Formaldehyde-dependence-free mineral adhesive density board, preparation method and special adhesive

The invention discloses a formaldehyde-dependence-free mineral adhesive density board, a preparation method and a special adhesive, and relates to density boards. The invention relates to a formaldehyde-dependence-free adhesive for a mineral adhesive density board, which is characterized by comprising the following components: active magnesium oxide, a magnesium sulfate compound, fatty acid polyoxyethylene ether sodium sulfate, sodium hexametaphosphate, ferrous sulfate, slag powder, OP-10 and NNO. The adhesive disclosed by the invention does not contain formaldehyde, so that the density board manufactured by adopting the adhesive disclosed by the invention is free of formaldehyde volatilization during use, and accords with the concept of environmental protection. 免甲醛依赖的矿物质胶密度板及制备方法和专用胶粘剂涉及密度板。一种免除甲醛依赖的矿物质胶密度板用胶粘剂，其特征在于，包括如下组分：活性氧化镁、硫酸镁化合物、脂肪酸聚氧乙烯醚硫酸钠、六偏磷酸钠、硫酸亚铁、矿渣粉、OP-10、NNO。本发明的胶粘剂不含甲醛，因此，采用本发明的胶粘剂制作的密度板，在使用时无甲醛挥发，符合绿色环保的概念。