Some Influencing Factors Affecting the Tensile Breaking Strength of Aramid Yarn

The fiber strength of aramid yarn is very high, which means that its tensile strength is very good, so it is widely used in fire safety, electric power construction, railway, petrochemical equipment and other fields. As a kind of thread with good fiber ductility, the performance of aramid thread can meet the application requirements of various natural environments, especially in the field of cables, which has played a significant role. The reason why aramid thread is widely used is that it has good tensile strength, so what are the factors that affect the tensile breaking strength of aramid thread, we can easily understand it.

Influencing Factors of Tensile Breaking Strength of Aramid Yarn

①Fiber length: Fiber length, generally longer than 2Lc (dislocation length), has a great impact on the strength of aramid yarn. For example, the average short-lint rate in the aramid fiber increases by 1%, and the compressive strength of the aramid thread decreases by 1% to 1.2%.

②Compressive strength of fiber: The higher the relative compressive strength of fiber, the higher the compressive strength of aramid fiber. In addition, the various factors that affect the fiber strength will also be reflected on the aramid yarn, but they are not all the same because they are related to the kramid yarn.

③Fiber particle size distribution: The fibers are thinner and softer, and they are closer to each other in the yarn, the dislocation length may be reduced, and the fiber yarn count in the yarn cross section can be more, so that the chance of fiber transfer on the inner surface of the yarn is increased. , each fiber is supported evenly, so the compressive strength of the yarn is higher.

The above are some influencing factors that will affect the tensile breaking strength of aramid yarn. If these factors are mastered, it will be helpful for aramid yarn manufacturers to improve their tensile strength according to the production process. In that case, aramid yarn There will be better stretch performance, and it is believed that the service life will also be improved for faster playback, and the application space may be more extensive. Some of the products that everyone uses in manufacturing are actually made of aramid threads, which can be found if you observe carefully.