Experimental analysis for extrusion screw geometry to produce highly transparent polypropylene sheets.(Report): An article from: Polymer Engineering and Science
Book Details
PublisherSociety of Plastics Engineers, Inc.
ISBN / ASINB00398HSNM
ISBN-13978B00398HSN4
AvailabilityAvailable for download now
MarketplaceUnited States 🇺🇸
Description
This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on February 1, 2010. The length of the article is 3861 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available immediately after purchase. You can view it with any web browser.
From the author: The observation was experimentally conducted by using many screws with various geometries to obtain a highly transparent polypropylene melt resin sheet. The pressure distribution in the extruder, melt temperature profile across melt flow, the extruder throughput and the specific energy consumption were monitored. In a preliminary evaluation, transparent melt web was obtained in a simple straight channel depth screw and a straight channel depth screw with a torpedo type barrier section. The transparency of melted resin sheet was obtained by the screw geometry so that the specific energy consumption was small and the melted temperature was low. Based on these results and taking a wide applicability for a large size extruder of the production machine into consideration, the screw of gently tapered compression with a torpedo type barrier section was selected as the basic design of the screw geometry to satisfy both the transparency and the extrusion stability. The screw geometry optimization was conducted using the analysis of melting performance by the cooling experiment and the pressure pattern. As a result, the screw geometry to satisfy a low external haze and an extrusion stability under higher throughput conditions was designed. POLYM. ENG. SCI., 50:420-427, 2010. [C] 2009 Society of Plastics Engineers
Citation Details
Title: Experimental analysis for extrusion screw geometry to produce highly transparent polypropylene sheets.(Report)
Author: Akira Funaki
Publication:Polymer Engineering and Science (Magazine/Journal)
Date: February 1, 2010
Publisher: Society of Plastics Engineers, Inc.
Volume: 50 Issue: 2 Page: 420(8)
Article Type: Report
Distributed by Gale, a part of Cengage Learning
From the author: The observation was experimentally conducted by using many screws with various geometries to obtain a highly transparent polypropylene melt resin sheet. The pressure distribution in the extruder, melt temperature profile across melt flow, the extruder throughput and the specific energy consumption were monitored. In a preliminary evaluation, transparent melt web was obtained in a simple straight channel depth screw and a straight channel depth screw with a torpedo type barrier section. The transparency of melted resin sheet was obtained by the screw geometry so that the specific energy consumption was small and the melted temperature was low. Based on these results and taking a wide applicability for a large size extruder of the production machine into consideration, the screw of gently tapered compression with a torpedo type barrier section was selected as the basic design of the screw geometry to satisfy both the transparency and the extrusion stability. The screw geometry optimization was conducted using the analysis of melting performance by the cooling experiment and the pressure pattern. As a result, the screw geometry to satisfy a low external haze and an extrusion stability under higher throughput conditions was designed. POLYM. ENG. SCI., 50:420-427, 2010. [C] 2009 Society of Plastics Engineers
Citation Details
Title: Experimental analysis for extrusion screw geometry to produce highly transparent polypropylene sheets.(Report)
Author: Akira Funaki
Publication:Polymer Engineering and Science (Magazine/Journal)
Date: February 1, 2010
Publisher: Society of Plastics Engineers, Inc.
Volume: 50 Issue: 2 Page: 420(8)
Article Type: Report
Distributed by Gale, a part of Cengage Learning
