PP V2 Flame Retardant Masterbatch Reference Formulation
Kuti uwane UL94 V2 murazvo wekudzoreredza muPP (polypropylene) masterbatches, musanganiswa we synergistic wezvinodzosa moto unodiwa uku uchichengetedza mashandiro ekugadzirisa uye michina zvivakwa. Pazasi pane yakagadziridzwa kurudziro ine tsananguro:
I. Base Formulation Recommendation
Flame Retardant Formulation:
| Chikamu | Kurodha (wt%) | Tsanangudzo Yebasa |
| PP Resin | 50-60% | Carrier resin (inorumbidza yakakwira melt flow index giredhi, semuenzaniso, MFI 20-30 g/10min) |
| Aluminium Hypophosphite | 15-20% | Acid sosi, inosimudzira char kuumbwa, yakanaka yekudziya kugadzikana kwePP kugadzirisa |
| Zinc Borate | 5-8% | Synergistic flame retardant, inodzvanya utsi uye inowedzera gasi-phase kunonoka kwemurazvo. |
| Surface-Modified Aluminium Hydroxide | 10-15% | Endothermic decomposition, inoderedza kupisa kwekushisa (kurapwa kwepamusoro, semuenzaniso, silane coupling agent, inokurudzirwa) |
| Dipentaerythritol (Di-PE) | 5-8% | Carbon source, inopindirana neasidhi sosi kugadzira intumescent char |
| Melamine Polyphosphate (MPP) | 3-5% | Gasi sosi (inokurudzirwa kuwedzera), inoburitsa inert magasi kuti iwedzere intumescence |
| Anti-Dripping Agent (PTFE) | 0.3-0.5% | Inoderedza kunyungudika kunyungudika (inosarudza V2, sezvo kudonha kunobvumidzwa) |
| Antioxidant (1010/168) | 0.3-0.5% | Inodzivirira thermal oxidative degradation panguva yekugadzirisa |
| Lubricant (Zinc Stearate) | 0.5-1% | Inovandudza kugadzirisa kuyerera uye kupararira |
| Ruvara Mutakuri & Pigment | Sezvinodiwa | Sarudza ma pigment anodzivirira kupisa kwepamusoro kuti udzivise kuita nezvinodzosa moto |
II. Key Optimization Points
- Synergistic Flame Retardant System
- Intumescent Flame Retardant (IFR):Aluminium hypophosphite (asidhi sosi) + Di-PE (kabhoni sosi) + MPP (gasi sosi) inoumba IFR system, ichigadzira insulating char layer yekuvhara kupisa uye oxygen.
- Zinc Borate Synergy:Zvinoita nealuminum hypophosphite kuumba girazi rinodzivirira, rinowedzera gasi-chikamu kunonoka kwemurazvo.
- Yakagadziridzwa Aluminium Hydroxide:Kurapa kwepamusoro kunoderedza kuburitswa kwemwando panguva yekugadziriswa uku uchipa endothermic decomposition kudzikisa kupisa kwekupisa.
- Kugadzirisa & Kuita Balance
- Yese yemoto retardant loading inofanirwa kudzorwa pa35-45%kudzivirira kurasikirwa kukuru kwemidziyo.
- Shandisayakakwirira-MFI PP resin (semuenzaniso, PPH-Y40)kuvandudza masterbatch kupararira uye kuderedza viscosity.
- Testing & Validation Recommendations
- UL94 Vertical Burning Test:Ita shuwa kuti moto unodzima wega mukati60 secondsmushure mekudzima mbiri.
- Mechanical Testing:Tarisa pane simba rekusimba (≥20 MPa) uye simba rekuita (≥4 kJ/m²).
- Thermal Kugadzikana (TGA):Simbisa murazvo unodzoreredza kupisa tembiricha inoenderana nePP kugadzirisa renji (180–220°C).
III. Optional Adjustments
- Kune Yepamusoro Kudzoserwa Kwemoto (semuenzaniso, V0):
- Wedzera aluminium hypophosphite kune25%, wedzera2% silicone(kusvuta kusvuta), uye kusimudza PTFE ku0.8%.
- Zvikumbiro Zvisingaite Mari:
- Deredza zvemukati zveMPP uye kuwedzera zvine mwero aluminium hydroxide (ona kugadzikana kwekugadzirisa).
IV. Pfungwa Huru
- Masterbatch Kugadzira:Pre-mix flame retardants ne carrier resin;twin-screw extrusion (180–210°C)inokurudzirwa.
- Aluminium Hydroxide Drying:Dry at110°C kwemaawa manakudzivirira mabubbles panguva yekugadzirisa.
- Di-PE/Aluminium Hypophosphite Ratio:Maitain1:2 kusvika 1:3kuitira kunyatsogadzira char kunyatsoshanda.
Neiyi yakagadziridzwa yekugadzira uye kugadzirisa maitiro,UL94 V2 murazvo kunonokainogona kuwanikwa nguva dzose uchichengetedza mashandiro ekugadzirisa uye kugadzikana kwemavara. Zviyedzo zvidiki-diki zvinokurudzirwa kugadzirisa zvakanaka zvichibva pamhedzisiro yebvunzo.
More info., pls contact lucy@taifeng-fr.com
Nguva yekutumira: Jul-08-2025
