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

Effect Of Polypropylene Chain Branching On Melt Blown Process Stability
Martin Zatloukal, March 2019

In this work, linear polypropylene (L-PP) and longchain branched polypropylene miscible blend (LCB-PP), both having comparable weight average molecular weight, zero-shear viscosity and polydispersity index, were used to produce nonwovens via melt blown technology in order to understand role of long chain branching on the fiber diameter distribution.

The Benefits Of Farrel Continuous Mixing (Fcm(Tm)) Technology In Processing Polylactide (Pla) Compounds
Lori Sheehan, March 2019

Continuous mixing technology was first developed in the early 1960’s in an effort to create continuous rubber processing traditionally done in batch form. Due to the method of melting and mixing in a highly efficient manner, it has found a niche in highly filled or shear sensitive mixing/compounding applications. Polylactide resins are shear and temperature sensitive polymers that can benefit from continuous mixing technology in both neat and compounded processing applications.

Extremely Low Emission Polyoxymethylene For Automotive Interior Parts
SungHye Kim, March 2019

This paper presents the results of new extremely low emission (XLE) POM and low emission and improved odor PP long fiber reinforced thermoplastics (LFRT). The results highlight emissions that meet the current VOC requirements. Additionally, the products have significant improvement in odor and meet global demands.

Direct Joining Of Polytetrafluoroethylene And Polyamide To Steel Via Use Of Surface Treatment
Miranda Marcus, March 2019

The need to be able to directly join polymers to metals is growing. For example, in the drive to make batteries smaller, more energy efficient, longer lasting, and less expensive to manufacture, direct joining of polymers to metals offers many benefits. In this work, the use of a unique, commercially available, surface treatment method has been investigated as a potential method of making direct joining feasible.

Disinfectant Resistant Materials For Medical Devices
Manish Nandi, March 2019

Against a background of increasingly aggressive disinfection protocols being used in the medical sector, there is a compelling need for improved chemically resistant thermoplastics for medical device housings. We describe the development of exciting new materials, leveraging SABIC’s LNP™ copolymer technology to step beyond the performance of existing materials, such as polycarbonate and polybutylene terephthalate, showing compatibility with the most aggressive disinfectants currently in the market.

Flexil – A Novel Soft Touch Thermoplastic Elastomer
YOUHAO YANG, March 2019

Flexil®, a polymeric modifier can be used to uniquely tune and modify various types of elastomers and polymers. The versatility of Flexil creates a new platform for engineers to slightly tune their matrix polymer without sacrificing the inherent performances for a variety of end applications.

A Computational Study Of Necking And Drawing Of Plastic-Rubber Laminates
Rahul Gopalan Ramachandran, March 2019

Semi-crystalline polymers undergo necking followed by stable drawing under tensile forces. Whereas, a rubber extends many times its original length uniformly under tension. The necking and drawing behavior of the semicrystalline material can be modified by the addition of a rubber layer. Finite element simulation of plastic-rubberplastic tri-layers suggest that the applied stretch at which the neck develops, and the natural draw ratio can be controlled by varying the thickness of the rubber.

On-Line Processability Characterization Of Thermoplastic Formulations During Injection Molding
Christopher Thurber, March 2019

Processability is a critical performance parameter when developing thermoplastic formulations for injection molding applications. This paper describes various on-line methods for quantifying processability and compares the results with off-line rheological methods.

Developing Scratch-Resistant Clear Coating For Automotive By Using Molecular Necklace Cross-Linker
Moon sung wook, March 2019

Surfaces of the automobile are damaged in various forms due to external forces. The most common damage is scratch. It is not only a physical damage but also a fatal failure in an aesthetic point of view. Scratch damages are often observed on the clearcoat, which is the top layer of the automotive paint. In this study, scratch tests were conducted to evaluate the scratch resistances of various types of clearcoat layers. ASTM D7027 standard was modified to observe scratch damage more clearly.

Chromatic Effects For Sensitive Plastics Applications
Aaron Hollman, March 2019

This paper highlights the use of organic pigments, pearlescent effects and metallic pigments in the design of decorative materials for sensitive plastics applications. Examples of sensitive applications include food packaging and toys, as well as, cosmetic packaging, pharmaceutical applications and medical devices.

Plastic Design Pitfalls
Pavan Valavala | Paul Tres, March 2019

This paper will review a number of plastic part design pitfalls which came to a head when a little boy was badly burned after his digital watch caught fire and partially burned. The product was designed in the US and mass produced in China. The design of the product was improper, however the tool design and execution made it worse.

Melt Index And Extensional Rheology Combined
tim haake, March 2019

Using two established measurements, the combination thereof rolled into one instrument and one measurement, is herewith covered. A Melt Indexer and an Elongation Tester put together, greatly enhance the usefulness of each test result by itself, while saving much time compared to running tests individually. GOETTFERT has many years of experience with both individual tests and developed the D-MELT in close cooperation with a customer, who has many years of experience with a similar design mix. Introduction

Two-Tiered Approach To Extending Food Life
Wylie Royce, March 2019

There are several approaches to extending food life including but not limited to; Oxygen Scavengers, Anti-Microbials, UV Blockers and Absorbers, as well as Multi-Layer Films. No single additive has been found that will effectively address the various food products and by-product from rotting food and extending the life and taste of food. We Utilize two products which in combination slow the degradation of food and the spoilage cycle.

Modelling Laser Light Transmission In Thermoplastic Composites Using Monte-Carlo Simulation
Philip Bates, March 2019

The distribution and quantity of laser energy reaching the weld interface are both important for predicting the quality of a laser-transmission weld. A Monte-Carlo model for simulating the path of laser light through light-scattering plastic parts has been developed and validated. The model accounts for absorption, scattering, and reflection in the transparent polymer. The model outputs include the transmittance of the inputted laser light as well as the energy density distribution at the weld interface.

Case Study: Synergy Of Industrial Design And Plastics Engineering Applied To The Design Of A Hyperspectral Imaging Camera
Michael Paloian, March 2019

Innovative products are recognized by designs which have creatively applied a new technology or when a common utilitarian product is been reinvented to reenergize its market appeal. This case study will describe the development of a unique medical device based on the interdependency of industrial design and plastics engineering to yield an award-winning design that could only be attained by a comprehensive integration of these two disciplines.

The Effect Of Boundary Conditions, Material Parameters, And Rotational Flow On Center Layer Thickness And Stability In Tri-Layer Annular Flow
Tyler Schneider, March 2019

A tri-layer simulation study utilizing ANSYS Polyflow was conducted in an attempt to understand the effect of the material parameters, namely viscosity and elasticity ratios, on center layer thickness and stability under annular flow. During the study, it was determined that inflow boundary conditions also had a considerable impact on the thickness trends observed. Results of two different inflow boundaries and four material parameter conditions are presented and discussed within.

Advancements In Decorative Pvd Chromium Coatings For Polymer Substrates
Michael Brazil, March 2019

Environmentally friendly PVD on plastics for automotive decoration are rapidly gaining acceptance. They replace galvanic processes, eliminating their toxic process and waste stream for plating on plastic (POP). VTI’s SuperChrome has already received approvals from Daimler and PSA. Part design for PVD, polymer selection, and available range of color and appearance will be discussed. OEM specifications based on testing, unique to PVD and distinct from both electroplate and painted surfaces are required.

Biopolyesters For Agriculture: Permeation And Degradation For Controlling Chemical Release
Margaret J Sobkowicz, March 2019

Biobased and biodegradable polymers are well suited to agricultural applications where hey can be left in the field to degrade into innocuous byproducts. These polymers are lso widely used for biomedical controlled release. However, the properties and egradation rates are not necessarily suitable for the environmental conditions and utrient demand of plants. In this work, two different biodegradable polyesters are repared and contrasted in terms of their diffusion and degradation rates.

Characterization Of Recycled Polymer Compound By Thermal Analysis
Yanxi Zhang, March 2019

Thermal analysis techniques, such as DSC, TGA, DMA and TMA are commonly used in polymer characterization. In this paper these techniques with the help of Identify, a database search software, are used to characterize recycled polymer compounds for preselection.

Heat Treated Bamboo Fiber For Sustainable Polymer Blends
Curtis Covelli, March 2019

This study evaluated polymer composites produced from recycled PA6 and PP blend with bamboo fiber. Blends of bamboo fiber were used as received, as well as heat treated. It was observed that heat treatment at 160ºC/180ºC improved the tensile and impact properties of the composite compared to untreated fiber composite. The goal of the study was to produce a thermally stable, lightweight composite suitable for under-hood applications.

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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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