ụfọdụ usoro ntụaka rọba silicone dabere na ihe na-egbochi ọkụ na-enweghị halogen

Lee atụmatụ ise e ji mee rọba silicone dabere na ihe mgbochi ọkụ na-enweghị halogen, gụnyere ihe mgbochi ọkụ nke ndị ahịa na-enye (aluminum hypophosphite, zinc borate, MCA, aluminum hydroxide, na ammonium polyphosphate). Ebumnuche nke imewe ndị a bụ iji hụ na ire ọkụ anaghị agba ọsọ ebe a na-ebelata ọnụọgụ ihe mgbakwunye iji belata mmetụta ya na ihe onwunwe nke rọba silicone.

1. Sistemụ Nrụpụta Ọkụ Phosphorus-Nitrogen (Ụdị Nrụpụta Ọkụ Dị Elu)

Ebumnuche: UL94 V-0, obere anwụrụ ọkụ, dabara adaba maka ojiji okpomọkụ dị n'etiti ruo n'ọkwa dị elu

Rubber Ntọala: Rọba silicone methyl vinyl (VMQ, 100 phr)

Ihe ndị na-egbochi ire ọkụ:

• Aluminom hypophosphite (AHP, dabere na phosphorus): 15 phr
• Ọ na-enye phosphorus dị irè, na-akwalite mmepụta ike, ma na-egbochi ọkụ gas-phase.
• Melamine cyanurate (MCA, dabere na nitrogen): 10 phr
• Na-ejikọta ya na phosphorus, na-ewepụta gas ndị na-adịghị arụ ọrụ, ma na-ebelata ikuku oxygen.
• Zinc borate (ZnB): 5 phr
• Na-akpali mmepụta char, na-egbochi anwụrụ ọkụ, ma na-eme ka ọnọdụ char oyi akwa dịkwuo mma.
• Aluminom hydroxide (ATH, usoro kemịkalụ, 1.6–2.3 μm): 20 phr
• Mmebi nke endothermic, ire ọkụ enyemaka, na mmụba nke mgbasa.

Ihe mgbakwunye:

• Mmanụ silikọn hydroxyl (2 phr, na-eme ka nhazi dịkwuo mma)
• Silica a na-akpọ ọkụ (10 phr, nkwado)
• Ihe na-agwọ ọrịa (Diperoxide, 0.8 phr)

atụmatụ:

• Mkpokọta ihe na-egbochi ire ọkụ ~ 50 phr, na-edozi mbelata ire ọkụ na njirimara igwe.
• Njikọta phosphorus-nitrogen (AHP + MCA) na-ebelata ọnụọgụ ihe mgbochi ọkụ nke ọ bụla achọrọ.

2. Sistemụ Nkwụsị Ọkụ Na-adịghị Egbute (Ụdị Na-ebu Ibu Dị Ala)

Ebumnuche: UL94 V-1/V-0, dị mma maka ngwaahịa dị gịrịgịrị

Rubber Ntọala: VMQ (100 phr)

Ihe ndị na-egbochi ire ọkụ:

• Ammonium polyphosphate (APP, dabere na phosphorus-nitrogen): 12 phr
• Isi nke intumescent char formation, ya na ezigbo ndakọrịta na silicone roba.
• Aluminom hypophosphite (AHP): 8 phr
• Isi iyi phosphorus mgbakwunye, na-ebelata hygroscopicity nke APP.
• Zinc borate (ZnB): 5 phr
• Mmetụta nke njikọta na mgbochi ntapu.
• Aluminom hydroxide (ala, 3–20 μm): 15 phr
• Ihe na-egbochi ire ọkụ dị ọnụ ala, na-ebelata ibu ọrụ APP.

Ihe mgbakwunye:

• Mmanụ silikọn vinyl (3 phr, plasticization)
• Silica mmiri ozuzo (15 phr, nkwado)
• Sistemụ ọgwụgwọ Platinum (0.1% Pt)

atụmatụ:

• Ibu zuru oke nke ihe na-egbochi ire ọkụ ~ 40 phr, dị irè maka ngwaahịa dị gịrịgịrị n'ihi usoro intumescent.
• APP chọrọ ọgwụgwọ elu (dịka ọmụmaatụ, ihe na-ejikọ silane) iji gbochie mbugharị.

3. Sistemụ Aluminom Hydroxide Kachasị Elu nke Na-ebu Ibu (Ụdị Dị Irè)

Ebumnuche: UL94 V-0, dị mma maka ngwaahịa ma ọ bụ eriri dị arọ

Rubber Ntọala: VMQ (100 phr)

Ihe ndị na-egbochi ire ọkụ:

• Aluminom hydroxide (ATH, usoro kemịkalụ, 1.6–2.3 μm): 50 phr
• Ihe na-egbochi ire ọkụ nke mbụ, mmebi endothermic, obere nha ihe maka mgbasa ka mma.
• Aluminom hypophosphite (AHP): 5 phr
• Na-eme ka arụmọrụ nhazi char dịkwuo mma, na-ebelata ibu ATH.
• Zinc borate (ZnB): 3 phr
• Mbelata anwụrụ ọkụ na igbochi ọkụ.

Ihe mgbakwunye:

• Ihe na-eme ka njikọ Silane dị mma (KH-550, 1 phr, na-eme ka njikọ ATH ka mma)
• Silica a na-akpọ ọkụ (8 phr, nkwado)
• Ọgwụgwọ peroxide (DCP, 1 phr)

atụmatụ:

• Mkpokọta ihe mgbochi ọkụ na-ebu ~58 phr, mana ATH na-achịkwa maka arụmọrụ ọnụ ahịa.
• Obere nha nke ATH na-ebelata mfu ike nrụgide.

4. Sistemụ Aluminom Hypophosphite (AHP) nke na-anaghị eguzo otu ebe

Ngwa: UL94 V-1/V-2, ma ọ bụ ebe ihe ndị na-esi na nitrogen apụta adịghị mma (dịka ọmụmaatụ, izere ụfụfụ MCA na-emetụta ọdịdị ahụ).

Usoro akwadoro:

• Rubber Ntọala: VMQ (100 phr)
• Aluminom hypophosphite (AHP): 20–30 hr
• Ọdịnaya phosphorus dị elu (40%); 20 phr na-enye ihe dịka 8% phosphorus maka igbochi ire ọkụ.
• Maka UL94 V-0, mụbaa ruo 30 phr (nwere ike imebi njirimara igwe).
• Ihe Ndochi Na-eme Ka Obi Sikwuo IkeSilica (10-15 phr, na-eme ka ike dịgide)
• Ihe mgbakwunye: Mmanụ silikọn Hydroxyl (2 phr, nhazi) + ihe na-agwọ ọrịa (Diperoxide ma ọ bụ sistemụ platinum).

atụmatụ:

• Ọ na-adabere na mgbochi ire ọkụ nke a na-akpọ condensed-phase (mmepụta char), na-eme ka LOI ka mma nke ukwuu mana ọ nwere oke mbelata ikuku anwụrụ ọkụ.
• Ibu dị elu (> 25 phr) nwere ike ime ka ihe ahụ sie ike; a na-atụ aro ka ị tinye 3-5 phr ZnB iji melite mma nke ike.

5. Aluminom Hypophosphite (AHP) + MCA ngwakọta

Ngwa: UL94 V-0, obere ibu yana njikọ gas-phase retardant retardant.

Usoro akwadoro:

• Rubber Ntọala: VMQ (100 phr)
• Aluminom hypophosphite (AHP): 12–15 hr
• Isi iyi nke phosphorus maka ịmepụta chara.
• MCA: 8–10 hr
• Isi iyi nitrogen maka njikọta PN, na-ewepụta gas ndị na-adịghị arụ ọrụ (dịka ọmụmaatụ, NH₃) iji gbochie mgbasa ọkụ.
• Ihe Ndochi Na-eme Ka Obi Sikwuo Ike: Silica (10 phr)
• Ihe mgbakwunye: Ihe njikọta Silane (1 phr, enyemaka mgbasa) + ihe na-agwọ ọrịa.

atụmatụ:

• Mkpokọta ihe na-egbochi ire ọkụ ~ 20–25 phr, nke dị obere nke ukwuu karịa AHP nke na-adịghị eguzo otu ebe.
• MCA na-ebelata ihe achọrọ maka AHP mana ọ nwere ike imetụta ntakịrị nghọta (jiri nano-MCA ma ọ bụrụ na ọ dị mkpa ka o doo anya).

Nchịkọta Nhazi Ihe Mgbochi Ọkụ

Ndụmọdụ Nnwale

1. Nnwale Mkpa: AHP + MCA (15+10 phr). Ọ bụrụ na e nweta V-0, jiri nwayọ belata AHP (dịka ọmụmaatụ, 12+10 phr).
2. Ule AHP nke Naanị Ya: Malite na 20 phr, mụbaa site na 5 phr iji nyochaa LOI na UL94, na-enyocha njirimara igwe.
3. Mgbochi Anwụrụ ọkụ: Tinye 3–5 phr ZnB na usoro ọ bụla na-enweghị imebi ike ire ọkụ.
4. Nhazi Ọnụego: Tinye ATH 10–15 phr iji belata ọnụ ahịa, mana mkpokọta ihe eji emeju ihe na-abawanye.

Usoro Ngwakọta Akwadoro

(Maka roba silicone nke nwere akụkụ abụọ nke a na-agwọ)

1. Ọgwụgwọ maka Rubber nke Isi:

• Tinye roba silikon (dịka ọmụmaatụ, 107 gum, mmanụ silikon vinyl) n'ime igwekota mbara ala, mee ka ọ ghara ịbanye n'ime ikuku ma ọ bụrụ na ọ dị mkpa.

1. Mgbakwunye nke na-egbochi ire ọkụ:

• ihe ndị na-egbochi ire ọkụ ntụ ntụ (dịka ọmụmaatụ, ATH, MH):
• Tinye n'ime otu, gwakọta ya na roba isi (ngwakọta dị obere ọsọ, nkeji 10-15) iji zere ịchịkọta.
• Kpoo ya na okpomọkụ nke 80–120°C ma ọ bụrụ na ọ dị mmiri mmiri.
• ihe na-egbochi ire ọkụ mmiri mmiri (dịka ọmụmaatụ, phosphates):
• Gwakọta ya ozugbo na mmanụ silikọn, crosslinker, wdg, n'okpuru akwa dị elu (nkeji 20-30).

1. Ihe mgbakwunye ndị ọzọ:

• Tinye ihe ndị na-ejupụta (dịka ọmụmaatụ, silica), ihe na-ejikọta ihe (hydrosilane), ihe na-akpali akpali (platinum), na ihe ndị na-egbochi ya n'usoro.

1. Nhazi otu:

• Jiri igwe mpịachi atọ ma ọ bụ emulsifier dị elu mee ka mgbasa ahụ ka mma (dị oke mkpa maka ihe mgbakwunye nano dị ka CNT).

1. Ịkwụsị na Nzacha:

• Vacuum degas (-0.095 MPa, nkeji iri atọ), nzacha maka ihe achọrọ maka ịdị ọcha dị elu.

Ihe Ndị Dị Mkpa A Ga-atụle

• Nhọrọ nke ihe na-egbochi ire ọkụ:
• Ihe mgbochi nke na-enweghị halogen (dịka ọmụmaatụ, ATH) chọrọ obere nha (1–5 μm); oke ibu na-emebi ihe onwunwe igwe.
• Ihe ndị na-egbochi ihe ndị e ji silicone mee (dịka ọmụmaatụ, resin silicone phenyl) na-enye ohere ka mma maka ha mana ha na-efu nnukwu ego.
• Njikwa Usoro:
• Okpomọkụ ≤ 60°C (na-egbochi nsị nke platinum catalyst ma ọ bụ ọgwụgwọ tupu oge eruo).
• Iru mmiri ≤ 50% RH (na-ezere mmeghachi omume n'etiti mmanụ silicone hydroxyl na ihe ndị na-egbochi ire ọkụ).

Mmechi

• Mmepụta Oke: Gwakọta ihe ndị na-egbochi ire ọkụ tupu oge eruo na roba ntọala maka arụmọrụ.
• Ihe Ndị Dị Elu Na-achọ: Gwakọta ya mgbe a na-agwakọta ya iji belata ihe egwu nchekwa.
• Sistemụ Nano-Ọkụ Nano: Ọ dị mkpa ka a gbasaa oke mkpụkọ iji gbochie njikọta.

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