Aging phenomenon of nylon elastic band and its safety hazards

Aging of nylon elastic tape is a complex process, which involves changes in the internal chemical structure of the material. Under long-term sunlight, ultraviolet rays will damage the molecular chains on the surface of nylon elastic tape, causing molecular chain breakage and cross-linking, thus hardening and brittle the material. At the same time, high temperature environment will accelerate the thermal oxidation reaction inside the nylon elastic tape, producing free radicals, which will further attack the material molecular chain, causing segment breakage and performance degradation. In addition, humid environment will cause nylon elastic tape to absorb moisture, causing material expansion and increased internal stress, further accelerating the aging process.

After aging, the original softness and elasticity of nylon elastic tape will be greatly reduced. Nylon elastic tapes that can be easily stretched and restored to shape will become stiff after aging and difficult to restore to their original state. This change will not only affect its use effect, such as causing discomfort in clothing, but also reduce the performance of the product in sporting goods. More importantly, nylon elastic tapes after aging are more likely to break when subjected to external forces. Since the molecular chains inside the material have been severely damaged, its strength and toughness have been greatly reduced. Therefore, during use, if it is suddenly subjected to a large tensile force or impact force, the nylon elastic tape may suddenly break.

This sudden breakage phenomenon will not only affect the normal use of the product, but also may bring serious safety hazards. In clothing, if the nylon elastic tape suddenly breaks, it may cause the clothing to fall off or deform, affecting the image and comfort of the wearer. In sports goods, such as trampolines, tensioners, etc., if the nylon elastic tape suddenly breaks, it may cause the user to lose balance or be impacted, causing physical injury. In medical supplies, such as tapeages, restraints, etc., if the nylon elastic tape ages and breaks, it may have a negative impact on the patient's fixation and treatment effect, and even endanger the patient's life safety.

Therefore, we must pay enough attention to the aging problem of nylon elastic tapes. On the one hand, manufacturers should strictly control the quality of raw materials and production processes during the production process to improve the anti-aging properties of nylon elastic tapes. On the other hand, when using nylon elastic products, consumers should also be careful to avoid exposing them to harsh environments for a long time, such as avoiding long-term sunlight, high-temperature baking, and long-term contact with humid environments. In addition, aging nylon elastic products should be replaced in time to avoid safety hazards caused by aging materials.