Hydroxypropylmethylcellulose (HPMC) ni urugingo rwimikorere myinshi rukoreshwa cyane mubikorwa byubwubatsi. Irakoreshwa cyane mubikorwa bya putty nkuko itezimbere imikorere rusange hamwe nubwiza bwa putty. Muri iki kiganiro, tuzasesengura ishyirwa mu bikorwa rya HPMC muri putty, dusesengure ibibazo bishobora kuvuka mugihe cyo kuyikoresha, kandi dusangire inama zuburyo bwo kwirinda ibyo bibazo.
Icyambere, reka turebe neza ibiranga HPMC. Ni selile ya nonionic selile, gushonga mumazi hamwe na solge organic. Imiterere yihariye ya molekulari itanga ubwiza buhebuje, kubika amazi hamwe nibintu bifatika. Kubwibyo, nibyiza byongeweho kubishyira mubikorwa.
HPMC irashobora gukoreshwa nkibyimbye, binder na emulsifier muburyo bworoshye. Ifite amazi meza cyane afasha kurinda gushira vuba vuba. Itera kandi imbaraga za putty kuri substrate, bigatuma iramba. Iyi mico ituma HPMC ari ingenzi mubintu byiza byo mu rwego rwo hejuru.
Ariko, ibibazo bimwe bishobora kubaho mugihe HPMC ikoreshwa muri putty. Ikibazo cya mbere nuko HPMC yunvikana kuri pH nihinduka ryubushyuhe. Niba pH yuburyo bwa putty ari acide cyane, birashobora gutuma HPMC itakaza ububobere. Mugihe kimwe, niba ubushyuhe buri hejuru cyane, bizatera HPMC kumanuka, bizagira ingaruka kumikorere ya putty.
Ikindi kibazo gishobora kuvuka ni ugusebanya. Niba HPMC itavanze neza nibindi bikoresho biri muri formulaire, irashobora gukora clumps cyangwa clumps. Ibibyimba bigira ingaruka kumiterere ya putty, bigatuma bitoroha kandi bigoye kubishyira mubikorwa.
Kugira ngo wirinde ibyo bibazo, amategeko y'ibanze agomba gukurikizwa mugihe ukoresheje HPMC muri porogaramu za Putty. Ubwa mbere, birakenewe guhitamo ubwoko bwa HPMC bukwiye. Ubwoko butandukanye bwa HPMC bushobora kugira ibintu bitandukanye, kubwibyo rero ubwoko bwukuri bugomba guhitamo kubisabwa runaka.
Icya kabiri, ni ngombwa kuvanga neza HPMC nibindi bikoresho muburyo bwo gushira. Ibi bizafasha kwirinda ibibyimba cyangwa ibibyimba. Ni ngombwa kandi gukoresha uburyo bwiza bwo kuvanga kugirango ushireho putty ivanze neza.
Icya gatatu, witondere pH nubushyuhe bwa formulaire. Ni ngombwa kwemeza ko pH iri murwego rusabwa kubwoko bwihariye bwa HPMC ikoreshwa. Ni ngombwa kandi gukurikirana ubushyuhe bwimiterere no kuyigumana murwego rusabwa kugirango wirinde kwangirika kwa HPMC.
Muncamake, HPMC nikintu cyingenzi muburyo bwiza bwo gushira. Itanga uburyo bwiza bwo gufata amazi, gufatira hamwe no kuranga ubwiza bushobora kuzamura imikorere muri rusange hamwe nubwiza bwa putties. Nyamara, ibibazo bimwe bishobora kubaho mugihe cyo kuyikoresha, nko kumva ko pH ihindagurika ryubushyuhe, guteka, nibindi. Ukurikije amategeko amwe amwe mugihe ukoresheje HPMC, ibyo bibazo birashobora kwirindwa kandi hashobora kuboneka ubuziranenge bwiza.
Igihe cyo kohereza: Nyakanga-27-2023