I-VAE powders i-RDP (i-Redispersible) i-polymer powders isetyenziswa ngokuqhelekileyo izongezo kwishishini lokwakha.Yongezwa kwiimveliso ezisekelwe kwi-samente ezifana ne-adhesives tile, i-self-leveling compounds kunye neenkqubo zangaphandle zokugquma iindonga zokuphucula iimpawu ezifana nokusebenza, ukubambelela kunye nokuguquguquka.Ubungakanani beengqungquthela, ubuninzi be-bulk density kunye ne-viscosity ye-polymer powders ye-RD yimilinganiselo ebalulekileyo echaphazela ukusebenza kwabo kwezi zicelo.Eli nqaku liza kugxila kwindlela yokuvavanya i-viscosity ye-VAE powder RD ipolymer powder.
I-Viscosity ichazwa njengomlinganiselo wokuxhathisa kolwelo ukuba uhambe.Kwi-VAE powders i-polymer powders ye-RD, i-viscosity iyipharamitha ebalulekileyo echaphazela umbane kunye nokusebenza kwemixube ye-samente.Ukuphakama kwe-viscosity, kunzima ngakumbi ukuba umgubo udibanise namanzi, okubangela amaqhuma kunye nokusabalalisa okungaphelelanga.Ngoko ke, kubaluleke kakhulu ukugcina inqanaba le-viscosity ye-polymer ye-RD powder ukufezekisa umgangatho ohambelanayo wemveliso yokugqibela.
Indlela yokuvavanya i-viscosity ye-VAE powder ye-polymer powder iqhutyelwa ngokusebenzisa i-viscometer ejikelezayo.I-viscometer ejikelezayo ilinganisa i-torque efunekayo ukujikeleza i-spindle ngaphakathi kwesampuli ye-polymer powder enqunyanyiswe emanzini.I-spindle ijikeleza ngesantya esithile kwaye i-torque ilinganiswa nge-centipoise (cP).I-viscosity yepolymer powder ibalwa ngokusekelwe kwi-torque efunekayo ukujikeleza i-spindle.
La manyathelo alandelayo achaza inkqubo ye-Viscosity Test Method ye-VAE Powder RD Polymer Powder.
1. Ukulungiswa kwesampuli: Thatha isampuli yommeli we-polymer powder ye-RD kwaye ulinganise kwi-0.1 g ekufutshane.Dlulisela isampuli kwisitya esicocekileyo, esomileyo nesinetha.Rekhoda ubunzima besikhongozeli kunye nesampulu.
2. Ukusasaza i-polymer powder: Ukusasaza i-polymer powder emanzini ngokwemiyalelo yomenzi.Ngokuqhelekileyo, umgubo wepolymer uxutywe namanzi usebenzisa umxube wesantya esiphezulu.Xuba umgubo wepolymer kunye namanzi ubuncinci imizuzu emi-5 okanye kude kufumaneke umxube we-homogeneous.Isantya sokuxuba kunye nobude kufuneka buhambelane kulo lonke uvavanyo.
3. Umlinganiselo we-viscosity: sebenzisa i-viscometer ejikelezayo ukulinganisa i-viscosity ye-polymer powder suspension.Ubungakanani be-spindle kunye nesantya kufuneka kukhethwe ngokwe-viscosity elindelekileyo yepolymer powder.Ngokomzekelo, ukuba i-viscosity ephantsi ilindeleke, sebenzisa ubungakanani obuncinci be-spindle kunye ne-RPM ephezulu.Ukuba i-viscosity ephezulu ilindeleke, sebenzisa ubungakanani obukhulu be-spindle kunye nesantya esisezantsi.
4. Ukulinganisa: Ngaphambi kokuthatha imilinganiselo, linganisa i-viscometer ngokwemiyalelo yomenzi.Oku kubandakanya ukubeka inqaku le-zero kunye nokulinganisa kunye nezisombululo eziqhelekileyo ze-viscosity eyaziwayo.
5. Ukulinganisa i-torque: Beka i-rotor kwi-polymer powder suspension de ide ifakwe ngokupheleleyo.I-spindle akufuneki ichukumise ezantsi kwesikhongozeli.Qala ukujikeleza i-spindle kwaye ulinde ukufundwa kwe-torque ukuzinza.Rekhoda ukufundwa kwetorque kwi-centipoise (cP).
6. Ukuphindaphinda: Ubuncinci imilinganiselo emithathu yokuphindaphinda yathathwa kwisampuli nganye kunye ne-viscosity ephakathi ibalwe.
7. Ukucoca: Emva kokuba umlinganiselo ugqityiwe, hlambulula i-rotor kunye nesitya ngokucokisekileyo ngamanzi kunye ne-detergent.Hlanza ngamanzi adibeneyo kwaye wome ngononophelo.
I-viscosity ye-polymer powders ye-RD ichaphazeleka kwizinto ezininzi ezibandakanya ukushisa, i-pH kunye nokugxila.Ngoko ke, kubaluleke kakhulu ukulinganisa i-viscosity phantsi kweemeko ezisemgangathweni.Kwakhona, imilinganiselo ye-viscosity rhoqo kufuneka ithathwe ukuqinisekisa ukusebenza okuhambelanayo kwe-polymer powders ye-RD.
Isishwankathelo, indlela yokuvavanya i-viscosity ye-VAE powder i-polymer powder iluvavanyo olubalulekileyo lokumisela umbane kunye nokusebenza kweemveliso ezisekelwe kwi-samente.Uvavanyo kufuneka lwenziwe kusetyenziswa izixhobo ezisemgangathweni kunye neenkqubo zokufumana iziphumo ezichanekileyo nezinokuphinda zenziwe kwakhona.Imilinganiselo ye-Viscosity kufuneka ithathwe ngamaxesha ukuqinisekisa umgangatho we-polymer powders ye-RD.
Ixesha lokuposa: Jun-25-2023