Styrofoam - characteristics and application in construction

modern, technological, and has a set of different functions extruded polystyrene rightly earned the title of unique material.In construction, sanitary ware, decorating the road works and has many areas with the advent of extruded polystyrene has come a new era.We will understand what this material is, and what are its features.

extruded polystyrene

What is extruded polystyrene.EPG Unlike conventional polystyrene (Styrofoam)

material appeared more than six decades ago.Extruded polystyrene foam (also called extruded polystyrene foam) - a new word in the production of universal building and insulating materials.This plastic, characterized by a uniform structure, consisting of small (approximately 0.1-0.2 mm), closed cells.To receive the EPG sheet at high pressure and temperature produce mixing polystyrene beads, while introducing the blowing agent.They can be a mixture of light of CFCs and carbon dioxide.The mixture was then extruded from the extruder.The result of work - clear or colored sheets.After drying, the plates are ready for use.Extruded polystyrene - a plastic sheet, operating under the influence of ultraviolet exposure of a permanent nature.Due to the method used in the production, uniformity of composition and structure of the resulting material (closed cell structure) Sheets acquire high thermal insulation and strength characteristics.

polystyrene granules

Extruded polystyrene is related to the chemical composition of the foam, because they have a single "ancestor" - polystyrene.But in functionality with extruded polystyrene foam does not compare.It is an order of magnitude ahead of his fellow polymer.The reason lies in the fundamental differences between the production technology of these materials.The foam passes through the extruder and EPG - passes.Extrusion of the polymer gives a completely different vector conversion, and hence other properties and qualities.First, the pellets are melted to form a homogeneous viscous mass, converting raw materials from a solid to a viscous fluid state.All further changes are a single liquid-phase material having a non-breaking intermolecular bonds.The microstructure of the EPG, which is a common chemical with cells filled with gas, due to the absence of pairs long and does not absorb moisture from the outside, in contrast to the porous foam.

Properties EPG

Surprisingly, this material exhibits a unique combination of qualities which previously people could only dream of.

• practically no water absorption: even when fully submerged in the water slabs, it is only the first 10 days.Since the substance sealed cell, the water in any of its states can not get inside, filling the open side only "cell."
• Low EPP thermal conductivity (a lot less than that of other insulating materials.
• Most fragility and smaller plasticity compared with foamed polystyrene.
• ability of a material to transmit light.
• High rates of resistance to compression.
• Frost, is not subject to. rotting
• Resistance to chemicals: water, acids, oils, caustic alkalis, salt solutions, bleach, alcohol and dyes based on it, fluorinated hydrocarbons, cement, ammonia, CO2, propane, acetylene, butane, paraffin
• .. Safety for human

scheme used in the construction of extruded polystyrene

what is the extruded polystyrene

applications extruded polystyrene directly dependent on its properties specifications slabs of extruded polystyrene allows their use:.

1. as a building material and waterproof at the same time.The designs of basements, foundations, roofs and floors;
2. as thermal insulation elements;
3. for the construction of building envelopes (in the street, maybe an EPG is not afraid to temperature changes);
4. as a universal heater.In the construction and erection of the trunk road and the EPG provides a coating resistant to deformation, prevents soil freezing, the formation of "ice" lenses.
5. as a "window": conventional windows, in sanitary units (showers, bathrooms), in agrootrasli (greenhouses, conservatories, light diffusers), trade (stand, price list, showcase, etc.);

EPP tiles were used in the civil and industrial, private construction, the refrigeration industry, in the construction of highways and all engineering structures (heating pipes, water pipes, oil pipelines).

Plates EPG

advantages of extrusion polystyrene

• ability to use the EPG in the Russian climate, due to frost or rotting.
• ability to store extruded polystyrene on the street, because it is not afraid to temperature changes.
• durable material: it can last up to 50 years (on the street).
• Easy mounting plates.
• Reasonable price.Buy EPG will almost all Russians.
• unique combination of material properties.
• The ability to manage the use of this plastic without additional hydro and thermal insulation, additional security structures.
• ecological purity of the material.
• EPG thin plates (about 20mm), compared with 30mm thick foam, mineral wool or 4cm thick.

Laying EPG

Features of use and choice of material.

• long-term use of extruded polystyrene is guaranteed in a temperature range from -50 * C to + 75 * C.It is in this gap temperature physical and thermal properties EPG unchanged.
• extruded polystyrene sheets allows you to mount directly in the construction of the object, or put an extra layer of insulation in the house even during finishing.
• Store material recommended in the open air, in the "native" package, not in direct sunlight.
• Before applying the adhesive, it is necessary to understand whether it will harm plastic.The rules for the use of EPG is important because when an incorrect adhesive plate may shrink or soften.Not suitable for the installation of extruded polystyrene foam:

1. paint thinners;
2. coal tar (and adhesives based on its derivatives);
3. acetone;
4. oil, toluene;
5. acetate;
6. agent with a water base, used to protect the wood and having a part of the solvents.

process pmontazha EPG

In the United States, where he first received the EPG, the use of foam is already prohibited.The global trend is the gradual replacement of ineffective materials extruded polystyrene developing in Russia.

Video - ekstrudionny polystyrene