Carbon fibers are so popular, but do you really understand them?

As we all know, carbon fiber is a new kind of high strength and high modulus fiber material with more than 95% carbon content. It has the characteristics of “soft outside and rigid inside”. The shell is hard and the textile fiber is soft. Its quality is lighter than that of metal aluminium, but its strength is higher than that of steel. It also has the characteristics of corrosion resistance and high modulus. It is often called “the king of new materials”. It also has the nickname of “black gold”. It is a new generation of reinforcing fibers.

These are all popular science knowledge that stops at the surface. How many people know about carbon fibers in depth?

1.Carbon Cloth:

Starting from the simplest carbon cloth, carbon fibers are very thin fibers. They are similar in shape to hair, but more than hair.

It’s hundreds of times smaller, but if you want to use carbon fiber material as a product, you have to weave carbon fiber into cloth, and then lay it on one layer by another, which is called carbon fiber cloth.

2.Unidirectional cloth:

Carbon fibers are bundles of carbon fibers arranged in the same direction, forming a one-way cloth. Netizens Say Use List

Carbon fibers with oriented fabrics are not good. In fact, it’s just a sort of arrangement, which has nothing to do with the quality of carbon fibers.

Because the one-way cloth is not beautiful, there are marble lines.

Carbon fibers are marbled in the market now, but few people know how they come from.

In fact, it is also simple, that is, to get the broken carbon fibers onto the surface of the product, and then coat them with resin, vacuum, let these debris stick to it, thus forming carbon fibre lines.

3.Woven fabric:

Knitted cloth is usually said to be 1K, 3K, 12K carbon cloth. 1K refers to 1000 carbon fibers that are woven together. This has nothing to do with the material of carbon fibers, but with the appearance.

4.Resin:

Resin is used to coat carbon fibers. If there is no resin coated carbon fibers, they are very soft, 3000 carbon wires.

It breaks with a gentle pull of the hand, but when coated with resin, carbon fibers become harder and stronger than iron and steel.

Grease painting is also exquisite, one is called prepreg, the other is common law.

Pre-immersion is to use carbon cloth to bond the resin to the die in advance; the common law is to apply it as you like.

Pre-impregnated fabrics are preserved at low temperatures and cured at high temperatures and pressures, so that the carbon fibers will have higher strength. Common law.

When used, the resin and curing agent are mixed together, coated on the carbon cloth, glued, then vacuum, and put in a few hours to OK.