Polypropilene (PP) UL94 V0 na V2 Flame Retardant

Polypropilene (PP) UL94 V0 na V2 Flame Retardant

Polypropilene (PP) ni polymer ikoreshwa cyane, ariko gutwikwa kwayo kugabanya imikoreshereze yabyo mubice bimwe. Kugirango wuzuze ibisabwa bitandukanye byo gukumira flame (nka UL94 V0 na V2 amanota), retardants zirashobora gushyirwamo imbaraga kugirango zongere umuriro wa PP. Hano hepfo haribisobanuro birambuye kubyerekeranye na flame-retardant PP kumanota UL94 V0 na V2, harimo guhitamo flame retardant, gushushanya, gukora tekinike, no kugerageza imikorere.

1. Intangiriro kuri UL94 Ibipimo byo Kugarura Flame

UL94 ni igipimo cyaka umuriro cyakozwe na Laboratoire ya Underwriters (UL) kugirango isuzume ibirimi by'umuriro bya plastiki. Ibipimo bisanzwe byo gucana umuriro birimo:

• V0: Urwego rwohejuru rwa flame retardancy, bisaba ingero zo kuzimya mumasegonda 10 mugupima guhagaritse guhagaritse utiriwe utwika ipamba.
• V2: Icyiciro cyo hasi cya flame retardancy, cyemerera ingero zo kuzimya mumasegonda 30 mugupima guhagaritse mugihe wemereye gutonyanga bishobora gutwika ipamba.

2. V0 Flame-Retardant PP

V0 flame-retardant PP isaba kurwanya flame nziza cyane, mubisanzwe bigerwaho mugushyiramo imbaraga zidasanzwe za flame retardants no guhitamo neza.

2.1 Guhitamo Flame Retardant

• Bromated Flame Retardants: Nka decabromodiphenyl ether (DBDPO) na tetrabromobisphenol A (TBBPA), itanga umusaruro mwinshi ariko irashobora kutangiza ibidukikije.
• Fosifore ishingiye kuri Flame Retardants: Nka ammonium polyphosphate (APP) na fosifore itukura, byangiza ibidukikije kandi bifite akamaro.
• Intumecent Flame Retardants (IFR): Igizwe na acide, isoko ya karubone, nisoko ya gaze, itanga ibidukikije byangiza ibidukikije kandi bikora neza.
• Hydroxide ya Manyeziyumu (Mg (OH) ₂) cyangwa Hydroxide ya Aluminium (Al (OH) ₃): Ibidukikije byangiza ibidukikije bidafite ingufu, ariko birakenewe urwego rwo hejuru.

2.2

• PP Resin: 100phr (kuburemere, kimwe hepfo).
• Intumecent Flame Retardant (IFR): 20-30.
• Magnesium Hydroxide: 10–20phr.
• Umukozi urwanya ibiyobyabwenge: 0.5-1 interuro (urugero, polytetrafluoroethylene, PTFE).
• Amavuta: 0.5-1 interuro (urugero, zinc stearate).
• Antioxidant: 0.2–0.5 interuro.

2.3 Uburyo bwo gutunganya

• Kuvanga: Kuvanga icyarimwe PP resin, flame retardants, nibindi byongewe mumashanyarazi yihuta.
• Gukuramo & Pelletizing: Koresha impanga ebyiri kuri 180-220 ° C kugirango ubyare pellet.
• Gutera inshinge: Shushanya pellet mubigereranyo ukoresheje imashini itera inshinge.

2.4 Kwipimisha

• UL94 Ikizamini cyo gutwika: Ingero zigomba kuba zujuje ibisabwa V0 (kuzimya mu masegonda 10, nta gutwika ipamba bitonyanga).
• Ikizamini cya mashini: Suzuma imbaraga zingutu, imbaraga zingaruka, nibindi, kugirango urebe ko imikorere yibikoresho yujuje ibisabwa.

3. V2 Flame-Retardant PP Igishushanyo mbonera

V2 flame-retardant PP ifite ibyangombwa byo kurwanya flame kandi birashobora kugerwaho hamwe na flame retardant yikuramo.

3.1 Guhitamo Flame Retardant

• Bromated Flame Retardants: Nka DBDPO cyangwa TBBPA, bisaba amafaranga make kugirango ugere kuri V2.
• Fosifore ishingiye kuri Flame Retardants: Nka fosifore itukura cyangwa fosifeti, itanga ibisubizo byangiza ibidukikije.
• Hydroxide ya Manyeziyumu (Mg (OH) ₂) cyangwa Hydroxide ya Aluminium (Al (OH) ₃): Ibidukikije byangiza ibidukikije ariko bisaba imitwaro irenze.

3.2

• PP Resin: 100phr.
• Bromated Flame Retardant: 5-10.
• Antimony Trioxide (Sb₂O₃): 2–3phr (nkumuhuza).
• Umukozi urwanya ibiyobyabwenge: 0.5-1 interuro (urugero, PTFE).
• Amavuta: 0.5-1 interuro (urugero, zinc stearate).
• Antioxidant: 0.2–0.5 interuro.

3.3 Uburyo bwo gutunganya

• Kimwe na V0 yo gutunganya (kuvanga, gukuramo, gushushanya inshinge).

3.4 Kwipimisha

• UL94 Ikizamini cyo gutwika: Ingero zigomba kuba zujuje ibisabwa V2 (kuzimya mu masegonda 30, gutonyanga biremewe).
• Ikizamini cya mashini: Menya neza ko ibikorwa bifatika byujuje ibyifuzo.

4. Kugereranya Hagati ya V0 na V2

4.1 Kuzamura umuriro

• V0 isaba imitwaro ihanitse (urugero, 20-30phr IFR cyangwa 10–20phr Mg (OH) ₂).
• V2 isaba imitwaro yo hasi (urugero, 5-10phr bromated flame retardants).

4.2

• V0 itanga umuriro uruta iyindi ibisabwa bikenewe.

4.3 Ibikoresho bya mashini

• Imiterere ya V0 irashobora kugira ingaruka zikomeye kumiterere yubukanishi (urugero, imbaraga zingaruka, imbaraga zingana) bitewe nibindi byongeweho.
• V2 formulaire ntigira ingaruka nke kumikorere yubukanishi.

4.4 Ingaruka ku bidukikije

• V0 ikoreshwa kenshi ikoresha ibidukikije byangiza ibidukikije (urugero, IFR, Mg (OH) ₂).
• V2 irashobora gukoresha bromine flame retardants, itangiza ibidukikije.

5. Ibyifuzo byo guhitamo neza

5.1 Gukoresha Flame Retardant Synergism

• Gukomatanya ibintu bitandukanye bya flame retardants (urugero, IFR + Mg (OH) ₂, bromine + Sb₂O₃) birashobora kongera umuriro kandi bikagabanya imizigo.

5.2 Guhindura Ubuso

• Guhindura flame retardants (urugero, Mg (OH) ₂, Al (OH) ₃) bitezimbere guhuza na PP, byongera imiterere yubukanishi.

5.3

• Kugenzura ibipimo byo gukuramo / gutera inshinge (ubushyuhe, umuvuduko, umuvuduko wa screw) bituma habaho gutandukana kandi bikarinda kwangirika.

6. Umwanzuro

Igishushanyo cya V0 na V2 flame-retardant PP iterwa nibisabwa byihariye byo kurwanya flame hamwe nibisabwa.

• V0mubisanzwe ukoreshe cyane-flame retardants (urugero, IFR, Mg (OH) ₂) hamwe no guhuza imbaraga kugirango uhuze amahame akomeye.
• V2Irashobora kugera kumuriro wo hasi hamwe ninyongeramusaruro ntoya (urugero, flame retardants).

Mubikorwa bifatika, ibintu nko kurwanya flame, imikorere yubukanishi, ingaruka zidukikije, nigiciro bigomba kuringanizwa kugirango hongerwe uburyo bwo gutunganya no gutunganya.

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