Expansion-resistant graphene fiber nano building material and preparation technology thereof

Abstract

The invention discloses an expansion-resistant graphene fiber nano building material and a preparation technology thereof. The expansion-resistant graphene fiber nano building material comprises the following raw materials in parts by weight: 80-90 parts of an ethylene-vinyl acetate copolymer, 40-50 parts of high-density polyethylene, 20-30 parts of a nano active agent, 2-8 parts of a plasticizer and the like. According to the expansion-resistant graphene fiber nano building material and the preparation technology thereof, provided by the invention, added nitrile rubber modified phenolic resin is mixed with raw materials to form a mixture, the mixture is cured when heated, and under the action of methylene decomposed by urotropin, the molten resin quickly changes from a linear structure into a non-molten three-dimensional structure; by improving mechanical properties, the expansion-resistant graphene fiber nano building material has high temperature resistance and low expansion; structurally, fiber membrane layers with different diameters and porosities are prepared, nanographene among bonding layers improves the porosity and the specific surface area of a composite adsorption membrane and enhances the efficacy; through adoption of asphalt-based carbon fiber, mechanical properties of the expansion-resistant graphene fiber nano building material is enhanced, so that the expansion-resistant graphene fiber nano building material can greatly adsorb and remove harmful gas and dust substances in exhaust gas.

Description

technical field [0001] The invention relates to the technical field of nanomaterials, in particular to an expansion-resistant graphene fiber nano-building material and a preparation process thereof. Background technique [0002] Since the development of nanomaterials in the 1980s, it has attracted great attention from all over the world, and studies have shown that nano-flame retardants can improve the heat release rate (HRR) and peak heat release rate (PHRR) of the system at a low dosage. ) was significantly reduced. Due to the environmental hazards of halogen flame retardants, intumescent flame retardants and nano flame retardants have received more and more attention, and the combination of intumescent flame retardants and nanotechnology, adding MMT, LDH, CNT, POSS, etc., is increasing While improving the flame retardant efficiency, it can also improve the thermal stability, physical and mechanical properties of flame retardant polymer materials to varying degrees. Th...

AI Technical Summary

Problems solved by technology

The data show that the addition of MMT nanocomposite system leads to a general decrease in the HRR of intumescent flame retardant PP