Epoxy resins are incredibly versatile and functional, making them essential in various industries. They are used in adhesives, coatings and are critical in many applications. Let’s quickly look into the world of epoxy resins and explore their significant impact on diverse sectors.
Epoxy resins, commonly used in various applications, are typically produced through a chemical reaction between epichlorohydrin (ECH) and bisphenol-A (BPA). This reaction results in speciality resins in either liquid or solid form. The production processes for liquid and solid epoxy resins are similar. Initially, ECH and BPA are combined in a reactor, and a solution containing 20-40% caustic soda is added as the mixture is heated to its boiling point.
After the unreacted ECH evaporates, the resulting mixture is separated into two phases by introducing an inert solvent like Methyl isobutyl ketone (MIBK). Subsequently, the resin is washed with water, and the solvent is removed through vacuum distillation.
Producers incorporate certain additives tailored to the intended application to impart specific properties such as flexibility, viscosity, colour, adhesiveness, and faster curing to the resin.
To transform epoxy resins into a hard, infusible, and rigid material, they must be cured with a hardener. The curing process can occur at a wide range of temperatures, typically between 5 and 150 degrees Celsius, depending on the choice of curing agent. Primary and secondary amines are commonly utilised as curing agents for epoxy resins.
How is it used
Epoxy resins are incredibly versatile and find extensive use across many industries.
- In the adhesive industry, epoxy resins provide exceptional bonding properties, making them indispensable for various applications.
- They also play a crucial role in the coatings industry, where epoxy-based coatings offer superior protection, durability, and corrosion resistance, meeting the stringent requirements of sectors such as automotive, aerospace, and construction.
- In the electronics sector, epoxy resins are employed for encapsulating electronic components, circuit boards, and insulating materials.
- Within the construction field, epoxy resins are utilised for flooring, waterproofing, and concrete repair due to their remarkable strength and chemical resistance.
The aerospace industry uses epoxy resin in many innovative ways, including spacecraft hardware fabrication, space suit reinforcement, and improving flame retardancy. This thermosetting polymer’s combined adaptivity and flexibility make it ideal for use in many space travel solutions. They are also used in spacecraft for staking, sealing, coating, encapsulating, potting, and bonding various structural, electronic, and mechanical components.
They also play a vital role in water resistance and structural integrity in the marine industry. At the same time, the automotive and aerospace sectors rely on them for lightweight composites, adhesives, and coatings that enhance performance and safety.
These are just a few examples of how it contribute to various industries, showcasing their versatility and exceptional properties.
How can Redox help
Redox sells and stores epoxy resin products in various countries, including Australia, the United States, New Zealand, and Malaysia.
Discover how Redox can empower your organisation and unlock the full potential of your sourcing capabilities. Contact us now and experience the advantage that Redox brings.