This includes the introduction of two specific grades of DuPont™ Rynite® PET for photovoltaic applications. The objective behind DuPont Performance Polymer solutions for the photovoltaic industry is to reduce the total cost of manufacturing, assembling and installing photovoltaic systems. By doing so, it is helping the photovoltaic industry reach grid parity faster.
Drawn from its portfolio of high-performance polymers, UV-resistant DuPont™ Rynite® PET resins offer an excellent balance of properties which makes them an ideal candidate for the cost-effective manufacturing of photovoltaic module frames and components. Two specific grades are currently available from DuPont for these applications: Rynite® 935SUV is a 35% glass-fiber/mineral reinforced, UV stabilized grade of polyethylene terephtalate (PET) suitable for injection molding; Rynite® 540SUV is a 40% glass-fiber reinforced, UV stabilized grade of PET suitable for extrusion and injection molding. Both grades combine high stiffness with low warpage and have been specifically developed for long-term outdoor applications. Other DuPont engineering polymers for the photovoltaic sector include flame-retardant DuPont™ Zytel® nylon for junction boxes and inverters, and low-wear/low-friction DuPont™ Delrin® acetal resin for bearings used in sun-tracking mirror installations, for example.
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