Mafotokozedwe a Mapulasitiki a PVC a Thermoplastic a V-0 Osayaka Moto

Mafotokozedwe a Mapulasitiki a PVC a Thermoplastic a V-0 Osayaka Moto

Kuti mupeze chiŵerengero cha V-0 cha kuchedwa kwa moto (malinga ndi miyezo ya UL-94) mu mapulasitiki a PVC a thermoplastic, aluminiyamu hypophosphite ndi boric acid ndi zinthu ziwiri zomwe zimagwiritsidwa ntchito kwambiri poletsa moto. Miyeso yawo yowonjezera iyenera kukonzedwa kutengera kapangidwe kake, momwe imagwirira ntchito, komanso zofunikira pakugwira ntchito. Pansipa pali malangizo ndi mitundu yofotokozera:

1. Kuonjezera kwa Aluminium Hypophosphite

Aluminium hypophosphite ndi chida choletsa moto chochokera ku phosphorous choyenera kugwiritsidwa ntchito pazinthu za PVC. Chimaletsa kuyaka mwa kupanga gawo loteteza la phosphate ndikutulutsa mpweya wa phosphoric acid.

• Mulingo wowonjezera wovomerezeka: Magawo 15–25(zigawo pa magawo zana a utomoni)
• Pa PVC yokhazikika, kuwonjezera mozunguliraMa phr 20Kuchuluka kwa aluminiyamu hypophosphite nthawi zambiri kumakhala ndi V-0 flame retancy rating.
• Kuti moto uchepe kwambiri, mlingo wake ukhoza kuwonjezeredwa, koma mphamvu ya makina iyenera kuganiziridwa.
• Kusamalitsa:
• Kuchuluka kwa aluminiyamu hypophosphite kungayambitse kuchepa kwa magwiridwe antchito opangira zinthu (monga kulephera kuyenda bwino kwa madzi).
• Ndikoyenera kuphatikiza ndi zinthu zina zoletsa moto (monga boric acid, aluminium hydroxide) kuti zigwirizane bwino.

2. Kuonjezera Mlingo wa Boric Acid

Asidi ya boric ndi chinthu chotchipa choletsa moto chomwe chimagwira ntchito makamaka kudzera mu kuwonongeka kwa endothermic ndi kupanga gawo loteteza longa galasi.

• Mulingo wowonjezera wovomerezeka: Mavesi 5–15
• Boric acid nthawi zambiri imagwiritsidwa ntchito ngati choletsa moto chachiwiri, ndipo kuchuluka kwambiri kungawononge mphamvu zamakina ndi zopangira.
• Mu PVC, kuwonjezera mozunguliraMa phr 10ya boric acid ikhoza kugwirizana ndi aluminiyamu hypophosphite kuti iwonjezere kuchedwa kwa moto.
• Kusamalitsa:
• Asidi ya boric ndi yosalala, kotero kuisunga ndi kuisamalira kuyenera kupewa kuyamwa chinyezi.
• Mphamvu yake yoletsa moto imakhala yochepa ikagwiritsidwa ntchito yokha; nthawi zambiri imaphatikizidwa ndi zinthu zina zoletsa moto (monga aluminium hypophosphite, aluminium hydroxide).

3. Kupanga kwa Aluminium Hypophosphite ndi Boric Acid mogwirizana

Kuti mupeze V-0 rating, aluminiyamu hypophosphite ndi boric acid zitha kuphatikizidwa kuti zigwirizane. Pansipa pali njira yofotokozera:

• Hypophosphate ya aluminiyamu: Magawo 15–20
• Asidi ya Boric: Mavesi 5–10
• Zowonjezera zina:
• Chopangira pulasitiki (monga DOP): Ngati pakufunika (chosinthidwa kutengera zofunikira pa kuuma kwa PVC)
• Chokhazikika:Magawo 2–5(monga mchere wa lead, zolimbitsa calcium-zinc)
• Mafuta odzola:0.5–1 phr(monga stearic acid)

Chitsanzo cha kapangidwe kake:

• Utomoni wa PVC:Ma phr 100
• Hypophosphate ya aluminiyamu:Ma phr 18
• Zinc borate:Ma phr 8
• Chopangira pulasitiki (DOP):Ma phr 40
• Chokhazikika:Ma phr atatu
• Mafuta odzola:0.8 phr

4. Kuyesa ndi Kukonza

Mu ntchito zothandiza, njira zotsatirazi zikulangizidwa kuti muyesedwe ndikuwongolera:

1. Fomula yoyeserera:Konzani mayeso ang'onoang'ono kutengera mitundu yowunikira.
2. Mayeso a UL-94:Chitani mayeso oyaka moyimirira kuti muwone ngati moto uli wofooka.
3. Kuyesa magwiridwe antchito:Yesani mawonekedwe a makina (monga mphamvu yokoka, mphamvu yokoka) ndi momwe makina amagwirira ntchito (monga kuyenda bwino, kukhazikika kwa kutentha).
4. Kukonza bwino:Sinthani kuchuluka kwa aluminiyamu hypophosphite ndi boric acid kapena onjezerani zinthu zina zoletsa moto (monga aluminiyamu hydroxide, antimony trioxide) kuti muwonjezere magwiridwe antchito.

5. Mfundo Zofunika Kuziganizira

• Kutentha kokonza:Kutentha kwa aluminiyamu hypophosphite ndi boric acid komwe kumawola ndi kwakukulu; onetsetsani kuti kutentha kwa kukonza sikupitirira malire awa kuti mupewe kuwonongeka.
• Kubalalika:Onetsetsani kuti zinthu zoletsa moto zimafalikira mofanana mu PVC kuti mupewe mavuto a kuchuluka kwa moto m'malo osiyanasiyana.
• Zotsatira za chilengedwe:Aluminium hypophosphite ndi boric acid zonse ndi zinthu zoletsa moto zomwe sizimawononga chilengedwe, koma zimagwirizana ndi zowonjezera zina ziyenera kutsimikiziridwa.

6. Mapeto

Kuti mupeze chiŵerengero cha V-0 cha kuchedwa kwa moto mu mapulasitiki a PVC a thermoplastic, milingo yowonjezera yomwe ikulangizidwa ndi15–25 phr ya aluminiyamu hypophosphitendi5–15 phr ya asidi ya boricKugwiritsa ntchito zinthu zoletsa moto izi mogwirizana kungathandize kuti zinthu zizigwira bwino ntchito. M'malo mwake, kukonza zinthu kutengera njira zinazake komanso zofunikira pakugwira ntchito ndikofunikira, ndipo mayeso a UL-94 ayenera kuchitika kuti atsimikizire kuchuluka kwa zoletsa moto.

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