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Foaming phenolic resin and phenolic foam with foaming phenolic resin

A phenolic resin, foaming technology, applied in the field of phenolic foam, can solve problems such as cost increase, and achieve the effects of improving overall performance, reducing cost, and improving hydrophobicity

Inactive Publication Date: 2012-07-04
JIANGSU QIANXIANG NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, phenolic foam has developed rapidly in China. There are many technologies related to the modification of phenolic foam, but many technologies sacrifice the fire performance of phenolic foam while toughening, or increase the cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The phenol of the said modified phenolic foam of the present invention and the mol ratio of solid formaldehyde of its synthetic modified phenolic resin are 1: 1.89, and the component of foamable phenolic resin of the present invention is as follows: by weight content is (by weight content , taking phenol as 100 as the base): solid formaldehyde 65, cashew nut oil 5, sodium hydroxide 1, urea 7, aluminum hydroxide 10, dicyandiamide: 1; the foaming formula is phenolic resin 100, and the stabilizer is silicone oil (H -203) 3, the blowing agent is selected from pentane 5.5, and the acidic curing agent is selected from p-toluenesulfonic acid 15.

[0015] The present invention has the steps of the phenolic foam preparation method of foamable phenolic resin as follows:

[0016] 1 Mix phenol, cashew nut oil and catalyst according to their content, heat to 75°C,

[0017] 2 Within 90 minutes, add metered paraformaldehyde in portions and react at 80°C for 30 minutes,

[0018] 3 Re...

Embodiment 2

[0022] The phenol and the solid formaldehyde mol ratio of its modified phenolic resin of the said modified phenolic foam of the present invention are 1: 3.05, and the component of foamable phenolic resin of the present invention is as follows: by weight content is (by weight content , taking phenol as 100 as the base): solid formaldehyde 105, cashew nut oil 25, barium hydroxide 2, urea 25, barium sulfate 15, dicyandiamide: 1, melamine 1; the foaming formula is resin 100, and the stabilizer is silicone oil ( H-203) 3, the foaming agent is selected from pentane 6, and the acidic curing agent is selected from p-toluenesulfonic acid 18.

[0023] The present invention has the steps of the phenolic foam preparation method of foamable phenolic resin as follows:

[0024] 1 Mix phenol, cashew nut oil and catalyst according to their content, heat to 75°C,

[0025] 2 Within 90 minutes, add metered paraformaldehyde in portions and react at 80°C for 30 minutes,

[0026] 3 Reheat to 95°C ...

Embodiment 3

[0030] The phenol and solid formaldehyde mol ratio of its synthetic modified phenolic resin of said modified phenolic foam of the present invention is 1: 2.33, and the component of foamable phenolic resin of the present invention is as follows: by weight content is (by weight content , taking phenol as 100 as the base): solid formaldehyde 80, cashew nut oil 15, barium hydroxide 4, urea 18, silicon dioxide 15, dicyandiamide: 1, melamine 1; the foaming formula is resin 100, and the stabilizer is silicone oil (H-203) 3, the blowing agent is selected from pentane 5, and the acidic curing agent is selected from p-toluenesulfonic acid 13.

[0031] The present invention has the steps of the phenolic foam preparation method of foamable phenolic resin as follows:

[0032] 1 Mix phenol, cashew nut oil and catalyst according to their content, heat to 75°C,

[0033] 2 Within 90 minutes, add metered paraformaldehyde in portions and react at 80°C for 30 minutes,

[0034] 3 Reheat to 95°C ...

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Abstract

The invention discloses a foaming phenolic resin and a phenolic foam with the foaming phenolic resin, wherein the constituents of the foaming phenolic resin are as follows (in parts by weight and based on 100 parts of phenol ): 100 parts of phenol, 65-105 parts of solid formaldehyde, 5-25 parts of cashew oil, 0.5-5 parts of a catalyst, 7-25 parts of carbamide, 6-30 parts of an inorganic powder, and 1-6 parts of other modifiers. The phenolic foam with the foaming phenolic resin comprises the foaming phenolic resin, foaming agent, stabilizing agent and acid curing agent as mentioned in the claim 1. The phenolic foam is made from phenolic resin, so that the hydrophobicity of the phenolic resin is increased while the rigidity is improved.

Description

technical field [0001] The invention relates to a phenolic foam, in particular to a foaming phenolic resin and a phenolic foam with the foaming phenolic resin. Background technique [0002] The phenolic foam produced by phenolic resin has the characteristics of low thermal conductivity, non-combustibility, low smoke toxicity, and low value. Phenolic foam has been around for many years and is one of the best fire-resistant organic insulation materials. The Chinese patent No. CN98812037.2 proposes to use a small amount of fluoroamine as a blowing agent to produce a phenolic foam with good thermal insulation performance and improved brittleness. The U.S. patent No. US6013689 proposes a method for producing closed-cell phenolic foam using a reinforcing agent or a nucleating agent. The Chinese patent No. 200310113965.3 proposes to use chemical toughening method to manufacture closed-cell phenolic foam. The Chinese patent No. CN 200710127849.5 uses cashew nut oil to modify phen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G8/28C08G8/08C08K3/22C08K3/30C08K3/36C08L61/14
Inventor 翟立安翟羽佳张均明
Owner JIANGSU QIANXIANG NEW MATERIAL TECH CO LTD
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