Manje abantu abaningi abazi okuningi nge-hydroxypropyl starch ether. Bacabanga ukuthi kunomehluko omncane phakathi kwe-hydroxypropyl starch ether ne-starch evamile, kodwa akunjalo. Inani le-hydroxypropyl starch ether elisetshenziswa emikhiqizweni ye-mortar lincane kakhulu, futhi inani lokwengeza le-polar lingafeza imiphumela emihle yekhwalithi.
I-Hydroxypropyl starch ether (HPS) iyimpuphu emhlophe ecolekile etholakala ngokushintsha izitshalo zemvelo, ishiswe kakhulu, bese yomiswa nge-spray, ngaphandle kwama-plasticizer. Ihluke ngokuphelele ku-starch evamile noma i-starch eshintshiwe.
Futhi i-hydroxypropyl methyl cellulose, eyaziwa nangokuthi i-hypromellose, i-hydroxypropyl methyl red vitamin ether, iwukusebenzisa i-cotton cellulose emsulwa kakhulu njengezinto zokusetshenziswa, bese uyiphatha nge-lye ku-35-40 ° C isigamu sehora, Cindezela, uchoboze i-cellulose, bese ukhula kahle ku-35 ° C, ukuze izinga elimaphakathi le-polymerization ye-alkali fiber etholiwe libe ngaphakathi kobubanzi obudingekayo. Faka i-alkali fiber eketheni ye-etherification, engeza i-propylene oxide ne-methyl chloride ngokulandelana, bese uyi-etherify ku-50-80 ° C amahora ama-5, kanti ingcindezi ephezulu ingaba ngu-1.8MPa. Bese ufaka inani elifanele le-hydrochloric acid ne-oxalic acid emanzini ashisayo ku-90 ° C ukuze ugeze izinto ukuze wandise ivolumu, bese uzikhipha emanzini nge-centrifuge, bese ekugcineni uzigeza ngokuphindaphindiwe ukuze zingabi nhlangothi. Kusetshenziswa kabanzi ekwakheni, embonini yamakhemikhali, ngopende, ngemithi, embonini yezempi nakweminye imikhakha, ngokulandelana njenge-ejenti yokwakha ifilimu, i-binder, i-dispersant, i-stabilizer, i-thickener, njll.
I-Hydroxypropyl starch ether ingasetshenziswa njengengxube yemikhiqizo esekelwe kusimende, imikhiqizo esekelwe ku-gypsum kanye nemikhiqizo ye-calcium ye-lime. Ihambisana kahle nezinye izingxube zokwakha. Uma isetshenziswa kanye ne-hydroxypropyl methylcellulose ether HPMC, inganciphisa umthamo we-hydroxypropyl methylcellulose (ngokuvamile ukwengeza u-0.05% we-HPS kunganciphisa umthamo we-HPMC cishe ngo-20%-30%)), futhi ingadlala umphumela wokujiya, ukukhuthaza isakhiwo sangaphakathi, ngokumelana okungcono kokuqhekeka kanye nokusebenza okuthuthukisiwe.
Isikhathi sokuthunyelwe: Ephreli-24-2023