Recent Developments in Lignin- and Tannin-Based Non-Isocyanate Polyurethane Resins for Wood Adhesives-A Review
| Autor: | Antonio Pizzi, Apri Heri Iswanto, Widya Fatriasari, Petar Antov, Manggar Arum Aristri, Maya Ismayati, Muhammad Adly Rahandi Lubis, Antonios N. Papadopoulos, Sumit Manohar Yadav |
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| Přispěvatelé: | Antonios Papadopoulos, Antonio Pizzi, Aristri, Manggar Arum, Iswanto Apri Heri, Sumit Yadav, Apri heri Iswanto, Muhammad Adly Rahandi Lubis, Petar Antov, Apri Heri Iswanto, Widya Fatriasari |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Curing (food preservation) Materials science QH301-705.5 QC1-999 lignin 02 engineering and technology 010402 general chemistry 01 natural sciences tannin chemistry.chemical_compound Human health wood adhesives Lignin Tannin General Materials Science Biology (General) QD1-999 Instrumentation Polyurethane Fluid Flow and Transfer Processes chemistry.chemical_classification Polymer science Physics Process Chemistry and Technology General Engineering Engineering (General). Civil engineering (General) 021001 nanoscience & nanotechnology Isocyanate 0104 chemical sciences Computer Science Applications polyurethane resins Chemistry chemistry non-isocyanate Adhesive TA1-2040 0210 nano-technology |
| Zdroj: | Applied Sciences, Vol 11, Iss 4242, p 4242 (2021) |
| Popis: | This review article aims to summarize the potential of using renewable natural resources, such as lignin and tannin, in the preparation of NIPUs for wood adhesives. Polyurethanes (PUs) are extremely versatile polymeric materials, which have been widely used in numerous applications, e.g., packaging, footwear, construction, the automotive industry, the lighting industry, insulation panels, bedding, furniture, metallurgy, sealants, coatings, foams, and wood adhesives. The isocyanate-based PUs exhibit strong adhesion properties, excellent flexibility, and durability, but they lack renewability. Therefore, this study focused on the development of non-isocyanate polyurethane lignin and tannin resins for wood adhesives. PUs are commercially synthesized using polyols and polyisocyanates. Isocyanates are toxic, costly, and not renewable; thus, a search of suitable alternatives in the synthesis of polyurethane resins is needed. The reaction with diamine compounds could result in NIPUs based on lignin and tannin. The research on bio-based components for PU synthesis confirmed that they have good characteristics as an alternative for the petroleum-based adhesives. The advantages of improved strength, low curing temperatures, shorter pressing times, and isocyanate-free properties were demonstrated by lignin- and tannin-based NIPUs. The elimination of isocyanate, associated with environmental and human health hazards, NIPU synthesis, and its properties and applications, including wood adhesives, are reported comprehensively in this paper. The future perspectives of NIPUs’ production and application were also outlined. |
| Databáze: | OpenAIRE |
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