Extruded polystyrene board (XPS) ndi chinthu chomwe chimagwiritsidwa ntchito kwambiri pomanga nyumba, ndipo mawonekedwe ake oletsa moto ndi ofunikira pachitetezo chomanga. Mapangidwe a zoletsa moto za XPS zimafunikira kuganiziridwa mozama za kusagwira bwino ntchito kwa malawi, kagwiridwe kake, mtengo, ndi zofunikira zachilengedwe. Pansipa pali mamangidwe atsatanetsatane ndi mafotokozedwe amomwe amawotchera malawi a XPS, okhudzana ndi mayankho a halogenated komanso opanda halogen.
1. Mfundo Zopangira Mapangidwe a XPS Flame Retardant
Chigawo chachikulu cha XPS ndi polystyrene (PS), ndipo kusinthidwa kwake koletsa moto kumatheka makamaka powonjezera zoletsa moto. Kapangidwe kapangidwe kamayenera kutsatira mfundo izi:
- High flame retardancy: Kukumana ndi miyezo yoletsa moto ya zida zomangira (mwachitsanzo, GB 8624-2012).
- Kukonza magwiridwe: The retardant lawi sayenera kukhudza kwambiri thovu ndi akamaumba ndondomeko XPS.
- Kukonda chilengedwe: Zoletsa moto zopanda halogen ziyenera kukhala patsogolo kuti zigwirizane ndi malamulo a chilengedwe.
- Kuwongolera mtengo: Chepetsani ndalama mukakumana ndi zofunikira zogwirira ntchito.
2. Halogenated Flame Retardant XPS Formulation
Ma halogenated flame retardants (mwachitsanzo, brominated) amasokoneza kuyaka kwa tcheni potulutsa ma halogen radicals, kupereka mphamvu yoletsa moto koma kuyika chiwopsezo cha chilengedwe ndi thanzi.
(1) Kupanga Kupanga:
- Polystyrene (PS): 100phr (base resin)
- Brominated flame retardant: 10–20phr (mwachitsanzo, hexabromocyclododecane (HBCD) kapena brominated polystyrene)
- Antimony trioxide (synergist): 3-5phr (imapangitsa kuti moto usavutike)
- Wotulutsa thovu: 5-10phr (mwachitsanzo, carbon dioxide kapena butane)
- Wobalalitsa: 1-2phr (mwachitsanzo, sera ya polyethylene, imathandizira kubalalika kwa zoletsa moto)
- Mafuta: 1-2phr (mwachitsanzo, calcium stearate, imawonjezera kusungunuka kwa madzi)
- Antioxidant: 0.5-1 gawo (mwachitsanzo, 1010 kapena 168, amalepheretsa kuwonongeka panthawi yokonza)
(2) Njira Yopangira:
- Premix PS resin, retardant flame, synergist, dispersant, lubricant, ndi antioxidant uniform.
- Onjezani thovu ndi kusungunula-kusakaniza mu extruder.
- Yang'anirani kutentha kwa extrusion pa 180-220 ° C kuti muwonetsetse kuti thovu ndi kuumba bwino.
(3) Makhalidwe:
- Ubwino wake: Kugwiritsa ntchito bwino kwa moto woyaka, kutsika kwapang'onopang'ono, komanso kutsika mtengo.
- Zoipa: Itha kutulutsa mpweya wapoizoni (mwachitsanzo, haidrojeni bromidi) ikayaka, zomwe zingawononge chilengedwe.
3. Mapangidwe a XPS Opanda Moto Wopanda Halogen
Zolepheretsa malawi opanda halogen (monga phosphorous, nitrogen-based, kapena inorganic hydroxides) zimalepheretsa kuyamwa kwa malawi kudzera mu kuyamwa kutentha kapena kupanga zigawo zoteteza, zomwe zimapangitsa kuti chilengedwe chiziyenda bwino.
(1) Kupanga Kupanga:
- Polystyrene (PS): 100phr (base resin)
- Phosphorous-based flame retardant: 10-15phr (mwachitsanzo,ammonium polyphosphate (APP)kapena phosphorous wofiira)
- Nayitrogeni yochokera ku flame retardant: 5–10phr (mwachitsanzo, melamine cyanrate (MCA))
- Inorganic hydroxide20-30phr (mwachitsanzo, magnesium hydroxide kapena aluminium hydroxide)
- Wotulutsa thovu: 5-10phr (mwachitsanzo, carbon dioxide kapena butane)
- Wobalalitsa: 1-2phr (mwachitsanzo, sera ya polyethylene, imathandizira kubalalitsidwa)
- Mafuta: 1-2phr (mwachitsanzo, zinc stearate, imawonjezera kusungunuka kwa madzi)
- Antioxidant: 0.5-1 gawo (mwachitsanzo, 1010 kapena 168, amalepheretsa kuwonongeka panthawi yokonza)
(2) Njira Yopangira:
- Premix PS resin, retardant flame, dispersant, lubricant, and antioxidant uniform.
- Onjezani thovu ndi kusungunula-kusakaniza mu extruder.
- Yang'anirani kutentha kwa extrusion pa 180-210 ° C kuti muwonetsetse kuti thovu ndi kuumba bwino.
(3) Makhalidwe:
- Ubwino wake: Wochezeka ndi chilengedwe, palibe mpweya wapoizoni wopangidwa pakuyaka, wotsatira malamulo achilengedwe.
- Zoipa: Kuchepetsa mphamvu yochepetsera moto, kuchuluka kwazinthu zowonjezera, kumatha kukhudza magwiridwe antchito amakina ndikuchita thovu.
4. Mfundo zazikuluzikulu pakupanga mapangidwe
(1) Kusankha Koletsa Moto Wamoto
- Ma halogenated flame retardants: Kuchita bwino kwambiri koma kumawononga chilengedwe komanso thanzi.
- Zoletsa zamoto zopanda halogen: Okonda zachilengedwe koma amafunikira zowonjezera zowonjezera.
(2) Kugwiritsa Ntchito Ma Synergists
- Antimony trioxide: Imagwira ntchito mogwirizana ndi ma halogenated flame retardants kuti iwonjezere kuchedwa kwamoto.
- Phosphorous-nitrogen synergy: Mu machitidwe opanda halogen, phosphorous ndi nitrogen-based flame retardants amatha kugwirira ntchito limodzi kuti apite patsogolo.
(3) Kubalalitsidwa ndi Kusasinthika
- Obalalitsa: Onetsetsani kubalalitsidwa kofanana kwa zoletsa moto kuti mupewe kuchuluka kwambiri komwe kumakhala komweko.
- Mafuta: Sinthani processing fluidity ndi kuchepetsa zida kuvala.
(4) Kusankha Wopanga thovu
- Zinthu zotulutsa thovu: Monga CO₂ kapena butane, okonda zachilengedwe okhala ndi zotsatira zabwino zotulutsa thovu.
- Mankhwala otulutsa thovu: Monga azodicarbonamide (AC), kutulutsa thovu kwakukulu koma kumatha kutulutsa mpweya woyipa.
(5) Antioxidants
Pewani kuwonongeka kwa zinthu panthawi yokonza ndikuwonjezera kukhazikika kwazinthu.
5. Zomwe Zimagwira Ntchito
- Insulation ya nyumba: Amagwiritsidwa ntchito m'makoma, madenga, ndi zotsekera pansi.
- Cold chain logistics: Insulation yosungirako kuzizira ndi magalimoto osungidwa mufiriji.
- Minda ina: Zida zokongoletsa, zotchingira mawu, ndi zina.
6. Malangizo Okonzekera Kukonzekera
(1) Kupititsa patsogolo Kuchita Bwino kwa Flame Retardant
- Zosakaniza zamoto retardants: Monga ngati halogen-antimony kapena phosphorous-nitrogen synergies kuti awonjezere kuchedwa kwa lawi.
- Nano flame retardants: Monga nano magnesium hydroxide kapena dongo la nano, kuwongolera magwiridwe antchito ndikuchepetsa zowonjezera.
(2) Kupititsa patsogolo Katundu Wamakina
- Toughening agents: Monga POE kapena EPDM, kupititsa patsogolo kulimba kwa zinthu komanso kukana mphamvu.
- Kuwonjezera fillers: Monga ulusi wagalasi, kukulitsa mphamvu ndi kusasunthika.
(3) Kuchepetsa Mtengo
- Konzani ma retardant amoto: Chepetsani kugwiritsa ntchito mukakumana ndi zoletsa moto.
- Sankhani zipangizo zotsika mtengo: Monga zopangira zapakhomo kapena zosakanikirana zamoto.
7. Zofunikira Zachilengedwe ndi Zowongolera
- Ma halogenated flame retardants: Zoletsedwa ndi malamulo monga RoHS ndi REACH; gwiritsani ntchito mosamala.
- Zoletsa zamoto zopanda halogen: Tsatirani malamulo a chilengedwe ndikuyimira zomwe zidzachitike m'tsogolo.
Chidule
Mapangidwe a zoletsa malawi a XPS akuyenera kutengera momwe amagwiritsidwira ntchito komanso zofunikira pakuwongolera, kusankha pakati pa zoletsa moto za halojeni kapena zopanda halogen. Ma halogenated flame retardants amapereka mphamvu zambiri koma amayambitsa zovuta zachilengedwe, pomwe zoletsa moto za halogen ndizogwirizana ndi chilengedwe koma zimafunikira zowonjezera zowonjezera. Pokonza mapangidwe ndi njira, XPS yogwira ntchito kwambiri, yokoma zachilengedwe, komanso yotsika mtengo ya XPS yoletsa moto kuti ikwaniritse zofunikira pakumanga ndi madera ena.
More info., pls contact lucy@taifeng-fr.com
Nthawi yotumiza: May-23-2025
