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Modified environment-friendly phenolic aldehyde thermal insulation material and preparation method thereof
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A phenolic heat preservation and environmental protection technology, applied in the field of material preparation, can solve the problems of easy pulverization, low strength of phenolic foam insulation materials, metal corrosion, etc., and achieve the effects of reducing acidity, avoiding corrosion, and saving energy
Inactive Publication Date: 2015-03-04
BEIJING LIGAO WATERPROOF ENG CO LTD
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[0004] The invention provides a modified environment-friendly phenolic thermal insulation material and its preparation method, which solves the technical problem of low strength and easy pulverization of the phenolic foam thermal insulation material, and at the same time solves the technical problem of the corrosion of the phenolic foam thermal insulation material to metal
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Embodiment 1
[0044] Embodiment 1, this modified environment-friendly phenolic thermal insulation material, its raw material composition is as follows by weight ratio:
[0045] 100 parts of resole phenolic resin;
[0046] Sodium sulfite 10 parts;
[0047] 20 parts of phenolsulfonic acid solution;
[0048] 4 parts of stabilizer;
[0049] 2 parts of nanometer calcium carbonate;
[0050] 3 parts calcium sulfate whiskers;
[0051] 0.5 parts of nano aluminum hydroxide;
[0052] 0.5 parts of ethylene glycol;
[0053] Foaming agent 20 parts.
Embodiment 2
[0054] Embodiment 2, this modified environment-friendly phenolic insulation material, its raw material composition is as follows by weight ratio:
[0055] 100 parts of resole phenolic resin;
[0056] Sodium sulfite 5 parts;
[0057] 10 parts of phenolsulfonic acid solution;
[0058] Stabilizer 2 parts;
[0059] 1 part of nanometer calcium carbonate;
[0060] Calcium sulfate whiskers 1 part;
[0061] 0.1 parts of nano aluminum hydroxide;
[0062] 0.1 part of ethylene glycol;
[0063] Foaming agent 15 parts.
Embodiment 3
[0064] Embodiment 3, this modified environment-friendly phenolic insulation material, its raw material composition is as follows by weight ratio:
[0065] 100 parts of resole phenolic resin;
[0066] Sodium sulfite 15 parts;
[0067] 30 parts of phenolsulfonic acid solution;
[0068] 5 parts of stabilizer;
[0069] 8 parts of nanometer calcium carbonate;
[0070] Calcium sulfate whiskers 8 parts;
[0071] 3 parts of nano aluminum hydroxide;
[0072] 3 parts of ethylene glycol;
[0073] Foaming agent 30 parts.
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Abstract
The invention discloses a modified environment-friendly phenolic aldehyde thermal insulation material and a preparation method thereof. The method comprises the following steps of: sufficiently mixing 100 parts of resole, 5-15 parts of sodium sulfite, 10-30 parts of phenolsulfonic acid solution, 2-5 parts of stabilizer, 1-8 parts of nano calcium carbonate, 1-8 parts of calcium sulfate whisker, 0.1-3 parts of nano aluminum hydroxide, 0.1-3 parts of ethylene glycol and 15-30 parts of foaming agent by weight; uniformly spreading the mixture on a plane carrier; and uniformly heating through a lamination conveyor and performing foaming and curing molding. According to the invention, sodium sulfite and phenolsulfonic acid solution are used as composite catalysts; and since the sodium sulfite has the effects of deoxidizing and reducing the acidity of the mixed solution, under the joint effect of the sodium sulfite and phenolsulfonic acid solution, the corrosion of the phenolic aldehyde thermal insulation material on a metal component is avoided. The modified phenolic aldehyde thermal insulation material disclosed by the invention is far superior to the values stipulated by the national standard in terms of the indexes such as compression strength, bending strength, creep resistance, dimensional stability, water absorption and the like; and the corrosion on metals is obviously reduced in comparison with a common product.
Description
technical field [0001] The invention relates to a phenolic thermal insulation material and a preparation method of the material. Background technique [0002] Phenolic insulation material is a closed-cell rigid foam made of phenolic resin with foaming agent, curing agent and other additives. It has excellent thermal insulation performance and fireproof performance, and is widely used in building insulation, pipeline insulation and other occasions. The phenolic insulation material overcomes the shortcomings of the original foam plastic insulation material, such as flammability, smoke, and heat deformation, and retains the original foam plastic insulation material's light weight and convenient construction. However, the existing phenolic insulation materials have disadvantages such as easy corrosion of metal components, low strength, and easy pulverization during use. [0003] At present, the technical improvement of phenolic insulation board in the market mainly lies in imp...
Claims
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Application Information
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