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

High-efficiency extender for environmentally-friendly urea formaldehyde resin, and preparation and use thereof

An environmentally friendly urea-formaldehyde resin and urea-formaldehyde resin technology, which is applied in polymer adhesive additives, non-polymer adhesive additives, aldehyde/ketone condensation polymer adhesives, etc., can solve the problem of reducing the use efficiency of urea-formaldehyde resin and reducing adhesive The problems of liquid fluidity and insignificant effect can achieve the effect of curing speed and sufficient, solving poor pre-pressing performance and simple preparation method.

Active Publication Date: 2011-06-08
北海旺昌包装材料有限公司
View PDF7 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its wettability is poor, in the process of mixing with urea-formaldehyde resin, it is easy to agglomerate to form "noodles", which greatly reduces the fluidity of the glue, thereby reducing the use efficiency of urea-formaldehyde resin
Inorganic reinforcing fillers, such as chalk powder, bentonite, etc., can also be used alone in the preparation of urea-formaldehyde resin, but the effect is not obvious when added less, and the cost is too high when added large

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
  • High-efficiency extender for environmentally-friendly urea formaldehyde resin, and preparation and use thereof
  • High-efficiency extender for environmentally-friendly urea formaldehyde resin, and preparation and use thereof
  • High-efficiency extender for environmentally-friendly urea formaldehyde resin, and preparation and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] 1. Prepare raw materials according to the following weight ratio:

[0045] 50 parts of filler, 30 parts of inorganic reinforcing filler, 5 parts of emulsifier and 15 parts of hygroscopic agent.

[0046] Wherein filler carries out by following weight ratio:

[0047] Bark flour: 40 parts, soybean flour 30 parts, cassava flour 15 parts, sorghum flour 10 parts, corn flour 5 parts.

[0048] Wherein the inorganic reinforcing filler is carried out according to the following ratio:

[0049] 20 parts of kaolin, 10 parts of bentonite.

[0050] The emulsifier is fatty acid polyoxyethylene ester SG-10.

[0051] Hygroscopic agent is carried out according to the following ratio:

[0052] 7 parts of salt, 3 parts of urea, 5 parts of calcium chloride.

[0053] 2. Crush the above-mentioned raw materials with a good ratio to 50-200 microns and mix them to obtain the high-efficiency extender 1.

Embodiment 2

[0055] 1. Prepare raw materials according to the following weight ratio:

[0056] 50 parts of filler, 30 parts of inorganic reinforcing filler, 5 parts of emulsifier and 15 parts of hygroscopic agent.

[0057] Wherein filler carries out by following weight ratio:

[0058] Bark flour: 40 parts, soybean flour 20 parts, cassava flour 30 parts, corn flour 10 parts.

[0059] Wherein the inorganic reinforcing filler is carried out according to the following ratio:

[0060] 15 parts of kaolin, 15 parts of bentonite.

[0061] The emulsifier is Tween T-85.

[0062] Hygroscopic agent is carried out according to the following ratio:

[0063] 7 parts of salt, 3 parts of urea, 5 parts of calcium chloride.

[0064] 2. Crush the above-mentioned raw materials with a good ratio to 50-200 microns and mix them to obtain the high-efficiency extender 2.

Embodiment 3

[0066] 1. Prepare raw materials according to the following weight ratio:

[0067] 40 parts of filler, 20 parts of inorganic reinforcing filler, 5 parts of emulsifier and 5 parts of hygroscopic agent.

[0068] Wherein filler carries out by following weight ratio:

[0069] Bark powder: 50 parts, soybean flour 20 parts, cassava flour 20 parts, sorghum flour 10 parts.

[0070] Wherein the inorganic reinforcing filler is carried out according to the following ratio:

[0071] 15 parts of talcum powder, 15 parts of diatomaceous earth.

[0072] Emulsifier selects sodium stearate for use.

[0073] Hygroscopic agent is carried out according to the following ratio:

[0074] 7 parts of table salt, 3 parts of urea, 5 parts of magnesium chloride.

[0075] 2. Crush the above-mentioned raw materials with a good ratio to 50-200 microns and mix them to obtain the high-efficiency extender 3.

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
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a high-efficiency extender for environmentally-friendly urea formaldehyde resin, and preparation and use thereof. The high-efficiency extender comprises the following components: filler, organic reinforced filler, emulsifier and moisture absorbent. The preparation method of the high-efficiency extender is simple and convenient to use, the high-efficiency extender can be added in the synthesis process of urea formaldehyde resin and adhesive mixing mainly for sealing hydrophilic groups in urea formaldehyde resin, increasing the toughness and wettability of reinforced urea formaldehyde resin and promoting the water in the urea formaldehyde resin to evaporate. The high-efficiency extender can effectively solve the problem of low prepressing performance which is causedwhen high water content single plates are pressed to form plywood, and can obviously improve the water resistance of the plywood. Compared with the conventional plywood pressed after adhesive mixing by using flour, the plywood pressed after the high-efficiency extender disclosed by the invention is added into the urea formaldehyde resin according to an added amount of 30 to 35 weight percent has the advantages that: the adhesive consumption is reduced by 20 to 30 percent; and the comprehensive cost of each ton of artificial plates is saved by 30 to 50 yuan.

Description

technical field [0001] The invention relates to a high-efficiency extender for urea-formaldehyde resins, in particular to an environmentally-friendly high-efficiency extender for urea-formaldehyde resins. The invention also relates to wood adhesives containing the high-efficiency extenders and their application in the preparation of plywood. The invention belongs to the field of wood adhesive additives. Background technique [0002] Since the reform and opening up, China's forestry industry has developed rapidly, and the wood-based panel industry has emerged as a new force, which has become an important economic growth point of the forestry industry. In 2009, the total output of wood-based panels in my country reached 113.5336 million cubic meters, an increase of 20.65% over 2008. Facing the impact of the world economic crisis, the output of wood-based panels still maintained a steady growth. my country's wood-based panel industry is the industry with the largest amount of ...

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): C09J161/24C09J11/08C09J11/04C09J11/06B27D1/04
Inventor 雷得定纪良刘波
Owner 北海旺昌包装材料有限公司
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