Environment-friendly flame-retardant inorganic adhesive and preparation method thereof

Abstract

The invention discloses an environment-friendly flame-retardant inorganic adhesive. The inorganic adhesive comprises white glue and blue glue, wherein the white glue comprises the following raw materials in parts by weight: 20-80 parts of magnesium oxide, 10-40 parts of magnesium chloride, 5-30 parts of magnesium sulfate, 10-40 parts of nano antimony oxide, 10-40 parts of superfine silica fume, 0.5-1 part of citric acid, 0.5-1 part of sodium phosphate, 0.5-1 part of boric acid and 30-100 parts of deionized water; and the blue glue comprises the following raw materials in parts by weight: 10-40 parts of alumina sol, 10-40 parts of sodium silicate, 20-60 parts of polyvinyl alcohol and 80-200 parts of deionized water. The adhesive disclosed by the invention has excellent bonding strength, can replace the traditional organic MDI (Methylene Diphenyl Diisocyanate) adhesives, and has flame-retardant, formaldehyde release-free, water-resistant, insect-resistant, moisture-resistant and anticorrosive characteristics when applied to manufacturing straw boards.

Description

technical field [0001] The invention belongs to the technical field of inorganic environmental-friendly adhesives, and in particular relates to an environmentally-friendly flame-retardant inorganic adhesive used in the manufacture of flame-retardant straw boards and a preparation method thereof. Background technique [0002] With the development of social economy, people's life quality requirements are getting higher and higher. At present, multi-layer wooden boards, blockboards and medium density boards are often used in architectural decoration, furniture production and other industries. Among them, these three kinds of decorative boards have common disadvantages: they are not fireproof, contain a lot of harmful substances, seriously endanger the health of users, and need to consume a lot of wood. [0003] Although there are various fireproof boards on the market (such as gypsum boards, cement boards, magnesium oxide boards, calcium silicate boards, etc.), the finished pro...

AI Technical Summary

Problems solved by technology

[0002] With the development of social economy, people's life quality requirements are getting higher and higher. At present, multi-layer wooden boards, blockboards and medium density boards are often used in architectural decoration, furniture production and other industries. Among them, these three kinds of decorative panels have common disadvantages: they are not fireproof, contain a lot of harmful substances, seriously endanger the health of users, and consume a lot of wood.

To sum up, from a purely technical point of view, the core technical problem of crop straw-based panels at home and abroad is firstly the problem of gluing. Due to the application of MDI resin, the technology of modern straw-based panels has developed in stages, but Even so, compared with wood-based panels, there is still a considerable gap; especially in the collection and preparation of raw materials, production equipment, and product costs, whether it can be widely used and promoted, it is still necessary to find a way that suits China's national conditions. development path