I-Redispersible Latex Powder (RDP) sisixhobo sokwakha esibalulekileyo kwaye sisetyenziswa kakhulu kwizinto zokuncamathelisa zokwakha, izixhobo zodonga, izinto zomgangatho kunye nezinye iindawo. I-dispersibility yayo egqwesileyo, ukubambelela kunye nokuguquguquka kukunika inzuzo ebalulekileyo ngexesha lenkqubo yokwakha.
1. Ukulungiswa kwe-emulsion
Isinyathelo sokuqala sokwenza i-latex powder ephindwe kabini kukulungiswa kwe-emulsion. Oku ngokuqhelekileyo kwenziwa nge-emulsion polymerization. I-Emulsion polymerization yinkqubo yesigaba solwelo esenziwe ngokusasaza ngokulinganayo ii-monomers, i-emulsifiers, ii-initiators kunye nezinye izinto eziluhlaza emanzini. Ngexesha lenkqubo ye-polymerization, i-monomers i-polymerize phantsi kwesenzo sabaqalisi ukwenza amakhonkco e-polymer, ngaloo ndlela ivelisa i-emulsion ezinzileyo.
Iimonomers ezisetyenziswa ngokuqhelekileyo kwi-emulsion polymerization ziquka i-ethylene, i-acrylates, i-styrene, njl. Ngokuxhomekeke kwiipropati ezifunekayo, ii-monomers ezahlukeneyo zingakhethwa kwi-copolymerization. Ngokomzekelo, i-emulsion ye-ethylene-vinyl acetate copolymer (EVA) isetyenziswa ngokubanzi ekulungiseleleni i-latex powder edibeneyo ngenxa yokuchasana kwamanzi kunye nokunamathela.
2. Tshiza ukomisa
Emva kokuba i-emulsion ilungisiwe, kufuneka iguqulwe ibe ngumgubo owenziwe kwakhona we-latex powder. Eli nyathelo lidla ngokufezekiswa ngeteknoloji yokumisa isitshizi. Ukutshiza ukomisa yindlela yokomisa eguqula ngokukhawuleza izinto ezingamanzi zibe ngumgubo.
Ngethuba lokumisa inkqubo yokutshiza, i-emulsion i-atomized ibe ngamaconsi amahle ngokusebenzisa i-nozzle kwaye idibene nomoya oshushu oshushu. Amanzi akumathontsi akhawuleza abe ngumphunga, ize enye into eqinileyo eseleyo ijiye ibe ngamasuntswana omgubo. Isitshixo sokutshiza ukomisa kukulawula ukushisa kokumisa kunye nexesha lokuqinisekisa ubungakanani be-particle ye-latex powder kunye nokomisa okwaneleyo, ngelixa ugwema ukuthotywa kwe-thermal okubangelwa ukushisa okuphezulu.
3. Unyango lomphezulu
Ukuze kuphuculwe ukusebenza kunye nokuzinza kwe-latex powder ephindwe kabini, ubuso bayo buhlala buphathwa. Injongo ephambili yonyango lomphezulu kukunyusa ubuninzi be-powder, ukuphucula ukuzinza kwayo kokugcinwa kunye nokuphucula ukuphinda kuphinde kuphinde kuphinde kuphinde kuphinde kuphinde kuphinde kuphinde kuphinde kuphinde kuphindeke emanzini.
Iindlela eziqhelekileyo zonyango zonyango ziquka ukongezwa kwee-anti-caking agents, ii-coating agents kunye ne-surfactants. I-Anti-caking agents inokuthintela i-powder kwi-caking ngexesha lokugcinwa kwaye igcine i-fluidity yayo enhle; ii-coating agents ngokuqhelekileyo zisebenzisa ezinye iipolymers ezinyibilikayo emanzini ukuze zigqume i-latex powder ukukhusela ukungena kwamanzi; ukongezwa kwe-surfactants kunokuphucula ukuphinda kuphinde kuphinde kuphinde kwenzeke umgubo welatex ukwenzela ukuba ukhawuleze kwaye usasazwe ngokulinganayo emva kokongeza amanzi.
4. Ukupakishwa kunye nokugcinwa
Isinyathelo sokugqibela kwinkqubo yokuvelisa i-latex powder edispersible kukupakisha kunye nokugcinwa. Ukuze kuqinisekiswe umgangatho kunye nokusebenza kwemveliso, ingqwalasela kufuneka ihlawulwe ekukhuseleni ukufuma, ukungcola kunye nothuli ekubhabha ngexesha lenkqubo yokupakisha. Ngokuqhelekileyo i-latex powder ehlaziywayo ifakwe kwi-multi-layer paper bags okanye iiplastiki ezinokumelana okuhle komswakama, kwaye i-desiccant ifakwe ngaphakathi kwesikhwama ukukhusela umswakama.
Xa ugcina, i-latex powder ephinda ihlakazwe kufuneka ibekwe kwindawo eyomileyo, engenamoya, kude nelanga elithe ngqo kunye neendawo zokushisa eziphakamileyo, ukuthintela i-powder caking okanye ukuthotywa kokusebenza.
Inkqubo yokuvelisa i-latex powder edibeneyo iquka amanyathelo amaninzi afana nokulungiswa kwe-emulsion, ukomisa ukutshiza, ukunyangwa kwendawo, ukupakishwa kunye nokugcinwa. Ngokulawula ngokuchanekileyo iiparameters zenkqubo yekhonkco nganye, i-latex powder ehlaziywayo kunye nokusebenza okugqwesileyo kunye nomgangatho ozinzileyo unokuveliswa ukuhlangabezana neemfuno ezahlukeneyo zoshishino lwezixhobo zokwakha. Ngokuqhubela phambili okuqhubekayo kwethekhnoloji, inkqubo yokulungiselela i-latex powder ehlaziywayo iya kuba yinto ehambelana nokusingqongileyo kwaye isebenze kakuhle kwixesha elizayo, kwaye ukusebenza kwemveliso kuya kuphuculwa ngakumbi.
Ixesha lokuposa: Aug-27-2024