Formaldehyde-free flame-retardant sunflower rod blockboard and manufacturing method thereof

Abstract

The invention discloses a formaldehyde-free flame-retardant sunflower rod blockboard which comprises two wood veneers and a homogeneous sunflower rod core board arranged between the two wood veneers;the outer surfaces of the two wood veneers are bonded with cheeks; and the homogeneous sunflower rod core board comprises the following raw materials of, by mass fraction, 20-80 parts of sunflower barstrips, 1-15 parts of adhesives, 2-20 parts of fire retardants and 20-50 parts of modifying agents. Furfuryl alcohol is adopted for modification treatment on sunflower rods, so that excellent mechanical strength and water resistence are endowed to the sunflower rod blockboard, straw waste is recycled, and waste and pollution are reduced; and by adopting the homogeneous sunflower rod core board prepared by a room-temperature cold-press moulding technology, the sunflower rod blockboard has water-proof and fire-proof functions, and the equipment cost is lowered substantially; and the entire production process is harmless and has no poisonous or pernicious gas emission, and green production is realized.

Description

technical field [0001] The invention relates to the technical field of pressed boards, in particular to a formaldehyde-free flame-retardant sunflower stem large core board and a manufacturing method thereof. Background technique [0002] With the shortage of forest resources in the world, the supply of wood is becoming increasingly tight, and the production of wood and wood-based panels has been seriously affected, while the demand is increasing year by year. The latest national statistics show that the national forest area is 158.941 million hm 2 , the forest coverage rate is about 17%, and the forest stock volume is 11.27 billion m 3 , ranking 5th and 7th in the world respectively, but the per capita share is only 1 / 5 and 1 / 8 of the world average. Per capita annual wood consumption 0.22m 3 , which is equivalent to 0.65m per capita annual wood consumption in the world 3 34.8%. With the development of the economy and the improvement of people's living standards, people ...

AI Technical Summary

Problems solved by technology

At present, it is mainly used as fuel and feed, or directly incinerated in the field, which not only causes waste of resources, but also seriously pollutes the local atmospheric environment with smoke and dust, and affects the use of some airports and highways