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A kind of environment-friendly toughening adhesive for recombined decorative materials and its application

A technology for reorganizing decorative materials and adhesives, applied in the directions of adhesives, adhesive types, starch adhesives, etc., can solve the problems of poor toughness, low environmental protection, low formaldehyde emission, etc., to improve environmental protection and toughness. , The effect of high environmental protection

Active Publication Date: 2018-10-23
DEHUA TB NEW DECORATION MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN104152088B discloses a nano-alumina modified phenolic resin adhesive and its preparation method and application. Although the adhesive has the advantages of fast curing speed, high bonding strength, and low formaldehyde emission when used in wood processing, the adhesive still cannot Avoiding the use of formaldehyde, the environmental protection is still not high enough, and the problem of poor toughness of recombined decorative materials has not been solved
Patent CN103878833A discloses a manufacturing method of recombined bamboo decorative veneer. The adhesive used is a mixture of urea-formaldehyde resin, modified starch emulsion and polyvinyl acetate emulsion. Although it has the effect of reducing costs, it still cannot solve the problem of recombined decoration. The environmental protection of materials is not high enough and the toughness is poor

Method used

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  • A kind of environment-friendly toughening adhesive for recombined decorative materials and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] a. Preparation of modified micro-nano cellulose: the wood or straw fibers from which lignin and hemicellulose have been removed are stirred and reacted with an acid solution with a mass fraction of 45% at 60°C for 2 hours to form a cellulose slurry. The cellulose slurry was added with water to adjust the concentration to 1.8%, and then the cellulose slurry was subjected to low-temperature ultrasonic pretreatment at 8° C., ultrasonic power of 650 W, and ultrasonic frequency of 20 kHz for 40 minutes, and then the cellulose slurry was subjected to high pressure at 100 MPa. The homogenization cycle is 6 times, and then the cellulose slurry is added with water to adjust the concentration to 1.5%, and then 2% of the cellulose slurry mass is added with a silane coupling agent and at 40°C, nitrogen gas flow rate 18ml / min After exhausting oxygen for 7 minutes, perform an in-situ ultrasonic reaction at an ultrasonic power of 750 W and an ultrasonic frequency of 20 kHz for 18 minut...

Embodiment 2

[0035] a. Preparation of modified micro / nano cellulose: the wood or straw fibers from which lignin and hemicellulose have been removed are stirred and reacted with an acid solution of 30% by mass at 40°C for 3 hours to form a cellulose slurry. Add water to the cellulose slurry to adjust the concentration to 1.5%, and then pretreat the cellulose slurry with low-temperature ultrasound at 10°C, ultrasonic power of 1000 W, and ultrasonic frequency of 22 kHz for 60 minutes, and then subject the cellulose slurry to high pressure at 120 MPa The homogenization cycle is 7 times, and then the cellulose slurry is added with water to adjust the concentration to 1%, and then 2% of the cellulose slurry mass is added with a silane coupling agent and the airflow rate is 30ml / min at 40℃ and nitrogen. After exhausting oxygen for 3 minutes, an in-situ ultrasonic reaction was performed at an ultrasonic power of 900 W and an ultrasonic frequency of 18 kHz for 20 minutes to prepare the modified micr...

Embodiment 3

[0042] a. Preparation of modified micro / nano cellulose: the wood or straw fibers from which lignin and hemicellulose have been removed are stirred and reacted with an acid solution with a mass fraction of 60% at 80°C for 1 hour to form a cellulose slurry. The cellulose slurry was added with water to adjust the concentration to 1.8%, and then the cellulose slurry was pretreated by low-temperature ultrasound at 5°C, ultrasonic power of 1000W, and ultrasonic frequency of 22kHz for 30 minutes, and then the cellulose slurry was subjected to high pressure at 150MPa Homogenize twice, then add water to the cellulose slurry to adjust the concentration to 2%, then add 3% of the cellulose slurry mass of the silane coupling agent and at 30°C, nitrogen gas flow rate 5ml / min After exhausting oxygen for 10 minutes, perform an in-situ ultrasonic reaction for 30 minutes at an ultrasonic power of 600W and an ultrasonic frequency of 22kHz to prepare the modified micro-nanocellulose; the silane co...

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Abstract

The invention relates to an environment-friendly toughening adhesive for reconstituted decorative lumber and application thereof. The environment-friendly toughening adhesive for the reconstituted decorative lumber is prepared from, by weight, 3-20 parts of modified nano-crystalline cellulose, 5-10 parts of water-based polymer, 100 parts of biomass composite emulsion, 1.5-5 parts of filler and 10-20 parts of a stress type crosslinking agent; 5-10 parts of the water-based polymer and 100 parts of the biomass composite emulsion are made into a main agent, 3-20 parts of the modified nano-crystalline cellulose and 1.5-5 parts of the filler are added into the main agent and mixed to be uniform, and then 10-20 parts of the stress type crosslinking agent is added to obtain the environment-friendly toughening adhesive for the reconstituted decorative lumber. The environment-friendly toughening adhesive for the reconstituted decorative lumber is high in environmental friendliness and good in toughening effect, no formaldehyde is introduced into the reconstituted decorative lumber when the environment-friendly toughening adhesive for the reconstituted decorative lumber is applied to preparation of the reconstituted decorative lumber, environmental friendliness of the reconstituted decorative lumber is greatly improved, and meanwhile due to the toughening effect of the adhesive, the toughness of the reconstituted decorative lumber is greatly improved.

Description

Technical field [0001] The invention relates to an adhesive and its application, in particular to an environmentally friendly toughening adhesive for reorganized decorative materials and its application. Background technique [0002] Recombinant wood (commonly known in the industry as "technological wood") is an artificial thin wood made from ordinary wood, applied with adhesive and subjected to certain processing procedures. During the manufacturing process of recombined wood, the microstructure and inherent properties of wood are not destroyed, and all natural properties of natural wood such as heat insulation, insulation, temperature regulation and humidity control are completely retained, and many natural defects of artificial fast-growing wood can be overcome. High-value utilization. In the past 30 years, R&D personnel have conducted a lot of research and industrialization mainly centering on the manufacturing equipment of reorganized decorative materials and the functional...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J151/00C09J129/04C09J103/02C09J11/08
CPCC08L2205/035C09J11/08C09J151/00C08L29/04C08L3/02C08L1/02C08L71/02C08L71/00
Inventor 吴振华詹先旭沈金祥程明娟谢序勤钱仁龙
Owner DEHUA TB NEW DECORATION MATERIAL CO LTD