Putty ke thepa ea motheo e sebelisoang haholo mererong ea mokhabiso oa moaho, 'me boleng ba eona bo ama ka kotloloho bophelo ba ts'ebeletso le phello ea mokhabiso oa ho roala marako. Matla a ho kopanya le ho hanyetsa metsi ke matšoao a bohlokoa a ho lekola ts'ebetso ea putty.Phofo ea latex e ka qhaloang hape, joalo ka thepa e fetotsoeng ea polymer, e bapala karolo ea bohlokoa ho ntlafatseng ts'ebetso ea putty.
1. Mokhoa oa ts'ebetso ea phofo ea latex e ka sebelisoang hape
Redispersible latex powder ke phofo e entsoeng ka ho omisoa ha polymer emulsion. E ka boela ea emulsify ho theha mokhoa o tsitsitseng oa ho hasana ha polymer ka mor'a ho kopana le metsi, e leng se phethang karolo ea ho matlafatsa matla a ho kopanya le ho feto-fetoha ha putty. Mesebetsi ea eona ea mantlha e kenyelletsa:
Ho ntlafatsa matla a tlamahano: Redispersible latex powder e etsa filimi ea polymer nakong ea ts'ebetso ea ho omisa ea putty, 'me e hokahana le lisebelisoa tsa gelling tsa inorganic ho ntlafatsa bokhoni ba ho kopanya sefahleho.
Ho ntlafatsa ho hanyetsa metsi: Latex phofo e etsa marang-rang a hydrophobic ka har'a sebopeho sa putty, ho fokotsa ho kenella ha metsi le ho ntlafatsa ho thibela metsi.
Ho ntlafatsa ho feto-fetoha ha maemo: E ka fokotsa ho brittleness ea putty, ea ntlafatsa bokhoni ba deformation, le ho fokotsa kotsi ea mapetsong.
2. Thuto ea liteko
Lisebelisoa tsa teko
Lisebelisoa tsa motheo: putty e thehiloeng samenteng
phofo ea latex e ka sebelisoang hape: ethylene-vinyl acetate (EVA) copolymer latex phofo
Li-additives tse ling: thickener, moemeli oa ho boloka metsi, filler, joalo-joalo.
Mokhoa oa teko
Li-putty tse nang le litekanyo tse fapaneng tsa phofo tsa latex tse ka sebelisoang hape (0%, 2%, 5%, 8%, 10%) li ile tsa lokisoa ka ho latellana, 'me matla a bona a tlamahano le ho hanyetsa metsi li ile tsa lekoa. Matla a tlamahano a ne a khethoa ke teko ea ho hula, 'me teko ea ho thibela metsi e ile ea hlahlojoa ka tekanyo ea ho boloka matla ka mor'a ho qoelisoa metsing ka lihora tse 24.
3. Liphetho le lipuisano
Phello ea phofo ea latex e qhalakantsoeng ho matla a tlamahano
Liphetho tsa liteko li bonts'a hore ka keketseho ea litekanyetso tsa RDP, matla a tlamahano a putty a bonts'a mokhoa oa ho eketseha pele ebe o tsitsisa.
Ha tekanyo ea RDP e eketseha ho tloha ho 0% ho ea ho 5%, matla a ho kopanya a putty a ntlafatsoa haholo, hobane filimi ea polymer e entsoeng ke RDP e matlafatsa matla a ho kopanya pakeng tsa thepa ea motheo le putty.
Tsoela pele ho eketsa RDP ho feta 8%, kholo ea matla a bonding e atisa ho ba sephara, esita le ho fokotseha hanyenyane ho 10%, e ka 'nang ea e-ba hobane RDP e feteletseng e tla ama sebopeho se thata sa putty le ho fokotsa matla a sebopeho.
Phello ea phofshoana ea latex e ka sebelisoang hape ho thibela metsi
Liphetho tsa liteko tsa ho hanyetsa metsi li bontša hore palo ea RDP e na le phello e kholo ho thibela metsi a putty.
Matla a tlamahano a putty ntle le RDP a fokotsehile haholo ka mor'a ho inela ka metsing, a bonts'a ho hanyetsa metsi a fokolang.
Ho eketsoa ha palo e loketseng ea RDP (5% -8%) ho etsa hore putty e be sebopeho se teteaneng sa organic-inorganic composite, e ntlafatsa ho hanyetsa metsi, 'me e ntlafatsa haholo sekhahla sa ho boloka matla kamora lihora tse 24 tsa ho qoelisoa.
Leha ho le joalo, ha litaba tsa RDP li feta 8%, ntlafatso ea ho hanyetsa metsi ea fokotseha, e ka 'nang ea e-ba hobane likarolo tse ngata tsa tlhaho li fokotsa matla a anti-hydrolysis a putty.
Liqeto tse latelang li ka etsoa lipatlisisong tsa liteko:
Palo e loketseng eaphofshoana ea morao-rao ea latex(5% -8%) e ka ntlafatsa haholo matla a tlamahano le ho hanyetsa metsi a putty.
Tšebeliso e feteletseng ea RDP (> 8%) e ka ama sebopeho se thata sa putty, sa fella ka ho fokotseha kapa ho fokotseha ha ntlafatso ea matla a tlamahano le ho hanyetsa metsi.
Tekanyo e nepahetseng e hloka ho ntlafatsoa ho latela maemo a ts'ebeliso ea putty ho fihlela tekano e ntle lipakeng tsa ts'ebetso le litšenyehelo.
Nako ea poso: Mar-26-2025