I-VAE powders RDP (Redispersible) izimpushana ze-polymer zivame ukusetshenziswa embonini yezokwakha. Yengezwa emikhiqizweni esekwe kusimende njengezinamatheliso zamathayili, izinhlanganisela ezizilinganisa ngokwazo kanye nezinhlelo zokuvala udonga zangaphandle ukuze kuthuthukiswe izakhiwo ezifana nokusebenza, ukunamathela kanye nokuguquguquka. Usayizi wezinhlayiyana, ukuminyana kwenqwaba kanye ne-viscosity ye-RD polymer powders kuyimingcele ebalulekile ethinta ukusebenza kwabo kulezi zinhlelo zokusebenza. Lesi sihloko sizogxila endleleni yokuhlola i-viscosity ye-VAE powder RD polymer powder.
I-viscosity ichazwa njengesilinganiso sokumelana koketshezi nokugeleza. Ku-VAE powders RD polymer powders, i-viscosity iyipharamitha ebalulekile ethinta uketshezi nokusebenza kwezingxube zikasimende. Lapho i-viscosity iphezulu, kuba nzima nakakhulu ukuthi impushana ixubane namanzi, okuholela ezigangeni kanye nokuhlakazeka okungaphelele. Ngakho-ke, kubaluleke kakhulu ukugcina izinga le-viscosity le-polymer ye-RD powder ukuze uzuze ikhwalithi ehambisanayo yomkhiqizo wokugcina.
Indlela yokuhlola i-viscosity ye-VAE powder RD polymer powder yenziwa kusetshenziswa i-viscometer ejikelezayo. I-viscometer ejikelezayo ikala i-torque edingekayo ukuze kuzungeziswe insipho ngaphakathi kwesampula yempushana ye-polymer elenga emanzini. I-spindle ijikeleza ngesivinini esithile futhi i-torque ikalwa nge-centipoise (cP). I-viscosity ye-polymer powder ibe isibalwa ngokusekelwe ku-torque edingekayo ukuze ujikeleze i-spindle.
Izinyathelo ezilandelayo zichaza inqubo ye-Viscosity Test Method ye-VAE Powder RD Polymer Powder.
1. Ukulungiswa kwesampula: Thatha isampula emele i-RD polymer powder bese ukala ku-0.1 g eseduze. Dlulisela isampula esitsheni esihlanzekile, esomile futhi esinetiyela. Rekhoda isisindo sesitsha nesampula.
2. Hlakaza impushana ye-polymer: Hlakaza impushana ye-polymer emanzini ngokuvumelana neziqondiso zomenzi. Ngokuvamile, i-polymer powder ixutshwa namanzi kusetshenziswa umxube wejubane eliphezulu. Hlanganisa i-polymer powder namanzi okungenani imizuzu engu-5 noma kuze kutholakale ingxube ye-homogeneous. Isivinini sokuxuba nobude besikhathi kufanele kuhambisane phakathi nokuhlolwa.
3. Isilinganiso se-viscosity: sebenzisa i-viscometer ejikelezayo ukukala i-viscosity ye-polymer powder suspension. Usayizi wokuphotha kanye nesivinini kufanele kukhethwe ngokuya nge-viscosity elindelekile ye-polymer powder. Isibonelo, uma i-viscosity ephansi ilindelwe, sebenzisa usayizi omncane wokuphotha kanye ne-RPM ephezulu. Uma kulindeleke i-viscosity ephakeme, sebenzisa usayizi omkhulu wokuphotha kanye nesivinini esiphansi.
4. Ukulinganisa: Ngaphambi kokuthatha izilinganiso, linganisa i-viscometer ngokwemiyalelo yomkhiqizi. Lokhu kuhlanganisa ukusetha iphoyinti elinguziro nokulinganisa ngezixazululo ezijwayelekile ze-viscosity eyaziwayo.
5. Linganisa i-torque: Beka i-rotor ku-polymer powder ukumiswa kuze kube yilapho icwiliswa ngokuphelele. I-spindle akufanele ithinte phansi kwesitsha. Qala ukuphotha i-spindle bese ulinda ukuthi ukufundwa kwetorque kuzinze. Rekhoda ukufundwa kwetorque ku-centipoise (cP).
6. Phinda futhi: Okungenani izilinganiso zokuphindaphinda ezintathu zathathwa ngesampula ngayinye futhi i-viscosity emaphakathi ibaliwe.
7. Ukuhlanza: Ngemva kokuba ukulinganisa kuqediwe, hlanza i-rotor kanye nesitsha kahle ngamanzi kanye nesihlanzi. Hlanza ngamanzi a-distilled futhi wome ngokucophelela.
I-viscosity ye-RD polymer powders ithintwa yizici eziningana ezihlanganisa izinga lokushisa, i-pH nokugxila. Ngakho-ke, kubaluleke kakhulu ukukala i-viscosity ngaphansi kwezimo ezijwayelekile. Futhi, izilinganiso ze-viscosity ezijwayelekile kufanele zithathwe ukuze kuqinisekiswe ukusebenza okungaguquki kwe-RD polymer powders.
Ngamafuphi, indlela yokuhlola i-viscosity ye-VAE powder RD polymer powder iyisivivinyo esibalulekile sokunquma uketshezi nokusebenza kwemikhiqizo esekwe usimende. Ukuhlola kufanele kwenziwe kusetshenziswa amathuluzi nezinqubo ezijwayelekile ukuze kutholwe imiphumela enembile nengaphinda ikhiqizeke. Izilinganiso ze-viscosity kufanele zithathwe ngezikhathi ezithile ukuze kuqinisekiswe ikhwalithi ye-RD polymer powders.
Isikhathi sokuthumela: Jun-25-2023