Performance characteristics of special extruded board for cold storage

　　Performance characteristics of special extruded board for cold storage　　1. Good thermal insulation　　The special extruded board for cold storage has the characteristics of high thermal resistance, low linearity and low expansion ratio. Its structural closed cell rate reaches more than 99%, forming a vacuum layer to avoid airflow heat dissipation and ensure the continuity and stability of thermal insulation performance. It has an advantage over 80% closed cell rate of foamed polyurethane. Practice has proved that the thermal insulation effect of 20mm thick XPS extruded thermal insulation board is equivalent to 50mm thick foamed polystyrene and 120mm thick cement perlite. Therefore, this material is suitable for the current building insulation.　

2. Excellent high strength and pressure resistance　　Due to the special structure of the special extruded board for cold storage, it has extremely high compressive strength and strong impact resistance. The compressive strength of XPS with different models and thickness can reach more than 150 ~ 500kPa. It can bear the ground load of various systems, and can bear the fields of Geothermal Engineering, expressway, airport runway, square ground, large cold storage and interior decoration and thermal insulation　

3. Waterproof and moisture-proof　　Water absorption is an important parameter for measuring thermal insulation materials. The thermal insulation performance of the thermal insulation material decreases after absorbing water. At low temperature, the water absorption is easy to freeze, damage the structure of the thermal insulation material, and the compression and thermal insulation performance of the plate decreases. Because the molecular structure of polystyrene itself does not absorb water, the molecular structure of the plate is stable and seamless, which solves the problems of water leakage, penetration, frosting and condensation of other materials.　　

4. The fabric is light and easy to use　　The fully closed cell foaming chemical structure and honeycomb physical structure of the special extruded board for cold storage have the characteristics of light weight, high strength, convenient cutting and transportation, not easy to damage and convenient installation.　

5. Good stability and corrosion resistance　　The special extruded board for cold storage will not age, decompose and produce harmful substances during long-term use. Its chemical properties are very stable and will not degrade due to water absorption or corrosion. It can maintain excellent performance even in high temperature environment. Relevant data show that XPS extruded insulation board still maintains excellent performance after 30 ~ 40 years of use, without degradation, mildew and volatilization of toxic substances.　

6. Environmental performance of products　　The special extruded board for cold storage has been tested by relevant national departments. It has stable chemical properties, does not volatilize harmful substances and is harmless to human body. The production raw materials are environment-friendly materials and will not produce any industrial pollution. This product is environmentally friendly building materials.