Performance comparison of four kinds of composite materials

Energy consumption comparison of air ducts made of different materials

he lowest energy consumption is calculated based on 2400 hours of operation of air conditioning system in the whole year (assuming 8 months of operation, 30 days of operation per month, 10 hours of operation per day on average in the whole year).
Comparison of thermal conductivity and annual power consumption of common air ducts (insulation thickness 20 mm):

Harm of phenolic air duct to human health, safety and environment：

Phenolic air duct has puzzled many customers because of its low price. Its brittleness, cracking, acid corrosion, formaldehyde and other defects are often covered by the manufacturer's propaganda and not known by customers. These defects are often found when the air duct is put into operation, and it will be too late to regret.

原因分析：

1、 Phenolic air duct is powder structure with poor brittleness;

2、 Due to the powdery structure of phenolic resin, all glues lose adhesion and are easy to crack;

3、 In the production process of phenol formaldehyde, the hydrochloric acid content is 12-15%, which has strong acidity and seriously corrodes the surface layer of aluminum foil, resulting in the loss of protection of air duct plate.

Hazard analysis: 

1、 As a result, the air conditioning system can not operate, and the shopping environment comfort of the mall is seriously reduced;

2、 Phenolic powder and formaldehyde in phenolic directly blow into the mall, seriously affecting the health of customers.

Performance comparison with traditional metal air duct

Advantages and characteristics of materials compared with other similar materials
Compared with traditional air ducts, PIR energy-saving and thermal insulation air ducts have the following advantages:
A、The most advanced integrated design, beautiful and generous, air duct bearing pressure ≤ 2500pa, simple processing, low production cost under the same environmental and technical conditions.

B、The best energy-saving and heat preservation performance: thermal conductivity 0.022 w / MK, limiting the condensation water drop.

C、The most environmentally friendly essential characteristics: adopting the all water foaming technology to meet the international environmental protection requirements; no harmful substances, no corrosion, neutral, mildew resistant and antibacterial; it is recognized as a food grade environmental protection type thermal insulation material.

D、The most stable physical properties: PIR is a kind of high-performance ring-shaped macromolecular structure with high strength and toughness. It can bear high pressure and is durable (no bubble, no stratification and no dust falling). Its service life is more than 30 years, 3-5 times of the traditional metal air duct.

E、Baijia PIR air duct meets the requirements of building technical code for clean operation Department of hospital, code for design of heating ventilation and air conditioning and code for acceptance of construction quality of ventilation and air conditioning engineering. The fire resistance and flame retardant passed TB / t3237-2010 (oxygen index 33.1%, flammability class A, smoke density and smoke toxicity qualified), en 45545 R1 Hl3, and GB 8624-2012 classification of burning performance of building materials and products class A.