Extruded polystyrene board (XPS) ke thepa e sebelisoang haholo bakeng sa moaho, 'me thepa ea eona e thibelang malakabe e bohlokoa bakeng sa polokeho ea moaho. Moralo oa tlhahiso ea li-flame retardants bakeng sa XPS o hloka ho nahanoa ka botlalo mabapi le ts'ebetso e thibelang malakabe, ts'ebetso ea ts'ebetso, litšenyehelo le litlhoko tsa tikoloho. Ka tlase ho na le moralo o hlakileng le tlhaloso ea liforomo tse thibelang malakabe bakeng sa XPS, tse koahelang litharollo tse thibelang malakabe a halogenated le a se nang halogen.
1. Melao-motheo ea Moqapi bakeng sa Liforomo tsa XPS Flame Retardant
Karolo e ka sehloohong ea XPS ke polystyrene (PS), 'me phetoho ea eona e thibelang lelakabe e fumaneha haholo ka ho eketsa li-retardants tsa lelakabe. Moralo oa tlhahiso o lokela ho latela melaoana e latelang:
- Ho lieha ho hoholo ha lelakabe: Kopana le litekanyetso tse thibelang lelakabe bakeng sa thepa ea mohaho (mohlala, GB 8624-2012).
- Ts'ebetso ea ts'ebetso: Sehlahisoa sa lelakabe ha sea lokela ho ama haholo ts'ebetso ea XPS ea ho foaming le ho bopa.
- Botsoalle ba tikoloho: Li-halogen-free flame retardants li lokela ho behoa pele ho latela melao ea tikoloho.
- Taolo ea litšenyehelo: Fokotsa litšenyehelo ha u ntse u kopana le litlhoko tsa ts'ebetso.
2. Sebopeho sa XPS sa Halogenated Flame Retardant
Li-halogenated flame retardants (mohlala, brominated) li sitisa tšebetso ea ketane ea ho tuka ka ho lokolla li-halogen radicals, tse fanang ka ts'ebetso e phahameng ea ho thibela mollo empa li beha likotsi tsa tikoloho le bophelo bo botle.
(1) Sebopeho sa Sebopeho:
- Polystyrene (PS): 100phr (resin ea motheo)
- Brominated flame retardant: 10–20phr (mohlala, hexabromocyclododecane (HBCD) kapa brominated polystyrene)
- Antimony trioxide (synergist): 3–5phr (e matlafatsa phello e thibelang lelakabe)
- Motho ya phophomang: 5-10phr (mohlala, carbon dioxide kapa butane)
- Ea qhalaneng: 1-2phr (mohlala, boka ba polyethylene, e ntlafatsa ho hasana ha lelakabe le thibelang mollo)
- Setlolo: 1-2phr (mohlala, calcium stearate, e ntlafatsa ho sebetsa ha metsi)
- Antioxidant: 0.5-1 karolo (mohlala, 1010 kapa 168, e thibela ho senyeha nakong ea ts'ebetso)
(2) Mokhoa oa Ts'ebetso:
- Premix PS resin, flame retardant, synergist, dispersant, lubricant, le antioxidant ka mokhoa o ts'oanang.
- Eketsa mokelikeli oa foaming 'me u qhibilihe-ho kopanya ka extruder.
- Laola mocheso oa extrusion ho 180-220 ° C ho etsa bonnete ba ho foamisa le ho bōptjoa hantle.
(3) Litšobotsi:
- Melemo: Ts'ebetso e phahameng ea ho thibela mollo, palo e tlase ea tlatsetso, le litšenyehelo tse tlase.
- Mefokolo: E ka hlahisa likhase tse chefo (mohlala, hydrogen bromide) nakong ea mollo, e bakang mathata a tikoloho.
3. Sebopeho sa XPS sa Halogen-Free Flame Retardant
Li-halogen-free flame retardants (mohlala, phosphorus-based, nitrogen-based, kapa inorganic hydroxides) li khona ho lieha lelakabe ka ho monya mocheso kapa ho etsa likarolo tse sireletsang, tse fanang ka ts'ebetso e ntle ea tikoloho.
(1) Sebopeho sa Sebopeho:
- Polystyrene (PS): 100phr (resin ea motheo)
- Phosphorus-based flame retardant: 10-15phr (mohlala,ammonium polyphosphate (APP)kapa phosphorus e khubelu)
- Sehlahisoa sa naetrojene sa lelakabe: 5–10phr (mohlala, melamine cyanrate (MCA))
- Inorganic hydroxide20-30phr (mohlala, magnesium hydroxide kapa aluminium hydroxide)
- Motho ya phophomang: 5-10phr (mohlala, carbon dioxide kapa butane)
- Ea qhalaneng: 1-2phr (mohlala, boka ba polyethylene, e ntlafatsa ho hasana)
- Setlolo: 1-2phr (mohlala, zinc stearate, e ntlafatsa ho sebetsa ha metsi)
- Antioxidant: 0.5-1 karolo (mohlala, 1010 kapa 168, e thibela ho senyeha nakong ea ts'ebetso)
(2) Mokhoa oa Ts'ebetso:
- Premix PS resin, retardant ea mollo, dispersant, lubricant, le antioxidant ka mokhoa o ts'oanang.
- Eketsa mokelikeli oa foaming 'me u qhibilihe-ho kopanya ka extruder.
- Laola mocheso oa extrusion ho 180-210 ° C ho etsa bonnete ba ho foamisa le ho bopeha ho nepahetseng.
(3) Litšobotsi:
- Melemo: E na le tikoloho, ha ho na likhase tse chefo tse hlahisoang nakong ea mollo, tse lumellanang le melao ea tikoloho.
- Mefokolo: Ts'ebetso e tlase ea ho khutlisa lelakabe, litekanyo tse phahameng tsa tlatsetso, li ka ama thepa ea mochini le ts'ebetso ea ho phophoma.
4. Lintlha tsa Bohlokoa ho Moralo oa Tlhahiso
(1) Khetho e Lekang Lelakabe
- Li-halogenated flame retardants: Ho sebetsa hantle haholo empa ho beha likotsi tsa tikoloho le bophelo bo botle.
- Li-flame retardants tse se nang Halogen: E baballa tikoloho haholoanyane empa e hloka likhakanyo tse phahameng.
(2) Tšebeliso ea Li-Synergists
- Antimony trioxide: E sebetsa ka mokhoa o ts'oanang le li-halogenated flame retardants ho ntlafatsa haholo ho lieha ha lelakabe.
- Synergy ea phosphorus-nitrogen: Litsamaisong tse se nang halogen, li-flame retardants tse thehiloeng ho naetrojene li ka sebetsa hammoho ho ntlafatsa ts'ebetso.
(3) Phatlalatso le Ts'ebetso
- Li-disperants: Etsa bonnete ba ho hasana ka mokhoa o ts'oanang oa li-retardants tsa malakabe ho qoba libaka tse phahameng tsa libaka.
- Lisebelisoa: Ntlafatsa ho sebetsa ha metsi le ho fokotsa ho roala ha lisebelisoa.
(4) Khetho ea Moemeli ea Foaming
- Liemeli tse tsoang ka 'mele: Joalo ka CO₂ kapa butane, e na le tikoloho e nang le litlamorao tse ntle tsa ho foam.
- Lik'hemik'hale tse phophomang mafu: Joalo ka azodicarbonamide (AC), ts'ebetso e phahameng ea ho foaming empa e ka hlahisa likhase tse kotsi.
(5) Li-antioxidants
Thibela ho senyeha ha thepa nakong ea ho sebetsa le ho matlafatsa botsitso ba sehlahisoa.
5. Likopo tse Tloaelehileng
- Mohaho oa insulation: E sebelisoa maboteng, marulelong, le maboteng a ho sireletsa fatše.
- Cold chain logistics: Insulation bakeng sa polokelo e batang le likoloi tse nang le sehatsetsing.
- Libaka tse ling: Lisebelisoa tse khabisitsoeng, lisebelisoa tse thibelang molumo, joalo-joalo.
6. Litlhahiso tsa ho ntlafatsa ho theha
(1) Ho Ntlafatsa Tšebeliso e Ntle ea Flame Retardant
- Li-retardants tse kopantsoeng tsa mollo: Tse kang halogen-antimony kapa phosphorus-nitrogen synergies ho matlafatsa ho lieha ha lelakabe.
- Nano flame retardants: Joalo ka nano magnesium hydroxide kapa letsopa la nano, e ntlafatsa ts'ebetso ha e ntse e fokotsa palo ea tlatsetso.
(2) Ntlafatso ea Thepa ea Mechini
- Mahlahana a toughening: Tse kang POE kapa EPDM, ho ntlafatsa ho tiea ha thepa le ho hanyetsa tšusumetso.
- Ho matlafatsa li-fillers: Tse kang likhoele tsa khalase, tse matlafatsang matla le ho tiea.
(3) Phokotso ea Litšenyehelo
- Ntlafatsa likhakanyo tse thibelang malakabe: Fokotsa tšebeliso ha u ntse u kopana le litlhoko tse thibelang malakabe.
- Khetha thepa e bolokang chelete e ngata: Tse kang tse sebelisoang malapeng kapa tse tsoakiloeng ka malakabe.
7. Litlhoko tsa Tikoloho le Taolo
- Li-halogenated flame retardants: E thibetsoe ke melaoana e kang RoHS le REACH; sebelisa ka hloko.
- Li-flame retardants tse se nang Halogen: Ikamahanye le melao ea tikoloho le ho emela mekhoa ea nako e tlang.
Kakaretso
Moralo oa tlhahiso ea li-flame retardants bakeng sa XPS o lokela ho ipapisa le maemo a ikhethileng a ts'ebeliso le litlhokahalo tsa taolo, ho khetha lipakeng tsa li-halogenated kapa tse se nang halogen flame retardants. Li-halogenated flame retardants li fana ka ts'ebetso e phahameng empa li baka mathata a tikoloho, athe li-halogen-free fire retardants li na le botsoalle ho tikoloho empa li hloka likhakanyo tse phahameng. Ka ho ntlafatsa litlhophiso le lits'ebetso, XPS ea ts'ebetso e phahameng, e bonolo ho tikoloho, le e bolokang chelete e thibelang malakabe e thibelang malakabe e ka hlahisoa ho fihlela litlhoko tsa moaho le likarolo tse ling.
More info., pls contact lucy@taifeng-fr.com
Nako ea poso: May-23-2025
