10Reasons to Choose Phenolic Duct(pre-insulated duct)
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In recent years, phenolic aluminum foil composite air ducts have emerged and developed rapidly, showing their talents in ventilation projects with their unique advantages. It has been applied in many important engineering buildings. For a long time, in ventilation projects, the material of ventilation and air conditioning pipes is mostly galvanized steel sheets. The outside of the pipe is sometimes covered with insulating layers such as glass wool, polyethylene foam or rubber sponge. However, this kind of traditional air duct has high production cost, heavy weight, long installation period, poor heat insulation performance and poor appearance, which makes the users and designers of central air conditioners eagerly hope for the emergence of new air duct materials.
Phenolic aluminum foil composite board is a sandwich panel made of phenolic foam board and aluminum foil. On-site processing and molding according to the design specifications, one-time hoisting, no need to add insulation layer. The phenolic aluminum foil composite air duct system has excellent fire protection performance, excellent heat insulation performance, corrosion resistance and aging resistance, good sound insulation performance, light weight and convenient construction, and has achieved obvious social and economic benefits.
Here are ten reasons to choose phenolic duct:
1. Lightweight to reduce building loads
The phenolic aluminum foil composite air duct is light in weight, about 1.4 kg/㎡. The bulk density of galvanized steel air duct (0.8mm thick) and glass fiber reinforced plastic air duct (3 mm thick) is 7.08 kg/㎡ and 15~20 kg/㎡ respectively. This can greatly reduce the load on the building, and is extremely beneficial to the installation of the air duct. When installing, it only needs to set up a bracket every 4m or so to have enough supporting force. This greatly reduces the requirements for the bearing capacity of brackets and hangers, making transportation and installation very convenient.
2. Good thermal insulation, can greatly reduce the heat dissipation loss of the air conditioner
The thermal conductivity of phenolic composite air duct is 0.016~0.036W/(m·k). The thermal conductivity of galvanized steel air ducts and FRP air ducts is much larger. In addition, the unique connection method of the phenolic composite air duct ensures the excellent air tightness of the ventilation system, which is close to 8 times that of the galvanized steel air duct. Some data show that when transporting the same amount of heat (cold), the heat loss of the galvanized steel air duct is 15%, the heat loss of the fiberglass air duct is 8%, and the heat loss of the phenolic foam insulation material air duct is less than 2%.
3. Durable and long service life
Phenolic composite air ducts are not as easy to rust, aging, and damage as traditional air ducts, and their service life is at least 15 years. The service life is more than 3 times longer than that of traditional air ducts. In addition, the reuse rate of phenolic composite air ducts can reach 60% to 80%, while traditional air ducts can hardly be reused.
4. Good noise cancellation
The interlayer of the phenolic aluminum foil composite air duct is a porous phenolic foam material board, which has good noise reduction performance. In the central air-conditioning system, it can significantly reduce indoor noise. The phenolic composite air duct itself is a very good pipe muffler, and there is no need to install muffler accessories such as muffler covers or muffler elbows.
5. Lower the height of the storey
Traditional air ducts require on-site insulation layer construction, so a certain construction height is required, which puts additional requirements on the building's storey height. The phenolic aluminum foil composite air duct does not require on-site insulation construction, so there is no need to reserve construction space, which can reduce the height of the building.
6. The construction period can be shortened
The phenolic aluminum foil composite air duct is very light in weight, and the installation is more convenient and quicker than the traditional air duct. When the air duct is hoisted, the required hangers are simple, the number is small, and almost no machinery is used. The production is simple and simple, completely breaking through the traditional craft, greatly shortening the construction period, and the on-site modification is also very convenient. According to on-site calculations, each worker can install 20.0~30.0 ㎡ per day during the installation of phenolic aluminum foil composite air duct, while the traditional air duct is only 4.0~5.0 ㎡/(day · person). Compared with traditional air duct manufacturing, the production efficiency of phenolic aluminum foil composite air duct is increased by 4 to 5 times.
7. Hygiene
The surface of the phenolic aluminum foil composite air duct is sealed with aluminum foil, thus ensuring the hygiene of the conveying medium, avoiding secondary pollution, and the inner layer has no condensed water and no rust. In traditional air ducts, glass wool and asbestos are easy to absorb moisture, and the thermal insulation performance is seriously deteriorated after absorbing water. Moreover, asbestos is a carcinogen, and glass wool dust can irritate the skin and make construction workers itchy all over. In addition, galvanized steel air ducts are prone to rust and cold bridges.
8. Beautiful, suitable for surface installation
Phenolic aluminum foil composite air duct can be made into various colors, beautiful, especially suitable for surface installation. The surface of the traditional air duct needs to be wrapped with aluminum foil on site, so the surface installation effect is not very good.
9. Wide range of applications
Galvanized steel air ducts are widely used, but their service life is low in high humidity environments. The use of FRP ducts in hospitals, food processing plants, basements and other places with dust-proof requirements and high humidity is also restricted. The phenolic aluminum foil composite air duct can be widely used in industrial and civil buildings, hotels, hospitals, office buildings and other places with special requirements.
10. Strong temperature adaptability
Phenolic composite air ducts are suitable for a wide range of temperatures and can be used at high and low temperatures (-140°C to 150°C), unlike some other composite air ducts that can only be used at a temperature of 50°C.
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1.The strength, durability and moisture resistance of phenolic plywood make it a wonder of modern engineering. This material, which is made up of phenolic resin-bonded wood veneers, has found a place in many industries from furniture to construction. The phenolic resins that are used to make it give it a unique edge over other types of plywood.
1.The phenolic plywood polymer is at the core of the superior properties of phenolic wood. It provides the plywood with remarkable chemical, fire, and water resistance. This resin is a product of formaldehyde and phenol in the presence a catalyst. It undergoes a polymerization process that produces a matrix of highly cross-linked polymers.
2.In plywood production, phenolic resin is used to increase its durability and longevity. This makes it a great choice for applications that require longevity and resistance against harsh conditions.
1.The production of phenolic wood plywood is an example of technological progress in the field. The process begins with selecting high-quality veneers made from hardwoods for their inherent durability and strength.
2.The veneers are coated in phenolic resin layer by layer under controlled conditions, ensuring even distribution and optimal adhesion. The veneers are stacked with successive layers of grain oriented at an angle to each other to improve the structural integrity of final product.
3.After stacking, the assembly is subjected to a high pressure and high temperature press cycle. This step is crucial to ensure that the phenolic resin has been completely cured, turning it into an infusible thermoset matrix. The veneers are then bonded together and the panel becomes a robust and cohesive one. This pressing process is carefully controlled for plywood with varying dimensions and thicknesses, tailored to meet specific requirements.
1.The properties of phenolic plywood make it an excellent choice for a wide range of applications. The hydrophobic resin in phenolic plywood gives it an unmatched moisture resistance. It can withstand water and humidity exposure without delamination. It is therefore an ideal material for outdoor and marine applications.
2.The chemical resistance of phenolic wood makes it resistant to many acids, bases and solvents. This allows its use in industrial settings and laboratories that are exposed to chemical spills. Fire resistance is a key feature, adding an extra layer of safety to areas that are prone to fires.
3.The strength and rigidity of phenolic ply are exceptional. This is due to the combination of hardwood veneers with the phenolic resin matrix. It is ideal for structural, flooring, and formwork applications because it can withstand heavy loads. Its smooth surface and ability to hold nails and screws firmly increase its utility for furniture and cabinetry.
1.Its versatility allows it to be used in many different applications. It is often used in construction as formwork to provide a smooth finish on concrete structures. Due to its durability, it can be reused multiple times. It is also used for wall sheathing, flooring and roofing in environments that require chemical and moisture resistance.
2.In the transportation industry, phenolic panels are used to manufacture containers, trailers and vehicle interiors. They benefit from their strength, light weight, and resistance to weather and wear. It is used in boat construction for its structural integrity and moisture resistance.
3.Its aesthetic appeal, ease of machining, and durable finish make it an attractive and popular choice for cabinetry and furniture. The resistance of the material to moisture and chemicals makes it an ideal choice for laboratory work surfaces and industrial worktops.
The phenolic wood is a testament to innovation in the material sciences, as it offers a combination durability, resistance and strength that no other materials can offer. The wide variety of uses for phenolic plywood demonstrates its versatility and value, both to consumers and industries. The potential of phenolic wood is only increasing as technology advances. This material offers new opportunities and applications.
This article highlights the importance and potential of phenolic plywood in modern engineering.
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