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Eastman Chemical Company is introducing TRĒVA, a versatile, cellulose-based thermoplastic said to combine high performance with sustainability.
“Eastman leveraged nearly 100 years of cellulosic expertise in the design and testing of TRĒVA to meet the improved sustainability profile and performance needs of brands, fabricators, moulders, and other companies across the value chain,” says Burt Capel, Vice President and General Manager of Eastman’s Speciality Plastics business unit.
TRĒVA’s composition is about half cellulose, sourced from trees derived from sustainably managed forests that are certified by the Forest Stewardship Council (FSC). The material is BPA-free and phthalate-free. It is said to deliver excellent flow rates, durability and dimensional stability, leading to less material usage, thinner parts, and longer product life, thus enhancing lifecycle assessments.
The product is also reported to offer excellent chemical resistance, standing up better than other engineering thermoplastics to some of the harshest chemicals, including skin oils, sunscreens and household cleaners.
The material’s low birefringence means the elimination of the unwelcome rainbow effect some plastics experience with polarised light, improving the user experience with electronic device screens and retail displays.
Excellent flow characteristics also enable design freedom, allowing TRĒVA to be used with complicated designs and in filling thin parts. Under recommended processing conditions, recent thin-wall 30 mil spiral flow testing shows that TRĒVA flow rates are significantly better than polycarbonate and polycarbonate/ABS blends, and comparable to ABS, Eastman reports.
The bioplastic is designed to allow for superior surface gloss, clarity and warm touch and feel. The material is also said to deliver great colour saturation, and superior secondary processing and decorating capability, creating additional design and branding options.
Applications for TRĒVA include:
Image provided by Eastman Chemical Company
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