Eastman Chemical Company introduces its Treva bioplastics product. Its flow rates, durability and dimensional stability allow for less material usage, thinner parts, and longer product life, enhancing lifecycle assessments, the manufacturer claims.
Kingsport/USA — The product’s composition is about half cellulose, sourced from trees that are certified by the Forest Stewardship Council (FSC). The new material is BPA-free and phthalate-free. The new product is designed to allow for superior surface gloss, clarity and warm touch and feel, says Eastman, adding that the material also offered high color saturation, and good secondary processing and decorating capability, creating additional design and branding options.
“Eastman leveraged nearly 100 years of cellulosic expertise in the design and testing of Treva to meet the improved sustainability profile and performance needs of brands, fabricators, molders, and other companies across the value chain,” said Burt Capel, vice president and general manager of Eastman’s Specialty Plastics business unit. Capel formally introduced the innovation to media at the Chinaplas Plastics & Rubber Trade Fair taking place in Guangzhou, China.
Due to its chemical resistance, the material can withstand some of the harshest chemicals, including skin oils, sunscreens, and household cleaners. Unwanted rainbow effects are eliminated by the material's low birefringence, Eastman claims. Additionally, its flow characteristics would enable design freedom, allowing Treva to be used with complicated designs and in filling thin parts. The company adds, that the material's flow rates would be significantly better than polycarbonate and polycarbonate/ABS blends, and comparable to ABS.
Areas of application are eyeglass frames, wearable electronics, headphones, and many other personal devices that come in direct contact with the skin; Electronic display applications, such as lenses and covers, that consumers need to see through; Electronics, housings, intricate cosmetics cases, and other products with high design and complex specifications; Automotive interior components wherein chemical resistance and aesthetics are desired; and other applications with high sustainability and safety requirements.