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PU Thermal Insulation Boards
It is a high-performance ventilation duct product, which is widely used in HVAC systems. The following is a detailed introduction:
Basic Structure: It is a sandwich structured panel. The core is Polyurethane(PU) foam, which is a closed-cell insulating material. The two outer layers are aluminum sheets or aluminum foils.
Panel Structure: Silver Alu. Foil/ PU Foam/ Silver Alu. Foil
Foam Density: 50kg/CBM
Panel Dimension: 3950mm*1200mm*20mm or 2900*1200*20mm
Alu. Foil: 60 or 80 Micron (Embossed)
Fire Rating: Class 0 (BS476Part 6&7)
Main performance of PU Thermal Insulation Boards
1. Outstanding thermal insulation and heat preservation capacity: As a leading insulation material, the thermal conductivity of PU insulation board is much lower than that of polystyrene board (EPS) and extruded polystyrene board (XPS), and its insulation effect is 1.5 to 2 times that of EPS and 1.2 to 1.5 times that of XPS.
Under the same insulation requirements, its thickness can be reduced by 30% to 50%, making it particularly suitable for indoor and small-sized apartments and other space-constrained scenarios, which can maximize the retention of usable area.
2. Significant structural and waterproof advantages: The board density is only 45-55 kg/m³, which is light in weight and easy to transport and install. Meanwhile, its compressive strength reaches 0.2-0.3 MPa, capable of withstanding certain loads and also serving as a structural support function.
Its closed-cell structure makes its water absorption rate less than 1%, ensuring stable long-term water immersion performance. Its adaptability to humid environments far exceeds that of water-absorbing insulation materials such as rock wool, making it particularly suitable for basements, cold storage and other scenarios.
3. Good weather resistance and chemical stability: The operating temperature range covers -50°C to 120°C, and it can withstand higher temperatures for a short period of time, meeting the requirements of different environments.
It has stable chemical properties, is resistant to acids, alkalis and corrosion, but it is prone to aging when exposed to ultraviolet rays for a long time. A protective layer is needed to avoid this problem.
Main Production Process of PU Thermal Insulation Boards
Application scenarios of PU Thermal Insulation Boards
1. Construction field: It is the preferred material for insulation of exterior walls, interior walls, ceilings and floors. In cold northern regions, using it for interior wall insulation and covering it with gypsum boards can significantly reduce heating energy consumption. When used on exterior walls, the composite color steel plates can enhance corrosion resistance and aesthetic appeal.
2. Cold Chain and Special Spaces: With a wide temperature adaptability range and stable insulation effect, it has become the core insulation material for cold storage, refrigerated trucks, and home wine cellars, precisely maintaining a low-temperature environment and reducing the energy consumption of the refrigeration system. When used in damp Spaces such as basements and storage rooms, it can effectively prevent the walls from getting moldy.
3. Industrial field: It is used for thermal insulation and heat preservation of industrial equipment and pipelines to reduce energy consumption. Some plates with special additives can also be adapted to industrial scenarios with strong corrosiveness such as chemical engineering, thus extending the service life of equipment.
Market Prospects of PU Thermal Insulation Boards
1. Dual policy and demand benefits: Driven by the "dual carbon" goals and building energy conservation policies, the demand for high-efficiency insulation materials has soared. Due to its high insulation efficiency and compliance with green building requirements, the market demand for PU insulation boards is continuously expanding.
2. Competitive landscape and price positioning: Compared with similar materials, it has the best insulation performance, but the price is relatively high, approximately 100-300 yuan /m², far exceeding EPS (30-80 yuan /m²) and rock wool board (50-150 yuan /m²). It has strong competitiveness in the mid-to-high-end market, but in cost-sensitive scenarios, it needs to compete differently from other materials.
3. Direction of technological upgrade: Currently, the industry focuses on fire prevention and environmental protection upgrades. By improving the formula of flame retardants, products can be upgraded from B2 grade (flammable) to B1 grade (difficult to ignite) and even approach A grade (non-flammable). At the same time, promote environmentally friendly foaming agents such as pentane to replace traditional high-ozone-consuming substances, which is in line with the trend of environmental protection.
Potential Risks and Response Suggestions of PU Thermal Insulation Boards
1. Fire prevention and safety hazards: Ordinary PU insulation boards are flammable when exposed to open flames, and the combustion releases toxic gases such as carbon monoxide and cyanide. Countermeasures include: giving priority to using B1 grade and above products in indoor and crowded places; During construction, it should be covered with a fireproof decorative layer of 12 millimeters or more to avoid direct exposure.
2. Environmental protection and health issues: Low-quality products may retain VOCs and release harmful substances such as formaldehyde. When purchasing, it is necessary to confirm that it complies with the GB 18580 environmental protection standard. After installation, ventilate for 1-2 weeks and test the formaldehyde concentration (which should be ≤ 0.08mg /m³) before putting it into use.
3. Key points for construction and maintenance: The board has high hardness and should be cut with special tools. Dust protection measures should be taken during construction. During long-term use, avoid direct sunlight and proximity to high-temperature equipment. Regularly check the integrity of the protective layer to prevent aging that may affect performance.
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