Research of Deformation Qualities of Porous Materials Enhancing Computer Design of Wetsuit

Osipenko

Стенькина

2018

SSP

In the article research results are presented, the aim of which is to provide high quality and reliability while using heat-protective structures for machines and people. Textile materials perform important function contacting moisture in the atmosphere. Results of moist environment textile structure and properties research are also presented here. It was established that multilayer structure with free elementary cells, including knitwear, for the purposes of barrier maintenance of moisture level is not sufficient. Based on the performed experimental research, new characteristics and properties pattern defining behavior of materials while contacting liquids (wetting, capillarity, moisture, hygroscopy) are established. Recommendations relating to groups and samples of textile materials are given. The research was made in Don State Technical University within the framework of State Assignment of the Ministry of education and science of Russia under the project 11.9194.2017/BCh.

Section: Solid State Phenomena Vol 284mentioning

confidence: 99%

Influence of Structure and Composition of the Fibrous Materials on the Performance Characteristics of Thermal Protection Structures with Combined Functions

Osipenko

Стенькина

2018

SSP

“…Therefore, it is insufficient to predict oil permeation into textile materials proceeding from the data on interface with plain water and sea water. Meanwhile, it is important to research not only the behavior of clothing surface material saturated with aggressive liquid components [22] to a certain extent. Assessment of permeation of such liquids deep into a package of textile materials is of high importance.…”

mentioning

confidence: 99%

Effect of Aggressive Components of the Marine Environment the Protective Properties of the Textile Materials

Lesnikova

Korinteli

2017

SSP

Self Cite

The article provides the details on the influence of marine environment on textile materials. It justifies the aggressive components of marine environment in contact with clothing surface: sea salt and oil. Sea salt is an integral part of sea water and accumulates in the structure of clothing. Oil becomes a part of sea water in contingency situations at offshore oil and oil products production and transportation facilities. This causes a variation of the properties of textile materials that depend on the concentration of aggressive components in the structure of textile materials. Active concentration of aggressive components in the textile is defined based on its liquid absorption capacity. The article establishes the peculiarities of volume variation for different textile fibers interfacing with liquids. It identifies the structure of sea salt and chemical composition of oil that cause a variation of the properties of textile in contact with them. It was established that the presence of sea salt in humid environment contacting with the surface of special cotton based fabric causes reduction of capillarity in all material samples. It was established that the packages of materials based on fabrics with mixed fibers have crude oil permeation less than cotton surfaces of clothing. Meanwhile, use of thermal insulation, like Hollofiber together with such materials, reduces the level of clothing saturation with subject liquids. The article presents experimentally obtained data on sea water and oil permeation into special clothing materials.

“…Materials Engineering and Technologies for Production and Processing III into polymer deformations in a hydrostatic pressure environment shows that it is difficult to record the stages of reversible and nonreversible compression deformation in near-real experimental simulation of diving operations [17][18][19].…”

mentioning

confidence: 99%

“…-Thickness of the volume layer of a foamed material is measured in specially designated structure sections using independent recorders of ultimate compression deformations in an enclosed volume. This data recording system is capable of saving the readings after hydrostatic loads are removed, both for nonreversible and reversible deformations [17].…”

mentioning

confidence: 99%

Study of Compression Soft Porous Foam Materials

Kornev

Paschen

2017

SSP

Self Cite

The paper presents the findings of the research into neoprene-like soft foamed materials during compression in water. The specific features of the internal structure of such materials lead to complex deformations. This is related to the specific features of the internal structure of materials that contain a large amount of inert air. The paper also presents the findings of structural studies which explained the relationship between the elastic properties of materials and the strength of polymer bonds forming internal air cavities. When foamed the polymer sections are destroyed under compression, it results in the loss of enclosed volume of air voids. This changes the total volume and thickness of the material, which defines some physical and thermal properties of products made of such material. Hydrostatic pressure environments have their own specific features. Rheological properties of soft polymers in a hydrostatic pressure environment give rise to a composite effect of compression deformation. The study of recent developments in the research into polymer deformations in a hydrostatic pressure environment shows that it is difficult to record the stages of reversible and nonreversible compression deformation in near-real experimental simulation of diving operations. The paper presents the developments and findings of experimental design studies for a product (wetsuit) made of foamed materials that were conducted in a hydrostatic pressure environment in an enclosed volume using special Drucktank equipment by the Marine Engineering Department of the University of Rostock