Ukuhlanganiswa okungajulile, okudlala indima ebalulekile ekwenzeni ngcono ukusebenza kodaka oluhlanganisiwe, ama-akhawunti angaphezu kwama-40% wezindleko zezinto ezibonakalayo ku-wonduka omile. Iningi le-admixtures emakethe yasekhaya lihlinzekwa ngabakhiqizi bakwamanye amazwe, kanye nemithamo yezethenjwa yemikhiqizo nayo ihlinzekwa ngabahlinzeki. Izindleko zomkhiqizo wodaka oluhlanganisiwe zihlala ziphakeme ngakho-ke, futhi kunzima ukuwadumisa udaka olujwayelekile nodaka olubusayo ngenani elikhulu nobubanzi. Imikhiqizo yemakethe ephelele ilawulwa yizinkampani zakwamanye amazwe, futhi abakhiqizi bomuntu obomile abaxubekile banenzuzo ephansi kanye nokungabizi kwentengo okungekuhle; Ukusetshenziswa kwe-admixtures antula ohlelekile nocwaningo oluhlosiwe, futhi kulandela amafomula angaphandle. Lapha, esikuhlanganyela nani, siyini iqhaza le-hydroxypropyllylyll methylcellulose kuma-famixtures ajwayelekile wodaka oluxutshwe omile?
IHydroxypropyllylylyl Methylcellulose yinhlobonhlobo ye-cellulose imiphumela yayo nokusetshenziswa kwayo bekulokhu kukhula ngokushesha eminyakeni yamuva. I-Hydroxypropylylylyly yenziwe ngokotoni ocwengekile ngemuva kokwelashwa kwe-alkalization, kusetshenziswa i-propelene oxide kanye ne-methyl chloride njenge-etherelize Izinga lokufakwa esikhundleni ngokuvamile i-1.2 ~ 2.0. Izakhiwo zayo zihlukile ngokuya ngesilinganiso sokuqukethwe kwe-methoxyl nokuqukethwe kwe-hydroxypropyl. Izici ze-hydroxypropyllykyl methylcellulose kanjena:
1. I-Hydroxypropyllylylylyl ilulaza kalula emanzini abandayo, futhi izobhekana nobunzima ekunciphiseni emanzini ashisayo. Kepha izinga lokushisa layo le-gelation emanzini ashisayo liphakeme kakhulu kunalelo ye-methyl cellulose. I-solubity emanzini abandayo nayo yathuthukiswa kakhulu uma iqhathaniswa ne-methyl cellulose.
2. I-viscoxyprotity methylcellulose ihlobene nesisindo sayo samangqamuzana. Ubukhulu besisindo samangqamuzana, ukukhuphuka kwendlela. Ukushisa futhi kuthinta ukubonakala kwayo, njengoba izinga lokushisa liyanda, ukuhlakanipha kuyancipha. Kodwa-ke, ithonya lokubonakala kwalo okuphezulu nokushisa layo liphansi kunalelo ye-methyl cellulose. Isixazululo saso sizinzile lapho zigcinwa emazingeni okushisa asekamelweni.
I-3. Ukugcinwa kwamanzi kwe-hydroxypropylllylyllylylylylulose kuncike kwinani layo lokungezela, ukubonakala, njll.
I-4. I-Hydroxypropyllylyll methylcellose iqinile i-acid ne-alkali, bese kuthi isixazululo saso samanzi sizinzile kakhulu ebusweni bakwa-PH = 2 ~ 12. Amanzi e-caustic kanye nama-lime anomthelela omncane ekusebenzeni kwawo, kepha u-Alkali angasheshisa ukuchitheka kwawo futhi akhulise ukubonwa kwawo kancane. Hydroxypropyl methylcellulose is stable to common salts, but when the concentration of salt solution is high, the viscosity of hydroxypropyl methylcellulose solution tends to increase.
I-5. I-Hydroxypropyll methylcellulose ingahlanganiswa nama-polymers ancibilikayo amanzi ukuze wakhe umfaniswano nesixazululo esiphakeme esiphakeme. Njengotshwala be-polyvinyl, isitashi ether, gum yemifino, njll.
I-6. I-Hydroxypropyllylyll methylcellulose inokuphikiswa okungcono kwe-enzyme kune-methylcellulose, futhi amathuba okuwohloka kwe-enzymatic kwesixazululo sawo aphansi kunale ye-methylcellulose.
7. Ukunamathela kwe-hydroxypropylllylylyl to cutar yokwakha kuphakeme kunalokho kwe-methylcellulose.
Isikhathi sePosi: Meyi-09-2023