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Preparation method of phenolic blocky foam

A technology of block foam and phenolic formaldehyde, which is applied in the field of preparation of phenolic block foam, can solve the problems of complex construction process, harm to human body, high thermal conductivity, etc., and achieve the effects of low thermal conductivity, large expansion ratio, and reduced curing heat release

Inactive Publication Date: 2017-05-17
安徽复材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the traditional pipe insulation material high thermal conductivity, complex construction process, and harmful to the human body shortcomings of the preparation method of phenolic block foam

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A preparation method of phenolic block foam, adopts the following steps:

[0029] (1) Preparation of hair-styling phenolic resin:

[0030] (1-1) Prepare materials according to the following components and parts by weight: phenol 100g, paraformaldehyde 40g, catalyst 8g, amines 15g, alcohols 8g, wherein the paraformaldehyde used is 96wt% formaldehyde, catalyst It is an amine catalyst, the amine substance is polyimide, and the alcohol substance is glycerol;

[0031] (1-2) Phenol, catalyst and alcohols are put into the reaction kettle, and the temperature rises to 50°C;

[0032] (1-3) Continuously add paraformaldehyde within 1 hour, and keep the temperature constant during the process;

[0033] (1-4) After adding formaldehyde, keep the reaction at 55°C for 1 hour, then raise the temperature to 70°C and continue the reaction for 2 hours, add amines, raise the temperature to 90°C and continue the reaction for 2 hours, after cooling down, you can get a curable phenolic resin...

Embodiment 2

[0037] A preparation method of phenolic block foam, adopts the following steps:

[0038] (1) Preparation of hair-styling phenolic resin:

[0039] (1-1) Prepare materials according to the following components and parts by weight: phenol 100g, paraformaldehyde 50g, catalyst 10g, amines 20g, alcohols 10g, wherein the paraformaldehyde used is 96wt% formaldehyde, catalyst It is an amine catalyst, the amine substance is ammonium polyphosphate, and the alcohol substance is diethylene glycol;

[0040] (1-2) Put phenol, catalyst, and alcohols into the reaction kettle, and the temperature rises to 55°C;

[0041] (1-3) Continuously add paraformaldehyde within 1 hour, and keep the temperature constant during the process;

[0042] (1-4) After adding formaldehyde, keep the reaction at 60°C for 1 hour, then raise the temperature to 75°C and continue the reaction for 2 hours, add amines, raise the temperature to 95°C and continue the reaction for 2 hours, after cooling down, you can get a c...

Embodiment 3

[0046] A preparation method of phenolic block foam, adopts the following steps:

[0047] (1) Preparation of hair-styling phenolic resin:

[0048] (1-1) Prepare materials according to the following components and parts by weight: phenol 100g, paraformaldehyde 55g, catalyst 15g, amines 25g, alcohols 15g, wherein the paraformaldehyde used is 96wt% formaldehyde, catalyst It is an amine catalyst, the amine substance is ammonium polyphosphate, and the alcohol substance is diethylene glycol;

[0049] (1-2) Put phenol, catalyst, and alcohols into the reaction kettle, and the temperature rises to 60°C;

[0050] (1-3) Continuously add paraformaldehyde within 1 hour, and keep the temperature constant during the process;

[0051] (1-4) After adding formaldehyde, keep the reaction at 60°C for 1 hour, then raise the temperature to 75°C and continue the reaction for 2 hours, add amines, raise the temperature to 95°C and continue the reaction for 2 hours, after cooling down, you can get a c...

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Abstract

The invention relates to a preparation method of phenolic blocky foam. The preparation method comprises preparing foaming phenolic resin, uniformly pre-mixing the foaming phenolic resin, a foaming agent and an additive, mixing the mixture and a curing agent, pouring the mixture into a mole, carrying out curing at a mold temperature of 60-70 DEG C for 60-80min, and carrying out demolding to obtain the phenolic blocky foam. Compared with the prior art, the preparation method solves the problem that the traditional pipe thermal insulation material has a high heat conductivity coefficient and high construction complexity and can damage to the human body.

Description

technical field [0001] The invention relates to the field of thermal insulation materials for petroleum and chemical pipelines, in particular to a preparation method of phenolic block foam. Background technique [0002] At present, thermal insulation materials such as glass wool, rock wool, and diatomaceous earth are mostly used as thermal insulation materials for petroleum and chemical pipelines. These thermal insulation materials have high thermal conductivity, complicated construction technology, and are harmful to human body, so they will be gradually eliminated. [0003] Chinese patent CN 103865016A discloses a preparation method of expandable phenolic resin, which is prepared according to the following components and parts by weight: phenol 1000, paraformaldehyde 700-750, catalyst 20-40, modifier 40-80; Phenol, paraformaldehyde, and catalyst are placed in a reaction kettle, and the temperature is controlled at 60-90°C, and reacted for 3 hours; the reaction temperature ...

Claims

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Application Information

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IPC IPC(8): C08J9/14C08L61/14C08L83/04C08L71/00C08G8/28
Inventor 杨金平毛建东
Owner 安徽复材科技有限公司
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