Unganciphisa kanjani ukuminyana kwentuthu ye-epoxy adhesive nge-flame retardant AHP ne-MCA?

Ukwengezwa kwe-aluminium hypophosphite ne-MCA ekunamathiseleni kwe-epoxy kuphumela ekukhishweni kwentuthu ephezulu. Ukusebenzisa i-zinc borate ukunciphisa ukuminyana kwentuthu kanye nokukhipha intuthu kungenzeka, kodwa ukwakheka okukhona kudinga ukuthuthukiswa ngokwesilinganiso.

1. I-Smoke Suppression Mechanism yeZinc Borate

I-Zinc borate iyisivikeli sentuthu esisebenzayo kanye ne-synergist ebambezela ilangabi. Izindlela zayo zihlanganisa:

• Ukukhuthazwa Kokwakhiwa Kwe-Char: Yakha ungqimba oluminyene lwe-char ngesikhathi sokusha, ihlukanisa umoya-mpilo nokushisa, futhi yehlise ukukhishwa kwegesi evuthayo.
• Ukuvimbela Intuthu: Icubungula ukusabela okuhlanganayo ukuze kuncishiswe ukukhiqizwa kwezinhlayiya zentuthu, yehlise ukuminyana kwentuthu (isebenza kahle kakhulu kuma-polymers afana ne-epoxy).
• Umphumela we-Synergistic: Ithuthukisa ukulibaziseka komlilo uma ihlanganiswa ne-phosphorus-based (isb, i-aluminium hypophosphite) kanye ne-nitrogen-based (isb., i-MCA) ebuyisela amalangabi.

2. Okunye noma Izithasiselo Zokucindezela Intuthu

Ukuze uthole okwengeziwe ngokucindezelwa kwentuthu, cabangela izixazululo ezilandelayo ze-synergistic:

• I-Molybdenum Compounds(isb., i-zinc molybdate, i-molybdenum trioxide): Isebenza kangcono kune-zinc borate kodwa ibiza kakhulu; kunconywa ukuthi kuhlanganiswe ne-zinc borate (isb, i-zinc borate : i-zinc molybdate = 2:1).
• I-Aluminium/Magnesium Hydroxide: Idinga ukulayishwa okuphezulu (20-40 phr), okungase kuthinte izakhiwo zemishini ye-epoxy—lungisa ngokucophelela.

3. Ukulungiswa Okunconyiwe Kokwakhiwa

Kucatshangwa ukuthi ukwakhiwa kwangempelai-aluminium hypophosphite + MCA, nazi izikhombisi-ndlela (ezisekelwe ezingxenyeni eziyi-100 ze-epoxy resin):

Inketho 1: Ukwengezwa Okuqondile kwe-Zinc Borate

• I-Aluminium hypophosphite: Yehlisa ukusuka ku-20-30 phr ukuya15-25 phr
• I-MCA: Yehlisa ukusuka ku-10-15 phr ukuya8-12 phr
• I-Zinc borate: Engeza5-15 phr(qala ukuhlola ngo-10 phr)
• Isamba sokuqukethwe kwe-flame retardant: Gcina ku30-40 phr(gwema amanani eqile athinta ukusebenza kokunamathela).

Inketho 2: Zinc Borate + Zinc Molybdate Synergy

• I-Aluminium hypophosphite:15-20 phr
• I-MCA:5-10 phr
• I-Zinc borate:8-12 phr
• I-Zinc molybdate:4-6 imiz
• Isamba sokuqukethwe kwe-flame retardant:30-35 ph.

4. Amamethrikhi Abalulekile Wokuqinisekisa

• I-Flame Retadancy: UL-94 ukushiswa okuqondile, ukuhlolwa kwe-LOI (okuhlosiwe: V-0 noma i-LOI>30%).
• Ukuminyana Kwentuthu: Sebenzisa isihloli sokuminyana kwentuthu (isb., igumbi lentuthu le-NBS) ukuze uqhathanise ukuncishiswa Kwesilinganiso Sokuminyana Kwentuthu (SDR).
• Izakhiwo Zemishini: Qinisekisa ukuthi amandla okuqina namandla okunamathela ahlangabezana nezidingo ngemuva kokwelapha.
• Ukusebenziseka: Qinisekisa ukuhlakazwa okufanayo kwezinqamuli zomlilo ngaphandle kokuthinta i-viscosity noma isikhathi sokuphulukisa.

5. Ukucatshangelwa

• Ukulawula Usayizi Wezinhlayiyana: Khetha i-nano-size zinc borate (isb, usayizi wezinhlayiyana <1 μm) ukuze uthuthukise ukuhlakazeka.
• Ukuguqulwa Kobuso: Phatha i-zinc borate nge-ejenti yokuhlanganisa i-silane ukuze uthuthukise ukuhambisana ne-epoxy resin.
• Ukuthobela Umthetho: Qinisekisa ukuthi izinqamuli zomlilo ezikhethiwe ziyahlangabezana ne-RoHS, REACH, neminye imithetho.

6. Ukwakhiwa Kwesibonelo (Inkomba)

7. Isifinyezo

• I-Zinc borate iyisinqumo esisebenzayo sokunciphisa ukukhishwa kwentuthu. Ncoma ukungeza10-15 phrkuyilapho yehlisa ngokumaphakathi okuqukethwe kwe-aluminium hypophosphite/MCA.
• Ukuze uthole okunye ukucindezela intuthu, xuba nezinhlanganisela ze-molybdenum (isb,4-6 imiz).
• Ukuqinisekisa kokuhlola kuyadingeka ukuze kulinganiswe ukuncipha komlilo, ukucindezelwa kwentuthu, kanye nezakhiwo zemishini.

Let me know if you’d like any refinements! Lucy@taifeng-fr.com