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
Novel Composite Materials for Demanding Automotive Applications
Steve Hardebeck, September 2006
PowerPoint Presentation at ACCE 2006.
New Developments in Powder Priming of SMC
Hamid Kia, September 2006
PowerPoint Presentation at ACCE 2006.
The SMC Consistency Program - A Technique for Data Driven Improvement of Product Quality
Dr. Mike Siwajek, September 2006
PowerPoint Presentation at ACCE 2006.
Beyond Polypropylene - LFRT Materials for Structural Conductive and Specialty Applications
Tim VanAst, September 2006
PowerPoint Presentation at ACCE 2006.
Pushtrusion™ New Direct Compounding Technology - Integrating New Technology with State-of-the-Art Production Systems
Eric Lee, September 2006
PowerPoint Presentation at ACCE 2006.
Advanced Integrated Door Systems - Providing Performance-Driven Solutions for Material Selection & Integration
Jason Lipke, September 2006
PowerPoint Presentation at ACCE 2006.
Press Technology for LFT-D Part Production
Manfred Br?mmer, September 2006
PowerPoint Presentation at ACCE 2006.
SMC Premium Class A Parts - Innovation in Process Technology
Frank Henning, September 2006
PowerPoint Presentation at ACCE 2006.
Material Selection for Front-End Carriers
Craig Dlugos, September 2006
PowerPoint Presentation at ACCE 2006.
Fiber Length Measurement in LFRT Materials: Using Automated Image Analysis
Jacqueline Ayotte, September 2006
PowerPoint Presentation at ACCE 2006.
Stabilisation of Polymer Matrix Polypropylene in LFT & New Directions
Paul Stassen, September 2006
PowerPoint Presentation at ACCE 2006.
Improving Productivity & Safety with Robotic Trimming
Paul Schuch, September 2006
PowerPoint Presentation at ACCE 2006.
Creep and Fatigue of Long Glass Reinforced Polypropylene Compounds
Peter Foss, September 2006
This paper details the creep and fatigue characteristics of several long glass reinforced polypropylene compounds that have been used in the development of a thermoplastic liftgate. Both the creep and fatigue data show stress levels associated with a composite part should be limited to 30 % of the failure strength at the maximum use temperature. Parts where there is considerable flow and orientation of these composites should limit stress levels in the cross-flow direction to less than 20 % of the failure strength in that direction.
Developing Polymer Nanocomposites for Automotive Applications
Patricia Tibbenham, September 2006
PowerPoint Presentation at ACCE 2006.
Nylon Nanocomposite (nanoSEAL™) for Improved Fuel Permeation Performance
Paul Kennedy, September 2006
PowerPoint Presentation at ACCE 2006.
Carbon Nanotubes: An Additive with Multifunctional Properties & Current Commercial Applications
Andrew Rich, September 2006
PowerPoint Presentation at ACCE 2006.
Advanced Laser Surface Analyzer
Francis Krantz, September 2006
The Advanced Laser Surface Analyzer (ALSA) is the result of continuing development of surface smoothness analysis utilizing reflected laser lines to evaluate the surface smoothness of a part of panel. With the aging of the LORIA surface analyzer system obsolescing the equiptment the need for a replacement using current technology was seen. The ALSA surface analyzer system uses a current computer diode laser solid state laser line control devices a Charge Coupled Device (CCD) for image capturing and a MS Windows style environment for the software creating improvements in resolution speed and ease of use. These improvements were achieved while maintaining an excellent correlation with the surface waviness numbers generated by the LORIA the current standard for measuring long term surface waviness. The Gage Repeatability and Reliability (GR&R) and Correlation studies to validate the system were run utilizing 12 panels and 3 operators. The long term surface waviness of the panels ranged from flat black glass to structurl SMC with a wide range of surface waviness in between. Orange Peel is another aspect of surface quality that can be measured by this system. The values calculated were bases on the area under the intensity curve of the line and were confirmed to correlate to a standard set of DuPoint orange peel standards. The DOI value has been recalculated using the slope of the intensity curve and the width of the line to correlate to a visual image analysis procedure. The new system will give DOI totally independent of the current system and not a function of orange peel. The new MS Windows style software is more user friendly than before and allow the creating and saving summary data from a series of panels.
Tough Low Mass SMC Development for Transportation Applications
Robert Seats, September 2006
The need for low mass composites in the transportation industry has intensified as OEMs have looked for ways to reduce vehicle weight in the face of rising oil prices increasing regulation and political unrest in the major oil producing countries. Low mass SMC is not a new concept and has been practiced in the industry for several years. However the limitations of traditional low mass technology have restricted its use to specific applications. The combination of properties to produce low mass Class A SMC without glass microspheres while maintaining the required mechanical and physical properties has not been available. With the introduction of tough SMC technologies in the last few years molders as well as OEMs are demanding this technology for future applications to benefit from the performance advantages they bring. This paper will report on recent developments in tough low mass Class A SMC that achieve aspecific gravity of 1.6 and are more robust to molding conditions and exhibit lower water absorption properties than previous developments. Technology and properties of tough low mass structural SMC with a specific gravity of 1.15 and 1.5 will also be discussed with emphasis on improved mechanical properties as compared to traditional low mass SMC.
FACTS™ A Flow Analysis Cure Time System" for Fiber Reinforced Thermoset Plastics"
Francis Krantz, September 2006
The continuing development of the new type of spiral flow tool for evaluation of reinforced thermoset resin systems has led to the use of an improved sensor for determining gel and cure times. The use of this sensor which monitors the impedance values during the cure cycle gives us a better understanding of the reactions that are occurring during the cure. This understanding will aid us in quantifying the dynamic reactions and interactions of the components of the composite materials during the compression molding process. The new spiral flow tool is designed as a compression mold equipped with a real-time data collection system for the dielectric (impedance) values during cure. Temperature and pressure data is also acquired from the mold in two locations during the cure cycle. The temperature and pressure sensors are located at the charge area and along the flow channel. The collected data provides an in- sight into the complex behavior of the material during molding allowing one to compare and contrast different materials. The development of additional software to analyze and display the data collected makes it easier to understand the data and the data easier to use to compare formulation changes. The utilization of the new sensor which is already being used in production molds gives a good correlate to the cure on the production floor. Real time collection of the pressure temperature and cure data of the composite material as it flows through the mold makes this laboratory tool an industry standard for development and quality control of compression molding compounds.
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