CN113119268A - Environment-friendly moisture-proof density board and preparation method thereof - Google Patents

Environment-friendly moisture-proof density board and preparation method thereof Download PDF

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Publication number
CN113119268A
CN113119268A CN201911389324.8A CN201911389324A CN113119268A CN 113119268 A CN113119268 A CN 113119268A CN 201911389324 A CN201911389324 A CN 201911389324A CN 113119268 A CN113119268 A CN 113119268A
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China
Prior art keywords
parts
density board
nano
friendly
environment
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CN201911389324.8A
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Chinese (zh)
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不公告发明人
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Shaoxing Yiyue Intelligent Technology Co ltd
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Shaoxing Yiyue Intelligent Technology Co ltd
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Priority to CN201911389324.8A priority Critical patent/CN113119268A/en
Publication of CN113119268A publication Critical patent/CN113119268A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • B27N3/12—Moulding of mats from fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/20—Moulding or pressing characterised by using platen-presses

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The invention discloses an environment-friendly moisture-proof density board and a preparation method thereof, wherein the density board is composed of the following raw materials in parts by weight: 45-55 parts of plant fiber environment-friendly material, 15-25 parts of soybean residue powder, 10-20 parts of egg shell, 20-30 parts of coal cinder, 10-18 parts of modified nano-silica, 6-10 parts of nano-carbon black, 8-14 parts of titanium dioxide, 3-5 parts of ammonium polyphosphate, 5-10 parts of sodium dodecyl sulfate, 8-10 parts of adhesive and 12-16 parts of ultraviolet absorbent. The invention utilizes the waste materials of soybean dregs, egg shells, coal cinder and the like, saves solid wood resources, has simple and convenient preparation process, is safe and environment-friendly, can be produced in a large scale, has excellent mechanical property and moisture resistance, can meet the plate requirements of daily family decoration, and has greater economic value and application prospect.

Description

Environment-friendly moisture-proof density board and preparation method thereof
Technical Field
The invention relates to an environment-friendly moisture-proof density board and a preparation method thereof.
Background
The density board (mediumdensity fiber board (mdf)) is a board made of wood fiber or other plant fiber as raw material, and is prepared by preparing fiber, applying synthetic resin, and pressing under heating and pressing. The density board has the advantages of uniform structure, fine material, stable performance, impact resistance and easy processing, and is widely applied to domestic furniture, decoration, musical instruments, packaging and the like.
The biggest defect of the density board is that the density board is not moisture-proof and swells when meeting water. The density board has large water swelling rate and large deformation, and the long-time bearing deformation is larger than that of a homogeneous solid wood particle board.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an environment-friendly moisture-proof density board and a preparation method thereof.
The above purpose of the invention is realized by the following technical scheme:
an environment-friendly moisture-proof density board is composed of the following raw materials in parts by weight: 45-55 parts of plant fiber environment-friendly material, 15-25 parts of soybean residue powder, 10-20 parts of egg shell, 20-30 parts of coal cinder, 10-18 parts of modified nano-silica, 6-10 parts of nano-carbon black, 8-14 parts of titanium dioxide, 3-5 parts of ammonium polyphosphate, 5-10 parts of sodium dodecyl sulfate, 8-10 parts of adhesive and 12-16 parts of ultraviolet absorbent.
Further, the preparation steps of the modified nano-silica are as follows: weighing a certain amount of gamma-MPS, adding 80% ethanol water solution by volume fraction, and hydrolyzing for 1h at room temperature; mixing SiO2Drying at 120 deg.C for 12h, adding 80% ethanol water solution, and ultrasonic dispersing for 30 min; mixing the two solutions, pouring into a flask, heating to 85-95 deg.C, stirring, reacting for 9-11h, cooling to room temperature after reaction, centrifuging, washing with anhydrous ethanol repeatedly to remove unreacted coupling agent, vacuum drying, and drying in a dryer to obtain SiO2(ii)/γ -MPS; mixing SiO2adding/gamma-MPS powder into anhydrous ethanol, ultrasonically dispersing for 30min, pouring the suspension into a three-neck flask, stirring, heating to 85-95 deg.C, adding a small amount of AIBN while introducing N2After the AIBN is completely dissolved, adding MMA dropwise, reacting for 7-9h, cooling, centrifugally separating, repeatedly washing with absolute ethyl alcohol, removing unreacted MMA, and fully drying by a vacuum drying oven to obtain the composite material.
Further, the density board is composed of the following raw materials in parts by weight: 45 parts of plant fiber environment-friendly material, 15 parts of soybean residue powder, 10 parts of egg shell, 20 parts of coal cinder, 10 parts of modified nano-silica, 6 parts of nano-carbon black, 8 parts of titanium dioxide, 3 parts of ammonium polyphosphate, 5 parts of sodium dodecyl sulfate, 8 parts of adhesive and 12 parts of ultraviolet absorbent.
Further, the density board is composed of the following raw materials in parts by weight: 50 parts of plant fiber environment-friendly materials, 20 parts of soybean residue powder, 15 parts of egg shells, 25 parts of coal cinder, 14 parts of modified nano-silica, 8 parts of nano-carbon black, 11 parts of titanium dioxide, 4 parts of ammonium polyphosphate, 7 parts of sodium dodecyl sulfate, 9 parts of adhesive and 14 parts of ultraviolet absorbent.
Further, the density board is composed of the following raw materials in parts by weight: 55 parts of plant fiber environment-friendly material, 25 parts of soybean residue powder, 20 parts of egg shell, 30 parts of coal cinder, 18 parts of modified nano-silica, 10 parts of nano-carbon black, 14 parts of titanium dioxide, 5 parts of ammonium polyphosphate, 10 parts of sodium dodecyl sulfate, 10 parts of adhesive and 16 parts of ultraviolet absorbent.
The preparation method of any one of the density boards comprises the following steps: (1) putting the plant fiber environment-friendly material, the soybean dregs, the egg shells and the coal cinder in proportion into a grinder, grinding and mixing to obtain a raw material A; (2) placing the raw material A, the modified nano-silica, the nano-carbon black, the titanium dioxide, the ammonium polyphosphate, the lauryl sodium sulfate, the adhesive and the ultraviolet absorbent in a corresponding proportion into a stirrer to be stirred for 35-45min to obtain a raw material B, and keeping the temperature at 44-46 ℃; (3) drying the raw material B in a dryer for 10-20min, removing water to obtain a raw material C, and keeping the temperature of the dryer at 64-66 ℃; (4) and (3) feeding the raw material C into a cold press, and carrying out cold press molding to obtain the density board, wherein the working pressure of the cold press is kept at 14-16Mpa, and the thickness of the density board is kept at 12-14 mm.
Has the advantages that:
the invention utilizes the waste materials of soybean dregs, egg shells, coal cinder and the like, saves solid wood resources, has simple and convenient preparation process, is safe and environment-friendly, can be produced in a large scale, has excellent mechanical property and moisture resistance, can meet the plate requirements of daily family decoration, and has greater economic value and application prospect.
Detailed Description
The following examples are given to illustrate the essence of the present invention, but not to limit the scope of the present invention.
Example 1:
an environment-friendly moisture-proof density board is composed of the following raw materials in parts by weight: 50 parts of plant fiber environment-friendly materials, 20 parts of soybean residue powder, 15 parts of egg shells, 25 parts of coal cinder, 14 parts of modified nano-silica, 8 parts of nano-carbon black, 11 parts of titanium dioxide, 4 parts of ammonium polyphosphate, 7 parts of sodium dodecyl sulfate, 9 parts of adhesive and 14 parts of ultraviolet absorbent.
The preparation steps of the modified nano silicon dioxide are as follows: weighing a certain amount of gamma-MPS, adding 80% ethanol water solution by volume fraction, and hydrolyzing for 1h at room temperature; mixing SiO2Drying at 120 deg.C for 12h, adding 80% ethanol water solution, and ultrasonic dispersing for 30 min; mixing the two, pouring into a flask, heating to 85 deg.C, stirring, reacting for 9h, cooling to room temperature after reaction, centrifuging, washing with anhydrous ethanol repeatedly to remove unreacted coupling agent, drying in vacuum drying oven, and drying in a dryer to obtain SiO2(ii)/γ -MPS; mixing SiO2adding/gamma-MPS powder into anhydrous ethanol, ultrasonically dispersing for 30min, pouring the suspension into a three-neck flask, stirring, heating to 85 deg.C, adding a small amount of AIBN while introducing N2After the AIBN is completely dissolved, adding MMA dropwise, reacting for 7h, cooling, centrifugally separating, repeatedly washing with absolute ethyl alcohol, removing unreacted MMA, and fully drying by a vacuum drying oven to obtain the composite material.
The preparation method of the density board comprises the following steps: (1) putting the plant fiber environment-friendly material, the soybean dregs, the egg shells and the coal cinder in proportion into a grinder, grinding and mixing to obtain a raw material A; (2) placing the raw material A, the modified nano-silica, the nano-carbon black, the titanium dioxide, the ammonium polyphosphate, the lauryl sodium sulfate, the adhesive and the ultraviolet absorbent in a corresponding proportion into a stirrer to be stirred for 35min to obtain a raw material B, and keeping the temperature at 44 ℃; (3) drying the raw material B in a dryer for 10min, removing water to obtain a raw material C, and keeping the temperature of the dryer at 64 ℃; (4) and (3) feeding the raw material C into a cold press, and carrying out cold press molding to obtain the density board, wherein the working pressure of the cold press is kept at 14Mpa, and the thickness of the density board is kept at 12 mm.
Example 2:
an environment-friendly moisture-proof density board is composed of the following raw materials in parts by weight: 50 parts of plant fiber environment-friendly materials, 20 parts of soybean residue powder, 15 parts of egg shells, 25 parts of coal cinder, 14 parts of modified nano-silica, 8 parts of nano-carbon black, 11 parts of titanium dioxide, 4 parts of ammonium polyphosphate, 7 parts of sodium dodecyl sulfate, 9 parts of adhesive and 14 parts of ultraviolet absorbent.
The preparation steps of the modified nano silicon dioxide are as follows: weighing a certain amount of gamma-MPS, adding 80% ethanol water solution by volume fraction, and hydrolyzing for 1h at room temperature; mixing SiO2Drying at 120 deg.C for 12h, adding 80% ethanol water solution, and ultrasonic dispersing for 30 min; mixing the two solutions, pouring into a flask, heating to 90 deg.C, stirring, reacting for 10h, cooling to room temperature after reaction, centrifuging, washing with anhydrous ethanol repeatedly to remove unreacted coupling agent, drying in vacuum drying oven, and drying in a dryer to obtain SiO2(ii)/γ -MPS; mixing SiO2adding/gamma-MPS powder into anhydrous ethanol, ultrasonically dispersing for 30min, pouring the suspension into a three-neck flask, stirring, heating to 90 deg.C, adding a small amount of AIBN while introducing N2After the AIBN is completely dissolved, adding MMA dropwise, reacting for 8h, cooling, centrifugally separating, repeatedly washing with absolute ethyl alcohol, removing unreacted MMA, and fully drying by a vacuum drying oven to obtain the composite material.
The preparation method of the density board comprises the following steps: (1) putting the plant fiber environment-friendly material, the soybean dregs, the egg shells and the coal cinder in proportion into a grinder, grinding and mixing to obtain a raw material A; (2) placing the raw material A, the modified nano-silica, the nano-carbon black, the titanium dioxide, the ammonium polyphosphate, the lauryl sodium sulfate, the adhesive and the ultraviolet absorbent in a corresponding proportion into a stirrer to be stirred for 40min to obtain a raw material B, and keeping the temperature at 45 ℃; (3) putting the raw material B into a dryer to be dried for 15min, and removing water to obtain a raw material C, wherein the temperature of the dryer is kept at 65 ℃; (4) and (3) feeding the raw material C into a cold press, and carrying out cold press molding to obtain the density board, wherein the working pressure of the cold press is kept at 15Mpa, and the thickness of the density board is kept at 13 mm.
Example 3:
an environment-friendly moisture-proof density board is composed of the following raw materials in parts by weight: 55 parts of plant fiber environment-friendly material, 25 parts of soybean residue powder, 20 parts of egg shell, 30 parts of coal cinder, 18 parts of modified nano-silica, 10 parts of nano-carbon black, 14 parts of titanium dioxide, 5 parts of ammonium polyphosphate, 10 parts of sodium dodecyl sulfate, 10 parts of adhesive and 16 parts of ultraviolet absorbent.
The preparation steps of the modified nano silicon dioxide are as follows: weighing oneAdding a quantitative gamma-MPS into an ethanol water solution with the volume fraction of 80%, and hydrolyzing for 1h at room temperature; mixing SiO2Drying at 120 deg.C for 12h, adding 80% ethanol water solution, and ultrasonic dispersing for 30 min; mixing the two solutions, pouring into a flask, heating to 95 deg.C, stirring, reacting for 11h, cooling to room temperature after reaction, centrifuging, washing with anhydrous ethanol repeatedly to remove unreacted coupling agent, drying in vacuum drying oven, and drying in a dryer to obtain SiO2(ii)/γ -MPS; mixing SiO2adding/gamma-MPS powder into anhydrous ethanol, ultrasonically dispersing for 30min, pouring the suspension into a three-neck flask, stirring, heating to 95 deg.C, adding a small amount of AIBN while introducing N2After the AIBN is completely dissolved, adding MMA dropwise, reacting for 9h, cooling, centrifugally separating, repeatedly washing with absolute ethyl alcohol, removing unreacted MMA, and fully drying by a vacuum drying oven to obtain the composite material.
The preparation method of the density board comprises the following steps: (1) putting the plant fiber environment-friendly material, the soybean dregs, the egg shells and the coal cinder in proportion into a grinder, grinding and mixing to obtain a raw material A; (2) placing the raw material A, the modified nano-silica, the nano-carbon black, the titanium dioxide, the ammonium polyphosphate, the lauryl sodium sulfate, the adhesive and the ultraviolet absorbent in a corresponding proportion into a stirrer to be stirred for 45min to obtain a raw material B, and keeping the temperature at 46 ℃; (3) drying the raw material B in a dryer for 20min, and removing water to obtain a raw material C, wherein the temperature of the dryer is kept at 66 ℃; (4) and (3) feeding the raw material C into a cold press, and carrying out cold press molding to obtain the density board, wherein the working pressure of the cold press is kept at 16Mpa, and the thickness of the density board is kept at 14 mm.
The invention utilizes the waste materials of soybean dregs, egg shells, coal cinder and the like, saves solid wood resources, has simple and convenient preparation process, is safe and environment-friendly, can be produced in a large scale, has excellent mechanical property and moisture resistance, can meet the plate requirements of daily family decoration, and has greater economic value and application prospect.
The above-described embodiments are intended to be illustrative of the nature of the invention, but those skilled in the art will recognize that the scope of the invention is not limited to the specific embodiments.

Claims (6)

1. The environment-friendly moisture-proof density board is characterized by comprising the following raw materials in parts by weight: 45-55 parts of plant fiber environment-friendly material, 15-25 parts of soybean residue powder, 10-20 parts of egg shell, 20-30 parts of coal cinder, 10-18 parts of modified nano-silica, 6-10 parts of nano-carbon black, 8-14 parts of titanium dioxide, 3-5 parts of ammonium polyphosphate, 5-10 parts of sodium dodecyl sulfate, 8-10 parts of adhesive and 12-16 parts of ultraviolet absorbent.
2. The density board of claim 1, wherein the modified nano-silica is prepared by the following steps: weighing a certain amount of gamma-MPS, adding 80% ethanol water solution by volume fraction, and hydrolyzing for 1h at room temperature; mixing SiO2Drying at 120 deg.C for 12h, adding 80% ethanol water solution, and ultrasonic dispersing for 30 min; mixing the two solutions, pouring into a flask, heating to 85-95 deg.C, stirring, reacting for 9-11h, cooling to room temperature after reaction, centrifuging, washing with anhydrous ethanol repeatedly to remove unreacted coupling agent, vacuum drying, and drying in a dryer to obtain SiO2(ii)/γ -MPS; mixing SiO2adding/gamma-MPS powder into anhydrous ethanol, ultrasonically dispersing for 30min, pouring the suspension into a three-neck flask, stirring, heating to 85-95 deg.C, adding a small amount of AIBN while introducing N2After the AIBN is completely dissolved, adding MMA dropwise, reacting for 7-9h, cooling, centrifugally separating, repeatedly washing with absolute ethyl alcohol, removing unreacted MMA, and fully drying by a vacuum drying oven to obtain the composite material.
3. The density board of claim 1, which is prepared from the following raw materials in parts by weight: 45 parts of plant fiber environment-friendly material, 15 parts of soybean residue powder, 10 parts of egg shell, 20 parts of coal cinder, 10 parts of modified nano-silica, 6 parts of nano-carbon black, 8 parts of titanium dioxide, 3 parts of ammonium polyphosphate, 5 parts of sodium dodecyl sulfate, 8 parts of adhesive and 12 parts of ultraviolet absorbent.
4. The density board of claim 1, which is prepared from the following raw materials in parts by weight: 50 parts of plant fiber environment-friendly materials, 20 parts of soybean residue powder, 15 parts of egg shells, 25 parts of coal cinder, 14 parts of modified nano-silica, 8 parts of nano-carbon black, 11 parts of titanium dioxide, 4 parts of ammonium polyphosphate, 7 parts of sodium dodecyl sulfate, 9 parts of adhesive and 14 parts of ultraviolet absorbent.
5. The density board of claim 1, which is prepared from the following raw materials in parts by weight: 55 parts of plant fiber environment-friendly material, 25 parts of soybean residue powder, 20 parts of egg shell, 30 parts of coal cinder, 18 parts of modified nano-silica, 10 parts of nano-carbon black, 14 parts of titanium dioxide, 5 parts of ammonium polyphosphate, 10 parts of sodium dodecyl sulfate, 10 parts of adhesive and 16 parts of ultraviolet absorbent.
6. The method of making a density board according to any of claims 1-5, comprising the steps of: (1) putting the plant fiber environment-friendly material, the soybean dregs, the egg shells and the coal cinder in proportion into a grinder, grinding and mixing to obtain a raw material A; (2) placing the raw material A, the modified nano-silica, the nano-carbon black, the titanium dioxide, the ammonium polyphosphate, the lauryl sodium sulfate, the adhesive and the ultraviolet absorbent in a corresponding proportion into a stirrer to be stirred for 35-45min to obtain a raw material B, and keeping the temperature at 44-46 ℃; (3) drying the raw material B in a dryer for 10-20min, removing water to obtain a raw material C, and keeping the temperature of the dryer at 64-66 ℃; (4) and (3) feeding the raw material C into a cold press, and carrying out cold press molding to obtain the density board, wherein the working pressure of the cold press is kept at 14-16Mpa, and the thickness of the density board is kept at 12-14 mm.
CN201911389324.8A 2019-12-30 2019-12-30 Environment-friendly moisture-proof density board and preparation method thereof Pending CN113119268A (en)

Priority Applications (1)

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CN201911389324.8A CN113119268A (en) 2019-12-30 2019-12-30 Environment-friendly moisture-proof density board and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911389324.8A CN113119268A (en) 2019-12-30 2019-12-30 Environment-friendly moisture-proof density board and preparation method thereof

Publications (1)

Publication Number Publication Date
CN113119268A true CN113119268A (en) 2021-07-16

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CN (1) CN113119268A (en)

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Application publication date: 20210716