The influence of magnetic fiber orientation on the electric properties of conductive polymer composite material by using magnetic-assisted injection molding

Conductive polymer composite material has been widely used in many industrial fields. Regarding fibrillar composite material, since the fiber’s orientation and distribution affect the properties of product, how the orientation and distribution are controlled is an important key to improve its properties. In this study, the external magnetic field was applied to injection molding for controlling the orientated behavior of magnetic fiber during the filling process. In addition, the fiber orientation and through-plane conductivity was investigated by means of different injection speeds with or without external magnetic field. The influence of magnetic field on the orientation of fiber was observed using the scanning electron microscope. Results from this paper are expected to provide the important references for future study of conductive polymer composite material by using magnetic-assisted injection molding.

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The Effect of Temperature and Content of Conductive Filler on the Conductivity of Conductive Rubber

Materials Science Forum ◽

10.4028/www.scientific.net/msf.575-578.1335 ◽

2008 ◽

Vol 575-578 ◽

pp. 1335-1337

Author(s):

Ting Tai Wang ◽

Yu Guang Zhang ◽

Lin Feng Yang ◽

Jing Chang Zhang ◽

Sheng Man Liu

Keyword(s):

Composite Material ◽

Polymer Composite ◽

Conductive Polymer ◽

Conductive Filler ◽

Resistance Rate ◽

Polymer Composite Material ◽

Nitrile Rubber ◽

Effect Of Temperature ◽

Conductive Polymer Composite ◽

Volume Resistance

How the volume resistance rate of the conductive polymer composite material such as nitrile rubber (NBR) filled with ACET changes with temperature is studied. How the volume resistance rate of different conductive polymer composite material is affected by the content of ACET is studied. Such cases are then explained theoretically.

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Flexible conductive polymer composite material based on strutted graphene foam

Composites Communications ◽

10.1016/j.coco.2021.100757 ◽

2021 ◽

pp. 100757

Author(s):

Xiangfen Jiang ◽

Chenyang Xu ◽

Tiao Gao ◽

Yoshio Bando ◽

Dmitri Golberg ◽

...

Keyword(s):

Composite Material ◽

Polymer Composite ◽

Conductive Polymer ◽

Polymer Composite Material ◽

Graphene Foam ◽

Conductive Polymer Composite

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Effect of Magnetic Field on the Fiber Orientation during the Filling Process in Injection Molding, Part 1: Simulation and Mold Design

Materials Science Forum ◽

10.4028/www.scientific.net/msf.936.126 ◽

2018 ◽

Vol 936 ◽

pp. 126-135

Author(s):

Chen Yuan Chung ◽

Shia Chung Chen ◽

Kuan Ju Lin

Keyword(s):

Magnetic Field ◽

Injection Molding ◽

Carbon Fibers ◽

Fiber Orientation ◽

Conductive Polymer ◽

Polymer Composite Material ◽

Magnetic Flux Density ◽

Filling Process ◽

Coated Carbon ◽

The Magnetic Field

Conductive polymer composite material is increasingly applied in a variety of fields, and its related processing technology has been a focus of research and development. Regarding magnetic fiber, because the orientation and distribution of the fiber affect the electrical and mechanical properties of products, the control of fiber orientation and distribution has been regarded as a key technology. This study used magnetic-assisted injection molding to control the orientation of magnetic fibers during the melt-polymer filling process. A special mold containing a magnetic apparatus was simulated and designed. Its material and thickness of various spacing blocks as well as the optimal layout of magnets in the mold were determined. An actual mold with the same magnet layout was then manufactured accordingly, and the measured magnetic flux density was compared with simulated results. This study also examined the coupled effect of magnetic and flow fields on the orientation of nickel-coated carbon fibers, calculating the magnetic moment produced due to the influence of the magnetic field on the fibers when melt polymer flowed through various positions in the cavity during the filling process. The flow trajectories of the fibers, which were affected by the magnetic field, were also predicted.

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Injection Molding of Electrically-Conductive Polymer Composite Bipolar Plates

ECS Meeting Abstracts ◽

10.1149/ma2020-02342207mtgabs ◽

2020 ◽

Vol MA2020-02 (34) ◽

pp. 2207-2207

Author(s):

Nicholas A Chiappazzi ◽

Chadwick J Kypta ◽

Brian A Young ◽

Anthony D. Santamaria ◽

Adam S Hollinger

Keyword(s):

Injection Molding ◽

Polymer Composite ◽

Conductive Polymer ◽

Bipolar Plates ◽

Electrically Conductive ◽

Conductive Polymer Composite

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Effect of the Nature of the Layer of Conductive Polymer Composite on the Effectiveness of a Multi-Layer Electromagnetic Shielding

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1064.83 ◽

2014 ◽

Vol 1064 ◽

pp. 83-88 ◽

Cited By ~ 1

Author(s):

A. Ansri ◽

M. Hamouni ◽

S. Khaldi

Keyword(s):

Composite Material ◽

Polymer Composite ◽

Conductive Polymer ◽

Electromagnetic Shielding ◽

Polymer Layer ◽

Shielding Effectiveness ◽

Conductive Polymer Composite ◽

Electromagnetic Shielding Effectiveness

The purpose of this communication is to study the effect of the nature of the polymer layer on the electromagnetic shielding effectiveness of a multilayer organic based composite material. Our work is divided into two parts. In the first part, we set different layer thicknesses and the frequency is varied. In the second part, we set the frequency and do vary the nature of the polymer layer and the thickness of the different layers. The different results obtained we show that the efficiency is strongly influenced by the nature of the polymer layer.

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Modeling and Injection Molding of Electrically Conductive Polymer Composite Bipolar Plates

ECS Meeting Abstracts ◽

10.1149/ma2021-02581729mtgabs ◽

2021 ◽

Vol MA2021-02 (58) ◽

pp. 1729-1729

Author(s):

Jonathan K Trimpey ◽

Chadwick J Kypta ◽

Savanna L Carr ◽

Brian A Young ◽

Anthony D. Santamaria ◽

...

Keyword(s):

Injection Molding ◽

Polymer Composite ◽

Conductive Polymer ◽

Bipolar Plates ◽

Electrically Conductive ◽

Conductive Polymer Composite

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The Influence of Magnetic Fiber Orientation on the Electric Properties of Conductive Polymer Composite Material by Using Magnetic-Assisted Injection Molding

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.825.114 ◽

2019 ◽

Vol 825 ◽

pp. 114-122

Author(s):

Chen Yuan Chung ◽

Shia Chung Chen ◽

Kuan Ju Lin

Keyword(s):

Magnetic Field ◽

Composite Material ◽

External Magnetic Field ◽

Injection Molding ◽

Conductive Polymer ◽

Modern Science ◽

Polymer Composite Material ◽

Process Conditions ◽

Melt Temperature ◽

Injection Speed

With the evolution of modern science and technology, composite material is widely used in more and more fields. Its related fabrication and technology have become the important issue of development of science and engineering. Especially for fibrillar composite material, since the fiber’s orientation and distribution affect the properties of product, how the orientation and distribution are controlled is an important key to improve its properties. In this study, the external magnetic field is applied to injection molding for controlling the orientated behavior of metal fiber during the filling process. In addition, the fiber’s orientation and conductivity will be investigated by means of different process conditions (melt temperature, mold temperature, injection speed, and so on) with or without external magnetic field.

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