The comparison between the service life of Maineng environmentally friendly yellow board (polystyrene insulation board using carbon dioxide foaming technology) and ordinary extruded board needs to be analyzed from multiple dimensions such as material characteristics, environmental tolerance, and performance attenuation. The following is a specific comparison:
1. Comparison of core influencing factors
dimension environment-friendlyHuangplate Ordinary extruded board
foaming process Carbon dioxide (CO ˇ) foaming, the closed-cell structure is more uniform and denser Traditional chemical foaming (such as HCFC/HCFC) has a slightly lower closed cell rate
water absorption ≤1.5%(low) 1.5%~3.0%(high for some products)
Water resistance and aging resistance Low water absorption reduces the risk of softening and mildew caused by water penetration High water absorption may accelerate sheet degradation, especially in long-term humid environments
Chemical stability No fluoride residues, more stable chemical properties Traditional blowing agents may leave trace amounts of harmful substances and release them for a long time
Deformation resistance Higher compressive strength (150~300 kPa), not easy to deform due to load Low compressive strength (100~250 kPa) and easy to crack due to extrusion
2. Comparative analysis of service life
1. Material aging mechanism
·Ordinary extruded board: Traditional foaming process may cause more defects in the closed-cell structure and higher water absorption. When exposed to humid environments for a long time (such as leakage from external walls and water accumulation on the ground), moisture seeps into the interior of the board and will destroy the molecular structure of polystyrene, accelerate aging and lead to an increase in thermal conductivity and a decrease in strength. In addition, if traditional blowing agents are not completely volatilized, they may slowly release harmful substances and affect the stability of the board.
·Environmentally friendlyHuangBoard: The closed-cell structure formed by carbon dioxide foaming technology is more uniform and dense, and the water absorption rate is significantly reduced. It can effectively resist water intrusion and delay the aging of the material due to water erosion. At the same time, the absence of fluoride residues avoids the risk of chemical corrosion, has better chemical stability, and performance decay more slowly during long-term use.
2. Impact of practical application scenarios
·Humid environment (such as rainy areas in the south, basements, etc.): Environmentally friendly blue boards have stronger resistance to water damage due to their low water absorption, and their service life can be extended by 5 to 10 years compared with ordinary extruded boards.
·High-load environments (such as ground and roof): Environmentally friendly blue boards have higher compressive strength, are not prone to cracks or deformation due to long-term loading, and have more lasting structural stability. They are especially suitable for floor heating, parking lots and other scenarios. The service life can be extended by 3 to 5 years.
·Open air or high temperature difference environment: Both may cause fine cracks due to thermal expansion and contraction, but the closed-cell structure of the energy-saving blue board is denser, has stronger deformation resistance, and has a relatively slower aging speed.
3. Industry data reference
According to the "Research Report on Durability of Building Insulation Materials" and the manufacturer's measured data:
·Ordinary extruded board: In a standard environment (dry, no-load), the design service life is usually 10 - 15 years; if it is in a humid or high-load environment for a long time, the actual life may be shortened to 8 - 12 years.
·Environmentally friendlyHuangBoard: Under the same conditions, the designed service life can reach 15 to 20 years; in a humid/high-load environment, the actual life can still be maintained for 10 to 15 years, which is about 30% higher than that of ordinary extruded boards.
III. Conclusions and recommendations
environment-friendlyHuangThe service life of the board is usually longer than that of ordinary extruded board. The core advantages stem from its lower water absorption, more stable chemical structure and higher compressive strength, especially in harsh environments such as humidity and high loads.
Selection suggestions:
·If the project is located in rainy areas, requires ground/roof insulation, or has high durability requirements (such as public buildings, cold chain facilities), energy-saving type is preferredHuangboard.
·Ordinary extruded boards can be used in short-term or low-load scenarios in dry environments (such as temporary buildings), but attention should be paid to waterproof treatment.
·No matter what kind of material, supporting measures such as joint sealing and waterproof and moisture-proof layers need to be taken during construction to maximize the service life.
Note: The specific life is also related to the production process, brand quality and maintenance. It is recommended to refer to the durability test report provided by the manufacturer (such as weather resistance test data).
