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Over time, everything is subject to aging, and nylon is no exception. The aging of nylon is the result of the combined effects of multiple factors such as temperature, humidity, ultraviolet radiation, and oxygen.

Decoding the Aging Secrets of Nylon

Temperature

High temperatures accelerate molecular chain breakage; Nylon 66 has better heat resistance than Nylon 6 (safe for use at 130℃ and 93℃ respectively), but continuous high temperatures lead to a decrease in strength; low temperatures increase brittleness.

Humidity

High humidity promotes moisture absorption, swelling, and oxidative degradation.  At relative humidity above 80%, the elongation at break decreases significantly.

Light Exposure

Ultraviolet light triggers photo degradation. Under outdoor exposure, the rate of yellowing and strength reduction of nylon is 10 times faster than indoors, requiring protection through light stabilizers or UV-resistant coatings.

Microorganisms

In humid environments, nylon needs antibacterial treatment to prevent mold growth, avoiding mold stains that affect appearance and performance.

How to Slow Down Nylon Aging

Temperature Control

Nylon should be protected from prolonged exposure to high temperatures during storage or use.  Reasonable control of processing and usage temperatures helps maintain the stability of its mechanical properties.

Humidity Management

The storage and usage environment should be kept as dry as possible to reduce the impact of prolonged high humidity on the fiber structure.

Light Protection

When used outdoors or in strong light environments, measures such as shading, coatings, or UV-resistant treatments should be employed to reduce the impact of light on nylon performance.

Protection Against Microbial Erosion

In humid environments, nylon is susceptible to mold growth, affecting its appearance and performance. Antimicrobial and antifungal treatments can effectively reduce the risk of microbial damage to nylon, thus extending the material's lifespan.