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Method for producing super-hydrophobic wood through 3D printing technology

A 3D printing, super-hydrophobic technology, applied in the direction of wood processing appliances, wood veneer bonding, manufacturing tools, etc., can solve the problems of high cost, long processing cycle, complex process, etc., achieve good resistance, improve mechanical Combining strength, simple craftsmanship

Active Publication Date: 2015-03-25
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing wood super-hydrophobic treatment methods require complex processes, long treatment cycles, and high costs. If wood with super-hydrophobic properties can be obtained by using 3D printing technology, it will be revolutionary for those skilled in the art. significance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of method utilizing 3D printing technology of the present invention to prepare superhydrophobic wood, comprises the following steps:

[0025] Step (1): Cut off a intact surface of the picked fresh lotus leaf, flatten it, and use a high-power scanning electron microscope to scan the micro-nano structure on the surface of the lotus leaf, import the scanned picture into the drawing software to obtain a three-dimensional structure model diagram, and then make a model of the model The figure is cut in layers, and the cut model figure is poured into the 3D printer for printing settings. The 3D printer spray hole is equipped with a nozzle with a diameter of 10 μm, and the air is used to pressurize the printing material during spraying, and the pressure is 0.2 MPa, so that the spray concentration and particle release can be controlled and dispersed evenly, and the minimum printing thickness of each layer can reach 10 μm; The accuracy of the distance between the 3D printe...

Embodiment 2

[0030] A kind of method utilizing 3D printing technology of the present invention to prepare superhydrophobic wood, comprises the following steps:

[0031] Step (1): Cut off a intact surface of the picked fresh taro leaf, flatten it and use a high-power scanning electron microscope to scan the micro-nano structure of the taro leaf surface, import the scanned picture into the drawing software to obtain a three-dimensional structure model diagram, and then analyze the model diagram Carry out layered cutting, pour the cut model map into the 3D printer, and set up the printing. The 3D printer spray hole is equipped with a nozzle with a diameter of 100μm, and the air is used to pressurize the printing material during spraying, and the pressure is 0.7MPa, so that the spray concentration and particle release can be controlled, dispersed evenly, and the minimum printing thickness of each layer can reach 10μm; The accuracy of the distance between the 3D printer nozzle and the wood is 1...

Embodiment 3

[0036] A kind of method utilizing 3D printing technology of the present invention to prepare superhydrophobic wood, comprises the following steps:

[0037] Step (1): Using hydrophobic insect wings as templates (in other embodiments, other natural or artificially constructed superhydrophobic surfaces can also be used as templates), intercept a piece of intact hydrophobic insect wing surface, and use high-power scanning after flattening The electron microscope scans the micro-nano structure of the super-hydrophobic surface, imports the scanned image into the drawing software to obtain a three-dimensional structure model map, then cuts the model map layer by layer, and pours the cut model map into a 3D printer for printing settings. The 3D printer spray hole is equipped with a nozzle with a diameter of 50 μm, and the air is used to pressurize the printing material during spraying, and the pressure is 0.5 MPa, so that the spray concentration and particle release can be controlled a...

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Abstract

The invention provides a method for producing super-hydrophobic wood through a 3D printing technology. The method includes the following steps that (1) a natural super-hydrophobic surface or a manually built super-hydrophobic surface serves as a template, a scanning electron microscope is adopted to scan the super-hydrophobic surface, and a three-dimensional structural model graph is obtained; (2) inorganic or organic nano particles are dispersed in a solution containing low-surface-energy organic matter for modification treatment, the modified inorganic or organic nano particles are separated centrifugally, recovered and dried to be used as printing raw materials; (3) the surface of a sawn timber is coated with a resin or adhesive film for predrying; (4) the three-dimensional structural model graph is guided into a 3D printing machine, the surfaces of the predried wood are subjected to 3D printing with the modified nano particles as the printing raw materials, the wood obtained after printing is performed is hardened, and then the super-hydrophobic wood is obtained. The produced super-hydrophobic wood has good weather resistance, and the method is simple in process and suitable for large-area industrial production.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to the field of preparing superhydrophobic wood by using 3D printing technology. Background technique [0002] 3D printing, also known as additive manufacturing, belongs to a kind of rapid prototyping technology. It is a technology that directly manufactures three-dimensional entities of almost arbitrary shapes by reading digital model files. 3D printing technology enables the production and production of models or parts without considering production process issues, and can quickly print out physical models, thereby shortening the product production cycle. Therefore, it has broad application prospects in aerospace and navigation, biomedicine, architectural design, and manufacturing. [0003] Wood is rich in sources, environmentally friendly and renewable, easy to process, and widely used in social and economic construction and human living environment. However, due to its main componen...

Claims

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Application Information

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IPC IPC(8): B27D1/00B27M1/00
CPCB27D1/00B27M1/00
Inventor 吴义强卿彦刘明罗莎张新荔
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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