Extruded polystyrene board (XPS) yog cov khoom siv dav siv rau lub tsev rwb thaiv tsev, thiab nws cov nplaim hluav taws kub hnyiab yog qhov tseem ceeb rau kev ruaj ntseg hauv tsev. Kev tsim qauv ntawm cov nplaim hluav taws kub hnyiab rau XPS yuav tsum muaj kev xav zoo ntawm cov nplaim hluav taws kub hnyiab, kev ua haujlwm, nqi, thiab kev xav tau ib puag ncig. Hauv qab no yog cov ncauj lus kom ntxaws tsim thiab piav qhia ntawm cov nplaim hluav taws kub retardant formulations rau XPS, npog ob qho tib si halogenated thiab halogen-dawb nplaim retardant kev daws teeb meem.
1. Cov Ntsiab Cai Tsim Qauv rau XPS Nplaim Retardant Formulations
Cov khoom tseem ceeb ntawm XPS yog polystyrene (PS), thiab nws cov nplaim hluav taws kub hloov pauv yog ua tiav los ntawm kev ntxiv cov nplaim hluav taws. Kev tsim qauv tsim yuav tsum ua raws li cov hauv qab no:
- High nplaim retardancy: Ua tau raws li cov qauv hluav taws xob hluav taws xob rau cov khoom siv hauv tsev (xws li GB 8624-2012).
- Kev ua tau zoo: Cov nplaim hluav taws yuav tsum tsis txhob cuam tshuam rau cov txheej txheem foaming thiab molding ntawm XPS.
- Environmental friendliness: Halogen-dawb nplaim retardants yuav tsum tau ua ntej kom ua raws li kev cai ib puag ncig.
- Tus nqi tswj: Txo cov nqi thaum ua tau raws li qhov yuav tsum tau ua.
2. Halogenated Flame Retardant XPS Formulation
Halogenated nplaim retardants (xws li, brominated) cuam tshuam cov combustion saw cov tshuaj tiv thaiv los ntawm kev tso tawm halogen radicals, muab cov nplaim hluav taws kub retardant efficiency tab sis ua rau ib puag ncig thiab kev noj qab haus huv txaus ntshai.
(1) Formulation Composition:
- Polystyrene (PS): 100phr (lub hauv paus resin)
- Brominated nplaim retardant: 10–20phr (piv txwv li, hexabromocyclododecane (HBCD) los yog brominated polystyrene)
- Antimony trioxide (Synergist): 3-5phr (txhim kho cov nplaim retardant)
- Foaming tus neeg sawv cev5-10phr (piv txwv li, carbon dioxide lossis butane)
- Dispersant: 1-2phr (piv txwv li, polyethylene wax, txhim kho kev tawg ntawm nplaim hluav taws)
- Lubricant: 1-2phr (piv txwv li, calcium stearate, txhim khu kev ua haujlwm fluidity)
- Antioxidant: 0.5–1 feem (piv txwv li, 1010 lossis 168, tiv thaiv degradation thaum ua)
(2) Kev Ua Haujlwm:
- Premix PS resin, nplaim retardant, synergist, dispersant, lubricant, thiab antioxidant uniformly.
- Ntxiv cov foaming tus neeg sawv cev thiab yaj-kib nyob rau hauv ib tug extruder.
- Tswj lub extrusion kub ntawm 180-220 ° C los xyuas kom meej foaming thiab molding.
(3) Cov yam ntxwv:
- Qhov zoo: High nplaim retardant efficiency, tsawg additive nqi, thiab tus nqi qis.
- Qhov tsis zoo: Tej zaum yuav tsim cov pa roj carbon monoxide (xws li hydrogen bromide) thaum combustion, ua rau muaj kev txhawj xeeb txog ib puag ncig.
3. Halogen-Free Flame Retardant XPS Formulation
Halogen-dawb nplaim retardants (xws li, phosphorus-raws li, nitrogen-based, los yog inorganic hydroxides) ua tiav cov nplaim hluav taws xob los ntawm kev nqus cua sov lossis tsim cov txheej tiv thaiv, muab kev ua haujlwm zoo ib puag ncig.
(1) Formulation Composition:
- Polystyrene (PS): 100phr (lub hauv paus resin)
- Phosphorus-based nplaim retardant: 10–15 phr (eg,ammonium polyphosphate (APP)los yog liab phosphorus)
- Nitrogen-based nplaim retardant5-10phr (piv txwv li, melamine cyanurate (MCA))
- Inorganic hydroxide20-30phr (piv txwv li, magnesium hydroxide lossis aluminium hydroxide)
- Foaming tus neeg sawv cev5-10phr (piv txwv li, carbon dioxide lossis butane)
- Dispersant: 1-2phr (piv txwv li, polyethylene wax, txhim kho dispersion)
- Lubricant: 1-2phr (piv txwv li, zinc stearate, txhim khu kev ua haujlwm fluidity)
- Antioxidant: 0.5–1 feem (piv txwv li, 1010 lossis 168, tiv thaiv degradation thaum ua)
(2) Kev Ua Haujlwm:
- Premix PS resin, nplaim retardant, dispersant, lubricant, thiab antioxidant uniformly.
- Ntxiv cov foaming tus neeg sawv cev thiab yaj-kib nyob rau hauv ib tug extruder.
- Tswj lub extrusion kub ntawm 180-210 ° C kom paub meej tias foaming thiab molding zoo.
(3) Cov yam ntxwv:
- Qhov zoo: Ib puag ncig tus phooj ywg, tsis muaj cov pa roj carbon monoxide tsim thaum lub sij hawm combustion, ua raws li kev cai ib puag ncig.
- Qhov tsis zoo: Cov nplaim hluav taws xob qis dua, cov khoom siv ntxiv ntau dua, tuaj yeem cuam tshuam rau cov khoom siv kho tshuab thiab kev ua haujlwm foaming.
4. Kev txiav txim siab tseem ceeb hauv kev tsim qauv
(1) Nplaim Retardant xaiv
- Halogenated nplaim retardants: High efficiency tab sis ua rau ib puag ncig thiab kev noj qab haus huv txaus ntshai.
- Halogen-dawb nplaim retardants: Ntau tus phooj ywg ib puag ncig tab sis xav tau ntau dua ntxiv.
(2) Siv cov Synergists
- Antimony trioxide: Ua haujlwm sib koom ua ke nrog halogenated nplaim retardants los txhim kho nplaim taws retardancy.
- Phosphorus-nitrogen synergy: Hauv cov tshuab tsis muaj halogen, phosphorus thiab nitrogen-based nplaim retardants tuaj yeem ua haujlwm ua ke los txhim kho kev ua haujlwm.
(3) Dispersion thiab Processability
- Dispersants: Xyuas kom muaj kev sib cais ntawm cov nplaim hluav taws xob kom tsis txhob muaj qhov chaw siab.
- Lubricants: Txhim kho kev ua haujlwm fluidity thiab txo cov khoom hnav.
(4) Foaming Agent Xaiv
- Lub cev foaming agents: Xws li CO₂ lossis butane, ib puag ncig tus phooj ywg nrog zoo foaming teebmeem.
- Cov tshuaj ua npuas ncauj: Xws li azodicarbonamide (AC), kev ua haujlwm siab foaming tab sis tuaj yeem tsim cov pa phem.
(5) Antioxidants
Tiv thaiv cov khoom degradation thaum ua thiab txhim kho cov khoom ruaj khov.
5. Cov ntawv thov ib txwm
- Lub tsev rwb thaiv tsev: Siv nyob rau hauv cov phab ntsa, ru tsev, thiab flooring rwb thaiv tsev txheej.
- Cold chain logistics: Rwb thaiv tsev rau cov khoom txias thiab cov tsheb tub yees.
- Lwm yam teb: Cov khoom siv kho kom zoo nkauj, cov khoom siv suab nrov, thiab lwm yam.
6. Formulation Optimization Recommendation
(1) Txhim kho nplaim hluav taws xob ua haujlwm zoo
- Blended nplaim retardants: Xws li halogen-antimony lossis phosphorus-nitrogen synergies los txhim kho cov nplaim hluav taws.
- Nano nplaim retardants: Xws li nano magnesium hydroxide los yog nano av nplaum, kev txhim kho kev ua haujlwm thaum txo cov nqi ntxiv.
(2) Txhim kho Mechanical Properties
- Toughening agents: Xws li POE lossis EPDM, txhim kho cov khoom toughness thiab cuam tshuam tsis kam.
- Txhawb nqa fillers: Xws li iav fibers, txhim khu lub zog thiab rigidity.
(3) Tus nqi txo
- Optimize nplaim retardant ratios: Txo kev siv thaum ua tau raws li qhov xav tau ntawm cov nplaim taws.
- Xaiv cov khoom siv nyiaj txiag zoo: Xws li cov khoom siv hluav taws xob hauv tsev lossis cov nplaim hluav taws xob sib xyaw.
7. Ib puag ncig thiab kev tswj hwm
- Halogenated nplaim retardants: Kev txwv los ntawm cov cai xws li RoHS thiab REACH; siv ceev faj.
- Halogen-dawb nplaim retardants: Ua raws li kev cai ib puag ncig thiab sawv cev rau yav tom ntej.
Cov ntsiab lus
Kev tsim qauv ntawm cov nplaim hluav taws kub hnyiab rau XPS yuav tsum ua raws li cov xwm txheej tshwj xeeb thiab cov kev cai tswj hwm, xaiv ntawm halogenated lossis halogen-dawb nplaim retardants. Halogenated nplaim retardants muaj kev ua haujlwm siab tab sis ua rau muaj kev txhawj xeeb ib puag ncig, thaum cov nplaim hluav taws tsis muaj halogen muaj ntau tus phooj ywg ib puag ncig tab sis xav tau ntau dua ntxiv. Los ntawm optimizing formulations thiab cov txheej txheem, kev ua tau zoo, eco-friendly, thiab nqi-zoo nplaim-retardant XPS tuaj yeem ua tau raws li qhov xav tau ntawm lub tsev rwb thaiv tsev thiab lwm yam.
More info., pls contact lucy@taifeng-fr.com
Post lub sij hawm: May-23-2025
