ethula:
Ama-cellulose ethers asetshenziswa kakhulu embonini yezokwakha ngenxa yokugcinwa kwawo kahle kwamanzi, ukuqina kanye nezakhiwo zokubopha. Bathuthukisa ukugeleza nokucutshungulwa kwezinto ezisekelwe kusimende futhi bathuthukise izakhiwo zemishini zomkhiqizo wokugcina. Ama-putty avame ukusetshenziswa embonini yezokwakha ukugcwalisa imifantu, izimbobo nokunye ukungapheleli ezindongeni nophahla. Ukusetshenziswa kwe-cellulose ethers kuma-putty powders kungathuthukisa ukusebenza, ukubeka isikhathi kanye nekhwalithi yomkhiqizo jikelele. Lesi sihloko sizoxoxa ngomphumela wama-viscosities ahlukene we-cellulose ethers ku-putty powder.
Izinhlobo ze-cellulose ethers:
Kunezinhlobo ezahlukene ze-cellulose ethers ezihlanganisa i-methylcellulose (MC), i-hydroxypropylmethylcellulose (HPMC), i-ethylcellulose (EC) ne-carboxymethylcellulose (CMC). I-HPMC iyi-ether ye-cellulose ethandwayo embonini yezokwakha ngenxa yokugcinwa kwayo kahle kwamanzi, ukujiya kanye nezakhiwo zokunamathela. I-HPMC iza ngama-viscosities ahlukene, ukusuka phansi kuye phezulu.
Umphumela we-cellulose ether ku-putty powder:
I-putty powder isetshenziselwa ukugcwalisa imifantu, izimbobo nokunye ukungapheleli ezindongeni nophahla. Ukusetshenziswa kwe-cellulose ethers kuma-putty powders kungathuthukisa ukusebenza kanye nesikhathi sokusetha somkhiqizo. I-cellulose ether ingaphinde ithuthukise ukusebenza nokunamathela kwe-putty powder. Okulandelayo umphumela wama-viscosities ahlukene we-cellulose ethers ku-putty powder:
1. I-HPMC ye-viscosity ephansi:
I-viscosity ephansi ye-HPMC ingathuthukisa uketshezi nokusebenza kwe-putty powder. Iphinde ithuthukise isikhathi sokusetha somkhiqizo. I-Low-viscosity HPMC inezinga lokushisa eliphansi le-gelation, elingavimbela i-putty powder ekubeni lukhuni ngokushesha. Kungase futhi kuthuthukise ukunamathela nokuhlangana komkhiqizo. I-viscosity ephansi ye-HPMC ilungele i-putty powder edinga ukusebenza kahle nokushelela.
2. I-HPMC ye-viscosity emaphakathi:
I-viscosity emaphakathi i-HPMC ingathuthukisa izakhiwo ze-thixotropic ze-putty powder. Kungase futhi kuthuthukise ukugcinwa kwamanzi nokusebenza kwesibopho komkhiqizo. I-Medium-viscosity ye-HPMC ingathuthukisa izici zomshini zomkhiqizo, njengamandla nokuqina. Ifanele i-putty powder edinga ukugcinwa kwamanzi okuhle nokubumbana.
3. I-HPMC ene-viscosity ephezulu:
I-viscosity ephezulu ye-HPMC ingathuthukisa ukusebenza kwe-putty kanye nokuqiniswa kwe-anti-sag. Kungase futhi kuthuthukise ukugcinwa kwamanzi nokusebenza kwesibopho komkhiqizo. I-viscosity ephezulu ye-HPMC ingathuthukisa izakhiwo zomshini zomkhiqizo, njengamandla nokuqina. Ilungele i-putty powder edinga ukuqina okuphezulu nokusebenza kwe-anti-sag.
Ekuphetheni:
Ama-cellulose ethers asetshenziswa kakhulu embonini yezokwakha ngenxa yokugcinwa kwawo kahle kwamanzi, ukuqina kanye nezakhiwo zokubopha. I-HPMC isiphenduke i-ether cellulose ethandwayo embonini yezokwakha ngenxa yezakhiwo zayo ezinhle kakhulu. I-HPMC iza ngama-viscosities ahlukene, ukusuka phansi kuye phezulu. Ukusetshenziswa kwama-cellulose ether anama-viscosity ahlukene kungathuthukisa ukusebenza, isikhathi sokusetha, ukusebenza kwe-thixotropic, ukugcinwa kwamanzi, ukusebenza kwebhondi kanye nezakhiwo zemishini ze-putty powder. Ukusetshenziswa kwe-cellulose ethers kungathuthukisa ikhwalithi nokusebenza kwe-putty powders, okubenza bafanelekele izinhlelo zokusebenza ezihlukahlukene embonini yezokwakha.
Isikhathi sokuthumela: Jul-20-2023