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What is the difference between 3K carbon fiber cloth "4x4" and "2x2"?

Views:14 Author:Linda Publish Time: 2023-08-02 Origin:

In carbon fiber composite materials, 3K carbon fiber twill is a common textile structure. Among them, "3K" means that there are 3000 carbon fiber filaments in each yarn bundle, and "twill" means that the yarns cross the fabric at a certain angle.

"4x4" and "2x2" indicate how the twill is woven and the density of the yarn bundles. The specific meaning is as follows:

4x4

1. 4x4 Twill:This means that in every inch (or centimeter) of fabric, 4 strands of yarn pass over 4 strands of yarn, creating an interlaced weaving structure. This weaving method can provide higher fiber density and stronger mechanical properties, suitable for applications requiring high strength and rigidity.

2x2

2.2x2 Twill:This means that in every inch (or centimeter) of fabric, 2 strands of yarn pass over 2 strands of yarn, creating an interlaced weaving structure. Compared to 4x4 twill, 2x2 twill has a lower fiber density and larger gaps between fiber bundles, resulting in a material with relatively lower strength and stiffness. But at the same time, 2x2 twill has better flexibility and impact resistance for applications that require vibration resistance and energy absorption.

In summary, 4x4 twill has high strength and rigidity and is suitable for applications requiring high performance, while 2x2 twill has good flexibility and impact resistance and is suitable for applications requiring energy absorption and vibration resistance. Choosing the right weave structure depends on the specific application requirements.


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