Preparation method of medium-density restructured fiberboard
A technology of fiberboard and medium density, which is applied in the direction of manufacturing tools, flat products, and pretreatment of molding materials. It can solve the problems of easy mildew of fiberboard and high energy consumption in the separation process, and achieve the effect of improving static bending strength.
Inactive Publication Date: 2017-03-08
ZHEJIANG FORESTRY UNIVERSITY
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide a method for preparing medium density recombined fiberboard with low energy consumption and not easy to mildew, aiming at the problems of high energy consumption in the fiber separation process of medium density fiberboard and easy mildew of the fiberboard
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Embodiment Construction
[0038] In order to facilitate understanding of the present invention, the present invention enumerates the following examples. Those skilled in the art should understand that the examples are only used to help understand the present invention, and should not be regarded as specific limitations on the present invention.
[0039] Unless otherwise specified, various raw materials of the present invention can be obtained commercially; or prepared according to conventional methods in the art. Unless otherwise defined or stated, all professional and scientific terms used herein have the same meaning as is familiar to those skilled in the art. In addition, any methods and materials similar or equivalent to those described can be applied to the method of the present invention. Unless otherwise indicated, all professional and scientific terms used herein have the same meaning as is familiar to those skilled in the art.
[0040] A kind of preparation method of medium-density recombine...
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Abstract
The invention discloses a preparation method of a medium-density restructured fiberboard. According to the preparation method, fiber separation is conducted by a 'long thin wood sheet heat treatment-rubbing treatment combined method', and the energy consumption is 30 to 50 percent of the energy consumption of the existing method for performing fiber separation by a defibrator. The length of a wood fiber filament prepared by the method is 6 to 10 times that of the existing wood fiber, and directional restructuring of the wood fiber is realized, so that the static bending intensity of the medium-density fiberboard is increased by 10 to 25 percent. Meanwhile, the anti-mold property of the medium-density fiber is increased from 3 to 4 levels at present to 0 to 1 level.
Description
technical field [0001] The invention belongs to the field of wood processing, and in particular relates to a preparation method of a medium-density recombined fiberboard. Background technique [0002] In wood processing, MDF has been widely used in the furniture industry due to its moderate density, uniform structure, and excellent processing performance. But MDF also has the following disadvantages: (1) the energy consumption of the wood separation into fiber process in fiber manufacturing is very large, and its energy consumption accounts for about 50% of the entire MDF production energy consumption; (2) when the humidity is high Areas and humid places are prone to damp and mildew, which reduces the performance of the product and pollutes the living environment. [0003] Therefore, it has become an urgent problem to be solved in the production of medium density fiberboard to develop a new preparation method of medium density fiberboard, greatly reduce the energy consumpti...
Claims
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IPC IPC(8): B27N3/12B27N3/00B27N3/14B27N1/02B27N1/00C08L61/24C08L61/06B27K5/06B27K5/00B27L11/08
CPCB27N3/12B27K5/0085B27K5/06B27L11/08B27N1/00B27N1/0209B27N3/002B27N3/143C08L61/24C08L2205/02
Inventor 杜春贵金春德王进李松武斌
Owner ZHEJIANG FORESTRY UNIVERSITY