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.

The SPE Library is just one of the great benefits of being an SPE member! Are you taking advantage of all of your SPE Benefits?

Not an SPE member? Join today!

Use % to separate multiple keywords. 

Search SPE Library
Keyword/Author:
After Date: (mm/dd/yy)  
 
Sort By:   Date Added  ▲  |  Publication Date  ▲  |  Title  ▲  |  Author  ▲
= Members Only
Conference Proceedings
SCRATCH-RESISTANT TRANSPARENT POLYCARBONATES WITH ECO-COMPLIANT FLAME PROPERTIES
Vandita Pai-Paranjape , André Van Zyl , Dake Shen, May 2010
Polycarbonate resins possessing high surface hardness and improved scratch resistance have been developed for injection molding applications. Due to their transparent nature and good balance of physical and mechanical properties these resins find applications in the business equipment mobile phone and electronic device industries. They also possess increased resistance to oxygen and / or water vapor migration making them suitable candidates for medical packaging. New developments in the area of flame retardancy will be discussed in this paper.
SCRATCH-RESISTANT, TRANSPARENT POLYCARBONATES WITH ECO-COMPLIANT
Vandita Pai-Paranjape , André Van Zyl , Jan Pleun Lens , Dake Shen, May 2010
Polycarbonate resins possessing high surface hardness and improved scratch resistance have been developed for injection molding applications. Due to their transparent nature and good balance of physical and mechanical properties, these resins find applications in the business equipment, mobile phone and electronic device industries. They also possess increased resistance to oxygen and / or water vapor migration, making them suitable candidates for medical packaging. New developments in the area of flame retardancy will be discussed in this paper.
BIAXIAL FORMING BEHAVIOR OF DECORATIVE FILM LAMINATES
A.K. Bledzki, M. Rohleder, H. Kirschling, May 2010
Biaxial Forming Behavior of Decorative Film Laminates
THERMOPLASTIC POLYIMIDE- POLYETHERETHERKETONE BLENDS WITH EXCEPTIONAL HIGH TEMPERATURE PROPERTIES
Kapil C. Sheth , Robert R. Gallucci , Gurulingamurthy Haralur, May 2010
New thermoplastic polyimide (TPI) ƒ?? polyetheretherketone (PEEK) blends improve high temperature load bearing capability and dimensional stability of PEEK. These phase-separated blends maintain PEEKƒ??s fast crystallization rate unlike other one-phase miscible PEEK blends. Blend compositions can be varied to tailor mechanical thermal flow and end-use properties for a wide-array of applications.
EFFECT OF MOLECULAR ORIENTATION INDUCED BY ULTRA-HIGH INJECTION SPEED ON SCRATCH BEHAVIOR OF POLYPROPYLENE (PP)
Peming Hsu, Jui-Pin Yang, Shyh-shin Hwang, Ying-Zhong Lai, May 2010
A linearly increasing load scratch test based on ISO 19252 was performed to study scratch behavior of injection molded polypropylene (PP) at different injection speeds of 10, 100, and 1000 mm/sec. The results showed that higher injection speed led to higher scratch resistance. Wide angle X-ray diffraction (WAXD) results showed that high injection speed induced higher crystalline orientation near the surface. It was found that highly oriented polymer chains caused higher scratch resistance.
THERMO-MECHANICAL STUDIES OF DOUBLE NETWORK ELASTOMERIC SYSTEM
Naveen K. Singh , Alan Lesser, May 2010
A new approach to prepare and characterize double network elastomeric system is investigated. A styrene-ethylene-co-butylene-styrene (SEBS) triblock copolymer system containing physical crosslinks is used to achieve a double network additional crosslinking using ultra-violet (UV) light. Results from conventional monotonic tensile tests and thermo-mechanical properties are presented.
STUDY ON DISPERSIBILITY OF CARBON NANOTUBES IN CHITOSAN COMPOSITES
Yeong-Tarng Shieh , Hong-Mao Wu, May 2010
The dispersibility of carbon nanotubes (CNT) in water of different pH and in aqueous chitosan (CS) solution acidified with different acids were investigated. The untreated CNT could not disperse in water of 1 ? pH < 13 whereas the acid-treated CNT could well disperse in this range except the pH ? 3. CS was soluble in water of pH ? 3. This paper presents an investigation on the dispersibility of CNT in CS in aqueous solutions and in composite films.
STUDY ON DISPERSIBILITY OF CARBON NANOTUBES IN CHITOSAN COMPOSITES
Yeong-Tarng Shieh , Hong-Mao Wu, May 2010
The dispersibility of carbon nanotubes (CNT) inwater of different pH and in aqueous chitosan (CS)solution acidified with different acids were investigated.The untreated CNT could not disperse in water of 1 ' pH< 13 whereas the acid-treated CNT could well disperse inthis range except the pH ' 3. CS was soluble in water ofpH ' 3. This paper presents an investigation on thedispersibility of CNT in CS in aqueous solutions and incomposite films.
DEFORMATION AND FRACTURE MECHANISMS IN POLYETHYLENE / CLAY NANOCOMPOSITES
Walter Michaeli, Micha Scharf, May 2010
Polyethylene/montmorillonite nanocomposites based on LDPE, HDPE and LLDPE of similar rheological properties were prepared and mechanically tested in tension mode. It was shown that nanocomposites based on LLDPE exhibit a very peculiar behavior, with a significant improvement in toughness (elongation at break). The microstructural features of the various nanocomposites were investigated through scanning and/or transmission electron microscopy. Based on those observations, an explanation for the deformation and fracture mechanisms in LLDPE/montmorillonite nanocomposites was proposed.
SILOXANE-POLYETHERIMIDE BLOCK COPOLYMERS
Yashpal J. Bhandari , Gurulingamurthy Haralur , Peter Catsman, May 2010
A New High Heat SILTEM?? polyetherimidesiloxane block copolymer with Tg of ~202 oC is developed. It is an amophous melt processable polymer along with low flexural modulus. These polymers form transparent miscible blends with existing polyetherimidesiloxane polymer across all compositions resulting in a wider range of properties a enabling use in a gamut of applications
POLYMER-GRAPHITE NANOCOMPOSITES VIA BATCH AND CONTINUOUS SOLID-STATE PULVERIZATION METHODS
Scott R. Sabreen, May 2010
Solid-state fabrication of polymer nanocomposites has advantages over conventional processing methods. Polypropylene-graphite nanocomposites were fabricated via two contrastive solid-state processes, batch-based cryogenic milling and continuous solid-state shear pulverization. The effects of filler loading and processing parameters such as pulverization time and harshness of pulverization were investigated. Composite morphology was characterized via XRD and SEM. The mechanical properties were measured via tensile and impact testing, while the thermal behavior was probed by DSC and TGA.
HOW NUCLEATED MMW HDPE RESINS INFLUENCE BARRIER FILM STRUCTURE DESIGN
Jonathan Jeffery Stanger, Nick Tucker, Nigel Larsen, Mark Staiger, Roger Reeves, May 2010
This paper describes a film structure study involving nucleated medium molecular weight high density polyethylene (MMW HDPE) materials that enhance film properties. Using these new nucleated MMW HDPEs, several film structures have been designed to improve moisture barrier, oxygen barrier, toughness and cost, as well as reduce the environmental footprint by downgauging existing film structures. The films in this study use a variety of polyethylene materials commonly used in the film converting industry.
A COMPARATIVE EXTERIOR WEATHERING STUDY ON HIGH HEAT POLYCARBONATES FOR AUTOMOTIVE APPLICATIONS
Greg Harmon, David Grewell, May 2010
Weathering performance of a new carbon black pigmented high heat polycarbonate copolymer has been investigated. Superior retention of optical properties (e.g. color and gloss) is observed with the copolymer after 750hrs of weathering exposure in comparison with other commercial alternatives. Various surface characterization techniques are used to understand the mechanism & quantify the photodegradation effect. Morphology imaging through atomic force microscopy and Scanning Electron Microscope are used to explain the improved retention of gloss with the copolymer.
MORPHOLOGY DEVELOPMENT AND INTERFACIAL INTERACTIONS IN POLYCAPROLACTONE/THERMOPLASTIC STARCH BLENDS
Mariajosé Pineda Manzano, Joel Bohórquez, May 2010
The coalescence, continuity development, dynamic and static mechanical properties, as well as interfacial interactions, were studied for polycaprolactone/thermoplastic starch blends. These materials, prepared by a one-step extrusion process, demonstrate the features of a highly interacting system and the tensile mechanical properties demonstrate exceptional ductility at very high levels of thermoplastic starch without any added interfacial modifier.
PET/CLAY NANOCOMPOSITES BY MELT COMPOUNDING
Ghasemi Hesam , Carreau Pierre J. , Kamal Musa R, May 2010
Polyethylene terephthalate (PET) nanocomposites were prepared via melt compounding of PET and different levels of organomodified silicate layers. Cloisite 30B and thermally stable phosphonium modified montmorillonite were mixed with PET, using an internal mixer or a twin screw extruder. X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) were used to evaluate the effects of composition and processing conditions on the quality of the nanocomposites.
EFFECTS OF TEMPERATURE AND ROLL PRESSING ON THE PROPERTIES OF IPP SHEETS
David Kazmer, , Stephen Johnston, Darin VanDerwalker, May 2010
By using a processing of gas-cooling and roll pressing (GCRP), the temperature, strain and stress of isotactic polypropylene (iPP) sheets can be controlled and both ?ý-modification and ?ñ-modification can be found in the sheets. The tensile strength of sheet in longitudinal direction increased by 14.1% at most, tensile modulus 14.2%, flexural strength 50.3% and impact strength 22.2%. Therefore the strength and toughness of iPP can be increased simultaneously by GCRP.
A HISTORY OF COPOLYESTER DEVELOPMENT AT EASTMAN CHEMICAL COMPANY
Eric Moskala, May 2010
Poly(ethylene terephthalate) (PET) first appeared in beverage containers in the early 1970’s. It provided a combination of clarity toughness and barrier properties all at a reasonable cost. Over the last several decades Eastman Chemical Company has developed numerous commercially successful families of copolyesters derived from basic PET technology. This paper will present an overview of these developments starting with PET and culminating with the recent commercialization of Eastman Tritan™ Copolyesters.
A HISTORY OF COPOLYESTER DEVELOPMENT AT EASTMAN CHEMICAL COMPANY
Eric Moskala, May 2010
Poly(ethylene terephthalate) (PET) first appeared in beverage containers in the early 1970's. It provided a combination of clarity, toughness, and barrier properties, all at a reasonable cost. Over the last several decades, Eastman Chemical Company has developed numerous commercially successful families of copolyesters derived from basic PET technology. This paper will present an overview of these developments starting with PET and culminating with the recent commercialization of Eastman Tritan' Copolyesters.
IMPROVING THE FEEDING ZONE OF SINGLE SCREW EXTRUDERS AT HIGH ROTATION SPEED BY USING THE DISCRETE ELEMENT METHOD
Yashpal J. Bhandari, Robert R. Gallucci, Mark Sanner, Rajendra K. Singh, May 2010
Increasing screw speed is a possible approach to improve the performance of a single screw extruder but it challenges the processing technology and the material processed. Apart from difficult melting, the feeding of the screw with granules is complicated. This results in partially filled screw channels. In the following, the resin transfer depending on the screw speed is investigated and analyzed by means of the simulation program EDEM, which is based on the Discrete Element Method.
THE APPLICATIONS OF MULTIVARIATE STATISTICAL METHODS IN INJECTION MOLDING PROCESS MONITORING
Anshuman Shrivastava, Jeffrey Weinzweig, Stephen McCarthy, May 2010
In recent years, a series of multivariate statistical methods have been developed for batch process modeling and online monitoring, which take important batch process characteristics into consideration, such as, multiphase, batch dynamics and so on. As a typical batch process, injection molding is a suitable object to employ these methods. In this paper, the potential applications of these methods in industry are shown by monitoring and fault diagnosis results of the injection molding process.


This item is only available to members

Click here to log in

If you are not currently a member,
you can click here to fill out a member application.

We're sorry, but your current web site security status does not grant you access to the resource you are attempting to view.




spe2018logov4.png

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, ISBN: 123-0-1234567-8-9, pp. 000-000.
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.

If you need help with citations, visit www.citationmachine.net