Will the Insulation of Nylon Covered Wire be Affected by the Environment?

2025.04.29

Author：nylon coated wire

The insulation performance of nylon coated wire will be affected by the environment, mainly in terms of temperature, humidity, chemical corrosion and ultraviolet radiation:

1. The influence of temperature

Degradation of insulation performance at high temperature: The insulation performance of nylon material will drop sharply in a high temperature environment (such as over 150°C). The increase in temperature will cause the volume resistivity of nylon to drop rapidly, which is particularly obvious in a wet state, and may even make the nylon parts almost become conductors and lose their insulation performance.

Differences in thermal stability: The thermal stability of different nylon types (such as PA6 and PA66) varies, but in general, nylon is prone to softening or deformation at high temperatures, affecting its mechanical strength and insulation performance.

2. The influence of humidity

Degradation of insulation performance due to water absorption: Nylon material has a large water absorption capacity, which will affect its dimensional stability and electrical properties after absorbing water. Increased humidity will cause the dielectric strength and volume resistivity of nylon to decrease, thereby weakening the insulation performance.

The resistivity drops significantly in a wet state: Experimental data show that the volume resistivity of nylon in a wet state is lower than that in a dry state, especially in a high temperature and high humidity environment, the decline in insulation performance is more obvious.

3. Effect of chemical corrosion

Limited chemical resistance: Although nylon has a certain stability to oils, solvents and weak acid and alkali environments, its chemical structure may be destroyed under the action of strong acids, strong alkalis or certain organic solvents, resulting in a decrease in insulation performance.

Potential risks of long-term exposure: In harsh environments such as chemical and marine environments, nylon coated wires may be exposed to chemical media for a long time, and may age and crack, further affecting the insulation performance.

4. Effect of ultraviolet radiation

Performance degradation due to light aging: Nylon materials may undergo light aging under ultraviolet irradiation, resulting in molecular chain breakage or cross-linking, affecting their mechanical and insulation properties. Long-term exposure to sunlight may cause cracks or discoloration on the surface of nylon coated wires, and the insulation performance will decrease accordingly.

5. Combined effects of environmental factors

Synergistic effects in complex environments: In actual applications, nylon coated wires may be affected by multiple environmental factors such as temperature, humidity, chemical corrosion and ultraviolet radiation at the same time. The synergistic effect of these factors may accelerate the decline in insulation performance.

Qingdao Chenan Machinery Co., Ltd. has the advantage of developing and producing rubber winding equipment, with higher technology than various equipment assembly manufacturers in the industry. For more information about nylon coated wire, please contact us.

Company: Qingdao Chenan Machinery Co., Ltd.

Address: Yanjialing Industrial Park, East Chengma Road, Tongji New Economic Zone, Jimo District, Qingdao City, Shandong Province

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