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

Chemical Resistance Of PMMA, ASA And ASA+PC For Automotive Exterior Trim Applications
Tom Pickett, May 2018

This paper examines the chemical resistance of different grades of Polymethylmethacrylate material (PMMA), Acrylonitrile Styrene Acrylate (ASA) and Acrylonitrile Styrene Acrylate Polycarbonate (ASA+PC) that are commonly used in automotive exterior trim applications. The materials were exposed to automotive windshield washer solvent at different levels of strain.

New Resin For Liquid Cooled Modules In Electric Vehicle Battery Packs (Evbps)
Rudy Gorny, May 2018

A new concept for liquid cooled modules in electric vehicle battery packs (EVBPs) is presented. This concept requires resins with high hydrolytic stability. A new polycarbonate blend was developed that meets the requirements for this new application.

Low Temperature Solution Depolymerization Of Pla
John Campanelli, May 2018

A novel depolymerization method using low-temperature, low-pressure alcoholysis of PLA in a ternary solution is outlined in this work. Depolymerization kinetics are studied for the PLA/methanol/chloroform system at 57°C. Large changes in molecular weight can be achieved at relatively mild conditions. A tin catalyst is found to increase the reaction rate significantly. The method is well-suited to industrial recycling processes and is consistent with the concept of a circular economy.

Mechanical Properties And Effects Of Microfibrillation Of 100 % Biomass Sisal-Pla Composite
Hiroyuki Nishimura, May 2018

The mechanical properties of sisal-PLA composites were measured with a parameter of length of sisal fiber, degree of microfibrillation, and mixing method of sisal fiber. The mechanical properties of sisal-PLA composites were also compared with those of wood flour, cellulose based on hardwood, and cellulose nanofiber composites. As a result, the higher tensile strength of the sisal-PLA composite was obtained by kneading PLA and microfibrillated sisal fiber wetted with organic solvent.

Synthesis Of High Hardness Polyester Resin For Powder Coatings
JUNSEOP IM, May 2018

Since powder coatings do not use VOCs, much research has been studied as eco-friendly paints. Among these powder coatings, hybrid type is widely used in home appliances and furniture. Therefore, it is very important to meet both aesthetic characteristics and mechanical properties such as gloss and hardness. However, it is difficult to maintain high gloss with high hardness because of the inorganic filler of powder coatings.

Nanocellulose As A Sizing Agent For Glass Fiber Towards An Enhanced Glass Fiber – Epoxy Interphase
Joyanta Goswami, May 2018

Glass fiber/nanocellulose/epoxy interfacial adhesion was explored to determine the optimum coating process and nanocellulose surface chemistry for glass fiber reinforced epoxy composites. The interfacial adhesion was assessed by photoelastic scattering under a microscope and interfacial shear stress (IFSS) determination by single fiber fragmentation test (SFFT). The effect of nanocellulose as glass fiber coating on the interphase was determined and prospects of nanocellulose sizing of glass fibers (GF) were discussed.

Keynote: Color Theory And Test Methods.
Ann Smeltzer, May 2018

This is a presentation based upon the SPECAD Technical members collaborative efforts to provide support to divisions and educational organizations.

KEYNOTE: Evolution of Thermoplastic Composites in Portable Electronics
Nicholas Abbatiello, May 2018

Consumer Electronics faces certain design challenges that are similar to Automotive and Aerospace segments. Namely, how do you optimize weight, while maintaining performance standards in order to meet end use product requirements. Focus on achieving the thinnest and lightest notebook computer drives the need to examine composites fit in material selection process. The evolution of thermoplastic composite materials and manufacturing processes will be the key to enabling high volume adoption.

Numerical And Experimental Studies On Flow And Warpage During Resin Transfer Molding Process
Sejin Han, May 2018

In this paper, the numerical and experimental studies of flow and warpage of thermoset materials in a resin transfer molding (RTM) process are described. We give introduction to the theory and methods of simulation for the flow and warpage analysis. Further, two example cases are shown. One is a case where the flow during RTM process is studied. Another is the case where the warpage analysis is performed. The simulation results in this study are in good agreement with experimental results.

Developing Ultrasonic Processing Of Cnt Nanopaper/Solventless Epoxy Prepreg
Dan Zhang, May 2018

In this work, we propose an environmentally friendly innovative ultrasonic process to impregnate solventless epoxy into carbon nanotube (CNT) nanopaper (NP) (approximately 50 um thick) for fabricating prepreg nanocomposites. Both multi-wall carbon nanotube (MWNT) NP and single-wall carbon nanotube (SWNT) NP are used for prepreg fabrication. The prepregs show multi-functional performance in EMI shielding and sand erosion resistance. Process parameters including ultrasound time, amplitude level and pressure are studied for the fabrication process.

Digital Inkjet For Direct To Object Printing
Jeff Peterson, May 2018

This presentation will discuss digital inkjet technology and how it is being used for a variety of direct to object printing. It will include information on using the right type of inkjet printer (flatbed, conveyorized, or cylinder printer). It will also outline trends in the industry and how this type of technology is projected to grow.

Digital Printing Technologies For Plastics – Focus on Color Inkjet and Laser Marking
Jeff Peterson, May 2018

This presentation will examine both digital decorating processes - laser marking and digital inkjet - and look at the advantages and disadvantages of each. The discussion will include suggestions on which process is best for particular plastics decorating applications.

Reduced Density Polyamide 66 Compounds For Extrusion Applications
Ying Shi, May 2018

Polyamide 66 is widely used in the automotive industry especially for under the hood applications where resistance to high temperature, pressures, and various chemicals are needed. This paper describes the preparation of high melt viscosity, light weighting, and reinforced polyamide 66 compounds made from common injection molding grade. This material is suitable for blow molding and sheet extrusion applications where high melt strength is required. The viscoelastic properties of the compounds were characterized using capillary and oscillation rheometer.

How Polymer Rheology Impacts The Extrusion Blow Molding Process
Todd Hogan, May 2018

Will provide once it clears the Dow internal release process

Modeling Film Behavior In Pallet Unitization Applications
Pavan Valavala, May 2018

Paper will present how modeling can help establish a relationship between film material properties and application performance.

Cost Analysis For Installing New And Optimized Screws For Single-Screw Extrusion Lines
Mark A. Spalding, May 2018

Optimization of an extrusion process for maximum rate and product quality can lead to substantial cost reductions. The value to the converter can be very large and thus the payback period can be very short. This paper discusses the economic evaluations of two commercial case studies.

A Simple System Analysis For The Small Extrusion Screw And Die
Jingyi Xu, May 2018

A simple system analysis for the small screw and die in extrusion line is one of the keys to design the screw and optimize the machine performance. It explains several critical issues and features of plasticizing and extrusion performances in small extruder and die. This simplified model of small extruder will be used to analyze the size of the screw and specific die with different screw parameters as a system. The result is useful to design the small size screw, and to optimize the performance of the small extruders.

Evaluation Of Thermoplastic Polyurethane (TPU) Resins As Possible Substitues Of Current Resins For Escalator Handrails
Qingping Guo, May 2018

Two new thermoplastic polyurethanes (TPU) were evaluated in their possibility to substitute two TPUs currently used in the production of escalator handrail. The assessment is carried out through comparison of their thermal, rheological and mechanical properties. It was found that although the new TPUs show promise, changes should be carried out to make them more compatible with the current process set up and conditions.

Micro-Layered Tubing And Pipes Via Multi-Layer Co-Extrusion
Tyler Schneider, May 2018

A die was designed and validated for a layer multiplication co-extrusion line, capable of producing layer structures of tens to thousands of layers, and achieving layer thicknesses from millimeters to tens of nanometers. Validation extrusion runs utilizing the die shows the ability to successfully produce high layer number, micrometer layer thickness, samples with annular structure for an LDPE layered system. Weld lines and the formation of a concentric layer structure were achieved by the implication of an annular land having angular rotation capabilities.

Transportation And Storage Film
Tom Stalun, May 2018

Discuss new advancements in industrial film for use in pallet containment. Compare the benefits of different film wrap techniques such as stretch wrap and stretch hood.

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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.

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