Ntle le lihlahisoa tse seng kae tsa rabara tsa maiketsetso, lihlahisoa tse ngata tsa rabara tsa maiketsetso, tse kang rabara ea tlhaho, ke lisebelisoa tse tukang kapa tse tukang. Hona joale, mekhoa e ka sehloohong e sebelisetsoang ho ntlafatsa ho thibela lelakabe ke ho eketsa li-retardants tsa lelakabe kapa li-fillers tse thibelang lelakabe, le ho kopanya le ho fetola ka thepa e thibelang lelakabe. Ho na le mefuta e 'maloa ea theknoloji ea retardant bakeng sa rabara:
1. Rabara ea Hydrocarbon
Rabara ea Hydrocarbon e kenyelletsa NR, SBR, BR, joalo-joalo. Rabara ea Hydrocarbon hangata e na le ho hanyetsa mocheso o fokolang le ho lieha ha lelakabe, 'me boholo ba lihlahisoa tse senyehang nakong ea ho tuka ke likhase tse tukang. Ho eketsa li-retardants tsa malakabe ke mokhoa oa bohlokoa oa ho ntlafatsa ho lieha ha lelakabe la rabara ea hydrocarbon, 'me phello ea synergistic ea li-flame retardants e sebelisoa ho ntlafatsa le ho feta phello ea ho thibela lelakabe. Leha ho le joalo, tlhokomelo e lokela ho lefshoa ho phello e mpe ea palo ea lelakabe la lelakabe ho thepa ea mechine ea rabara.
Kenya li-filler tsa inorganic retardant tse kang calcium carbonate, letsopa, phofo ea talcum, carbon black black, Aluminium hydroxide, joalo-joalo ho fokotsa karolo ea lintho tse ka chang. Calcium carbonate le nitrogen alumina li na le phello ea endothermic ha li bolile. Mokhoa ona o tla fokotsa thepa e itseng ea 'mele le ea mechine ea thepa ea rabara,' me chelete ea ho tlatsa ha ea lokela ho ba khōlō haholo.
Ntle le moo, ho eketsa sekhahla sa li-crosslinking tsa rabara ho ka eketsa index ea eona ea oksijene. Ka hona, e ka ntlafatsa ho lieha ha lelakabe la rabara. Sena se ka 'na sa bakoa ke ho eketseha ha mocheso oa ho senyeha ha mocheso oa thepa ea rabara. Mokhoa ona o sebelisitsoe ka rabara ea Ethylene propylene
2. Rabara e nang le halogenated
Rabara e nang le halogenated e na le likarolo tsa halogen, e nang le index ea oksijene ka kakaretso pakeng tsa 28 le 45, 'me index ea oksijene ea FPM e bile e feta 65. Halogen e phahame ka har'a rabara ea halogenated, e phahamisa index ea eona ea oksijene. Rabara ea mofuta ona ka boeona e na le ho lieha ho hoholo ha lelakabe le ho itima ha eona ha e tuka. Ka hona, phekolo ea eona e thibelang mollo e bonolo ho feta rabara ea hydrocarbon. Ho tsoela pele ho ntlafatsa ho lieha ha lelakabe la rabara ea halogenated, mokhoa oa ho eketsa li-flame retardants hangata o amoheloa.
3. Heterochain rabara
Mofuta oa rabara o emelang ka ho fetisisa sehlopheng sena ke rabara ea dimethyl silicone, e nang le index ea oksijene e ka bang 25. Mekhoa ea sebele e thibelang lelakabe e sebelisoang ke ho eketsa mocheso oa eona oa ho bola, ho eketsa masala nakong ea ho senyeha ha mocheso, le ho fokotsa sekhahla sa tlhahiso ea mocheso. likhase tse tukang.
Nako ea poso: Jul-27-2023
