Thermosets Plastics for Electrical Components
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Why are thermosets commonly used in injection molding applications for electrical parts and components? Thermosets exude exceptional electrical stability, high dielectric strength, and resistance to arc and track to protect electrical products and internal components from electrical charge. Parts including circuit breakers, terminal blocks, and electrical connectors are molded from thermoset materials to ensure product safety. Whereas a thermoplastic can degrade, disfigure, or ignite; thermosets such as unsaturated polyester BMC and phenolic molding compounds remain durable and strong when exposed to such electrical elements. (more…)
Thermoset vs Thermoplastic Injection Molding
Comments Off on Thermoset vs Thermoplastic Injection MoldingThermoset and thermoplastic materials are two types of plastic molding materials. Each type of material can be injection molded, however the injection molding process differs between each type of resin. While injection molded parts from both thermoset and thermoplastic may have similar aesthetics, the two material types can exude drastically different material performance properties. Thermosets are a material of choice for rugged, industrial type applications requiring high heat resistance or exceptional electrical properties to avoid damage from electrical current. Choosing the correct molding material type depends on the end use application and what material property requirements the end-product needs to withstand to function properly and ensure safety. While thermoplastic materials are more commonly used, product applications requiring further material performance in the areas of electrical strength, heat resistance, and chemical resistance are likely to rely on thermosets as the molding material of choice. (more…)
