Humic acid modified reinforced phenolic foam material

Abstract

The invention provides a humic acid modified reinforced phenolic foam material, which includes, by weight, 40-50% of volatile phenolic resin, 0.1-1% of ethyl methacrylate, 0.1-3% of epoxy propane, 0.1-3% of kaolin, 0.1-3% of a dispersant, and 40-60% of halloysite nanotubes. The phenolic foam material has high toughness, is heat-resistant and is free of scaling.

Description

technical field [0001] The invention belongs to the technical field of material science, and in particular relates to a humic acid modified reinforced phenolic foam material. Background technique [0002] Phenolic foam is prepared by adding foaming agent, curing agent and other modifying reagents to the liquid thermal solid phase phenolic resin obtained by polycondensation of formaldehyde and phenol under alkali-catalyzed conditions, and foaming by controlling the reaction temperature. In the application field of building exterior wall insulation materials, phenolic foam has excellent combustion resistance, high temperature resistance and thermal insulation properties, and has become a research hotspot and the preferred material for use. [0003] However, the brittleness of phenolic foam is large, and it is easy to drop slag, resulting in poor mechanical strength. In order to further improve the heat resistance of phenolic foam, it is necessary to modify the phenolic resin t...

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Problems solved by technology

[0003] However, the brittleness of phenolic foam is large, and it is easy to drop slag, resulting in poor mechanical strength. In order to further improve the heat resistance of phenolic foam, it is necessary to modify the phenolic resin to prepare phenolic foam with excellent mechanical properties and heat resistance.

At present, there is no relevant report on the application of humic acid in the modification of phenolic foam materials