Abstract: The invention relates to an anticorrosive nanocomposite coating material that comprises polyurea, organophilic clay and suitable additives, and is useful for preparing a polyurea/clay nanocomposites; whereby said nanocomposite coating material is coated on a substrate to greatly decrease the corrosion rate of the substrate; wherein said polyurea is combined from an amino terminated compounds and a isocyanate compound. The invention also provides a process for preparing said nanocomposite coating material, said process comprising: mixing homogeneously said amino terminated compound and an organophilic clay, followed by mixing homogeneously with isocyanate compound and suitable additives at a proper ratio, wherein, after a polymerization reaction, said organophilic clay can achieve a nano-scale dispersion extent, thereby obtaining said anticorrosive nanocomposite coating material.

Abstract: A process for producing environmental protection wall plate, includes formulating raw materials including vegetable fiber powder, magnesium oxide powder, talc powder and rigid sour calcium powder in a proper ratio; stirring said raw materials with a stirrer; after stirring for a period of time, adding a solidification agent in said mixture with stirring to form a mix; pouring said mix in a plate mould; vibrating said plate mould with a vibrator to make the mix more compact; and finally, pressing the wall plate with the vibrator, and placing the wall plate for a period of time to gel and cure the wall plate; an environmental protection wall plate can be thus obtained through the above-described steps.

Abstract: The invention relates to an anticorrosive nanocomposite coating material that comprises polyurea, organophilic clay and suitable additives, and is useful for preparing a polyurea/clay nanocomposites; whereby said nanocomposite coating material is coated on a substrate to greatly decrease the corrosion rate of the substrate; wherein said polyurea is combined from an amino terminated compounds and a isocyanate compound. The invention also provides a process for preparing said nanocomposite coating material, said process comprising: mixing homogeneously said amino terminated compound and an organophilic clay, followed by mixing homogeneously with isocyanate compound and suitable additives at a proper ratio, wherein, after a polymerization reaction, said organophilic clay can achieve a nano-scale dispersion extent, thereby obtaining said anticorrosive nanocomposite coating material.