Product Description:
Product Introduction
Polyurethane sandwich board is an innovative building material that
combines the strength of metal sheet and the excellent performance
of polyurethane core material. It consists of two layers of metal
sheet, typically galvanized steel plate or color steel plate, with
a layer of polyurethane hard foam core material in the middle.
Polyurethane rigid foam core material is produced by mixing
isocyanate and polyol under specific conditions. This creates a
uniform and fine closed cell structure inside, which adds to the
material's durability and insulation properties.
The production process of polyurethane sandwich boards is advanced,
ensuring that the layers are tightly combined to create a durable
and strong structure. These high-performance panels can be used for
various construction applications, making them a preferred choice
among builders and contractors.
Features:
Second, product characteristics
Excellent Thermal Insulation Performance
The thermal conductivity of polyurethane is extremely low,
generally between 0.018-0.024 W/(m · K), which is much lower than
other traditional insulation materials. This low thermal
conductivity benefits from the closed cell structure of
polyurethane, which effectively reduces the heat conduction,
convection and radiation. As a result, the building can maintain
warm temperatures in winter and cool temperatures in summer,
reducing energy consumption significantly. It also helps in energy
saving and emission reduction.
Excellent Fire Resistance
By adding appropriate flame retardants, polyurethane sandwich
panels can achieve different fire ratings, such as B1 (flame
retardant) or even A2 (non-flammable). In the event of a fire, it
can effectively delay the spread of the fire, inhibit the spread of
the flame, reduce heat release and smoke generation, gain valuable
time for personnel evacuation and fire rescue, and improve the fire
safety of the building.
Good Water and Moisture Resistance
Polyurethane itself is a hydrophobic material. Its closed-cell
structure prevents water penetration. With the protection of the
outer metal sheet, the sandwich board can effectively resist the
erosion of rain, snow and humid air, prevent water from entering
the interior of the temperature retaining core material, and avoid
the problem of thermal insulation performance decline, mold, rot,
and other problems caused by moisture. This ensures the long-term
stability of the thermal insulation system.
High Strength and Stability
The upper and lower layers of sheet metal provide enough strength
for the sandwich board to withstand large external forces, such as
wind loads, snow loads, and the weight of personnel and equipment.
The polyurethane core material also gives the sandwich board a
certain elasticity and toughness to ensure stability of the
building structure and avoid deformation or damage due to external
forces.
Excellent Sound Insulation
The polyurethane sandwich board has a good barrier effect on the
transmission of sound. It can effectively reduce the interference
of external noise on the indoor environment, creating a quiet and
comfortable living and working space for people. The sound
insulation effect depends on the thickness and density of the
sandwich board to a certain extent, and thicker and moderate
density sandwich boards have better sound insulation performance.
Easy Installation Features
Polyurethane sandwich panels usually have standardized sizes and
specifications, are relatively light in weight, and easy to handle
and install. At the construction site, various installation methods
can be used, such as splicing, anchoring, etc. The installation
process is simple and fast, which can effectively shorten the
construction period and reduce the construction cost.
Beautiful and Durable
The outer metal sheet can have a variety of colors and surface
treatment methods, such as galvanization, color coating, etc.,
making the sandwich board visually pleasing and suitable for
different architectural styles. The metal sheet and polyurethane
core have good durability, capable of resisting the natural factors
such as ultraviolet light, chemical substances, temperature
changes, and extending the service life of the sandwich board.
Applications:
Application Fields
Polyurethane sandwich panels have diverse application fields in
various buildings and facilities. Some of the application fields
are:
Industrial Building
Polyurethane sandwich panels have various applications in
industrial buildings such as warehouses, logistics centres and
industrial plants. They enhance the production environment by
providing stable temperature and humidity conditions, and reducing
heat exchange hence leading to a reduction in heating and cooling
costs. They also meet the requirements of fire protection and
building strength. In addition, polyurethane sandwich panels
protect goods from changes in temperature and humidity in
warehouses and logistics centres.
Commercial Building
Polyurethane sandwich panels are used in commercial buildings like
shopping malls, hotels, office buildings and supermarkets. They
create a comfortable indoor shopping environment and help in
reducing energy consumption in shopping malls and supermarkets. In
hotels and office buildings, the panels provide sound insulation,
thermal insulation, and fire protection performance, creating a
high-quality environment for customers and workers.
Residential Building
Polyurethane sandwich panels are used for external wall insulation,
roof insulation, and indoor partition in residential buildings.
They effectively improve the thermal insulation performance of the
residential buildings and reduce energy consumption in external
wall insulation. They protect the roof structure and extend the
service life of the waterproof layer of the roof in roof
insulation. When used in indoor partition, they are both
aesthetically appealing and provide a certain degree of sound
insulation.
Cold Chain Logistics
Polyurethane sandwich panels are used in cold storage, one of the
most important applications of polyurethane sandwich panels. They
have excellent thermal insulation properties that ensure
temperature stability, hence reducing energy consumption of
refrigeration equipment and ensuring storage quality of
refrigerated and frozen goods. The moisture-proof and antibacterial
properties also help maintain the sanitary environment of the cold
storage.
Agricultural Facilities
Polyurethane sandwich panels are also used in agricultural
facilities such as agricultural greenhouses and agricultural
products warehouses. The sandwich panels help adjust the indoor
temperature, humidity, and light to create a suitable environment
for crop growth in agricultural greenhouses. The freshness of
agricultural products can be maintained, and the storage period can
be extended in agricultural products warehouses.
Packing and Shipping:
Product Packaging:
- The PU sandwich panels will be packed in bundles.
- The panels will be wrapped with plastic film to protect them from
moisture and damage.
- The bundles will be securely strapped with steel bands for safe
transportation.
Shipping:
- The PU sandwich panels will be shipped via truck or container.
- The shipping method will depend on the customer's location and
order quantity.
- Delivery time will vary depending on the shipping method and
destination.
