The new favorite of building materials - artificial stone

Artificial stone is made of unsaturated polyester resin as binder, combined with natural marble or calcite, dolomite, silica sand, glass powder and other inorganic powders, as well as appropriate amount of flame retardant, color, etc. , vibration compression, extrusion and other methods of molding and curing. Compared with natural stone, artificial stone has bright color, high smoothness, uniform color, good resistance to pressure and wear, good toughness, compact structure, strong and durable, low specific gravity, no water absorption, erosion and weathering, small color difference, no fading, and radioactivity. Low advantage. With the advantages of comprehensive utilization of resources, it has an inestimable role in environmental protection and energy conservation, and is also a veritable green building product for building materials. It has become the preferred finishing material for modern architecture.

Artificial stone classified by material

1. Resin type artificial stone

Resin type artificial stone is made of unsaturated polyester resin as cementing agent, and is blended with natural Dali crushed stone, quartz sand, calcite, stone powder or other inorganic fillers in a certain proportion, and then added with catalyst, curing agent, pigment and other admixtures. It is processed by mixing, solidification, demoulding and drying, and surface polishing. The product using unsaturated polyester has good gloss, rich color, strong processability and good decorative effect; the resin has low viscosity, is easy to form, and can be cured at normal temperature. The molding methods include vibration molding, compression molding, and extrusion molding. The artificial stone used in the interior decoration project is mainly resin type.

2, composite artificial stone

The binder used in the composite artificial stone has both an inorganic material and an organic polymer material. The production process is: firstly, cement, stone powder, etc. are used to make a cement mortar body, and then the body is immersed in an organic monomer to be polymerized under certain conditions. For the sheet, the bottom layer is made of a stable and inexpensive inorganic material, and the top layer is made of polyester and marble powder. Inorganic cementing materials can be used for quick-hardening cement, self-cement, ordinary Portland cement, aluminate cement, fly ash cement, slag cement and plaster of Paris. The organic monomer may be styrene, methyl methacrylate, vinyl acetate, acrylonitrile, butadiene or the like, and these monomers may be used singly or in combination. The composite artificial stone product has a lower cost, but it is susceptible to spalling or cracking after being affected by the temperature difference.

3. Cement type artificial stone

Cement-type artificial stone is an artificial stone made of various cements as cementing materials, sand and natural crushed stone particles as coarse and fine aggregates, which are prepared, stirred, pressurized, steamed, polished and polished. In the process of preparation, mixed color materials can be made into colored cement stone. The production of cement-type stone is convenient and inexpensive, but its decoration is poor. Terrazzo and all kinds of flower-step bricks belong to this category.

4. Sintered artificial stone

The production method of the sintered artificial stone is similar to the ceramic process. The powder of feldspar, quartz, diabase, calcite and hematite powder, and a certain amount of aged soil are mixed together, and the general ratio is 60% of stone powder. 40% of the clay is prepared by a mixing method, formed by a semi-dry pressing method, and then fired at a high temperature of about 1000 ° C in a kiln. The sintered artificial stone has good decorative property and stable performance, but needs to be calcined at a high temperature, so that the energy consumption is large and the cost is high. Since the unsaturated polyester resin has a small viscosity and is easy to form; the gloss is good; the color is light, and it is easy to be formulated into various bright colors and patterns; the curing is fast, and the operation can be performed at normal temperature, so that among the above stones, the most used ones are currently used. Widely, the resin type artificial stone produced by using unsaturated polyester resin as a cementing agent has stable physical and chemical properties and wide application range, and is also called polyester synthetic stone.

Performance advantages of artificial stone

High performance - high performance is combined with high strength, high hardness and good wear resistance, thin thickness, light weight, wide application and good processing performance.

A variety of colors - artificial composite stone can be produced in a variety of colors due to the different degrees of stone crushing during processing, and with different colors. There are many colors to choose from in each collection.

Wide range of uses - Artificial stone has been researched, developed and innovated for decades since its birth, enabling artificial stone to develop a wide range of materials for commercial, residential and even military applications.

Environmental protection - an environmentally-friendly and waste-to-waste industry that recycles resources. The development of the artificial stone industry itself does not directly consume the natural resources and does not destroy the natural environment. The industry utilizes a large number of waste rock resources that are difficult to effectively process when natural stone is opened. The production method itself is environmentally friendly.

The development advantage of artificial stone

Artificial stone Compared with stone and ceramic materials with a long history, the artificial stone that was born in the 1960s is a newcomer in architectural decoration materials. It was born in the United States in 1965. Since the DuPont Company developed a polymer of methyl methacrylate in 1965, combined with natural ores and pigments, this artificial composite stone has been playing a major role in the decoration field.

In the next few years, the global artificial stone market will maintain a good growth momentum, and the application of commercial space will be the main growth point. It is estimated that the total sales volume of artificial stone enterprises in China will exceed RMB 30 billion in 2016. According to the statistics of the Zhiyan Data Research Center, from the production process, mold production will be the main way of artificial stone production in the future. Molding production adopts one-time forming process, the table top can directly press out the front and rear water retaining edges, the material utilization rate is up to 99%, and no subsequent sanding, water grinding and other surface processing steps are required, and no exhaust gas, water and dust are generated. In the product market, it will break through the traditional application fields (currently used mainly for kitchen cabinets, handicrafts (furniture fabrics, ceilings, etc.) can completely replace natural stone, high-grade ceramics, wood, metal decorative materials.

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