The invention discloses stone-like paint taking
lithium magnesium silicate and
guar gum as main bodies and introducing a
graphene family lamellar material as well as a preparation method and application of the stone-like paint, and belongs to the technical field of building coatings. The
graphene family lamellar material exists at a low
doping amount of 0.02-0.15% (based on a whole formula,
solid content), preferably, the
graphene family lamellar material is pre-compounded with
magnesium lithium silicate according to a
mass ratio of 10: 1-50: 1 to form a Lp-G (O)
hybrid, and an S3 pre-dispersion dropwise adding step is newly added in the process of S1-S6, and a window with the pH value of 8.0-9.0 and the construction
viscosity of 90-110 KU is matched, so that lamellar
layers are subjected to in-
plane orientation, and a'labyrinth path 'barrier is formed; according to the formula,
styrene-acrylic
emulsion is continuously adopted to form a film, and stone-like textures are constructed by graded
quartz sand (40-80 meshes: 80-120 meshes: 120-180 meshes = 2: 3: 5). Compared with a contrast formula which does not contain a layer material, the
water resistance / alkali resistance,
artificial aging resistance,
adhesive force and appearance retention are remarkably improved, meanwhile, construction
rheology and stone-like appearance are kept, and the stone-like
coating is suitable for interior and exterior wall decoration.