scholarly journals Research of the Tribological Properties of Composite Polymer Materials During the Breaking-in Period

2019 ◽  
Vol 5 (11) ◽  
pp. 242-248 ◽  
Author(s):  
T. Almataev ◽  
N. Almataev ◽  
D. Moidinov
Keyword(s):  
Research And Development ◽  
Tribological Properties ◽  
Polymeric Materials ◽  
Optimal Performance ◽  
Surface Grinding ◽  
Polymer Materials ◽  
Composite Polymer ◽  
Performance Properties ◽  
Antifriction Properties ◽  
Working Bodies

Results of research and development of composite polymer materials are presented. The aim of this work was the study and development of new composite polymer materials with optimal performance properties for the working bodies of machines and mechanisms. The surface grinding of the samples was carried out using an eccentric rotary brush according to the procedure previously presented by the authors. Tribological properties of polymeric materials and coatings were determined on a tribometer. The results of the study showed that the degree of influence of fillers on the strength and antifriction properties of composite polymer materials depends on the type and nature of the filler and binder.

scholarly journals Evaluation of Tribological Properties of Polymer Materials Used for Sliding Bearings in Agricultural Machinery

2017 ◽  
Vol 21 (1) ◽  
pp. 95-103 ◽  
Author(s):  
Mariusz Walczak ◽  
Jacek Caban ◽  
Andrzej Marczuk
Keyword(s):  
Tribological Properties ◽  
Technological Development ◽  
Polymeric Materials ◽  
Polymer Materials ◽  
Agricultural Machinery ◽  
Sliding Bearings ◽  
Economic Criterion ◽  
Agricultural Engineering ◽  
Polymer Metal ◽  
Materials Used

Abstract The continuous technological development requires the use of modern materials also in agricultural engineering. Knowledge of the characteristics of tribological materials pairs cooperating with each other is useful for developing sliding nodes of agricultural machinery. Tribological properties of materials should be assessed for selection of technological materials beyond the economic criterion. The article presents analysis of the characteristics of tribological ball-on-disc wear of polymeric materials used as sliding elements for farm machines. Tribological tests were carried out under dry friction for a polymer-metal pair, and a wear rate and friction coefficient of the sample; the signs of wear were submitted to SEM observations.

scholarly journals COMPOSITE POLYMER MATERIALS FOR USE IN WORKING BODIES OF COTTON PROCESSING MACHINES AND MECHANISMS.

2021 ◽  
Vol 103 (11) ◽  
pp. 922-924
Author(s):  
Sherzod Olimzhonovich Eminov ◽  
◽  
Abdulaziz Ergashali o'g'li Xokimov ◽  
Keyword(s):  
Polymer Materials ◽  
Composite Polymer ◽  
Working Bodies

scholarly journals Investigation of Tribological Properties of Two-Component Bidisperse Epoxy-Polyester Composite Materials for Its Use in the Friction Units of Means of Sea Transport

2019 ◽  
Vol 63 (3) ◽  
pp. 171-182 ◽  
Author(s):  
Andriy Buketov ◽  
Mykola Brailo ◽  
Serhii Yakushchenko ◽  
Oleksandr Sapronov ◽  
Vasyl Vynar ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Tribological Properties ◽  
Polymeric Materials ◽  
Material System ◽  
Polyester Resins ◽  
Sea Transport ◽  
Antifriction Properties ◽  
Before And After ◽  
Polyester Composite ◽  
Phase Heterogeneity

The tribological properties of complex polymeric materials, which include epoxy and polyester resins, two hardeners and two microdispersed fillers: mica-muscovite, copper (II) oxide, were investigated in the work. The results of the testing of specimens at dry friction and in the lubricant were analyzed. It is proved, that the antifriction properties of the composite depend on its composition, formation technology and testing conditions. It has been experimentally determined, that the material which was tested in the lubricating environment – Im = 0.25–0.30 mg/km, f = 0.03–0.04, differs with the improved indexes of wear rate and friction coefficient. As a result of the analysis of investigated microsurfaces studied by optical and electron microscopy, the phase heterogeneity of the composite material system was identified. It contributes to the reduction of the running-in distance of the specimen, and indicates the uniform distribution of the filler particles on the surface, has been found. The elemental composition of the compound was determined, which indicates the direct involvement of fillers in the process of friction. A change in the ratio of atoms on the specimen surface before and after the test was found. The results of the study of the surface in the phase contrast mode correlate with the results of the data obtained by electron microscopy.

The Use of Composite Polymeric Materials to Increase the Effectiveness of Ship Ventilation Systems

2020 ◽  
Vol 869 ◽  
pp. 1-6
Author(s):  
Gia Viet Ngo
Keyword(s):  
Composite Materials ◽  
Negative Impact ◽  
Polymeric Materials ◽  
Polymer Materials ◽  
Production Waste ◽  
Waste Generation ◽  
Composite Polymer ◽  
Research Results ◽  
Technological Processes ◽  
Ventilation Systems

The article presented the use of composite polymeric materials to increase the effectiveness of ship ventilation systems in the process of its machining. As the result of the research, the author considered that, it is important to evaluate and anticipate all possible factors (technical, technological, ergonomic, environmental) associated with the negative impact of excessive production waste generation (chips and dust) in the workplace at the design stages of technological processes for machining parts made of composite materials. The research results determined the possibility of using composite polymer materials for manufacturing the structures of ship ventilation systems, as well as other ship systems.

Antifriction Wear-Resistant Composite Materials and Details Made from them for Working Bodies of Cotton Machines and Mechanisms

2012 ◽  
Vol 616-618 ◽  
pp. 2005-2008 ◽  
Author(s):  
N.S. Abed Negmatova ◽  
S.S. Negmatov ◽  
G. Gulyamov ◽  
J.N. Negmatov
Keyword(s):  
Composite Materials ◽  
Polymer Materials ◽  
Composite Polymer ◽  
Wear Resistant ◽  
Working Bodies

We researched and developed the composite polymer materials and products from them, working in conjunction with raw-cotton. It is established that the production of friction pairs of working parts of machines (pegs) made of developed composite polymer materials increases their efficiency and durability to 2.0 -2.2 times.

scholarly journals DEVELOPMENT OF THE COMPOSITION OF A COMPOSITE MATERIAL BASED ON THERMOREACTIVE BINDER ED-20

2021 ◽  
pp. 35-38
Keyword(s):  
Protective Coatings ◽  
Polymeric Materials ◽  
Interpolation Formula ◽  
Polymer Materials ◽  
Complex Configuration ◽  
Technological Equipment ◽  
Technological Properties ◽  
Composite Polymer ◽  
Lagrange Method ◽  
Large Size

The aim of the study is to determine the effect of the type of structural modifier and filler on the structure formation and technological properties of potting composite polymeric materials (HCPM) and protective coatings for sheet and complex-configuration technological equipment, taking into account their rheological properties. Compositions of composite polymer materials based on a thermosetting binder of epoxy-diane resin ED-20 filled with a mineral filler - kaolin modified with gassipol resin (GS) - were developed using Newton's interpolation formula and the Lagrange method. The optimal amount of gossypol resin determined in the composition of the composite – in the amount of 6-10 mass., including in relation to sheet coverings and 8-12 wt. h. for parts of large-size complex-configuration technological equipment

Composite Polymer Materials and the Details Made of them for Cotton Machines and Mechanisms

2011 ◽  
Vol 413 ◽  
pp. 535-538
Author(s):  
Nodira Abed-Negmatova ◽  
Jakhongir Negmatov ◽  
Giyoz Gulyamov ◽  
Aziz Yuldashev ◽  
Sherzod Eminov ◽  
...  
Keyword(s):  
Composite Materials ◽  
Tribological Properties ◽  
High Strength ◽  
Polymer Materials ◽  
Composite Polymer ◽  
Polypropylene Composite ◽  
Wear Resistant ◽  
Mechanical And Tribological Properties ◽  
Experimental Researches

We have done experimental researches of study of impact of different fillers on physical, mechanical and tribological properties and found the optimal substance of fillers, which provides with best properties of polypropylene composite materials. We suggested the principle of construction of antifriction and antifriction-wear resistant polypropylene composite materials, which have high strength and tribological properties and used in cotton machines and mechanisms.

Determination parameters of 3D printing patriotic composite polymer materials based on ABS plasticse

2018 ◽  
Vol 4 (2) ◽  
pp. 85-90
Author(s):  
Y. M. Dovydenko ◽  
N. A. Ivanova ◽  
S. A. Chizhik ◽  
V. E. Agabekov
Keyword(s):  
3D Printing ◽  
Polymer Materials ◽  
Composite Polymer

Possibilities of using biodegradable polymeric materials in the agricultural sector

2020 ◽  
Vol 67 (2) ◽  
pp. 115-120
Author(s):  
Raisa A. Alekhina ◽  
Victoriya E. Slavkina ◽  
Yuliya A. Lopatina
Keyword(s):  
Mechanical Properties ◽  
Biodegradable Polymers ◽  
Biodegradable Polymer ◽  
Agricultural Sector ◽  
Polymeric Materials ◽  
Polymer Materials ◽  
Limiting Factors ◽  
Research Purpose ◽  
Biodegradable Materials ◽  
Advantages And Disadvantages

The article presents options for recycling polymers. The use of biodegradable materials is promising. This is a special class of polymers that can decompose under aerobic or anaerobic conditions under the action of microorganisms or enzymes forming natural products such as carbon dioxide, nitrogen, water, biomass, and inorganic salts. (Research purpose) The research purpose is in reviewing biodegradable materials that can be used for the manufacture of products used in agriculture. (Materials and methods) The study are based on open information sources containing information about biodegradable materials. Research methods are collecting, studying and comparative analysis of information. (Results and discussion) The article presents the advantages and disadvantages of biodegradable materials, mechanical properties of the main groups of biodegradable polymers. The article provides a summary list of agricultural products that can be made from biodegradable polymer materials. It was found that products from the general group are widely used in agriculture. Authors have found that products from a special group can only be made from biodegradable polymers with a controlled decomposition period in the soil, their use contributes to increasing the productivity of crops. (Conclusions) It was found that biodegradable polymer materials, along with environmental safety, have mechanical properties that allow them producing products that do not carry significant loads during operation. We have shown that the creation of responsible products (machine parts) from biodegradable polymers requires an increase in their strength properties, which is achievable by creating composites based on them. It was found that the technological complexity of their manufacture and high cost are the limiting factors for the widespread use of biodegradable polymers at this stage.

Functional composite polymer materials for electrical purpose

2020 ◽  
Author(s):  
Ekaterina Tsobkallo ◽  
Olga Moskalyuk ◽  
Anna Stepashkina ◽  
Vladimir Yudin
Keyword(s):  
Polymer Materials ◽  
Composite Polymer ◽  
Functional Composite
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