Role of dicumyl peroxide on the morphology and mechanical performance of polypropylene random copolymer in microinjection molding

2017 ◽  
Vol 29 (1) ◽  
pp. 171-181 ◽  
Author(s):  
Mengjue Li ◽  
Qi Yang ◽  
Miqiu Kong ◽  
Yajiang Huang ◽  
Xia Liao ◽  
...  
Keyword(s):  
Mechanical Performance ◽  
Random Copolymer ◽  
Dicumyl Peroxide ◽  
Microinjection Molding ◽  
Polypropylene Random Copolymer

The Mechanical Performance of Carbon Fibres- Addressing the Role of Microstructure

2019 ◽  
Author(s):  
Peter Peter ◽  
Claudia Creighton ◽  
David Fox ◽  
Pablo Mota Santiago ◽  
Adrian Hawley ◽  
...  
Keyword(s):  
Mechanical Performance ◽  
Carbon Fibres

scholarly journals Role of pore pressure on cracking and mechanical performance of concrete subjected to drying

2020 ◽  
Vol 114 ◽  
pp. 103727
Author(s):  
François Soleilhet ◽  
Farid Benboudjema ◽  
Xavier Jourdain ◽  
Fabrice Gatuingt
Keyword(s):  
Pore Pressure ◽  
Mechanical Performance

Tailoring toughness of injection molded bar of polypropylene random copolymer through processing melt temperature

2011 ◽  
Vol 60 (12) ◽  
pp. 1705-1714 ◽  
Author(s):  
Feng Luo ◽  
Ke Wang ◽  
Jinwen Wang ◽  
Hua Deng ◽  
Qin Zhang ◽  
...  
Keyword(s):  
Random Copolymer ◽  
Melt Temperature ◽  
Injection Molded ◽  
Polypropylene Random Copolymer

Development of Nano Modified Eco-Friendly Green Binders for Sustainable Construction Applications

2019 ◽  
Vol 24 ◽  
pp. 25-36 ◽  
Author(s):  
Hamada Shoukry
Keyword(s):  
Water Absorption ◽  
Mechanical Performance ◽  
Raw Material ◽  
Sustainable Construction ◽  
Partial Replacement ◽  
Cementitious Composites ◽  
Water Absorption Coefficient ◽  
Compressive And Flexural Strengths ◽  
Cement Manufacturing

Cement manufacturing, which is partially responsible for environmental and health risks as well as the greenhouse gas emissions, is a binder industry that needs energy and raw material. To decrease the needing, this study develops nano-modified eco-friendly cementitious composites including industrial solid wastes and/or by-products. For this purpose, ordinary Portland cement (OPC) was partially replaced with 70 wt% of fly ash (FA), Nano metakaolin (NMK) was incorporated at a rate of 2, 4, 6, 8, 10, 12 and 14 % as partial replacement by weight of FA to take advantage of the great role of nano materials in improving the mechanical and physical properties of cement based materials. Compressive strength, flexural strength, and capillary water absorption coefficient have been studied at 28 days of curing according to the international ASTM standards. Differential scanning calorimeter (DSC) was used to study the phase composition/decomposition. The microstructure characteristics of the hardened samples were investigated by scanning electron microscope (SEM) equipped with energy dispersive analytical x-ray unit (EDAX). The results revealed that the partial replacement of cement by 70% of FA has reduced both compressive and flexural strengths by about 45% in addition; the water absorption has been increased by about 175% as compared to the OPC. The replacement of FA by different amounts of NMK compensate for the loss in strength by about 75%. Furthermore, NMK has considerably improved the microstructure and reduced the water absorption by 86%. The study concluded that, it is possible to substitute 70% of the weight of the cement in the production of eco-friendly cementitious composites with improved mechanical performance attaining 88% of the corresponding performance of the hydrated OPC. The developed composites can be considered as green binders and recommended for various applications in construction industry.

The role of nickel in mechanical performance and corrosion behaviour of nickel-aluminium bronze in 3.5 wt.% NaCl solution

2018 ◽  
Vol 139 ◽  
pp. 333-345 ◽  
Author(s):  
Fenfen Yang ◽  
Huijun Kang ◽  
Enyu Guo ◽  
Rengeng Li ◽  
Zongning Chen ◽  
...  
Keyword(s):  
Mechanical Performance ◽  
Corrosion Behaviour ◽  
Nacl Solution ◽  
Aluminium Bronze
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