English

Akụkọ

Usoro ihe eji egbochi ire ọkụ maka SK Polyester ES500 (ọkwa UL94 V0).

Usoro ihe eji egbochi ire ọkụ maka SK Polyester ES500 (ọkwa UL94 V0).

I. Ụzọ Nhazi Nhazi

  1. Ndakọrịta nke ihe ndị dị n'okpuru ala
    • SK Polyester ES500: Polyester thermoplastic nke nwere okpomọkụ nhazi nkịtị nke 220–260°C. Ihe na-egbochi ire ọkụ ga-anagide oke okpomọkụ a.
    • Ihe Ndị Dị Mkpa: Nhazi nke ire ọkụ (V0), ihe ndị dị n'ime ya (ike nrụgide/mmetụta), na nhazi ya.
  2. Sistemụ Nkwụsị Ọkụ Synergistic
    • Ultrafine Aluminium Hydroxide (ATH): Ihe na-egbochi ire ọkụ bụ isi, mmiri mmiri na-agụ n'ime ahụ. Ibu ibu ga-edozi ihe na-egbochi ire ọkụ na ihe ndị dị n'ime ya.
    • Aluminom Hypophosphite: Ọ bụ onye na-emepụta ihe na-eme ka ihe dị iche iche dị ka Char-forming synergist, na-arụ ọrụ na ATH iji mepụta mmetụta phosphorus-aluminom synergistic, na-eme ka mma nke ihe dị iche iche dị mma.
    • Zinc Borate: Ihe na-eme ka ike dịkwuo mma, na-ebelata anwụrụ ọkụ, ma na-emepụta ihe mgbochi siri ike nke nwere ATH.
    • MCA (Melamine Cyanurate): Ihe na-egbochi ire ọkụ nke gas, na-ebelata ikuku oxygen ma na-egbochi mmiri ịgbaze.

II. Usoro akwadoro (Pasentị ibu)

Akụkụ Oke Nhazi Ihe Ndetu
SK Polyester ES500 45–50% Resin ntọala; họrọ ọkwa mmiri mmiri dị elu iji kwụọ ụgwọ maka viscosity nke ihe na-ejupụta.
Ultrafine ATH 25–30% Ejiri ihe njikọ silane (KH-550) gbanwee elu ya, D50 < 3 μm.
Aluminom Hypophosphite 10–12% Ọ naghị eguzogide okpomọkụ (>300°C), a na-agwakọta ya na ATH tupu oge eruo ma tinye ya na ọkwa dị iche iche.
Zinc Borate 6–8% Agbakwunyere ya na MCA iji zere mmebi nhazi dị elu.
MCA 4–5% Okpomọkụ usoro <250°C, mgbasa ọsọ dị ala.
Ihe na-agbasa ihe 2–3% Ihe na-ekesa ihe na-eme ka polyester dakọọ (dịka ọmụmaatụ, BYK-161) + ihe mejupụtara wax polyethylene.
Ihe Njiko Njikọta (KH-550) 1% A na-agwọ ATH na aluminom hypophosphite tupu oge eruo; a na-etinye ethanol n'ime mmiri wee kpọọ nkụ.
Ihe Mgbochi Mbelata Mmiri 0.5–1% Ngwakọta ntụ ntụ PTFE iji gbochie mgbanye agbaze.
Enyemaka Nhazi 0.5% Zinc stearate (mmanụ mmanụ na-egbochi ịrapara).

III. Njikwa Usoro Isi

  1. Nhazi Mgbasa Ozi
    • Ọgwụgwọ tupu oge eruo: Mikpuo ATH na aluminom hypophosphite n'ime mmiri ethanol nke 1% KH-550 ruo awa abụọ, wee kpọọ nkụ na okpomọkụ nke 80°C.
    • Usoro Ngwakọta:
      1. Resin ntọala + ihe na-agbasa + ihe na-ejikọ → Ngwakọta dị ala (500 rpm, nkeji 5).
      2. Tinye ATH/aluminum hypophosphite emezigharịrị → Mkpụcha ọsọ dị elu (2500 rpm, nkeji 20).
      3. Tinye zinc borate/MCA/PTFE → Ngwakọta dị obere ọsọ (800 rpm, nkeji 10).
    • Ngwa: Ihe eji eme ihe ...
  2. Njikwa Okpomọkụ Nhazi
    • Hụ na okpomọkụ agbazere na-erughị 250°C iji gbochie ire ere MCA (MCA na-ere ere na 250–300°C).
    • Mkpuru osisi oyi mmiri mgbe e si n'elu ya pụta iji gbochie mbugharị nke ihe na-egbochi ire ọkụ.

IV. Usoro Mmekọrịta Ọkụ Na-egbochi Ọkụ

  1. ATH + Aluminom Hypophosphite
    • ATH na-amịkọrọ okpomọkụ ma na-ewepụta uzuoku mmiri, na-agbaze gas ndị na-ere ọkụ.
    • Aluminom hypophosphite na-akpali mmepụta ike dị oke njọ (AlPO₄), na-egbochi nnyefe okpomọkụ.
  2. Zinc Borate + MCA
    • Zinc borate na-emepụta ihe mgbochi iko n'elu mgbawa ike.
    • MCA na-agbaze iji wepụta NH₃, na-ebelata ikuku oxygen ma na-egbochi mmeghachi omume free radicals.
  3. Mgbochi Mbelata PTFE
    • Ngwakọta ntụ ntụ PTFE na-emepụta netwọk eriri, na-ebelata ihe egwu nke mgbanye ọkụ na-agbaze.

V. Ịhazi na Ịchọpụta Nsogbu Arụmọrụ

Nsogbu A Na-ahụkarị Ngwọta
Nkwụsị ire ọkụ n'okpuru V0 (V1/V2) Mee ka aluminom hypophosphite dị elu ruo 12% + MCA ruo 5%, ma ọ bụ tinye 2% phosphorus uhie e tinyere n'ime ya (nke na-ejikọta ya na aluminom hypophosphite).
Mbelata njirimara igwe Belata ATH ruo 25%, tinye 5% eriri iko (mmesi ike) ma ọ bụ 3% maleic anhydride-grafted POE (touching).
Ọ naghị arụ ọrụ nke ọma Mee ka ihe na-agbasa ruo 3%, ma ọ bụ tinye wax polyethylene dị obere nke 0.5% (mmanụ mmanụ).
Ihu elu na-ama ifuru Mee ka ọnụọgụ ihe njikọta dịkwuo mma ma ọ bụ gbanwee gaa na ihe njikọta titanate (NDZ-201) maka njikọ ihu ka mma.

VI. Usoro Nnwale

  1. Ule UL94 V0:
    • Ihe nlele 1.6 mm na 3.2 mm, oge ọkụ zuru oke < sekọnd 50 mgbe ọkụ abụọ gasịrị, enweghị ọkụ na-adapụ.
  2. LOI: Ebumnuche ≥30% (n'ezie ≥28%).
  3. Njirimara Mechanical:
    • Ike nrụgide > 40 MPa, ike mmetụta > 5 kJ/m² (ọkọlọtọ ASTM).
  4. Nkwụsi Ike nke Okpomọkụ (TGA):
    • Ihe fọdụrụ n'ime cha na 800°C > 20%, okpomọkụ mbụ nke ire ere > 300°C.

VII. Usoro ntụaka ihe atụ

Akụkụ Ọdịnaya (%)
SK Polyester ES500 Pasentị iri anọ na asatọ
Ultrafine ATH (agbanwere) Pasentị iri abụọ na asatọ
Aluminom Hypophosphite 11%
Zinc Borate 7%
MCA 4%
Ihe na-ekesa BYK-161 2.5%
KH-550 Njikọta Onye nnọchite anya 1%
PTFE Anti-Tụfu Ihe Nnọchiteanya 0.8%
Stearate Zinc 0.5%

Nhazi na nhazi usoro a na-eme ka UL94 V0 ghara ire ọkụ nke ọma maka SK Polyester ES500 ma na-edozi ike nhazi na ihe onwunwe igwe. A na-atụ aro nnwale obere iji chọpụta mgbasa tupu nhazi nke ọma (dịka ọmụmaatụ, ịhazi hypophosphite aluminom na MCA). Maka mmezi nke ọzọ nke ire ọkụ, tụlee itinye 2% boron nitride nanosheets (BNNS) dị ka ihe na-eme ka okpomọkụ na-eduzi/na-egbochi ọkụ rụọ ọrụ abụọ.

More info., pls contact lucy@taifeng-fr.com

Oge ozi: Julaị-01-2025
Pịa "Enter" iji chọọ ma ọ bụ "ESC" iji mechie