O se fa'asinomaga e fa'asa'o ai le mu mo SK Polyester ES500 (UL94 V0 fa'ailoga).

O se fa'asinomaga e fa'asa'o ai le mu mo SK Polyester ES500 (UL94 V0 fa'ailoga).

I. Fuafuaga Fuafuaga Fa'atatau

1. Fa'atasiga o le substrate
   • SK Polyester ES500: Ose polyester thermoplastic ma le vevela masani ole gaosiga ole 220–260°C. E tatau ona tatalia le fa'afefe o le afi i lenei va'aiga vevela.
   • Manaoga Autu: Paleni le mu (V0), mea faʻainisinia (malosi / aʻafiaga malosi), ma le faʻaogaina o le suavai.
2. Synergistic Flame Retardant System
   • Ultrafine Aluminum Hydroxide (ATH): Fa'ato'a mumu mumu, fa'agata fa'ama'i. O le utaina e tatau ona faapaleni le mumu ma mea faʻainisinia.
   • Aluminum Hypophosphite: Char-forming synergist, galulue faatasi ma le ATH e fatu ai se aafiaga synergistic phosphorus-alumini, faʻaleleia le lelei o le char.
   • Zinc Borate: Char enhancer, taofiofia le asu, ma fai se pa puipui mafiafia ma le ATH.
   • MCA (Melamine Cyanurate): Fa'asao le afi mumu, fa'afefete le okesene ma fa'afefe ai le fa'afefeteina.

II. Fautuaina Fausia (Paesene o le Mamafa)

III. Fa'atonuga Fa'atonuga

1. Fa'ata'ape'apeina Optimization
   • Togafitiga muamua: Fa'asusu le ATH ma le alumini hypophosphite ile 1% KH-550 vaifofo o le ethanol mo le 2 itula, ona fa'amamago lea ile 80°C.
   • Fa'asologa Fa'afefiloi:
     1. Fa'apalapala fa'apala + fa'asalalauina + so'o fa'apipi'i → Fa'afefiloi maualalo-saosaoa (500 rpm, 5 min).
     2. Fa'aopoopo le ATH/alumini hypophosphite ua fa'aleleia → Fa'asao maualuga (2500 rpm, 20 min).
     3. Fa'aopoopo le zinc borate/MCA/PTFE → Fa'afefiloiga maualalo (800 rpm, 10 min).
   • Meafaigaluega: Twin-screw extruder (sone vevela: sone fafaga 200 ° C, sone liusuavai 230 ° C, mate 220 ° C).
2. Fa'atonuina le Pulea o le Tempera
   • Ia mautinoa le vevela o le liusuavai <250°C e taofia ai le pala o le MCA (e pala le MCA ile 250–300°C).
   • Pellets malulu vai pe a uma ona extrusion e taofia le femalaga'i mu.

IV. Mechanism Synergistic e taofia ai le afi

1. ATH + Aluminium Hypophosphite
   • E mitiia e le ATH le vevela ma fa'asa'oloto ai le ausa vai, fa'afefeteina kasa mu.
   • O le alumini hypophosphite e fa'atupuina ai le ga'o mafiafia (AlPO₄), e poloka ai le felauaiga o le vevela.
2. Zinc Borate + MCA
   • Zinc borate e fai ai se pa tioata i luga o ta'e.
   • MCA e pala e fa'asa'oloto ai le NH₃, fa'amalulu le okesene ma fa'alavelaveina fa'alavelave fa'asa'oloto.
3. PTFE Anti-Dripping
   • PTFE micropowder e fausia ai se fesoʻotaʻiga fibrous, faʻaitiitia ai le faʻafefe faʻafefe.

V. Fa'atulagaina o Fa'atinoga & Fa'afitauli

VI. Fua Fa'amaonia

1. Su'ega UL94 V0:
   • 1.6 mm ma le 3.2 mm fa'ata'ita'iga, taimi mu atoa <50 sec pe a mae'a lua fa'amumu, leai se fa'amumu fa'afefe.
2. LOI: Target ≥30% (moni ≥28%).
3. Meatotino Fa'ainisinia:
   • Malosi fa'amalosi > 40 MPa, malosi fa'a'ai > 5 kJ/m² (ASTM standard).
4. Malosi'a (TGA):
   • O totoe o le sua ile 800°C > 20%, le vevela muamua o le pala > 300°C.

VII. Fa'ata'ita'iga Fa'asinomaga Fa'atusa

O lenei faʻatulagaina ma le faʻasologa o le mamanu e ausia lelei le UL94 V0 mumu mumu mo SK Polyester ES500 aʻo faapaleniina le gaioiga ma mea faʻainisinia. O fa'ata'ita'iga la'ititi e fautuaina e fa'amaonia le ta'ape a'o le'i fa'amalieina fua fa'atatau (fa'ata'ita'iga, faapaleni alumini hypophosphite ma MCA). Mo le fa'aleleia atili o le mu, mafaufau e fa'aopoopo i ai le 2% boron nitride nanosheets (BNNS) e avea o se mea e fa'aulu ai le vevela e lua-fa'aoga.

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