PBT Halogen-Free Flame Retardant

PBT Halogen-Free Flame Retardant

Si loo horumariyo nidaamka dab-demiska halogen-free (FR) ee PBT, waa lagama maarmaan in la isku dheellitiro waxtarka daahitaanka ololka, xasilloonida kulaylka, ku habboonaanta heerkulka, iyo sifooyinka farsamada.

I. Isku darka Ololka Muhiimka ah

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

Farsamaynta:

• Aluminium Hypophosphite (Xasilloonida kulaylka> 300 ° C): Waxay kor u qaaddaa samaynta dhuxusha ee wejiga cufan waxayna sii deysaa PO · radicals ee wejiga gaaska si ay u joojiso falcelinta silsiladda gubashada.
• MCA (kulka qudhunka. ~ 300°C): Qulqulka Endothermic wuxuu sii daayaa gaasas aan shaqaynayn (NH₃, H₂O), oo bakhtiiya gaasaska ololaya iyo xakamaynta qulqulka dhalaalka.
• Zinc Borate (heerkulka qudhunka> 300°C): Waxay wanaajisaa samaynta dhuxusha dhalooyinka, yaraynta qiiqa iyo dhalaalka ka dib.

Saamiga lagu taliyay:
Aluminium Hypophosphite (10-15%) + MCA (5-8%) + Zinc Borate (3-5%).

2. Maadada Magnesium Hydroxide + Aluminium Hypophosphite + Aluminium Fosfinate Dabiici ah oo La Hagaajiyay (tusaale, ADP)

Farsamaynta:

• Magnesium Hydroxide oo la beddelay (kulka burburka. ~ 300 ° C): Daaweynta dusha sare (silane/titanate) waxay wanaajisaa kala firdhisanaanta iyo xasilloonida kulaylka iyadoo la nuugayo kulaylka si loo yareeyo heerkulka walxaha.
• Fosfinate-dabiiciga ah (tusaale, ADP, Deganaanshaha kulaylka> 300°C): Dib-u-dejiya gaaska-waji-gaas oo aad waxtar u leh, oo la shaqeeya nidaamyada fosfooraska-nitrojiinka.

Saamiga lagu taliyay:
Magnesium Hydroxide (15-20%) + Aluminium Hypophosphite (8-12%) + ADP (5-8%).

II. Isku-dhafka ikhtiyaariga ah

• Nano Clay/Talc (2-3%): Waxay wanaajisaa tayada qashin-qubka iyo guryaha farsamada iyadoo la dhimayo qiyaasta FR.
• PTFE (Polytetrafluoroethylene, 0.2-0.5%): Walaxda ka-hortagga dareeraha si looga hortago dhibco gubanaya.
• Budada Silikoon (2-4%): Waxay kor u qaadaa samaynta dhuxusha cufan, kor u qaadaysa dib u dhaca ololka iyo dhalaalka dushiisa.

III. Isku-dhafka si looga fogaado

• Aluminium Hydroxide: Waxa ay ku duntaa 180-200°C (oo ka hooseeya heerkulka farsamaynta PBT ee 220-250°C), taas oo keenta hoos u dhac degdeg ah.
• Magnesium Hydroxide oo aan la beddelin: Waxay u baahan tahay daawaynta dusha sare si looga hortago qallafsanaanta iyo kulaylka inta lagu jiro habaynta.

IV. Talooyinka Hagaajinta Waxqabadka

1. Daawaynta Dusha sare: Isticmaal walxaha isku xidha silane ee magnesium hydroxide iyo zinc borate si aad kor ugu qaaddo kala firdhisanaanta iyo isku xidhka wajiga dhexdooda.
2. Hagaajinta Xakamaynta Heerkulka: Hubi heerkulka burburka FR> 250°C si aad isaga ilaaliso xaalufka inta lagu jiro habaynta.
3. Isu-dheellitirka Hantida Makaanikada: Isku-dar nano-fillers (tusaale, SiO₂) ama qalabeeyayaasha (tusaale, POE-g-MAH) si loo magdhabo luminta xoogga.

V. Tusaalaha Habboon ee Caadiga ah

VI. Halbeegyada Imtixaanka Furaha

• Dib u Dhigista Ololka: UL94 V-0 (1.6mm), LOI> 35%.
• Dejinta kulaylka: Hadhaaga TGA> 25% (600°C).
• Guryaha Makaanikada: Xoogga xajinta> 45 MPa, saameyn muuqata> 4 kJ/m².

Marka la wanaajiyo saamiga, nidaam wax ku ool ah oo aan lahayn halogen oo dab-demis ah ayaa la gaari karaa iyadoo la ilaalinayo waxqabadka guud ee PBT.

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