Isocyanate-Free, Room-Temperature Curing Polyurethanes for Structural Applications
<p id="p1">This study presents the development and characterization of novel hybrid non-isocyanate polyurethanes (NIPUs) for structural adhesive applications. A one-pot synthesis method at room temperature was developed, combining polyfunctional cyclic carbonates, diethylenetriamine, and epoxy. Kine...
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| Autores principales: | , , |
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| Formato: | Capítulo de libro |
| Lenguaje: | inglés |
| Publicado: |
IntechOpen
2025
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| Materias: | |
| Acceso en línea: | https://www.intechopen.com/chapters/1208708 |
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| _version_ | 1879164868229070848 |
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| author | Traber, Bruno Jung, Heiko Schaller, Raphael |
| author_browse | Jung, Heiko Schaller, Raphael Traber, Bruno |
| author_facet | Traber, Bruno Jung, Heiko Schaller, Raphael |
| author_sort | Traber, Bruno |
| building | IntechOpen |
| collection | Acceso abierto |
| description | <p id="p1">This study presents the development and characterization of novel hybrid non-isocyanate polyurethanes (NIPUs) for structural adhesive applications. A one-pot synthesis method at room temperature was developed, combining polyfunctional cyclic carbonates, diethylenetriamine, and epoxy. Kinetic investigations revealed significant differences between bi- and tricyclic carbonates, with tricyclic variants demonstrating superior curing kinetics. The hybrid NIPUs exhibited remarkable lap-shear strengths of 14–16 MPa on untreated aluminum and planed beech wood after 12 hours of room-temperature curing. The absence of isocyanates offers health and safety advantages in various applications. The versatility of hybrid NIPUs was demonstrated through their broad adhesion spectrum and adaptable mechanical properties, positioning them as promising candidates for diverse industrial applications, including battery component encapsulation and multi-material laminates. While challenges remain, particularly in the availability of higher-functional cyclic carbonates, this research opens new avenues for high-performance adhesive systems.</p> |
| doi_str_mv | 10.5772/intechopen.1008852 |
| first_indexed | 2026-10-15T21:41:10Z |
| format | Book Chapter |
| fullrecord | <oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><identifier>intech-1208708</identifier><datestamp>2025-01-28</datestamp>
<dc:title>Isocyanate-Free, Room-Temperature Curing Polyurethanes for Structural Applications</dc:title>
<dc:creator>Bruno Traber</dc:creator>
<dc:creator>Heiko Jung</dc:creator>
<dc:creator>Raphael Schaller</dc:creator>
<dc:subject>Physical Sciences, Engineering and Technology</dc:subject>
<dc:description><p id="p1">This study presents the development and characterization of novel hybrid non-isocyanate polyurethanes (NIPUs) for structural adhesive applications. A one-pot synthesis method at room temperature was developed, combining polyfunctional cyclic carbonates, diethylenetriamine, and epoxy. Kinetic investigations revealed significant differences between bi- and tricyclic carbonates, with tricyclic variants demonstrating superior curing kinetics. The hybrid NIPUs exhibited remarkable lap-shear strengths of 14&ndash;16&nbsp;MPa on untreated aluminum and planed beech wood after 12&nbsp;hours of room-temperature curing. The absence of isocyanates offers health and safety advantages in various applications. The versatility of hybrid NIPUs was demonstrated through their broad adhesion spectrum and adaptable mechanical properties, positioning them as promising candidates for diverse industrial applications, including battery component encapsulation and multi-material laminates. While challenges remain, particularly in the availability of higher-functional cyclic carbonates, this research opens new avenues for high-performance adhesive systems.</p></dc:description>
<dc:publisher>IntechOpen</dc:publisher>
<dc:date>2025-01-28</dc:date>
<dc:type>Chapter, Part Of Book</dc:type>
<dc:identifier>https://www.intechopen.com/chapters/1208708</dc:identifier>
<dc:identifier>doi:10.5772/intechopen.1008852</dc:identifier>
<dc:language>en</dc:language>
<dc:relation>ISBN:978-1-83634-440-7</dc:relation>
<dc:rights>https://creativecommons.org/licenses/by/3.0/</dc:rights>
<dc:source>https://www.intechopen.com/books/1004238 ; Adhesives - Properties, Modifications, Typical and Innovative Applications</dc:source>
</oai_dc:dc> |
| id | intech-1208708 |
| institution | IntechOpen |
| isbn | 978-1-83634-440-7 |
| language | English |
| last_indexed | 2026-10-15T21:41:10Z |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | IntechOpen |
| publisherStr | IntechOpen |
| record_format | oai_dc |
| spelling | intech-12087082025-01-28 Isocyanate-Free, Room-Temperature Curing Polyurethanes for Structural Applications Bruno Traber Heiko Jung Raphael Schaller Physical Sciences, Engineering and Technology <p id="p1">This study presents the development and characterization of novel hybrid non-isocyanate polyurethanes (NIPUs) for structural adhesive applications. A one-pot synthesis method at room temperature was developed, combining polyfunctional cyclic carbonates, diethylenetriamine, and epoxy. Kinetic investigations revealed significant differences between bi- and tricyclic carbonates, with tricyclic variants demonstrating superior curing kinetics. The hybrid NIPUs exhibited remarkable lap-shear strengths of 14–16 MPa on untreated aluminum and planed beech wood after 12 hours of room-temperature curing. The absence of isocyanates offers health and safety advantages in various applications. The versatility of hybrid NIPUs was demonstrated through their broad adhesion spectrum and adaptable mechanical properties, positioning them as promising candidates for diverse industrial applications, including battery component encapsulation and multi-material laminates. While challenges remain, particularly in the availability of higher-functional cyclic carbonates, this research opens new avenues for high-performance adhesive systems.</p> IntechOpen 2025-01-28 Chapter, Part Of Book https://www.intechopen.com/chapters/1208708 doi:10.5772/intechopen.1008852 en ISBN:978-1-83634-440-7 https://creativecommons.org/licenses/by/3.0/ https://www.intechopen.com/books/1004238 ; Adhesives - Properties, Modifications, Typical and Innovative Applications |
| spellingShingle | Physical Sciences, Engineering and Technology Traber, Bruno Jung, Heiko Schaller, Raphael Isocyanate-Free, Room-Temperature Curing Polyurethanes for Structural Applications |
| title | Isocyanate-Free, Room-Temperature Curing Polyurethanes for Structural Applications |
| title_full | Isocyanate-Free, Room-Temperature Curing Polyurethanes for Structural Applications |
| title_fullStr | Isocyanate-Free, Room-Temperature Curing Polyurethanes for Structural Applications |
| title_full_unstemmed | Isocyanate-Free, Room-Temperature Curing Polyurethanes for Structural Applications |
| title_short | Isocyanate-Free, Room-Temperature Curing Polyurethanes for Structural Applications |
| title_sort | isocyanate free room temperature curing polyurethanes for structural applications |
| topic | Physical Sciences, Engineering and Technology |
| url | https://www.intechopen.com/chapters/1208708 |
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