PP V2 Nplaim Retardant Masterbatch Reference Formulation
Rau kev ua tiav UL94 V2 nplaim taws retardancy hauv PP (polypropylene) masterbatches, yuav tsum muaj kev sib koom ua ke ntawm cov nplaim hluav taws kub nyhiab thaum tswj kev ua haujlwm thiab cov khoom siv kho tshuab. Hauv qab no yog ib qho kev pom zoo rau kev tsim kho nrog cov lus piav qhia:
I. Base Formulation Recommendation
Flame Retardant Formulation:
| Cheebtsam | Kev thauj khoom (wt%) | Function Description |
| PP Resin | 50-60% | Carrier resin (pom zoo siab melt flow index qib, piv txwv li, MFI 20-30 g / 10min) |
| Aluminium Hypophosphite | 15-20% | Acid qhov chaw, txhawb char tsim, zoo thermal stability rau PP ua |
| Zinc Borate | 5-8% | Synergistic nplaim retardant, suppresses pa luam yeeb thiab txhim khu cov roj-theem nplaim retardancy |
| Nto-Modified Aluminium Hydroxide | 10-15% | Endothermic decomposition, txo combustion kub (kev kho deg, piv txwv li, silane coupling tus neeg sawv cev, pom zoo) |
| Dipentaerythritol (Di-PE) | 5-8% | Carbon qhov chaw, synergizes nrog acid qhov chaw los tsim intumescent char |
| Melamine Polyphosphate (MPP) | 3-5% | Gas qhov chaw (pom zoo ntxiv), tso tawm inert gases los txhim kho intumescence |
| Anti-Dripping Agent (PTFE) | 0.3-0.5% | Txo cov dej ntws tawm (yeem rau V2, raws li kev tso cai dripping) |
| Antioxidant (1010/168) | 0.3-0.5% | Tiv thaiv thermal oxidative degradation thaum ua |
| Lubricant (Zinc Stearate) | 0.5-1% | Txhim kho cov txheej txheem flowability thiab dispersion |
| Xim Carrier & Pigment | Raws li xav tau | Xaiv cov xim kub-resistant xim kom tsis txhob muaj kev cuam tshuam nrog cov nplaim hluav taws |
II. Ntsiab Optimization Points
- Synergistic nplaim retardant System
- Intumescent Flame Retardant (IFR):Aluminium hypophosphite (acid source) + Di-PE (carbon source) + MPP (gas source) tsim IFR system, tsim kom muaj txheej txheej insulating char los thaiv cov cua sov thiab oxygen.
- Zinc Borate Synergy:Reacts nrog aluminium hypophosphite los tsim ib txheej iav tiv thaiv, txhim kho roj-theem nplaim hluav taws xob retardancy.
- Hloov kho Aluminium Hydroxide:Kev kho deg txo cov dej noo tso tawm thaum lub sijhawm ua haujlwm thaum muab endothermic decomposition kom qis combustion kub.
- Kev Ua Haujlwm & Kev Ua Haujlwm Ntsuas
- Tag nrho cov nplaim retardant loading yuav tsum tau tswj ntawm35-45%kom tsis txhob muaj cov cuab yeej cuab tam tseem ceeb poob.
- SivHigh-MFI PP cob (piv txwv li, PPH-Y40)los txhim kho masterbatch dispersion thiab txo viscosity.
- Cov lus pom zoo kuaj & validation
- UL94 Vertical Hlawv Test:Xyuas kom cov nplaim taws nws tus kheej tua hauv60 vib nas thistom qab ob ignitions.
- Mechanical Testing:Tsom ntsoov rau lub zog tensile (≥20 MPa) thiab lub zog cuam tshuam (≥ 4 kJ/m²).
- Thermal Stability (TGA):Txheeb xyuas cov nplaim hluav taws kub tsis zoo sib xws PP ua ntau yam (180-220 ° C).
III. Kev hloov kho
- Rau Cov nplaim hluav taws kub siab dua (piv txwv li, V0):
- Nce aluminium hypophosphite rau25%, add2% silicone(Kev haus luam yeeb), thiab nce PTFE rau0.8%.
- Nqi-Sensitive Applications:
- Txo cov ntsiab lus MPP thiab ua kom cov txhuas hydroxide nce siab (kom ua kom ruaj khov).
IV. Cov ntsiab lus tseem ceeb
- Masterbatch Production:Pre-mix nplaim retardants nrog cov cab kuj;ntxaib ntsia hlau extrusion (180-210 ° C)pom zoo.
- Aluminium Hydroxide Drying:Qhuav ntawm110 ° C rau 4 teevtiv thaiv npuas thaum ua.
- Di-PE / Aluminium Hypophosphite Ratio:Khaws cia1 : 2 : 3rau qhov zoo tshaj plaws char formation efficiency.
Nrog rau qhov no optimized formulation thiab ua mus kom ze,UL94 V2 nplaim retardancytuaj yeem ua tiav tas li thaum khaws cia kev ua haujlwm thiab xim ruaj khov. Cov kev sim me me raug pom zoo rau kev kho kom zoo raws li qhov ntsuas tau.
More info., pls contact lucy@taifeng-fr.com
Lub sij hawm xa tuaj: Plaub Hlis-08-2025
