Hydroxypropyl methylcellulose, izwi kandi nka hypromellose na cellulose hydroxypropyl methyl ether, ikorwa muri cellulose y’ipamba nziza cyane kandi irahinduka cyane mu buryo bwihariye mu gihe cy’ubushyuhe bwa alkaline.
itandukaniro:
ibintu bitandukanye
Hydroxypropyl methylcellulose: ifu cyangwa uduce duto tumeze nk'udupira tw'umweru cyangwa umweru, turi mu bwoko butandukanye butari ioni mu ruvange rwa cellulose, iki gicuruzwa ni polymeri ya viscoelastic idakora kandi idakora.
Hydroxyethyl cellulose ni fibre y'umweru cyangwa umuhondo, idafite impumuro, idahumanya cyangwa ifu ikomeye, ibikoresho by'ingenzi ni alkali cellulose na ethylene oxide etherification, ikaba ari ether ya cellulose ishongeshwa idafite ionic.
Imikoreshereze iratandukanye
Mu nganda zikora amarangi, hydroxypropyl methylcellulose ifite ubushobozi bwo gushonga neza mu mazi cyangwa mu bintu bikomoka ku bimera nk'imashini igabanya ubushyuhe, igabanya ubushyuhe n'igabanya ubushyuhe. Polyvinyl chloride ikoreshwa nk'imashini ikuraho irangi mu gukurura polimeri mu gutegura polyvinyl chloride, ikoreshwa cyane mu ruhu, mu mpapuro, mu kubungabunga imbuto n'imboga, mu myenda no mu zindi nganda.
Hydroxypropyl methylcellulose: idashobora gushonga mu ethanol yuzuye, ether, acetone; ishongeshwa mu gisubizo cya colloidal gitanga urumuri cyangwa turbid mu mazi akonje, ikoreshwa cyane mu gusiga, wino, fibre, gusiga amarangi, gukora impapuro, amavuta yo kwisiga, imiti yica udukoko, imyunyu ngugu. Itunganywa ry'ibicuruzwa, inganda zigarura amavuta n'imiti.
gushonga gutandukanye
Hydroxypropyl methylcellulose: idashobora gushonga mu ethanol, ether, acetone; ishongera mu gisubizo cya colloidal gisobanutse neza cyangwa gishyushye gato mu mazi akonje.
Hydroxyethyl cellulose (HEC): Ishobora gutegura ibisubizo mu bwoko butandukanye bwa viscosity, kandi ifite ubushobozi bwiza bwo gushonga umunyu kuri electrolytes.
Igihe cyo kohereza: Ukuboza-01-2022