PBT Halogen na-egbochi ire ọkụ na-efu

PBT Halogen na-egbochi ire ọkụ na-efu

Iji wulite sistemu ọkụ na-ere ọkụ na-enweghị halogen (FR) maka PBT, ọ dị mkpa iji dozie nrụpụta ire ere ọkụ, nkwụsi ike ọkụ, ndakọrịta okpomọkụ, yana akụrụngwa akụrụngwa.

I. Nchikota isi ire ọkụ

1. Aluminium Hypophosphite + MCA (Melamine Cyanurate) + Zinc Borate

Usoro:

• Aluminium Hypophosphite (Nkwụsi ike nke okpomọkụ> 300 ° C): Na-akwalite nhazi cha cha n'ime oge condensed wee wepụta PO · radicals na mpaghara gas iji kwụsịtụ mmeghachi omume ọkụ ọkụ.
• MCA (okpomọkụ na-emebi emebi. ~ 300ºC): Endothermic decomposition na-ewepụta ikuku inert (NH₃, H₂O), na-agbaze gas na-ere ọkụ ma na-egbochi mmiri na-agbaze.
• Zinc Borate (okpomọkụ na-emebi emebi> 300°C): Na-akwalite nhazi cha cha enyo, na-ebelata anwụrụ ọkụ na ọkụ ọkụ.

Oke akwadoro:
Aluminom Hypophosphite (10-15%) + MCA (5-8%) + Zinc Borate (3-5%).

2. Magnesium Hydroxide + Aluminom Hypophosphite + Organic Phosphinate (dịka ọmụmaatụ, ADP) gbanwetụrụ elu.

Usoro:

• Magnesium Hydroxide gbanwetụrụ (okpomọkụ na-emebi emebi. ~ 300 Celsius C): Ngwọta ihu igwe (silane / titanate) na-eme ka mgbasawanye na nkwụsi ike nke okpomọkụ ka ọ na-etinye okpomọkụ na ala okpomọkụ.
• Organic Phosphinate (dịka, ADP, Thermal nkwụsi ike> 300°C): Nkwụghachi ọkụ na-ekpo ọkụ gas na-arụ ọrụ nke ukwuu, na-emekọrịta na sistemu phosphorus-nitrogen.

Oke akwadoro:
Magnesium Hydroxide (15-20%) + Aluminom Hypophosphite (8-12%) + ADP (5-8%).

II. Nhọrọ Synergists

• Nano Clay/Talc (2-3%): Na-emeziwanye ogo cha cha yana ihe eji arụ ọrụ ma na-ebelata usoro onunu ogwu FR.
• PTFE (Polytetrafluoroethylene, 0.2-0.5%): Onye na-eme ihe na-egbochi mmiri iji gbochie ụmụ irighiri mmiri ọkụ.
• Silicone ntụ ntụ (2-4%): Na-akwalite nguzobe cha cha, na-eme ka ire ọkụ na-azụ azụ na nchapụta elu.

III. Ngwakọta iji zere

• Aluminom Hydroxide: Na-emebi na 180-200 ° C (n'okpuru PBT nhazi temp. nke 220-250 ° C), na-eduga n'ịkwalite mmebi.
• Magnesium Hydroxide na-agbanweghị: Na-achọ ọgwụgwọ elu iji gbochie agglomeration na thermal ire ere n'oge nhazi.

IV. Ntụnye nkwalite arụmọrụ

1. Ọgwụgwọ dị n'elu: Jiri ndị na-ejikọta silane na magnesium hydroxide na zinc borate iji kwalite mgbasasa na njikọta ihu.
2. Njikwa okpomọkụ na-arụ ọrụ: Gbaa mbọ hụ na okpomọkụ nke ire ere FR> 250°C iji zere mmebi n'oge nhazi.
3. Nhazi Ngwongwo Mechanical: Tinye nano-fillers (dịka, SiO₂) ma ọ bụ ndị siri ike (dịka, POE-g-MAH) iji kwụọ ụgwọ maka mfu ike.

V. Ihe Nlereanya Nhazi

VI. Usoro Nnwale igodo

• Nkwụghachi ọkụ: UL94 V-0 (1.6mm), LOI> 35%.
• Nkwụsi ike nke okpomọkụ: ihe fọdụrụ TGA> 25% (600°C).
• Ihe arụrụ arụ: Ike mgbagharị> 45 MPa, mmetụta a na-ahụ anya> 4 kJ/m².

Site n'ịkwalite oke ndị ahụ, enwere ike nweta sistemu ọkụ na-ere ọkụ na-enweghị halogen nke ọma ma na-ejigide arụmọrụ PBT n'ozuzu ya.

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