Mapangidwe Othandizira a V-0 Flame-Retardant PVC Thermoplastic Plastics

Mapangidwe Othandizira a V-0 Flame-Retardant PVC Thermoplastic Plastics

Kuti mukwaniritse voteji ya V-0 (molingana ndi miyezo ya UL-94) mu mapulasitiki a PVC a thermoplastic, aluminium hypophosphite ndi boric acid ndi awiri omwe amagwiritsidwa ntchito kwambiri poletsa malawi. Magawo awo owonjezera akuyenera kukonzedwa motengera momwe amapangidwira, momwe amagwirira ntchito, komanso momwe amagwirira ntchito. M'munsimu muli ena omwe angakulimbikitseni ndi masanjidwe awo:

1. Mulingo Wowonjezera wa Aluminium Hypophosphite

Aluminiyamu hypophosphite ndi phosphorous-based retardant flame yothandiza bwino PVC zipangizo. Imalepheretsa kuyaka popanga wosanjikiza wa phosphate woteteza ndikutulutsa mpweya wa phosphoric acid.

• Mulingo wowonjezera wovomerezeka: 15-25 mphindi(gawo pa zana limodzi la utomoni)
• Kwa PVC yokhazikika, kuwonjezera kuzungulira20 pha aluminium hypophosphite nthawi zambiri amapeza V-0 flame retardancy rating.
• Kuti muchepetse kutentha kwa moto, mlingo ukhoza kuwonjezeredwa, koma zotsatira za makina amakina ziyenera kuganiziridwa.
• Kusamalitsa:
• Kuchuluka kwa aluminiyamu hypophosphite kumatha kuchepetsa ntchito yokonza (mwachitsanzo, kusayenda bwino).
• Ndi bwino kuphatikiza ndi ena retardants lawi (mwachitsanzo, asidi boric, zotayidwa hydroxide) kwa synergistic zotsatira.

2. Mlingo Wowonjezera wa Boric Acid

Boric acid ndi yotsika mtengo yochepetsera moto yomwe imagwira ntchito makamaka kupyolera mu kuwonongeka kwa endothermic ndi kupanga gawo lotetezera ngati galasi.

• Mulingo wowonjezera wovomerezeka: 5-15 mphindi
• Boric acid nthawi zambiri amagwiritsidwa ntchito ngati choletsa moto wachiwiri, ndipo kuchuluka kwambiri kumatha kuwononga makina ndi kukonza zinthu.
• Mu PVC, kuwonjezera kuzungulira10 phrBoric acid imatha kugwirizanitsa ndi aluminium hypophosphite kuti ipititse patsogolo kuchedwa kwamoto.
• Kusamalitsa:
• Boric acid ndi hygroscopic, kotero kusungidwa ndi kusamalira kuyenera kupewa kuyamwa kwa chinyezi.
• Mphamvu yake yoletsa moto imakhala yochepa ikagwiritsidwa ntchito yokha; nthawi zambiri amaphatikizidwa ndi zoletsa moto (mwachitsanzo, aluminium hypophosphite, aluminiyamu hydroxide).

3. Synergistic Kupanga kwa Aluminium Hypophosphite ndi Boric Acid

Kuti tikwaniritse mlingo wa V-0, aluminium hypophosphite ndi boric acid zitha kuphatikizidwa kuti zigwirizane. M'munsimu muli mawu ofotokozera:

• Aluminium hypophosphite: 15-20 mphindi
• Boric acid: 5-10 mphindi
• Zowonjezera zina:
• Pulasitiki (mwachitsanzo, DOP): Monga pakufunika (zosinthidwa kutengera kuuma kwa PVC)
• Stabilizer:2-5 mphindi(mwachitsanzo, mchere wamchere, calcium-zinc stabilizers)
• Mafuta:0.5-1 mphindi(mwachitsanzo, stearic acid)

Kupanga Zitsanzo:

• PVC utomoni:100 ph
• Aluminium hypophosphite:18 ph
• Zinc borate:8 phr
• Plasticizer (DOP):40 ph
• Stabilizer:3 phr
• Mafuta:0.8 mph

4. Kuyesa ndi Kukhathamiritsa

Muzogwiritsa ntchito, njira zotsatirazi zimalimbikitsidwa kuti ziyesedwe ndi kukhathamiritsa:

1. Kapangidwe ka woyendetsa:Konzekerani kuyesa pang'ono potengera magawo omwe amalozera.
2. Mayeso a UL-94:Chitani zoyesa zowotcha zoyima kuti muwunikire kuchedwa kwamoto.
3. Kuyesa magwiridwe antchito:Unikani mphamvu zamakina (mwachitsanzo, kulimba kwamphamvu, kulimba kwamphamvu) ndikuwongolera magwiridwe antchito (mwachitsanzo, kuyenda, kukhazikika kwamafuta).
4. Kukhathamiritsa:Sinthani milingo yowonjezera ya aluminium hypophosphite ndi boric acid kapena yambitsani zoletsa moto (monga aluminium hydroxide, antimony trioxide) kuti mupititse patsogolo magwiridwe antchito.

5. Mfundo zazikuluzikulu

• Kusintha kutentha:Kutentha kwa aluminium hypophosphite ndi boric acid ndizokwera kwambiri; onetsetsani kutentha kwa processing sikudutsa malirewa kuti mupewe kuwonongeka.
• Kubalalitsidwa:Onetsetsani kufalikira kofanana kwa zoletsa moto mu PVC kuti mupewe zovuta zamagulu.
• Zokhudza chilengedwe:Onse aluminium hypophosphite ndi boric acid ndi eco-friendly retardants lawi, koma zogwirizana ndi zina zowonjezera ziyenera kutsimikiziridwa.

6. Mapeto

Kuti mukwaniritse V-0 flame retardancy rating mu PVC thermoplastic plastics, milingo yowonjezeredwa yowonjezeredwa ndi15-25 phr kwa aluminium hypophosphitendi5-15 phr kwa boric acid. Kugwiritsiridwa ntchito molumikizana kwa zoletsa moto izi kumatha kukulitsa magwiridwe antchito. M'malo mwake, kukhathamiritsa kutengera kapangidwe kake ndi zofunikira pakugwira ntchito ndikofunikira, ndipo kuyezetsa kwa UL-94 kuyenera kuchitidwa kuti muwonetsetse kuchedwa kwamoto.

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