Polyethylene Rigid Foam Sheets According to different circumstances

Foam board with seams stop function

 The use of polyethylene rigid foam board friends, for the polyethylene rigid foam board function and usage estimates are very clear, and polyethylene rigid foam board is also known, it has a good seam sealing function The And its effect is better than other seams. Authoritative experts by the Chinese Ministry of Transportation test proved that the performance of polyethylene rigid foam board and wood, rubber, asphalt, etc., indeed has a more optimistic effect.

Polyethylene rigid foam board in China is not as widely used in foreign countries, in fact, has long been used in foreign roads, roads, bridges, overhaul, overpass, highway, airport runway, tunnel, underground channel, subway, bridge block wall seams, Highway joints on both sides of the slope and other concrete works in the joints and water sealing materials, power plant tide gates, cooling towers, construction and other projects in the concrete joints, expansion joints and sealing materials concrete roads, viaducts, culvert tunnels, airport roads, Dam slope protection and other water conservancy and electric power concrete project.

Polyethylene rigid foam board is not only suitable for a wide range, and the use of methods can also be used according to different circumstances using a variety of methods. Can be divided into vertical sealing seams, horizontal water sealing joints and other special joints three types of seam method. The polyethylene closed-cell foam board also has a unique superiority, its recovery rate is strong, no water absorption, impact resistance, weather resistance, chemical resistance, anti-aging is not other materials, and therefore, Foam board will be in our country to be more widely used.

Polyethylene closed-cell foam board has excellent product characteristics, which has an independent bubble structure, and thus the density is small, high recovery rate, get better customer evaluation. And closed-cell foam board corrosion resistance, it has acid, alkali, salt, oil and other organic solvent corrosion, can better resistant to aging. Asphalt encountered high temperatures will lead to melting caused by the flow, and closed-cell foam board will not appear this situation, the foam board is not only high temperature, but also low temperature, low temperature, the polyethylene rigid foam board will not brittle.

The foaming agent is also an essential raw material for polyethylene closed-cell foam board. The so-called foaming agent is a substance that makes the object material into holes. It can be divided into chemical foaming agent and physical foaming agent and surfactant. Chemical foaming agents are those compounds which, after being decomposed by heating, can release gases such as carbon dioxide and nitrogen and form pores in the polymer composition. The physical foaming agent is that the foam pores are changed by the physical form of a substance , Which is formed by the expansion of the compressed gas, the volatilization of the liquid or the dissolution of the solid; the foaming agent has a high surface activity and can effectively reduce the surface tension of the liquid and arrange the air in the double electron layer on the surface of the liquid film , The formation of bubbles, and then composed of a single bubble bubbles.

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