Method for producing a density board

A production method and technology of MDF, which are used in the joining of wooden veneers, chemical instruments and methods, and layered products, etc., can solve the problems of poor water resistance, short service life, and moisture deformation of MDF, and achieve moisture resistance. Good, reduce the amount of release, the effect of saving energy

Inactive Publication Date: 2018-01-09
徐州雅来基健康科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The adhesive contains formaldehyde, which is very harmful to the human body, and the ordinary density board has poor water resistance, is easily deformed by moisture, and has a short service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Embodiment 1: A kind of production method of density board, the following proportioning by weight is: 30 parts of shavings, 5 parts of corn stalks, 5 parts of cotton stalks, 5 parts of wheat stalks, 5 parts of rice stalks, 3 parts of comfrey, horse 3 parts of purslane, 3 parts of raspberry, 3 parts of salvia miltiorrhiza, 3 parts of fly plum, 3 parts of broken bowl flower, 3 parts of clove, 3 parts of astragalus, 3 parts of honeysuckle, 3 parts of wild chrysanthemum, 3 parts of elm bark, sandalwood 3 parts, 3 parts of camphor wood, soaked in the solution of far-infrared anion powder before the impregnation layer is pressed, and the far-infrared anion powder penetrates into the wood grain of sawdust, and after drying, it is combined with moisture-proof urea-formaldehyde resin adhesive, The refractory adhesive is mixed and pressed into a board, and then pressed with melamine-impregnated paper; the board is formed by two cold presses and three hot presses, and two heat diss...

Embodiment 2

[0012] Embodiment 2: A kind of production method of density board, the following proportioning by weight is: 40 parts of shavings, 10 parts of corn stalks, 10 parts of cotton stalks, 10 parts of wheat stalks, 10 parts of rice stalks, 4 parts of comfrey, horse 4 parts of purslane, 4 parts of raspberry, 4 parts of salvia miltiorrhiza, 4 parts of fly plum, 4 parts of broken bowl flower, 4 parts of clove, 4 parts of astragalus, 4 parts of honeysuckle, 4 parts of wild chrysanthemum, 4 parts of elm bark, sandalwood 4 parts, 4 parts of camphor wood, soaked in the solution of far-infrared anion powder before the impregnation layer is pressed, and the far-infrared anion powder penetrates into the wood grain of sawdust, and after drying, mix with moisture-proof urea-formaldehyde resin adhesive, The refractory adhesive is mixed and pressed into a board, and then pressed with melamine-impregnated paper; the board is formed by two cold presses and three hot presses, and two heat dissipation...

Embodiment 3

[0015] Embodiment 3: A kind of production method of density board, the following proportioning by weight is: 35 parts of shavings, 8 parts of corn stalks, 8 parts of cotton stalks, 8 parts of wheat stalks, 8 parts of rice stalks, 3 parts of comfrey, horse 3 parts of purslane, 4 parts of raspberry, 4 parts of salvia miltiorrhiza, 3 parts of fly plum, 4 parts of broken bowl flower, 3 parts of clove, 3 parts of astragalus, 4 parts of honeysuckle, 4 parts of wild chrysanthemum, 4 parts of elm bark, sandalwood 4 parts, 4 parts of camphor wood, soaked in the solution of far-infrared anion powder before the impregnation layer is pressed, and the far-infrared anion powder penetrates into the wood grain of sawdust, and after drying, mix with moisture-proof urea-formaldehyde resin adhesive, The refractory adhesive is mixed and pressed into a board, and then pressed with melamine-impregnated paper; the board is formed by two cold presses and three hot presses, and two heat dissipation and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention discloses a method for producing a density board. The method comprises the following steps: by adopting shavings, corn stalks, cotton stalks, wheat straw, rice straw, lithospermum, purslane, raspberry, salvia miltiorrhiza, common lantana leaf, hedge glorybind flower, clove, astragalus, honeysuckle, wild chrysanthemum, elm bark, sandalwood and camphorwood as raw materials, soaking animpregnated layer in a solution of far infrared negative ion powder before lamination to ensure that the far infrared negative ion powder permeates into wood grain of wood flour, drying in the air, mixing with a moistureproof urea-formaldehyde resin adhesive and a refractory adhesive, pressing into a board and attaching a melamine-impregnated paper to obtain, wherein during board forming, two-timecold pressing, three-time hot pressing and two-time heat dissipating are adopted; the cold pressing is carried out at room temperature and under the pressure of 2.5MPa; the hot pressing is carried out at the temperature of 125-135 DEG C; the heat dissipating is carried out through natural ventilation at room temperature for 3-5 hours; the process of attaching the melamine-impregnated paper to thesurface of the board is carried out at the temperature of 150 DEG C and under the pressure of 1.5MPa. The density board is good in waterproof and moistureproof properties and has the advantages of saving energy, reducing the release amount of formaldehyde and guaranteeing the body health of users.

Description

technical field [0001] The invention relates to a production method of a density board, in particular to a production method of a density board. Background technique [0002] Existing decoration, furniture, construction, engineering and other fields need to use a large number of boards, such as plywood, fiberboard, density board and so on. These boards all use different degrees of toxic, odorous, or flammable adhesives, which pollute the environment, endanger the health of the people, and cause huge property losses to users; at the same time, there are a large number of crop skins and shells that are not recycled in our country. , A large number of crops were abandoned, rotted, burned, and the smoke and dust filled the air, polluting the environment and endangering people's health. The production method of the density board is to mix the adhesive and the fiber particles evenly, and then press it into a board. The adhesive contains formaldehyde, which is very harmful to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/02B27N3/00B27N3/08B27D1/08B32B37/06B32B37/10C08L97/02C08L61/24C08L33/08C08L83/04C08L23/08C08K13/02C08K3/26
Inventor 刘宪华
Owner 徐州雅来基健康科技发展有限公司
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