Recent Advances in Polyurethane Applications

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials Science and Engineering".

Deadline for manuscript submissions: 20 September 2024 | Viewed by 560

Special Issue Editor


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Guest Editor
Department of Architecture, Construction and Design, Politechnic University of Bari, 70125 Bari, Italy
Interests: building environment; wind engineering; wind loads; artificial neural; network; comfort; vibration; structural dynamics
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Special Issue Information

Dear Colleagues,

Polyurethan is a versatile material that is used in architecture as an insulation, roofing, and sealant product. These applications can play a major role in insulating and air-sealing homes and buildings, helping to reduce air leakage, and reducing greenhouse gas emissions. However, it is in the field of structural engineering that this material has great potential. Polyurethane-based binders are used in composite wood products to permanently glue organic materials into oriented strand board (OSB), medium-density fiberboard (MDF), long-strand lumber, laminated-veneer lumber, and even strawboard and particleboard. The development of this material in structural engineering has allowed the full potential of additive technology to be exploited for retrofitting against vibrations induced by earthquakes and wind storms. On this background, flexible joints represent the frontiers that are necessary to increase the structure’s ductility and to reduce the ris against multihazards. Therefore, in this Special Issue, authors can submit articles that demonstrate the applications of polyurethan.

Dr. Fabio Rizzo
Guest Editor

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Published Papers (1 paper)

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Research

19 pages, 7071 KiB  
Article
Flexible Polyurethane Adhesives: Predictive Numerical Model Calibration through Experimental Testing at Elevated Temperature
by Armando La Scala, Klaudia Śliwa-Wieczorek, Fabio Rizzo, Maria Francesca Sabbà and Bogusław Zając
Appl. Sci. 2024, 14(5), 1943; https://doi.org/10.3390/app14051943 - 27 Feb 2024
Viewed by 389
Abstract
The thermo-mechanical behavior of polyurethane adhesive joints in wood structures is a crucial aspect that needs to be understood to ensure the durability and safety of timber structures, especially in seismic regions. As mass timber, particularly cross-laminated timber, continues to gain popularity as [...] Read more.
The thermo-mechanical behavior of polyurethane adhesive joints in wood structures is a crucial aspect that needs to be understood to ensure the durability and safety of timber structures, especially in seismic regions. As mass timber, particularly cross-laminated timber, continues to gain popularity as a building material, it is important to pay special attention to the behavior of connections between the timber elements. The use of flexible polyurethane adhesives presents a promising alternative to conventional mechanical connections in seismic-resistant timber structures. This research highlights the potential of polyurethane-based joints at elevated service temperature, offers a promising alternative to traditional wood joints, and suggests viability for post-fire restoration of wood structures. The response at the interface between wood and polyurethane under flexural stresses is also evaluated, underscoring the broader application possibilities of flexible adhesives in wood construction for mechanical and physical improvements. Full article
(This article belongs to the Special Issue Recent Advances in Polyurethane Applications)
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