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

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

Example Embodiment

[0040] Example 1

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

[0042]

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

[0044] 2. Preparation method:

[0045] 1) In a reactor equipped with a stirrer, a temperature and pressure display, and a condenser, add phosphoric acid in the reaction raw materials, stir while heating, and raise the temperature to 60°C;

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

[0047] 3) When heating is continued to increase the temperature to 120°C, the catal...

Example Embodiment

[0053] Example 2

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

[0055]

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

[0057] 2. Preparation method:

[0058] 1) In a reactor equipped with a stirrer, a temperature and pressure display, and a condenser, add phosphoric acid in the reaction raw materials, stir while heating, and raise the temperature to 50°C;

[0059] 2) Add urea to the reaction kettle, and continue to stir the mixture of phosphoric acid and urea at the same time, so that the materials are distributed and heated evenly;

[0060] 3) When heating continues to increase the temperature to 115°C, slowly and uniformly add catalyst to the reaction kettle to make the mixture react;

[0061] 4) Continue heating to make the temperature reach 140℃, and observe the reaction phen...

Example Embodiment

[0066] Example 3

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

[0068]

[0069]

[0070] The catalyst is: 35g tin chloride, 45g copper sulfate, 35g sodium chloride, 35g iron chloride, 25g aluminum sulfate, 25g boric acid and 80g zinc chloride (grind according to the proportion and pulverize uniformly).

[0071] 1) In a reactor equipped with a stirrer, a temperature and pressure display, and a condenser, add phosphoric acid in the reaction raw materials, stir while heating, and raise the temperature to 60°C;

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

[0073] 3) When heating is continued to increase the temperature to 110°C, the catalyst is slowly and uniformly added to the reaction kettle to make the mixture react, and the reaction material turns light green;

[0074] 4) Continue heating to make the temperature reach 130℃, and observe the reac...

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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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