How to achieve excellent waterproof and moisture-proof performance with its high-density polyethylene surface layer?

As a high-performance thermoplastic, high-density polyethylene (HDPE) is widely used in many fields due to its high strength, wear resistance, chemical corrosion resistance and waterproof barrier properties. In PVC co-extruded foam board, HDPE plays a vital role as a surface material.

The waterproof barrier properties of HDPE mainly come from its tight molecular structure and low permeability. When the HDPE material is invaded by water or other liquids, its tight molecular chain can effectively block the penetration of water molecules, thereby keeping the inside of the material dry. This feature makes HDPE an indispensable waterproof material in the construction and packaging fields.

In PVC co-extruded foam board, the HDPE surface layer is tightly covered on the polystyrene foam core layer, forming an indestructible waterproof barrier. This barrier can not only effectively prevent the penetration of external water sources such as rainwater and groundwater, but also prevent the accumulation of internal water vapor, thereby keeping the inside of the board dry and stable.

The waterproof and moisture-proof properties of PVC co-extruded foam board have made it widely used in many fields. The following are some typical application scenarios:
Building exterior wall insulation: In the building exterior wall insulation system, PVC co-extruded foam board can effectively prevent rainwater penetration and prevent the wall from getting damp, moldy and corroded with its waterproof and moisture-proof performance. At the same time, its thermal insulation performance can effectively reduce energy consumption and improve the energy efficiency of the building.
Basement moisture-proof: The basement is vulnerable to groundwater invasion due to its long-term underground location. PVC co-extruded foam board can effectively prevent groundwater penetration with its tight waterproof barrier and keep the basement dry and clean. This is of great significance for protecting equipment and items in the basement and improving living comfort.
Packaging material moisture-proof: In the packaging field, PVC co-extruded foam board is widely used in the packaging of precision electronic products, high-end food, medicines and other items with its waterproof and moisture-proof performance. These items are sensitive to humidity and may cause performance degradation or deterioration once damp. The waterproof and moisture-proof performance of PVC co-extruded foam board can effectively protect these items from the influence of humid environment.

In a humid environment, PVC co-extruded foam board can not only maintain its original physical properties, but also effectively isolate water vapor and prevent mold growth. This feature is mainly due to the tight structure of its high-density polyethylene surface layer and the lightweight and thermal insulation properties of the polystyrene foam core layer.

In a humid environment, the HDPE surface layer of the PVC co-extruded foam board can effectively block the penetration of water molecules and keep the inside of the board dry. At the same time, the polystyrene foam core layer can effectively absorb and store heat due to its lightweight and porous structure, improving the thermal insulation performance of the board. The combination of the two enables the PVC co-extruded foam board to still maintain its excellent physical properties and stability in a humid environment.

PVC co-extruded foam board also has a certain ability to resist mold growth. In a humid environment, mold can easily breed and destroy the material structure. However, the high-density polyethylene surface layer of the PVC co-extruded foam board can effectively prevent the growth and reproduction of mold, thereby protecting the board from mold. This feature is of great significance for protecting buildings and packaging items from mold contamination.

The waterproof and moisture-proof performance of PVC co-extruded foam board not only meets the basic requirements for materials in the construction and packaging fields, but also plays an important role in ensuring the long-term stability and safety of buildings.

In the construction field, waterproof and moisture-proof is one of the key factors to ensure the long-term stability of buildings. Once a building leaks or is damp, it will not only cause problems such as mold and corrosion of the wall, but also affect the energy efficiency and safety of the building. PVC co-extruded foam board can effectively prevent these problems with its waterproof and moisture-proof performance, thereby ensuring the long-term stability and safety of the building.

In the packaging field, waterproof and moisture-proof performance is equally important. For precision electronic products, high-end foods and other items, once damp, it may cause performance degradation or deterioration. The waterproof and moisture-proof performance of PVC co-extruded foam board can effectively protect these items from the influence of humid environment, thereby ensuring their quality and safety.