Nylon (Polyamide, PA) ipurasitiki yeinjiniya yepamusoro inoshandiswa zvakanyanya mumagetsi, mota, machira, nemamwe minda. Nekuda kwekupisa kwayo, murazvo unodzoreredza shanduko yenylon yakakosha zvakanyanya. Pazasi pane yakadzama dhizaini uye tsananguro yenylon flame retardant formulations, inovhara zvese halogenated uye halogen-isina murazvo retardant mhinduro.
1. Nheyo dzeNylon Flame Retardant Formulation Design
Dhizaini yenylon flame retardant formulations inofanirwa kutevedzera zvinotevera misimboti:
- High Flame Retardancy: Sangana neUL 94 V-0 kana V-2 zviyero.
- Processing Performance: Zvidzitiro zvemoto hazvifanirwe kukanganisa zvakanyanya nylon's processing properties (semuenzaniso, fluidity, thermal stability).
- Mechanical Properties: Kuwedzerwa kwezvinodzoreredza murazvo kunofanirwa kudzikisira kukanganisa kusimba kwenylon, kusimba, uye kuramba kupfeka.
- Ushamwari Hwakatipoteredza: Isa pamberi pehalogen-isina murazvo retardants kutevedzera mirairo yezvakatipoteredza.
2. Halogenated Flame Retardant Nylon Formulation
Halogenated flame retardants (semuenzaniso, brominated compounds) inovhiringa mabatiro ekupisa nekuburitsa halogen radicals, ichipa yakanyanya kudzosa moto.
Kuumbwa Kwekugadzira:
- Nylon resin (PA6 kana PA66): 100 phr
- Brominated flame retardant: 10–20 phr (semuenzaniso, decabromodiphenyl ethane, brominated polystyrene)
- Antimony trioxide (synergist): 3-5 phr
- Lubricant: 1-2 phr (semuenzaniso, calcium stearate)
- Antioxidant: 0.5–1 phr (semuenzaniso, 1010 kana 168)
Matanho ekugadzirisa:
- Premix nylon resin, flame retardant, synergist, lubricant, uye antioxidant zvakafanana.
- Melt-blend uchishandisa twin-screw extruder uye pelletize.
- Dzora tembiricha yekupisa pa240-280 ° C (gadzirisa zvinoenderana nerudzi rwenaironi).
Hunhu:
- Zvakanakira: High flame retardant performance, yakaderera yekuwedzera mari, inodhura-inoshanda.
- Zvakaipa: Inogona kuburitswa kwemagasi ane muchetura panguva yekupisa, kunetseka kwezvakatipoteredza.
3. Halogen-Isina Flame Retardant Nylon Formulation
Halogen-isina murazvo retardants (semuenzaniso, phosphorus-based, nitrogen-based, kana inorganic hydroxides) inoshanda kuburikidza ne endothermic reactions kana inodzivirira layer kugadzirwa, inopa kuita zvirinani kwezvakatipoteredza.
Kuumbwa Kwekugadzira:
- Nylon resin (PA6 kana PA66): 100 phr
- Phosphorus-based flame retardant: 10-15 phr (semuenzaniso, ammonium polyphosphate APP kana tsvuku phosphorus)
- Nitrogen-based flame retardant: 5-10 phr (semuenzaniso, melamine cyanurate MCA)
- Inorganic hydroxide: 20-30 phr (semuenzaniso, magnesium hydroxide kana aluminium hydroxide)
- Lubricant: 1-2 phr (semuenzaniso, zinc stearate)
- Antioxidant: 0.5–1 phr (semuenzaniso, 1010 kana 168)
Matanho ekugadzirisa:
- Premix nylon resin, flame retardant, lubricant, uye antioxidant zvakafanana.
- Melt-blend uchishandisa twin-screw extruder uye pelletize.
- Dzora tembiricha yekupisa pa240-280 ° C (gadzirisa zvinoenderana nerudzi rwenaironi).
Hunhu:
- Zvakanakira: Yakabatana nemhoteredzo, hapana gasi rine muchetura rinobuda, rinoenderana nemirairo.
- Zvakaipa: Kudzika kwemoto kudzoreredza kunyatsoita, huwandu hwekuwedzera hwekuwedzera, hunogona kukanganisa pamichina zvivakwa.
4. Mafungiro Akakosha Mukugadzira Dhizaini
(1) Flame Retardant Selection
- Halogenated flame retardants: Kunyanya kushanda zvakanaka asi kunoisa njodzi kwezvakatipoteredza uye hutano.
- Halogen-isina murazvo retardants: Eco-inoshamwaridzika asi inoda huwandu hwakakura uye inogona kukanganisa kuita kwezvinhu.
(2) Kushandiswa kweSynergists
- Antimony trioxide: Inoshanda synergistically nehalogenated flame retardants kuwedzera kunonoka kwemurazvo.
- Phosphorus-nitrogen synergy: Mune halogen-isina masisitimu, phosphorus uye nitrogen-yakavakirwa murazvo retardants inogona kuwiriranisa kuvandudza kushanda zvakanaka.
(3) Kupararira uye Processability
- Dispersants: Iva nechokwadi chekupararira kweyunifomu yezvinodzosa moto kudzivirira nzvimbo dzakakwirira.
- Mafuta ekuzora: Kuvandudza kugadzirisa fluidity uye kuderedza kupfeka kwemidziyo.
(4) Antioxidants
Dzivirira kuparara kwezvinhu panguva yekugadzirisa uye kuwedzera kugadzikana kwechigadzirwa.
5. Typical Applications
- Electronics: Zvikamu zvinodzoreredza moto senge zvinobatanidza, switch, uye zvigadziko.
- Automotive: Flame-retardant phr senge injini inovhara, wiring harnesses, uye zvemukati zvikamu.
- Textiles: Fibers uye machira anodzoreredza moto.
6. Kugadziriswa Kwekugadzirisa Mazano
(1) Kuvandudza Flame Retardant Kubudirira
- Kusanganiswa kwemoto retardant: Halogen-antimony kana phosphorus-nitrogen synergies kuvandudza kushanda.
- Nano flame retardants: Eg, nano magnesium hydroxide kana nano ivhu, kuwedzera kushanda zvakanaka uye kuderedza ekuwedzera huwandu.
(2) Kuvandudza Mechanical Properties
- Tougheners: Eg, POE kana EPDM, kuwedzera kuoma kwezvinhu uye kukanganisa kuramba.
- Kusimbisa fillers: Eg, girazi faibha, kuvandudza simba uye rigidity.
(3) Kuderedza Mutengo
- Gadzirisa mirazvo inodzosa moto: Deredza kushandiswa paunenge uchisangana nemurazvo wekudzoreredza zvinodiwa.
- Sarudza zvinhu zvisingadhuri: Eg, zvemumba kana zvakasanganiswa zvinodzoreredza moto.
7. Zvakatipoteredza uye Regulatory Zvinodiwa
- Halogenated flame retardants: Yakarambidzwa neRoHS, REACH, nezvimwewo, inoda kushandiswa kwekuchenjerera.
- Halogen-isina murazvo retardants: Inopindirana nemirairo, inomiririra mafambiro emangwana.
Magadzirirwo enylon flame retardant formulations anofanirwa kufunga nezve chaiwo mashandisirwo emamiriro ezvinhu uye zvinodikanwa zvekutonga kana uchisarudza halogenated kana halogen-isina murazvo retardants. Halogenated flame retardants inopa kushanda kwepamusoro asi inoisa njodzi kwezvakatipoteredza, nepo halogen-yemahara dzimwe nzira dziri eco-hushamwari asi dzinoda hombe dzekuwedzera. Nekugadzirisa magadzirirwo nemagadzirirwo, anoshanda, ane hushamwari kwezvakatipoteredza, uye anodhura-mumoto-anodzoreredza naironi zvinhu zvinogona kuvandudzwa kuti zvizadzise zvinodiwa zvemagetsi, mota, machira, uye mamwe maindasitiri.
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Nguva yekutumira: May-22-2025
