SPE Library

The SPE Library contains thousands of papers, presentations, journal briefs and recorded webinars from the best minds in the Plastics Industry. Spanning almost two decades, this collection of published research and development work in polymer science and plastics technology is a wealth of knowledge and information for anyone involved in plastics.

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Conference Proceedings
RESEARCH ON THE MICRO-EXTRUSION CHARACTERISTIC OF MINI-SCREW IN THE SCREW EXTRUDING SPRAY HEAD
Liu Bin Xie , Yi Huang Xingxing , Feng Yanhong, May 2008
Based on hydrodynamics and melt conveying theory, the micro-extrusion characteristics of mini-screw used in the screw extruding spray head of FDM were researched in detail in this paper. The research was about the relationship between extrusion production capacity and the main geometrical parameters of screw and barrel (the active length of screw, the diameter of screw, the helix angle, the width of screw arris, the depth of screw channel, the clearance between screw and barrel, etc), and the processing parameters such as screw speed, the pressure of nozzle. Theoretical analysis was performed to find out the quantitative relationships between production capacity of extrusion and main parameters (the screw speed, main geometrical size of screw, the clearance between screw and barrel, the pressure of nozzle, etc) were found out so that the theoretical guidance on the design of spray head with screw could be provided.
EVALUATION OF DISPERSION CHARACTERISTICS OF POLYMER-CLAY NANOCOMPOSITES BY X-RAY DIFFRACTION MEASUREMENT AND MICROSCOPY
W. Michaeli , U. Klemradt , A. Elas , K. Berdel , D. Carmele, May 2008
Although polymer-clay nanocomposites have been investigated for a long time there are only few publications on the characterisation of the state of dispersion of clay in polymers. X-ray diffraction (XRD) measurements and microscopy are usually applied. However results of both can easily be misinterpreted. Nanocomposites of clay and polypropylene are prepared. The state of dispersion is analysed by XRD optical and electron microscopy. XRD measurements show the effect of sample preparation and geometry and clay orientation on the results. Sample preparation also affects the results of microscopic analyses. These effects have to be considered when nanocomposites are analysed.
EVALUATION OF DISPERSION CHARACTERISTICS OF POLYMER-CLAY NANOCOMPOSITES BY X-RAY DIFFRACTION MEASUREMENT AND MICROSCOPY
W. Michaeli , U. Klemradt , A. Elas , K. Berdel , D. Carmele, May 2008
Although polymer-clay nanocomposites have been investigated for a long time, there are only few publications on the characterisation of the state of dispersion of clay in polymers. X-ray diffraction (XRD) measurements and microscopy are usually applied. However, results of both can easily be misinterpreted.Nanocomposites of clay and polypropylene are prepared. The state of dispersion is analysed by XRD, optical and electron microscopy. XRD measurements show the effect of sample preparation and geometry, and clay orientation on the results. Sample preparation also affects the results of microscopic analyses. These effects have to be considered when nanocomposites are analysed.
MEASURING DISTINCTNESS OF IMAGE OF HIGH GLOSS SURFACES
Dieter P. Gruber , Michael Buder-Stroisznigg , Gernot Wallner , Bernhard Strauß , Lothar Jandel, May 2008
Human eye-apparatus notices varying distinctness of image (DOI) of glossy surfaces very accurately. Therefore high resolving measuring techniques are required. This paper aims on presenting the Intensity Profile Analysis (IPA), a novel methodology for the measurement of distinctness of surface reflected images. IPA enables measuring fine detail reproduction of glossy surfaces with good correlation to standard DOI measurements while featuring considerably enhanced preciseness. IPA is a non-contact technique and therefore applicable for uncured or hot surfaces.
FEASIBILITY STUDY OF THE USE OF DDGS PLASTIC COMPOSITES
David Grewell , Gowrishankar Srinivasan , Maria Baboi, May 2008
Recently, an increase in the demand for ethanol as a fuel additive has resulted in a dramatic increase in its coproducts namely distiller’s dried grains with solubles (DDGS). This work studied a composite of DDGS and conventional petrochemical plastics (polyvinyl chloride) for applications in windows construction. The goal was to characterize the composite and its processibility for “green” plastics. The experiments showed that DDGS can be effectively extruded with PVC; at low filler levels (5- 10%) of DDGs strengthening of the PVC was seen. However, higher filler levels (>10%) of DDGS degraded the mechanical properties of PVC/DDGS composites. Also, ground DDGS perform better as reinforcement agents compared to standard DDGS. Caustic pretreatment was also studied and it was found not to effect the mechanical properties significantly. Also, the addition of PVA had little effect on the properties of the composite.
TRANSFER OF TEMPLATE PATTERNED CARBON NANOTUBES TO A POLYMER SURFACE USING THE THERMOFORMING PROCESS
Arun Kumar , Ming Wei , Carol M. F. Barry , Stephen Orroth , Ahmed Busnaina , Joey Mead, May 2008
Carbon nanotubes (CNT’s) are of interest because of their high thermal, mechanical, and electrical properties. They are often combined with polymers to enhance the properties; however, it would be useful for a number of applications to incorporate the CNT’s in a patterned structure. In this work we investigate approaches to pattern the carbon nanotubes and transfer this pattern to a polymer substrate using thermoforming, a commercially relevant process. We have used electrophoretic deposition of multi-wall carbon nanotubes (MWCNT) onto the circuits followed by transfer to a polyurethane film by thermoforming. The electronic circuit had a copper (Cu) wire with a width of 55 &m. MWCNT’s were deposited onto the copper wires using the electrophoresis method with direct current (DC) voltage. A novel mold design for the thermoforming process was developed, which has a removable insert to keep the patterned MWCNT circuit inside the mold. The thermoforming process parameters (temperature (heating time), forming time and vacuum) were optimized to obtain transfer of the patterned MWCNT’s to the polyurethane surface
Dashboard for Smart Model 451 for Two
Carl-Heinz Fahnster, September 2007
PowerPoint Presentation at ACCE 2007.
Renewable Bio-Composites for Automotive Applications
Angela Harris, September 2007
PowerPoint Presentation at ACCE 2007.
Delta PT: A Superior Thread-Former for Plastics
Joe Gobernatz, September 2007
PowerPoint Presentation at ACCE 2007.
Accelerated Thermo Molecular Adhesion Process (ATmaP) - An Advanced Surface Treatment Technology
Russell Brynolf, September 2007
PowerPoint Presentation at ACCE 2007.
Nickel Vapor Deposition Shell Tooling Applications
Rob Sheppard, September 2007
PowerPoint Presentation at ACCE 2007.
Fabrication and Characterization of Neat and Nanophased Polyurethane Foam
Yuanxin Zhou, September 2007
In this study 1wt% carbon nanofiber (CNF) and TiO2 nanoparticles have been infused in part A of polyurethane (PUR) foam by ultrasound sonication then mixed with part B of PUR foam by mechanical stirrer. Tensile flexural and compression tests were performed to evaluate mechanical performance of neat and nanophased PUR foams. Experimental results show that CNF reinforced PUR foam exhibit the highest tensile strength flexural strength and compression strength as compared with other PUR Foams.
Nanocomposites for Automotive Applications
Péter Krüger, September 2007
PowerPoint Presentation at ACCE 2007.
Carbon Nanotubes: New Markets & Developing Applications
Andy Rich, September 2007
PowerPoint Presentation at ACCE 2007.
Advanced Composite Polymer for Automotive - Long Glass Fiber Linear Polyphenylene Sulfide
Walt Maruszczak, September 2007
PowerPoint Presentation at ACCE 2007.
New Composite Material for Automotive Industry: Long Glass Fiber Thermoplastic Polyacetal (LFT-POM)
VinÍcius Fernando Mardegan, September 2007
PowerPoint Presentation at ACCE 2007.
Electrically Conductive Acetals for Fuel Environments
Jeremy Klug, September 2007
PowerPoint Presentation at ACCE 2007.
FEM DaimlerChrysler S-Class Coupe in GMTex
Karl-Heinz Kalmbach, September 2007
PowerPoint Presentation at ACCE 2007.
Direct In-Line Compounding for GMT Applications
Stephen Bowen, September 2007
Long Fiber Reinforced Thermoplastic (LFRT) materials offer superior impact strength and stiffness compared to raditional short fiber reinforced materials. For several decades these specialized compounds have grown in volume and diversity. Initially introduced as LFT (Long Fiber Thermoplastic) pellets the compounds have evolved into D-LFT (Direct Long Fiber Thermoplastics) variants and expanded their process capability to include injection compression and transfer molding.


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Brown, H. L. and Jones, D. H. 2016, May.
"Insert title of paper here in quotes,"
ANTEC 2016 - Indianapolis, Indiana, USA May 23-25, 2016. [On-line].
Society of Plastics Engineers
Available: www.4spe.org.

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