Ntụgharị aka maka V-0 ire ọkụ na-adịgide adịgide PVC Thermoplastic Plastics

Ntụgharị aka maka V-0 ire ọkụ na-adịgide adịgide PVC Thermoplastic Plastics

Iji nweta ọkwa retardancy ire ọkụ V-0 (dị ka ụkpụrụ UL-94 si dị) na PVC thermoplastic plastik, aluminom hypophosphite na boric acid bụ ihe ọkụ ọkụ abụọ a na-ejikarị. Ọ dị mkpa ka emeziwanye ọkwa mgbakwunye ha dabere na usoro nhazi, ọnọdụ nhazi, yana ihe ndị chọrọ ịrụ ọrụ. N'okpuru bụ ụfọdụ ndụmọdụ na nsonye ntụaka:

1. Mgbakwunye Ọkwa nke Aluminom Hypophosphite

Aluminom hypophosphite bụ ihe na-egbochi ire ọkụ sitere na phosphorus dabara adaba maka ihe PVC. Ọ na-egbochi ọkụ ọkụ site na ịmepụta oyi akwa phosphate na-echebe ma na-ahapụ gas phosphoric acid.

• Ọkwa mgbakwunye akwadoro: 15–25 nkeji(akụkụ kwa otu narị akụkụ nke resin)
• Maka ọkọlọtọ PVC, na-agbakwunye gburugburu20 phrnke aluminom hypophosphite na-enwetakarị ọkwa ọkụ ọkụ V-0.
• Maka nkwụghachi ọkụ dị elu, enwere ike ịbawanye usoro onunu ogwu, mana enwere ike ịtụle mmetụta na akụrụngwa akụrụngwa.
• Akpachara anya:
• Aluminom hypophosphite karịrị akarị nwere ike ibelata arụmọrụ nhazi (dịka ọmụmaatụ, enweghị ike ịgbasa).
• A na-atụ aro ka ikpokọta ya na ihe ndị ọzọ na-ere ọkụ (dịka, boric acid, aluminum hydroxide) maka mmetụta synergistic.

2. Mgbakwunye Ọkwa nke Boric Acid

Boric acid bụ ihe na-egbochi ire ọkụ dị ọnụ ala nke na-arụ ọrụ bụ isi site na nrụrụ endothermic na nhazi nke oyi akwa mkpuchi dị ka iko.

• Ọkwa mgbakwunye akwadoro: 5–15 nkeji
• A na-ejikarị boric acid mee ihe dị ka ihe na-egbochi ọkụ nke abụọ, na oke oke nwere ike imebi ọrụ na nhazi.
• Na PVC, na-agbakwunye gburugburu10 phrnke boric acid nwere ike imekọrịta ya na aluminom hypophosphite iji kwalite ire ọkụ.
• Akpachara anya:
• Boric acid bụ hygroscopic, yabụ nchekwa na njikwa kwesịrị izere mmịpụta mmiri.
• Mmetụta ọkụ ya na-egbochi ọkụ na-ejedebe mgbe ejiri ya naanị ya; a na-ejikọta ya na ihe ndị ọzọ na-ere ọkụ (dịka, aluminom hypophosphite, aluminum hydroxide).

3. Mmekọrịta nke Aluminom Hypophosphite na Boric Acid

Iji nweta ọkwa V-0, aluminom hypophosphite na boric acid nwere ike jikọta maka mmetụta synergistic. N'okpuru bụ akwụkwọ ntụaka:

• Aluminom hypophosphite: 15–20 nkeji
• Boric acid: 5–10 nkeji
• Ihe mgbakwunye ndị ọzọ:
• Plasticizer (dịka, DOP): Dị ka achọrọ (gbanwere dabere na ihe siri ike PVC chọrọ)
• Stabilizer:2–5 nkeji(dịka ọmụmaatụ, nnu nnu, calcium-zinc stabilizers)
• mmanu mmanu:0,5–1 nkeji(dịka ọmụmaatụ, stearic acid)

Ụdị ihe atụ:

• PVC resin:100 phr
• Aluminom hypophosphite:18 pr
• Zinc borate:8 phr
• Plasticizer (DOP):40 phr
• Stabilizer:3 phr
• mmanu mmanu:0.8 nkp

4. Nnwale na njikarịcha

N'ime ngwa bara uru, a na-akwado usoro ndị a maka nnwale na njikarịcha:

1. Nhazi pilot:Kwadebe obere nnwale dabere na oke ntụaka.
2. Nnwale UL-94:Mee ule na-ere ọkụ kwụ ọtọ iji nyochaa ogo ire ere.
3. Nnwale arụmọrụ:Nyochaa ihe eji arụ ọrụ (dịka ọmụmaatụ, ike nkwụsị, ike mmetụta) yana ịrụ ọrụ nhazi (dịka ọmụmaatụ, ịgba ọsọ, nkwụsi ike ọkụ).
4. Nkwalite:Gbanwee ọkwa mgbakwunye nke aluminom hypophosphite na boric acid ma ọ bụ webata ihe ndị ọzọ na-ere ọkụ (dịka, aluminum hydroxide, antimony trioxide) iji kwalite arụmọrụ.

5. Ihe ndị dị mkpa

• Okpomọkụ nhazi:Okpomọkụ ire ere nke aluminom hypophosphite na boric acid dị oke elu; hụ na okpomọkụ nhazi agaghị agafe oke ndị a ka ịzenarị mmebi.
• MgbasaGbaa mbọ hụ na mgbasa nke ire ọkụ na-agba na PVC iji gbochie nsogbu ịcheta mpaghara.
• Mmetụta gburugburu:Ma aluminom hypophosphite na boric acid bụ ihe na-eme ka ọkụ na-eme enyi na enyi, mana enwere ike ịchọpụta ndakọrịta na mgbakwunye ndị ọzọ.

6. Nkwubi okwu

Iji nweta ọkwa nkwụghachi ọkụ ọkụ V-0 na plastik thermoplastic PVC, ọkwa mgbakwunye akwadoro bụ15–25 phr maka aluminom hypophosphitena5-15 phr maka boric acid. Iji mmekọ ọnụ nke ndị na-ere ọkụ ndị a nwere ike ịkwalite arụmọrụ. Na omume, njikarịcha dabere na usoro a kapịrị ọnụ yana ihe achọrọ ịrụ ọrụ dị mkpa, yana ekwesịrị ịme ule UL-94 iji chọpụta ọkwa nkwụghachi ọkụ.

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