A preparation method of continuous height-fixed thickness phenolic foam filled honeycomb material

Abstract

The invention relates to a preparation method of a continuous phenolic-foam-filled honeycomb material with fixed height and thickness. The preparation method comprises the following steps: (1) preparing a phenolic resin glue liquid uniformly mixing high-performance phenolic resin, a foaming agent, an additive and a curing agent in a weight ratio of 100 to (10-50) to (10-50) to (20-40); (2) gumming: uniformly coating a surface layer of a honeycomb material with the phenolic resin glue liquid by virtue of a gumming device; and (3) curing: sending the honeycomb material coated with the phenolic resin glue liquid into a drying oven, and curing and forming, so as to obtain the phenolic-foam-filled honeycomb material. Compared with the prior art, the honeycomb material prepared by virtue of the preparation method has the advantages that the thermal insulation performance is good, the application range is relatively wide, meanwhile, the continuous production is realized, and the production cost is lowered as much as possible when the quality is guaranteed.

Description

technical field [0001] The invention relates to the field of chemical materials, in particular to a method for preparing a continuous height-fixed thickness phenolic foam-filled honeycomb material. Background technique [0002] Honeycomb structure composite materials have the characteristics of light weight, fire prevention, corrosion resistance, and sound insulation, and are widely used in architectural decoration, furniture, energy, railways, automobiles, ships and other fields. [0003] Chinese patent CN 202882155 U discloses a phenolic honeycomb heat insulation and sound insulation board. The honeycomb hole is filled with phenolic resin foam filler to overcome the disadvantages of strong brittleness and high cost of the phenolic board. After the paper honeycomb core is densely covered by phenolic foam, it can Solve the shortcomings of the paper honeycomb core not being waterproof, moisture-proof, and fire-proof. Chinese patent CN 102199308 A discloses a method for manuf...

AI Technical Summary

Problems solved by technology

[0003] Chinese patent CN 202882155 U discloses a phenolic honeycomb heat insulation and sound insulation board. Filling the honeycomb hole with phenolic resin foaming filler overcomes the shortcomings of strong brittleness and high cost of the phenolic board, and the paper honeycomb core is densely covered by phenolic foam. Solve the shortcomings of paper honeycomb cores that are not waterproof, moisture-proof, and fire-proof

There are not many reports on the improvement of the thermal insulation of honeycomb materials, and the thermal insulation of honeycomb materials is generally poor, which greatly limits its application