AI Article Synopsis
- The study focuses on developing bio-based wood adhesives to address the fossil resource shortage, specifically using sucrose.
- It investigates the efficacy of para-toluenesulfonic acid (PTSA) as a catalyst to improve the curing process, revealing optimal conditions of a 95:5 mixture ratio and 180 °C for 10 minutes.
- Results indicate that PTSA enhances sucrose curing efficiency, yielding better thermal properties and lower required temperatures compared to traditional sucrose-based adhesives.
Article Abstract
With respect to the fossil resources shortage, the development of bio-based wood adhesives is an important research topic in wood science. There has been research on using sucrose for bio-based adhesives. However, a high acid catalyst content and a high hot-pressing temperature are required when manufacturing particleboards. In this study, to explore the possibility of -toluenesulfonic acid (PTSA) as a promising acid catalyst for sucrose-based adhesives, the curing behavior of sucrose with PTSA (Suc-PTSA) was clarified. The thermal analysis results showed that the thermal properties of sucrose decreased significantly with the addition of PTSA. Based on the results of the insoluble matter rate, the optimal mixture ratio and heating conditions were determined to be 95:5 and 180 °C for 10 min, respectively. According to the results of FT-IR, the heat-treated Suc-PTSA contained furan compounds. In the context of the dynamic viscoelasticity, the onset temperature at which the storage modulus () begins to rise was significantly lower than those of the other sucrose-based adhesives. PTSA has the potential to cure sucrose more efficiently and at lower temperatures than previous sucrose-based adhesives, making it a promising acid catalyst for sucrose.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10708137 | PMC |
| http://dx.doi.org/10.3390/polym15234592 | DOI Listing |
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