Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Leonard Szczepkowski"'
Autor:
Dominik Grzęda, Grzegorz Węgrzyk, Adriana Nowak, Joanna Idaszek, Leonard Szczepkowski, Joanna Ryszkowska
Publikováno v:
Polymers, Vol 15, Iss 12, p 2754 (2023)
Polyurethane foams are widely used in biomedical applications due to their desirable mechanical properties and biocompatibility. However, the cytotoxicity of its raw materials can limit their use in certain applications. In this study, a group of ope
Externí odkaz:
https://doaj.org/article/72d2c0ea79654677956df3e9e506e798
Autor:
Dominik Grzęda, Grzegorz Węgrzyk, Adriana Nowak, Gabriela Komorowska, Leonard Szczepkowski, Joanna Ryszkowska
Publikováno v:
Materials, Vol 16, Iss 4, p 1527 (2023)
Components for manufacturing polyurethane foams can adversely affect the human body, particularly if they are in contact with it for long periods. In applications where the foam is not placed directly into the body, the study of the product’s effec
Externí odkaz:
https://doaj.org/article/4e26cbdfffb34d7c80ab4e1aad3307b9
Autor:
Dominik Grzęda, Grzegorz Węgrzyk, Milena Leszczyńska, Leonard Szczepkowski, Michał Gloc, Joanna Ryszkowska
Publikováno v:
Materials, Vol 15, Iss 1, p 133 (2021)
One of the essential factors in prostheses is their fitting. To assemble a prosthesis with the residual limb, so-called liners are used. Liners used currently are criticized by users for their lack of comfort, causing excessive sweating and skin irri
Externí odkaz:
https://doaj.org/article/477805aab1034acdbe1314ece20ed29b
Autor:
Małgorzata Okrasa, Milena Leszczyńska, Kamila Sałasińska, Leonard Szczepkowski, Paweł Kozikowski, Adriana Nowak, Justyna Szulc, Agnieszka Adamus-Włodarczyk, Michał Gloc, Katarzyna Majchrzycka, Joanna Ryszkowska
Publikováno v:
Materials, Vol 15, Iss 1, p 151 (2021)
Consistent and proper use of respiratory protective devices (RPD) is one of the essential actions that can be taken to reduce the risk of exposure to airborne hazards, i.e., biological and nonbiological aerosols, vapours, and gases. Proper fit of the
Externí odkaz:
https://doaj.org/article/1139ca8ba3544bb285f8d682e5741863
Autor:
Małgorzata Okrasa, Milena Leszczyńska, Kamila Sałasińska, Leonard Szczepkowski, Paweł Kozikowski, Katarzyna Majchrzycka, Joanna Ryszkowska
Publikováno v:
Materials, Vol 14, Iss 7, p 1600 (2021)
A key factor in effective protection against airborne hazards, i.e., biological and nonbiological aerosols, vapors, and gases, is a good face fit of respiratory protective devices (RPDs). Equally important is the comfort of use, which may encourage o
Externí odkaz:
https://doaj.org/article/a145066fd2a54b9ab1125973ed729e87
Autor:
Monika Auguścik-Królikowska, Joanna Ryszkowska, Maria Kurańska, Marta Wantulok, Michał Gloc, Leonard Szczepkowski, Katarzyna Dąbkowska-Susfał, Aleksander Prociak
Publikováno v:
Materials, Vol 14, Iss 4, p 934 (2021)
Taking into account the circular economy guidelines and results of life cycle analyses of various materials, it was proposed to use a blackcurrant pomace filler in the production process of viscoelastic polyurethane (PUR) foams intended for applicati
Externí odkaz:
https://doaj.org/article/6e292c9fe9dd4ce8a964ebd53496f1c6
Autor:
Ryszkowska, Dominik Grzęda, Grzegorz Węgrzyk, Adriana Nowak, Joanna Idaszek, Leonard Szczepkowski, Joanna
Publikováno v:
Polymers; Volume 15; Issue 12; Pages: 2754
Polyurethane foams are widely used in biomedical applications due to their desirable mechanical properties and biocompatibility. However, the cytotoxicity of its raw materials can limit their use in certain applications. In this study, a group of ope
Autor:
Małgorzata Okrasa, Milena Leszczyńska, Kamila Sałasińska, Leonard Szczepkowski, Paweł Kozikowski, Adriana Nowak, Justyna Szulc, Agnieszka Adamus-Włodarczyk, Michał Gloc, Katarzyna Majchrzycka, Joanna Ryszkowska
Publikováno v:
Materials, Vol 15, Iss 151, p 151 (2022)
Materials; Volume 15; Issue 1; Pages: 151
Materials
Materials; Volume 15; Issue 1; Pages: 151
Materials
Consistent and proper use of respiratory protective devices (RPD) is one of the essential actions that can be taken to reduce the risk of exposure to airborne hazards, i.e., biological and nonbiological aerosols, vapours, and gases. Proper fit of the
Autor:
Sylwia Przekurat, Adam Przekurat, Monika Auguscik-Krolikowska, Leonard Szczepkowski, Joanna Ryszkowska, Milena Leszczyńska
Publikováno v:
Polimery. 65:681-690
Blowing agents play an important role in the production of cellular polyurethanes. The traditional chemical blowing agent H2O/CO2 did not meet all application requirements. This led to the introduction of physical foaming agents in the 1950–1960s,
Autor:
Rafal Oliwa, Monika Auguscik-Krolikowska, Mariusz Oleksy, Leonard Szczepkowski, Joanna Ryszkowska, Agata Ambroziak
Publikováno v:
Polimery. 65:708-718
The subject of the research presented in this article are viscoelastic polyurethane foams (VPF) made using a fillers from coffee grounds. The foams were made with varying content of coffee fillers. Foams and fillers were characterized by means of tec