scholarly journals Probing dispersion and re-agglomeration phenomena upon melt-mixing of polymer-functionalized graphite nanoplates

Soft Matter ◽  
2016 ◽  
Vol 12 (1) ◽  
pp. 77-86 ◽  
Author(s):  
R. M. Santos ◽  
C. Vilaverde ◽  
E. Cunha ◽  
M. C. Paiva ◽  
J. A. Covas
Keyword(s):  
Polymer Composites ◽  
Melt Mixing ◽  
Nanoparticle Agglomerate ◽  
Agglomerate Dispersion

Preparation of polymer composites with as-produced and chemically functionalised graphite nanoplates: analysis of nanoparticle agglomerate dispersion and re-agglomeration upon relaxation.

Polymer Melt Mixing: Agglomerate Dispersion

2001 ◽  
pp. 7409-7411
Author(s):  
I. Manas-Zloczower
Keyword(s):  
Polymer Melt ◽  
Melt Mixing ◽  
Agglomerate Dispersion

Electro‐conductive sensors and heating elements based on conductive polymer composites

2009 ◽  
Vol 21 (2/3) ◽  
pp. 82-92 ◽  
Author(s):  
V. Koncar ◽  
C. Cochrane ◽  
M. Lewandowski ◽  
F. Boussu ◽  
C. Dufour
Keyword(s):  
Carbon Black ◽  
Polymer Composites ◽  
Low Voltage ◽  
Conductive Polymer ◽  
Woven Fabrics ◽  
Heating Element ◽  
Melt Mixing ◽  
Content Type ◽  
Voltage Supply ◽  
Conductive Polymer Composites

PurposeThe need for sensors and actuators is an important issue in the field of smart textiles and garments. Important developments in sensing and heating textile elements consist in using non‐metallic yarns, for instance carbon containing fibres, directly in the textile fabric. Another solution is to use electro‐conductive materials based on conductive polymer composites (CPCs) containing carbon or metallic particles. The purpose of this paper is to describe research based on the use of a carbon black polymer composite to design two electro‐conductive elements: a strain sensor and a textile heating element.Design/methodology/approachThe composite is applied as a coating consisting of a solvent, a thermoplastic elastomer, and conductive carbon black nanoparticles. In both applications, the integration of the electrical wires for the voltage supply or signal recording is as discreet as possible.FindingsThe CPC materials constitute a well‐adapted solution for textile structures: they are very flexible, and thus do not modify the mechanical characteristics and general properties of the textile structure.Research limitations/implicationsIn the case of the heating element, the use of metallic yarns as electrodes makes the final structure a more rigid. This can be improved by choosing other conducting yarns that are more flexible, or by developing knitted structures instead of woven fabrics.Practical implicationsThe CPC provide a low cost solution, and the elements are usually designed so as to work with a low voltage supply.Originality/valueThe CPC has been prepared with a solvent process which is especially adapted to flexible materials like textiles. This is original in comparison to the conventional melt‐mixing process usually found in literature.

scholarly journals MAGNETIC AND DIELECTRIC PROPERTIES OF POLYMER-CERAMIC COMPOSITES SYNTHESIZED USING A MELT COMPOUND TECHNIQUE

2013 ◽  
Vol 22 ◽  
pp. 552-557 ◽  
Author(s):  
RAJSHREE JOTANIA ◽  
CHETAN CHANMAL ◽  
JYOTI JOG
Keyword(s):  
Dielectric Properties ◽  
Polymer Composites ◽  
Polymer System ◽  
Weight Percent ◽  
Ceramic Composites ◽  
Melt Mixing ◽  
New Class ◽  
Melt Compounding ◽  
Magnetic And Dielectric Properties ◽  
Magnetic Dielectric

Polymer composites have emerged as a new class of materials, which have attracted technologist as they display novel properties compared to traditional materials and dramatically improves the performance properties of polymer system. We have synthesized hexaferrite-polymer composites of Polyvinylidene Fluride (PVDF) with BaCa2Fe16O27 (2.0, 5.0 % wt/vol.) using a melt compounding technique. BaCa2Fe16O27 hexaferrite powder was prepared using a microemulsion technique and directly mixed in melted PVDF, following by a low temperature hot pressing. The composites of PVDF with various weight percent of BaCa2Fe16O27 (2.0 & 5.0% wt/vol.) were processed via melt mixing at 200°C, with 60 rpm for 5 minutes. The films of uniform thickness are about 0.5 mm is obtained by a compression molded instrument at 200°C under 5-ton pressure. The influence of BaCa2Fe16O27 hexaferrite contents on magnetic and dielectric properties of composite was investigated. The prepared PVDF- BaCa2Fe16O27 composite thick films were characterized for their magnetic; dielectric and thermal behavior employing magnetic, dielectric and thermal analysis (TGA/DTA). Maximum saturation magnetization was obtained for 5 % wt/vol. of barium calcium hexaferrite composite.

Analysis of agglomerate dispersion mechanisms of multiwalled carbon nanotubes during melt mixing in polycarbonate

Polymer ◽  
2010 ◽  
Vol 51 (12) ◽  
pp. 2708-2720 ◽  
Author(s):  
Gaurav R. Kasaliwal ◽  
Sven Pegel ◽  
Andreas Göldel ◽  
Petra Pötschke ◽  
Gert Heinrich
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Melt Mixing ◽  
Multiwalled Carbon ◽  
Agglomerate Dispersion

Tailoring graphene reinforced thermoset and biothermoset composites

2020 ◽  
Vol 36 (5) ◽  
pp. 623-652 ◽  
Author(s):  
Nur Bazilah Thalib ◽  
Siti Noor Hidayah Mustapha ◽  
Chong Kwok Feng ◽  
Rohani Mustapha
Keyword(s):  
Polymer Composites ◽  
Chemical Interaction ◽  
Effective Interaction ◽  
Mechanical And Thermal Properties ◽  
Melt Mixing ◽  
Graphene Composite ◽  
Starting Point ◽  
Thermoset Polymer ◽  
Graphene Material

AbstractThe surge of knowledge among researchers pertaining to the excellent properties of graphene has led to the utilisation of graphene as a reinforced filler in polymer composites. Different methods of graphene preparation, either bottom-up or top-down methods, are important requirements of starting materials in producing reinforced properties in the composites. The starting graphene material produced is either further functionalised or directly used as a filler in thermoset polymer matrixes. An effective interaction between graphene and polymer matrixes is important and can be achieved by incorporating graphene into a thermoset polymer matrix through melt mixing, solution mixing or in situ polymerisation processes. In addition, by taking into consideration the importance of green and sustainable composites, the details of previous work on graphene reinforced bio-thermoset polymer matrixes is discussed. The resultant mechanical and thermal properties of the composites were associated to the chemical interaction between the graphene filler and a thermoset matrix. Exploration for further variations of graphene polymer composites are discussed by taking the reinforcement properties in graphene composite as a starting point.

Tribology of natural fiber polymer composites

2008 ◽  
Author(s):  
Navin Chand ◽  
Fahim Mohammed
Keyword(s):  
Polymer Composites ◽  
Natural Fiber

Influence of the carbon micro and nanofillers on the electrical and thermal properties of the segregated polymer composites

2017 ◽  
Vol 39 (4) ◽  
pp. 219-226
Author(s):  
O.V. Maruzhenko ◽  
◽  
Ye.P. Mamunya ◽  
G. Boiteux ◽  
S. Pruvost ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Polymer Composites

Seismic Retrofit of Precast Concrete Panel Connections with Carbon Fiber Reinforced Polymer Composites

PCI Journal ◽  
2003 ◽  
Vol 48 (1) ◽  
pp. 92-104 ◽  
Author(s):  
Chris P. Pantelides ◽  
Vladimir A. Volnyy ◽  
Janos Gergely ◽  
Lawrence D. Reaveley
Keyword(s):  
Carbon Fiber ◽  
Polymer Composites ◽  
Precast Concrete ◽  
Seismic Retrofit ◽  
Fiber Reinforced Polymer ◽  
Carbon Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Reinforced Polymer ◽  
Fiber Reinforced Polymer Composites ◽  
Carbon Fiber Reinforced
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