Privately owned custom compounder Teknor Apex Co. has developed a melt-strength enhancer that it says will help companies achieve higher throughput when they process polylactic acid resins in clear cast film and sheet operations to produce takeout food-service clamshell packaging.
Pawtucket, R.I.-based Teknor Apex said the new Terraloy MB-90001A1 modifier, developed by its bioplastics division, can increase the pull force that can be applied to PLA by 300-500 percent — which they said will reduce scrap rates and lead to higher throughput in extrusion and thermoforming.
“Poor melt strength has limited productivity in the processing of standard PLA and prevented use of the resin in certain applications,” said Edwin Tam, manager of new strategic initiatives for bioplastics.
“Besides overcoming these obstacles, the new Terraloy masterbatch disperses more efficiently and uniformly in PLA than additives that come in powder form and does not affect the clarity of neat PLA.”
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