Exploring the Possibilities of Producing Pulp and Paper from Discarded Lignocellulosic Fibers

NagarajaGanesh, B.; Rekha, B.; Mohanavel, V.; Ganeshan, P.

doi:10.1080/15440478.2022.2137618

Cited by 7 publications

(2 citation statements)

References 30 publications

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“…The average length (0.77 mm), average width (12.59 μm), and aspect ratio (61.16) of areca nut husk fiber were smaller, higher, and lower than those of rice straw (1.01 mm, 8.07 μm, and 125.15), respectively. This result indicates that although the aspect ratio of areca nut husk fiber is lower than that of rice straw, it meets the aspect ratio requirement (>45) of the pulp and paper industry [ 20 ]. Thus, areca nut husk has potential for application in the syntheses of low-strength papers.…”

Section: Resultsmentioning

confidence: 99%

Study on Dissociation and Chemical Structural Characteristics of Areca Nut Husk

et al. 2023

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From the perspective of full-component utilization of woody fiber biomass resources, areca nut husk is an excellent woody fiber biomass feedstock because of its fast regeneration, significant regeneration ability, sustainability, low cost, and easy availability. In this study, fiber cell morphologies, chemical compositions, lignin structures, and carbohydrate contents of areca nut husks were analyzed and compared with those of rice straw, and the application potentials of these two materials as biomass resources were compared. We found that areca nut husk fibers were shorter and wider than those of rice straw; areca nut husk contained more lignin and less ash, as well as less holocellulose than rice straw; areca nut husk and rice straw lignin were obtained by ball milling and phase separation, and areca nut husk lignin was found to be a typical GHS-type lignin. Herein, the yield of lignocresol was higher than that of milled wood lignin for both raw materials, and the molecular size was more homogeneous. Tricin structural monomers were discovered in the lignin of areca nut husk, similar to those present in other types of herbaceous plants. Structures of areca nut husk MWL (AHMWL) and AHLC were comprehensively characterized by quantitative NMR techniques (that is, 1H NMR, 31P NMR, and 2D NMR). The molecular structure of AHLC was found to be closer to the linear structure with more functional groups exposed on the molecular surface, and the hydroxyl-rich p-cresol grafting structure was successfully introduced into the lignin structure. In addition, the carbohydrate content in the aqueous layer of the phase separation system was close to the carbohydrate content in the raw material, indicating that the phase separation method can precisely separate lignin from carbohydrates. These experimental results indicate that the phase separation method as a method for lignin utilization and structure study has outstanding advantages in lignin structure regulation and yield, and areca nut husk lignin is suitable for application in the same phase separation systems as short-period herbs, such as rice straw and wheat grass, and has the advantages of low ash content and high lignification degree, which will provide guidance for the high-value utilization of areca nut husk in the future.

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Section: Resultsmentioning

confidence: 99%

Study on Dissociation and Chemical Structural Characteristics of Areca Nut Husk

et al. 2023

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“…Similar to this, [32] showed that adding particle enhanced the tensile strength from the table 1 the tensile strength of composite is known. Additionally, the FESEM micrographs of the broken sample show that the interfacial adhesiveness is good and that the decreased fiber pull-out may be the cause of the maximum particle loading result [14]. The number of debonded composites in comparison when the matrix had a larger particle concentration; this could be because agglomerated particles formed [20].…”

Section: Tensile Strengthmentioning

confidence: 98%

Experimental Investigation of Hybrid Composites Using Biowastes and Calotropis Gigantea: An Eco-Friendly Approach

2023

Global NEST: The International Journal

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<p>The wastes are in many forms consist of organic materials like human, medical, food, plastics, construction waste etc. many researchers are focused on the waste management to gives more importance to the environment. The bio degradable waste was used in this research with naturals fibers. The need for hybrid composites has increased in a variety of industrial applications. A unique and useful substance is created when two or more distinct components join in this kind of composite. Because of its exceptional characteristics, research is being done on the integration of particles bio waste and fiber into polymers. The like a strong weight-to-strength ratio, immunity to rust and temperature changes, and several custom qualities. This research focuses on the property description of Calotropis Gigantea and Bio waste ashes in form of epoxy matrix and in concrete as retrofitting composite. Calotropis Gigantea and Bio waste ashes are in composite form. field emission scanning electron microscope (FESEM) The characterisation is used to make sure that the polymer's structural shape and particle dispersion are correct. The mechanical, dynamic mechanical, thermal wear and concrete strength qualities are assessed. When particles are added, the qualities improve. By raising the weight of particle at certain percentage to the matrix and concrete mixture is for to increase the mechanical properties like tension, elongation, impact. To analyze the tribological behaviour, wear analysis is carried out. The results revealed that, the laminates reinforced with Calotropis Gigantea and Bio waste ashes show maximum strength. This is correlated with the increased interaction between the fiber-matrix, waste ash and homogeneous dispersion particle and also having greater strength compare to conventional concrete. The FESEM micrographs for tensile fracture surface also provided structural morphology. The findings will provide a vivid understanding for the use of composites in various structural retrofitting applications.</p>

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