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
Analysis of Internal Temperature Curves for the Process Control of Complex Parts
Denis Rodrigue, June 2018
Content: • Introduction on rotomolding process control • Data profiles • Curve analysis • Conclusion • Acknowledgements
Powder Quality, Mixing, Colorants, Proper Venting and QC Equipment
Bruce Muller, June 2018
Rotational Molding Topics: • Importance of the powder quality • Proper mixing and polishing powder • Static swirling – the ABC’s • Why colorant selection is critical • Proper venting reduces scrap • Important QC equipment
Process Temperature Control
Patrick J. Calderone, June 2018
Process Management & Control: • Classic Temperature & Control • Temperature Profile & Layer Maturation • Process Management System • Process Temperature Profile via Batch Instrumentation • Process Temperature Control via Non-Contact Instrumentation
The Benefits of Automated Conveying in Rotational Molding Plants
Rob Miller, June 2018
How does craft beer relate to our industry? • Companies have the same equipment, but use it differently based on the products that their customer’s demand. • Both industries are very open and collaborative. People freely share their operational ideas and innovations. • Key characteristics are closely monitored in both industries. • Particle size distribution matters. It causes molding issues in roto, and prevents you from getting your grist into the mash in brewing. • The operational set-ups are dependent on product mix. • Both processes are hot and physically demanding. • Both industries have a limited number of raw materials, and it’s up to the designer to use those to create different and wonderful products. • Both industries have to innovate to succeed.
The Benefits of Automated Conveying in Rotational Molding Plants
Rob Miller, June 2018
How does craft beer relate to our industry? • Companies have the same equipment, but use it differently based on the products that their customer’s demand. • Both industries are very open and collaborative. People freely share their operational ideas and innovations. • Key characteristics are closely monitored in both industries. • Particle size distribution matters. It causes molding issues in roto, and prevents you from getting your grist into the mash in brewing. • The operational set-ups are dependent on product mix. • Both processes are hot and physically demanding. • Both industries have a limited number of raw materials, and it’s up to the designer to use those to create different and wonderful products.  • Both industries have to innovate to succeed.
New Methods Of Metal 3D Printing
Ben arnold, May 2018
Abstract is uploaded
Mechanical Properties Of Reinforced Compounds For Large Format Additive Manufacturing (Lfam)
Rabeh Elleithy, May 2018
This is a technical marketing presentation about "Mechanical Properties of Reinforced Compounds for Large Format Additive Manufacturing (LFAM)"
Best Practices For Design Of Plastic 3D Printed Parts
Ashley Eckhoff, May 2018
When designing plastic parts that are to be 3D printed, the designer must consider certain unique characteristics of the plastic printing process. These characteristics imply that different techniques must be used during design of 3D printed plastic parts than what might be used during design of injection molded plastic parts and design of 3D printed metal parts. This session will discuss some of the unique aspects of designing plastic parts for 3D printing as well as unique aspects of the preparation for printing these parts.
Processing Considerations: Cellulose Nanocrystal Thermoplastic Urethane Filament Production
Jacob Fallon, May 2018
Cellulose nanocrystal (CNC) thermoplastic urethane (TPU) nanocomposites offer a wide range of unique thermal and mechanical properties. This paper focuses on solution mixing and melt processing considerations for producing cellulose nanocrystal (CNC) thermoplastic urethane nanocomposite filaments which can subsequently be printed using a fused filament fabrication (FFF) machine.
Case Study: The Hp Printer That Prints Itself
David Tucker, May 2018
The case study will provide the roadmap as to how HP’s MJF technology will be used to manufacture components for manufacturing. This case study will go through the different phases of the process that enabled 3d Printed content for the next series of MJF 3d Printers. Including the steps of Assessment, Design, Economics, and manufacturing.
Hp Multi Jet Fusion For Manufacturing
David Tucker, May 2018
Multi Jet Fusion is new to the additive manufacturing industry, but the capabilities enable the process to be used in the manufacture of production quality components. This technical session will present a deep dive into the technology and illustrate how it achieves the value proposition and how to unlock value with the technology. Additionally, applications that are enables by Multi Jet Fusion will be discussed.
Dimensional Accuracy And Design Tips For Composite Parts Made By The Fdm Process”
Vittorio Jaker, May 2018
Fiber orientation can create layers with oriented fibers that behave as pseudo-plies, analogous to more conventional continuous fiber or fabric reinforced composites. Warp and distortion of several part geometries produced from carbon fiber composites made on a Stratasys FORTUS 450mc printer are analyzed as a function of the pseudo layup and structures used to fabricate the parts. Practical solutions for mitigating warping and balancing physical properties are proposed.
Semiconductive LLDPE Power Cable Insulation Shield
Jason Zhang, May 2018
The application of linear low density polyethylene (LLDPE) in semiconductive medium voltage power cable strippable insulation shield (IS) is investigated in this work. Carbon black is mixed in the LLDPE alone and LLDPE/EVA blend in IS compounds for study. The critical performances of the IS compound, such as compatibility of carbon black, mechanical properties, strippable force to XLPE, electrical property, are briefly evaluated initially for the feasibility of LLDPE in such application. The results meet the basic requirement and indicate such possibility with cost benefit.
Nylon 12/PMMA/San Alloys For Translucent Medical Catheters
Timothy Largier, May 2018
A Nylon 12 (PA12) alloy with polymethyl methacrylate (PMMA), styrene acrylonitrile (SAN), and styrene maleic anhydride (SMA) was optimized to increase flexural modulus while maintaining translucency. It was found that the optimal PMMA/SAN ratio to reduce haze in PA12 is 68.5/31.5. This allowed for the blend system to maintain translucency at all loadings of PA12. Mechanical testing was performed revealing that the flexural modulus was improved from the base resin from 154,915psi to 301,658 psi. Tubing samples that were produced as prototype catheters are robust, translucent, and flexible.
Influence Of Oscillating Surfaces On The Rheological Behavior Of Thermoplastic Melt
Julius Geis, May 2018
This paper deals with the behavior of thermoplastic melt, which is excited by oscillations via piezoelectric actuators. The experimental setup is designed to transmit vibrations directly into the melt. The result of this procedure is a reduced viscosity for two different thermoplastic resins of up to 23 %. Amplitude and melt temperature have little to no effect on viscosity reduction during oscillation.
Rheology As A Tool To Understand Anti-Drip Properties In Flame Retardant Polycarbonate Resins
Manojkumar Chellamuthu, May 2018
We have investigated the flame retardant (anti-dripping properties) of a polycarbonate resin by using a dynamic mechanical analysis. A UV curable polycarbonate resin showed a strong rubbery plateau as a function of UV dosage and the amount of UV active end group. The average storage modulus is defined in the rubbery plateau region from 160 to 190°C with average storage modulus of 9 MPa being a threshold value to achieve optimum flame rating.
Root Cause Analysis Of Polyolefin-Based Wire And Cable Formulation Die Build-Up
Kurt Koppi, May 2018
Die build-up negatively impacted the capacity of a compounding line for the production of a polyolefin-based wire and cable formulation. This paper discusses a root cause analysis performed on the die build-up defect, the identified solution, and the resulting economic impact.
DMA – The Other Side Of Rheology
Kevin Menard, May 2018
While dynamic testing in torsional rheometers is a well known method, the use of axial or solid state DMA is often considered more of a thermal rather than a rheological technique. DMAs like the Mettler DMA 1+ allow the testing of materials from the solid state into the melt and from the uncured liquid state to a solid. This allows a fuller range of temperatures to be covered in one scan using the shear fixtures. Examples and applications will be discussed.
Innovations In Automotive Plastics “Materials And Processes"
Suresh Shah, May 2018
This presentation will discuss Innovations in Automotive Plastics “Materials and Processes/Enabling Technologies based on recent 2017 automotive innovations awards finalists and winners as well as recent innovations not submitted for awards.
Innovations In Automotive Plastics “Applications”
Suresh Shah, May 2018
This presentation will discuss Innovations in Automotive Plastics “Applications” based on recent 2017 automotive innovations awards finalists and winners as well as recent innovations not submitted for awards.


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How to reference articles from the SPE Library:

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
Available: www.4spe.org.

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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