Amakuru

Halogen-Yubusa Flame Retardant Gutegura no Gutunganya Ikoranabuhanga rya Epoxy Resin

Umukiriya arashaka ibidukikije byangiza ibidukikije, bitarimo halogene, hamwe nicyuma kiremereye cyumuriro udakwiranye na epoxy resin hamwe na sisitemu yo gukiza anhydride, bisaba kubahiriza UL94-V0. Umuti ukiza ugomba kuba ufite ubushyuhe bwo hejuru bwa epoxy ikiza hamwe na Tg iri hejuru ya 125 ° C, bisaba gukira ubushyuhe kuri 85-120 ° C no gutinda buhoro mubushyuhe bwicyumba. Hasi nuburyo burambuye nkuko byasabwe nabakiriya.

I. Sisitemu yo Gutunganya Flame Retardant

1. Sisitemu yibanze ya Flame Retardant: Fosifore-Azote Synergy

Imbonerahamwe yamakuru yumuriro

Flame Retardant	Urwego	Gusabwa Kuremera	Ijambo
Aluminium hypophosphite	Icyiciro cya flame retardancy, ikora aluminium fosifate char layer	10-15%	Flame primaire retardant, kubora temp. > 300 ° C.
Amonium polyphosifate (APP)	Intumescente flame retardancy, ihuza na aluminium hypophosphite	5-10%	APP irwanya aside irakenewe
Melamine cyanurate (MCA)	Inkomoko ya azote, yongerera imbaraga za fosifore, irwanya umwotsi	3-5%	Kugabanya ibitonyanga

2. Inkunga ya Flame Retardants hamwe na Synergiste

Imbonerahamwe Yumufasha Utanga amakuru Imbonerahamwe

Flame Retardant	Urwego	Gusabwa Kuremera	Ijambo
Zinc borate	Guteza imbere gushiraho char, guhagarika nyuma	2-5%	Umubare urenze urugero urashobora gutinda gukira
Hydroxide nziza ya aluminium	Gukonjesha Endothermic, guhagarika umwotsi	5-8%	Kugenzura imizigo (kugirango wirinde kugabanya Tg)

3. Gutanga urugero (Gutwara byose: 20-30%)

Ishingiro shingiro (Bifitanye isano na Resin Yuzuye)

Ibigize	Ibirimo (Bifitanye isano na Resin)
Aluminium hypophosphite	12%
APP	8%
MCA	4%
Zinc borate	3%
Hydroxide ya aluminium	5%
Umutwaro wose	32% (birashobora guhinduka kuri 25-30%)

II. Intambwe Zingenzi zo Gutunganya

1. Kuvanga no gutatanya

A. Mbere yo Kuvura:

Kuma aluminium hypophosphite, APP, na MCA kuri 80 ° C mumasaha 2 (birinda kwinjiza amazi).
Kuvura ibintu bituzuye (aluminium hydroxide, zinc borate) hamwe na silane ihuza (urugero, KH-550).

B. Kuvanga Urukurikirane:

Epoxy resin + Flade retardants (60 ° C, koga kuri 1h)
Ongeramo anhydride ikiza (komeza ubushyuhe <80 ° C)
Kwangiza imyanda (-0.095 MPa, 30 min)

2. Gukiza inzira

Gukiza Intambwe (Kuringaniza flame retardant stabilite na Tg ndende):

85 ° C / 2h (gutangira buhoro, kugabanya ibituba)
120 ° C / 2h (yemeza ko anhydride yuzuye)
150 ° C / 1h (byongera ubwuzuzanye, Tg> 125 ° C)

3. Ingingo z'ingenzi

Igenzura rya Viscosity: Niba viscosity ari ndende cyane, ongeramo 5% reaction epoxy diluent (urugero, AGE).
Gutinda gukira: Koresha methylhexahydrophthalic anhydride (MeHHPA) cyangwa ongeramo 0.2% 2-Ethyl-4-methylimidazole (bidindiza ibyumba byubushyuhe).

III. Kugenzura Imikorere & Guhindura

1. Kubura umuriro:

Ikizamini cya UL94 V0 (uburebure bwa 1,6mm): Menya neza ko igihe cyo gutwika
Niba binaniwe: Ongera hypophosphite ya aluminium (+ 3%) cyangwa APP (+ 2%).

2. Imikorere yubushyuhe:

Ikizamini cya DSC kuri Tg: Niba Tg <125 ° C, gabanya hydroxide ya aluminium (igabanya Tg kubera ingaruka za endothermic).

3. Ibikoresho bya mashini:

Niba imbaraga za flexural zigabanutse, ongeramo 1-2% nano-silika kugirango ushimangire.

IV. Ibishoboka Ibibazo & Ibisubizo

Flame Retardant Ibibazo & Imbonerahamwe

Ikibazo	Impamvu	Igisubizo
Gukiza kutuzuye	Kwinjiza ubuhehere cyangwa pH kubangamira flame retardants	Byuzuye byuzuza, koresha APP irwanya aside
Amazi mabi	Kurenza urugero	Mugabanye hydroxide ya aluminium kuri 3% cyangwa ongeramo diluent
UL94 gutsindwa	Imikoreshereze idahagije ya PN	Ongera MCA (kuri 6%) cyangwa hypophosifite ya aluminium (kugeza 15%)