zimwe mu nganda zikoresha icyuma cya silicone gishingiye ku bintu bigabanya umuriro bidafite halogen

Dore imiterere itanu ya silicone rubber ishingiye ku bintu bigabanya umuriro bitagira halogen, birimo ibintu bigabanya umuriro bitangwa n'umukiriya (aluminium hypophosphite, zinc borate, MCA, aluminiyumu hydroxide, na ammonium polyphosphate). Iyi miterere igamije gutuma umuriro udacika ariko ikagabanya ingano y'inyongera kugira ngo igabanye ingaruka ku miterere ya silicone rubber.

1. Sisitemu yo gukumira umuriro wa Fosifore na Azote (Ubwoko bwo gukora Char bukora neza cyane)

Intego: UL94 V-0, umwotsi muke, ikwiriye gukoreshwa mu bushyuhe buri hagati kugeza kuri buri hejuru

Rubber y'ibanze: Methyl vinyl silicone rubber (VMQ, 100 phr)

Ibibuza umuriro:

• Hypophosite ya aluminiyumu (AHP, ishingiye kuri fosifore): Ibice 15
• Itanga isoko nziza ya fosifore, iteza imbere ikorwa ry’ibinyampeke, kandi ikagabanya gutwika kw’ibinyampeke.
• Melamine cyanurate (MCA, ishingiye kuri azote): Ibice 10
• Ikorana na fosifore, isohora imyuka idafite umwuka, kandi igagabanya ogisijeni.
• Borate ya Zinc (ZnB): Ibice 5
• Itera imbaraga mu kurema kwa char, ikagabanya umwotsi, kandi ikongera ubudahangarwa bw'urutonde rwa char.
• Hydroxide ya aluminiyumu (ATH, uburyo bwa chimique, 1.6–2.3 μm): Ibice 20
• Gusenyuka kw'umuriro mu buryo bw'inyongera, kudakora neza kw'umuriro, no kunoza uburyo bwo gukwirakwiza umuriro.

Inyongeramusaruro:

• Amavuta ya Hydroxyl silicone (2 phr, atuma itunganywa neza)
• Silika ifumye (10 phr, kongera imbaraga)
• Umuti uvura (Diperoxide, 0.8 phr)

Ibiranga:

• Igipimo cy'umuriro kidakoresha umuriro cyose kingana na 50 phr, kiringaniza ubushobozi bwo kudakoresha umuriro n'imiterere ya mekanike.
• Guhuza fosifore na azote (AHP + MCA) bigabanya ingano isabwa y'ibintu bigabanya umuriro ku giti cyabyo.

2. Sisitemu yo Kugabanya Umuriro mu Gihe cy'Imbere (Ubwoko bwo Gushyiramo Umuzigo Muke)

Intego: UL94 V-1/V-0, ikwiriye ibicuruzwa bito

Rubber y'ibanze: VMQ (amafilimi 100)

Ibibuza umuriro:

• Ammonium polyphosphate (APP, ishingiye kuri azote ikomoka kuri fosifore): Ibice 12
• Ishingiro ry'imiterere y'ururabo rw'imbere mu gitereko, hamwe n'uburyo bwiza bwo guhuza na silicone rubber.
• Hypophosite ya aluminiyumu (AHP): Ibice 8
• Isoko y'inyongera ya fosifore, igabanya hygroscopicity ya APP.
• Borate ya Zinc (ZnB): Ibice 5
• Gukoresha uburyo bwa "synergistic char catalysis" no kugabanya amazi mu mubiri.
• Hydroxide ya aluminiyumu (ivumbitse, 3–20 μm): Ibice 15
• Imashini igabanya umuriro ihendutse, igabanya uburyo bwo kuyikoresha mu gukora APP.

Inyongeramusaruro:

• Amavuta ya silikoni ya vinyl (3 phr, plasticization)
• Silika yangiritse (15 phr, reinforcement)
• Sisitemu yo gucukura ya Platinum (0.1% Pt)

Ibiranga:

• Umuriro wose ugabanya umuriro ugera kuri 40 phr, bigira ingaruka nziza ku bicuruzwa bito bitewe n'uburyo bwo kubyimba.
• APP isaba gutunganya ubuso (urugero, silane coupling agent) kugira ngo hirindwe kwimuka.

3. Sisitemu yoroshye ya aluminiyumu hifashishijwe hydroxide (ubwoko buhendutse)

Intego: UL94 V-0, ikwiriye ibikoresho binini cyangwa insinga

Rubber y'ibanze: VMQ (amafilimi 100)

Ibibuza umuriro:

• Hydroxide ya aluminiyumu (ATH, uburyo bwa chimique, 1.6–2.3 μm): Ibice 50
• Idakoresha umuriro cyane, ibora mu gice cy'imbere cy'urumuri, ingano nto y'uduce kugira ngo dukwirakwizwe neza.
• Hypophosite ya aluminiyumu (AHP): Ibice 5
• Yongera ubushobozi bwo gukora char, igabanya ATH loading.
• Borate ya Zinc (ZnB): Ibice 3
• Kugabanya umwotsi no kurwanya urumuri.

Inyongeramusaruro:

• Umuhuza wa Silane (KH-550, 1 phr, unoza ihuriro rya ATH)
• Silika ifumye (8 phr, reinforcement)
• Gutunganya peroxide (DCP, 1 phr)

Ibiranga:

• Umuriro wose ugabanya umuriro ugera kuri 58 phr, ariko ATH niyo iyobora mu gukoresha neza ikiguzi.
• Ingano nto y'uduce twa ATH igabanya gutakaza imbaraga zo gukurura.

4. Sisitemu ya Aluminium Hypophosphite (AHP) yigenga

Porogaramu: UL94 V-1/V-2, cyangwa aho amasoko ya azote adakenewe (urugero, kwirinda ifuro rya MCA rigira ingaruka ku isura).

Uburyo bwo gukora busabwa:

• Rubber y'ibanze: VMQ (amafilimi 100)
• Hypophosite ya aluminiyumu (AHP): 20–30
• Fosifore nyinshi (40%); 20 phr itanga fosifore ingana na ~8% mu gutuma umuriro udakora neza.
• Kuri UL94 V-0, zamuka ugere kuri 30 phr (bishobora kwangiza imiterere ya mekanike).
• Ingufu zo kongera imbaraga: Silika (10–15 phr, ikomeza imbaraga)
• Inyongeramusaruro: Amavuta ya silikoni ya Hydroxyl (2 phr, ubushobozi bwo kuyatunganya) + umuti uvura (Diperoxide cyangwa sisitemu ya platine).

Ibiranga:

• Ikoresha uburyo bwo kugabanya umuriro mu gihe cy’izuba (condensed phase flare retard), irushaho kunoza cyane LOI ariko igabanya umwotsi muke.
• Umutwaro mwinshi (>25 phr) ushobora gutuma ibikoresho bikomera; ndagusaba kongeramo ZnB ya phr 3-5 kugira ngo wongere ubwiza bw'ibara.

5. Aluminium Hypophosphite (AHP) + MCA Vange

Porogaramu: UL94 V-0, ifite umutwaro muke hamwe n'ubufatanye butuma umuriro udakora neza.

Uburyo bwo gukora busabwa:

• Rubber y'ibanze: VMQ (amafilimi 100)
• Hypophosite ya aluminiyumu (AHP): Ibice 12–15
• Isoko ya fosifore yo gukora ibara ry'umukara.
• MCA: Ibice 8–10
• Isoko ya azote ihuza PN, irekura imyuka idafite imbaraga (urugero, NH₃) kugira ngo ihagarike ikwirakwira ry'inkongi.
• Ingufu zo kongera imbaraga: Silika (amafilimi 10)
• Inyongeramusaruro: Umuti uhuza Silane (1 phr, ubufasha bwo gukwirakwiza) + umuti uvura.

Ibiranga:

• Umubyimba wose ugabanya umuriro ugera kuri 20–25 phr, uri munsi cyane ya AHP yigenga.
• MCA igabanya ibisabwa bya AHP ariko ishobora kugira ingaruka nke ku mucyo (koresha nano-MCA niba bikenewe ko isobanutse neza).

Incamake y'uburyo bwo gukora ibiyobyabwenge bihungabanya umuriro

Inama zo kugerageza

1. Isuzuma ry'ibanze: AHP + MCA (15+10 phr). Niba V-0 igezweho, gabanya AHP buhoro buhoro (urugero, 12+10 phr).
2. Ikizamini cya AHP cyihariyeTangira kuri 20 phr, wongereho 5 phr kugira ngo usuzume LOI na UL94, ukurikirane imiterere ya mekanike.
3. Kugabanya umwotsi: Ongeraho 3–5 phr ZnB kuri formula iyo ari yo yose nta kwangiza ubushyuhe bw'inkongi.
4. Kunoza Ibiciro: Shyiramo 10–15 phr ATH kugira ngo ugabanye ikiguzi, nubwo umubare wose w'ibikoresho byuzuza wiyongera.

Uburyo bwo kuvanga busabwa

(Kugira ngo wongereho ibice bibiri bya silicone rubber)

1. Mbere yo kuvurwa na Rubber yo mu ntangiriro:

• Shyira rabara ya silikoni (urugero, gum 107, amavuta ya silikoni ya vinyl) mu cyuma givanga imirasire y'isi, hanyuma ushyiremo gaze munsi y'umwuka mu gihe bibaye ngombwa.

1. Inyongera ku buryo butuma umuriro udashira:

• Ibintu bigabanya umuriro byuzuye ifu (urugero, ATH, MH):
• Shyiramo ibice, ubivange mbere na mbere n'icyuma cyo hasi (kuvanga vuba, iminota 10-15) kugira ngo wirinde guterana.
• Kumisha kuri 80–120°C niba ari hygroscopic.
• Ibintu bigabanya umuriro mu mazi (urugero: fosfeti):
• Vanga neza n'amavuta ya silicone, crosslinker, n'ibindi, munsi y'ingufu nyinshi (iminota 20-30).

1. Izindi nyongeramusaruro:

• Shyiramo ibintu byuzuza (urugero: silica), crosslinker (hydrosilane), catalyst (platinum), n'ibibuza.

1. Guhuza ibintu mu buryo bumwe:

• Kongera kunoza uburyo bwo gukwirakwiza hakoreshejwe uruganda rukora imigozi itatu cyangwa emulsifier ifite shear nyinshi (ingenzi ku nyongeramusaruro nka CNTs).

1. Gukuraho imyuka no kuyiyungurura:

• Akayunguruzo k'umwuka uva mu cyuma (-0.095 MPa, iminota 30), kugira ngo hamenyekane niba bikenewe ko habaho isuku nyinshi.

Ibintu by'ingenzi bigomba kwitabwaho

• Guhitamo ibidakoresha umuriro:
• Ibidakora halogen (urugero, ATH) bisaba ingano nto y'uduce (1–5 μm); gukurura cyane byangiza imiterere ya mekanike.
• Ibikoresho bigabanya ubushyuhe bishingiye kuri silikoni (urugero, resins za silikoni za phenyl) bitanga uburyo bwiza bwo guhuza ariko ku giciro cyo hejuru.
• Igenzura ry'Imikorere:
• Ubushyuhe ≤ 60°C (burinda uburozi bwa platine catalyst cyangwa gukira imburagihe).
• Ubushuhe ≤ 50% RH (burinda ingaruka hagati y'amavuta ya silikoni ya hydroxyl n'ibigabanya umuriro).

Umwanzuro

• Umusaruro mwinshi: Vanga mbere ibintu bigabanya umuriro n'icyuma gikoreshwa mu gufunga kugira ngo bikore neza.
• Ibisabwa mu buryo buhamye bwo guhagarara neza: Vanga mu gihe cyo kuvanga kugira ngo ugabanye ibyago byo kubika.
• Sisitemu zigabanya umuriro wa Nano-Flame: Gukwirakwiza ibintu byinshi mu buryo busaba imbaraga nyinshi kugira ngo hirindwe ko ibintu biterana.

More info., pls contact lucy@taifeng-fr.com