Muri iki gihe, abantu benshi ntibazi byinshi kuri hydroxypropyl starch ether. Batekereza ko hari itandukaniro rito hagati ya hydroxypropyl krahisi ether na krahisi isanzwe, ariko sibyo. Hydroxypropyl krahisi ether ikoreshwa muke mubicuruzwa bya minisiteri, kandi umubare wongeyeho mukarere ka polar urashobora kugera kubintu byiza.
Hydroxypropyl starch ether (HPS) ni ifu yera yera iboneka mubihingwa bisanzwe nkibikoresho fatizo, byahinduwe, etherifike cyane, hanyuma bitera spray-yumye, idafite plastike. Iratandukanye rwose na krahisi isanzwe cyangwa yahinduwe
Hydroxypropyl methyl selulose, izwi kandi nka hypromellose na hydroxypropyl methyl vitamine itukura ya vitamine, ikozwe mu ipamba rya selile nziza cyane nk'ibikoresho fatizo, bivurwa na lye kuri 35-40 ° C mu gihe cy'isaha y'isaha, bikanyunyuzwa, selile ikabikwa, kandi igasaza uko bikwiye kuri 35 ° C, kuburyo impuzandengo ya polymerisation ya fibre ya alkali yabonetse iri murwego rusabwa. Shira fibre ya alkali mumasafuriya ya etherification, ongeramo okiside ya propylene na methyl chloride ikurikiranye, etherify kuri 50-80 ° C mumasaha 5, kandi umuvuduko ntarengwa ni 1.8MPa. Noneho shyiramo urugero rwa acide hydrochloric na aside ya oxyde mumazi ashyushye kuri 90 ° C kugirango ukarabe ibikoresho kugirango wongere amajwi, hanyuma ubishiremo umwuma hamwe na centrifuge, hanyuma ubyoze inshuro nyinshi kugirango utabogamye. Byakoreshejwe cyane mubwubatsi, inganda zimiti, amarangi, ubuvuzi, inganda za gisirikare nizindi nzego, nkibikorwa byo gukora firime, guhuza, gutatanya, stabilisateur, kubyimba, nibindi.
Hydroxypropyl krahisi ether irashobora gukoreshwa nkimvange yibicuruzwa bishingiye kuri sima, ibicuruzwa bishingiye kuri gypsumu nibicuruzwa bya calcium. Ifite guhuza neza nizindi nyubako zubaka. Ikoreshejwe hamwe na hydroxypropyl methylcellulose ether HPMC, irashobora kugabanya urugero rwa hydroxypropyl methylcellulose (muri rusange wongeyeho 0,05% ya HPS irashobora kugabanya urugero rwa HPMC hafi 20% -30%), kandi irashobora kugira uruhare runini. Itezimbere imiterere yimbere, irwanya neza guhangana no gukora neza.
Igihe cyo kohereza: Apr-13-2023