PP V2 Flame Retardant Masterbatch Reference Formulation
Kuti uwane UL94 V2 flame retardancy muPP (polypropylene) masterbatches, musanganiswa we synergistic we flame retardants unodiwa uku uchichengetedza mashandiro ekugadzirisa uye hunhu hwemakanika. Pazasi pane kurudziro yakagadziriswa yekugadzirwa pamwe netsananguro:
I. Kurudziro yeKuumbwa Kwehwaro
Kuumbwa kweMurazvo Unodzivirira:
| Chikamu | Kurodha (wt%) | Tsananguro yeBasa |
| PP Resin | 50-60% | Resin inotakurika (inokurudzirwa kuti iite giredhi repamusoro rekuyerera kwemvura, semuenzaniso, MFI 20-30 g/10min) |
| Aruminiyamu Hypophosphite | 15-20% | Sosi yeasidhi, inokurudzira kuumbwa kwechar, kugadzikana kwakanaka kwekupisa kwePP processing |
| Zinc Borate | 5-8% | Inodzivirira moto nenzira inoshanda pamwe chete, inodzvinyirira utsi uye inowedzera kudzoreredza moto muchikamu chegasi |
| Aluminium Hydroxide Yakagadziriswa Pamusoro | 10-15% | Kuora kwe endothermic, kunoderedza tembiricha yekupisa (kurapa pamusoro, semuenzaniso, silane coupling agent, inokurudzirwa) |
| Dipentaerythritol (Di-PE) | 5-8% | Kabhoni inobva, inobatanidza neasidhi inobva kuigadzira intumescent char |
| Melamine Polyphosphate (MPP) | 3-5% | Kunobva gasi (chinhu chinokurudzirwa), chinoburitsa magasi asina simba kuti chiwedzere kugwinya kwemuviri |
| Mushonga Unodzivirira Kudonha (PTFE) | 0.3-0.5% | Inoderedza kudonha kwemvura inonyunguduka (zvingasarudzwa paV2, sezvo kudonha kwemvura kuchibvumidzwa) |
| Antioxidant (1010/168) | 0.3-0.5% | Inodzivirira kuora kwemafuta panguva yekugadzirisa |
| Mafuta ekuwedzera (Zinc Stearate) | 0.5-1% | Inovandudza kugona kwekugadzirisa uye kupararira |
| Mutakuri weRuvara & Pigment | Sezvinodiwa | Sarudza pigments dzisingapise kupisa kwakanyanya kuti usashandise zvinoderedza moto |
II. Pfungwa dzeKugadzirisa Zvinokosha
- Sisitimu Inodzivirira Moto Inobatanidza Synergistic
- Intumescent Flame Retardant (IFR):Aluminum hypophosphite (asidhi inobva) + Di-PE (kabhoni inobva) + MPP (gasi inobva) zvinoumba IFR system, zvichigadzira insulating char layer kuti ivhare kupisa neokisijeni.
- Kubatana kweZinc Borate:Inoita seyakasanganiswa nealuminium hypophosphite kuti igadzire girazi rinodzivirira, zvichiita kuti moto usarambe uchibvira.
- Aluminium Hydroxide Yakagadziriswa:Kurapa pamusoro kunoderedza kuburitswa kwehunyoro panguva yekugadzirisa ukuwo kuchipa kuora kwe endothermic kuderedza tembiricha yekupisa.
- Kugadzirisa & Kuenzanisa Kwekushanda
- Kutakura kwese kunodzivirira moto kunofanira kudzorwa panguva35-45%kudzivirira kurasikirwa kukuru kwezvinhu zvemakanika.
- Shandisaresin yePP ine MFI yakawanda (semuenzaniso, PPH-Y40)kuvandudza kupararira kwemasterbatch uye kuderedza viscosity.
- Kuyedzwa & Kusimbiswa Kwemashoko
- UL94 Muedzo weKupisa Wakamira:Iva nechokwadi chekuti moto unodzima wega mukatiMasekondi makumi matanhatumushure mekubatidza kaviri.
- Kuedzwa kweMichina:Tarisa pasimba rekusimba (≥20 MPa) uye simba rekukanganisa (≥4 kJ/m²).
- Kugadzikana kweThermal (TGA):Simbisa kuti tembiricha dzinodzora moto dzinoenderana nehukuru hwekugadzirisa kwePP (180–220°C).
III. Kugadzirisa Zvisarudzo
- Kuti Moto Urambe Uchidzoka (semuenzaniso, V0):
- Wedzera aluminium hypophosphite kusvika25%, wedzera2% silicone(kudzora utsi), uye kuwedzera PTFE ku0.8%.
- Mashandisirwo Anonyanya Kukosha Kwemari:
- Deredza huwandu hweMPP uye wedzera zvine mwero aluminium hydroxide (ita shuwa kuti kugadzirisa kwacho kwagadzikana).
IV. Zvinhu Zvikuru Zvekufunga nezvazvo
- Kugadzirwa kweMasterbatch:Sanganisa zvinhu zvinodzivisa moto ne resin inotakura;extrusion ine masikuruu maviri (180–210°C)zvinokurudzirwa.
- Kuomesa Aluminum Hydroxide:Omesa pa110°C kwemaawa manakudzivirira mabhurumu panguva yekugadzirisa.
- Di-PE/Aluminium Hypophosphite Ratio:Chengetedza1:2 kusvika 1:3kuti pave nekushanda zvakanaka kwekugadzira char.
Nekushandisa nzira iyi yekugadzirisa nekugadzirisa,UL94 V2 inodzivisa murazvozvinogona kuitwa nguva dzose uku uchichengetedza mashandiro ekugadzirisa uye kugadzikana kwemavara. Miedzo midiki inokurudzirwa kuti igadziriswe zvakanaka zvichibva pamhedzisiro yebvunzo.
More info., pls contact lucy@taifeng-fr.com
Nguva yekutumira: Chikunguru-08-2025
