What are Thermosets?
Plastics are divided in two general categories, thermoplastics and thermosets.
Thermoplastics plastics or composites are plastics capable of being repeatedly softened by heat and hardened by cooling. These materials will repeatedly soften when heated and harden when cooled.
Thermosets plastics or composites are materials that will undergo or have undergone a chemical reaction through the application of heat and pressure, catalysts, ultraviolet light, etc., leading to a relatively infusible state.
Why Use Thermosets?
Thermoset molding composites are specially formulated to provide a balance of high thermal resistance, dimensional stability, chemical resistance, strength, and electrical properties.
TYPICAL APPLICATIONS
Electrical
Some of the most demanding electrical
applications choose phenolic material, from switches to circuit breakers to high
voltage insulators. A balance of excellent electrical properties supports this
choice, including high dielectric strength, superior insulation resistance and
high temperature resistance. Typical applications include: circuit breakers,
switches, electrical connectors, commutators, solenoid caps, alternator slip
rings, and motor and gear housings.
Appliance
Thanks to their superior tolerance for heat and moisture, combined with good thermal and electrical insulating properties, phenolic composites are preferred materials for use in small appliances. Appliance applications include knobs, handles and heated components for toaster, broilers, steam irons, as well as thermostats, motor housings, and timer cases.
Automotive
Reliable performance in tough conditions
and high temperatures. Those characteristics have helped make phenolics a
desirable material for automotive applications, where they offer performance
benefits, ease of processing, and cost advantages. Thermal and dimensional
stability are key design properties for the automotive industry.
Lightweight phenolics are resistant to automotive fluids and chemicals.
Automotive applications include disc brake pistons, pulleys, water pump
housings, solenoids, ashtrays, motor housings and transmission components.
THERMOSET / PHENOLIC MATERIAL SUPPLIERS
These are some of the worldwide Phenolic and Melamine suppliers Ashton uses for our thermoset and thermoplastics processes.
Plastics Engineering (PLENCO) - Sheboygan, WI
Durez Corporation - Dallas, TX
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· Xenia, Ohio 45385
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Ashton Plastics 937-672-9300)
