PP V2 Cov Tshuaj Tiv Thaiv Hluav Taws Kub Masterbatch Siv Cov Qauv Siv
Yuav kom ua tiav UL94 V2 nplaim taws retardancy hauv PP (polypropylene) masterbatches, yuav tsum muaj kev sib xyaw ua ke ntawm cov nplaim taws retardants thaum tswj kev ua haujlwm thiab cov khoom siv kho tshuab. Hauv qab no yog cov lus pom zoo formulation nrog cov lus piav qhia:
I. Cov Lus Qhia Txog Kev Tsim Cov Qauv Tseem Ceeb
Cov Qauv Tiv Thaiv Hluav Taws Kub:
| Cheebtsam | Thauj khoom (wt%) | Kev piav qhia txog kev ua haujlwm |
| PP Resin | 50-60% | Cov tshuaj cob qhia (pom zoo kom muaj qib siab ntawm cov dej ntws, piv txwv li, MFI 20-30 g / 10 feeb) |
| Aluminium Hypophosphite | 15-20% | Qhov chaw acid, txhawb nqa kev tsim char, zoo thermal stability rau PP ua |
| Zinc Borate | 5-8% | Synergistic nplaim taws retardant, suppresses pa luam yeeb thiab ua kom cov roj-theem nplaim taws retardancy |
| Aluminium Hydroxide uas tau hloov kho saum npoo av | 10-15% | Kev rhuav tshem cov khoom siv hluav taws xob (endothermic decomposition), txo qhov kub ntawm kev sib xyaw (kev kho qhov chaw, piv txwv li, tus neeg sawv cev silane coupling, pom zoo) |
| Dipentaerythritol (Di-PE) | 5-8% | Cov pa roj carbon, sib koom ua ke nrog cov kua qaub los tsim cov hluav taws xob intumescent |
| Melamine Polyphosphate (MPP) | 3-5% | Qhov chaw muaj roj (cov tshuaj ntxiv uas pom zoo), tso tawm cov pa roj inert los txhim kho kev ua kom lub cev muaj zog |
| Tus Neeg Sawv Cev Tiv Thaiv Kev Nchuav (PTFE) | 0.3-0.5% | Txo cov dej yaj uas yaj (xaiv tau rau V2, vim tias cov dej ntws raug tso cai) |
| Cov tshuaj tua kab mob (1010/168) | 0.3-0.5% | Tiv thaiv kev puas tsuaj ntawm thermal oxidative thaum lub sijhawm ua haujlwm |
| Cov roj nplua nyeem (Zinc Stearate) | 0.5-1% | Txhim kho kev ua haujlwm flowability thiab dispersion |
| Xim Carrier & Pigment | Raws li qhov xav tau | Xaiv cov xim uas tiv taus kub heev kom tsis txhob muaj kev cuam tshuam nrog cov tshuaj tua hluav taws |
II. Cov Ntsiab Lus Tseem Ceeb rau Kev Txhim Kho
- Synergistic Flame Retardant System
- Intumescent Flame Retardant (IFR):Aluminium hypophosphite (acid qhov chaw) + Di-PE (carbon qhov chaw) + MPP (gas qhov chaw) tsim ib lub IFR system, tsim ib txheej char insulating los thaiv cua sov thiab oxygen.
- Kev sib xyaw ua ke ntawm Zinc Borate:Reacts nrog txhuas hypophosphite los tsim ib txheej tiv thaiv iav, ua kom cov nplaim taws tsis kam ntawm cov pa roj.
- Hloov Kho Aluminium Hydroxide:Kev kho qhov chaw txo cov dej noo thaum lub sijhawm ua haujlwm thaum muab kev rhuav tshem endothermic kom qis dua qhov kub combustion.
- Kev Ua Haujlwm & Kev Ua Tau Zoo Sib Npaug
- Tag nrho cov khoom siv hluav taws kub yuav tsum tau tswj hwm ntawm35-45%kom tsis txhob muaj kev poob khoom tseem ceeb.
- Sivcov tshuaj PP MFI siab (piv txwv li, PPH-Y40)los txhim kho masterbatch dispersion thiab txo viscosity.
- Cov Lus Qhia Txog Kev Ntsuas & Kev Pom Zoo
- UL94 Kev Ntsuas Kub Ntsug:Xyuas kom tseeb tias cov nplaim taws tua nws tus kheej hauv60 vib nas thistom qab ob lub ignition.
- Kev Ntsuas Tshuab:Tsom ntsoov rau lub zog tensile (≥20 MPa) thiab lub zog cuam tshuam (≥4 kJ/m²).
- Kev Ruaj Ntseg Kub (TGA):Xyuas kom tseeb tias qhov kub ntawm cov nplaim taws uas lwj sib xws nrog cov txheej txheem ua PP (180–220°C).
III. Kev Hloov Kho Xaiv Tau
- Rau Kev Tiv Thaiv Hluav Taws Kub Siab Dua (piv txwv li, V0):
- Ua kom cov txhuas hypophosphite nce ntxiv rau25%, ntxiv2% silicone(kev tswj pa luam yeeb), thiab tsa PTFE rau0.8%.
- Cov Ntawv Thov Uas Muaj Tus Nqi Uas Xav Tau:
- Txo cov ntsiab lus MPP thiab nce me ntsis aluminium hydroxide (xyuas kom ruaj khov ntawm kev ua haujlwm).
IV. Cov Kev Xav Tseem Ceeb
- Kev Tsim Khoom Masterbatch:Ua ntej sib tov cov tshuaj tiv thaiv hluav taws nrog cov roj hmab nqa khoom;kev rho tawm ob lub ntsia hlau (180–210 ° C)pom zoo.
- Kev ziab Aluminium Hydroxide:Qhuav ntawm110°C rau 4 teevkom tiv thaiv cov npuas thaum lub sijhawm ua tiav.
- Di-PE / Aluminium Hypophosphite Ratio:Tswj1:2 txog 1:3rau qhov ua tau zoo tshaj plaws ntawm kev tsim cov char.
Nrog rau txoj kev tsim cov qauv thiab kev ua tiav zoo tshaj plaws no,UL94 V2 nplaim taws retardancytuaj yeem ua tiav tas li thaum tseem khaws cia kev ua haujlwm thiab kev ruaj khov ntawm xim. Kev sim me me raug pom zoo kom ua kom zoo raws li cov txiaj ntsig ntawm kev sim.
More info., pls contact lucy@taifeng-fr.com
Lub sijhawm tshaj tawm: Lub Xya Hli-08-2025
