Li-Flame Retardants: Li-additives tsa bobeli tse kholo ka ho fetisisa tsa Rubber le Plastiki
E thibelang lelakabeke sesebelisoa se thusang se sebelisetsoang ho thibela thepa hore e se ke ea hotetsoa le ho thibela ho ata ha mollo.E sebelisoa haholo-holo linthong tsa polymer.Ka tšebeliso e pharaletseng ea lisebelisoa tsa maiketsetso le ntlafatso ea butle-butle ea litekanyetso tsa ts'ireletso ea mollo, li-retardants tsa lelakabe li sebelisoa haholo ka polasetiki, rabara, liphahlo, joalo-joalo Ho ea ka likarolo tse ka sehloohong tsa lik'hemik'hale tse sebetsang ho FR, li ka aroloa ka mekhahlelo e meraro: lelakabe la inorganic. li-retardants, li-organic halogenated flame retardants le li-organic phosphorus flame retardants.
Li-inorganic flame retardantse sebetsa 'meleng, e nang le ts'ebetso e tlase le keketso e kholo.E na le tšusumetso e itseng ts'ebetsong ea lisebelisoa.Leha ho le joalo, ka lebaka la theko e tlaase e ka sebelisoa lihlahisoa tse tlaase tse nang le litlhoko tse fokolang tsa ts'ebetso, tse kang polasetiki PE, PVC, joalo-joalo Nka aluminium hydroxide (ATH) e le mohlala.E tla lahleheloa ke metsi le ho senyeha ka mor'a ho futhumala. ho fihlela ho 200 ℃.Ts'ebetso ea ho bola e monya mocheso le mouoane oa metsi, e le ho thibela ho phahama ha mocheso oa thepa, ho fokotsa mocheso oa thepa, ho liehisa lebelo la ho phatloha ha mocheso.Ka nako e ts'oanang, mouoane oa metsi o ka fokotsa khatello ea oksijene 'me oa thibela ho chesa.Alumina e hlahisoang ke ho bola e khomaretsoe holim'a lintho tse bonahalang, tse ka thibelang ho ata ha mollo ka ho eketsehileng.
Organic halogen flame retardantshaholo-holo amohela tsela ea lik'hemik'hale.Bokhoni ba eona bo holimo 'me tlatsetso e tšoana hantle le li-polymers.Li sebelisoa haholo ho li-castings tsa elektroniki, liboto tsa potoloho tse hatisitsoeng le likarolo tse ling tsa motlakase.Leha ho le joalo, li tla ntša likhase tse chefo le tse senyang, tse nang le mathata a itseng a tšireletso le tšireletso ea tikoloho.Brominated flame retardants (BFRs)haholo-holo ke mofuta oa halogenated flame retardants.E 'ngoe ke eonachloro-series fire retardants(CFRs).Mocheso oa bona oa ho bola o tšoana le oa thepa ea polymer.Ha li-polymer li futhumatsoa ebile li senyeha, li-BFR le tsona li qala ho bola, li kena sebakeng sa mollo oa khase hammoho le lihlahisoa tsa ho bola ha mocheso, li thibela ho itšoara le ho thibela ho ata ha lelakabe.Ka nako e ts'oanang, khase e lokolotsoeng e koahela bokaholimo ba lisebelisoa ho thibela le ho hlapolla mohopolo oa oksijene, 'me qetellong o liehe ho potlaka ha mollo ho fihlela o felisoa.Ho feta moo, hangata li-BFR li sebelisoa hammoho le antimony oxide(ATO).ATO ka boeona ha e na ho lieha ha lelakabe, empa e ka sebetsa e le sesosa sa ho potlakisa ho bola ha bromine kapa chlorine.
Li-organic phosphorus flame retardants (OFRs)e sebetsa ka bobeli 'meleng le lik'hemik'hale, ka katleho e phahameng le melemo ea chefo e tlaase, e tšoarellang le ts'ebetso e phahameng ea litšenyehelo.Ho phaella moo, e ka boela ea ntlafatsa ho sebetsa ha metsi a alloy, ho fana ka mosebetsi oa polasetiki le ts'ebetso e babatsehang.Ka litlhoko tse phahameng tsa tšireletso ea tikoloho, li-OPFR li ntse li nka sebaka sa BFR butle-butle e le lihlahisoa tse tloaelehileng.
Le hoja ho eketsoa ha FR ho ke ke ha etsa hore thepa e hanyetse mollo ka ho feletseng, e ka qoba ka katleho ketsahalo ea "flash burn", ho fokotsa ketsahalo ea mollo le ho hapa nako ea bohlokoa ea ho phonyoha bakeng sa batho ba sebakeng sa mollo.Ho matlafatsoa ha litlhoko tsa naha bakeng sa theknoloji e thibelang malakabe ho boetse ho etsa hore tebello ea tsoelo-pele ea FR e be e pharaletseng haholoanyane.
Nako ea poso: Nov-19-2021