Easily-processed graphite and nano-aluminum powder medium density fiberboard capable of shielding electromagnetism and preparation method thereof

Abstract

The invention discloses an easily-processed graphite and nano-aluminum powder medium density fiberboard capable of shielding electromagnetism and a preparation method thereof. The easily-processed graphite and nano-aluminum powder medium density fiberboard capable of shielding the electromagnetism comprises, by weight, 100-110 parts of wood fibers, an appropriate quantity of urea-formaldehyde resin adhesive, 22-23 parts of graphite powder, 5-5.5 parts of nano-aluminum powder, 5-5.5 parts of nano tin antimony oxide, 50-60 parts of absolute ethyl alcohol, 0.9-1.2 parts of methyl tin mercaptide, 1.9-2.1 parts of sulfuration dimolybdenum, and 1.1-1.3 parts of molybdenum trioxide. The easily-processed graphite and nano-aluminum powder medium density fiberboard is wrapped with the nano-aluminum powder, the graphite power and the nano tin antimony oxide, three conducting layers connected with one another are formed, three layers of filtration to electromagnetic waves are formed, the shielding effect is improved, light-proof ageing resistance and heat resistance are further improved, compactness of the wood fibers is improved, and corrosion resistance and bonding strength of the fiberboard are improved. By adopting the methyl tin mercaptide, heat stability of the fiberboard is improved, and the fiberboard does not crack under high temperature; processability and abrasive resistance of the fiberboard are improved through the sulfuration dimolybdenum; and the fire resistance of the fireboard is improved through the molybdenum trioxide.

Description

technical field [0001] The invention relates to the technical field of medium-density fiberboards, in particular to an easily-processable graphite nano-aluminum powder electromagnetic shielding medium-density fiberboard and a preparation method thereof. Background technique [0002] With the construction of electrical equipment such as communication antennas, high-voltage transmission lines, and TV signal towers, and the increase in household appliances, the increasingly serious electromagnetic radiation has caused varying degrees of pollution to the environment. Severe electromagnetic pollution can cause genetic variation, failure to grow or even death of plants; adverse effects on domestic animals, wild animals, etc.; on humans, it can cause central nervous system dysfunction and vegetative nervous disorders mainly caused by sympathetic fatigue and tension. , Electromagnetic radiation endangers human health and pollutes the environment, so the shielding of electromagnetic ...

AI Technical Summary

Problems solved by technology

Many electromagnetic wave shielding materials with the function of preventing electromagnetic wave shielding have been developed, but they mainly focus on plastic and metal materials. There are not many studies on wood-based electromagnetic wave shielding materials, and even less research in the field of fiberboard for furniture. The current literature research is mainly It is to add iron mesh, copper mesh or other metal powder into the fiberboard