Cov ntawv polystyrene extruded (XPS) yog cov khoom siv dav dav rau kev rwb thaiv tsev, thiab nws cov khoom tiv thaiv hluav taws kub yog qhov tseem ceeb rau kev nyab xeeb ntawm lub tsev. Kev tsim cov qauv ntawm cov tshuaj tiv thaiv hluav taws kub rau XPS yuav tsum tau xav txog kev ua haujlwm ntawm cov tshuaj tiv thaiv hluav taws kub, kev ua haujlwm, tus nqi, thiab cov kev xav tau ib puag ncig. Hauv qab no yog kev tsim qauv thiab kev piav qhia ntxaws ntawm cov qauv tiv thaiv hluav taws kub rau XPS, uas suav nrog ob qho tib si halogenated thiab halogen-free flame retardant daws teeb meem.
1. Cov Ntsiab Cai Tsim Qauv rau XPS Cov Tshuaj Tiv Thaiv Hluav Taws
Lub ntsiab lus tseem ceeb ntawm XPS yog polystyrene (PS), thiab nws qhov kev hloov pauv hluav taws kub feem ntau yog ua tiav los ntawm kev ntxiv cov tshuaj hluav taws kub. Tus qauv tsim yuav tsum ua raws li cov hauv paus ntsiab lus hauv qab no:
- Muaj hluav taws kub heevUa tau raws li cov qauv tiv thaiv hluav taws rau cov ntaub ntawv tsim kho (piv txwv li, GB 8624-2012).
- Kev ua haujlwm tau zooCov tshuaj tua hluav taws yuav tsum tsis txhob cuam tshuam rau cov txheej txheem ua npuas dej thiab pwm ntawm XPS.
- Kev phooj ywg ib puag ncig: Cov tshuaj tiv thaiv hluav taws uas tsis muaj halogen yuav tsum tau muab tso ua ntej kom ua raws li cov cai ib puag ncig.
- Kev tswj tus nqiTxo cov nqi thaum ua tau raws li qhov yuav tsum tau ua.
2. Cov Qauv XPS Uas Muaj Hluav Taws Xob Halogenated
Cov tshuaj halogenated flame retardants (piv txwv li, brominated) cuam tshuam cov txheej txheem combustion chain reaction los ntawm kev tso tawm cov halogen radicals, muab cov txiaj ntsig zoo ntawm kev tiv thaiv hluav taws tab sis ua rau muaj kev pheej hmoo rau ib puag ncig thiab kev noj qab haus huv.
(1) Cov Qauv Sib xyaw:
- Polystyrene (PS): 100phr (resin puag)
- Brominated nplaim taws retardant: 10–20phr (piv txwv li, hexabromocyclododecane (HBCD) lossis brominated polystyrene)
- Antimony trioxide (synergist): 3–5phr (ua kom cov nplaim taws tsis kub hnyiab)
- Tus neeg sawv cev ua npuas ncauj5–10phr (piv txwv li, carbon dioxide lossis butane)
- Cov tshuaj dispersant1–2phr (piv txwv li, polyethylene wax, txhim kho kev sib kis ntawm cov nplaim taws retardant)
- Cov roj nplua nyeem1–2phr (piv txwv li, calcium stearate, ua kom cov txheej txheem ua haujlwm zoo dua)
- Tshuaj tua kab mob: 0.5–1 feem (piv txwv li, 1010 lossis 168, tiv thaiv kev puas tsuaj thaum lub sijhawm ua tiav)
(2) Txoj Kev Ua Haujlwm:
- Premix PS resin, hluav taws kub retardant, synergist, dispersant, roj nplua nyeem, thiab antioxidant sib npaug.
- Ntxiv cov neeg sawv cev ua npuas ncauj thiab yaj-sib tov rau hauv lub extruder.
- Tswj qhov kub ntawm extrusion ntawm 180–220 ° C kom ntseeg tau tias muaj kev ua npuas dej thiab molding zoo.
(3) Cov yam ntxwv:
- Cov txiaj ntsig: Ua haujlwm tau zoo heev thaum hluav taws kub, muaj cov khoom ntxiv tsawg, thiab tus nqi qis dua.
- Qhov tsis zooTej zaum yuav tsim cov pa roj lom (piv txwv li, hydrogen bromide) thaum lub sijhawm hlawv, ua rau muaj kev txhawj xeeb txog ib puag ncig.
3. Cov Qauv XPS Uas Tsis Muaj Halogen Thiab Hluav Taws Kub
Cov tshuaj tiv thaiv hluav taws uas tsis muaj halogen (piv txwv li, phosphorus-based, nitrogen-based, lossis inorganic hydroxides) ua tiav kev tiv thaiv hluav taws los ntawm kev nqus cua sov lossis tsim cov txheej tiv thaiv, muab kev ua haujlwm zoo dua rau ib puag ncig.
(1) Cov Qauv Sib xyaw:
- Polystyrene (PS): 100phr (resin puag)
- Cov tshuaj tua hluav taws uas muaj phosphorus: 10–15phr (piv txwv li,ammonium polyphosphate (APP)los yog phosphorus liab)
- Cov nplaim taws uas siv nitrogen ua cov khoom tiv thaiv: 5–10phr (piv txwv li, melamine cyanurate (MCA))
- Cov tshuaj hydroxide inorganic: 20–30phr (piv txwv li, magnesium hydroxide lossis aluminium hydroxide)
- Tus neeg sawv cev ua npuas ncauj5–10phr (piv txwv li, carbon dioxide lossis butane)
- Cov tshuaj dispersant: 1–2phr (piv txwv li, polyethylene wax, txhim kho kev sib kis)
- Cov roj nplua nyeem1–2phr (piv txwv li, zinc stearate, ua kom cov txheej txheem ua haujlwm zoo dua)
- Tshuaj tua kab mob: 0.5–1 feem (piv txwv li, 1010 lossis 168, tiv thaiv kev puas tsuaj thaum lub sijhawm ua tiav)
(2) Txoj Kev Ua Haujlwm:
- Premix PS resin, flame retardant, dispersant, roj nplua nyeem, thiab antioxidant sib npaug zos.
- Ntxiv cov neeg sawv cev ua npuas ncauj thiab yaj-sib tov rau hauv lub extruder.
- Tswj qhov kub ntawm extrusion ntawm 180–210 ° C kom ntseeg tau tias muaj kev ua npuas dej thiab molding zoo.
(3) Cov yam ntxwv:
- Cov txiaj ntsig: Tus phooj ywg ib puag ncig, tsis muaj cov pa roj lom uas tsim tawm thaum lub sijhawm hlawv, ua raws li cov cai ib puag ncig.
- Qhov tsis zoo: Kev ua haujlwm tiv thaiv hluav taws tsawg dua, cov khoom ntxiv ntau dua, tej zaum yuav cuam tshuam rau cov khoom siv kho tshuab thiab kev ua npuas dej.
4. Cov Kev Xav Tseem Ceeb hauv Kev Tsim Qauv
(1) Kev Xaiv Hluav Taws Kub
- Cov tshuaj halogenated nplaim taws: Ua haujlwm tau zoo tab sis ua rau muaj kev pheej hmoo rau ib puag ncig thiab kev noj qab haus huv.
- Cov tshuaj tua hluav taws uas tsis muaj halogen: Zoo rau ib puag ncig tab sis xav tau cov khoom ntxiv ntau dua.
(2) Kev siv cov neeg ua haujlwm sib koom tes
- Antimony trioxide: Ua haujlwm sib koom ua ke nrog cov tshuaj halogenated flame retardants kom txhim kho qhov nplaim taws retardancy.
- Kev sib koom ua ke ntawm phosphorus-nitrogenHauv cov tshuab uas tsis muaj halogen, cov tshuaj tua hluav taws uas muaj phosphorus thiab nitrogen tuaj yeem ua haujlwm ua ke los txhim kho kev ua haujlwm zoo.
(3) Kev tawg thiab kev ua tiav
- Cov tshuaj dispersants: Xyuas kom meej tias cov tshuaj tiv thaiv hluav taws sib xyaw ua ke kom tsis txhob muaj ntau dhau hauv zos.
- Cov roj nplua nyeem: Txhim kho kev ua haujlwm kom du thiab txo cov khoom siv hnav.
(4) Kev Xaiv Tus Neeg Sawv Cev Ua Npuas Ncauj
- Cov neeg sawv cev ua npuas ncauj: Xws li CO₂ lossis butane, tus phooj ywg ib puag ncig nrog cov teebmeem ua npuas dej zoo.
- Cov tshuaj ua npuas ncaujXws li azodicarbonamide (AC), ua kom muaj kev ua npuas siab tab sis yuav tsim cov pa phem.
(5) Cov tshuaj antioxidants
Tiv thaiv kom cov khoom puas tsuaj thaum lub sijhawm ua haujlwm thiab txhim kho kev ruaj khov ntawm cov khoom.
5. Cov Ntawv Thov Ib Txwm Muaj
- Kev rwb thaiv tsev: Siv rau hauv phab ntsa, ru tsev, thiab pem teb rwb thaiv tsev.
- Kev lag luam txias: Kev rwb thaiv tsev rau kev cia khoom txias thiab cov tsheb tub yees.
- Lwm cov tebCov ntaub ntawv kho kom zoo nkauj, cov ntaub ntawv tiv thaiv suab, thiab lwm yam.
6. Cov Lus Qhia Txog Kev Txhim Kho Cov Qauv
(1) Txhim Kho Kev Ua Haujlwm Tiv Thaiv Hluav Taws
- Cov tshuaj tua hluav taws sib xyawXws li halogen-antimony lossis phosphorus-nitrogen synergies los txhim kho kev tiv thaiv hluav taws.
- Nano nplaim taws retardants: Xws li nano magnesium hydroxide lossis nano av nplaum, txhim kho kev ua haujlwm thaum txo cov khoom ntxiv.
(2) Txhim Kho Cov Khoom Siv Kho Tshuab
- Cov neeg sawv cev tawv: Xws li POE lossis EPDM, txhim kho cov khoom siv toughness thiab kev cuam tshuam tsis kam.
- Cov khoom siv ntxiv dag zog: Xws li cov iav fibers, txhim kho lub zog thiab rigidity.
(3) Txo Nqi
- Txhim kho qhov sib piv ntawm cov nplaim tawsTxo kev siv thaum ua tau raws li qhov yuav tsum tau ua kom tsis txhob muaj hluav taws.
- Xaiv cov khoom siv uas pheej yigXws li cov tshuaj tua hluav taws hauv tsev lossis cov tshuaj sib xyaw.
7. Cov Kev Cai Ib puag ncig thiab Kev Cai Tswjfwm
- Cov tshuaj halogenated nplaim tawsTxwv los ntawm cov cai xws li RoHS thiab REACH; siv nrog kev ceev faj.
- Cov tshuaj tua hluav taws uas tsis muaj halogenUa raws li cov cai ib puag ncig thiab sawv cev rau cov qauv yav tom ntej.
Kev Txheeb Xyuas
Tus qauv tsim cov tshuaj tua hluav taws rau XPS yuav tsum ua raws li cov xwm txheej siv tshwj xeeb thiab cov cai tswjfwm, xaiv ntawm cov tshuaj tua hluav taws halogenated lossis halogen-free. Cov tshuaj tua hluav taws halogenated muaj kev ua haujlwm zoo tab sis ua rau muaj kev txhawj xeeb txog ib puag ncig, thaum cov tshuaj tua hluav taws halogen-free zoo rau ib puag ncig tab sis xav tau cov khoom ntxiv ntau dua. Los ntawm kev ua kom zoo dua cov qauv thiab cov txheej txheem, cov tshuaj tua hluav taws XPS uas ua tau zoo, zoo rau ib puag ncig, thiab pheej yig tuaj yeem tsim tau kom tau raws li qhov xav tau ntawm kev rwb thaiv tsev thiab lwm yam teb.
More info., pls contact lucy@taifeng-fr.com
Lub sijhawm tshaj tawm: Tsib Hlis-23-2025
