Yakarongeka Solution Yekudzikisa TPU Firimu Utsi Density

Yakarongeka Solution Yekudzikisa TPU Firimu Smoke Density (Iyezvino: 280; Target: <200)
(Magadzirirwo azvino: Aluminium hypophosphite 15 phr, MCA 5 phr, Zinc borate 2 phr)

I. Kuongorora Kwenyaya

1. Zvinogumira Pakugadzirwa Kwezvino:

• Aluminium hypophosphite: Inonyanya kudzvanya kupararira kwemurazvo asi ine hutsi hushoma hwekudzvinyirira.
• MCA: Gas-phase flame retardant inoshanda pakuvheneka mushure (yatosangana nedonzvo) asi haina kukwana kuderedza utsi hwekutsva.
• Zinc borate: Inosimudzira kuumbwa kwechar asi inoderedzwa (2 phr chete), ichitadza kugadzira char layer inokwana kudzvanyirira utsi.

1. Chinodiwa Chikuru:

• Deredza kupisa kwehutsi density kuburikidzakudzvinyirirwa kwehutsi hwakawedzerakanagas-phase dilution mechanisms.

II. Optimization Strategies

1. Gadzirisa Iripo Yekugadzirisa Ratios

• Aluminium hypophosphite: Wedzera ku18–20 pr(inowedzera condensed-phase flame retardancy; monitor flexibility).
• MCA: Wedzera ku6–8 pr(inosimudzira gasi-chikamu chiito; yakawandisa mari inogona kudzikisira kugadzirisa).
• Zinc borate: Wedzera ku3–4 pr(inosimbisa kuumbwa kwechar).

Muenzaniso Yakagadziriswa Magadzirirwo:

• Aluminium hypophosphite: 18 phr
• MCA: 7 pr
• Zinc borate: 4 phr

2. Kusuma High-Efficiency Suppressants

• Molybdenum mishonga(semuenzaniso, zinc molybdate kana ammonium molybdate):
• Basa: Inokonzeresa kuumbwa kwechar, ichigadzira dense chipingamupinyi kuvharira utsi.
• Dosage: 2–3 phr (inobatanidza ne zinc borate).
• Nanoclay (montmorillonite):
• Basa: Chipingamupinyi chemuviri kuderedza kuburitswa kwegasi rinopisa.
• Dosage: 3–5 phr (pamusoro-yakagadziridzwa kuitira kupararira).
• Silicone-based flame retardants:
• Basa: Inovandudza char mhando uye kudzvinyirira utsi.
• Dosage: 1–2 phr (inodzivirira kurasikirwa pachena).

3. Synergistic System Optimization

• Zinc borate: Wedzera 1–2 phr kuti ubatanidze nealuminium hypophosphite uye zinc borate.
• Ammonium polyphosphate (APP): Wedzera 1-2 phr kuti uwedzere gasi-chikamu chiito neMCA.

III. Recommended Comprehensive Formulation

Zvinotarisirwa Mibairo:

• Kupisa utsi density: ≤200 (kuburikidza nechar + gas-phase synergy).
• Afterglow utsi density: Chengetedza ≤200 (MCA + zinc borate).

IV. Key Process Optimization Notes

1. Processing Temperature: Chengetedza 180-200 ° C kudzivirira kupera kwemoto kusati kwasvika.
2. Kupararira:

• Shandisa high-speed mixing (≥2000 rpm) yeuniform nanoclay/molybdate distribution.
• Wedzera 0.5–1 phr silane coupling agent (semuenzaniso, KH550) kuvandudza kuenderana kwekuzadza.

1. Film Formation: Pakukandira, dzikisa kutonhora kufambisa kugadzirwa kwechar layer.

V. Matanho ekusimbisa

1. Lab Testing: Gadzirira sampuli pane yakakurudzirwa kuumbwa; itisa UL94 yakatwasuka kupisa uye utsi density bvunzo (ASTM E662).
2. Performance Balance: Edza kusimba kwesimba, kurebesa, uye pachena.
3. Iterative Optimization: Kana hutsi hwehutsi hukaramba hwakakwirira, gadzirisa zvakanyanya molybdate kana nanoclay (± 1 phr).

VI. Mutengo & Zvinogoneka

• Cost Impact: Zinc molybdate (~ ¥50 / kg) + nanoclay (~ ¥30 / kg) kuwedzera mari yose ne <15% pa ≤10% kutakura.
• Industrial Scalability: Inoenderana neyakajairwa TPU kugadzirisa; hapana midziyo inokosha inodiwa.

VII. Mhedziso

Bykuwedzera zinc borate + kuwedzera molybdate + nanoclay, hurongwa hwekuita katatu (char kugadzirwa + gasi dilution + chemuviri chipingamupinyi) inogona kuzadzisa chinangwa chekupisa utsi density (≤200). Isa mberi kuedzamolybdate + nanoclaymusanganiswa, wobva waita fine-tune mareshiyo ekudhura-kuita chiyero.