Ubu abantu benshi ntibazi byinshi kuri eteri ya hydroxypropyl starch. Batekereza ko nta tandukaniro riri hagati ya eteri ya hydroxypropyl starch na starch isanzwe, ariko si ko biri. Ingano ya eteri ya hydroxypropyl starch ikoreshwa mu bicuruzwa bya morti ni nto cyane, kandi ingano y’inyongera ya polar ishobora kugira ingaruka nziza.
Hydroxypropyl starch ether (HPS) ni ifu nziza yera iboneka binyuze mu guhindura ibimera karemano, igahinduka cyane, hanyuma ikanyuzwa mu ifu, nta pulasitiki ikoresha. Itandukanye rwose n'ifu isanzwe cyangwa ifu yahinduwe.
Kandi hydroxypropyl methyl cellulose, izwi kandi nka hypromellose, hydroxypropyl methyl red vitamine ether, igomba gukoresha cellulose y’ipamba nziza cyane nk’ibikoresho fatizo, hanyuma ikayikoresha lye kuri 35-40 ° C mu gihe cy’igice cy’isaha, Kanda, uceke cellulose, hanyuma ishaje neza kuri 35 ° C, kugira ngo impuzandengo ya polymerization ya fibre alkali yabonetse ibe mu rugero rusabwa. Shyira fibre alkali mu gikoresho cyo gupima etherification, ongeramo propylene oxide na methyl chloride mu buryo bukurikiranye, hanyuma uyishyireho ether kuri 50-80 ° C mu gihe cy’amasaha 5, kandi igitutu ntarengwa ni hafi 1.8MPa. Hanyuma ongeramo ingano ikwiye ya aside hydrochloric na aside oxalic mu mazi ashyushye kuri 90 ° C kugira ngo woze ibikoresho kugira ngo wongere ingano, hanyuma ubisukemo amazi ukoresheje centrifuge, hanyuma ubisukemo amazi inshuro nyinshi kugeza aho bitagira aho bibogamiye. Ikoreshwa cyane mu bwubatsi, mu nganda zikora imiti, mu marangi, mu buvuzi, mu nganda za gisirikare n'ahandi, nk'ibikoresho byo gukora filime, ibikoresho byo gufunga, gukwirakwiza, gusiga ibintu mu buryo buhamye, n'ibindi.
Hydroxypropyl starch ether ishobora gukoreshwa nk'uruvange rw'ibicuruzwa bishingiye kuri sima, ibikomoka kuri gypsum n'ibikomoka kuri kalisiyumu y'indimu. Ikorana neza n'izindi nganda. Iyo ikoreshejwe hamwe na hydroxypropyl methylcellulose ether HPMC, ishobora kugabanya igipimo cya hydroxypropyl methylcellulose (muri rusange kongeramo 0.05% bya HPS bishobora kugabanya igipimo cya HPMC ho 20%-30%)), kandi ishobora kugira ingaruka nziza, kugira ngo iteze imbere imiterere, hamwe no kurwanya uduce duto no kunoza imikorere.
Igihe cyo kohereza: 24 Mata 2023