qee cov qauv siv roj hmab silicone raws li cov tshuaj tiv thaiv hluav taws uas tsis muaj halogen

Nov yog tsib daim qauv tsim roj hmab silicone uas siv cov tshuaj tua hluav taws uas tsis muaj halogen, suav nrog cov tshuaj tua hluav taws uas tus neeg siv khoom muab (aluminum hypophosphite, zinc borate, MCA, aluminium hydroxide, thiab ammonium polyphosphate). Cov qauv no lub hom phiaj yog kom ntseeg tau tias muaj kev tiv thaiv hluav taws thaum txo cov khoom ntxiv kom txo qhov cuam tshuam rau cov khoom siv kho tshuab ntawm cov roj hmab silicone.

1. Phosphorus-Nitrogen Synergistic Flame Retardant System (Hom Ua Hluav Taws Xob Zoo Tshaj Plaws)

Lub hom phiajUL94 V-0, pa luam yeeb tsawg, tsim nyog rau kev siv kub nruab nrab mus rau kub siab

Roj Hmab Hauv Paus: Methyl vinyl silicone roj hmab (VMQ, 100 phr)

Cov Tshuaj Tiv Thaiv Hluav Taws:

• Aluminium hypophosphite (AHP, phosphorus-based): 15 phr
• Muab cov phosphorus zoo, txhawb kev tsim cov char, thiab tiv thaiv kev kub hnyiab hauv cov pa roj.
• Melamine cyanurate (MCA, nitrogen-based): 10 phr
• Ua ke nrog phosphorus, tso tawm cov pa roj inert, thiab dilutes oxygen.
• Zinc borate (ZnB): 5 phr
• Ua rau cov pa luam yeeb tsim tau cov hluav taws xob, txo cov pa luam yeeb, thiab ua kom cov txheej hluav taws xob ruaj khov.
• Aluminium hydroxide (ATH, txoj kev siv tshuaj lom neeg, 1.6–2.3 μm): 20 phr
• Kev rhuav tshem endothermic, kev tiv thaiv hluav taws xob, thiab kev txhim kho dispersibility.

Cov khoom ntxiv:

• Hydroxyl silicone roj (2 phr, txhim kho kev ua haujlwm)
• Fumed silica (10 phr, kev txhawb zog)
• Tus neeg sawv cev kho (Diperoxide, 0.8 phr)

Cov yam ntxwv:

• Tag nrho cov hluav taws kub retardant loading ~ 50 phr, sib npaug hluav taws kub retardancy thiab cov khoom siv kho tshuab.
• Kev sib koom ua ke ntawm phosphorus-nitrogen (AHP + MCA) txo cov khoom siv hluav taws xob uas xav tau.

2. Lub Tshuab Tiv Thaiv Hluav Taws Kub Intumescent (Hom Qis-Loading)

Lub hom phiajUL94 V-1/V-0, tsim nyog rau cov khoom nyias nyias

Roj Hmab Hauv Paus: VMQ (100 phr)

Cov Tshuaj Tiv Thaiv Hluav Taws:

• Ammonium polyphosphate (APP, phosphorus-nitrogen-based): 12 phr
• Lub hauv paus ntawm cov hluav taws xob intumescent, nrog kev sib raug zoo nrog cov roj hmab silicone.
• Aluminium hypophosphite (AHP): 8 phr
• Cov phosphorus ntxiv, txo APP hygroscopicity.
• Zinc borate (ZnB): 5 phr
• Synergistic char catalysis thiab drip suppression.
• Aluminium hydroxide (av, 3–20 μm): 15 phr
• Cov khoom siv hluav taws xob pheej yig, txo cov khoom thauj APP.

Cov khoom ntxiv:

• Cov roj silicone vinyl (3 phr, plasticization)
• Precipitated silica (15 phr, kev txhawb zog)
• Platinum kho tshuab (0.1% Pt)

Cov yam ntxwv:

• Tag nrho cov hluav taws kub hnyiab ~ 40 phr, zoo rau cov khoom nyias vim yog lub tshuab intumescent.
• APP xav tau kev kho qhov chaw (piv txwv li, tus neeg sawv cev silane coupling) kom tiv thaiv kev tsiv teb tsaws chaw.

3. Lub Tshuab Ua Haujlwm Zoo Tshaj Plaws rau Kev Thauj Khoom Aluminium Hydroxide (Hom Pheej Yig)

Lub hom phiajUL94 V-0, tsim nyog rau cov khoom tuab lossis cov cables

Roj Hmab Hauv Paus: VMQ (100 phr)

Cov Tshuaj Tiv Thaiv Hluav Taws:

• Aluminium hydroxide (ATH, txoj kev siv tshuaj lom neeg, 1.6–2.3 μm): 50 phr
• Cov nplaim taws tseem ceeb, kev rhuav tshem endothermic, qhov me me rau qhov sib kis zoo dua.
• Aluminium hypophosphite (AHP): 5 phr
• Txhim kho kev ua haujlwm ntawm cov char, txo cov ATH loading.
• Zinc borate (ZnB): 3 phr
• Kev tswj pa luam yeeb thiab tiv thaiv kev ci ntsa iab.

Cov khoom ntxiv:

• Tus neeg sawv cev sib txuas Silane (KH-550, 1 phr, txhim kho ATH interface)
• Fumed silica (8 phr, kev txhawb zog)
• Kev kho mob nrog peroxide (DCP, 1 phr)

Cov yam ntxwv:

• Tag nrho cov khoom siv hluav taws kub ~ 58 phr, tab sis ATH tseem ceeb rau kev siv nyiaj tsawg.
• Qhov me me ntawm ATH particle txo qhov poob ntawm lub zog tensile.

4. Lub Tshuab Aluminium Hypophosphite (AHP) uas sawv ntawm nws tus kheej

Daim Ntawv ThovUL94 V-1/V-2, lossis qhov twg tsis xav tau cov nitrogen (piv txwv li, zam kev ua npuas dej MCA uas cuam tshuam rau qhov zoo li).

Cov Qauv Pom Zoo:

• Roj Hmab Hauv Paus: VMQ (100 phr)
• Aluminium hypophosphite (AHP): 20–30 teev
• Cov phosphorus ntau (40%); 20 phr muab ~ 8% phosphorus rau kev tiv thaiv hluav taws yooj yim.
• Rau UL94 V-0, nce mus txog 30 phr (tej zaum yuav ua rau cov khoom siv tsis zoo).
• Cov Khoom Siv Txhawb NqaSilica (10–15 phr, tswj tau lub zog)
• Cov khoom ntxiv: Hydroxyl silicone roj (2 phr, processability) + curing agent (Diperoxide los yog platinum system).

Cov yam ntxwv:

• Nyob ntawm qhov ua kom nplaim taws tsis sib zog (char tsim), txhim kho LOI zoo heev tab sis muaj kev tswj pa luam yeeb tsawg.
• Kev thauj khoom ntau dhau (> 25 phr) yuav ua rau cov khoom tawv; pom zoo kom ntxiv 3–5 phr ZnB kom txhim kho qhov zoo ntawm cov char.

5. Aluminium Hypophosphite (AHP) + MCA Blend

Daim Ntawv ThovUL94 V-0, kev thauj khoom tsawg nrog cov pa roj-theem hluav taws kub synergy.

Cov Qauv Pom Zoo:

• Roj Hmab Hauv Paus: VMQ (100 phr)
• Aluminium hypophosphite (AHP): 12–15 teev sawv ntxov
• Phosphorus yog qhov chaw rau kev tsim cov char.
• MCA: 8–10 teev
• Qhov chaw nitrogen rau PN synergy, tso tawm cov pa roj inert (piv txwv li, NH₃) los tswj kev sib kis ntawm nplaim taws.
• Cov Khoom Siv Txhawb NqaSilica (10 phr)
• Cov khoom ntxivTus neeg sawv cev sib txuas Silane (1 phr, kev pab cuam dispersion) + tus neeg sawv cev kho.

Cov yam ntxwv:

• Tag nrho cov khoom siv tiv thaiv hluav taws kub ~ 20–25 phr, qis dua li AHP uas sawv ntsug.
• MCA txo qhov yuav tsum tau ua AHP tab sis tej zaum yuav cuam tshuam me ntsis rau qhov pom tseeb (siv nano-MCA yog tias xav tau qhov pom tseeb).

Cov Lus Qhia Txog Kev Tsim Cov Tshuaj Tiv Thaiv Hluav Taws

Cov Lus Qhia Txog Kev Sim

1. Kev Ntsuas Ua Ntej: AHP + MCA (15+10 phr). Yog tias V-0 ua tiav, maj mam txo AHP (piv txwv li, 12+10 phr).
2. Kev Ntsuas AHP Ib LeegPib ntawm 20 phr, nce ntxiv 5 phr los ntsuam xyuas LOI thiab UL94, saib xyuas cov khoom siv kho tshuab.
3. Kev Tshem Tawm Pa Luam YeebNtxiv 3–5 phr ZnB rau hauv txhua yam tshuaj yam tsis muaj kev cuam tshuam rau kev ua kom tsis txhob muaj hluav taws.
4. Kev Txhim Kho Tus NqiSiv 10–15 phr ATH los txo tus nqi, txawm hais tias tag nrho cov khoom ntim khoom nce ntxiv.

Cov Txheej Txheem Sib Tov Pom Zoo

(Rau ob feem ntxiv-kho cov roj hmab silicone)

1. Kev Kho Mob Ua Ntej Rau Roj Hmab:

• Muab cov roj hmab silicone (piv txwv li, 107 gum, vinyl silicone roj) rau hauv lub tshuab sib tov planetary, degas hauv qab lub tshuab nqus tsev yog tias xav tau.

1. Ntxiv nplaim taws:

• Cov tshuaj tua hluav taws uas muaj hmoov (piv txwv li, ATH, MH):
• Ntxiv ua pawg, ua ntej sib tov nrog cov roj hmab hauv paus (sib tov qeeb qeeb, 10-15 feeb) kom tsis txhob sib sau ua ke.
• Qhuav ntawm 80-120 ° C yog tias hygroscopic.
• Cov tshuaj ua kom nplaim taws tsis kub (piv txwv li, phosphates):
• Sib tov ncaj qha nrog roj silicone, crosslinker, thiab lwm yam, nyob rau hauv high shear (20–30 feeb).

1. Lwm Cov Khoom Ntxiv:

• Ntxiv cov khoom sau (piv txwv li, silica), crosslinker (hydrosilane), catalyst (platinum), thiab inhibitors ua ntu zus.

1. Kev sib xyaw ua ke:

• Siv lub tshuab peb-yob los yog lub tshuab emulsifier siab (qhov tseem ceeb rau cov khoom siv nano-additives zoo li CNTs) los ua kom cov dispersion zoo dua.

1. Kev Tshem Tawm thiab Kev Lim Dej:

• Lub tshuab nqus tsev degas (-0.095 MPa, 30 feeb), lim rau qhov yuav tsum tau ua kom huv si.

Cov Kev Xav Tseem Ceeb

• Kev Xaiv Hluav Taws Kub:
• Cov tshuaj retardants uas tsis muaj halogen (piv txwv li, ATH) xav tau cov khoom me me (1–5 μm); kev thauj khoom ntau dhau ua rau puas tsuaj rau cov khoom siv kho tshuab.
• Cov tshuaj retardants ua los ntawm silicone (piv txwv li, phenyl silicone resins) muaj kev sib raug zoo dua tab sis tus nqi siab dua.
• Kev Tswj Xyuas Txheej Txheem:
• Kub ≤ 60 ° C (tiv thaiv platinum catalyst lom lossis kho ua ntej lub sijhawm).
• Av noo ≤ 50% RH (zam kev tsis sib haum xeeb ntawm cov roj silicone hydroxyl thiab cov tshuaj tua hluav taws).

Xaus lus

• Kev Tsim Khoom Loj: Sib tov cov tshuaj tiv thaiv hluav taws ua ntej nrog cov roj hmab hauv paus kom ua haujlwm tau zoo.
• Cov Kev Xav Tau Ruaj Khov SiabSib tov thaum lub sijhawm sib xyaw kom txo qis kev pheej hmoo ntawm kev khaws cia.
• Cov Tshuab Tiv Thaiv Hluav Taws Xob Nano: Yuav tsum muaj kev sib kis high-shear kom tiv thaiv kev sib sau ua ke.

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