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
Processing Novel Braided Preforms of Carbon & PPS Thermoplastic Tape for Aviation & Automotive Seat Frames
PowerPoint Presentation at Automotive Composites Conference and Exhibition
Multi-Axial Assessment Method for Fatigue Calculations in Composite Components
Multiaxial assessment methods have proved to be a useful tool in the fatigue analysis of metallic components. Fatigue analysis of composites presents additional challenges due to the anisotropy and non-homogeneity of the materials. This presentation considers how multiaxial assessment methods may be extended and applied for fatigue analysis of fibre- reinforced composite materials.
Advancing structural capability of injection molded components with Continuous Fiber Reinforcement
This presentation provides a state-of-the-art overview on continuous fiber reinforcement laminates and tapes as overmolded inserts for enhancing structural capability of injection molded polyamide. The talk will highlight the design and manufacturing development of the world’s first seat pan made from a thermoplastic laminate with continuous fiber reinforcement.
High Density Polyethylene-Exfoliated Graphene Nanoplatelet Nanocomposites for Automotive Fuel Line and Fuel Tanks Applications
The potential of exfoliated graphene nanoplatelets (GnP) to increase the barrier properties of high-density polyethylene (HDPE) to oxygen and fuel was assessed. The mechanical properties (tensile flexural impact resistance) thermal stability and electro-conductivity of GnP-HDPE composites were studied as well. Those properties were related to the properties of the platelets (size aspect ratio) and the quality of their dispersion in the HDPE matrix
The Effects of Injection Molding Process Parameters on Final Fiber Length of a Short-Fiber Composite
Structural Thermoplastic Composites (STPC)
Continuous glass fiber-reinforced structural thermoplastic composites can be made with reactive resin systems using structural molding process such as resin transfer molding. By tailoring glass sizing chemistry composite properties can be improved significantly through maximizing the bonding between reinforcing fiber and resin matrix .
A FORMULATION STUDY OF LONG FIBER THERMOPLASTIC POLYPROPYLENE (PART3): MECHANICAL PROPERTIES OF PP DLFT COMPOSITES
PowerPoint Presentation at Automotive Composites Conference and Exhibition
Industrial Preformers for CFRP
Glass carbon aramid and natural fibers of every type and consistency can be successfully handled and precisely placed in large or small molds and formed into a preform in dozens of different applications. In each application the preform is then placed into a mold for the application/ injection of a thermoset resin to complete a composite part. The production equipment required to ensure a fast cycle time and a high quality part is described along with important considerations for the equipment.
Sustainable by Design: Introducing Recyclable Epoxy Hardener Technology
Thermosetting plastics used today are not recyclable simply because they were never designed to be in the first place. However there is nothing inherent about the design of the plastics that precludes them from being re-designed to be recyclable/reusable materials. A general overview of recyclable epoxy technology is presented including the underlying chemical principles that enable recyclable epoxy and recyclable carbon fiber composites.
Tailored Fiber Placement Technologies for Composite Applications
New software design tools and scaleable production technology allows automated tailored fiber placement (TFP) to be used for high-volume preform production. Tailoring the fiber orientation and fiber placement/distribution within the part enables better utilization of the fiber strength and therefore improves performance of the part. Various application examples and preform designs will be presented along with resulting benefits.
Nylon 66 Continuous Fiber Thermoplastics Composite – Evaluation of Processing Techniques for Optimal Performance
After evaluating mechanical properties of thermoplastics composite laminates constructed from unidirectional tape of nylon 66 / glass fiber system the author will present findings in preparing prepregs including the key factors that affect laminate quality and productivity such as resin weight glass size and “knottability” and “spreadability” of tow. Also discussed will be considerations in using these properties for a composite product design and pros and cons of two compression molding methods.
Screening of Natural Lightweight Fillers for Sheet Moulding Compound in North America
This presentation focuses on fillers that could be used for lightweight sheet moulding compound (SMC) applications. In particular a focus on the density of the particles will be made as well as the ecological factor of the use of by-products from biomass. Preliminary testing has been made on the processing of local (Ontario Canada) derived agricultural by-products to see if biomass in different forms could potentially be a suitable substitute for glass bubbles in low-mass SMC formulations.
Two-Component Polyurethane Adhesives having Novel Properties
PowerPoint Presentation at Automotive Composites Conference and Exhibition
PART B: Thermal and Rheological Design of Thermoset Molds
Modeling the behavior of short-fiber reinforced thermosets during the molding process remains one of the most difficult challenges for successful thermoset part design. This presentation covers examples of thermoset molding best practices and explains how advanced simulation techniques can help predict flow behavior and overcome issues frequently encountered with short-fiber thermoset molding. Factors considered include part geometry thermodynamics molding pressures and fiber orientation.
Integrated Anisotropic Simulation for Components Made from Glass Fiber Reinforced Thermoplastics
Accurately analyzing and predicting the mechanical behavior of components made from fiber-reinforced thermoplastics is complex because the fibers are individually oriented during injection molding. Finite-element analysis often uses isotropic material models. Results can be improved if local fiber orientations are considered with anisotropic material properties. This analysis process and a practical application are presented.
Orientational Order Induced by Carbon Fiber in Aromatic Thermosetting Copolyester Matrix
This presentation describes a new class of resin aromatic thermosetting copolyester (ATSP) which shows high temperature stability flame resistance and adhesive properties. Carbon fiber helps in stabilizing the nemetic phase in the liquid crystalline melt. The morphology of novel aromatic thermosetting copolyester in the presence of carbon fibers will be described and the presence of crystallinity which helps in improving the fracture toughness of these structures will be discussed.
Light Strong and Economical—Epoxy Fiber-Reinforced Structures for Automotive Mass Production
A family of new epoxy resin systems will be introduced that meet the requirements of automotive production and performance. Also an outlook will be given about what one can expect from a dedicated development partner and supplier.
Study on the Fiber Properties of a LFT Strand
A novel algorithm to measure fiber-length distribution was implemented. The fiber-orientation distribution within a long- fiber thermplastic (LFT) charge was measured using micro- computerized tomography (?-CT). Using a 3D numerical- simulation package Moldex3D the influence of the initial fiber orientation within an LFT strand was evaluated.
Recent Thermoplastic Composites for Automotive Applications
PowerPoint Presentation at Automotive Composites Conference and Exhibition
EXPANDING DESIGN OPTIONS FOR LONG FIBER THERMOPLASTIC COMPOSITES
A methodology for the rapid adoption of long-fiber thermoplastic (LFT) composites in the industry is outlined. Examples of recent metal-to-composite conversions are given to illustrate the innovation process.
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