Polypropylene (PP) UL94 V0 na V2 Ọkụ Retardant Formulations

Polypropylene (PP) UL94 V0 na V2 Ọkụ Retardant Formulations

Polypropylene (PP) bụ polymer thermoplastic a na-ejikarị eme ihe, mana ọkụ ya na-egbochi ngwa ya na mpaghara ụfọdụ. Iji zute ihe dị iche iche chọrọ nkwụghachi ọkụ (dị ka akara ule UL94 V0 na V2), enwere ike itinye ọkụ na-ere ọkụ iji kwalite nguzogide ọkụ nke PP. N'okpuru ebe a bụ nkọwapụta nkọwapụta nke usoro PP na-egbochi ire ọkụ maka akara UL94 V0 na V2, gụnyere nhọrọ retardant ọkụ, imewe nhazi, usoro nhazi, na nnwale arụmọrụ.

1. Okwu Mmalite na UL94 ọkụ retardancy Ratings

UL94 bụ ọkọlọtọ flammability mepụtara site na Underwriters Laboratories (UL) iji nyochaa nguzogide ire ọkụ nke ihe rọba. Ntụle ọgbaghara ọkụ na-adịkarị gụnyere:

• V0: Nke kacha elu ọkụ retardancy ọkwa, na-achọ samples na-emenyụ onwe n'ime 10 sekọnd na a vetikal ọkụ ule na-enweghị ọkụ owu na ntapu.
• V2: A obere ọkụ retardancy ọkwa, na-ekwe ka samples na-emenyụ onwe ya n'ime 30 sekọnd n'ime a vetikal ọkụ ule mgbe ikwe ntapu nke nwere ike igbanye owu.

2. V0 Ọkụ na-egbochi PP nhazi

V0 na-egbochi ire ọkụ PP chọrọ ezigbo nguzogide ire ọkụ, nke a na-enwetakarị site na itinye ihe nkwụghachi ọkụ na-arụ ọrụ dị elu yana ịkwalite nhazi ahụ.

2.1 Nhọrọ ire ere

• Brominated Flame Retardants: Dị ka decabromodiphenyl ether (DDPO) na tetrabromobisphenol A (TBBPA), nke na-enye arụmọrụ dị elu mana ọ nwere ike ịbụ obere enyi na gburugburu ebe obibi.
• Ihe na-egbochi ọkụ dabere na phosphorus: Dị ka ammonium polyphosphate (APP) na red phosphorus, bụ ndị ọzọ eco-enyi na enyi na irè.
• Ọkụ na-agbapụta ọkụ (IFR): Gụnyere isi iyi acid, isi iyi carbon, na isi iyi gas, na-enye nkwado ọkụ na-adị mma na nke ọma.
• Magnesium Hydroxide (Mg (OH)₂) ma ọ bụ Aluminom Hydroxide (Al (OH) ₃): Eco-friendly inorganic ire ọkụ retardants, ma elu loading larịị a chọrọ.

2.2 Ụdị Ụdị

• PP resin: 100phr (n'ịdị arọ, otu n'okpuru).
• Ọkụ na-adịgide adịgide (IFR): 20-30 p.m.
• Magnesium Hydroxide: 10-20 p.m.
• Ihe mgbochi mgbochi mmiri: 0.5–1 phr (dịka ọmụmaatụ, polytetrafluoroethylene, PTFE).
• Mmanu mmanu: 0.5–1 phr (dịka ọmụmaatụ, zinc stearate).
• Antioxidant: 0.2–0.5 elekere.

2.3 Usoro nhazi

• Ngwakọta: Na-agwakọta resin PP n'otu n'otu, ọkụ retardants na ihe mgbakwunye ndị ọzọ na igwekota ngwa ngwa.
• Extrusion & Pelletizing: Jiri ejima-skru extruder na 180-220C iji mepụta pellets.
• Ịkpụzi injection: Kpoo pellet ndị ahụ ka ha bụrụ ụdị nnwale site na iji igwe na-akpụzi injection.

2.4 Nnwale arụmọrụ

• Nnwale ọkụ kwụ ọtọ UL94: Sample ga-egbo mkpa V0 (onwe-enyụpụ n'ime 10 sekọnd, ọ dịghị owu mgbanye si drips).
• Nlele arịa igwe: Nyochaa ike nkwụsịtụ, ike mmetụta, wdg, iji hụ na arụmọrụ ihe na-emezu ihe ngwa ngwa.

3. V2 Ọkụ-Retardant PP Formulation Design

V2 ire-ere ọkụ PP nwere obere ihe nguzogide ire ọkụ ma enwere ike nweta ya site na ntinye ọkụ na-adịgide adịgide.

3.1 Nhọrọ ire ere

• Brominated Flame Retardants: Dị ka DBDPO ma ọ bụ TBBPA, chọrọ naanị obere ego iji nweta V2.
• Ihe na-egbochi ọkụ dabere na phosphorus: Dị ka red phosphorus ma ọ bụ phosphates, na-enye eco-enyi na enyi ngwọta.
• Magnesium Hydroxide (Mg (OH)₂) ma ọ bụ Aluminom Hydroxide (Al (OH) ₃): Eco-enyi na enyi mana chọrọ ibunye elu.

3.2 Ụdị Ụdị

• PP resin: 100phr.
• Brominated Flame Retardant: 5–10 elekere.
• Antimony Trioxide (Sb₂O₃): 2–3phr (dịka onye mmekọ).
• Ihe mgbochi mgbochi mmiri: 0.5–1 phr (dịka ọmụmaatụ, PTFE).
• Mmanu mmanu: 0.5–1 phr (dịka ọmụmaatụ, zinc stearate).
• Antioxidant: 0.2–0.5 elekere.

3.3 Usoro nhazi

• Otu dị ka V0-ọkwa nhazi (ịgwakọta, extrusion, injection ịkpụzi).

3.4 Nlele arụmọrụ

• Nnwale ọkụ kwụ ọtọ UL94: Sample ga-egbo mkpa V2 (onwe-enyụpụ n'ime 30 sekọnd, dripping kwere).
• Nlele arịa igwe: Gbaa mbọ hụ na arụmọrụ ihe na-egbo mkpa ngwa.

4. Ntụnyere n'etiti V0 na V2 Formulations

4.1 Na-ebufe ire ọkụ

• V0 chọrọ ntinye dị elu (dịka ọmụmaatụ, 20–30phr IFR ma ọ bụ 10–20phr Mg(OH)₂).
• V2 chọrọ obere loading (dịka ọmụmaatụ, 5–10phr brominated ire ere).

4.2 arụmọrụ ire ere

• V0 na-enye nguzogide ọkụ dị elu maka ihe ndị siri ike chọrọ.

4.3 Ihe eji arụ ọrụ

• Usoro V0 nwere ike imetụta akụrụngwa akụrụngwa (dịka ọmụmaatụ, ike mmetụta, ike tensile) n'ihi ọdịnaya mgbakwunye dị elu.
• Ụdị V2 enwechaghị mmetụta na arụ ọrụ igwe.

4.4 Mmetụta gburugburu

• Usoro V0 na-ejikarị ihe nchekwa ọkụ na-eme enyi (dịka ọmụmaatụ, IFR, Mg(OH)₂).
• Ụdị V2 nwere ike iji brominated ire retardants, nke na-adịchaghị mma gburugburu ebe obibi.

5. Ntụnye nkwalite nhazi nhazi

5.1 Mmekọrịta ire ere

• Ijikọta ụdị ire ọkụ dị iche iche (dịka, IFR + Mg(OH)₂, brominated + Sb₂O₃) nwere ike ịkwalite ire ọkụ ma belata ibu.

5.2 Mgbanwe n'elu

• Ịgbanwe ihe ndị na-ere ọkụ inorganic (dịka, Mg(OH)₂, Al(OH)₃) na-eme ka ndakọrịta na PP dịkwuo mma, na-eme ka ihe ndị na-arụ ọrụ na-arụ ọrụ.

5.3 Nhazi kacha mma

• Ịchịkwa extrusion/injection paramita (okpomọkụ, nrụgide, ịghasa ọsọ) na-eme ka a na-agbasasị otu ma na-egbochi mmebi.

6. Nkwubi okwu

Nhazi nke usoro V0 na V2 ire ọkụ na-egbochi PP dabere na ihe ndị chọrọ nguzogide ire ọkụ na ihe ndapụta ngwa.

• Usoro V0na-ejikarị ihe nkwụghachi ọkụ na-arụ ọrụ nke ọma (dịka ọmụmaatụ, IFR, Mg(OH)₂) yana mmekọrịta kachasị mma iji zute ụkpụrụ siri ike.
• V2 usoronwere ike nweta ntachi obi ire ọkụ site na iji mgbakwunye ntakịrị (dịka ọmụmaatụ, ihe na-egbochi ire ọkụ).

N'ime ngwa bara uru, ihe ndị dị ka nkwụsị ọkụ, ịrụ ọrụ igwe, mmetụta gburugburu ebe obibi, na ọnụ ahịa ga-edozirịrị iji kwalite usoro na usoro nhazi.

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