GB/T 42909-2023 in English

1. Background of standard formulation

With the rapid development of wireless terminal equipment, the role of conductive adhesive tape in electromagnetic shielding and conductive connection is becoming increasingly important. In order to ensure product quality and technical consistency, the national standard GB/T 42909-2023 came into being, which regulates the design, production and application of conductive adhesive tape.

2. Comparison of standard frameworks

3. Core technical requirements

Conductive adhesive tape must meet the following requirements:

• No wrinkles on the surface, neat cross section.
• Specification size deviation is controlled within ±15%-±30%.
• 180° peel strength≥3.5N/cm (normal), ≥3.0N/cm (high temperature and high humidity).

4. Implementation Suggestions

Enterprises should:

1. Establish a complete quality control system to ensure that each batch of products meets the standard requirements.
2. Regularly calibrate test equipment, such as precision resistance meter and compression tester.
3. Strengthen employee training, especially in appearance inspection and shielding effectiveness testing.

5. Analysis of Technological Evolution

In recent years, conductive adhesive tape technology has shown the following trends:

• Material diversification: From traditional metal substrates to nano-composite materials.
• Performance improvement: Shielding effectiveness and compression resistance indicators are continuously optimized.
• Application expansion: Increasingly used in 5G devices and wearable devices.