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Phenolic resin adhesive and preparation method thereof

A technology for phenolic resin adhesives and adhesives, applied in adhesives, aldehyde/ketone condensation polymer adhesives, adhesive types, etc., to achieve environmental friendliness, avoid waste, and reduce the amount of phenol

Inactive Publication Date: 2014-04-09
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Rare reports on the preparation of phenolic resin adhesives by pyrolysis of biomass briquette fuel instead of phenol

Method used

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  • Phenolic resin adhesive and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1. A phenolic resin adhesive and its preparation method, which is based on the mixture of raw materials (phenol + biomass molding fuel pyrolysis tar): formaldehyde: catalyst (sodium hydroxide + potassium carbonate) = 1:1.5:0.3 (molar ratio ), the catalyst adopts sodium hydroxide, potassium carbonate composite catalyst (sodium hydroxide: potassium carbonate (weight ratio)=2: (0.5-1.5)), the raw material adopts the mixture of phenol and biomass molding fuel pyrolysis tar (wherein biomass The addition amount of briquette fuel pyrolysis tar is 30-50%). Connect electric stirrer, thermometer, reflux condenser on the 500ml three-necked round bottom flask, install separatory funnel on the reflux condenser, at first tar and phenol are placed in 500ml round bottom flask (tar substitution amount is the total mass percentage of tar phenol ), start the agitator, gradually add the composite catalyst, and stir at about 45°C for 20min. Then start to add the formaldehyde solution dropw...

Embodiment 2

[0020] A phenolic resin adhesive and a preparation method thereof, which are based on mixture raw materials (phenol + biomass molding fuel pyrolysis tar): formaldehyde: catalyst (sodium hydroxide + potassium carbonate) = 1:1.5:0.3 (molar ratio), The catalyst is a composite catalyst of sodium hydroxide and potassium carbonate (sodium hydroxide:potassium carbonate (weight ratio)=2:0.5), and the raw material is a mixture of phenol and biomass molding fuel pyrolysis tar (in which biomass molding fuel pyrolysis tar is added amount is 30%). Connect electric stirrer, thermometer, reflux condenser on the 500ml three-necked round bottom flask, install separatory funnel on the reflux condenser, at first tar and phenol are placed in 500ml round bottom flask (tar substitution amount is the total mass percentage of tar phenol ), start the agitator, gradually add the composite catalyst, and stir at about 45°C for 20min. Then start to add the formaldehyde solution dropwise, and the dropwise...

Embodiment 3

[0022] A phenolic resin adhesive and a preparation method thereof, which are based on mixture raw materials (phenol + biomass molding fuel pyrolysis tar): formaldehyde: catalyst (sodium hydroxide + potassium carbonate) = 1:1.5:0.3 (molar ratio), The catalyst is a composite catalyst of sodium hydroxide and potassium carbonate (sodium hydroxide: potassium carbonate (weight ratio) = 2:1), and the raw material is a mixture of phenol and biomass molding fuel pyrolysis tar (in which biomass molding fuel pyrolysis tar is added amount is 40%). Connect electric stirrer, thermometer, reflux condenser on the 500ml three-necked round bottom flask, install separatory funnel on the reflux condenser, at first tar and phenol are placed in 500ml round bottom flask (tar substitution amount is the total mass percentage of tar phenol ), start the agitator, gradually add the composite catalyst, and stir at about 45°C for 20min. Then start to add the formaldehyde solution dropwise, and the dropwis...

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Abstract

The invention discloses a phenolic resin adhesive and a preparation method thereof. The phenolic resin adhesive comprises phenol, formaldehyde and a catalyst, and also comprises biomass briquette pyrolysis tar, wherein the ratio of a mixture of raw material phenol and biomass briquette pyrolysis tar to formaldehyde to the catalyst is 1: 1.5: 0.3, the catalyst is a composite catalyst of sodium hydroxide and potassium carbonate in a weight ratio of 2: (0.5-1.5), the raw material adopts the mixture of phenol and the biomass briquette pyrolysis tar, and the addition quantity of the biomass briquette pyrolysis tar is 30 to 50 percent. The product quality conforms to the national standard (GB / T14732-2006, GB / T9846-2004); the phenolic resin adhesive product has the advantage that the consumption of the phenol raw material is reduced, and has significance in promoting utilization of the biomass tar, reducing the environmental pollution in the production process of the biomass briquette, and lowering the preparation cost.

Description

technical field [0001] The invention relates to a phenolic resin adhesive and its preparation technology, in particular to a method for preparing the phenolic resin adhesive by using a mixture of phenol and biomass molding fuel pyrolysis tar as raw materials. Background technique [0002] Phenolic resin glue has excellent bonding strength, good water resistance, heat resistance and chemical stability, and is currently the main glue used for indoor and outdoor wood-based panels. Its curing speed is slow, the curing temperature is high, and the cost is also high. In the present invention, tar by-products in the preparation process of biomass briquette is used to replace phenol with a higher price, and a new type of composite catalyst is used to synthesize phenolic resin adhesive products that meet national quality standards in view of the special properties of biomass briquette fuel pyrolysis tar. It provides a new way for resource utilization of biomass briquette fuel pyroly...

Claims

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Application Information

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IPC IPC(8): C09J161/14C08G8/28
Inventor 刘石彩杨华邓先伦蒋剑春
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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