Vacuum Insulation Panel Testing

A Vacuum Insulation Panel (VIP) is a high-efficiency thermal insulation material made by combining a core material with a vacuum-tight envelope using high vacuum technology. The core principle is to block air convection and conduction through the vacuum environment, while the microporous structure of the core material suppresses thermal radiation, achieving an extremely low thermal conductivity (0.002–0.004 W/(m·K)) – approximately one-tenth that of traditional polyurethane foam. VIPs are currently widely used in home appliances, construction, cold chain logistics, and emerging fields.

Testing Products

Granular Core VIP

Foam Core VIP

Fibrous Core VIP

Composite Core VIP

VIPs for Building Applications (Class B)

VIPs for Industrial Applications (Class I)

Type I VIP

Type II VIP

Type III VIP

Type IV VIP

Testing Items

Appearance

Puncture Resistance (Force to puncture / Probe force)

Thickness Change Rate after Puncture

Thermal Conductivity after Puncture

Dimensional Stability

Dimensions (Length/Width/Thickness)

Warpage and Diagonal Difference (Flatness)

Area Density / Mass per Unit Area Deviation

Resistance to Damp Heat Aging (Humidity and heat aging / Durability)

Tensile Strength Perpendicular to Faces

Thermal Conductivity in the Center Region (Initial performance)

Compressive Strength

Surface Water Absorption (Water pickup after specified time)

Expansion Rate (Swelling) Perpendicular to Faces after Puncture

Long-term Durability / Aging (Aging at elevated temperature)

Reaction to Fire / Fire Performance

Testing Standards

Vacuum Insulation Panels (VIP): GB/T 37608-2019

Vacuum Insulation Panels for Building Applications: JG/T 438-2014

Service Advantages

The company hosts the National Center for Quality Inspection and Testing of Glass Fiber Products, holding national-level CMA qualification and CNAS laboratory accreditation.

As the lead drafter, the company has formulated or revised over 30 national and industry standards in the field of thermal insulation materials.

Specializing in testing in the thermal insulation and fiber fields for over 60 years.


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