Melamine Cynurate(MCA) ke ntho e tloaelehileng e sebelisoang ho thibela lelakabe le tikoloho, e sebelisoang haholo linthong tsa polymer tse kang polyamide (Nylon, PA-6/PA-66), epoxy resin, polyurethane, polystyrene, polyester (PET, PBT), polyolefin le halogen- terata le thapo e sa lefelloeng. Thepa ea eona e babatsehang ea ho thibela lelakabe, chefo e tlaase le botsitso bo botle ba mocheso li entse hore e amehe haholo 'me e sebelisoe masimong a lisebelisoa tsa elektronike, likoloi le kaho.
Melamine Cyanurate ke motsoako o hlahisoang ke karabelo ea Melamine le cyanuric acid. Sebopeho sa lesela la molek'hule se entsoeng ka hydrogen bonding se na le likarolo tse ngata tsa naetrojene. Sena se lumella Melamine Cyanurate ho lokolla palo e itseng ea nitrogen mocheso o phahameng, kahoo e thibela ho ata ha malakabe. Sebopeho sa eona sa lik'hemik'hale se etsa qeto ea hore se na le botsitso bo botle ba mocheso, matla a mochine le phello e babatsehang ea ho thibela mollo.
Ntle le moo, MCA ha e na likarolo tse kotsi tsa halogen, ka hona e 'nile ea sebelisoa haholo ka makhetlo a mangata ka litlhoko tse phahameng tsa tikoloho le bophelo bo botle, haholo-holo lisebelisoa tsa ntlo, thepa ea mohaho le masela.
Melamine Cynurate(MCA) ke ntho e tloaelehileng e sebelisoang ho thibela lelakabe le tikoloho, e sebelisoang haholo linthong tsa polymer tse kang polyamide (Nylon, PA-6/PA-66), epoxy resin, polyurethane, polystyrene, polyester (PET, PBT), polyolefin le halogen- terata le thapo e sa lefelloeng. Thepa ea eona e babatsehang ea ho thibela lelakabe, chefo e tlaase le botsitso bo botle ba mocheso li entse hore e amehe haholo 'me e sebelisoe masimong a lisebelisoa tsa elektronike, likoloi le kaho.
Melamine Cyanurate ke motsoako o hlahisoang ke karabelo ea Melamine le cyanuric acid. Sebopeho sa lesela la molek'hule se entsoeng ka hydrogen bonding se na le likarolo tse ngata tsa naetrojene. Sena se lumella Melamine Cyanurate ho lokolla palo e itseng ea nitrogen mocheso o phahameng, kahoo e thibela ho ata ha malakabe. Sebopeho sa eona sa lik'hemik'hale se etsa qeto ea hore se na le botsitso bo botle ba mocheso, matla a mochine le phello e babatsehang ea ho thibela mollo.
Ntle le moo, MCA ha e na likarolo tse kotsi tsa halogen, ka hona e 'nile ea sebelisoa haholo ka makhetlo a mangata ka litlhoko tse phahameng tsa tikoloho le bophelo bo botle, haholo-holo lisebelisoa tsa ntlo, thepa ea mohaho le masela.
Mochine o thibelang mollo oa Melamine Cyanurate
Mochine o thibelang malakabe oa Melamine Cyanurate o bonahala haholo-holo litšobotsing tsa eona tsa ho bola ha mocheso o phahameng le phello e thibelang ea lera la carbon le entsoeng ka ho ata ha lelakabe. Haholo-holo, phello e thibelang lelakabe la MCA e ka hlahlojoa ho tsoa likarolong tse latelang:
(1) Ho lokolloa ha naetrojene ho thibela phepelo ea oksijene
Limolek'hule tsa MCA li na le likarolo tse ngata tsa naetrojene. Nakong ea ho futhumatsa, likarolo tsa naetrojene li tla lokolloa ho etsa khase (haholo-holo khase ea nitrogen). Khase ea naetrojene ka boeona ha e tšehetse ho tuka, kahoo e ka hlapolla ka mokhoa o atlehileng moea oa oksijene ho potoloha mohloli oa mollo, ea fokotsa mocheso oa lelakabe, kahoo ea fokotsa lebelo la ho tuka le ho thibela ho ata ha mollo. Ts'ebetso ena e bohlokoa ho ntlafatsa thepa e thibelang malakabe, haholo-holo tlas'a maemo a phahameng a mocheso.
(2) Khothalletsa ho thehoa ha lera la carbonized
Nakong ea ts'ebetso ea pyrolysis, MCA e tla senya le ho hlahisa lesela la carbonized nakong ea ho senyeha ha mocheso. Lera lena la inert carbonized le na le thepa e babatsehang ea ho kenya mocheso oa mocheso 'me le ka etsa mokoallo pakeng tsa sebaka se tukang le sebaka se sa chesoeng, se thibelang ho fetisa mocheso le ho fokotsa ho ata ha lelakabe.
Ho phaella moo, lera la carbonized le ka boela la arola oksijene moeeng, le etsa lera le sireletsang 'mele, le fokotsa ho kopana ha oksijene ka lintho tse tukang, ka tsela eo ho thibela ho tuka. Sebopeho le botsitso ba lera lena la carbonized ke senotlolo sa hore na MCA e ka phetha karolo ea bohlokoa e le ho thibela mollo.
(3) Tšebeliso ea lik'hemik'hale e hlahisa mouoane oa metsi
Tlas'a tikoloho ea mocheso o phahameng, MCA e tla ba le maikutlo a ho bola 'me e lokolle mouoane o itseng oa metsi. Mouoane oa metsi o ka fokotsa mocheso oa sebaka ka katleho 'me oa tlosa mocheso ka ho fetoha mouoane, kahoo o pholisa mohloli oa mollo. Ho phaella moo, ho thehoa ha mouoane oa metsi ho ka boela ha fokotsa bongata ba oksijene ho potoloha mohloli oa mollo, ho thibela ho ata ha malakabe.
(4) Tšusumetso ea Synergistic le li-additives tse ling
Ntle le phello ea eona e thibelang malakabe, Melamine Cyanurate e ka boela ea hokahana le li-retardants tse ling tsa malakabe kapa li-filler ho ntlafatsa thepa e thibelang lelakabe ka kakaretso ea thepa. Ka mohlala, MCA e atisa ho sebelisoa hammoho le li-flame retardants tsa phosphorus, li-inorganic fillers, joalo-joalo, tse ka ntlafatsang botsitso ba mocheso le thepa ea mochine oa thepa le ho ba le phello e matla ea ho thibela mollo.
Melemo le Litšebeliso tsa Melamine Cyanurate
(1) Ho se be le tikoloho le ho se chefo
Ha ho bapisoa le li-halogen flame retardants tse tloaelehileng, MCA ha e lokolle likhase tse kotsi tsa halogen (tse kang hydrogen chloride, hydrogen bromide, joalo-joalo) nakong ea ts'ebetso ea ho thibela mollo, ho fokotsa tšilafalo ho tikoloho le kotsi e ka bang teng bophelong ba batho. Ts'ebetso ea ho ntša naetrojene ea MCA e batla e bolokehile, ka hona, e baballa tikoloho nakong ea ts'ebeliso mme e na le tšusumetso e fokolang tikolohong ea tikoloho.
(2) Botsitso bo botle ba mocheso le ho hanyetsa boemo ba leholimo
MCA e na le botsitso bo phahameng ba mocheso, e ka boloka lik'hemik'hale tse tsitsitseng ka mocheso o phahameng, 'me ka katleho e thibela ho tuka ho bakoang ke mocheso o phahameng. Libakeng tse ling tse sebetsang ka mocheso o phahameng, MCA e ka fana ka tšireletso e tšoarellang nako e telele e le lelakabe le thibelang mollo.
Ntle le moo, MCA e boetse e na le khanyetso e matla ea leholimo, e ka boloka ts'ebetso e ntle ts'ebelisong ea nako e telele, le ho ikamahanya le maemo a leholimo a fapaneng.
(3) Mosi o tlaase
MCA e hlahisa mosi o monyenyane ha e futhumala ho ea ho mocheso o phahameng. Ha ho bapisoa le li-halogen flame retardants, e ka fokotsa haholo ho ntšoa ha likhase tse chefo mollong le ho fokotsa kotsi ea mosi ho basebetsi.
E le botsoalle tikoloho le bao e seng chefoe thibelang lelakabe, Melamine Cyanrate e na le mokhoa o ikhethang oa ho thibela lelakabe o bontšang menyetla e mengata ea tšebeliso ea lisebelisoa tsa morao-rao. Ka ntlafatso e tsoelang pele ea litlhoko tsa ts'ireletso ea tikoloho le polokeho, Melamine Cyanurate e tla sebelisoa masimong a mangata 'me e be e' ngoe ea likarolo tsa mantlha tsa thepa e thibelang malakabe.
Bakeng sa tlhaiso-leseling e batsi mabapi le mokhoa oa ho khetha MCA e u loketseng, ka kopo sheba sengoloa sa ka "U ka Khetha Melamine Cyanurate ea boleng bo botle joang?"Ke tšepa hore e tla u thusa.
Nako ea poso: Dec-03-2024