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Nano modified urea resin for environment friendly artificial board and preparation method thereof

A urea-formaldehyde resin, nano-modification technology, applied in the direction of adhesive types, aldehyde/ketone condensation polymer adhesives, adhesive additives, etc., can solve the problems of cumbersome operation, low efficiency, insignificant effect, etc. The effect of good viscosity, improved environmental performance, large market value and social significance

Active Publication Date: 2012-08-22
SHANGHAI RUNHE NANO MATERIAL SCI &TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method requires cumbersome operations and low efficiency
[0015] (4) Dehydration process: Part of the free formaldehyde can be evaporated together during the dehydration process, but the effect is not significant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of preparation method of environment-friendly type wood-based panel nano-modified urea-formaldehyde resin, comprises the following steps:

[0040] (1) Preparation materials:

[0041] 1. Phosphoric acid, a commercially available product;

[0042] 2. Zirconium oxychloride, a commercially available product;

[0043] 3. Sodium hydroxide, a commercially available product;

[0044] 4. Tetraethylenepentamine, a commercially available product;

[0045] 5. Urea, a commercially available product;

[0046] 6. Formaldehyde, a commercially available product;

[0047] 7. Polyvinyl alcohol, a commercially available product;

[0048] 8. Ammonium chloride, a commercially available product;

[0049] (2) Preparation of formaldehyde scavenger

[0050] 1. Preparation of Vector

[0051] Add 147kg ZrOCl in 2000L pure water 2 ·8H 2 O, 40L 40% HF and 100L 85% H 3 PO 4 , while raising the temperature to 80°C for 2 hours, then filtering and washing the filter cake until the pH ...

Embodiment 2

[0059] A kind of preparation method of environment-friendly type wood-based panel nano-modified urea-formaldehyde resin, comprises the following steps:

[0060] (1) Preparation materials:

[0061] 1. Phosphoric acid, a commercially available product;

[0062] 2. Zirconium oxychloride, a commercially available product;

[0063] 3. Sodium hydroxide, a commercially available product;

[0064] 4. Triethylenetetramine, a commercially available product;

[0065] 5. Urea, a commercially available product;

[0066] 6. Formaldehyde, a commercially available product;

[0067] 7. Polyvinyl alcohol, a commercially available product;

[0068] 8. Ammonium chloride, a commercially available product;

[0069] (2) Preparation of formaldehyde scavenger

[0070] 1. Preparation of Vector

[0071] Add 147kg ZrOCl in 2000L pure water 2 ·8H 2 O, 40L 40% HF and 100L 85% H 3 PO 4 , while raising the temperature to 80°C for 2 hours, then filtering and washing the filter cake until the pH of...

Embodiment 3

[0077] A kind of preparation method of environment-friendly type wood-based panel nano-modified urea-formaldehyde resin, comprises the following steps:

[0078] (1) Preparation materials:

[0079] 1. Phosphoric acid, a commercially available product;

[0080] 2. Zirconium oxychloride, a commercially available product;

[0081] 3. Sodium hydroxide, a commercially available product;

[0082] 4. N-butylamine, a commercially available product;

[0083] 5. Urea, a commercially available product;

[0084] 6. Formaldehyde, a commercially available product;

[0085] 7. Polyvinyl alcohol, a commercially available product;

[0086] 8. Ammonium chloride, a commercially available product;

[0087] (2) Preparation of formaldehyde scavenger

[0088] 1. Preparation of Vector

[0089] Add 147kg ZrOCl in 2000L pure water 2 ·8H 2 O, 40L 40% HF and 100L 85% H 3 PO 4 , while raising the temperature to 80°C for 2 hours, then filtering and washing the filter cake until the pH of the was...

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Abstract

The invention relates to a nano modified urea resin for environment friendly artificial board and a preparation method thereof. The nano modified urea resin is prepared by implanting formaldehyde scaverger into urea resin by in-situ reaction technology, and the nano modified urea resin comprises the following components and contents (weight percent): 95-99.9% of urea resin and 0.1-5% of formaldehyde scaverger. Compared with the prior art, the nano modified urea resin for environment friendly artificial board in the invention has low free formaldehyde content, good glueability, long storage time, can control release of free formaldehyde in urea resin for a long time, overcomes the shortcomings of traditional low formaldehyde content resin such as poor binding property, easy rebound for formaldehyde release, and short storage time, thus substantially improving environment protection performance of urea resin, radically solving standard exceeding problem of free formaldehyde in indoor decoration and having great market value and social significance.

Description

technical field [0001] The invention relates to adhesives, in particular to a nano-modified urea-formaldehyde resin for environment-friendly wood-based panels and a preparation method thereof. Background technique [0002] Formaldehyde is the most important pollutant in household life. The problem of damage to human health caused by formaldehyde pollution has become increasingly prominent, and related reports and examples have increased significantly. According to the statistics of the Ministry of Construction, the formaldehyde content of newly decorated rooms exceeds the standard by more than 80%. Formaldehyde pollution in home mainly comes from the extensive use of wood-based panels. At present, the output of wood-based panels in my country has taken the second place in the world, but a large number of imported wood-based panels are still needed to meet the needs of interior decoration. The domestically produced urea-formaldehyde resin glue cannot produce E0 standard wood...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J161/24C09J11/02
Inventor 陶志清顾海斌殷锡平郭关金
Owner SHANGHAI RUNHE NANO MATERIAL SCI &TECH CO LTD
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