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Modified phenolic insulation board with nitrogen as foaming agent

A technology of phenolic insulation board and foaming agent, which is applied in the field of building energy-saving materials, can solve the problems of wasting petroleum resources, reducing fire prevention effect, and high cost, and achieves the effects of reducing production cost, increasing fire safety, and strong surface adsorption

Inactive Publication Date: 2017-12-29
锦州市好为尔保温材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The naphthenic foaming agent is used in the foaming mixture. Although it is an environmentally friendly foaming agent, the products produced must go through enough aging time to make the foaming agent in the foam escape gradually. In some cases, the fire prevention effect will be reduced or adverse effects such as "smoldering" will appear, and there will be unsafe factors in the production process, which will waste oil resources economically and cost high

Method used

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  • Modified phenolic insulation board with nitrogen as foaming agent

Examples

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Comparison scheme
Effect test

Embodiment 1

[0019] The modified phenolic insulation board with nitrogen as foaming agent is prepared from the following raw materials in parts by weight: 55 parts of thermosetting phenolic resin; 40 parts of nitrogen; 10 parts of fumed silica; 30 parts of curing agent; foam stabilizer 5 parts; 5 parts of toughening modifier.

[0020] The acid curing agent is a 1:1 mixed solvent of phosphoric acid and ethylene glycol. The foam stabilizer is silicon carbon type silicone oil (DC-193). The toughening modifier is polyhexamethylene adipamide (modified nylon 66).

[0021] Concrete preparation process is as follows:

[0022] 1) Premix thermosetting phenolic resin, fumed silica, silicon carbon type silicone oil (DC-193) and polyhexamethylene adipamide (modified nylon 66) according to the ratio of raw materials to form mixture A ;

[0023] 2) Add the mixture A obtained in step 1 as the foaming raw material and the acid curing agent (1:1 mixed solvent of phosphoric acid and ethylene glycol) to t...

Embodiment 2

[0025] The modified phenolic insulation board with nitrogen as foaming agent is prepared from the following raw materials in parts by weight: 85 parts of thermosetting phenolic resin; 30 parts of nitrogen; 25 parts of fumed silica; 15 parts of curing agent; foam stabilizer 8 parts; toughening modifier 10 parts.

[0026] Concrete preparation process is as follows:

[0027] 1) Premix thermosetting phenolic resin, fumed silica, polyoxyethylene condensate and polyhexamethylene adipamide (modified nylon 66) according to the ratio of raw materials to form mixture A;

[0028] 2) Add the mixture A obtained in step 1 as the foaming raw material and the acid curing agent (1:1 mixed solvent of phosphoric acid and ethylene glycol) to the stirring system according to the weight ratio. During the stirring process, feed nitrogen into the stirring system , adjust the nitrogen pressure in the range of 0.6Mpa-0.8Mpa; the total amount of nitrogen gas introduced is controlled within the aforemen...

Embodiment 3

[0030] The modified phenolic insulation board with nitrogen as foaming agent is prepared from the following raw materials in parts by weight: 60 parts of thermosetting phenolic resin; 25 parts of nitrogen; 5 parts of fumed silica; 20 parts of curing agent; foam stabilizer 8 parts; toughening modifier 8 parts.

[0031] Concrete preparation process is as follows:

[0032] 1) Premix thermosetting phenolic resin, fumed silica, polyoxyethylene condensate and polyhexamethylene adipamide (modified nylon 66) according to the ratio of raw materials to form mixture A;

[0033] 2) Add the mixture A obtained in step 1 as the foaming raw material and the acid curing agent (1:1 mixed solvent of phosphoric acid and ethylene glycol) to the stirring system according to the weight ratio. During the stirring process, feed nitrogen into the stirring system , adjust the nitrogen pressure in the range of 0.6Mpa-0.8Mpa; pass the total amount of nitrogen gas into the aforementioned range of parts by...

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Abstract

The invention discloses a modified phenolic insulation board with nitrogen as a foaming agent and belongs to the technical field of energy conservation materials in buildings. The modified phenolic insulation board is prepared from, by weight, 55-85 parts of thermosetting phenolic resin, 25-40 parts of nitrogen, 5-25 parts of fumed silica, 15-30 parts of a curing agent, 2-8 parts of a foam stabilizer and 2-10 parts of a toughening modifier. The thermosetting phenolic resin, the fumed silica, the foam stabilizer and the toughening modifier are proportionally mixed and fed into a stirring system, and nitrogen pressure is regulated to be from 0.6Mpa to 0.8Mpa; a chain board in the stirring system is controlled to be from 65DEG C to 75DEG C, the foaming process is gradually completed on a foaming material with stirring and feeding of the nitrogen, and the foaming material is cured into the phenolic-foaming insulation board. The nitrogen is taken as the foaming agent, a uniform physical barrier is provided for foaming, and thermal conductivity of the phenolic-foaming insulation board is lowered; fire-retardant safety is improved, and production cost is reduced.

Description

technical field [0001] The invention relates to a modified phenolic insulation board, which belongs to the technical field of building energy-saving materials. Background technique [0002] At present, commonly used modified phenolic insulation boards use thermosetting phenolic resin as the main raw material, add surfactants, use cyclopentane and other low-boiling point organic solvents as foaming agents, and fully mix the components under the action of acidic catalysts Finally, the foaming mixture is foamed and cured at a temperature of 60Cº~75Cº. In the production components of conventional modified phenolic insulation boards, organic solvents of naphthenic series (cyclopentane, cyclohexane, cyclobutane, etc.) with low boiling points are often used as foaming agents for modified phenolic insulation boards. When the foam mixture reaches a certain temperature, the low-boiling naphthenic foaming agent in the material begins to volatilize out of the material. At this time, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08L77/06C08L83/04C08L71/02C08K3/36C08K3/32C08K5/053C08J9/12
Inventor 李明树
Owner 锦州市好为尔保温材料有限公司
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