Preparation method of high-flame-retardant artificial plate

Abstract

The invention relates to a preparation method of a high-flame-retardant artificial plate. The preparation method comprises the following steps: sawdust and wood shavings are selected, impurities like silt, dust and scrap iron are removed through sieving and magnetic attraction, pulverizing is carried out, then an obtained material is steamed at 110-120 DEG C for 15-30min, and then is dried till a water ratio is lower than 5.0%, an obtained dried raw material and high-flame-retardant adhesive powder are mixed uniformly in a material mixing machine, and after blank loading, primary hot pressing and cooling are carried out, a sandwich layer is obtained; and an upper surface layer and a lower surface layer which are made of 1.0-1.2mm thick veneers are prepared, the surfaces, fitted with the sandwich layer, of the upper surface layer and the lower surface layer are coated with appropriate amounts of molten high-flame-retardant adhesive powder, then the upper surface layer and the lower surface layer are combined with the sandwich layer together, and after secondary hot pressing, cooling, edge cutting and polishing processes are carried out, the high-flame-retardant artificial plate is produced. The temperature of the primary hot pressing is 110-120 DEG C, the time is 20-50s, the pressure is 6-8MPa; and the temperature of the secondary hot pressing is 120-130 DEG C, the time is 10-15s, and the pressure is 4-6MPa. The high-flame-retardant artificial plate has the excellent flame retardant property, and can be cut freely as required in a using process, and the color of the cut edge does not affect the using effect.

Description

technical field [0001] The invention relates to a preparation method of a highly flame-resistant artificial board, which belongs to the technical field of building decoration boards. Background technique [0002] The production of particleboard of wood-based panels has low energy consumption, low cost, low requirements on the quality of wood raw materials, and good physical and mechanical properties. It is widely used in furniture, decoration, building materials and other industries. In recent years, China has become the world's third largest producer of particleboard after the United States and Germany. Particleboard is also called particle board, particle board, and bagasse board. It is a wood-based panel made of wood or other lignocellulosic materials, which is glued under heat and pressure after applying glue powder, also known as particle board. [0003] Particleboard has relatively uniform structure and good processing performance. It can be processed into large-forma...

AI Technical Summary

Problems solved by technology

But it also has its inherent disadvantages, because the edges are rough and easy to absorb moisture. In addition, due to the nature of the wood and the properties of the rubber powder used, the particleboard of the prior art is not anti-mildew and antibacterial, and it is easy to mold and breed bacteria when used in a humid environment.

In addition, due to the problem of the rubber powder used, this kind of particleboard has more or less a certain odor, which affects the quality of the indoor environment in people's lives and is not environmentally friendly.

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