Introduction to Aramid Short Fibers

The full name of aramid short fiber is aromatic polyamide chemical fiber, which is a linear polymer composed of aromatic and amide groups. It has good physical properties, stable organic chemical structure, idealized mechanical equipment characteristics, and excellent characteristics such as high compressive strength, high toughness, heat resistance, corrosion resistance, light weight, and wear resistance.

Unlike general soft polymer molecular chains, the carbon chain structure of paired aramid fibers is mainly composed of rod-shaped molecular structures formed by the pairing of benzene rings. Due to the presence of large conjugated benzene rings, molecules cannot rotate due to chain opening, thus exhibiting a linear stiffness structure.

The carbon chain of aramid fiber molecules has good regularity and is equipped with a stiffness crystallization module, which is very easy to generate the shape of a liquid crystal display screen. When this type of stiffness molecular chain is in the liquid crystal display screen state, with the increase of content, it can generate a parallel plane ordered structure in parallel. The internal structure molecules undergo highly ordered chain opening, without unique stretching, and can achieve a flexion extension chain structure based solely on spinning terms, achieving high toughness.

Not only that, during the entire spinning process, this type of structure can also tend to double layered with high density of chemical fibers in the confined space, promoting high compressive strength of polymers. The molecular chains of aramid fibers tend towards the radial height of the chemical fibers, and the hydrogen atoms on the amide group can form covalent bonds with the carbonyl group on another molecular chain that can be used as an electronic device, promoting the establishment of covalent chemical cross-linking in the middle of the molecular chain.

Aramid short fibers include supramolecular structures with different shapes such as skin core structure, secondary crystal structure, and microfiber structure. Figure 2 is a plan view of the internal structure of aramid fibers. The surface layer of chemical fibers has a lower glass transition temperature than the core layer, and the thickness of the surface layer is approximately 0.1 μ M-1 μ M (varies depending on the type of chemical fiber and spinning process).