amazi meza ether ether ishobora gushonga mumazi akonje kandi agakora umucyo cyangwa ibintu byoroshye. Kudakemuwe biragira ingaruka cyane kubushyuhe, bugaragarira cyane cyane mubice bikurikira:
Ubushyuhe buke buke: Mu mazi akonje (mubisanzwe munsi ya 40 ° C), ibice bya HPMC birashobora gukurura amazi no kubyimba byihuse, gahoro gahoro ushonga igisubizo kimwe.
Amazi ashyushye atagaragara: HPMC ihumewe mumazi yubushyuhe bwinshi, ariko irashobora gutatanwa kugirango ihagarike ihagarikwa. Iyo amazi akonje ku bushyuhe bukwiye, ibice bitangira gushonga.
2. Kugabanya iseswa mumazi ashyushye
Imikorere ya HPMC mumazi ashyushye afitanye isano rya hafi nubushyuhe na sisitemu yo gukemura:
Ntabwo uhungabanye mumazi ashyushye: mubushyuhe bwinshi (mubisanzwe birenga 60 ° C) ibidukikije, ibice bya HPMC bizabura byihuse no gukora imiterere idahwitse. Iki kintu cyitwa "Gelation yubushyuhe", ni ukuvuga, molekile ya hpmc igiteranya mumazi ashyushye binyuze mumazi meza.
Uburyo bukwiye bwo kuvura: Ongeraho HPMC kumazi ashyushye hanyuma ukangurira neza kugirango ukore itara rihamye. Mugihe ubushyuhe butonyanga, ibintu bya gelation delacion byakuweho, kandi ibice bizarohereza amazi hanyuma bishonga buhoro buhoro.
3. Uburyo bwo kuvugurura mubikorwa bifatika
Mu rwego rwo kunoza imikorere ya HPMC no guhuriza hamwe igisubizo, uburyo bukurikira bukoreshwa:
Uburyo bushyushye kandi bukonje buvanga: Banza Ongeraho HPMC kumazi ashyushye kuri 70 ° C kugirango uyasane kugirango wirinde agglomeration, hanyuma ukomeze kubyutsa mugihe cyo gukonjesha kugeza igihe gishonga rwose.
Ifu yumye mbere yuburyo: Kuvanga HPMC hamwe nibindi byaha byoroshye (nk'isukari), hanyuma wongere amazi akonje kugirango ashongesheje, ashobore kongera umuvuduko.
4. INTEGO
Irinde ubushyuhe bukabije: HPMC irashobora gutakaza igisubizo hejuru yubushyuhe bwa gelale (mubisanzwe hagati ya 60-75 ° C).
Kangura neza: Menya neza ko ibice bitatanye neza mugihe wongeyeho amazi kugirango wirinde gushiraho ibibyimba bidashoboka.
HPMC ntabwo ikundwa mumazi ashyushye, ariko irashobora gutatana mumazi ashyushye kugirango ahagarike, azashonga nyuma yo gukonja. Kubwibyo, uburyo bukwiye bwo kutuvumburwa ni ngombwa kubikorwa byayo. Mubyiciro, ibisabwa na kabiri bigomba guhindurwa ukurikije ibikenewe byihariye kugirango ugire gukina byuzuye, bihamye cyangwa imitungo yo gukora firime cyangwa film.
Igihe cyagenwe: Feb-15-2025