he application of various formulations and various additives makes the performance of artificial stone more and more perfect. Binders are not limited to polymers (such as unsaturated polyester resins, epoxy compounds), inorganic adhesives (such as cement, lime and other silicates), and aggregates are also developed from marble, calcite, quartz sand to the use of industrial waste residue (such as blast furnace slag, copper slag, nickel slag, waste glass, etc.). According to the raw materials used in the production of artificial stone, it can be divided into the following four categories:

1. Resin type solid surface

Resin-type artificial stone is made of unsaturated polyester resin as a binder, mixed with natural marble gravel, quartz sand, calcite, stone powder or other inorganic fillers in a certain proportion, and then added with catalysts, curing agents, pigments and other additives. It is processed by mixing and stirring, curing and molding, demolding and drying, surface polishing and other processes. Products using unsaturated polyester have good luster, bright and rich colors, strong processability, and good decorative effects; this resin has low viscosity, is easy to shape, and can be cured at room temperature. Molding methods include vibration molding, compression molding and extrusion molding. The artificial stone used in the interior decoration project is mainly resin type.

2. modified acrylic solid surface

Among the binders used in composite artificial stone, there are both inorganic materials and organic polymer materials. The production process is: firstly use cement, stone powder, etc. to make the body of cement mortar, and then immerse the body in organic monomers to polymerize under certain conditions. For the board, the bottom layer is made of stable and cheap inorganic materials, and the surface layer is made of polyester and marble powder. Inorganic cementing materials can be used for rapid hardening cement, ordinary portland cement, aluminate cement, fly ash cement, slag cement and plaster of paris. The organic monomers can be styrene, methyl methacrylate, vinyl acetate, acrylonitrile, butadiene, etc. These monomers can be used alone or in combination. The cost of composite artificial stone products is low, but its polyester surface is prone to peeling or cracking after being affected by temperature difference.

3. cement type solid surface

Cement-type artificial stone is an artificial stone made of various cements as cementing materials, sand and natural gravel as coarse and fine aggregates, after preparation, mixing, pressure steaming, polishing and polishing. During the preparation process, coloring materials can be mixed to make colored cement stones. The production of cement-type stone materials is convenient and cheap, but its decoration is poor. Terrazzo and various flower-step bricks belong to this category.

4. Sintered solid surface

The production method of sintered artificial stone is similar to that of ceramic technology. It is to mix feldspar, quartz, diabase, calcite and other powders with hematite powder and a certain amount of kaolin. The general ratio is 60% of stone powder. The clay is 40%, and the blank is prepared by the slurry mixing method, shaped by the semi-dry pressing method, and then fired in a kiln at a high temperature of about 1000°C. Sintered artificial stone has good decoration and stable performance, but it needs to be roasted at high temperature, so it consumes a lot of energy and costs high.

Because unsaturated polyester resin has the characteristics of low viscosity, easy to shape, good gloss, light color, easy to prepare various bright colors and patterns, fast curing, and can be operated at room temperature, so among the above-mentioned stone materials, it is currently the most used. Widely used, it is a resin-type artificial stone produced with unsaturated polyester resin as a binder. It has stable physical and chemical properties and a wide range of applications. It is also called polyester synthetic stone.