Method for manufacturing bamboo particleboards through modification of hickory nut epicarp

A technology for bamboo particleboard and exocarp, which is applied in the field of manufacturing bamboo particleboard, can solve the problem that bamboo particleboard has not been reported in literature, etc., and achieves the effects of promoting industrial development, excellent product performance, and improving comprehensive utilization rate of resources.

Active Publication Date: 2014-09-10
ZHEJIANG FORESTRY ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the research on the modification of hickory exocarp as a binder for the manufacture of bamboo particleboard has not been reported in the literature.

Method used

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  • Method for manufacturing bamboo particleboards through modification of hickory nut epicarp
  • Method for manufacturing bamboo particleboards through modification of hickory nut epicarp

Examples

Experimental program
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Effect test

Embodiment 1

[0029] (1) Pre-treatment of the hickory exocarp: collect the hickory exocarp, dry it to a moisture content below 3%, crush it, and screen the powder with a particle size of less than 40 mesh;

[0030] (2) Preparation of modified liquid: Mix the raw materials and content of Example 1 in Table 1 to form modified liquid; or make the content according to the amount of increase or decrease of the content shown by each raw material, such as a thousand times to a liter ( L) or kilograms (kg) is used as the content to prepare the modified liquid;

[0031] (3) Modification of the pecan exocarp powder: according to the process factors and parameters of Example 1 in Table 2, the pecan exocarp powder obtained in step (1) is modified, and the hickory exocarp powder is used The modified solution of 50% of the dry weight of the material is sprayed with a side-rolling tube. After the powder is sprayed evenly with the modified solution, it is placed in a 40°C constant temperature room fo...

Embodiment 2

[0037] The steps are the same as the method and Example 1, except that the parameters such as the amount of addition in the following steps are slightly changed: in step (2), each raw material and its content are mixed into a modified liquid according to the raw materials and content of Example 2 in Table 1; In step (3), the treatment temperature is 50°C, and the treatment time is 1.5h; in step (5), the modified hickory exocarp powder is added according to 25% of the absolute dry mass of bamboo shavings; in step (6), Add water repellent and additives according to 0.8% of the absolute dry mass of bamboo shavings.

Embodiment 3

[0039] The steps are the same as the method and Example 1, with a slight change: in step (2), each raw material and its content are mixed into a modified liquid according to the raw materials and content of Example 3 in Table 1; in the step (3), the treatment temperature is 60°C, the treatment time is 3h; in step (5), add the modified pecan exocarp powder according to the quality of 30% of the absolute dry weight of bamboo shavings; in step (6), press 0.8% of the absolute dry weight of bamboo shavings Add water repellent and additives.

[0040] All the other examples 4-9 are all mixed into modified liquid by the raw materials and contents shown in corresponding examples 4-9 in table 1 respectively and modified by the modification treatment conditions shown in corresponding examples 4-9 in table 2. sexual processing.

[0041] Among the nine examples, example 6 is preferred.

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Abstract

A method for manufacturing bamboo particleboards through modification of hickory nut epicarp includes the steps: after dried, crushed and screened, the hickory nut epicarp is added into bamboo shavings and mixed well, and an environment-friendly bamboo particleboard is made by the conventional bamboo particleboard production process. Mass lignin in the hickory nut epicarp is modified via laccase and is used as substitute for glue; during hot-pressing, the modified hickory nut epicarp engages in a series of chemical reactions with the bamboo shavings; accordingly, the glue is produced and used for manufacturing of the environment-friendly bamboo particleboards. The method has the advantages that the glue can be all or partially replaced with the modified hickory nut epicarp added, the cost is low, the process is simple, the particleboards are excellent in performance, no free formaldehyde is released, products are environment friendly, energy consumption is low, and the method has industrial production prospect.

Description

technical field [0001] The invention relates to a method for producing artificial boards, in particular to a method for modifying hickory exocarp as an adhesive for manufacturing bamboo particle boards. Background technique [0002] my country is one of the countries of origin of pecans. The national area of ​​pecans is about 86,700 hectares, with a regular annual output of 30,000 tons and an annual output value of more than 1.2 billion yuan. It has become the main source of income for farmers in production areas. Hickory nuts are harvested from the mountain with exocarp. During the production and processing process, the exocarp should be removed first, and then the hickory nuts with the outer shell should be processed, commonly known as "dry seeds". The mass ratio of hickory nut exocarp and hickory nut dry seed is about 5: 1, so the hickory nut outer peel that will produce 4-5 times more than dry seed at the place of processing hickory nut. Over the years, such rich pecan ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N1/00B27N1/02B27N3/10B27N3/14
Inventor 王进金春德
Owner ZHEJIANG FORESTRY ACAD
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