Te Hanganga Ārai Mumura Kore-Halogen PBT
Hei whakawhanake i tētahi pūnaha ārai mura kore-halogen (FR) mō te PBT, he mea nui kia whakatauritehia te whai huatanga o te ārai mura, te pumau wera, te hototahitanga pāmahana tukatuka, me ngā āhuatanga hangarau.
I. Ngā Huinga Ārai Mura Matua
1. Konumohe Hypophosphite + MCA (Melamine Cyanurate) + Konutea Borate
Tikanga:
- Konumohe Hipōhowhita (Te pumau wera > 300°C): Ka whakatairanga i te hanganga waro i te wāhanga whakakōpikopiko, ka tukuna hoki ngā rauropi PO· i te wāhanga hau hei whakakore i ngā tauhohenga mekameka mura.
- MCA (Pamahana pirau ~300°C): Ka tukuna e te pirau endothermic ngā hau kore mahi (NH₃, H₂O), ka whakawaiwai i ngā hau mura, ka pehi hoki i te maturuturu rewa.
- Konutea Pōrata (Pāmahana pirau > 300°C): Ka whakarei ake i te hanganga waro karāhe, ka whakaiti i te paoa me te kanapa i muri mai.
Tauwehenga i Manakohia:
Konumohe Hipofosfit (10-15%) + MCA (5-8%) + Konutea Pōrata (3-5%).
2. Konupūmā Waikawa Whakarerekētia-Mata + Konumohe Hipōhospita + Pūkawa Waro (hei tauira, ADP)
Tikanga:
- Te Waikawa Konupora Kua Whakarerekētia (Pāmahana pirau ~300°C): Mā te maimoatanga mata (silane/titanate) ka whakapai ake i te marara me te pumau o te wera, me te mimiti hoki i te wera hei whakaiti i te pāmahana o te rauemi.
- Phosphinate Waro (hei tauira, ADP, Te pumau wera > 300°C): He tino whai hua te aukati mura hau-āhua, e mahi tahi ana me ngā pūnaha phosphorus-hauota.
Tauwehenga i Manakohia:
Konupora Waikawa (15-20%) + Konumohe Hipōhospita (8-12%) + ADP (5-8%).
II. Ngā Kaitautoko Āwhina Kōwhiringa
- Nano Clay/Talc (2-3%): Ka whakapai ake i te kounga o te waro me ngā āhuatanga miihini, me te whakaiti i te horopeta FR.
- PTFE (Polytetrafluoroethylene, 0.2-0.5%): He mea ārai i te maturuturu hei ārai i ngā pata e mura ana.
- Paura Hiraka (2-4%): Ka whakatairanga i te hanganga o te waro matotoru, ka whakarei ake i te ātete mura me te kanapa o te mata.
III. Ngā Whakakotahitanga hei Ārai
- Konumohe Hauwai: Ka pirau i te 180-200°C (i raro iho i te pāmahana tukatuka PBT o te 220-250°C), ka hua ake te pirau wawe.
- Konupora Waikawa Kāore i Whakarerekētia: Me rongoā te mata hei ārai i te haaputupututanga me te pirau wera i te wā e tukatukahia ana.
IV. Ngā Taunakitanga mō te Arotau Mahi
- Maimoatanga Mata: Whakamahia ngā kaihoko hononga silane ki te konupora hauwai me te konutea borate hei whakarei ake i te mararatanga me te hononga ā-mata.
- Whakahaere Pāmahana Tukatuka: Me whakarite kia neke ake i te 250°C te pāmahana pirau FR hei karo i te pirau i te wā e tukatuka ana.
- Taurite Āhuatanga Mīhini: Tāpirihia ngā whakakī-nano (hei tauira, SiO₂) ngā whakapakeke rānei (hei tauira, POE-g-MAH) hei whakakapi mō te ngaronga o te kaha.
V. Tauira Hanganga Noa
| Ārai Mura | Utaina (wt%) | Mahi |
|---|---|---|
| Konumohe Hypophosphite | 12% | FR Tuatahi (wāhanga whakakōpikopiko + hau) |
| MCA | 6% | FR wāhanga-hau, pehi paowa |
| Konutea Pōrata | 4% | Te hanganga waro mahi tahi, te pehi paowa |
| Nano Talc | 3% | Whakakaha waro, whakarei ake miihini |
| PTFE | 0.3% | Ārai-maturuturu |
VI. Ngā Tawhā Whakamātautau Matua
- Ātete Mura: UL94 V-0 (1.6mm), LOI > 35%.
- Te Pūmautanga o te Wera: Te toenga TGA > 25% (600°C).
- Ngā Āhuatanga Ā-ringa: Kaha kume > 45 MPa, pānga kōhao > 4 kJ/m².
Mā te arotau i ngā ōwehenga, ka taea te whakatutuki i tētahi pūnaha ārai mura kore-halogen whai hua, me te pupuri tonu i te mahi whānui a te PBT.
More info., pls contact lucy@taifeng-fr.com
Te wā tuku: Hōngongoi-01-2025
