Advantages and disadvantages of EPS insulation system

The EPS insulation system has the following advantages:
1), already in the system, mature technology. Since it has been in use in Europe and the United States for nearly three decades, the building has been built in the United States with 44 floors. Therefore, this technology has formed a system, and the bonding layer, the thermal insulation layer and the finishing layer can be used together, and there are many more mature technical documents.
2), the insulation effect is good.
3), because the insulation material uses expanded polystyrene, its price is not very expensive, making the whole system affordable. User-friendly.
4) There is no complicated construction process. After a brief training, the general construction unit can master the construction essentials and facilitate the promotion of technology.
Disadvantages of the EPS system:
1) Due to the nature of the board itself, its strength is not high, the bearing capacity is low, and the external facing brick needs to be strengthened.
2), the board has to go through a period of maturity before leaving the factory, it needs to be placed for a period of time before it can be used. If the curing time is insufficient, the quality of the sheet cannot be guaranteed, and the sheet shrinks after construction, causing the system to crack.
3), poor combustion performance, EPS material causes it to remain at an abnormal level, Beijing Radio’s fire is caused by the extremely low combustion performance of EPS.
4), not environmentally friendly, EPS is not environmentally friendly in the production process, it will eliminate a lot of waste and gas, and has a great impact on the surrounding environment.
5), poor thermal conductivity, resulting in not meeting the current 75 energy-saving standards promoted in China, basically EPS belongs to the insulation materials being eliminated.

Hangzhou Huasheng  eps Machine

How is Expanded polystyrene foam Manufactured?

Expanded Polystyrene foam is manufactured from the by-products, or left overs, from the oil refining process. FPM is a “Block Molder” of EPS which means we mold EPS into large blocks 36” x 48” x 120” in size. These blocks are then cut into smaller usable sizes that vary with the application. The description below explains how manufactures the EPS foam pieces and sheets you are familiar.

Buys raw material in the form of resin or beads of styrene. Each bead has a microscopic dot of Pentane formed into its center. This material is furnished in air tight bags. These bags keep the beads “fresh” by assuring that the Pentane within each bead can not escape into the atmosphere and render the material.

These beads of Styrene are about the size of a grain of salt and have a similar consistency. It is crucial that the beads are stored in a tightly controlled environment where the amount of Pentane within their plastic shell remains consistent. Each step of EPS production requires strict adherence very tightly controlled quality standards.

These beads of resin are loaded into a machine called a “pre-expander”. It does exactly what the name implies. Steam is injected into the beads at 212 degrees F. The heat accomplishes two things. The wall of each bead is softened and becomes flexible and the increased temperature also causes the Pentane to expand within the softened beads. The beads puff up like popcorn to 30 times their original size.

The next step is the molding process. It is at this point that the individual expanded beads are molded into a single, homogeneous block. This is the most crucial stage in the production process and it is essential that very strict quality control standards are adhered.