silicone reberi yerekana uburyo bushingiye kuri halogen-flame retardants

Hano haribishushanyo mbonera bitanu bya silicone reberi ishingiye kuri halogen idafite flame retardants, ikubiyemo flame retardants itangwa numukiriya (aluminium hypophosphite, zinc borate, MCA, hydroxide ya aluminium, na polifosifike ya amonium). Ibishushanyo bigamije kwemeza ko flame idasubira inyuma mugihe hagabanijwe umubare winyongera kugirango ugabanye ingaruka kumiterere ya mashini ya reberi ya silicone.

1.

Intego: UL94 V-0, umwotsi muke, ukwiranye nubushyuhe bwo hagati-hejuru-yubushyuhe

Rubber: Methyl vinyl silicone rubber (VMQ, interuro 100)

Flame Retardants:

• Aluminium hypophosphite (AHP, fosifore ishingiye): 15 interuro
• Itanga isoko ya fosifore ikora neza, iteza imbere char, kandi igahagarika gaze-fase.
• Melamine cyanurate (MCA, ishingiye kuri azote): 10 interuro
• Ihuza na fosifore, irekura imyuka ya inert, ikanagabanya ogisijeni.
• Zinc borate (ZnB): 5 interuro
• Catalyses char char, ihagarika umwotsi, kandi izamura char layer ituje.
• Hydroxide ya aluminium (ATH, uburyo bwa shimi, 1.6-22.3 μ m): 20 interuro
• Kwangirika kwa Endothermic, flame retardancy, hamwe no gukwirakwiza neza.

Inyongera:

• Amavuta ya Hydroxyl silicone (interuro 2, atezimbere imikorere)
• Silica yamenetse (interuro 10, gushimangira)
• Umuti ukiza (Diperoxide, 0.8 interuro)

Ibiranga:

• Flame retardant yuzuye yuzuye ~ 50 interuro, kuringaniza flame retardancy hamwe nubukanishi.
• Fosifore-azote ikorana (AHP + MCA) igabanya umubare ukenewe wa retardants ya flame.

2. Sisitemu ya Flame Retardant Sisitemu (Ubwoko Buremereye)

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

Rubber: VMQ (interuro 100)

Flame Retardants:

• Ammonium polyphosifate (APP, fosifore-azote ishingiye): 12 interuro
• Intangiriro yimikorere ya char intumescente, hamwe nibihuza neza na rubber silicone.
• Aluminium hypophosphite (AHP): 8 interuro
• Inkomoko ya fosifore yinyongera, igabanya APP hygroscopicity.
• Zinc borate (ZnB): 5 interuro
• Synergistic char catalysis no guhagarika ibitonyanga.
• Hydroxide ya aluminium (hasi, 3–20 mm): 15 interuro
• Igiciro gito gifasha flame retardant, kugabanya imitwaro ya APP.

Inyongera:

• Amavuta ya Vinyl silicone (interuro 3, plastike)
• Silica yaguye (interuro 15, gushimangira)
• Sisitemu yo gukiza platine (0.1% Pt)

Ibiranga:

• Flame retardant yuzuye yuzuye ~ 40 interuro, ikora kubicuruzwa bito kubera uburyo bwa intumescent.
• APP isaba kuvura hejuru (urugero, umukozi wa silane uhuza) kugirango wirinde kwimuka.

3. Yuzuye-Aluminium Hydroxide Yuzuye Sisitemu (Igiciro-Cyiza)

Intego: UL94 V-0, ibereye ibicuruzwa byinshi cyangwa insinga

Rubber: VMQ (interuro 100)

Flame Retardants:

• Hydroxide ya aluminium (ATH, uburyo bwa shimi, 1.6-22.3 μ m): 50 interuro
• Flame primaire retardant, endothermic decomposition, ingano ntoya kugirango ikwirakwizwe neza.
• Aluminium hypophosphite (AHP): 5 interuro
• Gutezimbere imikorere ya char, igabanya imizigo ya ATH.
• Zinc borate (ZnB): 3 interuro
• Kurwanya umwotsi no kurwanya urumuri.

Inyongera:

• Umukozi uhuza Silane (KH-550, interuro 1, atezimbere ATH)
• Silica yamenetse (interuro 8, gushimangira)
• Gukiza Peroxide (DCP, interuro 1)

Ibiranga:

• Flame retardant yuzuye yuzuye ~ 58 interuro, ariko ATH yiganje kubikorwa byigiciro.
• Ingano ntoya ya ATH igabanya imbaraga zo gutakaza imbaraga.

4. Sisitemu ya Aluminium Hypophosphite (AHP) Sisitemu

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

Gusabwa:

• Rubber: VMQ (interuro 100)
• Aluminium hypophosphite (AHP): 20-30 interuro
• Ibirimo fosifore nyinshi (40%); 20 interuro itanga ~ 8% ya fosifore yibanze yumuriro.
• Kuri UL94 V-0, ongera kuri 30 interuro (irashobora kwangiza imiterere yubukanishi).
• Gushimangira kuzuza: Silica (interuro 10-15, ikomeza imbaraga)
• Inyongera: Amavuta ya hydroxyl silicone (interuro 2, gutunganya) + imiti ikiza (Diperoxide cyangwa platine).

Ibiranga:

• Yishingikirije kumurongo wa flame retardancy (char char), itezimbere cyane LOI ariko ifite umwotsi muke.
• Kuremerera cyane (> 25 interuro) birashobora kunangira ibikoresho; tekereza kongeramo 3-5 interuro ZnB kugirango uzamure ubuziranenge bwa char.

5. Aluminium Hypophosphite (AHP) + Uruvange rwa MCA

Gusaba: UL94 V-0, gupakira gake hamwe na gaz-fase flame retardant synergy.

Gusabwa:

• Rubber: VMQ (interuro 100)
• Aluminium hypophosphite (AHP): 12-15 interuro
• Inkomoko ya fosifore yo gushiraho char.
• MCA: 8-10 interuro
• Inkomoko ya azote ya PN ikorana, irekura imyuka ya inert (urugero, NH₃) kugirango ihagarike ikwirakwizwa ryumuriro.
• Gushimangira kuzuza: Silica (interuro 10)
• Inyongera: Umukozi uhuza Silane (interuro 1, imfashanyo yo gutatanya) + umukozi ukiza.

Ibiranga:

• Flame retardant yuzuye yuzuye ~ 20-25 interuro, munsi cyane ugereranije na AHP.
• MCA igabanya ibisabwa na AHP ariko irashobora kugira ingaruka nke mumucyo (koresha nano-MCA niba bikenewe).

Flame Retardant formulaire Incamake

Ibyifuzo byubushakashatsi

1. Kwipimisha Icyambere: AHP + MCA (15 + 10 interuro). Niba V-0 igerwaho, gabanya buhoro buhoro AHP (urugero, 12 + 10 interuro).
2. Ikizamini cya AHP: Tangira kuri 20 interuro, kwiyongera kuri 5 interuro yo gusuzuma LOI na UL94, kugenzura imiterere yubukanishi.
3. Kurwanya Umwotsi: Ongeramo interuro 3-5 ZnB muburyo ubwo aribwo bwose utabangamiye umuriro.
4. Gukwirakwiza ibiciro: Shyiramo interuro 10-15 ATH kugirango ugabanye ikiguzi, nubwo ibyuzuye byuzuye byiyongera.

Basabwe kuvanga inzira

(Kubice bibiri byongeyeho-gukiza silicone rubber)

1. Base Rubber Mbere yo Kuvura:

• Shira reberi ya silicone (urugero, gum 107, amavuta ya vinyl silicone) mukuvanga umubumbe, degas munsi ya vacuum nibikenewe.

1. Flame Retardant Yongeyeho:

• Ifu ya flame retardants (urugero, ATH, MH):
• Ongeramo mubice, mbere yo kuvanga na reberi fatizo (kuvanga umuvuduko muke, 10-15 min) kugirango wirinde agglomeration.
• Kuma kuri 80-120 ° C niba hygroscopique.
• Amazi ya flame retardants (urugero, fosifate):
• Kuvanga neza namavuta ya silicone, crosslinker, nibindi, munsi yicyuma kinini (min 20-30).

1. Ibindi Byongeweho:

• Ongeraho muburyo bwuzuye wuzuza (urugero, silika), crosslinker (hydrosilane), catalizator (platine), na inhibitor.

1. Guhuza ibitsina:

• Ongera utunganyirize gutatanya ukoresheje urusyo ruzengurutswe cyangwa emulifiyeri-yohejuru cyane (ingenzi kuri nano-inyongera nka CNT).

1. Gutesha agaciro & Kwiyungurura:

• Vacuum degas (-0.095 MPa, 30 min), kuyungurura ibisabwa-byera cyane.

Ibitekerezo by'ingenzi

• Guhitamo Flame Retardant:
• Halogen idafite retardants (urugero, ATH) isaba ubunini buke (1-5 mm); kurenza urugero byangiza imiterere yubukanishi.
• Silicone ishingiye kuri retardants (urugero, fenyl silicone resin) itanga guhuza neza ariko kubiciro byinshi.
• Igenzura:
• Ubushyuhe ≤ 60 ° C (birinda uburozi bwa platine cyangwa gukira imburagihe).
• Ubushyuhe ≤ 50% RH (irinda reaction hagati yamavuta ya hydroxyl silicone na retardants).

Umwanzuro

• Umusaruro rusange: Mbere yo kuvanga flame retardants hamwe na reberi yibanze kugirango ikore neza.
• Ibisabwa bihamye: Kuvanga mugihe cyo guhuza kugirango ugabanye ingaruka zo kubika.
• Sisitemu ya Nano-Flame: Gutegekwa gutegekwa hejuru-shear kugirango wirinde agglomeration.

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