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Opracowanie i weryfikacja założeń do konstrukcji aktywnych układów materiałów przeznaczonych na odzież chroniącą przed czynnikami gorącymi

100%

Bartkowiak G. , Dąbrowska A. , Okrasa M.

tom nr 1

25--30

Active clothing with protective properties adjusting to the level of hazards can be adopted at many workplaces e.g. in metallurgy. In particular, it concerns situations when the worker is not exposed constantly to the high level of hazardous factors, but only periodically e.g. during tlie inspection works. Therefore, a model of active clothing protecting against heat and flame is under the development within a project conducted in the CIOP-PIB. In this paper, assumptions fora construction of active textile systems intended for clothing protecting against heat and flame are presented and verified on a basis of laboratory tests. Tests of a resistance of textile systems to the radiant heat, as well as convective heat from the flame, indicated that implementation of distancing elements between the textile layers caused a creation of insulating air gap and as a consequence - an improvement of the selected protective properties. On a basis of test results, the most advantageous variant of materials with distancing elements has been chosen. For this variant, 80.0% increase of protective properties against radiant heat, and 74.3% increase against convective heat, have been achieved. These results confirm the correctness of undertaking research works aimed at the development of active protective clothing with shape memory elements for an improvement of safety and comfort at work in conditions of heat and flame hazards.

The use of moisture-responsive materials in 4D printing

84%

Al Nahari B. B. M. A. , Zarbane K. , Beidouri Z.

tom Vol. 119, nr 1

5--13

Purpose: The objective of this research paper is to compile a list of key moisture-sensitive smart materials used in 4D printing. These materials have applications in various fields, including industrial and medical, and the list can be used as a reference for creating 4D-printed sensors and actuators. Design/methodology/approach: The smart materials used in 4D printing are discussed, and a description of each material is given, including its principle, applications and areas of use. Findings: We have discovered a large number of different materials that are sensitive to moisture and have identified those that are most essential for use in 4D printing. Research limitations/implications: According to the results of this research, the moisture-sensitive materials used in 4D printing have very limited use and application, and the majority of these materials are still in the research and development stage. Originality/value: This review article provides researchers interested in using smart materials to exploit 4D printing in the industrial and medical fields, as well as in many other disciplines, with a means to identify the most widely used and prevalent moisture-sensitive materials.

Materials with shape memory effect for applications in maritime

84%

Ivošević Š. , Rebeka R.

tom R. 60 nr 3 (218)

25--41

In this review it is presented the insight of challenges faced by all branches of industry in the new age, and especially the maritime industry, strive for sustainable development, better energy control, use of materials with functional properties such as shape memory, all in the direction of increasing safety and comfort. Therefore, the development of new materials with shape memory, which is associated with the introduction of optimized production and the achievement of better func-tional properties. This leads to new applications in different systems and possible use on devices, which meet the rigorous requirements of the modern industry. The research into new materials with shape memory effect and their applied use in maritime is a challenge that many researchers have encountered in recent decades, and this is why in this paper we look at the basic engineering aspect of these materials and their current as well as future applications in the maritime industry. An overview of several innovations that testify shape memory effect and superelasticity in different maritime fields will be presented in this review.

W artykule przedstawiono badania prowadzone nad nowymi materiałami z pamięcią kształtu. Opisano podstawowe aspekty inżynieryjne tych materiałów, ich właściwości funkcjonalne oraz przyszłe wykorzystanie w obszarze morskim. Dokonano przeglądu niektórych zastosowań materiałów z efektem shape memory alloy (SMA), pokazując ich innowacyjne rozwiązania. Opracowanie optymalnego procesu technologicznego do produkcji materiałów SMA i transfer wiedzy na po-ziomie przemysłowym stworzy nowe perspektywy dla żeglugi morskiej.