Elastomer reinforced by biomimetic modified graphene flame retardancy and preparation method
A technology of elastomer and graphene, which is applied in the field of elastomer and preparation enhanced by bionic modified graphene flame retardancy, can solve the problems of high price, environmental pollution, complex preparation process, etc., to improve compatibility and compensate for mechanical properties Destruction, crafting simple effects
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Embodiment 1
[0024] First, 100 ml of 1 mol / l Tris solution and 29.4 ml of 1 mol / liter of a mixed solution of hydrochloric acid and diluted to 10 liters formulated to pH = Tris-Cl buffer, 8.5, and 10 g multilayer dopamine graphene and 20 g of hydrochloric acid were added to the above buffer, sonicated and after stirring under ice-cooling for 1 hour, and then air was bubbled into the reaction solution from the polymerization reaction and dopamine occurs 24 hours at 25 ℃, by suction filtration, washed with deionized water, to give after lyophilization polydopamine coated multi-graphene, i.e. graphene bionic modified.
[0025] Ethylene --100 parts by weight of vinyl acetate elastomers, modified biomimetic graphene 3 parts by weight, intumescent flame retardant (ammonium polyphosphate: Pentaerythritol: melamine = 3: 1: 1) 27 parts by weight of an antioxidant and 0.5 parts by weight release into the mixer at 100 ℃ for 10 minutes obtained by the mixing of graphene modified biomimetic retardant re...
Embodiment 2
[0027] First, 100 ml of 0.5 mol / l Tris and 29.4 ml of a solution of 0.5 mol / liter of a mixed solution of hydrochloric acid and diluted to 5 liters formulated to pH = Tris-Cl buffer, 8.5, and 10 g multilayer graphene and 25 g of dopamine hydrochloride was added to the buffer, sonicated and after stirring under ice-cooling for 1 hour, and then air was bubbled into the reaction solution and dopamine from the polymerization reaction occurs for 36 hours at 20 ℃, by suction filtration, washed with deionized water, to give after lyophilization polydopamine coated multi-graphene, i.e. graphene bionic modified.
[0028] 100 parts by weight of a polyolefin elastomer, a modified multi-graphene biomimetic 5 parts by weight, intumescent flame retardant (piperazine polyphosphate: melamine - Ammonium polyphosphate: caged pentaerythritol phosphate = 3: 2: 1) 35 parts by weight and 0.5 parts by weight of an antioxidant into the mixer, to obtain graphene modified biomimetic retardant reinforced...
Embodiment 3
[0030] First, 100 ml of 1 mol / l Tris solution and 29.4 ml of 1 mol / liter of a mixed solution of hydrochloric acid and diluted to 10 liters formulated to pH = Tris-Cl buffer, 8.5, and 10 g multilayer dopamine graphene and 20 g of hydrochloric acid were added to the above buffer, sonicated and after stirring under ice-cooling for 1 hour, and then air was bubbled into the reaction solution and dopamine from the polymerization reaction occurs for 12 hours at 30 ℃, by suction filtration, washed with deionized water, to give after lyophilization polydopamine coated multi-graphene, i.e. graphene bionic modified.
[0031] 100 parts by weight of the polyurethane elastomer, the modified biomimetic 8 parts by weight of a multi-graphene, intumescent flame retardant (piperazine phosphate: Melamine - Ammonium polyphosphate: caged pentaerythritol phosphate = 3: 2: 1) and 20 parts by weight of an anti- agent 1 part by weight of oxygen into the mixer, to obtain graphene modified biomimetic ret...
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