Compounding

Carbon Nanotubes Improve In Properties, Purity and Price

ew suppliers and manufacturing technologies continue to emerge in the burgeoning field of carbon nanofibers (CNFs) and single-walled carbon nanotubes (SWCNTs). Recent news includes North American availability of CNFs from Austria’s Electrovac Group.

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New Resins and Modifiers for Extruded Profiles

Among new developments discussed at the Profiles 2007 conference in Charlotte, N.C., were high-melt-strength polyolefin elastomers for use as ingredients in TPO compounds that can compete with TPVs and flexible PVC.

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New Additives and Colorants To Debut at K 2007

The world’s largest plastics show next month in Dusseldorf will highlight an unusual mix of new polymer additives, including some based on novel chemistries that reportedly set new levels of performance.

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What's New at the Show in COMPOUNDING

Compounding machinery news at the K Show next month focuses on more torque, more output, and sometimes both, for kneaders, mixers, and twin-screw extruders.

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Recycling E-Plastics New Material Stream Brings Its Own Set of Problems

Brominated flame retardants restrict its use. Most now goes to China, but new recycling processes promise to ‘clean up’ e-waste.

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Carbon Nanotubes Lots of Potential--If the Price is Right

With capacity scale-ups driving prices down, the pace has picked up for commerical applications that boost electrical and thermal conductivity, structural strength, and thermal stability.

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Metallic-Pigmented TPO Debuts in Auto Exterior Trim

A molded-in-color, high-gloss, metallic-pigmented TPO wheel flare is making its commercial appearance next month with the launch of the 2008 F-250 Super Duty pick-up truck from the Ford Motor Co.

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Hollow Glass Microspheres Stronger Spheres Tackle Injection Molding

Looking for a way to make lighter parts without giving up properties? New hollow microspheres are stronger than ever—enough to withstand the rigors of injection molding.

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Recyclers Now Targeting Higher-Value Engineered Resins

Recycling news from the Society of Plastics Engineers’ Global Plastics Environmental Conference (GPEC) in Orlando, Fla., in March focused on PET, nylon, and waste plastics in electronics—in other words, mainly on higher value engineered resins rather than commodities.Carpet recycling claimed two of the show’s big environmental awards.

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First Direct Extrusion of Complex WPC Window Profiles

Wood-plastic composite (WPC) profiles are made by two main approaches.

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Process Cooling
Plastics Size Reduction