Thermally conductive polymer nanocomposites for filament-based additive manufacturing

2022 ◽  
Author(s):  
Basel Almuallim ◽  
W. S. W. Harun ◽  
Ihab Jabbar Al Rikabi ◽  
Hussein A. Mohammed
Keyword(s):  
Additive Manufacturing ◽  
Polymer Nanocomposites ◽  
Conductive Polymer ◽  
Thermally Conductive

Additive Manufacturing of Conductive Polymer Nanocomposites Under the Influence of External Magnetic Field

2016 ◽  
Author(s):  
Kiran Babu Koyalamudi ◽  
Ruoyu Yang ◽  
Rahul Rai
Keyword(s):  
Magnetic Field ◽  
Carbon Nanotubes ◽  
Additive Manufacturing ◽  
External Magnetic Field ◽  
Polymer Nanocomposites ◽  
Multiwalled Carbon Nanotubes ◽  
Polymer Matrix ◽  
Conductive Polymer ◽  
Multiwalled Carbon ◽  
Preferential Alignment

Conductive polymer nanocomposites (CPNCs) have gained a lot of attention by the researchers, in recent times, due to their diverse technological applications in different domains. This paper discusses the additive manufacturing of conductive polymer nanocomposite. Maghemite-Multiwalled carbon nanotubes were synthesized, and later dispersed in an acrylate resin, followed by curing with UV DLP 3D printer, under the presence of external magnetic field. Maghemite-Multiwalled carbon nanotubes showed superior magnetic properties, when compared to Multiwalled carbon nanotubes and lead to improvements in preferential alignment of filler material in the polymer matrix. The initial experimental results show preferential alignment of Maghemite-Multiwalled carbon nanotubes in the polymer matrix under the influence of external uniform magnetic field, at an intensity of 120 Gauss.

Highly thermally conductive polymer nanocomposites based on boron nitride nanosheets decorated with silver nanoparticles

RSC Advances ◽  
2016 ◽  
Vol 6 (47) ◽  
pp. 41630-41636 ◽  
Author(s):  
Fangfang Wang ◽  
Yimin Yao ◽  
Xiaoliang Zeng ◽  
Tao Huang ◽  
Rong Sun ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Boron Nitride ◽  
Thermal Resistance ◽  
Polymer Nanocomposites ◽  
Conductive Polymer ◽  
Interfacial Thermal Resistance ◽  
Boron Nitride Nanosheets ◽  
Thermally Conductive

The interfacial thermal resistance among boron nitride nanosheets are reduced by sintering silver nanoparticles deposited on boron nitride nanosheets surfaces, beneficial for the forming networks.

ADDITIVE MANUFACTURING OF HIGH-LOADING POLYMER NANOCOMPOSITES WITH MULTISCALE ALIGNMENT

2021 ◽  
Author(s):  
SOYEON PARK ◽  
KUN (KELVIN) FU
Keyword(s):  
Additive Manufacturing ◽  
Polymer Nanocomposites ◽  
High Performance ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
High Productivity ◽  
Macro Scale ◽  
The Matrix ◽  
Multiscale Structures ◽  
Printing Direction

Polymer nanocomposites have advantages in mechanical, electrical, and optical properties compared to individual components. These unique properties of the nanocomposites have attracted attention in many applications, including electronics, robotics, biomedical fields, automotive industries. To achieve their high performance, it is crucial to control the orientation of nanomaterials within the polymer matrix. For example, the electric conductivity will be maximized in the ordered direction of conductive nanomaterials such as graphene and carbon nanotubes (CNTs). Conventional fabrication methods are commonly used to obtain polymer nanocomposites with the controlled alignment of nanomaterials using electric or magnetic fields, fluid flow, and shear forces. Such approaches may be complex in preparing a manufacturing system, have low fabrication rate, and even limited structure scalability and complexity required for customized functional products. Recently, additive manufacturing (AM), also called 3D printing, has been developed as a major fabrication technology for nanocomposites with aligned reinforcements. AM has the ability to control the orientation of nanoparticles and offers a great way to produce the composites with cost-efficiency, high productivity, scalability, and design flexibility. Herein, we propose a manufacturing process using AM for the architected structure of polymer nanocomposites with oriented nanomaterials using a polylactic acid polymer as the matrix and graphite and CNTs as fillers. AM can achieve the aligned orientation of the nanofillers along the printing direction. Thus, it enables the fabrication of multifunctional nanocomposites with complex shapes and higher precision, from micron to macro scale. This method will offer great opportunities in the advanced applications that require complex multiscale structures such as energy storage devices (e.g., batteries and supercapacitors) and structural electronic devices (e.g., circuits and sensors).

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