PBT Halogen-Free Flame Retardant Tohutoro Tohutoro
Ki te arotau i te hanga o nga mura ahi kore-halogen mo te PBT, he mea nui ki te whakataurite i te pai o te mura o te mura, te pumau waiariki, te hototahitanga o te pāmahana tukatuka, me nga taonga miihini. Kei raro nei he rautaki whakahuihui kua arotauhia me nga tātaritanga matua:
1. Nga Pahekohenga Whakatairanga Mua Ngaahi
Kōwhiringa 1: Aluminium Hypophosphite + MCA (Melamine Cyanurate) + Zinc Borate
Hangaia:
- Konumohe Hypophosphite (Te whakamaaramatanga o te wera> 300°C): Ka whakatairanga i te hanga waro i roto i te wahanga whakapoapoa me te tuku PO· tuwhenawhe i roto i te wahanga hau hei aukati i nga tauhohenga mekameka ngingiha.
- MCA (Decomposition i ~300°C): Endothermic decomposes releases inert gases (NH₃, H₂O), diluting hau mura me te pehi rewa maturuturu.
- Zinc Borate (Decomposition > 300°C): Whakarei ake i te hanga o te karaehe karaehe, ka whakaiti i te auahi me te kanapa.
Tauwehenga Manakohia:
- Konumohe Hypophosphite (10-15%) + MCA (5-8%) + Zinc Borate (3-5%).
Kōwhiringa 2: Mata-Modified Magnesium Hydroxide + Aluminium Hypophosphite + Organic Phosphinate (hei tauira, ADP)
Hangaia:
- Ko te Magnesium Hydroxide kua whakarereketia (Decomposition ~ 300 ° C): Ko te maimoatanga o te mata (silane / titanate) te whakapai ake i te whakamararatanga me te pumau o te waiariki; ka whakaitihia e te whakamahana endothermic te pāmahana rauemi.
- Phosphinate Organic (hei tauira, ADP, waiariki pūmautanga > 300°C): Tino whai hua hau-wahanga mura mura, mahi tahi me nga punaha ūkuikui-hauota.
Tauwehenga Manakohia:
- Magnesium Hydroxide (15-20%) + Aluminium Hypophosphite (8-12%) + ADP (5-8%).
2. Nga Kaihanga Kaihanga
- Nano-clay/Talc (2-3%): Ka whakapai ake i te kounga o te waro me nga taonga miihini i te wa e whakaiti ana te utaina o te mura.
- PTFE (0.2-0.5%): He kaihoko anti-dripping ki te aukati i nga rūrūtia wera.
- Paura Silicone (2-4%): Ka whakatairanga i te hanga waro matotoru, te whakarei ake i te mura o te mura me te kanapa o te mata.
3. Whakakotahitanga hei karo
- Aluminum Hydroxide: Ka whakaheke i te 180-200 ° C (i raro iho i te pāmahana tukatuka PBT o 220-250 ° C), e arai ana ki te paheketanga o mua.
- Ko te Konupora Hauwaiwai Kore i whakarereketia: Ka hiahiatia he maimoatanga mata hei aukati i te agglomeration me te waiariki i te wa e tukatuka ana.
4. Tohutohu Arotautanga Mahinga
- Maimoatanga Mata: Whakamahia nga apiha honohono silane i runga i te Mg(OH)₂ me te zinc borate hei whakarei ake i te mararatanga me te hononga atanga.
- Tukatuka Mana Pawera: Me whakarite te mura o te mura o te paheketanga o te wera> 250°C hei karo i te paheketanga.
- Taurite Taonga Miihini: Utuhia mo te ngaronga o te kaha ma te whakamahi i nga whakakii-nano (hei tauira, SiO₂) me nga whakakaha (hei tauira, POE-g-MAH).
5. Tauira Hanga
| Te mura ahi | Uta ana (wt%) | Mahi |
|---|---|---|
| Konumohe Hypophosphite | 12% | Te mura o te mura matua (waahanga hau + wahangu) |
| MCA | 6% | Te hau-waahi mura mura, te pehi auahi |
| Zinc Borate | 4% | Te hanga o te waro, te whakaheke auahi |
| Nano Talc | 3% | Te whakakaha o te Char, te whakarei miihini |
| PTFE | 0.3% | Anti-pupuhi |
6. Inenga Whakamatau Matua
- Te Whakamutunga mura: UL94 V-0 (1.6mm), LOI> 35%.
- Pūmautanga Weariki: TGA toenga > 25% (600°C).
- Ngā Āhuatanga Miihini: Te kaha mārō > 45 MPa, pānga kāniwha > 4 kJ/m².
Ma te whakatikatika pai i nga owehenga, ka taea te whakaroa i te mura o te halogen-kore i te wa e mau tonu ana te mahi a te PBT.
More info., pls send email to lucy@taifeng-fr.com
Wā tuku: Hūrae-08-2025
