Flame retardant Aluminium Hypophosphite na MCA kuri EVA Ubushyuhe-Shrink Tubing

Flame retardant Aluminium Hypophosphite na MCA kuri EVA Ubushyuhe-Shrink Tubing

Iyo ukoresheje aluminium hypophosphite, MCA (melamine cyanurate), na hydroxide ya magnesium nka retardants ya flame muri EVA igabanya ubushyuhe, ibipimo byateganijwe hamwe nubuyobozi bwiza nibi bikurikira:

1. Basabwe Gukoresha Igipimo cya Flame Retardants

Aluminium Hypophosphite

• Umubare:5% –10%
• Igikorwa:Flame retardant ikora neza, iteza imbere char, kandi igabanya umuvuduko wo kurekura.
• Icyitonderwa:Umubare urenze urugero ushobora kubangamira ibintu byoroshye; abakozi ba synergiste bagomba gushyirwamo imbaraga.

MCA (Melamine Cyanurate)

• Umubare:10% –15%
• Igikorwa:Umuriro wa gaz-fase retardant, ukurura ubushyuhe kandi urekura imyuka ya inert (urugero, NH₃), igahuza na aluminium hypophosphite kugirango yongere umuriro.
• Icyitonderwa:Kurenza urugero birashobora gutera kwimuka; guhuza na EVA bigomba kwemezwa.

Magnesium Hydroxide (Mg (OH) ₂)

• Umubare:20% –30%
• Igikorwa:Kwangirika kwa Endothermic kurekura imyuka y'amazi, kugabanya imyuka yaka no guhagarika umwotsi.
• Icyitonderwa:Kuremerera cyane birashobora kugabanya imiterere yubukanishi; guhindura isura birasabwa kunoza ikwirakwizwa.

2. Ibyifuzo byo guhitamo neza

• Sisitemu Yuzuye Yumuriro:Ntigomba kurenza 50% kuringaniza flame idindance hamwe nibikorwa (urugero, guhinduka, kugabanuka).
• Ingaruka zo Guhuza:
• Aluminium hypophosphite na MCA birashobora kugabanya ibipimo bya buri muntu (urugero, 8% aluminium hypophosphite + 12% MCA).
• Hydroxide ya magnesium yuzuza umuriro mu ngaruka ziterwa na endothermic mugihe ugabanya umwotsi.
• Kuvura Ubuso:Ibikoresho byo guhuza Silane birashobora kongera itandukaniro no guhuza imiyoboro ya hydroxide ya magnesium.
• Inyongera z'abafasha:
• Ongeramo 2% –5% byimikorere ya char (urugero, pentaerythritol) kugirango utezimbere char layer.
• Shyiramo uduce duto twa plasitike (urugero, amavuta ya soya ya epoxiside) kugirango wishyure igihombo cyoroshye.

3. Amabwiriza yo Kwemeza Imikorere

• Kwipimisha Ikirimi cya Flame:
• Ikizamini cyo gutwika UL94 (intego: V-0).
• Kugabanya Indangantego ya Oxygene (LOI> 28%).
• Ibikoresho bya mashini:
• Suzuma imbaraga zingana no kurambura kuruhuka kugirango urebe neza ko byujuje ibisabwa.
• Ibikorwa:
• Gukurikirana Indangantego ya Melt Flow (MFI) kugirango wirinde ingorane zo gutunganya kubera kuzuza cyane.

4. Ibiciro hamwe nibitekerezo byibidukikije

• Amafaranga asigaye:Aluminium hypophosphite ihenze cyane; igipimo cyacyo kirashobora kugabanuka (kongerwaho na MCA) kugenzura ibiciro.
• Ibidukikije byangiza ibidukikije:Hydroxide ya magnesium ntabwo ari uburozi kandi irwanya umwotsi, bigatuma ikoreshwa mubidukikije byangiza ibidukikije.

Urugero rwerekana (kubisobanuro gusa):

• Aluminium Hypophosphite: 8%
• MCA: 12%
• Hydroxide ya Magnesium: 25%
• Matrix ya EVA: 50%
• Ibindi Byongeweho (ibikoresho byo guhuza, plasitike, nibindi): 5%