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?
Andrzej K. Bledzki , Abdullah A. Mamun , Karsten Erdmann , M. M. Huque, May 2010
Abaca fibre reinforced PP composites were prepared using a high speed mixer followed by injection moulding with 30% of fibre load. Prior to composite production, the fibre was modified by o- hydroxy benzene diazonium salts, synthetic and natural enzyme. The effect of modification of the fibre was assessed on the basis of moisture resistance, mechanical, thermal properties of the resulting composites. Coupling agent (PPMA 6452) has been used to increase the interaction between fibre and polymer matrix.
Andrzej K. Bledzki , Abdullah A. Mamun , Adam Jaszkiewicza , Jürgen Volk, May 2010
PLA-composite materials were prepared by
injection moulding process through high speed hot-cool
melt compounding process with 40 wt% loads of husk.
Chain extender (Joncryl ADR 4368) has been used during
the melt mixer. To characterize the composites materials
morphology mechanical (tensile flexural and charpy)
thermal (crystallinity Tg and Tm) and rheological (melt
flow rate viscosity) properties were studied and the
properties were compared to soft wood fibre composite’s
properties.
Andrzej K. Bledzki , Abdullah A. Mamun , Adam Jaszkiewicza , Jürgen Volk, May 2010
PLA-composite materials were prepared by injection moulding process through high speed hot-cool melt compounding process with 40 wt% loads of husk.Chain extender (Joncryl ADR 4368) has been used during the melt mixer. To characterize the composites materials, morphology, mechanical (tensile, flexural and charpy) thermal (crystallinity, Tg and Tm) and rheological (melt flow rate, viscosity) properties were studied and the properties were compared to soft wood fibre compositeƒ??s properties.
Wade DePolo, Ronald D. Moffitt, Frederick L. Beyer, James M. Sands, May 2010
Confinement effects on the mechanical properties of ultrathin polymer films were investigated by a bubble inflation technique developed in our lab. Prior studies of ultrathin films of poly(vinyl acetate) (PVAc) and polystyrene (PS) were performed on circular bubbles of different diameters. Here we show early results of rectangular bubble measurements for PS thin films. Results are compared with those for the circular bubbles.
Dr. Scott Wright , Brian Noble , Carlo Giubardo , Lisa Swain, May 2010
Titanium dioxide pigment (TiO2) is notoriously difficult to process due to its self-binding properties and dusty nature. It is possible for the form of the titanium dioxide to be modified to an easy-flow pigment. This modification allows for lower dust levels which improve the working environment, and offer process efficiencies which lead to lower conversion costs and more consistent quality.
An overview is given of the various drivers, needs and trends in the automotive industry and how these are matched by various new plastic solutions, which in the end all significantly increase the sustainability of various car components and of the cars in total.
This paper overviews advancements in the
electrification of valve gate actuation in Hot Runner
systems for use in cleanroom environments.
This paper offers a review of the existing
technologies laying out the advantages and disadvantages
of the various offerings in the market. It will also help the
molders to choose the right application for cleanroom
production.
This paper overviews advancements in the electrification of valve gate actuation in Hot Runner systems for use in cleanroom environments. This paper offers a review of the existing technologies, laying out the advantages and disadvantages of the various offerings in the market. It will also help the molders to choose the right application for cleanroom production.
Rei-ichi Konishi , Kazushi Yamada , Yasuo Hashimoto , Yew Wei Leong , Tetsuya Tsujii , Hiroyuki Hamada, May 2010
Multi-layered laminated films are widely used as
general packaging materials and thermal lamination is
one of the environmentally friendly techniques since it
does not involve solvents during lamination. The heat
exerted during the heat- sealing process however
could affect the lamination strength of these films. In
this study we focused on the relationship between the
results of pinhole test and the properties of heat sealed
parts.
Rei-ichi Konishi , Kazushi Yamada , Yasuo Hashimoto , Yew Wei Leong , Tetsuya Tsujii , Hiroyuki Hamada, May 2010
Multi-layered laminated films are widely used as general packaging materials and thermal lamination is one of the environmentally friendly techniques since it does not involve solvents during lamination. The heat exerted during the heat- sealing process, however, could affect the lamination strength of these films. In this study, we focused on the relationship between the results of pinhole test and the properties of heat sealed parts.
Anthocyanins have been chosen as natural
crosslinking agents for polyvinyl alcohol (PVOH).
Tosylation of secondary hydroxyl functionality in PVOH
was carried out with p-toluenesulfonyl chloride in the
presence of bases. The structures of the crosslinked PVOH
and the crosslinking mechanism were established from their
1H NMR spectral. Hydroxyl contents in PVOH decreased
due to the crosslinking of tosylated PVOH with
anthocyanin. It was also found that crosslinking of PVOH
by anthocyanin enhanced the mechanical properties of
PVOH film.
Polyethylene terephthalate (PET) is a widely used
resin in production of carbonated soft drinks bottles made
by injection stretch blow molding (ISBM) process. Light
weighting of the PET bottles has the potential to reduce
the materials and manufacturing costs. This paper present
a simulation study where performs of reduced weight are
assessed in terms of the process viability and the product
quality.
The objective of this work is to demonstrate the
concept of “simulation driven package development”. The
concept involves not only simulating the structural
behavior of the medical package (e.g. under top loading)
but also predicting the package material distribution due to
the manufacturing process conditions and tying that to the
structural analysis. The structural analysis will thus take the
more physical and usually non-uniform part material
thickness distribution into consideration. The concept is
highlighted through a case study.
I. Nishi , S. Matsubara , Y. W. Leong , H. Hamada , A. Goto, May 2010
Damping materials such as thermoplastic elastomer
(TPE) usually has very low stiffness and easily
deformable hence they are unsuitable for structural
applications. This paper focuses on using sandwich
injection molding technology to produce parts consisting
PP skin and TPE core to impart high surface rigidity
while maintaining dampening efficiency. Correlation
between skin-core adhesion and flexural and damping
properties of the moldings are discussed.
I. Nishi , S. Matsubara , Y. W. Leong , H. Hamada , A. Goto, May 2010
Damping materials such as thermoplastic elastomer(TPE) usually has very low stiffness and easilydeformable, hence they are unsuitable for structuralapplications. This paper focuses on using sandwichinjection molding technology to produce parts consistingPP skin and TPE core to impart high surface rigiditywhile maintaining dampening efficiency. Correlationbetween skin-core adhesion and flexural and dampingproperties of the moldings are discussed.
Jared Spaniol , Andrew Koleck , Brian Young, May 2010
It is a popular belief that when two plastic flow fronts converge, they merge, forming one single parabolic pressure-driven flow front. This is a common misconception; because plastic flow is laminar, these flow fronts should remain separate and maintain two individual parallel parabolic flow fronts. The purpose of this research is to examine the effect on part properties caused by increased orientation due to maintaining parallel flow fronts.
This project examines the thermal differences between conventional and conformal cooling lines.?ÿ Three sets of inserts were built for this study.?ÿ A P20 insert was built and used to compare the other two rapid tooling inserts.?ÿ One rapid tooling insert had the same conventional cooling lines as the P20 insert.?ÿ The other rapid tooling insert had conformal cooling lines.?ÿ Mold temperatures were recorded and compared.?ÿ The conformal inserts had the lowest mold temperatures.
N. Kunimune, S. Tamada, T. NagasawA, Y. Makata, Y.W.Leong, H. Hamada, May 2010
Pigments are basically used to impart color. But the reflection of Near Infrared Radiation (NIR) is a requirement of modern pigments that gains particular importance for a multitude of uses. This paper reports about smart ways to formulate with this class of pigments. The main objective in this context is the enhancement of coloristic and NIR-reflective properties in typical plastics applications.
Johannes Loebel, Sami Schehata, Steven Goldstein, May 2010
Within this paper the effect of material formulation on the light-shielding performance of thermotropic glazings for overheating protection purposes is addressed. Specific focus is given to the establishment of relationships between glazing morphology and the light-shielding properties. Some major routes for further research and material optimization are deduced.
John Perdikoulias , Jiri Svabik , Tim Womer, May 2010
The paper presents an exploratory fundamental study of the polymer flow within a “wave” type screw channel. The analysis is performed on an “unwrapped” form of a conventional screw channel and a “wave” type channel of similar size. A 3D Finite Element Method (FEM) simulation was used to simulate the flow field and flow characteristics of the wave channel are compared relative to the plain channel.
84 countries and 60k+ stakeholders strong, SPE
unites
plastics professionals worldwide – helping them succeed and strengthening their skills
through
networking, events, training, and knowledge sharing.
No matter where you work in the plastics industry
value
chain-whether you're a scientist, engineer, technical personnel or a senior executive-nor
what your
background is, education, gender, culture or age-we are here to serve you.
Our members needs are our passion. We work hard so
that we
can ensure that everyone has the tools necessary to meet her or his personal & professional
goals.
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.
.jpg)
.jpg)
.jpg)
.jpg)
