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Method for preparing transparent heat-insulating building material based on waste wood

A technology for building materials and wood, which is applied in the field of preparing transparent heat-insulating building materials based on waste wood, can solve the problems of limited shielding functional effect and complicated preparation steps, and achieves the effects of improved performance, simple operation, and enhanced ultraviolet and infrared shielding ability.

Pending Publication Date: 2020-12-04
ZHEJIANG PENGYUAN NEW MATERIAL TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the wood is modified by the above method, its shielding effect on ultraviolet and infrared is limited, and the preparation steps are relatively complicated.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for preparing a transparent heat-insulating building material based on waste wood, the method comprising the following steps:

[0038] S1. Wood pretreatment:

[0039] S1.1. Ventilate and dry the waste wood at room temperature until the moisture content is 5%;

[0040] S1.2. Put water into the reaction kettle, heat the water to 75°C and keep it warm for 10 minutes, then add high-concentration hydrogen peroxide, and then prepare a 9wt% hydrogen peroxide solution, and immerse the dried waste wood in the configured In hydrogen peroxide solution, heat to 90°C and stir; wherein the volume ratio of waste wood to 9wt% hydrogen peroxide solution is 1:2.7;

[0041] S1.3. Then add the complexing agent solution to the hydrogen peroxide solution in step S1.2, heat, then add the buffer solution, stir and react for 1.0h, take out the reacted wood, clean it and dry it until the moisture content is 5%, that is, pre-treated wood;

[0042] S2. Wood acetylation treatment:

[0...

Embodiment 2

[0058] A method for preparing a transparent heat-insulating building material based on waste wood, the method comprising the following steps:

[0059] S1. Wood pretreatment:

[0060] S1.1. Ventilate and dry the waste wood at room temperature until the moisture content is 3%;

[0061] S1.2. Put water into the reaction kettle, heat the water to 65°C and keep it warm for 10 minutes, then add high-concentration hydrogen peroxide, and then prepare a 9wt% hydrogen peroxide solution, and immerse the dried waste wood in the configured In hydrogen peroxide solution, heat to 85°C and stir; wherein the volume ratio of waste wood to 9wt% hydrogen peroxide solution is 1:2.5;

[0062] S1.3. Then add complexing agent solution to the hydrogen peroxide solution in step S1.2, heat, then add buffer solution, stir and react for 0.8h, take out the reacted wood, clean and dry until the moisture content is 3%, that is, pre-treated wood;

[0063] S2. Wood acetylation treatment:

[0064] S2.1. Loa...

Embodiment 3

[0079] A method for preparing a transparent heat-insulating building material based on waste wood, the method comprising the following steps:.

[0080] S1. Wood pretreatment:

[0081] S1.1. Ventilate and dry the waste wood at room temperature until the moisture content is 7%;

[0082] S1.2. Put water into the reaction kettle, heat the water to 80°C and keep it warm for 10 minutes, then add high-concentration hydrogen peroxide, and then prepare a 9wt% hydrogen peroxide solution, and immerse the dried waste wood in the prepared In hydrogen peroxide solution, heat to 95°C and stir; wherein the volume ratio of waste wood to 9wt% hydrogen peroxide solution is 1:3;

[0083] S1.3. Then add complexing agent solution to the hydrogen peroxide solution in step S1.2, heat, then add buffer solution, stir and react for 1.2h, take out the reacted wood, clean and dry until the moisture content is 7%, that is, pre-treated wood;

[0084] S2. Wood acetylation treatment:

[0085] S2.1. Load t...

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PUM

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Abstract

The invention belongs to the technical field of building material processing, and particularly relates to a method for preparing a transparent heat-insulating building material based on waste wood, which is characterized by comprising the following steps: S1, wood pretreatment, S2, wood acetylation treatment, S3, resin impregnation, and S4, hot press molding to obtain compact wood, namely the transparent heat-insulating building material. The method is simple and easy to implement, and the prepared compact wood board has good heat insulation performance and good application prospects.

Description

【Technical field】 [0001] The invention belongs to the technical field of building material processing, and in particular relates to a method for preparing transparent heat-insulating building materials based on waste wood. 【Background technique】 [0002] With the rapid development of the economy and the continuous improvement of social living standards, the demand for wood in various industries is also increasing. Many products need to be made of wood materials, which makes too many trees felled and the forest area continues to grow. shrinking, and the environment is seriously deteriorating. With the passage of time, many wood products are updated and iterated, which will generate a large amount of waste wood, which will be discarded, burned, or left idle, making these waste wood lose the space for reuse, causing serious waste of resources. [0003] With the improvement of technology, people began to re-use these waste wood. Generally speaking, the utilization of waste woo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/02B27K3/10B27K5/00B27K5/02B27M1/02
CPCB27K3/0214B27K3/10B27K5/0075B27K5/0085B27K5/02B27M1/02B27K3/0278B27K3/15B27K3/346B27K3/28B27K3/52B27K5/001B27K5/007B82Y30/00
Inventor 林伟强高勇朱杭丽郑赋军李守元
Owner ZHEJIANG PENGYUAN NEW MATERIAL TECH GRP CO LTD