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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Failure proof you process improvement ERP initiatives:Latest ERP Industry Stats. Major Failures by Root Cause. Part of the Puzzle consistently missing.Best Expert Advice based on 25 Years of Repetitive Occurrences to Consider:Common Flawed Evaluation Process Keys to Success – Operational Workflow Process OptimizationThe ERP Fail Safe Checklist
An optical metrology method is presented for determining stresses in thin solids.
Increasingly, overmolding is being used to enhance the functionality of a product. This presentation outlines several case studies highlighting Teknor Apex’s unique Thermoplastic Elastomer (TPE) solutions for overmolding applications, where properties beyond good adhesion and haptics, are required.
Wittmann Battenfeld continues to refine Micro Molding with the introduction of a true Two Component Micro Molding machine.Machine features to be presented will be basic two shot intro, tooling applications, material selections and after molding solutions that will show the latest Scara robot that accompanies this machine.Part examples and case studies can be presented.This machine is based on the proven design of the MicroPower machine with refinements to incorporate two shot molding.Visual demonstrations of this progression will be included in our presentation.
Chameleon is an unique Monte Carlo based software tool.
XPS converters are at the limit of being able to further lightweight foodservice packaging and food packaging containers without sacrificing performance.Total has developed a new grade of high heat crystal polystyrene that allows converters to lightweight their packaging applications without sacrificing performance or processing.
Developing high-temperature polyamides to resist prolonged heat stress, while maintaining aesthetic properties and ease of processing.
A new generation of non-Erdmenger mixing geometries has been developed for the multi-screw Ring Extruder which is based on twelve co-rotating and intermeshing screws to produce elongational flow for improved dispersive mixing. This paper will introduce these new element designs and their implementation on twin-screw compounding extruders.
Advanced extrusion control. Helping deliver and efficient and secure process while maintaining high standards of production quality and ease cybersecurity worries.
Presents the new and different design elements and features of the new extruder offered by US Extruders
This paper will examine:-Key inter-TPE competitions and how they are changing-The impacts of commoditization and globalization of the TPE marketplace-Supply chain shifts affecting TPEs-Important new TPE/fabrication couples, their impact on the marketplaceand strategies for competing in new TPE sectors including sensing, smart applications, vehicle electrification
This paper describes the fabrication and application of auxetic foam sensor using silver nanowire as the sensing element.
This paper discusses the fabrication and characterization of a hybrid piezoelectric foams that exhibit high thermal stability whiling maintaining good flexibility.
This study investigates the crystallization behaviors of polylactic-acid (PLA) under various CO2 pressures using a high-pressure differential scanning calorimeter and a novel custom-made sliding plate chamber. Results showed that the PLA crystallization growth rate and nucleation density for the PLA/pressurized CO2 system present a peak at the pressure of 3 MPa. Furthermore, PLA’s melting and crystallization temperatures were depressed when subjected to localized shear stress and CO2 pressures.
Korea Engineering Plastics (KEP) expands its already robust line of technical polymers with the introduction of Kepital® H100, a new polyacetal homopolymer. Already a leading producer of polyacetal (POM) copolymers, KEP recognized the need for innovation in the homopolymer category. This is especially important since it has been nearly two decades since the industry last expanded homopolymer capacity. A global solutions provider focused on innovation, KEP is eager to serve those customers looking for best-in-class polyacetal homopolymers.
The high melt flow of polyesters allows the molding of small, intricate parts. PBT has grown well in past years in the electrical/electronics market. There is a trend towards thinner wall connectors to fully utilize space on printed circuit boards and as new designs have emerged for computers and telecommunication devices. While still maintaining heat and mechanical performance of the application.
This study examines the influence that modifying the chemical structure of poly(lactic acid) can have on improving the mechanical properties of a 3-D printed part. A multi-functional chain extender was used to change the polyester such that its rheological response resembled an increasingly branched polymer chain. The modified polyesters were printed into two-layer rectangular specimens and subsequently analyzed for tensile properties as well as adhesive strength by 180 degree peel testing. With increasing chain extender content, the printed specimen exhibited increased toughness and tensile strength, along with greater adhesive strength. The more highly branched, the greater interlayer adhesion as polymer chains diffusion and entangle across the interface.
Additive Manufacturing (AM) is a fast emerging disruptive technology that has potential to redefine the conventional manufacturing processes and supply chain management globally in the future. The fundamental principle of this technology is to build the three dimensional objects directly from the 3D computer models in a layer-by-layer additive manufacturing process. This technology can be used to create prototypes, functional parts, tools and to produce production end user parts in plastic and metal materials.This technical paper will discuss the potential of AM technologies for polymer processing industry and the new space it provides for innovative thinking in plastic application development and the related tooling. At SABIC, metal tools have been 3D printed for cavities and cores with innovative conformal cooling designs. This has helped in improving the efficiency of injection molding process and thus reduced the cycle time. By going a step, further additive tooling was also integrated with heat & cool processing technology to achieve thin-wall molding and better quality parts. We will highlight the benefits of 3D printed tooling in achieving efficient injection molding process with an example case study.
Multi material additive manufacturing allows the combination of different optical, haptic and mechanical properties in one part. There are several factors influencing the mechanical properties of multi material additively manufactured parts such as the sequence of material deposition, interface temperature, interface roughness and the joining mechanisms of two materials (form closure or material closure). The impact of these parameters on the bonding strength of multi material additively manufactured parts is studied. It is shown that a form closure in combination with a low viscosity of the applied material leads to the highest interfacial bonding. No significant influence of interface temperature and roughness on the bonding strength was observed.
Additive manufacturing (3D printing) offers tremendous freedom of design with organic geometries, complex features, and internal channels that can be easily created. In order to take full advantage of the benefits, designers must also account for different considerations than with traditional manufacturing. Resolution, surface finish, feature size and build orientation can significantly impact part cost and performance. It is important to first understand the limitations of the processes in order to design accordingly. This presentation will go into detail on the design considerations for direct metal laser sintering (DMLS), stereolithography (SL), and selective laser sintering (SLS), polyjet, and multi jet fusion (MJF) 3D printing.
Any article that is cited in another manuscript or other work is required to use the correct reference style. Below is an example of the reference style for SPE articles:
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
Note: if there are more than three authors you may use the first author's name and et al. EG Brown, H. L. et al.
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