Exploration of the Origin of the UV Absorption Performance of Windmill Palm Fiber
نویسندگان
چکیده
This study aims to investigate the ultraviolet (UV) absorption property of palm fiber and to reveal the mechanism underlying its UV-shielding behavior. The UV spectra of various solvent extracts of palm fiber were investigated. Fourier transform infrared spectroscopy (FTIR) and UV spectra were used to analyze the treated palm fiber, 100% α-cellulose, and raw palm fiber. The UV absorbances of palm, bamboo, and ramie fibers and their lignin extracts were comparatively investigated. The results showed that lignin is the main contributor to the UV absorption property of palm fiber. UV spectroscopy of the solvent extracts showed that a dioxane solution exhibited an excellent extraction capacity. The analysis of the FTIR and UV spectra of treated palm fiber, 100% αcellulose, and raw palm fiber confirmed that there was a strong correlation between the UV absorption property and the chemical components. The results showed that the palm fiber exhibited superior UV absorption properties and that the lignin content noticeably affected the UV absorption degree.
منابع مشابه
Windmill Palm Fiber/Polyvinyl Alcohol Coated Nonwoven Mats with Sound Absorption Characteristics
Windmill palm single fibers (WPSFs) and fiber bundles (WPFBs) were extracted from a windmill sheath mesh. For the palm fiber acoustic application, WPSFs/WPFBs nonwoven materials and windmill palm fiber (WPF)/polyvinyl alcohol (PVA) coated nonwoven mats were developed. The effects of conditions such as the thickness and surface density of the materials and the concentration of PVA were studied. ...
متن کاملUsing Artificial Neural Network Modeling in Predicting the Amount of Methyl Violet Dye Absorption by Modified Palm Fiber
Bio-absorbent palm fiber was applied for removal of cationic violet methyl dye from water solution. For this purpose, a solid phase extraction method combined with the artificial neural network (ANN) was used for preconcentration and determination of removal level of violet methyl dye. This method is influenced by factors such as pH, the contact time, the rotation speed, and the adsorbent dosag...
متن کاملImpact of Layout Sequence of the Natural and Synthetic Adsorbents in Double-Layered Composites on Improving the Natural Fiber Acoustic Performance Using the Numerical Finite Element Method
Introduction: The acoustic performance of natural fiber adsorbents has been investigated in numerous studies. A part of these materials show a poor adsorption within the frequency range of less than 1000 Hz. In the present study, attempts were made to investigate the effect of layout sequence of double-layered composites consisting of natural and synthetic fibers on improving the acoustic adsor...
متن کاملPalm kernel fruit fiber reinforced gypsum-cement based wall panels: It’s physical and mechanical characteristics
Agricultural waste fibers have been found to be suitable as reinforcement in cement-based composites, but studies on oil palm fiber as reinforcement in gypsum-cement wall panels are scarce. A mixture of two equal weights of gypsum and cement, with water-binder ratios of 0.45 and 0.55 were prepared. In each mix a varying percentage of fiber contents of 2%, 3% and 4% by weight of the binders were...
متن کاملPalm kernel fruit fiber reinforced gypsum-cement based wall panels: It’s physical and mechanical characteristics
Agricultural waste fibers have been found to be suitable as reinforcement in cement-based composites, but studies on oil palm fiber as reinforcement in gypsum-cement wall panels are scarce. A mixture of two equal weights of gypsum and cement, with water-binder ratios of 0.45 and 0.55 were prepared. In each mix a varying percentage of fiber contents of 2%, 3% and 4% by weight of the binders were...
متن کامل