Graphene composite flame-retardant material and preparation method thereof
A graphene composite, flame-retardant material technology, applied in the direction of graphene, nano-carbon, etc., can solve the problems of large environmental pollution, general flame-retardant effect of materials, and large amount of smoke generated.
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Embodiment 1
[0045] A graphene composite flame-retardant material, comprising the following raw materials in parts by weight: 30 parts of modified graphene and 10 parts of flame-retardant additives;
[0046] The graphene composite flame retardant material is made by the following steps:
[0047] Step S1: Add modified graphene and deionized water into the reactor, stir at a speed of 300r / min and a temperature of 35°C, add flame retardant additives and 1-hydroxybenzotriazole, and carry out Stir for 2h to obtain a mixed solution;
[0048] Step S2: Ultrasonicate the mixture obtained in Step S1 at a frequency of 3 MHz for 10 minutes, filter and remove the filtrate, and dry the filter cake at a temperature of 80°C for 2 hours to obtain a graphene composite Flame retardant material.
[0049] Described modified graphene is made by following steps:
[0050] Step A1: Add concentrated sulfuric acid into the reaction kettle, stir at a speed of 150r / min, add graphite and sodium nitrate at a temperat...
Embodiment 2
[0060] A graphene composite flame-retardant material, comprising the following raw materials in parts by weight: 40 parts of modified graphene and 13 parts of flame-retardant additives;
[0061] The graphene composite flame retardant material is made by the following steps:
[0062] Step S1: Add modified graphene and deionized water into the reactor, stir at a speed of 300r / min and a temperature of 40°C, add flame retardant additives and 1-hydroxybenzotriazole, and carry out Stir for 2h to obtain a mixed solution;
[0063] Step S2: Ultrasonicate the mixed liquid obtained in Step S1 at a frequency of 5 MHz for 10 minutes, filter and remove the filtrate, and dry the filter cake at a temperature of 80° C. for 3 hours to obtain a graphene composite Flame retardant material.
[0064] Described modified graphene is made by following steps:
[0065] Step A1: Add concentrated sulfuric acid into the reaction kettle, stir at a speed of 150r / min, add graphite and sodium nitrate at a t...
Embodiment 3
[0075] A graphene composite flame retardant material, comprising the following raw materials in parts by weight: 50 parts of modified graphene and 15 parts of flame retardant additives;
[0076] The graphene composite flame retardant material is made by the following steps:
[0077] Step S1: Add modified graphene and deionized water into the reaction kettle, stir at a speed of 500r / min and a temperature of 40°C, add flame retardant additives and 1-hydroxybenzotriazole, and carry out Stir for 3h to obtain a mixed solution;
[0078] Step S2: Ultrasonicate the mixed liquid obtained in Step S1 at a frequency of 5 MHz for 15 minutes, filter and remove the filtrate, and dry the filter cake at a temperature of 80° C. for 3 hours to obtain a graphene composite Flame retardant material.
[0079] Described modified graphene is made by following steps:
[0080] Step A1: Add concentrated sulfuric acid into the reaction kettle, stir at a speed of 200r / min, add graphite and sodium nitrat...
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