Health care graphite nano aluminium powder electromagnetic shielding medium density fiber board and preparation method thereof

Abstract

The invention discloses a health care graphite nano aluminium powder electromagnetic shielding medium density fiber board, which is prepared from the following raw materials by weight part: 100-110 of wood fiber, a proper amount of a urea-formaldehyde resin adhesive, 22-23 parts of graphite powder, 5-5.5 of nano aluminium powder, 5-5.5 of nano tin antimony oxide, 50-60 of anhydrous ethanol, 2.3-2.6 of nano tourmaline powder, 1.5-1.9 parts of sodium borohydride, and 1.3-1.6 parts of ascorbyl palmitate. According to the invention, sodium borohydride and ascorbyl palmitate are employed to modify nano tourmaline powder, thus improving the dispersibility of nano tourmaline powder, reducing agglomeration and deterioration, promoting homogeneous dispersion of the nano tourmaline powder in wood fiber, achieving uniform emission of negative ions, and being beneficial to human health.

Description

technical field [0001] The invention relates to the technical field of medium-density fiberboards, in particular to a health-care 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 waves is...

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