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Method for preparing high-strength composite board by utilizing wood fiber powder

A technology of wood fiber powder and composite board, which is applied in the field of wood product material research and development, can solve the problems of incompatibility between high-density polyethylene and wood fiber powder, improve the comprehensive utilization rate, use value, and other mechanical properties , to achieve the effect of waste utilization

Inactive Publication Date: 2020-08-14
肥西县创玺建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the existing problems and provide a method for preparing high-strength composite boards using wood fiber powder, which realizes the high-performance composite of wood-plastic boards and solves the incompatibility between high-density polyethylene and wood fiber powder question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for preparing high-strength composite boards by using wood fiber powder, comprising the following steps:

[0020] S1: Preparation of reinforcing agent: Weigh aluminum silicate and calcium silicate powder according to the mass ratio of 1:4, put them in a mortar and grind for 15 minutes, pour the ground powder into a beaker, and add 2.8 times The molar concentration of the volume is 1.5 mol / liter hydrochloric acid aqueous solution, heat up to 40 ° C, continue to stir for 30 minutes, then add sodium hydroxide solution accounting for 15% of the system mass under stirring, continue to stir for 30 minutes, and then place in the muffle Calcined in the furnace, the calcination temperature is 770°C, the calcination time is 45 minutes, the temperature is naturally cooled to room temperature, dispersed in the ethanol solution according to the ratio of solid to liquid ratio of 1:4, and subjected to high-speed centrifugation, and the solid product is washed with deionized wa...

Embodiment 2

[0027] A method for preparing high-strength composite boards by using wood fiber powder, comprising the following steps:

[0028] S1: Preparation of reinforcing agent: Weigh aluminum silicate and calcium silicate powder according to the mass ratio of 1.5:4.5, put them in a mortar and grind for 18 minutes, pour the ground powder into a beaker, and add 2.9 times The molar concentration of the volume is 1.6 mol / liter hydrochloric acid aqueous solution, heat up to 45 ℃, continue to stir for 33 minutes, then add sodium hydroxide solution accounting for 16% of the system mass under stirring, continue to stir for 35 minutes, then place in the muffle Calcined in a furnace, the calcination temperature is 775°C, the calcination time is 50 minutes, the temperature is naturally cooled to room temperature, dispersed in the ethanol solution according to the solid-liquid ratio of 1:4.5, and subjected to high-speed centrifugation, and the solid product is washed with deionized water for 4 tim...

Embodiment 3

[0035] A method for preparing high-strength composite boards by using wood fiber powder, comprising the following steps:

[0036] S1: Preparation of reinforcing agent: Weigh aluminum silicate and calcium silicate powder according to the mass ratio of 2:5, put them in a mortar and grind for 20 minutes, pour the ground powder into a beaker, and add 3.0 times The molar concentration of the volume is 1.8 mol / liter hydrochloric acid aqueous solution, heat up to 50 ° C, continue to stir for 35 minutes, then add sodium hydroxide solution accounting for 18% of the system mass under stirring, continue to stir for 40 minutes, and then place in the muffle Calcined in the furnace, the calcination temperature is 780°C, the calcination time is 55 minutes, the temperature is naturally cooled to room temperature, dispersed in the ethanol solution according to the ratio of solid to liquid ratio of 1:5, and centrifuged at a high speed to obtain a solid product, which is washed with deionized wat...

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Abstract

The invention relates to the field of wood product material research and development industry. The invention discloses a method for preparing a high-strength composite board by utilizing wood fiber powder. The active group and the thermoplastic property of the wood fiber powder are utilized; by compounding the wood fiber powder with high-density polyethylene by adopting a physical blending method,the performance of the composite material and the production cost of the material are improved; a prepared nanoscale particle reinforcing agent is added, so that a good reinforcing and toughening effect is achieved on the composite material; the problems that existing common filling agent is prone to agglomeration, poor in dispersity and general in compatibility with high-density polyethylene, and problem that the high-density polyethylene is incompatible with the wood fiber powder cannot be solved are solved; the adverse effect on the performance of the composite board is avoided; on the contrary, the strength performance of the composite material can be improved, the tensile strength of the prepared novel composite material reaches 26-28 MPa, the elongation at break is improved by 5.0-6.0%, the novel composite material has the advantages which cannot be matched by other materials, multi-functionalization of wood is achieved, and the comprehensive utilization rate and the use value of the wood are improved.

Description

technical field [0001] The invention belongs to the technical field of research and development of wood product materials, and in particular relates to a method for preparing high-strength composite boards by using wood fiber powder. Background technique [0002] my country is a big country of timber consumption, and its annual timber development ranks among the top in the world. Wood is the lignified tissue of plants capable of secondary growth, such as trees and shrubs. After the primary growth of these plants ends, the vascular cambium in the rhizome becomes active, developing bast outward and wood inward. Wood is the general term for plant tissues that develop inwardly from the vascular cambium, including xylem and parenchyma rays. Wood plays a great supporting role in human life. [0003] my country is rich in wood resources, among which the consumption of paper, catering, furniture and other industries is huge. A large amount of by-products—wood powder will be prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L97/02C08L91/00C08L91/06C08K13/02C08K3/34C08K5/098C08K5/12C08K5/29
CPCC08K2201/011C08L23/06C08L2201/06C08L2205/035C08L2207/062C08L97/02C08L91/00C08L91/06C08K13/02C08K3/34C08K3/346C08K5/098C08K5/12C08K5/29
Inventor 郭平
Owner 肥西县创玺建材科技有限公司
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