Igishushanyo mbonera cya MCA na Aluminium Hypophosphite (AHP) mu Gutandukanya Gutandukanya Flame

Igishushanyo mbonera cya MCA na Aluminium Hypophosphite (AHP) mu Gutandukanya Gutandukanya Flame

Ukurikije ibyo umukoresha asabwa byihariye bya flame-retardant itandukanya, ibirangaMelamine Cyanurate (MCA)naAluminium Hypophosphite (AHP)zasesenguwe ku buryo bukurikira:

1. Guhuza na sisitemu ya Slurry

• MCA:
• Sisitemu y'amazi:Irasaba guhindura isura (urugero, ibikoresho bya silane bihuza cyangwa surfactants) kugirango bitezimbere; bitabaye ibyo, agglomeration irashobora kubaho.
• Sisitemu ya NMP:Irashobora kwerekana kubyimba gake mumashanyarazi (birasabwa: igipimo cyo kubyimba nyuma yo kwibizwa muminsi 7).
• AHP:
• Sisitemu y'amazi:Gutandukana neza, ariko pH igomba kugenzurwa (imiterere ya aside irashobora gutera hydrolysis).
• Sisitemu ya NMP:Imiti myinshi ihamye hamwe nibishobora kubyimba bike.
  Umwanzuro:AHP yerekana guhuza neza, mugihe MCA isaba guhinduka.

2. Ingano yingirakamaro hamwe nuburyo bwo gutwikira

• MCA:
• Umwimerere D50: ~ 1-2 mm; bisaba gusya (urugero, gusya umucanga) kugirango ugabanye ingano, ariko birashobora kwangiza imiterere yabyo, bigira ingaruka kumikorere ya flame-retardant.
• Nyuma yo gusya uburinganire bugomba kugenzurwa (SEM indorerezi).
• AHP:
• Umwimerere D50: Mubisanzwe ≤5 μ m; gusya kuri D50 0.5 μ m / D90 1 μm birashoboka (gusya cyane birashobora gutera ibibyimba bitagaragara).
  Umwanzuro:MCA ifite ingano yingirakamaro ihindagurika hamwe ningaruka zo hasi.

3. Kurwanya hamwe no Kurwanya Abrasion

• MCA:
• Uburinganire buke buganisha ku gufatana nabi na firime itandukanya PE / PP; bisaba 5-10% bishingiye kuri acrylic-binders (urugero, PVDF-HFP).
• Coefficient yo hejuru cyane irashobora gukenera kongeramo 0.5-1% nano-SiO₂ kugirango irusheho kunanirwa kwambara.
• AHP:
• Amatsinda ya hydroxyl yubuso akora hydrogène ihuza hamwe nogutandukanya, kunoza neza, ariko 3-5% bihuza polyurethane iracyakenewe.
• Gukomera cyane (Mohs ~ 3) birashobora gutera microparticle kumeneka mugihe kirekire (bisaba kwipimisha cycle).
  Umwanzuro:AHP itanga imikorere myiza muri rusange ariko isaba guhuza neza.

4. Ubushyuhe bwumuriro nibintu byangirika

• MCA:
• Ubushyuhe bwo kubora: 260–310 ° C; ntishobora kubyara gaze kuri 120-150 ° C, birashoboka kunanirwa guhagarika ubushyuhe bwumuriro.
• AHP:
• Ubushyuhe bwo kubora: 280–310 ° C, nabwo ntibihagije kubyara gaze ubushyuhe buke.
  Ikibazo cy'ingenzi:Byombi byangirika hejuru yintego (120–150 ° C).Ibisubizo:
• Menyekanisha ubukonje buke (urugero, fosifore itukura ya microencapsulée, urwego rwangirika: 150-200 ° C) cyangwa polimosifike ya amonium yahinduwe (APP, yashizwemo kugirango ihindure kubora kugeza kuri 140-180 ° C).
• Shushanya anMCA / APP igizwe (6: 4 igereranyo)gukoresha ingufu za gazi ya APP yubushyuhe buke + MCA ya gaz-fase yo kubuza umuriro.

5. Kurwanya amashanyarazi no kwangirika

• MCA:
• Amashanyarazi yimbaraga, ariko melamine isigaye yubusa (isuku ≥99.5% isabwa) irashobora guhagarika kwangirika kwa electrolyte.
• AHP:
• Umwanda wa aside (urugero, H₃PO₂) ugomba kugabanywa (ikizamini cya ICP: ion ion ≤10 ppm) kugirango wirinde kwihuta kwa hydrolysis ya LiPF₆.
  Umwanzuro:Byombi bisaba ubuziranenge bwinshi (≥99%), ariko MCA yoroshye kuyisukura.

Icyifuzo Cyuzuye Cyifuzo

1. Guhitamo Ibanze rya Flame Retardant:

• Bikunzwe:AHP.
• Ubundi buryo:Yahinduwe MCA (carboxyl-yashushanyijeho gukwirakwiza amazi) + APP ikomatanya.

1. Gukwirakwiza inzira:

• Inzira itemewe:AHP (90%) + guhuza polyurethane (7%) + umukozi woza (BYK-346, 0.5%) + defoamer (2%).
• Gusya ibipimo:Urusyo rwumucanga rufite 0,3 mm ZrO₂ amasaro, 2000 rpm, 2 h (intego D90 ≤1 μm).

1. Ibizamini byo Kwemeza:

• Kubora k'ubushyuhe:TGA (gutakaza ibiro <1% kuri 120 ° C / 2h; umusaruro wa gaze kuri 150 ° C / 30min ukoresheje GC-MS).
• Amashanyarazi ahamye:SEM kwitegereza nyuma yiminsi 30 yibizwa muri 1M LiPF₆ EC / DMC kuri 60 ° C.

Icyifuzo cya nyuma

Yaba MCA cyangwa AHP yonyine yujuje ibisabwa byose. A.Sisitemu ya Hybridni inama:

• AHP (matrix)+microencapsulated fosifore itukura (generator yubushyuhe buke)+nano-SiO₂(abrasion resistance).
• Mwemere hamwe na resin yo mu mazi menshi (urugero, acrylic-epoxy composite emulsion) hanyuma uhindure uburyo bwo guhindura ubuso kugirango ubunini buke / butatanye.
  Ibindi bizaminiirakenewe kugirango twemeze ubushyuhe-amashanyarazi.