Silicon-magnesium composite clay adhesive filling material and application thereof

Abstract

The invention discloses a silicon-magnesium composite clay adhesive filling material and an application thereof. The filling material comprises components of, by mass: 5% to 35% of silicate mineral, 35% to 50% of magnesium silicate mineral, 2% to 25% of wood chip powder, and 15 to 40% of vegetable protein powder. The total amount of the components takes 100% by mass. According to the invention, natural mineral powders with abundant reserves, wide sources, and cheap prices are adopted as raw materials; wastes such as serrago produced during a wood processing process are comprehensively utilized, and a small amount of vegetable protein powder is also adopted as an auxiliary material. With simple grinding and cladding, the materials can be prepared into a mineral composite filling material used for substantially improving the initial viscosity of an urea formaldehyde resin adhesive, improving cold compression intensity and cementation intensity of a plywood, and reducing mineral composite filling materials used during a cold compression period. Therefore, the filling material can be used for substituting flour, such that foodstuff is saved, and production cost is reduced. With the processing technology, continuous industrial production can be easily realized, and three-wastes are not discharged.

Description

technical field [0001] The technical solution of the present invention relates to the preparation technology and application field of using clay minerals, sawdust and vegetable protein powder to process composite powders that can meet the filling performance requirements of adhesives, specifically clay mineral composite powders used as urea-formaldehyde resin adhesives Filler for adhesives, used in the production of plywood, man-made fiberboard, density board. Background technique [0002] With the rapid development of my country's economic construction and the rapid improvement of people's living standards, people's demand for wood has risen sharply. In particular, the implementation of the natural forest cutting limit and the sharp rise in international timber prices have exacerbated the tension in my country's timber supply, forcing people to make more use of tree scraps and low-quality fast-growing forests, and even use a large amount of crop straw to make various plywoo...

AI Technical Summary

Problems solved by technology

Jiang Yuxing, Du Guanben, etc. respectively used attapulgite to fill urea-formaldehyde resin glue to prepare plywood. The research shows that when the attapulgite filling ratio is 15%, the glue amount is 230-300g / m 2 (double-sided), the bonding strength of the board is significantly higher than that of the board pressed by pure rubber and flour, and the water resistance is improved, and the production cost is reduced. However, the above studies are difficult to effectively improve the bonding strength of the plywood during initial cold pressing.