Nylon (Polyamide, PA) ndi pulasitiki yaukadaulo yochita bwino kwambiri yomwe imagwiritsidwa ntchito kwambiri mumagetsi, magalimoto, nsalu, ndi zina. Chifukwa cha kuyaka kwake, kusinthika kwa nayiloni koletsa moto ndikofunikira kwambiri. Pansipa pali kamangidwe kake komanso kafotokozedwe ka mawonekedwe a nayiloni obwezeretsanso malawi, okhudzana ndi mayankho a halogenated komanso opanda halogen.
1. Mfundo za Nayiloni Flame Retardant Formulation Design
Mapangidwe a nayiloni retardant flame formulations ayenera kutsatira mfundo izi:
- High Flame Retardancy: Kumanani ndi UL 94 V-0 kapena V-2 miyezo.
- Processing Magwiridwe: Zotsalira zamoto siziyenera kukhudza kwambiri ntchito ya nayiloni (mwachitsanzo, fluidity, kukhazikika kwamafuta).
- Mechanical Properties: Kuwonjezera kwa zoletsa moto kuyenera kuchepetsa mphamvu ya nayiloni, kulimba, ndi kukana kuvala.
- Ubwenzi Wachilengedwe: Ikani patsogolo zoletsa moto za halogen kuti zigwirizane ndi malamulo a chilengedwe.
2. Halogenated Flame Retardant Nayiloni Kupanga
Ma halogenated flame retardants (mwachitsanzo, brominated compounds) amasokoneza kuyaka kwa tcheni potulutsa ma halogen radicals, zomwe zimapatsa mphamvu yoletsa moto.
Kupanga Mapangidwe:
- Utomoni wa nayiloni (PA6 kapena PA66): 100 phr
- Brominated flame retardant: 10-20 phr (mwachitsanzo, decabromodiphenyl ethane, brominated polystyrene)
- Antimony trioxide (synergist): 3-5 phr
- Mafuta: 1-2 phr (mwachitsanzo, calcium stearate)
- Antioxidant: 0.5-1 phr (mwachitsanzo, 1010 kapena 168)
Njira Zopangira:
- Premix nylon resin, retardant flame, synergist, lubricant, ndi antioxidant uniform.
- Sungunulani-sakanizani pogwiritsa ntchito twin-screw extruder ndi pelletize.
- Sungani kutentha kwa extrusion pa 240-280 ° C (sinthani kutengera mtundu wa nayiloni).
Makhalidwe:
- Ubwino wake: Kugwiritsa ntchito bwino kwa moto woyaka, kutsika kwapang'onopang'ono, kutsika mtengo.
- Zoipa: Kutha kutulutsa mpweya wapoizoni panthawi yoyaka, zovuta zachilengedwe.
3. Mapangidwe A Nayiloni Opanda Moto wa Halogen
Zoletsa moto zopanda halogen (monga phosphorous-based, nitrogen-based, or inorganic hydroxides) zimagwira ntchito kudzera mu endothermic reaction kapena kupanga layer yoteteza, kumapereka magwiridwe antchito abwino a chilengedwe.
Kupanga Mapangidwe:
- Utomoni wa nayiloni (PA6 kapena PA66): 100 phr
- Phosphorus-based flame retardant: 10-15 phr (mwachitsanzo, ammonium polyphosphate APP kapena phosphorous wofiira)
- Nayitrogeni yochokera ku lawi retardant: 5-10 phr (mwachitsanzo, melamine cyanurate MCA)
- Inorganic hydroxide: 20-30 phr (mwachitsanzo, magnesium hydroxide kapena aluminiyamu hydroxide)
- Mafuta: 1-2 phr (mwachitsanzo, zinc stearate)
- Antioxidant: 0.5-1 phr (mwachitsanzo, 1010 kapena 168)
Njira Zopangira:
- Premix nylon resin, retardant flame, lubricant, and antioxidant uniform.
- Sungunulani-sakanizani pogwiritsa ntchito twin-screw extruder ndi pelletize.
- Sungani kutentha kwa extrusion pa 240-280 ° C (sinthani kutengera mtundu wa nayiloni).
Makhalidwe:
- Ubwino wake: Ndiokonda zachilengedwe, osatulutsa mpweya wapoizoni, wotsatira malamulo.
- Zoipa: Kuchepetsa mphamvu yamoto yochepetsa mphamvu, zowonjezera zowonjezera, zomwe zingakhudze makina amakina.
4. Mfundo zazikuluzikulu pakupanga mapangidwe
(1) Kusankha Koletsa Moto Wamoto
- Ma halogenated flame retardants: Kuchita bwino kwambiri koma kumawononga chilengedwe komanso thanzi.
- Zoletsa zamoto zopanda halogen: Eco-ochezeka koma imafuna ndalama zambiri ndipo ingakhudze magwiridwe antchito.
(2) Kugwiritsa Ntchito Ma Synergists
- Antimony trioxide: Imagwira ntchito mogwirizana ndi ma halogenated flame retardants kuti iwonjezere kuchedwa kwa lawi.
- Phosphorous-nitrogen synergy: Mu machitidwe opanda halogen, phosphorous ndi nayitrogeni-based retardants malawi amatha synergine kuti ntchito bwino.
(3) Kubalalitsidwa ndi Kusasinthika
- Obalalitsa: Onetsetsani kubalalitsidwa kofanana kwa zoletsa moto kuti mupewe kuchuluka kwambiri komwe kumakhala komweko.
- Mafuta: Sinthani processing fluidity ndi kuchepetsa zida kuvala.
(4) Antioxidants
Pewani kuwonongeka kwa zinthu panthawi yokonza ndikuwonjezera kukhazikika kwazinthu.
5. Zomwe Zimagwira Ntchito
- Zamagetsi: Zida zoletsa moto monga zolumikizira, zosinthira, ndi soketi.
- Zagalimoto: phr yoletsa moto monga zovundikira injini, ma waya, ndi zida zamkati.
- Zovala: Ulusi ndi nsalu zosagwira moto.
6. Malangizo Okonzekera Kukonzekera
(1) Kupititsa patsogolo Kuchita Bwino kwa Flame Retardant
- Kusanganikirana kwa flame retardant: Halogen-antimony kapena phosphorous-nitrogen synergies kuti apititse patsogolo ntchito.
- Nano flame retardants: Mwachitsanzo, nano magnesium hydroxide kapena dongo la nano, kuti muwonjezere mphamvu ndikuchepetsa zowonjezera.
(2) Kupititsa patsogolo Katundu Wamakina
- Tougheners: Mwachitsanzo, POE kapena EPDM, kupititsa patsogolo kulimba kwa zinthu komanso kukana mphamvu.
- Kuwonjezera fillers: Mwachitsanzo, galasi CHIKWANGWANI, kupititsa patsogolo mphamvu ndi kuuma.
(3) Kuchepetsa Mtengo
- Konzani ma retardant amoto: Chepetsani kugwiritsa ntchito mukakumana ndi zofunikira pakuwotcha moto.
- Sankhani zipangizo zotsika mtengo: Mwachitsanzo, zozimitsa moto zapakhomo kapena zosakanikirana.
7. Zofunikira Zachilengedwe ndi Zowongolera
- Ma halogenated flame retardants: Zoletsedwa ndi RoHS, REACH, ndi zina, zomwe zimafunikira kugwiritsa ntchito mosamala.
- Zoletsa zamoto zopanda halogen: Kugwirizana ndi malamulo, oyimira mtsogolo.
Mapangidwe a nayiloni retardant flame ayenera kuganizira zochitika zenizeni za kagwiritsidwe ntchito ndi malamulo oyenera posankha zoletsa moto za halojeni kapena zopanda halogen. Ma halogenated flame retardants amapereka mphamvu zambiri koma amawononga chilengedwe, pomwe njira zopanda halogen ndizothandiza zachilengedwe koma zimafunikira zowonjezera zowonjezera. Mwa kukhathamiritsa mapangidwe ndi njira, zida za nayiloni zogwira ntchito bwino, zokondera zachilengedwe, komanso zotsika mtengo zoletsa moto wamoto zimatha kupangidwa kuti zikwaniritse zofunikira zamagetsi, zamagalimoto, nsalu, ndi mafakitale ena.
More info., pls contact lucy@taifeng-fr.com
Nthawi yotumiza: May-22-2025
