Honeycomb sandwich panels combined with CFRT composites skins (thermosetting materials and thermoplastic materials) are strong and tough as well as lightweight. In TOPOLO, the PP thermoplastic sandwich panels greatly reduce the cost and minimize the handing operation for producers.

 

Property comparison between thermoplastic and thermo-setting used in PP honeycomb sandwich panels

Properties Thermoplastic Composites Thermo-setting Composites
Light Weight ++++ ++
Recyclable Y N
Cross-linked N Y
Common Materials PP,ABS, PE,PS, PC  Polyester,Vinyl ester,Epoxy, PU
Process Melted and Formed From liquid to solid, through polymerization or cross-linking

 

Advantages

Lightweight and increased performance;

Excellent impact and compressive resistance;

High strength and rigidity;

No VOC and completely recyclable;

Improved thermal insulation properties

 

Parameters

Properties Test Standards Units Typical Value
Weight / Kg/m2 4.4(25 mm core)

4.8(30 mm core)

Impact Resistance GB/T 1451 kJ/m2 >25
Compression Strength1 GB/T 1453 MPa 1.5~2.2
Compressive Modulus1 GB/T 1453 MPa 30~100
Bending Force GB/T 1456 N 1200~2500
Shear Strength GB/T 1455 MPa 0.45~0.55

Note1: Typical value is affect by the thickness of the sandwich panel.

 

Application

The PP honeycomb sandwich panels made of CFRT skin (continuous fiber reinforced thermoplastic) composites are widely used in architecture, road construction and car industry.