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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Sustainability
Various topics related to sustainability in plastics, including bio-related, environmental issues, green, recycling, renewal, re-use and sustainability.
Transparent Permanent Antistatic Polycarboname Blend by Reflactive Index Matching Technology
Tatsuya Uchiyama, May 2015
Antistatic/dust and ESD management demands are increasing at electronics relevant use plastics especially semiconductor handling area. Transparent performance also needed at specific area because confirm able inside without opening box to minimize contamination from outside. Electrical conductive carbon filler is one option, but it?s tough to achieve both these performance. On the other hand, primary antistatic agents like a surfactant type are questioned for their duration of the antistatic performance. This paper discusses refractive index matched transparent antistatic polycarbonate and polyester blends that offer transparency, sustainable antistatic performance, and cleanliness (lower out gassing, leachable ions).
Using ZeMac? Copolymers To Reduce Costs in Nylon Compounds While Meeting Exacting Customer Performance Specifications
Ashok M. Adur, Prasad Taranekar, May 2015
Nylon is widely used in many applications. At the 2013 ANTEC in Cincinnati, our paper covered the results obtained with compounding primarily recycled nylon with the addition of small quantities of alternating ethylene and maleic anhydride ZeMac? copolymers and specific property improvements for applications in injection molded compounds. The resulting compounds have performance that can match or exceed prime virgin nylon at 30-50% cost savings. At the 2014 ANTEC in Las Vegas, our paper covered the performance enhancements to provide several advantages for upgrading virgin nylon such as increasing relative viscosity for improved melt strength and the unique improvements obtained in impact-modified nylon-6 and nylon-6,6 by reducing the negative impact of traditional impact modifiers by offering synergistic set of properties. This current paper will cover how using the unique chemistry of these copolymer products can reduce costs in nylon compounds and still meet performance specifications.
When Permanent Really Means Permanent. Polyfuze, the New Heat Fused Graphic for Polyethylene, Polypropylene and Other Olefin Resins
Jason Brownell, May 2015
The intent of this paper is to demonstrate the truly permanent nature of a new patent protected heat fusion process for the transfer of graphics to polyethylene, polypropylene and other olefin products. As stated in Wikipedia, ?Heat fusion (sometimes called heat welding or simply fusion) is a welding process used to join two different pieces of a thermoplastic. This process involves heating both pieces simultaneously and pressing them together. The two pieces then cool together and form a permanent bond. When done properly, the two pieces become indistinguishable from each other. Dissimilar plastics can result in improper bonding.?

This paper will:
Explain the difference between the new Polyfuze Graphic and other labeling processes such as In-Mold Labels (IML), Hot Stamp (Foil), Screen/Pad Printing and adhesive backed stickers.
Define the environmental significance of each of these decorating methods vs. heat fused graphics.
X-Ray Nanotomography of the Skin-Core Structure of Injection Molded Composites
Sudheer Bandla, Jay C. Hanan, May 2015
Microstructure development during polymer processing is of interest for manufacturers in engineering the final properties. Injection molding advancements have facilitated molding components with complex geometries. With industry moving towards minimizing the polymer waste while retaining the component properties, it is necessary to understand the microstructure formation in detail. Progresses in the field of X-ray imaging techniques have made it possible to characterize polymers with sub-micron resolution. In the current work, we show the applicability of X-ray nanotomography in quantifying the skin-core morphology resulting from injection molding.
Enhancing compatibility of poly(3-hydroxybutyrate) and starch
Trong-Ming Don, May 2015
Grafting poly(vinyl acetate) from starch improves film formability, thermal stability, and toughness in biodegradable poly(3-hydroxybutyrate)/starch blends.
Natural-fiber reinforced plastics for high-temperature uses
Prakash Hadimani, Padmanabhan B. Raman, Robert Roden, Sambhu Bhadra, Babu Padmanabhan, May 2015
Jute-filled polypropylene composites with a heat deflection temperature above150°C and improved mechanical and flow properties were developed on a high-performance co-rotating twin-screw compounder.
Water uptake and its effect on biocomposites
Papa-Birame Gning, Vincent Francois, Karim Bensalem, Lotfi Toubal, Jean-Christophe Cuilliere, May 2015
A non-Fickian model of moisture diffusion in a hemp/polypropylene composite allows better prediction of moisture uptake and its related effect on mechanical properties.
Investigating agricultural waste-reinforced polyurethane elastomer green composites
Mehmet Dogan, Erdal Bayramli , Umit Tayfun, June 2015
Enhancing interfacial interactions between natural filler and polymer matrix by modifying the surface of rice straw results in stronger thermoplastic polyurethane-based eco-composites.
Functionally graded porous membranes for effective sound absorption
Noureddine Atalla, Chul B. Park, Hani E. Naguib, Shahrzad Ghaffari Mosanenzadeh, July 2015
Tailoring the microstructure of biobased open-cell porous materials could enable the development of innovative, eco-friendly thermoplastic packages for acoustic applications.
Investigating the crystallization behavior of poly(lactic acid) materials
Wei Li, Zhong-Yong Fan, August 2015
The poly(L-lactide)-to-poly(D-lactide) block length ratio of star-shaped asymmetric stereoblock copolymers is a key control on the crystallization of stereocomplex crystallites.
Reducing the water uptake of environmentally friendly polypropylene composites
Rafael Balart , David Garcia-Sanoguera, Maria Dolores Samper, Alfredo Carbonell, Daniel Garcia-Garcia, September 2015
Spent coffee ground particles are treated with a fatty acid derivative in a novel hydrophobic method that improves particle dispersion and impact properties.
Enhancing the properties of low-density polyethylene composites
Thollwana Makhetha, Rantooa Moji, Mokgaotsa Mochane, Teboho Mokhena, Thabang Mokhothu, Tshwafo Motaung, Setumo Motloung, September 2015
Mechanical treatment, with the use of a Supermasscolloider, of sugar cane bagasse significantly improves the mechanical and thermal characteristics of composites made with this material.
SPE Bioplastic and Renewable Technologies Division December 2015 Newsletter
SPE Bioplastic and Renewable Technologies Division, December 2015
Read the latest issue of the SPE Bioplastic and Renewable Technologies Division newsletter.
Investigating the geometrical shape of cellulose nanocrystals
Qiang Wu, Yanjun Li, Siqun Wang, Timothy M. Young, Yujie Meng, Biao Huang, January 2016
The 3D morphology of nanoparticles prepared from switchgrass is quantitatively and statistically characterized.
Effects of surface modification on physical properties of bio-composites
Sanjay K. Nayak, Mohini Sain, Rajkumar Subbiah , Jimi Tjong, January 2016
Treated sisal fiber-based materials exhibit permeability, resin flow direction, and tensile strength changes compared with untreated samples.
Optimizing the flame retardant content of natural fiber thermoplastic composites
Leif Steuernagel, Dieter Meiners, Gerhard Ziegmann, Ahmed El-Sabbagh , Oliver Toepfer, January 2016
Aluminum trihydroxide can be used with compounded flax and polypropylene to increase flame retardance behavior, but without reducing mechanical properties.
Reinforced polylactic acid for use in high-strength biodegradable medical implants
Declan Devine , Sean Lyons, John Killion, Clement Higginbotham, Luke Geever, Yuanyuan Chen, January 2016
Melt compounding of polylactic acid and halloysite nanotubes produces a novel composite with good mechanical properties.
SPE Bioplastic and Renewable Technologies Division February 2016 Newsletter
SPE Bioplastic and Renewable Technologies Division, February 2016
Read the latest issue of the SPE Bioplastic and Renewable Technologies Division newsletter.
Enhancing the processability and performance of polylactic acid resins
Emilia Garofalo , Loredana Incarnato, Luciano Di Maio, Paola Scarfato, February 2016
An in-depth study of polylactide nanocomposite molecular characteristics demonstrates that selecting appropriate organoclays for each polylactide grade is a key issue.
Fracture behavior of high-density polyethylene composites
Sabrina Spatari, Sukjoon Na, Yick G. Hsuan, February 2016
The essential work of fracture concept was used to study the effect of nanoclay on the plain-strain fracturing of pristine and recycled blends.


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ANTEC 2016 - Indianapolis, Indiana, USA May 23-25, 2016. [On-line].
Society of Plastics Engineers
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