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Phenolic resin additive, phenolic resin containing the same and preparation method thereof

A technology of phenolic resin and additives, applied in the direction of aldehyde/ketone condensation polymer adhesives, adhesives, adhesive types, etc., can solve the problems affecting the curing performance and bonding strength of the adhesive, and limit the use, so as to save The amount of fossil resources used, the reduction in manufacturing costs, and the effect of reducing manufacturing costs

Inactive Publication Date: 2008-05-14
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the amount added is too large, it often affects the curing performance and bonding strength of the adhesive, which limits its use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Phenolic resin additive of the present invention is produced according to the following steps:

[0041] 1) Prepare materials according to the following weight ratio:

[0042] Demineralized water 70kg

[0043] Sodium carbonate 0.5kg

[0044] Defatted Soy Protein Powder 20kg

[0045] Borax 0.8kg

[0046] Aluminum sulfate 0.1kg

[0047] 2) Add all the sodium carbonate and defatted soy protein powder sequentially into the reaction kettle with all the demineralized water, and stir evenly;

[0048] 3) heating up to 40°C, and keeping the temperature for 6 hours;

[0049] 4) Then lower the temperature to 30° C., sequentially add all the borax and aluminum sulfate into the reaction kettle, and stir evenly to obtain the additive of the present invention.

[0050] The performance index of the additive is shown in Table 1.

[0051] The phenolic resin binder containing additives in this embodiment is prepared as follows: the bean protein additive and the above-mentioned alkal...

Embodiment 2

[0054] The additive of phenolic resin of the present invention is produced according to the following steps:

[0055] 1) Prepare materials according to the following weight ratio:

[0056] Demineralized water 80kg

[0057] Sodium carbonate 3kg

[0058] Soy protein powder 35kg

[0059] Borax 1.2kg

[0060] Aluminum sulfate 0.5kg

[0061] 2) Add all the sodium carbonate and soybean protein powder into the reaction kettle filled with all the demineralized water in sequence, and stir evenly;

[0062] 3) Heating to 50°C, and keeping it warm for 5 hours;

[0063] 4) Then lower the temperature to 30° C., sequentially add all the borax and aluminum sulfate into the reaction kettle, stir evenly, and obtain the soy protein additive.

[0064] The performance indicators of the obtained additives are shown in Table 1.

[0065]The additive-containing phenolic resin binder in this embodiment is prepared as follows: the bean protein additive and the above-mentioned alkaline water-solub...

Embodiment 3

[0068] The additive of phenolic resin of the present invention is produced according to the following steps:

[0069] 1) Prepare materials according to the following weight ratio:

[0070] Demineralized water 75kg

[0071] Sodium carbonate 2kg

[0072] Defatted Soy Protein Powder 30kg

[0073] Borax 1kg

[0074] Aluminum sulfate 0.2kg

[0075] 2) Add all the sodium carbonate and soybean protein powder into the reaction kettle filled with all the demineralized water in sequence, and stir evenly;

[0076] 3) Heating to 60°C, and keeping it warm for 3 hours;

[0077] 4) Then lower the temperature to 30° C., sequentially add all the borax and aluminum sulfate into the reaction kettle, stir evenly, and obtain the soy protein additive.

[0078] The performance indicators of the obtained additives are shown in Table 1.

[0079] The additive-containing phenolic resin binder in this embodiment is prepared as follows: the soy protein additive and the above-mentioned alkaline wate...

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Abstract

The invention provides an additive for phenolic resin, a preparation method thereof and a phenolic resin adhesive containing the additive. The raw materials of the additive include dispersion medium, defatted soy protein powder, sodium carbonate and complexing agent, wherein the ratio of the raw materials is: dispersing medium 70-80, defatted soy protein powder 20-35, sodium carbonate 0.5-3, complexing agent The mixture is 0.8-2, and the complexing agent includes borax and aluminum sulfate with a weight ratio of 1.5-12:1. The additive of the present invention contains defatted soybean protein powder, and adding the additive to the phenolic resin not only reduces the manufacturing cost of the adhesive, ensures the bonding strength of the prepared plywood, but also can effectively reduce the formaldehyde emission in the prepared artificial board.

Description

technical field [0001] The present invention relates to an additive for an adhesive, an adhesive based on an organic polymer compound containing the additive and a preparation method thereof, in particular to an additive for a phenolic resin for wood-based panels, a phenolic resin containing the additive and its preparation method. Background technique [0002] With the rapid development of construction, decoration, packaging and other industries, the output of wood-based panels in my country has increased rapidly, and the adhesives for wood-based panels have also developed rapidly. The types of adhesives used for wood-based panels in my country are roughly the same as those in foreign countries. The commonly used "trialdehyde adhesives" include urea-formaldehyde resins, phenolic resins and melamine-formaldehyde resin adhesives, which occupy a dominant position. Among them, phenolic resin is an excellent and widely used glue type in wood adhesives, and phenolic resin is the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K13/02C08L61/06C09J161/06C09J11/00
Inventor 李建章周文瑞张世锋母军张德荣陈欣徐力峥高强
Owner BEIJING FORESTRY UNIVERSITY
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