Novel porous foam material and preparation method thereof

Abstract

The invention discloses a novel porous foam material and a preparation method thereof. The porous foam material comprises the following raw material components in parts by weight: 100 parts of dicyclopentadiene, 0.1-3 parts of an anti-aging agent, 0.1-3 parts of an ultraviolet absorbent, 0.2-5 parts of a tackifier, and a grubbs catalyst with the molar ratio of the grubbs catalyst to the dicyclopentadiene being 1 / 100000-1 / 500. The preparation method comprises the following steps: dissolving the anti-aging agent into dicyclopentadiene monomer at room temperature; dissolving the ultraviolet absorbent into the dicyclopentadiene monomer in the first step at room temperature; dissolving the tackifier into the dicyclopentadiene monomer obtained in the second step at room temperature; adding a certain proportion of catalyst solution into the dicyclopentadiene monomer; and pouring the obtained mixed solution into a mold, performing suction treatment for a period of time, carrying out vacuum insulation molding, cooling the molded product, and demolding the product to obtain the open-cell foam material. The obtained foam material has the properties of high strength, low density, heat insulation and sound insulation; the production process is simple, environment-friendly and convenient to operate.

Description

technical field [0001] The invention relates to a foamed plastic, in particular to a novel open-cell foamed material and a preparation method thereof. Background technique [0002] At present, the concept of lightweight materials has attracted more and more attention. For polymer materials, a cell structure is usually introduced into the material to replace the original solid polymer part with air bubbles, so as to achieve the purpose of reducing the density of the material. Polymer foam materials refer to microporous materials based on polymers (plastics, rubbers, elastomers or natural polymer materials) with countless bubbles inside them, and can also be regarded as composite materials with gas as filler. Open-celled polymer foam materials have a wide range of applications in biology, medical, environmental engineering and other fields, and can be used in tissue engineering, solvent extraction, thermal insulation, sound absorption, water retention, oil absorption, and dru...

AI Technical Summary

Problems solved by technology

[0005] 1) The preparation process is complicated and the price is high;

[0006] 2) Need to use a large amount of solvents, causing pollution to the environment;

[0007] 3) Tungsten-based catalysts are often used, which requires strict test conditions;

[0008] 4) The performance of the prepared porous material drops significantly, and the high-strength characteristics of the PDCPD material cannot be highlighted;

[0010] Prior patent applications CN 104327436 A and CN 107722243 A have both announced the preparation method of polydicyclopentadiene foam material, which can reduce the density of the material on the basis of ensuring the high strength of the raw material; both use chemical foaming agent, the method developed The solubility of the foaming agent is relatively poor, and the expansion ratio is not easy to adjust

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