Epoxy e tloaelehile ho bohle.Mofuta ona oa lintho tse phelang o boetse o bitsoa resin ea maiketsetso, resin glue, joalo-joalo Ke mofuta oa bohlokoa haholo oa polasetiki ea thermosetting.Ka lebaka la palo e kholo ea lihlopha tse sebetsang le tse polar, limolek'hule tsa epoxy resin li ka kopanngoa le ho phekoloa ka mefuta e fapaneng ea li-agent, 'me thepa e fapaneng e ka thehoa ka ho eketsa lisebelisoa tse sa tšoaneng.

Joaloka resin ea thermosetting, resin ea epoxy e na le melemo ea thepa e ntle ea 'mele, ho kenya motlakase, ho khomarela hantle, ho hanyetsa alkali, ho hanyetsa abrasion, manufacturability e babatsehang, botsitso le theko e tlaase.Ke e 'ngoe ea li-resin tse pharaletseng tse sebelisoang ka thepa ea polymer

Hona joale, epoxy resin e sebelisoa haholo indastering ea ho roala, 'me seaparo se entsoeng ka sona e le karoloana e bitsoa epoxy resin coating.Ho tlalehoa hore ho roala ha epoxy resin ke lisebelisoa tse teteaneng tse sireletsang tse ka sebelisoang ho koahela ntho leha e le efe, ho tloha fatše, lisebelisoa tse kholo tsa motlakase ho lihlahisoa tse nyenyane tsa elektronike, ho li sireletsa ho senya kapa ho apara.Ntle le ho tšoarella haholo, liphahlo tsa epoxy resin hangata li hanana le lintho tse kang mafome le ho bola ha lik'hemik'hale, ka hona li tumme liindasteri le ts'ebeliso e fapaneng.

Sephiri sa ho tšoarella ha seaparo sa epoxy

Kaha epoxy resin ke ea sehlopha sa polymer ea metsi, e hloka thuso ea lisebelisoa tse phekolang, li-additives le li-pigments hore e be 'mele oa epoxy e thibelang ho bola.Har'a tsona, li-nano oxide li atisa ho eketsoa e le li-pigments le li-filler ho li-coating tsa epoxy resin, 'me baemeli ba tloaelehileng ke silica(SiO2), titanium dioxide(TiO2), aluminium oxide(Al2O3), zinc oxide(ZnO), le li-oxide tsa lefatše tse sa tloaelehang.Ka boholo le sebopeho sa tsona se ikhethileng, li-nano oxides li bonts'a lisebelisoa tse ngata tse ikhethang tsa 'mele le tsa lik'hemik'hale, tse ka ntlafatsang haholo thepa ea mochini le e thibelang kutu ea ho roala.

Ho na le mekhoa e 'meli ea mantlha ea likaroloana tsa oxides nano ho ntlafatsa ts'ebetso ea ts'ireletso ea liphahlo tsa epoxy:

Ntlha ea pele, ka boholo ba eona bo fokolang, e ka tlatsa ka katleho li-micro-cracks le li-pores tse entsoeng ke ho fokotseha ha sebaka sa heno nakong ea phekolo ea epoxy resin, ho fokotsa tsela ea ho hasana ha mecha ea phatlalatso e senyang, le ho ntlafatsa ts'ebetso ea tšireletso le tšireletso ea ho roala;

Ea bobeli ke ho sebelisa boima bo phahameng ba likaroloana tsa oxide ho eketsa boima ba epoxy resin, ka hona ho matlafatsa thepa ea mochine oa ho roala.

Ho phaella moo, ho eketsa palo e loketseng ea likaroloana tsa nano oxide ho ka boela ha eketsa matla a ho kopanya li-interface tsa epoxy coating le ho lelefatsa bophelo ba tšebeletso ea ho roala.

Karolo eanano silikaphofo:

Har'a li-oxide tsena nanopowder, nano silicon dioxide (SiO2) ke mofuta oa boteng bo phahameng.Silica nano ke inorganic non-metallic material e ntle haholo ea ho hanyetsa mocheso le ho hanyetsa oxidation.Boemo ba eona ba limolek'hule ke sebopeho sa marang-rang sa mahlakore a mararo se nang le [SiO4] tetrahedron e le setsi sa motheo sa sebopeho.Har'a tsona, liathomo tsa oksijene le silicon li kopantsoe ka ho toba ke litlamo tsa covalent, 'me sebopeho se matla, kahoo se na le lisebelisoa tse tsitsitseng tsa lik'hemik'hale, mocheso o babatsehang le ho hanyetsa boemo ba leholimo, joalo-joalo.

Nano SiO2 haholo-holo e bapala karolo ea anti-corrosion filler ho epoxy coating.Ka lehlakoreng le leng, silicon dioxide e ka tlatsa ka katleho li-micro-cracks le li-pores tse hlahisoang ts'ebetsong ea ho folisa ea epoxy resin, le ho ntlafatsa ho hanyetsa ho kenella ha seaparo;ka lehlakoreng le leng, lihlopha tse sebetsang tsa nano-SiO2 le epoxy resin li ka etsa lintlha tsa 'mele / lik'hemik'hale tse kopanyang ka mokhoa oa adsorption kapa karabelo,' me li kenyelletsa likamano tsa Si-O-Si le Si-O-C ka har'a ketane ea molek'hule ho theha. sebopeho sa marang-rang a mararo ho ntlafatsa ho khomarela ho roala.Ho phaella moo, boima bo phahameng ba nano-SiO2 bo ka ntlafatsa haholo ho hanyetsa ha seaparo, kahoo ho lelefatsa bophelo ba tšebeletso ea ho roala.