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Natural mildew-proof sound-insulation density board

A density board, natural technology, applied in the direction of manufacturing tools, flat products, household components, etc., can solve the problems that affect the appearance and strength of density boards, affect the use effect of density boards, shorten the service life of density boards, etc., to avoid mildew problems, Improve the effect of antibacterial and anti-mildew, and inhibit the effect of water absorption and deformation

Inactive Publication Date: 2019-11-22
含山县金中环装饰材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Density boards are made of synthetic resin and wood fiber, which can easily absorb water and cause mildew, which affects the appearance and strength of density boards, and shortens the service life of density boards; The sound insulation effect requirements are getting higher and higher
[0003] The existing patent document CN 106079027 A discloses a preparation method for enhancing the sound insulation effect of MDF, which can improve the sound insulation effect of MDF. Formaldehyde is released during later use, and urea-formaldehyde resin has poor water resistance and weather resistance, is easy to absorb water, and easily deforms and molds the density board, which seriously affects the use effect of the density board and reduces the use range of the density board

Method used

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  • Natural mildew-proof sound-insulation density board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of preparation method of natural mildew-proof soundproof density board, comprises the following steps:

[0019] (1) Wood crushing: crush the wood into 3~4cm long and 0.6~1.2cm wide wood segments, soak in acetic acid solution at 2~6°C for 10 hours, which can prolong the length of wood fibers and avoid damage caused by shorter fibers. The density board has low strength, and can avoid the problem of uneven density board structure caused by longer fibers, and improve the strength and durability of the density board. Take it out, drain it, and soak the wood section;

[0020] (2) Drying: Put the soaked wood section in a freeze dryer, and freeze-dry it at -46°C until the water content is 21~23%, so as to increase the porosity of the wood section, reduce fiber breakage during longitudinal rolling, and increase the density of the density board. The strength of the wood section is longitudinally rolled, and the wood fiber is separated to obtain the wood fiber;

[0021] (3...

Embodiment 2

[0027] A kind of preparation method of natural mildew-proof soundproof density board, comprises the following steps:

[0028] (1) Wood crushing: Crush the wood into 3~4cm long and 0.6~1.2cm wide wood segments, soak in acetic acid solution at 2~6°C for 11 hours, which can prolong the length of wood fibers and avoid damage caused by shorter fibers. The density board has low strength, and can avoid the problem of uneven density board structure caused by longer fibers, and improve the strength and durability of the density board. Take it out, drain it, and soak the wood section;

[0029] (2) Drying: Put the soaked wood section in a freeze dryer, and freeze-dry it at -45°C until the water content is 21-23%, increasing the porosity of the wood section, reducing fiber breakage during longitudinal rolling, and improving the density of the density board. The strength of the wood section is longitudinally rolled, and the wood fiber is separated to obtain the wood fiber;

[0030] (3) Mi...

Embodiment 3

[0036] A kind of preparation method of natural mildew-proof soundproof density board, comprises the following steps:

[0037] (1) Wood crushing: crush the wood into 3~4cm long and 0.6~1.2cm wide wood segments, soak in acetic acid solution at 2~6°C for 12 hours, which can prolong the length of wood fibers and avoid damage caused by shorter fibers. The density board has low strength, and can avoid the problem of uneven density board structure caused by longer fibers, and improve the strength and durability of the density board. Take it out, drain it, and soak the wood section;

[0038](2) Drying: Put the soaked wood section in a freeze dryer, and freeze-dry it at -44°C until the water content is 21-23%, increasing the porosity of the wood section, reducing fiber breakage during longitudinal rolling, and improving the density of the density board. The strength of the wood section is longitudinally rolled, and the wood fiber is separated to obtain the wood fiber;

[0039] (3) Mix...

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Abstract

The invention mainly relates to the technical field of artificial board machining, and discloses a preparation method of a natural mildew-proof sound-insulation density board. The preparation method comprises the steps of wood crushing, drying, raw material mixing, glue applying and hot pressing. The preparation method of the natural mildew-proof sound-insulation density board has a natural mildew-proof function, the mildew-proof rate reaches 90.4%, and sound insulation can be effectively performed; the wood is cut into long sections, the sections are soaked in an acetic acid liquid, the length of wood fibers can be prolonged, the problems that the strength of a density board is low due to short fibers and the structure of the density board is uneven due to long fibers can be avoided, andthe strength and practicability of the density board are improved; and the wood sections are subjected to freezing and drying after being soaked, so that the porosity of the sections is increased, breaking of the fibers is reduced during longitudinal rolling, and the strength of the density board is improved.

Description

technical field [0001] The invention mainly relates to the technical field of wood-based panel processing, in particular to a method for preparing a natural mildew-proof and sound-insulating density board. Background technique [0002] Density board, the full name of density fiberboard, is made of wood fiber or other plant fiber as raw material, prepared by fiber, applied with synthetic resin, and pressed under heat and pressure; according to its density, it can be divided into high-density fiberboard, high-density fiberboard, Medium-density fiberboard and low-density fiberboard; MDF is widely used in domestic furniture, decoration, musical instruments and packaging due to its uniform structure, fine material, stable performance, impact resistance and easy processing. Density boards are made of synthetic resin and wood fiber, which can easily absorb water and cause mildew, which affects the appearance and strength of density boards, and shortens the service life of density b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/08B27N3/00B27K3/02B27K3/34B27K5/00B27L11/08C08L97/02C08L75/04C08L67/08C08L23/06C08L3/02
CPCB27K3/02B27K3/34B27K5/0005B27L11/08B27N3/002B27N3/08C08L97/02C08L2205/035C08L75/04C08L67/08C08L23/06C08L3/02
Inventor 郭坤
Owner 含山县金中环装饰材料有限公司
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