scholarly journals Influence of 2,4-diaminotoluene modifier on the physical and mechanical properties of epoxy composite coatings

2018 ◽  
Vol 91 (3) ◽  
pp. 36-45
Author(s):  
Danylo Stuklyak ◽  
Anna Sapronova ◽  
Vitaliy Yatsiyk ◽  
Bogdan Gryschuk
Keyword(s):  
Mechanical Properties ◽  
Epoxy Composite ◽  
Composite Coatings ◽  
Physical And Mechanical Properties

scholarly journals Optimization of Ingredients upon Development of the Protective Polymeric Composite Coatings for the River and Sea Transport

2021 ◽  
Vol 23 (2) ◽  
pp. B89-B96
Author(s):  
Andriy Buketov ◽  
Serhii Yakushchenko ◽  
Abdellah Menou ◽  
Oleh Bezbakh ◽  
Roman Vrublevskyi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Epoxy Composite ◽  
Composite Coatings ◽  
Physical And Mechanical Properties ◽  
Polymeric Composite ◽  
Epoxy Oligomer ◽  
Mathematical Planning ◽  
Sea Transport ◽  
Operational Characteristics ◽  
Critical Content

It is proved that in order to increase the operational characteristics of parts of the river and sea transport, including their physical and mechanical properties, it is advisable to use the protective polymeric composite coatings. The effect of fillers on the flexural stresses of the developed epoxy composite was analyzed. The critical content of components was determined by the method of mathematical planning of the experiment: the synthesized powder mixture - 0.05 pts.wt., discrete fibers - 0.10 to 0.15 pts.wt. per 100 pts.wt. of epoxy oligomer ED-20. Introduction of such ingredients into the epoxy binder allows to increase the flexural stresses to σ f=77.4…78.6 MPa. The obtained results allow to create materials with improved values of physical and mechanical properties.

scholarly journals Effect of Filler Nature on Chemical Resistance and Microhardness of Epoxy Composite Films

2015 ◽  
Vol 16 (3) ◽  
pp. 528-533
Author(s):  
G. Martinyuk ◽  
O. Aksimentyeva ◽  
N. Skoreiko ◽  
V. Zakordonskyi
Keyword(s):  
Mechanical Properties ◽  
Chemical Resistance ◽  
Filler Content ◽  
Epoxy Composite ◽  
Composite Films ◽  
Physical And Mechanical Properties ◽  
Epoxy Composites ◽  
Mineral Filler ◽  
Operating Characteristics ◽  
Mineral Fillers

We investigated the processes of water absorption, chemical stability and microhardness of films of epoxy composites that contained as the polymer matrix the epoxy resin UP-655 and mineral fillers: graphite, mica, aluminum oxide at their content (0 - 30 % mass). It found that introduction of mineral fillers significantly affects on all complex of operating characteristics of the films. Increase of filler content, especially mica, to 20 %, resulting in slower process and reducing the quantity of absorbed moisture by films. In the study of physical and mechanical properties of filled epoxy composites was established that the introduction of mineral filler significantly affects their microhardness, and the nature of the exposure is determined by the type and filler content.

scholarly journals FUNCTIONAL COATINGS APPLICATION FOR STRENGTHENING AND RESTORATION OF AVIATION PRODUCTS

Aviation ◽  
2005 ◽  
Vol 9 (4) ◽  
pp. 39-45 ◽  
Author(s):  
Sergey Dmitriyev ◽  
Anatoly Koudrin ◽  
Vasily Labunets ◽  
Miroslav Kindrachuk
Keyword(s):  
Mechanical Properties ◽  
Surface Hardening ◽  
Composite Coatings ◽  
Erosive Wear ◽  
Physical And Mechanical Properties ◽  
Functional Coatings ◽  
Surface Strengthening ◽  
Restoration Techniques ◽  
Modern Technologies ◽  
Practical Recommendations

The article deals with the analysis of modern technologies of surface hardening and restoration of the working parts of aviation products. The technologically sophisticated methods of obtaining multifunctional composite coatings with an application of effective sources of energy are described. These methods permit structures with predetermined physical and mechanical properties to be formed on working surfaces. The results of testing alloys and coatings under conditions of abrasive and erosive wear are tested. Practical recommendations on application of the aircraft parts surface strengthening and restoration techniques, taking into account conditions of operation, are brought forward.

The potential of metal epoxy composite (MEC) as hybrid mold inserts in rapid tooling application: a review

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Radhwan Bin Hussin ◽  
Safian Bin Sharif ◽  
Shayfull Zamree Bin Abd Rahim ◽  
Mohd Azlan Bin Suhaimi ◽  
Mohd Tanwyn Bin Mohd Khushairi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Epoxy Composite ◽  
Mold Insert ◽  
Physical And Mechanical Properties ◽  
Rapid Tooling ◽  
Current Application ◽  
Content Type ◽  
Manufacturing Technologies ◽  
New Formulation ◽  
Research Studies

Purpose Rapid tooling (RT) integrated with additive manufacturing technologies have been implemented in various sectors of the RT industry in recent years with various kinds of prototype applications, especially in the development of new products. The purpose of this study is to analyze the current application trends of RT techniques in producing hybrid mold inserts. Design/methodology/approach The direct and indirect RT techniques discussed in this paper are aimed at developing a hybrid mold insert using metal epoxy composite (MEC) in increasing the speed of tooling development and performance. An extensive review of the suitable development approach of hybrid mold inserts, material preparation and filler effect on physical and mechanical properties has been conducted. Findings Latest research studies indicate that it is possible to develop a hybrid material through the combination of different shapes/sizes of filler particles and it is expected to improve the compressive strength, thermal conductivity and consequently increasing the hybrid mold performance (cooling time and a number of molding cycles). Research limitations/implications The number of research studies on RT for hybrid mold inserts is still lacking as compared to research studies on conventional manufacturing technology. One of the significant limitations is on the ways to improve physical and mechanical properties due to the limited type, size and shape of materials that are currently available. Originality/value This review presents the related information and highlights the current gaps related to this field of study. In addition, it appraises the new formulation of MEC materials for the hybrid mold inserts in injection molding application and RT for non-metal products.

scholarly journals Electro-plasticity’s Effect By Deformation And Impulse Impact Of A High Energy Electromagnetic Field

2021 ◽  
Vol 2131 (4) ◽  
pp. 042059
Author(s):  
Andrey Kochetov ◽  
Elena Fisunova ◽  
Tatiana Lavrenova ◽  
Lyubov Filonenko
Keyword(s):  
Mechanical Properties ◽  
Electromagnetic Field ◽  
Service Life ◽  
Protective Coatings ◽  
Composite Coatings ◽  
Amorphous Material ◽  
Physical And Mechanical Properties ◽  
High Energy ◽  
Ultrasonic Field ◽  
Subsequent Formation

Abstract The problem of obtaining predicted physical and mechanical properties and a given service life of multifunctional composite protective coatings in the form of barrier layers that increase the service life of mechanical engineering products and formative tools are inherently interconnected. Among all the variety of innovative highly efficient technological processes, a special place should be given to the method of electro-acoustic spraying (ELAN). This method is innovative in the field of synthesis of multifunctional composite coatings, which allows the formation of protective films of an amorphous material on any conductive substrates [1]. This technology is based on the use of the complex energy of an electric spark and a complex ultrasonic field. The aim of this work is to optimize the process of obtaining multifunctional composite protective coatings based on the complex mass transfer of the electrode material and the subsequent formation of amorphous structures with predictable physical and mechanical properties by the method of electro-acoustic spraying based on the effect of electro-plasticity during deformation and pulsed action of a high-energy electromagnetic field.

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