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Composite wood processing technique

A processing technology and wood technology, applied in textiles, papermaking, papermaking, fiberboard, etc., can solve the problems of small waste recycling range, short long-term usability of wood, and immature technology, so as to improve plasticity and curb growth , excellent effect of bending resistance

Inactive Publication Date: 2015-09-30
贵州海峰木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] People's application of wood originated very early. With the improvement of the quality of life, the improvement of wood has also caused qualitative changes from quantitative changes. Among them, wood processing has the advantages of low energy consumption, less pollution, and resource regeneration, and today's development , Wood has been developed from primary processed products to processed products, such as wood-based panels, plywood, composite panels and other products, but they still cannot meet the needs of modernization. Among the existing wood products, they are easy to degrade, mildew, The shortcomings of perishability need to be continuously improved by researchers; in the existing wood processing technology, a large amount of scraps are produced, and the reuse range of scraps is small, and the requirements are high. For example, the technology of reproducing wood from scraps is not mature. The amount of reagents is not appropriate, so that the long-term use of wood regenerated from scraps is short, and the performance is not good, for example, anti-corrosion and anti-mildew, compressive and flexural strength, etc.
[0004] Moreover, with the shortage of resources, the processing technology of directly using logs as materials to manufacture high-quality wood has caused great pressure on the natural ecology. The deteriorating spontaneous combustion resources of human beings can no longer afford the increasing material demand. Therefore, wood researchers urgently need to study related Transformational Research

Method used

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  • Composite wood processing technique

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The invention relates to a processing technology of composite wood, the material selection of which is 12 parts of straw, 9 parts of sugarcane and 13 parts of sawdust.

[0031] The specific steps are:

[0032] (1) Put bagasse, straw, and sawdust in a steaming ball, cook with alkali, heat up for 68 minutes, add hydroxypropyl methylcellulose, and heat for 30 minutes to obtain a slurry;

[0033] (2) transfer the slurry to the mixer, add melamine for intermittent stirring, perform drying and molding once, and obtain the first composite wood product;

[0034] (3) Soaking the primary composite wood product, secondary drying, and surface coating to obtain the composite wood product.

[0035] The temperature raising treatment in the step (1) is to cook at a rate of 5°C every 10 minutes, and control the final cooking temperature to 76°C, and maintain the holding temperature at 70°C.

[0036] Adding alkali in the described step (1) is to add sodium hydroxide, sodium sulfide suc...

Embodiment 2

[0042] The invention relates to a processing technology of composite wood, the materials of which include 18 parts of straw, 11 parts of sugar cane and 33 parts of sawdust.

[0043] The specific steps are:

[0044] (1) Put bagasse, straw, and sawdust in a steaming ball, cook with alkali, heat up for 74 minutes, add hydroxypropyl methylcellulose, and heat for 30 minutes to obtain a slurry;

[0045] (2) transfer the slurry to the mixer, add melamine for intermittent stirring, perform drying and molding once, and obtain the first composite wood product;

[0046] (3) Soaking the primary composite wood product, secondary drying, and surface coating to obtain the composite wood product.

[0047] The temperature raising treatment in the step (1) is to cook at a rate of 5°C every 10 minutes, and control the final cooking temperature to 63°C, and maintain the holding temperature at 56°C.

[0048] Adding alkali in the described step (1) is that sodium hydroxide and sodium sulfide are ...

Embodiment 3

[0054] The invention relates to a processing technology of composite wood, the selected materials are 27 parts of straw, 26 parts of sugarcane and 25 parts of sawdust.

[0055] The specific steps are:

[0056] (1) Put bagasse, straw, and sawdust in a steaming ball, cook with alkali, heat up for 68 minutes, add hydroxypropyl methylcellulose, and heat for 30 minutes to obtain a slurry;

[0057] (2) transfer the slurry to the mixer, add melamine for intermittent stirring, perform drying and molding once, and obtain the first composite wood product;

[0058] (3) Soaking the primary composite wood product, secondary drying, and surface coating to obtain the composite wood product.

[0059]The temperature raising treatment in the step (1) is to cook at a rate of 5°C every 10 minutes, and control the final cooking temperature to 58°C, and maintain the holding temperature at 58°C.

[0060] Adding alkali in the described step (1) is that sodium hydroxide and sodium sulfide are added ...

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Abstract

The invention relates to the field of building materials, in particular to a composite wood processing technique. Cane trash, straw and sawdust are mixed and stewed with alkali, and temperature rise processing is carried out for 60-75 min; hydroxypropyl methyl cellulose is added, and heat preservation processing is carried out for 30 minutes; melamine is added, intermittent stirring is carried out, and steam drying and forming are carried out to obtain a composite wood primary finished product; the composite wood primary finished product is subjected to soaking, cold air drying and surface finishing to obtain a composite wood finished product. The processing technique is simple and pollution free, wood can be manufactured by utilizing fiber type and waste wood type materials, and the composite wood manufactured through the processing technique has high corrosion resistance, pressure resistance and bending resistance.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a composite wood processing technology. Background technique [0002] Wood is light in weight, beautiful in color, good in plasticity, and insulating. It is widely used in many fields such as construction and home furnishing. It is also an important raw material in current life and production. [0003] People's application of wood originated very early. With the improvement of the quality of life, the improvement of wood has also caused qualitative changes from quantitative changes. Among them, wood processing has the advantages of low energy consumption, less pollution, and resource regeneration, and today's development , Wood has been developed from primary processed products to processed products, such as wood-based panels, plywood, composite panels and other products, but they still cannot meet the needs of modernization. Among the existing wood products, they are easy to de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21J1/08
Inventor 余海
Owner 贵州海峰木业有限公司
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