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Wood modifier and preparation method thereof

A modifier and wood technology, applied in the directions of impregnating wood, wood impregnation, wood processing appliances, etc., can solve the problems of poor bleed resistance, no contribution to wood dimensional stability, and achieve low cost, remarkable flame retardant effect, and preparation method. simple effect

Inactive Publication Date: 2015-06-03
宏耐木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although the flame retardants disclosed in the above documents have the advantages of simple manufacturing methods and low cost, their loss resistance is poor and does not contribute to the dimensional stability of wood.

Method used

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  • Wood modifier and preparation method thereof
  • Wood modifier and preparation method thereof
  • Wood modifier and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0042]

[0043] The catalyst is a light yellow-green powder prepared by the Environmental Protection Flame Retardant Technology Center of the School of Materials Science and Technology, Beijing Forestry University: 40g of tin chloride, 80g of copper sulfate, 35g of sodium chloride, 40g of ferric chloride, 40g of aluminum sulfate, 45g of boric acid and chlorine Zinc chloride 70g (grinded according to the proportion and then pulverized evenly).

[0044] 2. Preparation method:

[0045] 1) In the reaction kettle equipped with a mixer, temperature and pressure monitor and condenser, add the phosphoric acid in the reaction raw materials, stir and heat at the same time, so that the temperature rises to 60°C;

[0046] 2) Add all urea into the reactor, and continue to stir the mixture of phosphoric acid and urea at the same time, so that the material is distributed and heated evenly;

[0047] 3) Continue he...

Embodiment 2

[0054] 1. Prepare raw materials according to the following weight ratio:

[0055]

[0056] The catalysts are: 40g of tin chloride, 135g of copper sulfate, 45g of sodium chloride, 45g of ferric chloride, 65g of aluminum sulfate, 65g of boric acid and 85g of zinc chloride (evenly pulverized after grinding according to the proportion).

[0057] 2. Preparation method:

[0058]1) In a reaction kettle equipped with a mixer, a temperature and pressure display, and a condenser, add phosphoric acid in the reaction raw materials, stir and heat at the same time, so that the temperature rises to 50°C;

[0059] 2) Add urea into the reactor, and at the same time continue to stir the mixture of phosphoric acid and urea, so that the material is distributed and heated evenly;

[0060] 3) Continue heating to raise the temperature to 115°C, slowly and evenly add the catalyst to the reaction kettle to make the mixture react;

[0061] 4) Continue heating until the temperature reaches 140°C, a...

Embodiment 3

[0067] 1. Prepare raw materials according to the following weight ratio:

[0068]

[0069]

[0070] The catalysts are: 35g of tin chloride, 45g of copper sulfate, 35g of sodium chloride, 35g of ferric chloride, 25g of aluminum sulfate, 25g of boric acid and 80g of zinc chloride (evenly pulverized after grinding according to the proportion).

[0071] 1) In the reaction kettle equipped with a mixer, temperature and pressure monitor and condenser, add the phosphoric acid in the reaction raw materials, stir and heat at the same time, so that the temperature rises to 60°C;

[0072] 2) Add urea into the reaction kettle, and continue to stir the mixture of phosphoric acid and urea, so that the material is distributed and heated evenly;

[0073] 3) Continue heating to raise the temperature to 110°C, slowly and evenly add the catalyst to the reaction kettle to make the mixture react, and the reaction material turns light green;

[0074] 4) Continue heating until the temperature ...

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Abstract

The invention relates to a wood modifier and a preparation method thereof. The wood modifier comprises the following raw materials by weight parts: 50-180 parts of phosphoric acid, 30-60 parts of urea, 0.2-0.5 part of catalyst and 1-6 parts of butanetetracarboxylic acid. According to the wood modifier provided by the invention, the butanetetracarboxylic acid is primarily applied to the field of wood treatment and is matched with other components, reasonable proportion is performed, and a good synergy effect is achieved; and compared with the prior art, the wood modifier is excellent in drainage prevention performance, contributes to wood size stability, is excellent in flame-retardant efficiency, simple in preparation method and low in cost.

Description

technical field [0001] The invention relates to the field of chemical reagents used in wood products, in particular to a wood modifier and its preparation method. Background technique [0002] Wood and its products are widely used in interior decoration, furniture manufacturing, house construction and exterior decoration. These materials are combustible materials, which are easy to cause fire, and are easy to dry and shrink when wet, and have poor dimensional stability. How to improve the flame retardancy of materials? The stability and dimensional stability have become a widespread concern all over the world. [0003] At present, the most common method to prevent fires of wood and its products is to use flame retardants in these materials. Most of these flame retardants are based on compounds containing phosphorus, nitrogen, boron, aluminum and halogens. It is widely used because of its good performance, no toxic gas (except halogen flame retardants), no precipitation, no ...

Claims

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Application Information

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IPC IPC(8): C09K3/00C09K21/00B27K3/52
Inventor 张世锋高强李建章周文瑞张纪芝
Owner 宏耐木业有限公司
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