Fully-carbonized formaldehyde-free multilayer solid wood composite floor base plate and preparation method thereof

A technology of solid wood composite flooring and carbonized wood, which is applied in the field of fully carbonized formaldehyde-free multi-layer solid wood composite floor boards and its preparation, can solve the problems of increased formaldehyde release, impact on physical and mental health, indoor environmental pollution, etc., and achieve increased hardness and gluing Strength, reduce moisture absorption and residual internal stress, and expand the effect of application range

Inactive Publication Date: 2017-08-18
张宏伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially for geothermal heating, the amount of formaldehyde released will increase by 3-5 times, causing serious pollution to the indoor environment and affecting people's physical and mental health

Method used

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  • Fully-carbonized formaldehyde-free multilayer solid wood composite floor base plate and preparation method thereof
  • Fully-carbonized formaldehyde-free multilayer solid wood composite floor base plate and preparation method thereof
  • Fully-carbonized formaldehyde-free multilayer solid wood composite floor base plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Prepare fully carbonized formaldehyde-free multi-layer solid wood composite board floor board, the steps are as follows:

[0043] (1) Select a poplar veneer with a thickness of 1.8mm and a length×width of 1.27×1.27m, and use a double-sided flat steel plate of 1.32×1.32m to clamp and fix multiple pieces of veneer to be carbonized from the top and bottom to form a whole flat plate , the total thickness of multiple veneers to be carbonized is 27mm after being clamped and fixed; multiple overall flat plates are separated by layers of 20×20mm aluminum ventilation strips and stacked neatly in the carbonization furnace; within 4 hours After the temperature in the furnace was raised to 95°C to preheat the carbonization furnace for 3 hours, the temperature was raised from 95°C to 125°C at a rate of 10°C / h again, and kept for 3 hours, so that the water in the water tank in the furnace continued to evaporate. Ensure that the air in the furnace is removed, so that the furnace is fi...

Embodiment 2

[0051] Prepare fully carbonized formaldehyde-free multi-layer solid wood composite board floor board, the steps are as follows:

[0052] (1) Select a poplar veneer with a thickness of 1.0mm and a length × width of 1.64 × 1.27m, and use a 1.69 × 1.32m double-sided flat steel plate to clamp and fix multiple pieces of veneer to be carbonized from the top and bottom to form a whole flat plate. The total thickness of multiple pieces of veneer to be carbonized is 25mm after being clamped and fixed; the multiple overall flat plates are separated by layers of 20×20mm aluminum ventilation strips and neatly stacked in the carbonization furnace; the furnace is placed in the carbonization furnace in 4 hours After the internal temperature is raised to 90°C to preheat the carbonization furnace for 2 hours, the temperature is raised from 90°C to 120°C at a heating rate of 12°C / h, and kept for 2 hours, so that the water in the water tank in the furnace continues to evaporate to ensure Remove ...

Embodiment 3

[0060] Prepare fully carbonized formaldehyde-free multi-layer solid wood composite board floor board, the steps are as follows:

[0061] (1) Select a poplar veneer with a thickness of 5.0mm and a length×width of 1.84×1.27m, and use a 1.9×1.32m double-sided plate steel plate to clamp and fix multiple pieces of veneer to be carbonized from the top and bottom to form a whole flat plate. The total thickness of multiple pieces of veneer to be carbonized is 30mm after being clamped and fixed; the multiple overall flat plates are separated by layers of 20×20mm aluminum ventilation strips and neatly stacked in the carbonization furnace; the furnace is placed in the carbonization furnace in 5 hours After preheating the carbonization furnace with an internal temperature of 100°C for 4 hours, raise the temperature from 100°C to 130°C at a rate of 5°C / h again, and keep it warm for 4 hours, so that the water in the water tank in the furnace continues to evaporate to ensure that The air in ...

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Abstract

The invention discloses a fully-carbonized formaldehyde-free multilayer solid wood composite floor base plate and a preparation method thereof. The method comprises the steps that fully-carbonized wood veneer is stacked through formaldehyde-free glue, and the fully-carbonized formaldehyde-free multilayer solid wood composite floor base plate is obtained through hot-pressing gluing or cold-pressing gluing. The fully-carbonized formaldehyde-free multilayer solid wood composite floor base plate is good in stability, not prone to get deformed, resistant to decay, high in gluing strength and environment-friendly, the service life of the multilayer solid wood composite floor is prolonged, the economical efficiency of use by a customer is improved, the fully-carbonized formaldehyde-free multilayer solid wood composite floor base plate is completely suitable for being paved for geothermal heating, and the application range of the multilayer solid wood composite floor is expanded.

Description

technical field [0001] The invention relates to the field of solid wood composite floor substrates, in particular to a completely carbonized formaldehyde-free multi-layer solid wood composite floor substrate and a preparation method thereof. Background technique [0002] For a long time, the multi-layer solid wood composite floor board has been produced in the traditional way, that is, the veneer of the specification that has been rotary cut and urea-formaldehyde resin glue or phenolic resin glue is coated and stacked into more than 3 layers, and then glued together by a hot press machine. . [0003] The veneer used in this traditional substrate has defects such as large dry shrinkage and wet expansion rate, unstable size, easy deformation, easy insects, easy decay, low bonding strength, and poor high temperature deformation resistance, which affect the usability. [0004] The urea-formaldehyde resin or phenolic resin glue used in this traditional substrate contains free fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/06B27D5/00B27K5/00B27M3/04
CPCB27K5/0085B27D1/06B27D5/006B27M3/04
Inventor 张宏伟
Owner 张宏伟
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