Modified PLA - RTP Co.

July 1, 2011
The compounds have 10 to 40% glass-fiber reinforcement.

The glass-fiber-reinforced polylactic acid (PLA) biopolymers have greater strength, stiffness, and thermal performance than unmodified PLA. The compounds are fully colorable and have 10% to 40% glass fiber.
The 30% glass-fiber-reinforced PLA grade has tensile strength of 16.5 ksi, nearly twice that of unmodified PLA. Flexural modulus is 1,630 ksi and heat deflection temperature (HDT) is 320°F at 66 psi, 200°F above that of the unmodified version.
Proprietary nucleation packages speed crystallization for quicker part ejection, so  injection-molding cycle time is similar to that of PP and ABS.

RTP Co., 580 East Front St., Winona, MN 55987, (507) 454-6900,

About the Author

Jessica Shapiro

Jessica serves as Associate Editor - 3 years service, M.S. Mechanical Engineering, Drexel University.

Work experience: Materials engineer, The Boeing Company; Primary editor for mechanical and fastening & joining.

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