Graphene rubber macromolecular flame-retardant composite foaming material and preparation method thereof

Abstract

The invention discloses a graphene rubber macromolecular flame-retardant composite foaming material and a preparation method thereof. The graphene rubber macromolecular flame-retardant composite foaming material comprises the following raw materials in parts by weight: 50-60 parts of natural rubber, 13-17 parts of butadiene rubber, 4-6 parts of ethylene propylene diene monomer, 4-6 parts of whitecarbon black, 14-17 parts of a flame retardant, 1.8-2.4 parts of graphene, 4-6 parts of a nano medium, 2-3 parts of zinc oxide, 2.5-4 parts of a heat stabilizer, 2-2.4 parts of a cross-linking agent,3-4 parts of a flow aid and 2-2.4 parts of a foaming agent, wherein the flame retardant is a mixture of zinc diethylphosphinate and triphenyl phosphate. The flame-retardant test of the graphene rubbermacromolecular flame-retardant composite foaming material reaches a UL-94V0 level, and the oxygen index of the graphene rubber macromolecular flame-retardant composite foaming material is far higherthan that of a common natural rubber foam material; the density of the graphene rubber macromolecular flame-retardant composite foaming material is lower than that of a common natural rubber foaming material, and the graphene rubber macromolecular flame-retardant composite foaming material is ultra-light; and moreover, the tensile strength of the graphene rubber macromolecular flame-retardant composite foaming material is greatly superior to that of a common natural rubber foaming material, the mechanical property is good, and the ultra-light property and the excellent mechanical property arewell considered.

Description

technical field [0001] The invention relates to the technical field of rubber products, in particular to a graphene rubber polymer flame-retardant composite foaming material and a preparation method thereof. Background technique [0002] Natural rubber (NR) is a natural polymer compound with cis-1,4-polyisoprene as the main component, and 91% to 94% of its components are rubber hydrocarbons (cis-1,4-polyisoprene Diene), and the rest are non-rubber substances such as protein, fatty acid, ash, sugar, etc. It is generally flake solid, relative density 0.94, refractive index 1.522, elastic modulus 2-4MPa, softens at 130-140°C, sticky and soft at 150-160°C, and begins to degrade at 200°C. It has high elasticity at room temperature, slightly plastic, and crystallizes and hardens at low temperature. It has good alkali resistance, but not strong acid resistance. Insoluble in water, lower ketones and alcohols, can swell in non-polar solvents such as chloroform, carbon tetrachlorid...

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Problems solved by technology

[0007] 1. The flame retardancy is poor, which cannot meet the requirements for flame retardancy in certain application fields, or the flame retardant containing halogen is used, which is not environmentally friendly, and the flame retardancy effect is not good;

[0008] 2. Either the quality is not light enough, it looks bulky, and cannot meet the needs of ultra-light use; or the mechanical properties such as tensile strength and elongation at break after foaming are poor

[0009] In short, ultra-lightweight and excellent mechanical properties cannot be taken into account

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