Biopolymers
Wood Tubes Close-Up
Hollow tubing with a high loading of wood fiber is one of the newest products—and one of the trickiest—in the booming business of wood-filled thermoplastic extrusion.
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Family Lumber Business Turns To Plastics
Five years ago, Quality Wood Treating in Prairie Du Chien, Wis., was a 30-year-old family lumber business and one of the largest wood pressure-treaters in the country.
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NPE News Wrap-Up: Compounding
For nano-, long-glass, and wood composites, exhibitors presented new systems with four screws, tandem twin-screws, and twin-plus-single-screw combinations
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Plastics a Carpenter Could Love
Jim Rock has tried to put sawdust into plastics off and on for 20 years, long before wood composites became fashionable.
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Biodegradable Polyesters: Packaging Goes Green
The U.S. is catching up with Europe and Asia in exploring the potential of biodegradable polyesters in flexible and rigid packaging. Because of their cost, these resins often find use in blends with other degradable materials.
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Twin-Screws & Kneaders Pack More Muscle
This K show demonstrated the continuing evolution toward higher torque, screw speed, and throughput rates in twin-screw compounders. There were also new developments for reducing wear when processing filled compounds and new processes available for license to compound wood and paper fibers with plastics. There were even some improvements in backflushing screen changers.
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Foaming Expands Possibilities for Wood-Fiber Composites
Over a dozen processors already foam wood-fiber composites and an equal number are experimenting with it. Foaming with wood cuts resin cost and weight in half and brings design advantages. But it also requires particular know-how in materials formulation and extrusion hardware.
Read MoreDie Drawing Makes ‘Plastic Steel’From Wood-Filled PP
A developer of new plastics technologies is applying low-temperature die drawing to take advantage of a new raw material: expanded, oriented, wood-filled polypropylene (EOW-PP).
Read MoreGet a Stake in PVC Fencing
PVC fence markets are posting rapid gains, prompting profile extruders to install new machines by the dozens and convert existing plants from pipe and siding production. New players are jumping in, too including makers of wood-filled composites.
Read MoreWood-Fiber Adds Stiffness and Value To Tight-Tolerance Tubes
Hollow tubing with a high loading of wood fiber is one of the newest products—and one of the trickiest—in the booming business of wood-filled thermoplastic extrusion.
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