PT ZONE: Film Extrusion
Looking into Photovoltaic Film? Here Are Material & Die-Design InsightsThe market for high-tech film or sheet used in solar modules represents a considerable opportunity for specialty extrusion processors looking to expand into high-end industries and capitalize on the global shift toward alternative energy. More (+)
Cut Material Waste With Accurate Gauge MeasurementGauge control done right can save you big money on materials and improve quality to boot. More (+)
MOST RECENT CONTENT: Film Extrusion
Study May Boost Prospects For Single-Screw ‘Elongator’
12/27/2011Plastics Technology
Dow Chemical Co., Midland, Mich., weighed in at last year’s SPE ANTEC with a paper discussing results of experiments they conducted on a novel elongational mixing device developed by Randcastle Extrusion Systems
Here Comes the Sun...To FIlm Processing12/27/2011Plastics Technology
Toray Plastics (America), Inc., last year completed the construction of a $2 million, 44-kW solar photovoltaic (PV) farm on its 70-acre campus in North Kingstown, R.I.
On Site: Where Art, Science, And Customer Focus Meet11/28/2011Plastics Technology
Business strategy at Danafilms involves a mix of art and science in blending resins, designing layer structures, and operating flexibility for both short and long runs.
Add a Layer of COC to Boost Polyolefin Film Properties10/25/2011Plastics Technology
As a discrete layer in coextruded polyolefin film, cyclic olefin copolymer provides higher modulus, greater heat resistance, improved thermoformability, and increased barrier
New Die Opens Up New Markets8/23/2011Plastics Technology
General Plastic Extrusions Corp. found that out recently in converting a second-hand blown film line that had been used by its previous owner for R&D.
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OVERVIEW:
Film Extrusion
Film is divided into two subcategories: cast, or flat film; and blown film. In the former, hot plastic is extruded through a flat, slit die onto a polished chill roll where it is quenched, pulled to a second set of rolls to cool the other side, then wound. In blown film, plastic is extruded into a cylindrical die, then inflated to form a bubble, which is ultimately cooled and collapsed. Films can be either single or multi-layer. Most are based on polyethylene. Bags are one primary example of film extrusions.
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Watch video, download datasheets and more in the Plastics Conveying Knowledge Center.
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Novatec shares their knowledge of dryers and drying techniques.
» Sheet Extrusion
Gain a basic understanding of sheet extrusion, the materials extruded, structures produced and the best techniques employed in the industry.
Product Announcements
- EXTRUSION: New Source for Blown Film Systems
- American Kuhne Inc. 2/1/2012
- EXTRUSION: IBC System Reacts Fast, Saves Resin
- Addex Inc., USA 2/1/2012
- EXTRUSION: Blown Film Air Coolers
- Mokon 9/29/2011
- EXTRUSION: Entry-Level, Fixed-Point Web Gauging
- NDC Infrared Engineering Inc. 7/27/2011
- ADDITIVES: Release Agent, Lubricant for PET
- Chem-Trend LP 5/31/2011
