Extrusion
LCPs Break New Ground in Film Coextrusion and Thermoforming
Liquid-crystal polymer extrusion resins cost over $10/lb, but when used sparingly in 2-5 micron layers, they can be cost-effective in barrier packaging films.
Read MoreCan Your Sheet Lines Meet New ANSI Safety Standards?
The new standard relates to the design and use of the take-off equipment. Its biggest impact will be to require older sheet roll stacks to be extensively rebuilt or replaced in order to meet new emergency nip-opening requirements.
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 MoreMedical Tubing Coextrusion Brings A New Level of Care
Coextrusion is on the increase in tubing for medical uses, with more layers, more exotic materials, and much thinner walls. These require unprecedented levels of dimensional accuracy and flaw detection.
Read MorePolystyrene Blown Film Starts to Get Some Respect
It has kept a low profile for the last 40 years, but more blown-film processors are starting to take a look at PS for breathable packaging and cellophane replacements. A couple of dozen processors worldwide have kept this technology quietly to themselves—but not for much longer.
Read MoreTwo More LLDPE Families for High-Performance Blown Film
Two new families of “enhanced” hexene-copolymer LLDPE resins for blown film are said to offer excellent impact resistance and outstanding hot-tack and heat-seal properties. One resin family reportedly can replace high-end octene LLDPE while the other is said to equal or surpass the performance of VLDPE or metallocene LLDPE (mLLDPE).
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 MoreUnderstanding Grooved Feed
U.S. processors still have some catching up to do when it comes to getting the most out of grooved-feed extruders. But decades of European experience offer lessons on how to use grooved feeds to run even resins like TPU, nylon, and PET.
Read MoreThe New Look in Plastic -- It's Paper!
Synthetic paper based on filled polyethylene or polypropylene film has been around for decades without causing much excitement--until recently.
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 911爆料网 of wood-filled thermoplastic extrusion.
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