Halogen-free flame-retardant CR foam and preparation method thereof
A foam and solid flame retardant technology, applied in the field of foam materials, can solve the problems of high flame retardant addition, affecting foam uniformity and mechanical strength, poor dispersion uniformity, etc., to achieve good flame retardant performance, The effect of good foaming uniformity and mechanical strength
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Embodiment 1
[0040] A halogen-free flame-retardant CR foam in this embodiment is prepared from the following components by weight:
[0041] Neoprene 50 parts;
[0042] 4 parts of vulcanizing agent zinc oxide;
[0043] 5 parts of filler carbon black, 7 parts of magnesium powder;
[0044] 12 parts of surface-modified IFR flame retardant;
[0045] 3 parts of liquid flame retardant bisphenol A bis(diphenyl phosphate);
[0046] 2 parts of plasticizer stearic acid;
[0047] 4 parts softening oil naphthenic oil;
[0048] 3 parts of foaming agent azodicarbonamide (ADC);
[0049] Antioxidant 10101 parts.
[0050] The preparation method is as follows:
[0051] (1) Add IFR powder (composed of acid source aluminum hypophosphite, gas source melamine and carbon source triazine macromolecular char-forming agent) into silica sol and stir to mix evenly. The amount of silica sol added is IFR in terms of solid content. 15% of the mass of the powder, and then adding vinyltrimethoxysilane of 1% of the ...
Embodiment 2
[0056] A halogen-free flame-retardant CR foam in this embodiment is prepared from the following components by weight:
[0057] 40 parts of neoprene;
[0058] 3 parts of vulcanizing agent zinc oxide;
[0059] 20 parts of filler magnesium powder;
[0060] 15 parts of surface-modified IFR flame retardants;
[0061] 2 parts of liquid flame retardant resorcinol (diphenyl phosphate);
[0062] 1 part of plasticizer stearic acid;
[0063] Softened naphthenic oil 6 parts;
[0064] 2 parts of foaming agent azodicarbonamide (ADC);
[0065] Antioxidant 10101 parts.
[0066] The preparation method is as follows:
[0067] (1) Add IFR powder (composed of acid source ammonium polyphosphate, gas source melamine polyphosphate and carbon source triazine macromolecular char forming agent) into the silica sol and mix evenly. It is calculated as 5% of the mass of the IFR powder, and then 0.2% of the mass of the IFR powder is added with vinyltrimethoxysilane for surface modification, dried in ...
Embodiment 3
[0072] A halogen-free flame-retardant CR foam in this embodiment is prepared from the following components by weight:
[0073] Neoprene 55 parts;
[0074] 3 parts of vulcanizing agent zinc oxide, 2 parts of magnesium oxide;
[0075] Filler magnesium strong powder 8, calcium carbonate 4 parts;
[0076] 8 parts of surface-modified IFR flame retardant;
[0077] 6 parts of liquid flame retardant triisopropylphenyl phosphate;
[0078] 2 parts of plasticizer stearic acid;
[0079] Softened naphthenic oil 3 parts;
[0080] 5 parts of foaming agent azodicarbonamide (ADC);
[0081] Antioxidant 10101 parts.
[0082] The preparation method is as follows:
[0083] (1) Add IFR powder (composed of acid source aluminum diethyl hypophosphite, gas source melamine polyphosphate and carbon source pentaerythritol) into the silica sol and mix evenly. The amount of silica sol added is IFR in terms of solid content. 30% of the mass of the powder, and then adding vinyltrimethoxysilane with 2%...
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