Izakhiwo ze-Hydroxypropyl methylcellulose HPMC

Ama-cellulose ether asetshenziswa kakhulu ahlanganisa i-HEC, i-HPMC, i-CMC, i-PAC, i-MHEC nokunye okunjalo. I-non-ionic water-soluble cellulose ether inokunamathela, ukuzinza kokuhlakazeka kanye namandla okugcina amanzi, futhi iyisengezo esisetshenziswa kakhulu ezintweni zokwakha. I-HPMC, i-MC noma i-EHEC isetshenziswa ekwakhiweni okuningi okusekelwe kusimende noma ku-gypsum, njengodaka lwamatshe, udaka lukasimende, ukunamathela kukasimende, igypsum, ingxube kasimende, ne-milky putty, njll., engathuthukisa ukuhlakazeka kukasimende noma isihlabathi. futhi uthuthukise kakhulu i-Adhesion, ebaluleke kakhulu ku-plaster, usimende we-tile kanye ne-putty. I-HEC isetshenziswa kusimende, hhayi nje njenge-retarder, kodwa futhi njenge-ejenti yokugcina amanzi. I-HEHPC inalolu hlelo lokusebenza.

Imikhiqizo ye-Hydroxypropyl methylcellulose HPMC ihlanganisa izakhiwo eziningi ezibonakalayo namakhemikhali zibe yimikhiqizo eyingqayizivele esebenzisa izinto ezihlukahlukene kanye nezakhiwo:

Ukugcinwa kwamanzi: Kungagcina amanzi ezindaweni ezinezimbotshana ezifana namabhodi usimende odongeni nezitini.

Ukwakhiwa kwefilimu: Ingenza ifilimu esobala, eqinile futhi ethambile enokumelana okuhle kakhulu kwamafutha.

Ukunyibilika kwe-Organic: Umkhiqizo ungancibilika kwezinye izinyibilikisi zemvelo, njengezilinganiso ezifanele ze-ethanol/amanzi, i-propanol/amanzi, i-dichloroethane kanye nesistimu yokuncibilikisa eyakhiwe ngezincibilikizi ezimbili eziphilayo.

I-Thermal Gelation: Uma isixazululo esinamanzi somkhiqizo sishiswa, ijeli izokwakheka, futhi ijeli elakhiwe lizobuyela emuva libe yisixazululo lapho selipholile.

Umsebenzi ongaphezulu: Ihlinzeka ngomsebenzi ongaphezulu ekuxazululeni ukuze kuzuzwe i-emulsification edingekayo kanye nama-colloid avikelayo, kanye nokuqiniswa kwesigaba.

Ukumiswa: I-Hydroxypropyl methylcellulose ivimbela izinhlayiya eziqinile ukuthi zingahlali, ngaleyo ndlela ivimbele ukwakheka kwezinsalela.

I-Protective Colloids: Vimbela amaconsi kanye nezinhlayiya ukuthi zihlangane noma zihlangane.

I-Soluble Water : Umkhiqizo ungancibilika emanzini ngamanani ahlukene, ukugxila okuphezulu kukhawulelwe kuphela yi-viscosity.

Ukungangeni kwe-ionic okungeyona i-ionic: Umkhiqizo i-ether ye-cellulose engeyona i-ionic engahlangani nosawoti wensimbi noma amanye ama-ion ukuze kwakhe imvula engancibiliki.

Ukuzinza kwe-Acid-base: kulungele ukusetshenziswa ebangeni le-PH3.0-11.0.


Isikhathi sokuthumela: Sep-22-2022