wasu nau'ikan bayanan siliki na roba dangane da masu kare harshen wuta marasa halogen

Anan akwai nau'ikan ƙirar roba guda biyar na silicone dangane da masu kare harshen wuta ba tare da halogen ba, suna haɗawa da wutar lantarki da abokin ciniki ke bayarwa (aluminum hypophosphite, zinc borate, MCA, aluminum hydroxide, da ammonium polyphosphate). Waɗannan ƙirar ƙira suna nufin tabbatar da jinkirin harshen wuta yayin da rage yawan ƙari don rage tasirin kayan aikin injin roba na silicone.

1. Phosphorus-Nitrogen Synergistic Flame Retardant System (Nau'in Ƙirƙirar Ƙarfafa Ƙarfafa Ƙarfafawa)

manufa: UL94 V-0, ƙananan hayaki, dace da aikace-aikacen matsakaici-zuwa-zazzabi

Tushen Rubber: Methyl vinyl silicone roba (VMQ, 100 phr)

Harshen wuta:

• Aluminum hypophosphite (AHP, tushen phosphorus)ku: 15 ph
• Yana ba da ingantaccen tushen phosphorus, yana haɓaka haɓakar char, kuma yana danne konewar lokaci na iskar gas.
• Melamine cyanurate (MCA, tushen nitrogen)ku: 10 ph
• Yana aiki tare da phosphorus, yana fitar da iskar gas, kuma yana lalata iskar oxygen.
• Zinc borate (ZnB)ku: 5ph
• Yana hana samuwar char, yana danne hayaki, kuma yana haɓaka kwanciyar char Layer.
• Aluminum hydroxide (ATH, hanyar sinadarai, 1.6-2.3 μm)ku: 20 ph
• Bazuwar Endothermic, jinkirin harshen wuta, da ingantacciyar tarwatsewa.

Additives:

• Hydroxyl silicone oil (2 phr, yana inganta iya aiki)
• Silica mai ƙura (10 phr, ƙarfafawa)
• Wakilin warkewa (Diperoxide, 0.8 phr)

Siffofin:

• Jimlar ɗaukar nauyi mai ɗaukar wuta ~ 50 phr, daidaita jinkirin harshen wuta da kaddarorin inji.
• Haɗin kai na Phosphorus-nitrogen (AHP + MCA) yana rage adadin da ake buƙata na kowane mai riƙe harshen wuta.

2. Tsarin Tsare Wuta na Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarfafawa

manufa: UL94 V-1 / V-0, dace da bakin ciki kayayyakin

Tushen Rubber: VMQ (100 phr)

Harshen wuta:

• Ammonium polyphosphate (APP, tushen phosphorus-nitrogen)ku: 12 ph
• Core na intumescent char samuwar, tare da mai kyau dacewa da silicone roba.
• Aluminum hypophosphite (AHP)ku: 8ph
• Ƙarin tushen phosphorus, yana rage APP hygroscopicity.
• Zinc borate (ZnB)ku: 5ph
• Haɓaka char catalysis da drip suppression.
• Aluminum hydroxide (ƙasa, 3-20 μm)ku: 15 ph
• Ƙarƙashin ƙaramar ƙaramar wuta mai ɗaukar nauyi, yana rage lodin APP.

Additives:

• Vinyl silicone man (3 phr, filastik)
• Silica da aka rigaya (15 phr, ƙarfafawa)
• Tsarin maganin Platinum (0.1% Pt)

Siffofin:

• Jimlar ɗaukar nauyi mai ɗaukar wuta ~ 40 phr, tasiri ga samfuran bakin ciki saboda intumescent inji.
• APP yana buƙatar jiyya ta sama (misali, wakilin haɗin gwiwar silane) don hana ƙaura.

3. Tsarin Ingantaccen Tsarin Aluminum Hydroxide Mai-Loading (Nau'in Mai Tasirin Kuɗi)

manufa: UL94 V-0, dace da lokacin farin ciki kayayyakin ko igiyoyi

Tushen Rubber: VMQ (100 phr)

Harshen wuta:

• Aluminum hydroxide (ATH, hanyar sinadarai, 1.6-2.3 μm)ku: 50 ph
• Primary harshen retardant, endothermic bazuwar, kananan barbashi size ga mafi alhẽri watsawa.
• Aluminum hypophosphite (AHP)ku: 5ph
• Yana haɓaka haɓakar haɓakar char, yana rage ɗaukar nauyin ATH.
• Zinc borate (ZnB)ku: 3 ph
• Hana shan taba da hana kyalli.

Additives:

• Wakilin haɗin gwiwar Silane (KH-550, 1 phr, yana haɓaka ƙirar ATH)
• Silica mai ƙura (8 phr, ƙarfafawa)
• Peroxide curing (DCP, 1 phr)

Siffofin:

• Jimlar ɗaukar nauyi mai ɗaukar wuta ~ 58 phr, amma ATH ya mamaye ingantaccen farashi.
• Karamin girman barbashi na ATH yana rage girman asarar ƙarfi.

4. Tsarin Aluminum Hypophosphite Standalone (AHP).

Aikace-aikace: UL94 V-1/V-2, ko kuma inda nitrogen ba a so (misali, guje wa kumfa MCA da ke shafar bayyanar).

Shawarwari Formulation:

• Tushen Rubber: VMQ (100 phr)
• Aluminum hypophosphite (AHP): 20-30 ph
• Babban abun ciki na phosphorus (40%); 20 phr yana ba da ~ 8% phosphorus don ainihin jinkirin harshen wuta.
• Don UL94 V-0, haɓaka zuwa 30 phr (zai iya lalata kaddarorin inji).
• Ƙarfafa FillerSilica (10-15 phr, yana kiyaye ƙarfi)
• Additives: Hydroxyl silicone mai (2 phr, aiwatarwa) + wakili na warkewa (Diperoxide ko tsarin platinum).

Siffofin:

• Ya dogara da yanayin jinkirin harshen wuta (samuwar char), yana inganta LOI sosai amma yana da iyakancewar hana hayaki.
• Babban lodi (> 25 phr) na iya taurin kayan; bayar da shawarar ƙara 3-5 phr ZnB don inganta ingancin char.

5. Aluminum Hypophosphite (AHP) + MCA Blend

Aikace-aikaceUL94 V-0, low loading tare da gas-lokaci harshen wuta retardant synergy.

Shawarwari Formulation:

• Tushen Rubber: VMQ (100 phr)
• Aluminum hypophosphite (AHP): 12-15 ph
• Tushen phosphorus don samuwar char.
• MCA: 8-10 ph
• Tushen Nitrogen don haɗin gwiwar PN, yana fitar da iskar gas (misali, NH₃) don murkushe yaduwar harshen wuta.
• Ƙarfafa FillerSilica (10 phr)
• Additives: Wakilin haɗin gwiwar Silane (1 phr, taimakon watsawa) + wakili mai warkarwa.

Siffofin:

• Jimlar lodi mai ɗaukar wuta ~ 20-25 phr, ƙasa da ƙasa sosai fiye da AHP.
• MCA yana rage buƙatun AHP amma yana iya ɗan ɗan shafan gaskiya (amfani da nano-MCA idan ana buƙatar tsabta).

Takaitacciyar Ƙirƙirar Ƙunƙarar Wuta

Shawarwari na Gwaji

1. Gwajin fifiko: AHP + MCA (15+10 phr). Idan V-0 ya samu, a hankali rage AHP (misali, 12+10 phr).
2. Gwajin AHP na tsaye: Fara a 20 phr, haɓaka ta 5 phr don kimanta LOI da UL94, saka idanu kayan aikin injiniya.
3. Magance shan taba: Ƙara 3-5 phr ZnB zuwa kowane tsari ba tare da lalata jinkirin harshen wuta ba.
4. Haɓaka farashi: Haɗa 10-15 phr ATH don rage farashi, kodayake jimlar ɗorawa na filler yana ƙaruwa.

Tsarin hadawa da aka ba da shawarar

(Don ƙarin kashi biyu-cure silicone roba)

1. Tushen Rubber Pre-Jiyya:

• Load da roba silicone (misali, 107 danko, vinyl silicone oil) a cikin mahaɗin duniya, degas ƙarƙashin injin in an buƙata.

1. Harshen Wardo:

• Matsalolin harshen wuta (misali, ATH, MH):
• Ƙara a cikin batches, pre-mixed tare da roba tushe (ƙananan hadawa, 10-15 min) don kauce wa agglomeration.
• bushe a 80-120 ° C idan hygroscopic.
• Matsalolin harshen wuta (misali, phosphates):
• Haɗa kai tsaye tare da man silicone, crosslinker, da sauransu, ƙarƙashin babban ƙarfi (minti 20-30).

1. Sauran Additives:

• A bi-a-bi-a-kai ƙara masu filaye (misali, silica), crosslinker (hydrosilane), mai kara kuzari (platinum), da masu hanawa.

1. homogenization:

• Ƙarin tace tarwatsawa ta amfani da niƙa mai juyi uku ko emulsifier mai ƙarfi mai ƙarfi (mahimmanci ga abubuwan ƙari na nano kamar CNTs).

1. Degassing & Tacewa:

• Vacuum degas (-0.095 MPa, 30 min), tace don buƙatun tsafta mai ƙarfi.

Mahimmin La'akari

• Zaɓin Ƙunƙarar Wuta:
• Halogen-free retardants (misali, ATH) yana buƙatar girman barbashi mai kyau (1-5 μm); wuce kima loading cutar da inji Properties.
• Silicone-tushen retardants (misali, phenyl silicone resins) suna ba da mafi kyawun dacewa amma a farashi mai girma.
• Sarrafa tsari:
• Zazzabi ≤ 60°C (yana hana gubar platinum catalyst ko waraka da wuri).
• Humidity ≤ 50% RH (yana gujewa halayen da ke tsakanin man silicone hydroxyl da masu kare wuta).

Kammalawa

• Samar da Jama'a: Pre-mix harshen retardants tare da tushe roba don dacewa.
• Abubuwan Bukatun Natsuwa: Haɗa yayin haɗuwa don rage haɗarin ajiya.
• Nano-Flame Retardant Systems: Warewa mai ƙarfi mai ƙarfi na wajibi don hana agglomeration.

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