Investigating the carbon materials’ microwave absorption and its effects on the mechanical and physical properties of carbon fiber and carbon black/ polypropylene composites

2016 ◽  
Vol 51 (16) ◽  
pp. 2263-2276 ◽  
Author(s):  
Jafar Rezania ◽  
Hamid Rahimi
Keyword(s):  
Microwave Irradiation ◽  
Physical Properties ◽  
Carbon Materials ◽  
Loss Modulus ◽  
Polymeric Materials ◽  
Microwave Treatment ◽  
Structural Defects ◽  
Polypropylene Composites ◽  
Dynamic Mechanical ◽  
Mechanical And Physical Properties

Carbon compounds have high dielectric losses, which means that these materials are heated efficiently by microwave irradiation. Carbon materials can be used as microwave absorbers in polymeric materials that are transparent to microwave irradiation. In this paper, carbon-reinforced polypropylene composites were exposed to microwave irradiation and then their dynamic mechanical thermal properties, electromagnetic shielding, and surface morphology were investigated. The test results showed that mechanical and physical properties of carbon–polypropylene composites improved following microwave exposure. The dynamic mechanical thermal analysis results showed that their storage and loss modulus were improved following microwave treatment. It is postulated that microwave irradiation heats carbon materials, which is likely to melt neighboring matrix thus improving interfacial adhesion and structural defects.

Sugar palm fiber/polyester nanocomposites: Influence of adding nanoclay fillers on thermal, dynamic mechanical, and physical properties

2019 ◽  
Vol 26 (3) ◽  
pp. 236-243 ◽  
Author(s):  
Rao M. Shahroze ◽  
Mohamad R. Ishak ◽  
Mohamad S. Salit ◽  
Zulkiflle Leman ◽  
Muthukumar Chandrasekar ◽  
...  
Keyword(s):  
Physical Properties ◽  
Palm Fiber ◽  
Dynamic Mechanical ◽  
Sugar Palm Fiber ◽  
Mechanical And Physical Properties

scholarly journals Effect of Structural Defects on Physical Properties of Polymeric Materials

1971 ◽  
Vol 20 (217) ◽  
pp. 1087-1093
Author(s):  
Yasaku WADA
Keyword(s):  
Physical Properties ◽  
Polymeric Materials ◽  
Structural Defects

scholarly journals Influence of Operating Conditions on Structure and Physical Properties of Polymeric Materials

2017 ◽  
Vol 18 (2) ◽  
pp. 206-210
Author(s):  
N. I. Domantsevych ◽  
O. V. Shunkina ◽  
B. P. Yatsyshyn
Keyword(s):  
Physical Properties ◽  
Cold Water ◽  
Polymeric Materials ◽  
Operating Conditions ◽  
Polymer Materials ◽  
Structural Defects ◽  
Electron Microscopic ◽  
Mechanical Loads ◽  
Long Time ◽  
Microscopic Studies

The changes in structure and physical properties of polymeric materials that exploited in a long time with complex mechanical loads used in pipe systems for high-pressure cold water have been studied. A significant reduction in the mechanical properties of polymeric materials has been established. The most typical structural defects that occur in polymer materials during manufacture and in the exploitations, using electron microscopic studies identified.

The Effect of Fiber Pretreatment and Compatibilizer on Mechanical and Physical Properties of Flax Fiber-Polypropylene Composites

2008 ◽  
Vol 16 (1) ◽  
pp. 74-82 ◽  
Author(s):  
Majid Soleimani ◽  
Lope Tabil ◽  
Satyanarayan Panigrahi ◽  
Anthony Opoku
Keyword(s):  
Physical Properties ◽  
Flax Fiber ◽  
Polypropylene Composites ◽  
Mechanical And Physical Properties

scholarly journals Effect of Microwave Irradiation on the Physical Properties and Structures of Cotton Fabric

2018 ◽  
Vol 13 (2) ◽  
pp. 155892501801300
Author(s):  
Zhao Xue
Keyword(s):  
Microwave Irradiation ◽  
Physical Properties ◽  
Cotton Fabric ◽  
Chemical Structure ◽  
Irradiation Time ◽  
Morphological Structure ◽  
Microwave Treatment ◽  
Radio Waves ◽  
X Ray Diffraction ◽  
Scanning Calorimetry

Microwaves are high frequency radio waves which are capable of penetrating many materials and causing heat to be generated in the process. To investigate the effect of microwave irradiation on the physical properties, chemical structure, surface morphological structure and fine structure of cotton fabric, cotton fabric was treated with microwave irradiation under variety of conditions in terms of the power and the time of microwave treatment. The breaking strength, breaking elongation, and whiteness of the treated cotton fabric in wet state were investigated. The structures of the untreated and treated cotton were investigated with Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and X-ray diffraction (XRD). The results show that the physical properties of the treated cotton fabrics were changed with microwave irradiation time and power. The chemical structure and the surface morphological structure did not significantly change. Crystallinity of the treated cotton was changed.

scholarly journals Effect of Microwave Irradiation on the Physical Properties and Structure of Silk Fibre

2018 ◽  
Vol 26 (4(130)) ◽  
pp. 111-115
Author(s):  
Xue Zhao
Keyword(s):  
Microwave Irradiation ◽  
Physical Properties ◽  
Irradiation Time ◽  
Morphological Structure ◽  
Microwave Treatment ◽  
Decomposition Temperature ◽  
Silk Fibre ◽  
Silk Fabric ◽  
Scanning Calorimetry ◽  
Chemical Surface

Microwaves are high frequency radio waves which are capable of penetrating many materials and causing heat to be generated in the process. To investigate the effect of microwave irradiation on the physical properties as well as the chemical , surface morphological and fine structure of silk fabric, silk fabric was treated with microwave irradiation under a variety of conditions in terms of the power and time of microwave treatment. The breaking strength, elongation at break, and whiteness of the treated silk fabric in a wet state were investigated. The structures of the untreated and treated silk were investigated with Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and X-ray diffraction (XRD). The results show that the physical properties of the treated silk fabrics were changed with the microwave irradiation time. The chemical and surface morphological structure as well as the decomposition temperature and crystallinity of the treated silk were changed.

Mechanical and physical properties of non-woven kenaf fibre mat reinforced polypropylene composites prepared by compression molding

2020 ◽  
Author(s):  
N. H. Lokman ◽  
M. B. Abu Bakar ◽  
N. Z. Noriman ◽  
M. N. Masri ◽  
M. Mohamed ◽  
...  
Keyword(s):  
Physical Properties ◽  
Compression Molding ◽  
Polypropylene Composites ◽  
Kenaf Fibre ◽  
Mechanical And Physical Properties ◽  
Woven Kenaf

scholarly journals Evaluation of Mechanical and Physical Properties of Pressed Coir Fiber/Epoxy Composite with NaOH and Microwave Treatment of Fiber

2021 ◽  
Vol 9 (2) ◽  
pp. 325-335
Author(s):  
Ilyas Renreng ◽  
Bakri Bakri ◽  
Sri Chandrabakty ◽  
Naharuddin
Keyword(s):  
Physical Properties ◽  
Epoxy Composite ◽  
Microwave Treatment ◽  
Coir Fiber ◽  
Mechanical And Physical Properties
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