▲Hydroxypropyl methyl cellulose (HPMC)ni ifu yera idahumura, idasembuye kandi idahumanya. Iyo imaze gushonga neza mu mazi, hydroxypropyl methyl cellulose izakora colloid ibonerana kandi igaragara.
▲ Ibikoresho by'ingenzi bya hydroxypropyl methyl cellulose (HPMC): ipamba itunganyijwe, methyl chloride, propylene oxide, n'ibindi bikoresho fatizo, soda ya caustic, aside, toluene, isopropanol, nibindi.
Kugereranya ibyiza n'ibibi bya hydroxypropyl methyl cellulose:
1. Hydroxypropyl methyl cellulose nziza HPMC irarekuye kandi ifite ubucucike buto, ifite igipimo cya 0.3–0.4/ml.
HPMC yahinduwe ifite ubushyuhe bwiza kandi yumva iremereye, bitandukanye cyane n'ibicuruzwa nyabyo mu miterere yabyo.
2. Umuti w'amazi wa HPMC woroshye wa hydroxypropyl methyl cellulose usobanutse neza, utanga urumuri rwinshi, kandi amazi agumana igipimo cyo kubika > 97%.
Umuti w'amazi wa HPMC wavanzwe ni umwanda ugereranije, kandi igipimo cyo kubika amazi kiragoye kugera kuri 80%.
3. HPMC y'umwimerere ntigomba kugira impumuro ya ammonia, sitashi na alkoholi.
HPMC yahinduwe ishobora guhumurirwa ubwoko bwose bw'uburyohe, nubwo yaba idafite uburyohe, yumva iremereye.
4. Ifu ya HPMC ya hydroxypropyl methyl cellulose isukuye ifite fibrous munsi ya mikorosikopi cyangwa ikirahure gikuza.
HPMC yahinduwe ishobora kugaragara nk'ibintu bikomeye cyangwa kristu munsi ya mikorosikopi cyangwa ikirahuri gikuza.
Ni mu bihe bintu byagufasha kumenya ibyiza n'ibibi bya hydroxypropyl methyl cellulose?
1.Impamyabumenyi y'umweru
Nubwo umweru udashobora kumenya niba HPMC yoroshye gukoresha, kandi niba hongewemo ibikoresho byo kwera mu gihe cyo kuyikora, bizagira ingaruka ku bwiza bwayo. Ariko, ibicuruzwa byinshi byiza bifite umweru mwiza.
2. Ubuziranenge
Ubunoze bwa HPMC muri rusange bufite mesh 80 na mesh 100, kandi uko ubunoze burushaho kuba bwiza, muri rusange, niko burushaho kuba bwiza.
3. Kohereza amakuru
Shyirahydroxypropyl methyl cellulose (HPMC)mu mazi kugira ngo habeho koloyide ibonerana, kandi hagenzurwe uburyo urumuri rwayo runyura. Uko urumuri runyura hejuru, ni ko birushaho kuba byiza, bigaragaza ko hari ibintu bike bidashonga muri yo. Uburyo bwo kwinjira kw'imashini zikora ibintu bihagaze muri rusange ni bwiza, mu gihe ibyuma bitanga urumuri bihagaze nabi kurushaho.
4. Igipimo
Uko uburemere bw'ibintu byihariye burushaho kuba bwinshi, niko uburemere burushaho kuba bwiza. Ubwinshi bw'ibintu ni bwinshi, muri rusange kubera ko ingano y'ibintu byihariye birimo ari nyinshi, kandi ingano y'ibintu byihariye muri hydroxypropyl ikaba nyinshi, bituma amazi aguma neza kurushaho.
Igihe cyo kohereza ubutumwa: 25 Mata 2024