Molding Process
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Surface Static Electricity Problem of Cast Polypropylene Film Products
Fenómeno del problema
Static electricity easily accumulates on the product surface, attracting dust or causing damage to electronic components.
Análisis de la causa
(1) The volume resistivity of cast polypropylene film is high, and static electricity is not easily released
(2) No antistatic agent is added or the amount is insufficient
(3) The ambient humidity is low, and static electricity easily accumulates
(4) Static electricity is generated during friction processing
(5) The surface treatment of the product is insufficient
Solución
(1) Add an antistatic agent (0.1-0.5%)
(2) Use a permanent antistatic agent or conductive filler
(3) Increase the production environment humidity to 50-60%
(4) Ground the equipment to eliminate static electricity accumulation
(5) Coat the product surface with an antistatic coating
Conclusión clave
The static electricity problem is caused by the high insulation of the material.
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