PBT Halogen-Ọfẹ ina Retardant Reference agbekalẹ

PBT Halogen-Ọfẹ ina Retardant Reference agbekalẹ

Lati mu igbekalẹ ti awọn idaduro ina ti ko ni halogen fun PBT, o ṣe pataki lati dọgbadọgba ṣiṣe idaduro ina, iduroṣinṣin igbona, ibaramu iwọn otutu sisẹ, ati awọn ohun-ini ẹrọ. Ni isalẹ jẹ ilana iṣapeye iṣapeye pẹlu awọn itupalẹ bọtini:

1. Core Flame Retardant Awọn akojọpọ

Aṣayan 1: Aluminiomu Hypophosphite + MCA (Melamine Cyanurate) + Zinc Borate

Ilana:

• Aluminiomu Hypophosphite (Iduroṣinṣin gbona> 300 ° C): Ṣe igbega dida eedu ni ipele ti dipọ ati tu PO · radicals ni ipele gaasi lati da gbigbi awọn aati pq ijona duro.
• MCA (Idibajẹ ni ~ 300°C): Ibajẹ Endothermic tu awọn gaasi inert (NH₃, H₂O), diluting awọn gaasi ina ati didinkuro ṣiṣan yo.
• Zinc Borate (Ibajẹ> 300 ° C): Ṣe ilọsiwaju dida eedu gilasi, idinku ẹfin ati didan lẹhin.

Ipin Iṣeduro:

• Aluminiomu Hypophosphite (10-15%) + MCA (5-8%) + Zinc Borate (3-5%).

Aṣayan 2: Iṣatunṣe magnẹsia Hydroxide + Aluminiomu Hypophosphite + Organic Phosphinate (fun apẹẹrẹ, ADP)

Ilana:

• Iṣuu magnẹsia Hydroxide ti a ṣe atunṣe (Decomposition ~ 300 ° C): Itọju oju-ara (silane / titanate) ṣe atunṣe pipinka ati imuduro gbona; itutu agbaiye endothermic dinku iwọn otutu ohun elo.
• Organic Phosphinate (fun apẹẹrẹ, ADP, imuduro igbona> 300°C): Idaduro ina gaasi-ipele gaasi ti o munadoko pupọ, mimuuṣiṣẹpọ pẹlu awọn eto irawọ owurọ-nitrogen.

Ipin Iṣeduro:

• Iṣuu magnẹsia Hydroxide (15-20%) + Aluminiomu Hypophosphite (8-12%) + ADP (5-8%).

2. Iyan Synergists

• Nano-amọ/Talc (2-3%): Ṣe ilọsiwaju didara char ati awọn ohun-ini ẹrọ lakoko ti o dinku ikojọpọ ina retardant.
• PTFE (0.2-0.5%): Aṣoju atako-dripping lati ṣe idiwọ sisun droplets.
• Powder Silikoni (2-4%): Ṣe igbega idasile eedu ipon, imudara idaduro ina ati didan dada.

3. Awọn akojọpọ lati Yẹra

• Aluminiomu Hydroxide: Decomposes ni 180-200 ° C (ni isalẹ PBT processing otutu ti 220-250 ° C), yori si tọjọ ibaje.
• Iṣuu magnẹsia Hydroxide ti a ko yipada: Nilo itọju dada lati ṣe idiwọ agglomeration ati jijẹ gbigbona lakoko sisẹ.

4. Awọn imọran Imudara Iṣẹ

• Itọju Ilẹ: Lo awọn aṣoju isọpọ silane lori Mg(OH)₂ ati zinc borate lati jẹki pipinka ati isunmọ interfacial.
• Iṣakoso iwọn otutu ti n ṣiṣẹ: Rii daju iwọn otutu jijẹ ina gbigbona> 250°C lati yago fun ibajẹ.
• Iwontunwonsi Ohun-ini Mechanical: Ẹsan fun pipadanu agbara ni lilo awọn ohun elo nano-fillers (fun apẹẹrẹ, SiO₂) tabi awọn tougheners (fun apẹẹrẹ, POE-g-MAH).

5. Apeere Apeere

6. Awọn Metiriki Idanwo bọtini

• Idaduro ina: UL94 V-0 (1.6mm), LOI> 35%.
• Iduroṣinṣin Ooru: Iyoku TGA> 25% (600°C).
• Awọn ohun-ini ẹrọ: Agbara fifẹ> 45 MPa, ipa akiyesi> 4 kJ/m².

Nipa yiyi awọn ipin ti o dara, iṣẹ ṣiṣe giga-giga halogen-ọfẹ ina le ṣee ṣaṣeyọri lakoko mimu iṣẹ ṣiṣe gbogbogbo PBT.

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