A kind of flame-retardant nano-composite rubber material and preparation method thereof

Abstract

The invention discloses a flame-retardant nano-composite rubber material and a preparation method thereof. The raw materials are respectively composed of 60% of modified rubber matrix, 25% of nano-powder, 10% of surfactant and 5% of The composition of the dispersant; in the present invention, the nano-powder and a part of the surfactant are sprayed against each other under the auxiliary action of pure air, and are dried to form a layer of coating to wrap the nano-powder, and then it is mixed with the The other part of surfactant is blended evenly, so that the affinity of the nano-powder is improved, and the effect of each raw material constituting the nano-powder can be more clearly displayed, and then it is combined with the dispersant, pressed glue and cut The modified rubber matrix after the glue is blended, then dried and kneaded to make it have proper fluidity and processability, and based on the synergistic flame retardancy and excellent dispersion and bonding capabilities of the two, the flame retardancy of the product is achieved. The effect is significantly improved and is a permanent flame retardant.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a flame-retardant nano-composite rubber material and a preparation method thereof. Background technique [0002] Nano-composite rubber materials use rubber as the continuous phase, nano-sized metals, semiconductors, rigid particles, inorganic particles, fibers or carbon nanotubes as the dispersed phase, and mix the two evenly in an appropriate way to form a composite material. The phase contains a nano-sized composite system, that is, the system material is often called a nanocomposite rubber material. [0003] However, in the existing nanocomposite rubber materials, there are problems of weak flame retardant ability and single flame retardant effect, and the flame retardant effect will gradually decline with the passage of time, and it is difficult to achieve permanent flame retardant effect; and in the present In the preparation process of some nano-composite rubber m...

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Problems solved by technology

[0007] In the present invention, nanopowder and a portion of surfactant are sprayed opposite to each other with the aid of circulating pure air, so that the object-like mist curtain of the two is fully contacted, and then dried to form a layer of coating. The film wraps the nano-powder, and after one part of the surfactant is sprayed, the other part of the surfactant is introduced and stirred together, so that the nano-powder formed on the outside is evenly dispersed in the surfactant, which is helpful for the subsequent The homogeneous mixing and fusion between the nano powder and the modified rubber matrix greatly reduces the energy consumption and time during blending, and effectively solves the problem that the combination of rubber and nano raw materials is poor and it is difficult to achieve uniform dispersion. To a certain extent, the problem of not being able to exert one's own ability ideally;

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