Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for producing flame-retardant azo-ydroxymethyl resin modified reinforced wood material

A technology of nitrogen hydroxymethyl resin and wood materials, applied in wood treatment, impregnation of wood, wood impregnation, etc., can solve the problems of poor flame retardant and smoke suppression performance, achieve enhanced flame retardant and smoke suppression performance, improve fire performance index, Effect of total heat release reduction

Inactive Publication Date: 2013-05-22
NORTHEAST FORESTRY UNIVERSITY
View PDF5 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the technical problem of poor flame retardancy and smoke suppression performance of the existing nitrogen methylol resin reinforced wood materials, and provides a preparation method of flame retardant nitrogen methylol resin modified reinforced wood materials

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for producing flame-retardant azo-ydroxymethyl resin modified reinforced wood material

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0011] Embodiment 1: A method for preparing a flame-retardant nitrogen methylol resin modified reinforced wood material according to the present embodiment is carried out according to the following steps:

[0012] 1. Weigh raw materials: Weigh 1-2 parts of nitrogen methylol resin, 0.5-1 part of flame retardant, 1.6-3.2 parts of functional additives and 40-80 parts of water according to parts by mass, mix and stir until dissolved. A mixed solution is obtained, wherein the functional auxiliary agent is one of acetic acid, magnesium chloride or magnesium nitrate or a mixture of several of them in any ratio;

[0013] 2. Impregnation treatment: put the wooden material into a closed vacuum container, the vacuum degree in the closed vacuum container is 0.05-0.09MPa, and the vacuum time is 0.5-5h, and then inject the mixed solution in step 1 into the airtight vacuum container, so that Immerse the wooden material in the mixed solution, pressurize the airtight vacuum container to 0.1-2....

specific Embodiment approach 2

[0016] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the nitrogen methylol resin described in step 1 is trimethylol melamine, alkylene urea derivatives, 1,3-dimethylol methylene One or any mixture of ethyl urea, dimethylol urea, 1,3-dimethylol-dihydroxy-ethylene urea and etherified dimethylol dihydroxy ethylene urea, Other steps and parameters are the same as in the first embodiment.

specific Embodiment approach 3

[0017] Specific embodiment three: The difference between this embodiment and specific embodiment one or two is that the flame retardant described in step one is one of boric acid, phosphoric acid, phosphoric acid amidinourea and methylolated phosphoric acid amidinourea Or any mixture of several, other steps and parameters are the same as those in Embodiment 1 or 2.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Peak heat release rateaaaaaaaaaa
Total heat releaseaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for producing a flame-retardant azo-ydroxymethyl resin modified reinforced wood material, which relates to a method for producing a flame-retardant modified wood material and aims at solving the technical problems that the existing azo-ydroxymethyl resin modified reinforced wood material has poor flame-retardant smoke-suppressant performance. The production method comprises the steps of weighing azo-ydroxymethyl resin, flame retardants, functional aids and water, mixing the materials to obtain a solution, then putting a wood material into the solution for dipping treatment, and drying and fixing the wood material to obtain the flame-retardant azo-ydroxymethyl resin modified reinforced wood material. The total heat release of the wood material is 22-28 MJ / m2 and reduced by 40 percent, the ignition time is 17-22 seconds and prolonged by 24 percent, the fire performance index is 0.062-0.095 and improved by 56 percent, and the mass fraction of residual carbon monoxide and carbon oxide is 31.08-37.5 percent and increased by 43 percent; the flame retardant performance is improved, and no environment pollution is produced, and the application field of azo-ydroxymethyl resin modified reinforced wood material is widened.

Description

technical field [0001] The invention relates to a preparation method of flame-retardant modified wood material. Background technique [0002] Nitrogen methylol resin is a nitrogen-containing low-molecular resin. In terms of modification and reinforcement of wood materials, compared with materials enhanced by other wood material chemical modification agents, nitrogen methylol resin reinforced wood materials have better dimensional stability. , Density, hardness, compressive strength, elastic modulus improvement and other excellent properties, the application in low molecular resin reinforced wood materials has become a research hotspot. Wooden materials treated with nitrogen hydroxymethyl resin have good dimensional stability, high surface hardness, high compressive strength and decay resistance, which can effectively reduce the deformation, cracking, mold and decay of woody materials during use. Aging and other problems, it can be applied to the functional enhancement treat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B27K3/08B27K5/04B27K3/50B27K3/52
Inventor 谢延军王清文江涛王奉强王海刚
Owner NORTHEAST FORESTRY UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com