AI Article Synopsis
- The study focuses on creating biocomposites using kraft lignin and evaluating their physical and chemical properties, particularly their resistance to environmental factors like UV light and water.
- Biocomposites were synthesized with a main monomer (BPA.DA), a reactive diluent (EGDMA), and kraft lignin as an eco-friendly filler, utilizing a UV curing process.
- Various tests, including thermal analysis, tensile and flexural tests, and assessments of wettability and swelling, were conducted, pointing to the potential use of these materials as UV-curable coatings based on their enhanced durability and stability.
Article Abstract
This study concerns the synthesis of biocomposites with kraft lignin, investigation of their physicochemical properties, and tests of their resistance to environmental factors such as UV irradiation and water. The biocomposites were synthesized using bisphenol A glycerolate (1 glycerol/phenol) diacrylate (BPA.DA) as a main monomer, ethylene glycol dimethacrylate (EGDMA) as a reactive diluent, and kraft lignin (L) as an environmentally friendly filler, in a UV curing process. Morphological analysis of the resulting materials was carried out using scanning electron microscopy and confocal microscopy. Thermal properties were investigated using thermogravimetric analysis. Tensile and flexural tests were performed for all obtained materials. Additionally, the wettability and swelling of the obtained composite samples were analyzed. The changes observed in the structure and properties of the polymers as a result of aging were investigated by means of ATR-FTIR analysis, optical profilometry and hardness tests. The results obtained regarding the effect of lignin addition on the properties of composite materials, with particular emphasis on their resistance to environmental factors, may be of crucial importance for their further applications, inter alia as UV-curable coating materials.
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| http://dx.doi.org/10.1016/j.ijbiomac.2021.02.193 | DOI Listing |
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