pele. Pele utloisisa hore na ke engphofshoana ea polima e ka qhaloang hape.
Dispersible polymer powders ke polima e phofshoana e entsoeng ka emulsion ea polymer ka mokhoa o nepahetseng oa ho omisa (le khetho ea li-additives tse loketseng). Phofo e omeletseng ea polymer e fetoha emulsion ha e kopana le metsi, 'me e ka felloa ke metsi hape nakong ea ho kopanya le ho thatafatsa seretse, e le hore likaroloana tsa polymer li thehe sebopeho sa' mele oa polymer ka seretse, se tšoanang le ts'ebetso ea emulsion ea polymer, e ka ntlafatsang seretse sa samente. phello ea thobalano. Emulsion phofo e fetotsoeng seretse se bitsoa seretse se omileng (se tsejoang hape e le seretse se omileng se tsoakiloeng, seretse se omileng se tsoakiloeng). Kaha phofo e omeletseng ha e hloke ho nahana ka tlhahiso ea emulsion le botsitso joaloka li-emulsion tsa polymer, motsoako o monyenyane o ka etsa hore seretse se finyelle thepa e lakatsehang, 'me se na le melemo ea ho paka habonolo, ho boloka, ho tsamaisa le ho fana ho feta li-emulsion, antifreeze le ho se kholo ea hlobo, Bothata ba libaktheria tse phelang, le melemo ea hore e ka etsoa sehlahisoa se le seng le sephutheloana se le seng. lehlabathe, 'me e ka sebelisoa ka mor'a ho tšela metsi.
Ha o kenya kopo, kopanya le ho paka lehlabathe, samente, phofo e omeletseng ea emulsion le li-additives tse ling esale pele, 'me u hloka feela ho eketsa palo e itseng ea metsi nakong ea kaho ea setšeng ho etsa seretse sa phofo se omileng ka ts'ebetso e ntle. Ntho ea mantlha ea tlhahiso ea phofo ea emulsion e omeletseng ke hore likaroloana tsa polymer ka mor'a hore ho phatlalatsoe hape ha phofo ea latex e bonts'a boholo ba karoloana kapa ho hasana ha likaroloana tse tšoanang le tsa pele tsa emulsion polymer particles. Palo e itseng ea colloid e sireletsang e kang joala ea polyvinyl e lokela ho kenngoa ho emulsion, e le hore phofo ea latex e ka boela ea qhalakanngoa ka emulsion ha e kopana le metsi. Ke feela ka dispersibility e ntle moo phofo ea latex e ka finyellang phello e ntle ka ho fetisisa. . Hangata phofo ea polymer e senyehang ke phofo e tšoeu. Metsoako ea eona e kenyelletsa:
Resin ea polymer: E fumaneha karolong ea mantlha ea likaroloana tsa phofo ea rabara, hape ke karolo ea mantlha ea phofo ea polima e ka sebelisoang hape.
Keketso (ka hare): hammoho le resin, e bapala karolo ea ho fetola resin. Li-additives (ka ntle): Lisebelisoa tse ling li eketsoa ho eketsa ts'ebetso ea phofo ea polymer e qhalakahang.
Protective colloid: lera la thepa ea hydrophilic e phuthetsoeng holim'a likaroloana tsa phofo tsa latex tse ka sebelisoang hape, colloid e sireletsang ea phofo e ngata ea latex e qhalakantsoeng ke joala ba polyvinyl.
Anti-caking agent: e ntle ea liminerale filler, haholo-holo e sebelisetsoang ho thibela phofo ea rabara hore e se ke ea etsoa nakong ea polokelo le lipalangoang le ho thusa ho phalla ha phofo ea rabara (e lahletsoeng mekotleng ea pampiri kapa litanka.)
U ka tseba joang boleng ba phofo ea latex e ka sebelisoang hape?
Mokhoa oa 1, mokhoa oa molora
Nka palo e itseng ea phofo ea latex e ka sebelisoang hape, e behe ka har'a sejana sa tšepe ka mor'a ho lekanya, e futhumale ho fihlela ho likhato tse ka bang 500, ka mor'a hore u sire ka mocheso o phahameng oa likhato tse 500, ue pholile mocheso oa kamore, 'me u be boima hape. Boima bo bobebe le boleng bo botle.
Mokhoa oa bobeli, mokhoa oa ho lokisa
Nka palo e itseng ea redispersible latex phofo 'me e qhibilihe ka makhetlo a 5 boima ba metsi, hlohlelletsa hantle' me ue tlohele ho ema metsotso e 5 pele u shebella. Ha e le hantle, li-inclusions tse fokolang tse lulang karolong e ka tlaase, li ntlafatsa boleng ba phofo ea polymer e ka sebelisoang hape. Mokhoa ona o bonolo ebile o bonolo ho o etsa.
Mokhoa oa boraro, mokhoa oa ho etsa filimi
Nka boleng bo itseng ba phofo ea latex e ka sebelisoang hape, e qhibilihe ka makhetlo a 2 ho metsi, e hlohlelletse ka mokhoa o ts'oanang, e lumelle hore e eme metsotso e 2, e tsose hape, tšela tharollo holim'a khalase e hloekileng e bataletseng, 'me u behe khalase sebakeng se nang le moea o motlakase. Tlosa ha o omme ka ho feletseng. Sheba filimi ea polymer e tlositsoeng. Ponaletso e phahameng le boleng bo botle. Ebe u hula ka mokhoa o itekanetseng, ka elasticity e ntle le boleng bo botle. Ka mor'a moo, filimi e ile ea khaoloa ka lihlopha, e qoelisoa ka metsing, 'me e hlokomeloa ka mor'a letsatsi la 1, boleng ba filimi bo ne bo sa qhibilihe ka metsing. Mokhoa ona o na le sepheo se eketsehileng
Nako ea poso: Oct-27-2022