How to measure the performance of insulation materials？

How to measure the performance of insulation materials?

——What are the common indicators?

The testing items for thermal insulation materials primarily include thermal conductivity, density, compressive strength, water absorption, combustion performance, dimensional stability, tensile strength, impact resistance, weather resistance, and environmental performance. These items are used to evaluate the material's insulation effectiveness, mechanical properties, durability, and safety, ensuring its reliability and compliance in practical applications. Below are the main testing items for thermal insulation materials:

1. Basic Properties

• ​​Thermal Conductivity​​: The core indicator for measuring the heat insulation capacity of insulation materials is the lower the value, the better the insulation performance.

• ​​Density​​: Mass per unit volume, affecting thermal performance and weight.

• ​​Water Absorption​​: A key indicator of moisture resistance.

• ​​Compressive Strength​​: Load-bearing and pressure resistance.

• ​​Tensile Strength​​: Resistance under tensile stress.

• ​​Compressive Strength​​: Load-bearing capacity under compression.

• ​​Bond Strength​​: Adhesion strength between the material and substrate.

2. Environmental Adaptability

• ​​Thermal Expansion Coefficient​​: Volume changes under temperature variations.

• ​​Weather Resistance​​: Ability to maintain performance under natural conditions such as sunlight, rain, and temperature fluctuations.

• ​​Freeze-Thaw Resistance​​: Structural stability after multiple freeze-thaw cycles.

• ​​Construction Performance​​: Ease of processing, workability, and adaptability to construction conditions.

3. Safety Indicators

• ​​Combustion Performance​​: Fire safety rating.

• ​​Fire Resistance​​: Stability under high temperatures and ability to prevent fire spread.

• ​​Formaldehyde Emission​​: Impact on indoor air quality.

• ​​Radioactive Substance Content​​: Detection of harmful elements.

• ​​Antimicrobial Performance​​: Ability to inhibit microbial growth.

• ​​Mold Resistance​​: Resistance to fungal erosion.

4. Other Important Indicators

• ​​Sound Insulation Performance​​: Ability to reduce sound wave transmission.

• ​​Environmental Performance​​: Environmental impact during production, use, and disposal.