PBT Halogen-Free Flame Retardant Formulation

PBT Halogen-Free Flame Retardant Formulation

Ki te whakawhanake i te punaha whakaahuru mura (FR) kore halogen mo te PBT, he mea nui ki te whakataurite i te pai o te whakamaaramatanga o te mura o te ahi, te pumau o te waiariki, te hototahitanga o te pāmahana tukatuka, me nga taonga miihini.

I. Ko nga Whakakotahitanga Whakatairanga Mua

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 (Temamahana Whakawhanaunga ~ 300°C): Ka tukuna e te whakangao hauhautanga (NH₃, H₂O), te waimeha hau mura me te pehi i te rewa.
• Zinc Borate (Decomposition temp. > 300°C): Whakarei ake i te hanga karaehe karaehe, ka whakaiti i te auahi me te kanapa.

Tauwehenga Manakohia:
Konumohe Hypophosphite (10-15%) + MCA (5-8%) + Zinc Borate (3-5%).

2. Te Mata-Whakarerekehia te Magnesium Hydroxide + Aluminium Hypophosphite + Organic Phosphinate (hei tauira, ADP)

Hangaia:

• Ko te Magnesium Hydroxide kua whakarereketia (Temamahana whakapoapoa. ~300°C): Ko te maimoatanga o te mata (silane/titanate) ka pai ake te whakamararatanga me te pumau o te waiariki i te wa e ngongo ana te wera ki te whakaiti i te pāmahana rauemi.
• Phosphinate Organic (hei tauira, ADP, Pumau Ngaawha> 300°C): Tino whai hua te hau-waahanga mura ahi, te whakakotahi me nga punaha ūkuikui-hauota.

Tauwehenga Manakohia:
Magnesium Hydroxide (15-20%) + Aluminium Hypophosphite (8-12%) + ADP (5-8%).

II. Nga Kaitautoko Kōwhiringa

• Nano Clay/Talc (2-3%): Ka whakapai ake i te kounga o te char me nga taonga miihini i te whakaiti i te inenga FR.
• PTFE (Polytetrafluoroethylene, 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.

III. 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.

IV. Nga Tohunga Arotautanga Mahinga

1. Maimoatanga Mata: Whakamahia nga apiha honoa silane ki runga i te konupora waiwai me te zinc borate hei whakarei ake i te marara me te hononga atanga.
2. Tukatuka Mana Mana: Whakaritea te FR decomposition temperature> 250°C ki te karo i te paheketanga i te wa e tukatuka ana.
3. Taurite Taonga Miihini: Whakauruhia nga whakakī-nano (hei tauira, SiO₂) me nga whakakaha (hei tauira, POE-g-MAH) hei utu mo te ngaronga kaha.

V. Tauira Hanga Tikanga

VI. Tawhā Whakamātautau 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 arotau i nga owehenga, ka taea te tutuki i te punaha whakaahuru hau-kore-kore i te wa e mau tonu ana te mahi a te PBT.

More info., pls contact lucy@taifeng-fr.com