How to improve the anti-aging properties of electrical nonwoven fabrics?

2026-01-10 10:37:14

Improving the anti-aging properties of electrical nonwoven fabrics can be approached through material modification, process optimization, and the use of additives. Material modification includes selecting highly stable polyester fibers or blending them with other aging-resistant fibers. For example, adding aramid or glass fibers can improve the thermal stability and UV resistance of the nonwoven fabric. Furthermore, introducing aging-resistant groups through chemical grafting or surface treatment can also slow down the aging process.

Process optimization is key to improving anti-aging properties. During spinning, controlling the melt temperature and draw ratio can improve the crystallinity and orientation of the fibers, thereby enhancing their heat resistance and mechanical stability. In the web forming and bonding processes, adjusting the fiber distribution and bonding method can reduce stress concentration within the material, preventing aging caused by mechanical fatigue. Heat setting processes can stabilize the fiber structure and reduce dimensional changes at high temperatures.

The use of additives is an effective means of improving anti-aging properties. Antioxidants can inhibit the oxidation reaction of polyester molecular chains, delaying material aging. UV absorbers can shield against ultraviolet rays in sunlight, reducing photodegradation. Light stabilizers prevent chain reactions by capturing free radicals. The selection and proportioning of these additives need to be determined based on the specific application environment of the nonwoven fabric.

Furthermore, environmental control is also an important measure to improve anti-aging performance. Avoiding prolonged exposure to high temperature, high humidity, or strong light during storage and use can reduce aging. Appropriate packaging and protective measures, such as using UV-protective films or desiccants, can further extend the service life of the nonwoven fabric. In conclusion, improving the anti-aging performance of electrical nonwoven fabrics requires a comprehensive approach using multiple methods to ensure stable performance during long-term use.