Anti static POM (polyoxymethylene) is a special engineering plastic that adds anti-static agents and other components to ordinary POM.
1. Performance characteristics
-Electrostatic protection performance
-Its surface resistivity is generally between 10 ⁶ -10 ¹² Ω, which can effectively prevent the generation and accumulation of static electricity. This is because the added anti-static agent can form a conductive path on the surface of the material, which can timely conduct away static electricity. In industries such as electronic manufacturing that are sensitive to static electricity, it is possible to avoid damage to electronic components caused by electrostatic discharge, such as preventing integrated circuit chips from being broken down by static electricity.
-Mechanical performance
-Retaining the excellent mechanical properties of POM. It has high strength and rigidity, with a tensile strength of 60-70MPa, a high elastic modulus, and good fatigue resistance. Can withstand certain external forces without deformation, suitable for making mechanical components that need to withstand repeated forces, such as gears, pulleys, etc.
-Wear resistance performance
-The friction coefficient is low, usually around 0.1-0.3, and the wear resistance is excellent. This is due to the molecular structure and crystalline characteristics of POM itself, which gives it good self-lubricating properties during friction. It can work normally even under non lubricated or low lubricated conditions, reducing wear between components and effectively extending the service life of parts.
-Chemical stability
-Has good tolerance to organic solvents, oils, and other chemical substances, but is not resistant to strong acids and bases. In general chemical environments, such as contact with common lubricants, release agents, etc., it can maintain stable performance and prevent chemical reactions from causing material performance degradation.
-Processing performance
-Easy to process and shape, various shapes of products can be made through processing methods such as injection molding and extrusion. It has good melt flowability, can fill complex mold cavities, and the formed product has high dimensional accuracy, which can meet the processing requirements of precision mechanical parts.
2. Application scenarios
-Electronic and electrical field
-Used for making electronic device casings, internal brackets, connectors, etc. In the production of computer motherboards, sockets made of anti-static POM can prevent static electricity from damaging the motherboard chips; In the shell material of electronic instruments, it can provide mechanical protection and prevent static electricity accumulation from interfering with the internal circuits of the instrument.
-Automation equipment and robotics field
-As a material for mechanical transmission components, such as conveyor belt accessories in automated production lines and joint bearings in robots. Due to its anti-static performance, it can prevent static electricity from adsorbing dust, which affects the accuracy and lifespan of the equipment. At the same time, its mechanical and wear resistance can meet the operational requirements of the equipment.
-Automotive industry field
-Applied in some components of automotive electronic systems, such as the housing of automotive sensors and some static sensitive parts of automotive interiors. It can prevent electronic failures caused by static electricity, and its mechanical properties can also adapt to the complex environment inside the car.
3. Precautions for use
-Storage environment
-It should be stored in a dry and ventilated environment, avoiding contact with strong acids, alkalis, and other chemical substances. Because a humid environment may affect its anti-static performance, and strong acids and alkalis can affect the material
