The new Bioplastics Div. of Teknor Apex Co., Pawtucket, R.I., has expanded its brand-new line of Terraloy compounds with a blend of HIPS and up to 30% thermoplastic starch (TPS). Introduced last June at NPE 2009, Terraloy is based on technology licensed from Cerestech Inc., Montreal. Terraloy HIPS/TPS blends now join blends of TPS with PP, LLDPE, or biodegradable (but petrochemical-based) polyester.
Terraloy BP-18003A (HIPS/TPS) is not biodegradable but offers the ability to incorporate renewable content in HIPS products, while maintaining typical HIPS properties. This is said to be the first PS/starch blend that can substitute completely for HIPS in many applications, without the dramatic loss of properties seen in previous blends, in which starch acted only as a filler. Teknor says no change in tooling is needed to switch from HIPS to BP-18003A.
Here are some properties:
Density 1.10 g/cc
MFR 10.3 g/10 min
Tensile modulus 255,300 psi
Tensile str., max. 2522 psi
Elongation @ break 17%
Flexural modulus 220,159 psi
Notched Izod impact 1.9 ft-lb/in.
Teknor also offers Terraloy MB-
18003A, a HIPS masterbatch with up to 50% TPS. It should be let down 1:1.
(401) 725-8000 • teknorapex.com
Teknor Apex Co.
505 Central Ave. Pawtucket, RI 02861
Phone (401) 725-8000 Fax (401) 729-0166