Nylon (Polyamide, PA) yog cov khoom siv hluav taws xob ua haujlwm siab uas siv dav hauv electronics, tsheb, textiles, thiab lwm yam. Vim nws flammability, nplaim retardant hloov kho ntawm nylon yog ib qho tseem ceeb phricularly. Hauv qab no yog cov ncauj lus kom ntxaws tsim thiab piav qhia ntawm cov nylon nplaim retardant formulations, npog ob qho tib si halogenated thiab halogen-dawb nplaim retardant daws.
1. Cov ntsiab lus ntawm Nylon Flame Retardant Formulation Design
Kev tsim cov nylon nplaim retardant formulations yuav tsum ua raws li cov hauv qab no:
- High nplaim taws Retardancy: Raws li UL 94 V-0 lossis V-2 tus qauv.
- Kev ua tau zoo: Cov nplaim hluav taws yuav tsum tsis txhob cuam tshuam rau nylon cov khoom ua haujlwm (xws li fluidity, thermal stability).
- Mechanical Properties: Qhov sib ntxiv ntawm cov nplaim hluav taws yuav tsum txo qis kev cuam tshuam ntawm nylon lub zog, toughness, thiab hnav tsis kam.
- Environmental Friendliness: Muab qhov tseem ceeb rau cov nplaim hluav taws tsis muaj halogen kom ua raws li cov cai ntawm ib puag ncig.
2. Halogenated Nplaim Retardant Nylon Formulation
Halogenated nplaim retardants (piv txwv li, brominated compounds) cuam tshuam combustion chain reactions los ntawm tso halogen radicals, muab cov nplaim hluav taws kub retardant efficiency.
Formulation muaj pes tsawg leeg:
- Nylon resin (PA6 lossis PA66): 100 phr
- Brominated nplaim retardant: 10-20 phr (piv txwv li, decabromodiphenyl ethane, brominated polystyrene)
- Antimony trioxide (synergist): 3-5 phr
- Lubricant: 1-2 phr (piv txwv li, calcium stearate)
- Antioxidant: 0.5-1 phr (piv txwv li, 1010 lossis 168)
Cov kauj ruam ua:
- Premix nylon resin, nplaim retardant, synergist, lubricant, thiab antioxidant uniformly.
- Melt-blend siv ib tug ntxaib-ntsia hlau extruder thiab pelletize.
- Tswj extrusion kub ntawm 240-280 ° C (kho raws li hom nylon).
Yam ntxwv:
- Qhov zoo: High nplaim retardant efficiency, tsawg additive nqi, nqi-zoo.
- Qhov tsis zoo: Muaj peev xwm tso tawm cov pa phem thaum lub sij hawm combustion, ib puag ncig kev txhawj xeeb.
3. Halogen-Free Flame Retardant Nylon Formulation
Halogen-dawb nplaim retardants (piv txwv li, phosphorus-based, nitrogen-based, los yog inorganic hydroxides) ua haujlwm los ntawm cov tshuaj tiv thaiv endothermic lossis txheej txheej tiv thaiv, muab kev ua haujlwm zoo ib puag ncig.
Formulation muaj pes tsawg leeg:
- Nylon resin (PA6 lossis PA66): 100 phr
- Phosphorus-raws li nplaim retardant: 10-15 phr (piv txwv li, ammonium polyphosphate APP los yog liab phosphorus)
- Nitrogen-based nplaim retardant: 5-10 phr (piv txwv li, melamine cyanurate MCA)
- Inorganic hydroxide: 20-30 phr (piv txwv li, magnesium hydroxide lossis aluminium hydroxide)
- Lubricant: 1-2 phr (xws li zinc stearate)
- Antioxidant: 0.5-1 phr (piv txwv li, 1010 lossis 168)
Cov kauj ruam ua:
- Premix nylon resin, nplaim retardant, lubricant, thiab antioxidant uniformly.
- Melt-blend siv ib tug ntxaib-ntsia hlau extruder thiab pelletize.
- Tswj extrusion kub ntawm 240-280 ° C (kho raws li hom nylon).
Yam ntxwv:
- Qhov zoo: Ib puag ncig tus phooj ywg, tsis muaj cov pa phem emissions, ua raws li cov cai.
- Qhov tsis zoo: Cov nplaim hluav taws xob qis qis dua, cov khoom siv ntau dua, muaj peev xwm cuam tshuam rau cov khoom siv kho tshuab.
4. Kev txiav txim siab tseem ceeb hauv kev tsim qauv
(1) Nplaim Retardant xaiv
- Halogenated nplaim retardants: High efficiency tab sis ua rau ib puag ncig thiab kev noj qab haus huv txaus ntshai.
- Halogen-dawb nplaim retardants: Eco-friendly tab sis xav tau ntau dua thiab tuaj yeem cuam tshuam cov khoom siv.
(2) Siv cov Synergists
- Antimony trioxide: Ua haujlwm sib koom ua ke nrog halogenated nplaim retardants los txhim kho cov nplaim hluav taws.
- Phosphorus-nitrogen synergy: Hauv cov tshuab tsis muaj halogen, phosphorus thiab nitrogen-based nplaim retardants tuaj yeem ua ke los txhim kho kev ua haujlwm.
(3) Dispersion thiab Processability
- Dispersants: Xyuas kom muaj kev sib cais ntawm cov nplaim hluav taws xob kom tsis txhob muaj qhov chaw siab.
- Lubricants: Txhim kho kev ua haujlwm fluidity thiab txo cov khoom hnav.
(4) Antioxidants
Tiv thaiv cov khoom degradation thaum ua thiab txhim kho cov khoom ruaj khov.
5. Cov ntawv thov ib txwm
- Electronics: Cov khoom siv hluav taws xob tsis zoo xws li cov khoom sib txuas, cov keyboards, thiab cov qhov (sockets).
- Automotive: Nplaim-retardant phr xws li lub cav npog, cov hlua khi, thiab cov khoom siv sab hauv.
- Textiles: Flame-retardant fibers thiab ntaub.
6. Formulation Optimization Recommendation
(1) Txhim kho Nplaim Retardant Efficiency
- nplaim retardant blending: Halogen-antimony lossis phosphorus-nitrogen synergies los txhim kho kev ua haujlwm.
- Nano nplaim retardants: Piv txwv li, nano magnesium hydroxide los yog nano av nplaum, txhim khu kev ua tau zoo thiab txo cov nqi ntxiv.
(2) Txhim kho Mechanical Properties
- Tougheners: Piv txwv li, POE lossis EPDM, txhawm rau txhim kho cov khoom toughness thiab cuam tshuam tsis kam.
- Txhawb nqa fillers: Piv txwv li, iav fiber ntau, los txhim kho lub zog thiab rigidity.
(3) Tus nqi txo
- Optimize nplaim retardant ratios: Txo siv tsawg thaum ua tau raws li qhov xav tau ntawm cov nplaim taws.
- Xaiv cov khoom siv nyiaj txiag zoo: Piv txwv li, domestic los yog blended nplaim retardants.
7. Ib puag ncig thiab kev tswj hwm
- Halogenated nplaim retardants: Txwv los ntawm RoHS, REACH, thiab lwm yam, yuav tsum tau ceev faj siv.
- Halogen-dawb nplaim retardants: Ua raws li cov cai, sawv cev rau yav tom ntej tiam sis.
Cov qauv tsim ntawm nylon nplaim taws retardant formulations yuav tsum xav txog tej yam kev thov scenarios thiab cov kev cai yuav tsum tau thaum xaiv halogenated los yog halogen-dawb nplaim retardants. Halogenated nplaim retardants muaj kev ua haujlwm siab tab sis ua rau muaj kev pheej hmoo ntawm ib puag ncig, thaum lwm txoj hauv kev tsis muaj halogen yog eco-phooj ywg tab sis xav tau ntau ntxiv. Los ntawm optimizing formulations thiab txheej txheem, npaum, ib puag ncig tus phooj ywg, thiab nqi-zoo nplaim-retardant nylon ntaub ntawv yuav tsim tau raws li cov kev xav tau ntawm electronics, automotive, textiles, thiab lwm yam lag luam.
More info., pls contact lucy@taifeng-fr.com
Post lub sij hawm: May-22-2025
