Biaxial Non-Crimp Fabric and Biaxial Woven Fabric

The difference between biaxial non-crimp fabric and biaxial woven fabric relates to the way the fibers are arranged in the composite material and the final component. There are two main differences:

Biaxial Non-Crimp Fabric

Structure:

• Consists of two layers of parallel carbon fibers arranged at ±45° angles.
• These layers are not interwoven but are held together by light stitching or a binding material.

Properties:

• High strength and stiffness along the fiber axes.
• Low waviness (crimp) as the fibers remain straight.
• Good drapability, making it easier to adapt to complex shapes.

Biaxial Woven Fabric

Structure:

• Here, the carbon fibers are interwoven in a woven pattern.
• The fibers are arranged at ±45° angles to each other.
• This pattern creates a regular crossing of the fibers.

Properties:

• Slightly lower strength and stiffness compared to non-crimp fabric, due to the waviness (crimp) of the fibers at the intersection points.
• Higher shear strength due to the interwoven structure.
• Good shape and dimensional stability.

Application:

Suitable for areas where higher shear strength is required, such as in certain structural components in construction or the automotive industry.