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A kind of preparation method of environment-friendly fiberboard and the processing technology of furniture

A fiberboard, environmentally friendly technology, applied in the field of furniture manufacturing, can solve the problems of excessive formaldehyde content in fiberboard and human health damage, and achieve the effect of adsorbing and degrading formaldehyde in indoor air

Active Publication Date: 2021-02-05
上海朴美家具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of making the above-mentioned medium density fiberboard for wardrobe door panels, it is necessary to use an adhesive to bond the fibers. The adhesive is synthesized from formaldehyde as a base material. Unreacted formaldehyde remains in the adhesive, that is, free formaldehyde. When this adhesive is used in the preparation process of fiberboard, the formaldehyde content in the fiberboard will greatly exceed the standard, causing harm to human health

Method used

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  • A kind of preparation method of environment-friendly fiberboard and the processing technology of furniture

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Experimental program
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Embodiment 1

[0039] Embodiment 1: a kind of preparation method of environmental protection fiberboard, comprises the following steps:

[0040] (a) Preparation of modified adhesive: Put formaldehyde into the reaction kettle and stir, add melamine in three batches, and the three batches of melamine are equal in weight, keep the pH value at 8, and the temperature at 65°C, so that the melamine is completely After the dissolution reaction is completed, a slurry is obtained;

[0041] Add anhydrous methanol into the reaction kettle, adjust the pH to acidic with concentrated hydrochloric acid, and keep it warm at 55°C for 1.5 hours. After the slurry is completely reacted and becomes a clear solution, the reaction is completed, and then the modified adhesive is obtained by distillation under reduced pressure;

[0042] (b) crushing bamboo fiber and modified sepiolite and mixing them evenly, adding the mixture to water to make fiber slurry;

[0043] (c) Add the modified adhesive and starch to the fi...

Embodiment 2

[0054] Embodiment 2: a kind of preparation method of environment-friendly fiberboard, the difference with embodiment 1 is:

[0055] (a) Preparation of modified adhesive: Put formaldehyde into the reaction kettle and stir, add melamine in three batches, and the three batches of melamine are equal in weight, keep the pH value at 8.5, and the temperature at 69°C, so that the melamine is completely After the dissolution reaction is completed, a slurry is obtained;

[0056] Add anhydrous methanol into the reaction kettle, adjust the pH to acidic with concentrated hydrochloric acid, and keep it warm at 59°C for 2 hours. After the slurry is completely reacted and becomes a clear solution, the reaction is completed, and then the modified adhesive is obtained by distillation under reduced pressure;

[0057] It is all identical with embodiment 1.

Embodiment 3

[0058] Embodiment 3: a kind of preparation method of environmental protection fiberboard, the difference with embodiment 1 is:

[0059] (c) Add the modified adhesive and starch to the fiber slurry and mix evenly, wherein 180Kg of modified adhesive and 5Kg of starch are added to each cubic meter of fiber slurry, and then added to the forming mold, and heated in a hot press Down pressing, the hot-pressing temperature of the hot-pressing machine is 200°C, the hot-pressing pressure is 7MPa, and the hot-pressing time is 30min;

[0060] It is all identical with embodiment 1.

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Abstract

The invention discloses a preparation method of an environment-friendly fiberboard and a furniture processing technology, and relates to the technical field of furniture manufacturing. The technical gist is: a method for preparing an environmentally friendly fiberboard, comprising the following steps: (a) preparing a modified adhesive; (b) pulverizing and mixing bamboo fiber and modified sepiolite, and adding the mixture into water to prepare fiber slurry; (c) add the modified adhesive and starch to the fiber slurry and mix evenly, then add it to the forming mold and press it under a hot press; (d) put the formed board at 80‑ Dry at 90°C until the moisture content is 5-10.6% to obtain an environmentally friendly fiberboard. By modifying the adhesive and doping with modified sepiolite, an environmentally friendly, non-polluting and air-purifying fiberboard can be obtained.

Description

technical field [0001] The invention relates to the technical field of furniture manufacturing, more specifically, it relates to a preparation method of an environmentally friendly fiberboard and a furniture processing technology. Background technique [0002] Many consumers choose wood-based panels to make furniture. Wood-based panels are made of wood or other non-wood plants, separated into various unit materials by certain mechanical processing, and then glued with or without adhesives and other additives. ; Wood-based panels include plywood, fiberboard and particleboard. [0003] In the Chinese invention patent whose publication number is CN104875267B, a method for preparing medium density fiberboard for wardrobe door panels is disclosed, which includes the following steps: adhesive preparation, fiber preparation, fiber sizing and drying, paving, hot pressing and post-treatment; In the hot-pressing step, the process parameters are as follows: the weight ratio of fiber a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21J1/00D21J3/00D21H11/12D21H17/69D21H17/49B27M3/18C08L97/02C08L3/02C08L61/32C08K9/02C08K3/34
CPCB27M3/18C08L97/02C08L2205/16D21H11/12D21H17/49D21H17/69D21J1/00D21J3/00C08L3/02C08L61/32C08K9/02C08K3/34
Inventor 杨瑞坤李娅莉
Owner 上海朴美家具有限公司
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