Organic silicon high-thermal-conductivity flame-retardant pressure-sensitive adhesive and preparation method thereof
A technology of silicone rubber and silicone, applied in the direction of adhesives, polymer adhesive additives, non-polymer adhesive additives, etc., can solve the problems of environmental pollution by by-products, less variety, and low safety, and achieve improved Flame retardant and smoke suppression effect, convenient preparation steps, and effect of reducing transmission speed
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Embodiment 1
[0029] A silicone high thermal conductivity flame-retardant pressure-sensitive adhesive, including the following parts by weight:
[0030] 100 parts of silicone rubber, 70 parts of silicone resin, 5 parts of nano tungsten carbide, 5 parts of polyamide, 3 parts of methyl imidazole, 20 parts of tackifier, 30 parts of flame retardant, 1 part of condensation catalyst, 2 parts of crosslinking agent Parts, 45 parts filler and 80 parts solvent.
[0031] among them,
[0032] Silicone rubber is SD-33 methyl silicone rubber, silicone resin is organosiloxane resin; flame retardant is intumescent flame retardant; condensation catalyst is organotin compound; crosslinking agent is peroxide crosslinking agent; The filler is magnesium hydroxide; the solvent is an aromatic organic solvent.
[0033] Specifically, the following components are used: the flame retardant is ammonium polyphosphate; the condensation catalyst is dibutyltin dilaurate; and the crosslinking agent is benzoyl peroxide.
[0034] Wh...
Embodiment 2
[0047] A silicone high thermal conductivity flame-retardant pressure-sensitive adhesive, including the following parts by weight:
[0048] 120 parts of silicone rubber, 130 parts of silicone resin, 10 parts of nano tungsten carbide, 12 parts of polyamide, 10 parts of methyl imidazole, 40 parts of tackifier, 45 parts of flame retardant, 3 parts of condensation catalyst, 4 parts of crosslinking agent Parts, 60 parts of filler, 100 parts of solvent.
[0049] Among them, silicone rubber is SD-33 methyl silicone rubber, silicone resin is organosiloxane resin; flame retardant is intumescent flame retardant; condensation catalyst is organotin compound; crosslinking agent is peroxide crosslinking Agent; filler is aluminum hydroxide; solvent is aromatic organic solvent.
[0050] More specifically, the flame retardant is ammonium polyphosphate; the condensation catalyst is dibutyltin tetraethoxysilane; the crosslinking agent is 2,4-dichlorobenzoyl peroxide; and the solvent is toluene or xylen...
Embodiment 3
[0053] A silicone high thermal conductivity flame-retardant pressure-sensitive adhesive, including the following parts by weight:
[0054] 110 parts of silicone rubber, 100 parts of silicone resin, 7.5 parts of nano tungsten carbide, 8.5 parts of polyamide, 6.5 parts of methyl imidazole, 30 parts of tackifier, 37.5 parts of flame retardant, 2 parts of condensation catalyst, 3 parts of crosslinking agent Parts, 50 parts filler, 90 parts solvent.
[0055] Among them, silicone rubber is SD-33 methyl silicone rubber, silicone resin is organosiloxane resin; flame retardant is intumescent flame retardant; condensation catalyst is organotin compound; crosslinking agent is peroxide crosslinking Agent; filler is titanium dioxide; solvent is aromatic organic solvent.
[0056] More specifically, the flame retardant is ammonium polyphosphate; the condensation catalyst is dibutyltin tetraethoxysilane; the crosslinking agent is benzoyl peroxide; and the solvent is toluene.
[0057] The preparation...
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