Preparation method of functional type engineered wood

A technical wood and functional technology, which is applied in the jointing of wooden veneers, manufacturing tools, wood treatment, etc., can solve the problem of interfacial bonding of veneer interfaces with dyeing agents, poor compatibility of water-based adhesives, and environmental pollution in the bleaching and dyeing process and other problems, to achieve the effect of low formaldehyde and VOC release, good compatibility and good penetration function

Active Publication Date: 2016-05-11
DEHUA TB NEW DECORATION MATERIAL CO LTD
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  • Description
  • Claims
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Problems solved by technology

CN103171014B (2015-4-15) discloses a preparation method of scientific and technological wood, but the formaldehyde emission of the technological wood is high, the dyeing agent is difficult to penetrate, easy to lose, not weather-resistant, poor compatibility with water-based adhesives, and environmental pollution in the bleaching and dyeing process More serious; because the flame retardant seriously interferes with the color development of the dye and the interface gluing of the dyed veneer, this technical wood has not been treated with flame retardant, and its functionality needs to be improved

Method used

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  • Preparation method of functional type engineered wood

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preparation example Construction

[0072] The preparation method of β-cyclodextrin peppermint oil micropowder is as follows: at 20°C, mix β-cyclodextrin and peppermint oil at a mass ratio of 8:65, and peppermint oil is embedded in the cavity of β-cyclodextrin in the form of molecules , forming β-cyclodextrin peppermint oil micropowder in clathrate form;

[0073] The extraction method of bamboo leaf flavonoids is as follows: select the dry leaves of the lower part of the bamboo that is more than six years old in Moganshan, Deqing, and grind them into 0.5mm bamboo leaf fine powder; Add 75wt% methanol solution to dissolve and filter, and take the filtrate as the liquid to be separated by column chromatography.

[0074] Three-component compound solution formula two

[0075] It is composed of biomass nanofiber solubilizer, flame retardant and acidic disazo dye compound solution according to the mass ratio of 1:40:100;

[0076] The configuration of biomass nanofiber solubilizer: by weight, 1 part of bamboo leaf fla...

Embodiment 1

[0085] The preparation method of modified MUF adhesive is:

[0086] A. 100 parts of formaldehyde aqueous solution, 0.1 part and 0.3 part of amino-terminated hyperbranched polymer PAMAM whose mass concentration is 36.5wt% are 100 parts by weight, and 0.3 part of amino-terminated hyperbranched polymer PAMAM is put into the reactor, and the stirring is started; The active substance is sodium hydroxide, potassium hydroxide, calcium hydroxide, barium hydroxide or ammonia water;

[0087] B. Add 1 part of hexachlorocyclotriphosphazene, heat up to 50°C, and when the temperature rises to 75°C by itself, add 35 parts of melamine, continue to heat up to 90°C, and react to obtain a preliminary polycondensate;

[0088] C. Add 40 parts of melamine to the above-mentioned preliminary polycondensate, and add 0.6 part of p-toluenesulfonamide to obtain the second polycondensate;

[0089] D. Add 20 parts of urea when the temperature of the second polycondensation product is lowered to 70°C, cont...

Embodiment 2

[0091] The preparation method of modified MUF adhesive is:

[0092] A. 100 parts of formaldehyde aqueous solution, 0.5 part and 0.6 part of amino-terminated hyperbranched polymer PAMAM whose mass concentration is 50wt% are 100 parts in formaldehyde aqueous solution and 0.6 part of amino-terminated hyperbranched polymer PAMAM by weight, and the mass concentration is put into the reactor, and the stirring is started; The active substance is sodium hydroxide, potassium hydroxide, calcium hydroxide, barium hydroxide or ammonia water;

[0093] B. Add 1 part of hexachlorocyclotriphosphazene, heat up to 55°C, and when the temperature rises to 85°C, add 55 parts of melamine, continue to heat up to 95°C, and react to obtain a preliminary polycondensate;

[0094] C. Add 45 parts of melamine in the above-mentioned preliminary polycondensate, and add 0.9 part of p-toluenesulfonamide to obtain the second polycondensate;

[0095] D. Add 30 parts of urea when the temperature of the second p...

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Abstract

The invention relates to a furniture plate and in particular to a preparation method of a functional type engineered wood. The preparation method comprises the following steps: rotary cutting or slicing to prepare a blank veneer, and shearing the blank veneer into a needed size to obtain an A veneer; soaking the A veneer in a ternary compound solution prepared from a biomass nano cellulose solubilizer, a flame retardant and acid dyes, and carrying out treatments including toughening, flame retarding and dyeing to obtain a B veneer, wherein the ternary compound solution is prepared from the biomass nano cellulose solubilizer, the flame retardant and the acid dyes of a bis-azo compound according to the mass ratio to be 1:(25-40):(100-300) in a compounding manner; and adding a formaldehyde decomposition powder in a modified MUF adhesive, uniformly stirring, and carrying out dispensing, assembling, cold pressing and sawing on the B veneer to obtain a finished product. With the interface controlling design, the biomass nanotechnology and the synergistic compounding technology, the preparation method effectively solves the diversified matching problem of the flame retardant, a staining reagent and the adhesive, and realizes one material with multiple functions of the reconstituted decorative lumber manufacturing technology.

Description

technical field [0001] The invention relates to a furniture board, in particular to a preparation method of functional technical wood. Background technique [0002] As the problem of global warming becomes increasingly prominent and extreme weather occurs frequently, the low-carbon economy with the theme of "low emissions, low pollution, and low energy consumption" is increasingly recognized and respected by people. Under such background conditions, the wood industry is playing an increasingly important role in developing a low-carbon economy and coping with climate change by taking advantage of its inherent "green", "environmental protection" and "clean" characteristics. Wood and wood products have a good carbon sequestration effect. As long as it does not rot or burn, the carbon sequestration function of wood and wood products will continue for a long time and stably. Some carbon fixation time can reach decades, hundreds of years. Therefore, increasing the use of wood a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K5/02B27K5/04B27K3/52B27M1/06B27K5/00B27D1/08C09J161/32C08G12/46C08G12/40
CPCB27D1/08B27K3/52B27K5/006B27K5/02B27K5/04B27K2240/30B27M1/06C08G12/40C08G12/46C09J161/32
Inventor 詹先旭戴春平姜江刘元强叶交友程明娟姜彬
Owner DEHUA TB NEW DECORATION MATERIAL CO LTD
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