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

Composite curing agent for MUF resin adhesive, and application of composite curing agent in production of medium-high density fiberboards

A composite curing agent and resin adhesive technology, applied in the direction of adhesive additives, adhesives, non-polymer adhesive additives, etc., can solve the problem of few patents on MUF curing agents, achieve excellent latent properties, superior curing performance, Promotes fast curing effect

Active Publication Date: 2019-11-26
大亚木业(肇庆)有限公司 +1
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, judging from the published patents at home and abroad, there are very few patents on the MUF curing agent used in the production of fiberboard by the pipeline air drying method that is suitable for sizing first and then drying

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
  • Composite curing agent for MUF resin adhesive, and application of composite curing agent in production of medium-high density fiberboards
  • Composite curing agent for MUF resin adhesive, and application of composite curing agent in production of medium-high density fiberboards
  • Composite curing agent for MUF resin adhesive, and application of composite curing agent in production of medium-high density fiberboards

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of preparation of composite curing agent for MUF resin adhesive:

[0024] 1. Weigh each component according to the following weight:

[0025] Ammonium persulfate: 5.5kg, hexamethylenetetramine: 4.5kg, p-toluenesulfonic acid: 5kg, ethanolamine: 5kg.

[0026] 2. Add the above components into the reaction kettle one by one, and stir evenly.

[0027] The main technical indicators of the obtained composite MUF resin curing agent are as follows:

[0028]

Embodiment 2

[0030] A kind of preparation of composite curing agent for MUF resin adhesive:

[0031] 1. Weigh each component according to the following weight:

[0032] Ammonium persulfate: 4.5kg, hexamethylenetetramine: 5.5kg, p-toluenesulfonic acid: 5kg, ethanolamine: 5kg.

[0033] 2. Add the above components into the reaction kettle one by one, and stir evenly.

[0034] The main technical indicators of the obtained composite MUF resin curing agent are as follows:

[0035]

Embodiment 3

[0037] A kind of preparation of composite curing agent for MUF resin adhesive:

[0038] 1. Weigh each component according to the following weight:

[0039] Ammonium persulfate: 5kg, hexamethylenetetramine: 5kg, p-toluenesulfonic acid: 5kg, ethanolamine: 5kg.

[0040] 2. Add the above components into the reaction kettle one by one, and stir evenly.

[0041] The main technical indicators of the obtained composite MUF resin curing agent are as follows:

[0042]

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

No PUM Login to View More

Abstract

The invention belongs to the field of wood adhesives, relates to a curing agent, especially relates to a composite curing agent for an MUF resin adhesive. The composite curing agent comprises 15-35 wt% of ammonium persulfate, 20-28 wt% of hexamethylenetetramine, 18-27 wt% of p-toluenesulfonic acid and 18-27 wt% of ethanolamine. The invention also relates to an application of the composite curing agent for the MUF resin adhesive in the production of medium-high density fiberboards. The composite curing agent disclosed by the invention has an excellent latency and a high hydrogen ion release starting temperature, can promote rapid curing of the resin at a high temperature, and also has the advantages of excellent curing performance and long working life. The curing agent is blended with theadhesive to effectively prevent the pre-curing problem of the adhesive in pipeline airflow drying, and can rapidly release hydrogen ions in the high-temperature hot pressing process to rapidly cure the adhesive, so the comprehensive performances of the boards is improved, and the production efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the field of wood adhesives and relates to curing agents, in particular to a composite curing agent for MUF resin adhesives and its application in the production of medium and high density fiberboards. Background technique [0002] Urea-formaldehyde resin (UF) adhesives are widely used in the wood adhesive industry, but the shortcomings of high free formaldehyde content, easy aging and brittle cured products limit the further promotion of UF adhesives. Therefore, it is urgent to develop high-performance and low-toxicity adhesives. Low free UF. Melamine is alkaline, and after copolymerization and modification with UF, it forms melamine urea-formaldehyde resin (MUF), which can block the hydrophilic groups in urea-formaldehyde resin, increase the triazine benzene ring, and effectively improve the water resistance and heat resistance of the resin; Reacts with formaldehyde to form methylol melamine, reducing the free formaldehyde c...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C09J161/30C09J11/04C09J11/06B27N1/02
CPCB27N1/0209C09J11/04C09J11/06C09J161/30C08K13/02C08K3/30C08K5/17C08K5/42
Inventor 朱光华季顺高赵金良孙旺
Owner 大亚木业(肇庆)有限公司
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