Characterization of Rattan Waste for Binderless Particleboard (BPB) Production

2015 ◽  
Vol 1115 ◽  
pp. 317-320 ◽  
Author(s):  
Tajuddin Maisarah ◽  
Zuraida Ahmad ◽  
A. Roszalia ◽  
M.A. Luqman
Keyword(s):  
Thermal Analysis ◽  
Moisture Content ◽  
Morphological Study ◽  
Raw Materials ◽  
Lignin Content ◽  
Value Added ◽  
Vascular Bundles ◽  
Endothermic Process ◽  
High Lignin Content

The manufacturing of furniture using rattan is becoming common nowadays, and creates high amount of waste that can be value-added into binderless particleboards (BPB). In order to determine the suitability of the rattan waste for production of BPB, characterization of rattan waste is executed and reported in this paper. The physical properties such as density and moisture content of the rattan waste, together with its morphological study and thermal analysis as well as lignin content are evaluated. It is observed that density and moisture content for rattan waste are in the range of 0.64g/cm3, and 11.3% respectively. On the other hand, the morphology of rattan stem showed that rattan waste has various diameters of vascular bundles along with wide metaxylem vessels as well as thin-walled fibres. Thermal analysis of rattan waste explicated that rattan waste went through endothermic process with peak melting point of 177.80 °C during heating. The greatest weight loss occurred at 257.03 °C. Rattan waste has high lignin content of 21.2% that obtained through Klason lignin test. These promising preliminary results show that the rattan waste is appropriate to be used as raw materials in producing BPB.

Studies to optimize the process of biofuel production from castor stalk

2018 ◽  
Vol 90 (2) ◽  
pp. 271-284
Author(s):  
Vasudha Kotia ◽  
Rangananthan Vijayaraghavan ◽  
Vidhya Rangaswamy ◽  
Pavankumar Aduri ◽  
Santosh B. Noronha ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Cellular Structure ◽  
Raw Materials ◽  
Lignin Content ◽  
Value Added ◽  
Cost Effective ◽  
Biofuel Production ◽  
Regenerated Cellulose ◽  
Particle Sizes ◽  
High Lignin Content

Abstract Lignocellulosic biomass is a rich source of cellulose and one of the most promising raw materials for the production of biofuels and other value added chemicals. However, its high lignin content and complex cellular structure represent a significant processing challenge. In this work, the effect of pretreatment using [EMIM][Ac] was studied at various process parameters in order to develop a cost-effective process. In order to minimize the loss of sugars in this process bulk of the solids, comprising both regenerated cellulose and undissolved particles were subjected to the enzymatic hydrolysis. Up to 96% enzymatic digestibility was achieved, even with relatively coarse particle sizes (0.6–1.0 mm range), at 10% biomass loading. The enhanced digestibility of CS is attributed to reduction in lignin content, crystallinity of the cellulose coupled with an increase in surface area.

scholarly journals Stability evaluation of tocopheryl acetate and ascorbyl tetraisopalmitate in isolation and incorporated in cosmetic formulations using thermal analysis

2010 ◽  
Vol 46 (1) ◽  
pp. 129-134 ◽  
Author(s):  
Mariana Mandelli de Almeida ◽  
Cibele Rosana Ribeiro de Castro Lima ◽  
Joyce Santos Quenca-Guillen ◽  
Elder Moscardini Filho ◽  
Lucildes Pita Mercuri ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Raw Materials ◽  
Skin Aging ◽  
Tocopheryl Acetate ◽  
Stability Evaluation ◽  
Scanning Calorimetry ◽  
Cosmetic Formulations ◽  
Cosmetic Formulation ◽  
Excellent Tool

In view of the increase in the number of cosmetic preparations containing antioxidant vitamins, chiefly, due to their action in preventing the process of skin aging, there is a need to develop pre-formulation studies and to validate analytical methods in order to obtain high quality products. Thus, the objective of this research was to evaluate and compare the thermal behavior of tocopheryl acetate and ascorbyl tetraisopalmitate as raw materials, and incorporated into a base cream. Thermogravimetry (TG / DTG) and differential scanning calorimetry (DSC) were used for this purpose. Both vitamins were found to be stable up to 250ºC. The base cream (placebo) and the sample (base cream containing the vitamins) presented different weight loss. Thermal analysis has shown itself to be an excellent tool for the characterization of these vitamins and can be used in routine analysis for quality control of this type of cosmetic formulation.

scholarly journals CHEMICAL-MINERАLOGICAL CHARACTERIZATION OF BAUXITES FROM DIFFERENT DEPOSITS

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Gordana Оstojić ◽  
Dragica Lazić ◽  
Branko Škundrić ◽  
Jelena Penavin Škundrić ◽  
Slavica Sladojević ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Thermal Analysis ◽  
Raw Materials ◽  
Mineralogical Composition ◽  
Chemical Characteristics ◽  
X Ray Diffraction ◽  
X Ray ◽  
Scanning Electron

From the aspect of their chemical and mineralogical composition, bauxites are very complex multicomponent raw materials. The paper presents the characterization of bauxite from several different deposits: Brazil, Milići, Čitluk and Kosovo. Chemical characteristics were determined by a combination of different analytical methods: gravimetry, potentiometric titration, atomic absorption spectroscopy (AAS) and UV-VIS spectrophotometry. Mineralogical composition was determined using X-ray diffraction and thermal analysis methods. Chemical and structural characterization is complemented by the results of scanning electron microscopy with EDX analysis. The information obtained was used for the assessment of the quality of investigated bauxites from the aspect of their application in the production of alumina.

The suitability of banana leaf residue as raw material for the production of high lignin content micro/nano fibers: From residue to value-added products

2017 ◽  
Vol 99 ◽  
pp. 27-33 ◽  
Author(s):  
Quim Tarrés ◽  
Eduardo Espinosa ◽  
Juan Domínguez-Robles ◽  
Alejandro Rodríguez ◽  
Pere Mutjé ◽  
...  
Keyword(s):  
Lignin Content ◽  
Value Added ◽  
Raw Material ◽  
Leaf Residue ◽  
Banana Leaf ◽  
High Lignin Content ◽  
Value Added Products

X-ray diffraction data of tibolone Δ4 isomer (isotibolone)

2009 ◽  
Vol 24 (4) ◽  
pp. 337-342 ◽  
Author(s):  
Selma Gutierrez Antonio ◽  
Fabio Furlan Ferreira ◽  
Gabriel Lima Barros Araujo ◽  
Jivaldo do Rosario Matos ◽  
Carlos de Oliveira Paiva-Santos
Keyword(s):  
Thermal Analysis ◽  
Quality Control ◽  
Ir Spectroscopy ◽  
Raw Materials ◽  
X Ray Diffraction ◽  
X Ray ◽  
Drug Products ◽  
Synchrotron Light ◽  
Major Degradation Product

Tibolone is used for hormone reposition of postmenopause women and isotibolone is considered the major degradation product of tibolone. Isotibolone can also be present in tibolone API raw materials due to some inadequate synthesis. Its presence is then necessary to be identified and quantified in the quality control of both API and drug products. In this work we present the indexing of an isotibolone X-ray diffraction pattern measured with synchrotron light (λ=1.2407 Å) in the transmission mode. The characterization of the isotibolone sample by IR spectroscopy, elemental analysis, and thermal analysis are also presented. The isotibolone crystallographic data are a=6.8066 Å, b=20.7350 Å, c=6.4489 Å, β=76.428°, V=884.75 Å3, and space group P21, ρo=1.187 g cm−3, Z=2.

Characterization of Slate Powder Wastes from Minas Gerais - Brazil

2020 ◽  
Vol 848 ◽  
pp. 10-19
Author(s):  
Luciana Boaventura Palhares ◽  
Claudio Gouvêa dos Santos ◽  
Felipe Binda ◽  
Tim Nie Hunter
Keyword(s):  
Thermal Analysis ◽  
Raw Materials ◽  
Minas Gerais ◽  
Complete Characterization ◽  
Building Construction ◽  
Crushed Rock ◽  
Sustainability Criteria ◽  
Powder Samples ◽  
Materials Used

Research and development related to the processing of recycled materials has grown progressively in recent times, as scientists endeavour to integrate sustainability criteria, depletion of natural resources, reducing the energy of technological processes involving extraction and processing of raw materials, etc. When it comes to processing slate, industries have to pass over several steps ranging from the extraction of rock blocks until the final products consisting of plates, leaving behind a considerable amount of waste in the form of a mud composed mainly of water, lubricants and crushed rock. This waste with no defined destination accumulates in yards, reservoirs and streams, affecting the environment. Slate powder has great prospects for recovery, recycling and further applications once it has chemical composition and components similar to raw materials used in ceramic and building construction industries. Therefore, a complete characterization of this powder is important and here we present some results of XRD, SEM, EDS, G3 morphology and thermal analysis of slate powder samples from the southeastern state of Minas Gerais in Brazil.

scholarly journals Fractionation and characterization of lignin streams from unique high-lignin content endocarp feedstocks

2018 ◽  
Vol 11 (1) ◽  
Author(s):  
Wenqi Li ◽  
Kirtley Amos ◽  
Mi Li ◽  
Yunqiao Pu ◽  
Seth Debolt ◽  
...  
Keyword(s):  
Lignin Content ◽  
High Lignin Content

scholarly journals An evaluation of fibrous structure and physical characteristics of Cutia nut (Couepia edulis Prance) shell

2009 ◽  
Vol 39 (4) ◽  
pp. 981-986
Author(s):  
Odílio Benedito Garrido Assis ◽  
José Dalton Cruz Pessoa
Keyword(s):  
Nutritional Value ◽  
Lignin Content ◽  
Raw Material ◽  
Similar Species ◽  
Charcoal Production ◽  
Engineering Material ◽  
Structural Reinforcement ◽  
Regular Shape ◽  
High Lignin Content

The Cutia-nut (Couepia edulis Prance), a species originally from the Amazon region, has a kernel with reasonable nutritional value and a hard and thick woody shell that constitute most of the fruit. After the kernel removal, the shells are regarded as waste. The possibility of using such shells, as raw material for burning or charcoal production, as well as milled residue for structural reinforcement materials is quite feasible, considering environmental and economical aspects. There is, however, a complete lack of characterization of the Cutia-nut shell and other similar species which can aggregate desirable qualities for application as engineering material. In this study some analyses are presented aiming at providing information for potential uses of these residues. In general, the shells follow a regular shape with certain dimensional proportionality to the kernel. The shell is a fibrous material with high lignin content, present low water absorption and high resistance to natural degradation.

Recycling of Edible Oil Pouches: Composition and Thermal Stability

2005 ◽  
Vol 21 (2) ◽  
pp. 117-137 ◽  
Author(s):  
Arup Choudhury ◽  
Mandira Mukherjee ◽  
Basudam Adhikari
Keyword(s):  
Thermal Stability ◽  
Raw Materials ◽  
Value Added ◽  
Edible Oil ◽  
Solvent Fractionation ◽  
Recycled Polyethylene ◽  
Identification And Characterization ◽  
Recycled Polymer ◽  
Value Added Products

Recycled polyethylene containing very small amounts of nylon-6 or PET, which is the source of flexible oil pouches, may find applications as raw materials for other polymer products after the recycled polymer is properly identified and characterized before reprocessing. Proper identification and characterization of the polymer components present in the waste has considerable importance for obtaining value-added products. In this investigation, post-use oil pouch films, collected from municipal garbage, were first subjected to sorting, washing and drying. Then the dried films were fractionated by dissolving in solvents. The isolated component polymers were characterized and identified by solvent fractionation, FTIR, DSC-TGA and WAXD analysis.

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