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Pumice phenolic resin compound foam material and preparation method thereof

A phenolic resin and composite foam technology, applied in the field of thermal insulation materials, can solve the problems of poor thermal insulation performance of inorganic thermal insulation materials, low strength of phenolic foam materials, poor flame retardant performance, etc. The effect of improving the chalking phenomenon

Active Publication Date: 2017-04-26
HEBEI INSTITUTE OF ARCHITECTURE AND CIVIL ENGINEERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by this invention is to provide a kind of pumice phenolic resin composite foam material and preparation method thereof, this new pumice phenolic resin composite foam material solves the problems of low strength, poor toughness and poor flame retardancy of existing phenolic foam materials Technical problems, and also solve the problems of poor thermal insulation performance and poor water resistance of existing inorganic thermal insulation materials

Method used

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  • Pumice phenolic resin compound foam material and preparation method thereof
  • Pumice phenolic resin compound foam material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0040] A pumice phenolic resin composite foam material, calculated in parts by weight, each part by weight corresponds to 1g, and weighs the following raw materials:

[0041] 80 parts of phenolic resin, 40 parts of pumice powder, 3 parts of surfactant, 5.5 parts of foaming agent, 4 parts of curing agent;

[0042] Wherein, the phenolic resin is prepared from phenol, paraformaldehyde and alkaline catalyst solution in a mass ratio of 100:60:1.5.

[0043] The above-mentioned basic catalyst is a sodium hydroxide solution, preferably an aqueous sodium hydroxide solution with a mass fraction of 20%. The above-mentioned phenolic resin has a solid content of 80%-85%, a viscosity of 2-3 Pa.S at 25°C, a mass fraction of free aldehyde of 1%-2%, and a pH value of 7-9. The above-mentioned surfactant is one of silicone-based surfactants or Tween-based surfactants. Tween-80 is preferred. Above-mentioned blowing agent is petroleum ether, n-pentane, n-hexane, isopentane or cyclopentane. Pet...

Embodiment 2

[0057] A pumice phenolic resin composite foam material, calculated in parts by weight, each part by weight corresponds to 1g, and weighs the following raw materials:

[0058] 120 parts of phenolic resin, 50 parts of pumice powder, 5 parts of surfactant, 8.5 parts of foaming agent, 6 parts of curing agent;

[0059] Wherein, the phenolic resin is prepared from phenol, paraformaldehyde and alkaline catalyst solution in a mass ratio of 90:50:2.5.

[0060] The above-mentioned basic catalyst is a sodium hydroxide solution, preferably an aqueous sodium hydroxide solution with a mass fraction of 20%. The above-mentioned phenolic resin has a solid content of 80%-85%, a viscosity of 2-3 Pa.S at 25°C, a mass fraction of free aldehyde of 1%-2%, and a pH value of 7-9. The above-mentioned surfactant is one of silicone-based surfactants or Tween-based surfactants. Tween-80 is preferred. Above-mentioned blowing agent is petroleum ether, n-pentane, n-hexane, isopentane or cyclopentane. Pet...

Embodiment 3

[0074] A pumice phenolic resin composite foam material, calculated in parts by weight, each part by weight corresponds to 1g, and weighs the following raw materials:

[0075] 100 parts of phenolic resin, 45 parts of pumice powder, 4 parts of surfactant, 7 parts of foaming agent, 5 parts of curing agent;

[0076] Wherein, the phenolic resin is prepared from phenol, paraformaldehyde and alkaline catalyst solution in a mass ratio of 95:55:2.

[0077] The above-mentioned basic catalyst is a sodium hydroxide solution, preferably an aqueous sodium hydroxide solution with a mass fraction of 20%. The above-mentioned phenolic resin has a solid content of 80%-85%, a viscosity of 2-3 Pa.S at 25°C, a mass fraction of free aldehyde of 1%-2%, and a pH value of 7-9. The above-mentioned surfactant is one of silicone-based surfactants or Tween-based surfactants. Tween-80 is preferred. Above-mentioned blowing agent is petroleum ether, n-pentane, n-hexane, isopentane or cyclopentane. Petrole...

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Abstract

The invention discloses a pumice phenolic resin compound foam material and a preparation method thereof. The foam material is prepared from the following raw materials in parts by weight: 80 to 120 parts of phenolic resin, 40 to 50 parts of pumice powder, 3 to 5 parts of a surfactant, 5.5 to 8.5 parts of a foaming agent and 4 to 6 parts of a solidifier, wherein the phenolic resin is prepared from phenol, paraformaldehyde and an alkaline catalyst according to a mass ratio of (100 to 90): (60 to 50): (1.5 to 2.5). The pumice phenolic resin compound foam material disclosed by the invention has the following beneficial effects that according to the compound foam material, by the combination of an inorganic matter and an organic matter, the pulverization phenomenon of the material is greatly improved, and the toughness and the flame retardatncy are enhanced; the pumice powder is physically scattered into the compound foam material, so that the material is homogenized, and the compression strength is enhanced; and the preparation method is simple, the manufacturing cost is low, and batch production can be realized.

Description

technical field [0001] The invention relates to the technical field of thermal insulation materials, in particular to a pumice phenolic resin composite foam material and a preparation method thereof. Background technique [0002] Pumice, also known as pumice or pumice, is a porous, light glassy acidic volcanic extrusive rock. The surface of pumice is rough, with many pores, light weight, small bulk density, high strength, acid and alkali resistance, and corrosion resistance. %, the water absorption rate is 50-60%. Pumice powder is an active functional filler, which can be used as a functional filler in plastics, rubber and other industries to replace light calcium silicate and improve the strength of plastic products. It can also be used as refractory products, fillers for refractory materials, etc. [0003] Phenolic resins are divided into thermoplastic phenolic resins and thermosetting phenolic resins due to the different catalysts used. Because of their low smoke, low ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/10C08L71/02C08K7/26C08K3/32C08J9/14
CPCC08J9/141C08J2203/14C08J2203/182C08J2361/06C08K2201/003C08L61/06C08L2201/02C08L2203/14C08L71/02C08K7/26C08K2003/329
Inventor 麻建锁周苗苗白润山蔡焕琴杨得卉张乐乐
Owner HEBEI INSTITUTE OF ARCHITECTURE AND CIVIL ENGINEERING
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