Fiberboard with formaldehyde self-absorbing function and manufacturing method thereof

Abstract

The present invention provides a fiberboard with formaldehyde self-absorbing function and a manufacturing method thereof. The fiberboard of the invention adopts the wood fiber, aldehyde adhesive and active carbon as main raw materials. The dosage of the adhesive is 9%-12% of that of the wood fiber mass, and the dosage of the active carbon is 2%-30% of that of the wood fiber mass. The invention provides the novel fiberboard which is added with a certain amount of active carbon component with the absorbing function in the manufacturing process of the board so that the fiberboard has the function of free formaldehyde (harmful gas) self-absorbing function in the board for a long time. The releasing of the formaldehyde in the board can be reduced for reducing the formaldehyde pollution to the environment. Simultaneously the fiberboard has the functions of corrosion resistance, moisture resistance, deodorization and fungus resistance. Furthermore the fiberboard has the advantages of high absorbing efficiency, excellent absorbing effect, low cost, no toxicity, no side effect, etc.

Description

(1) Technical field [0001] The invention belongs to the technical field of functional wood-based panels and composite materials, and in particular relates to a fiberboard with the function of self-absorbing formaldehyde. (2) Background technology [0002] At present, the wood-based panels used in interior decoration mainly include fiberboard, particle board, blockboard, and plywood. place. Among them, fiberboard is a kind of wood-based panel that is closest to natural wood among all kinds of panels. Both the surface and the edge have good mechanical processing and forming processing performance, and the thickness and size specifications vary widely, which can meet various needs and are widely used in decoration; at the same time, fiberboard is widely used in indoor and outdoor decoration due to its excellent physical properties. Horizontal, office, high-end furniture, audio, interior decoration of limousines, can also be used as materials for anti-static floors, wall panel...

AI Technical Summary

Problems solved by technology

[0007] 1. The sensory deodorization method mainly uses the effect of air fresheners to eliminate the smell of formaldehyde from the sense of smell. This method cannot reduce the actual content of indoor formaldehyde;

[0008] 2. The ventilation method is also a commonly used method after the decoration is completed. It uses the circulating air to take away the formaldehyde released into the air. This method can reduce the indoor formaldehyde content to a certain extent, but the formaldehyde in the board will be lost with time. Therefore, it is difficult to fundamentally solve the problem of reducing formaldehyde content in winter in the north and in large public places with poor ventilation;

[0011] In addition to the disadvantages of the above methods, for example, the ozone oxidation method has the following disadvantages: on the one hand, ozone is a strong oxidant, which can cause reduction reactions in the human respiratory system and damage respiratory organs; Ozone reacts directly or indirectly to produce secondary pollutants, and the generated substances may increase the stimulation and health impact on the human body

The photocatalytic oxidation method can only use the ultraviolet light source contained in sunlight and fluorescent lamps. From the perspective of the utilization efficiency of sunlight, there is a high recombination rate of semiconductor carriers, low quantization efficiency, and a narrow wavelength range of semiconductor light absorption (mainly in the ultraviolet area), while the ultraviolet light energy (below 400unl) in the solar spectrum is less than 5%, so the efficiency is low

At the same time, the selectivity of the photocatalytic oxidation method is poor, and the reaction rate is slow at low concentrations.

It also cannot solve the problem of long-term and slow release of formaldehyde in the board