Ngwọta usoro maka ibelata njupụta ihe nkiri TPU

Ngwọta usoro maka ibelata njupụta ihe nkiri TPU (Ugbu a: 280; Ebumnuche: <200)
(Nhazi ugbu a: Aluminom hypophosphite 15 phr, MCA 5 phr, Zinc borate 2 phr)

I. Isi Isi Analysis

1. Mmachi nke nhazi ugbu a:

• Aluminom hypophosphite: N'ụzọ bụ isi na-egbochi ire ọkụ na-agbasa mana ọ na-egbochi anwụrụ ọkụ.
• MCA: A gas-phase ire retardant dị irè maka afterglow (ama na-ezute ebumnuche) ma ezughi oke maka combustion anwụrụ ọkụ.
• Zinc borate: Na-akwalite nhazi cha cha mana anabataghị ya (naanị 2phr), na-agaghị etolite akwa akwa cha cha iji kwụsị anwụrụ ọkụ.

1. Ihe achọrọ:

• Belata njupụta anwụrụ ọkụ site nachar-eme ka anwụrụ ọkụ kwụsịma ọ bụusoro dilution gas-phase.

II. Atụmatụ kachasị mma

1. Gbanwee Ratios Formulation dị adị

• Aluminom hypophosphite: abawanye na18–20 nkeji(na-eme ka njigide ire ọkụ na-agbachi agbakọ; nyochaa mgbanwe).
• MCA: abawanye na6–8 nkeji(na-akwalite ọrụ nke usoro gas; oke ego nwere ike imebi nhazi).
• Zinc borate: abawanye na3–4 nkeji(na-eme ka nhazi cha cha sie ike).

Ọmụmaatụ emeziri:

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

2. Webata ihe mgbochi anwụrụ ọkụ na-arụ ọrụ nke ọma

• Molybdenum ogige(dịka ọmụmaatụ, zinc molybdate ma ọ bụ ammonium molybdate):
• Ọrụ: Na-eme ka e guzobe cha cha, na-emepụta ihe mgbochi siri ike igbochi anwụrụ ọkụ.
• Usoro onunu ogwu: 2-3 phr (na-ejikọta ya na zinc borate).
• Nanoclay (montmorillonite):
• Ọrụ: Ihe mgbochi anụ ahụ iji belata ntọhapụ gas na-ere ọkụ.
• Usoro onunu ogwu: 3–5 phr (elu-gbanwere maka mgbasa).
• Ihe na-egbochi ire ọkụ dabere na silicon:
• Ọrụ: Na-eme ka ogo cha cha na nkwụsị anwụrụ ọkụ.
• Usoro onunu ogwu: 1–2 phr (na-ezere mfu nghọta).

3. Mmekọahụ sistemu mmekọrịta

• Zinc borate: Tinye 1–2 phr iji mekọrịta na aluminom hypophosphite na zinc borate.
• Ammonium polyphosphate (APP): Tinye 1–2 phr ka iwelie ọrụ usoro gas na MCA.

III. Nhazi zuru oke akwadoro

Nsonaazụ ndị a tụrụ anya ya:

• Njupụta anwụrụ ọkụ: ≤200 (site na char + gas-phase synergy).
• Njupụta anwụrụ ọkụ na-egbuke egbuke: Na-edebe ≤200 (MCA + zinc borate).

IV. Ndetu njikarịcha usoro

1. Nhazi okpomọkụ: Na-edebe 180-200C iji gbochie ire ere ọkụ na-akaghị aka.
2. Mgbasa:

• Jiri ngwakọta ọsọ ọsọ (≥2000 rpm) maka nkesa nanoclay/molybdate edo.
• Tinye 0.5–1 phr silane njikọ njikọ (dịka, KH550) iji kwalite ndakọrịta njuputa.

1. Nhazi ihe nkiri: Maka nkedo, wedata ọnụego jụrụ oyi iji kwado nguzobe cha cha.

V. Usoro nkwado

1. Nnwale ụlọ nyocha: Kwadebe samples kwa usoro akwadoro; mee UL94 vetikal ọkụ na njupụta anwụrụ ọkụ (ASTM E662).
2. Ntụle arụmọrụNwalee ike tensile, elongation, na nghọta.
3. Nkwalite ngwa ngwa: Ọ bụrụ na njupụta anwụrụ ọkụ ka dị elu, gbanwee molybdate ma ọ bụ nanoclay (± 1 phr).

VI. Ọnụ & Ohere

• Mmetụta ọnụ ahịa: Zinc molybdate (~¥50/kg) + nanoclay (~¥30/kg) na-abawanye ọnụ ahịa mkpokọta site na <15% na ≤10% nbudata.
• Mmụba ụlọ ọrụ: Dakọtara na nhazi TPU ọkọlọtọ; enweghị akụrụngwa pụrụ iche achọrọ.

VII. Mmechi

Site nana-abawanye zinc borate + na-agbakwunye molybdate + nanoclay, usoro ihe omume atọ (nhazi cha cha + dilution gas + mgbochi anụ ahụ) nwere ike nweta njupụta anwụrụ ọkụ combustion (≤200). Mee ka nnwale nke ahụ ụzọmolybdate + nanoclayNchikota, emesia mezie oke-nkwakọba maka itule ọnụ ahịa-arụmọrụ.