CN115383863B - Light-transmitting bamboo shaving board capable of customizing patterns and preparation method thereof - Google Patents

Light-transmitting bamboo shaving board capable of customizing patterns and preparation method thereof Download PDF

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Publication number
CN115383863B
CN115383863B CN202211059412.3A CN202211059412A CN115383863B CN 115383863 B CN115383863 B CN 115383863B CN 202211059412 A CN202211059412 A CN 202211059412A CN 115383863 B CN115383863 B CN 115383863B
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bamboo
light
shaving board
transmitting
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CN115383863A (en
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陈奶荣
朱志强
涂伊静
叶世俊
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Furen Group Forest Industry Co ltd
Fujian Agriculture and Forestry University
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Furen Group Forest Industry Co ltd
Fujian Agriculture and Forestry University
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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
    • B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
    • 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
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent
    • B27N1/0209—Methods, e.g. characterised by the composition of the agent
    • 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
    • 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
    • B27N3/14—Distributing or orienting the particles or 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
    • B27N3/203—Moulding or pressing characterised by using platen-presses with heating or cooling means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

The invention provides a light-transmitting bamboo shaving board with customizable patterns and a preparation method thereof, and in the manufacturing process of the light-transmitting bamboo shaving board, the light-transmitting bamboo shaving board has an excellent bonding function on a bamboo base material due to the adoption of a special adhesive, so that the effects of no need of removing green and yellow bamboos and high efficiency and energy conservation in the bamboo chipping process are achieved; isocyanate groups in the adhesive, polyvinyl alcohol and active groups in the biomass material, such as hydroxyl, carboxyl and the like, are crosslinked into a three-dimensional network structure to effectively wrap the optical fiber, so that the synergistic effect between the optical fiber and the bamboo wood can be enhanced, and the mechanical strength of the plate can be improved; the addition of optical fibers and their manner also produce excellent results.

Description

Light-transmitting bamboo shaving board capable of customizing patterns and preparation method thereof
Technical Field
The invention particularly relates to a light-transmitting bamboo shaving board capable of customizing patterns and a preparation method thereof.
Background
Particle board products have found wide application in the market place. Various new products of research and development mainly are concentrated on improving the gluing agent that the shaving board was used, realize promoting shaving board mechanical properties, reduce effects such as free formaldehyde content. For example, patent publications CN106671242A and CN106985257A disclose methods for producing shaving boards with low free formaldehyde content; the invention patents with publication numbers of CN114083638A, CN 1136966285A, CN113580312A and the like all relate to improving the strength of the shaving board. Bamboo shaving boards made of bamboo materials are increasing day by day in the industry, and the research direction is similar to that of other shaving boards, for example, the invention patent with the publication number of CN113524378A discloses a light high-strength bamboo oriented shaving board and a preparation method thereof, and the invention patents with the publication numbers of CN109531763A and CN 106827827161A both disclose preparation methods of environment-friendly aldehyde-free bamboo shaving boards. The results reported in a large number of documents mainly concern the mechanical and environmental performance of the bamboo shaving board, but do not have research and patents on the aspect of customizing decorative characteristic effects of the bamboo shaving board.
Based on the scheme, the invention provides a light-transmitting bamboo shaving board with customizable patterns and a preparation method thereof.
Disclosure of Invention
The invention aims to provide a light-transmitting bamboo shaving board with customizable patterns and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of a light-transmitting bamboo shaving board with customizable patterns comprises the following steps:
step A: preparation of special formaldehyde-free adhesive
(1) Uniformly mixing chitin powder, defatted soybean powder, camellia seed meal and cottonseed meal with the mesh number of 100 meshes according to equal weight to prepare a biomass mixture for later use;
(2) Mixing 10-20 parts by weight of polyvinyl alcohol and 80-90 parts by weight of distilled water in a container, placing in water at 100 ℃, preserving heat for 2 hours to prepare polyvinyl alcohol solution, and cooling to room temperature for later use;
(3) Uniformly mixing 10-20 parts by weight of the biomass mixture obtained in the step (1) with 80-120 parts by weight of the polyvinyl alcohol solution obtained in the step (2) at room temperature, adding 0.3 part by weight of N-aminoethyl-gamma-aminopropyltriethoxysilane (a coupling agent, so that the interface performance of bamboo and an adhesive is improved, the bonding effect is improved), and continuously stirring for 20min;
(4) And (4) adding 5-10 parts by weight of aliphatic isocyanate into the step (3), and uniformly mixing to obtain the special formaldehyde-free adhesive.
And B, step B: preparation of light-transmitting bamboo shaving board
1) Stirring the moso bamboo shavings in a roller, spraying the special formaldehyde-free adhesive in the step A with the weight of 3-10% of the moso bamboo shavings, and stirring for 30min.
2) Uniformly paving 1/3 weight parts of the glue-applied moso bamboo shavings obtained in the step 1) into a mould to be used as a bottom layer of a shaving board; 1/3 of the glued moso bamboo shavings are used as an intermediate layer, optical fibers are randomly added in a transverse and longitudinal crossing mode or arranged into patterns during the process of paving the intermediate layer, and two ends of the same optical fiber are exposed out of the side edge of the board; and finally, using 1/3 weight part of glued moso bamboo shavings as a surface layer. Prepressing at 0.4-0.6MPa for 10min, and hot pressing at 150-200 deg.C for 0.5-1min to obtain light-transmitting bamboo shaving board.
Furthermore, the optical fiber is glass fiber, the diameter of the optical fiber is 40-400 um, and the length of the optical fiber is 1.5-3m.
Furthermore, the width of the moso bamboo shavings is 0.3-3 mm.
The principle is as follows: arranging the fibers in the shaving board blank in a manner of longitudinal and transverse spacing or a customized pattern by utilizing the light guide characteristic of the glass fibers; when the light source irradiates from one end of the side surface, the light can penetrate from the other end, and the beautiful decorative effect is generated.
The invention has the advantages that:
in the manufacturing process of the light-transmitting bamboo shaving board, the special adhesive is adopted, so that the light-transmitting bamboo shaving board has an excellent bonding function on the bamboo base material, and the effects of no need of removing bamboo green and bamboo yellow and high efficiency and energy conservation are achieved in the bamboo chipping process; isocyanate groups in the adhesive are crosslinked with active groups in polyvinyl alcohol and biomass materials, such as hydroxyl, carboxyl and the like, to form a three-dimensional network structure, so that the optical fiber is effectively wrapped, the synergistic effect between the optical fiber and bamboo wood can be enhanced, and the mechanical strength of the plate can be improved; the addition of optical fibres and their manner also produce excellent results: the static bending strength and the elastic modulus of the plate are enhanced; (2) the plate can be transparent in 4 directions; (3) The arrangement mode of the optical fibers can be designed according to needs, and the light-transmitting patterns can be customized; (4) The optical fiber is made of glass fiber, and is pressure-resistant, high-temperature-resistant and can not be changed by heating. The prepared shaving board does not contain formaldehyde, is nontoxic and environment-friendly and can reach E NF The grade is suitable for various indoor and outdoor decoration occasions, and the application prospect is wide.
Detailed Description
In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below. The method of the present invention is a method conventionally used in the art unless otherwise specified.
The optical fibers used in the following examples were glass fibers having a diameter of 100 um and a length of 2m. The width of the used mao bamboo shavings is 1 mm. The aliphatic isocyanate used was hexamethylene-1, 6-diisocyanate HDI.
Example 1
A preparation method of a light-transmitting bamboo shaving board capable of customizing patterns comprises the following steps:
step A: preparation of special formaldehyde-free adhesive
(1) Uniformly mixing chitin powder, defatted soybean powder, camellia seed meal and cottonseed meal with the mesh number of 100 meshes according to equal weight to prepare a biomass mixture for later use;
(2) Mixing 15 parts by weight of polyvinyl alcohol and 85 parts by weight of distilled water in a container, placing in water at 100 ℃, preserving heat for 2 hours to prepare a polyvinyl alcohol solution, and cooling to room temperature for later use;
(3) Uniformly mixing 15 parts by weight of the biomass mixture in the step (1) with 100 parts by weight of the polyvinyl alcohol solution in the step (2) at room temperature, adding 0.3 part by weight of N-aminoethyl-gamma-aminopropyltriethoxysilane, and continuously stirring for 20min;
(4) And (4) adding 8 parts by weight of aliphatic isocyanate into the step (3), and uniformly mixing to obtain the special formaldehyde-free adhesive.
And B: preparation of light-transmitting bamboo shaving board
1) Stirring the moso bamboo shavings in a roller, spraying the special formaldehyde-free adhesive in the step A with the weight of 6% of the moso bamboo shavings, and stirring for 30min.
2) Uniformly paving 1/3 weight parts of the glue-applied moso bamboo shavings obtained in the step 1) into a mould to be used as a bottom layer of a shaving board; 1/3 of the glued moso bamboo shavings are used as an intermediate layer, optical fibers are randomly added in a transverse and longitudinal crossing mode or arranged into patterns during the process of paving the intermediate layer, and two ends of the same optical fiber are exposed out of the side edge of the board; and finally, using 1/3 weight part of glued moso bamboo shavings as a surface layer. Prepressing at 0.5MPa for 10min, feeding into a hot press, and hot pressing at 180 deg.C for 0.8min to obtain light-transmitting bamboo shaving board with thickness of 5 mm.
Example 2
A preparation method of a light-transmitting bamboo shaving board with customizable patterns comprises the following steps:
step A: preparation of special formaldehyde-free adhesive
(1) Uniformly mixing chitin powder, defatted soybean powder, camellia seed meal and cottonseed meal with the mesh number of 100 meshes according to equal weight to prepare a biomass mixture for later use;
(2) Mixing 10 parts by weight of polyvinyl alcohol and 80 parts by weight of distilled water in a container, placing in water at 100 ℃, preserving heat for 2 hours to prepare a polyvinyl alcohol solution, and cooling to room temperature for later use;
(3) Uniformly mixing 10 parts by weight of the biomass mixture in the step (1) with 80 parts by weight of the polyvinyl alcohol solution in the step (2) at room temperature, adding 0.3 part by weight of N-aminoethyl-gamma-aminopropyltriethoxysilane, and continuously stirring for 20min;
(4) And (4) adding 5 parts by weight of aliphatic isocyanate into the step (3), and uniformly mixing to obtain the special formaldehyde-free adhesive.
And B: preparation of light-transmitting bamboo shaving board
1) Stirring the moso bamboo shavings in a roller, spraying the special formaldehyde-free adhesive in the step A with the weight of 3% of the moso bamboo shavings, and stirring for 30min.
2) Uniformly paving 1/3 weight parts of the glue-applied moso bamboo shavings obtained in the step 1) into a mould to be used as a bottom layer of a shaving board; 1/3 of the glued moso bamboo shavings are used as an intermediate layer, optical fibers are randomly added in a transverse and longitudinal crossing mode or arranged into patterns during the process of paving the intermediate layer, and two ends of the same optical fiber are exposed out of the side edge of the board; and finally, using 1/3 weight part of glued moso bamboo shavings as a surface layer. Prepressing at 0.4MPa for 10min, feeding into a hot press, and hot pressing at 150 deg.C for 0.5min to obtain light-transmitting bamboo shaving board with thickness of 5 mm.
Example 3
A preparation method of a light-transmitting bamboo shaving board with customizable patterns comprises the following steps:
step A: preparation of special formaldehyde-free adhesive
(1) Uniformly mixing chitin powder, defatted soybean powder, camellia seed meal and cottonseed meal with the mesh number of 100 meshes according to equal weight to prepare a biomass mixture for later use;
(2) Mixing 20 parts by weight of polyvinyl alcohol and 90 parts by weight of distilled water in a container, putting the mixture into water at 100 ℃, preserving the heat for 2 hours to prepare polyvinyl alcohol solution, and cooling the polyvinyl alcohol solution to room temperature for later use;
(3) Uniformly mixing 20 parts by weight of the biomass mixture in the step (1) with 120 parts by weight of the polyvinyl alcohol solution in the step (2) at room temperature, adding 0.3 part by weight of N-aminoethyl-gamma-aminopropyltriethoxysilane, and continuously stirring for 20min;
(4) And (4) adding 10 parts by weight of aliphatic isocyanate into the step (3), and uniformly mixing to obtain the special formaldehyde-free adhesive.
And B, step B: preparation of light-transmitting bamboo shaving board
1) And C, stirring the moso bamboo shavings in a roller, spraying the special formaldehyde-free adhesive in the step A, wherein the weight of the special formaldehyde-free adhesive is 10% of that of the moso bamboo shavings, and stirring for 30min.
2) Uniformly paving 1/3 of the glued moso bamboo wood shavings in the step 1) into a mould to be used as a bottom layer of a shaving board; 1/3 of the glued moso bamboo shavings are used as an intermediate layer, optical fibers are randomly added in a transverse and longitudinal crossing mode or arranged into patterns during the process of paving the intermediate layer, and two ends of the same optical fiber are exposed out of the side edge of the board; and finally, taking 1/3 of the glued moso bamboo wood shavings as a surface layer. Prepressing for 10min at a unit pressure of 0.6MPa, feeding into a hot press, and hot-pressing at 200 deg.C for 1min to obtain a light-transmitting bamboo shaving board with a thickness of 5 mm.
Figure 312466DEST_PATH_IMAGE001
Note: the comparative group 1 series of light-transmitting bamboo chipboard respectively means that no optical fiber is added in the examples 1-3, and the rest of the operation is the same as the examples 1-3; the comparative group 2 series of light-transmitting bamboo particle boards respectively refer to the replacement of the special formaldehyde-free adhesive in the examples 1-3 with the common urea-formaldehyde resin adhesive, and the rest of the operations are the same as the examples 1-3.
The above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.

Claims (4)

1. A preparation method of a light-transmitting bamboo shaving board capable of customizing patterns is characterized by comprising the following steps:
1) Stirring the moso bamboo shavings in a roller, spraying a special formaldehyde-free adhesive which accounts for 3-10% of the weight of the moso bamboo shavings at the same time, and stirring for 30min;
2) 1/3 of the glue applied moso bamboo shavings are uniformly paved into a mould to be used as a shaving board bottom layer; 1/3 of the glue-applied moso bamboo shavings are used as an intermediate layer, optical fibers are randomly added in a transverse and longitudinal crossing mode or are arranged into patterns and added in the process of paving the intermediate layer, and the two ends of the same optical fiber are exposed out of the side edge of the board; finally, 1/3 of the glued moso bamboo shavings are used as surface layers, pre-pressed for 10min under the unit pressure of 0.4-0.6MPa, sent into a hot press, and hot-pressed for 0.5-1min at the temperature of 150-200 ℃ to prepare the light-transmitting bamboo shaving board;
the preparation method of the special formaldehyde-free adhesive comprises the following steps:
(1) Uniformly mixing chitin powder, defatted soybean powder, camellia seed meal and cottonseed meal with the mesh number of 100 meshes according to equal weight to prepare a biomass mixture for later use;
(2) Mixing 10-20 parts by weight of polyvinyl alcohol and 80-90 parts by weight of distilled water in a container, placing in water at 100 ℃, preserving heat for 2 hours to prepare polyvinyl alcohol solution, and cooling to room temperature for later use;
(3) Uniformly mixing 10-20 parts by weight of the biomass mixture in the step (1) with 80-120 parts by weight of the polyvinyl alcohol solution in the step (2) at room temperature, adding 0.3 part by weight of coupling agent N-aminoethyl-gamma-aminopropyltriethoxysilane, and continuously stirring for 20min;
(4) And (4) adding 5-10 parts by weight of aliphatic isocyanate into the step (3), and uniformly mixing to obtain the special formaldehyde-free adhesive.
2. The method of claim 1, wherein the optical fiber is a glass fiber having a diameter of 40 to 400 um and a length of 1.5 to 3m.
3. The method of claim 1, wherein the width of the moso bamboo strands is 0.3 to 3 mm.
4. A light-transmitting bamboo particle board with customizable patterns prepared by the preparation method according to any one of claims 1 to 3.
CN202211059412.3A 2022-08-31 2022-08-31 Light-transmitting bamboo shaving board capable of customizing patterns and preparation method thereof Active CN115383863B (en)

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US7163305B2 (en) * 2003-06-25 2007-01-16 Gemtron Corporation Illuminated shelf
FR2922149B1 (en) * 2007-10-10 2011-06-10 Alstom Transport Sa METHOD FOR WELDING TWO ELEMENTS OF OPAQUE POLYMERIC MATERIAL AND RESISTANT AT HIGH TEMPERATURE
CN101402842B (en) * 2008-11-18 2011-08-10 福建农林大学 Acid-salt-alkali combined modified soya glue adhesive and method of producing the same
CN101402843B (en) * 2008-11-18 2011-02-09 福建农林大学 Metallic ion and active compound combined modified plant albumin glue adhesive and method of producing the same
CN105582864B (en) * 2016-03-03 2018-02-13 福建农林大学 A kind of vegetable protein aeroge and preparation method thereof
CN107986693B (en) * 2017-12-11 2020-11-24 南京倍立达新材料***工程股份有限公司 Photocatalytic light-transmitting cement product and production method thereof

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