Effect of process parameters and raw material characteristics on physical and mechanical properties of wood pellets made from sugar maple particles

2015 ◽  
Vol 80 ◽  
pp. 338-349 ◽  
Author(s):  
Quy Nam Nguyen ◽  
Alain Cloutier ◽  
Alexis Achim ◽  
Tatjana Stevanovic
Keyword(s):  
Mechanical Properties ◽  
Process Parameters ◽  
Sugar Maple ◽  
Physical And Mechanical Properties ◽  
Raw Material ◽  
Wood Pellets ◽  
Material Characteristics

The Effect of Lithium Alumina Silicate Phases on Elastic Modulus of Porcelain Tiles

2014 ◽  
Vol 92 ◽  
pp. 188-193 ◽  
Author(s):  
Tuna Aydin ◽  
Alpagut Kara
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Liquid Phase ◽  
Bulk Density ◽  
Bending Strength ◽  
Physical And Mechanical Properties ◽  
Raw Material ◽  
Closed Porosity ◽  
Low Viscosity ◽  
Porcelain Tiles

Spodumene, which is a lithium alumina silicate, has been used as a raw material in the production of thermal shock resistant whitewares and sanitarywares. The presence of spodumene results in enhancement of mullitization and imparts better physical and mechanical properties to ceramics. In this study, the influence of Lithium alumina silicate phases on the mechanical properties of standard porcelain stoneware body was investigated. Especially solid-solid reactions were observed between spodumene and quartz or spodumene and clay. These solid-solid reactions bring about a newly formed lithium alumina silicate (LAS) phases. Spodumene allows the development of a low viscosity liquid phase and results in a decrease in closed porosity, also with increase in bulk density, bending strength and elastic modulus.

HDPE- Coir composites–fabrication, process parameters and properties

2018 ◽  
Vol 2 (3) ◽  
Author(s):  
Md. Sahadat Hossain 3 ◽  
Md. Nazrul Islam 1* ◽  
M A Gafur 2
Keyword(s):  
Mechanical Properties ◽  
Process Parameters ◽  
Mechanical Stability ◽  
Heating Temperature ◽  
Testing Machine ◽  
Physical And Mechanical Properties ◽  
Interfacial Bonding ◽  
Coir Fiber ◽  
Melt Mixing ◽  
Fiber Addition

The composites of biodegradable high density polypropylene (HDPE) reinforced with short coir fiber were prepared by melt mixing followed by hot press molding. The effect of fiber addition on some physical and mechanical properties was evaluated. Different process parameters (e.g. mixing time, heating temperature and time, cooling time etc.) were established for good sample preparation The effects of fiber addition on some physical and mechanical properties were evaluated. The mechanical properties were studied via Universal Testing Machine (UTM). The density was increased with the increase of fiber addition. The tensile strength (TS) of fabricated product increased with the increase of fiber addition up to 10% (by wt.) and then decreased continuously. The elongation of fabricated composites was decreased with the increase of fiber addition continuously. The changes in the mechanical properties were broadly related to the accompanying interfacial bonding of HDPE coir composites (HDPECC). To observe the hydrophilicity of the prepared composites was evaluated by the water uptake properties. The interfacial bonding of the fiber and matrix of the coir fiber reinforced composites was studied via scanning electron microscope. It revealed that the introduction of short coir fiber led to a slightly improved mechanical stability of PP- Coir composites. 

scholarly journals Spherical crystallization of drugs

2012 ◽  
Vol 62 (1) ◽  
pp. 1-14 ◽  
Author(s):  
Borut Kovačič ◽  
Franc Vrečer ◽  
Odon Planinšek
Keyword(s):  
Mechanical Properties ◽  
Process Parameters ◽  
Physical And Mechanical Properties ◽  
Spherical Particles ◽  
Direct Compression ◽  
Solvent Diffusion ◽  
Spherical Crystallization ◽  
Stirring Rate ◽  
Diffusion Systems ◽  
Rate Type

Spherical crystallization of drugs Spherical crystallization of drugs is the process of obtaining larger particles by agglomeration during crystallization. The most common techniques used to obtain such particles are spherical agglomeration and quasi-emulsion solvent diffusion. Ammonia diffusion systems and crystallo-co-agglomeration are extensions of these techniques. By controlling process parameters during crystallization, such as temperature, stirring rate, type and amount of solvents, or excipient selection, it is possible to control the formation of agglomerates and obtain spherical particles of the desired size, porosity, or hardness. Researchers have reported that the particles produced have improved micromeritic, physical, and mechanical properties, which make them suitable for direct compression. In some cases, when additional excipients are incorporated during spherical crystallization, biopharmaceutical parameters including the bioavailability of drugs can also be tailored.

scholarly journals Analysis Physical and Mechanical Of Particle Boards Raw Materials Nipah Fruit Fiber

Teknomekanik ◽  
2019 ◽  
Vol 2 (1) ◽  
pp. 14-19
Author(s):  
M Saddikin ◽  
Hendri Nurdin ◽  
Primawati Primawati
Keyword(s):  
Mechanical Properties ◽  
Moisture Content ◽  
Raw Materials ◽  
Physical And Mechanical Properties ◽  
Average Density ◽  
Raw Material ◽  
Average Moisture Content ◽  
Particle Board ◽  
Wood Particles ◽  
Tapioca Flour

The raw materials of the timber industry, especially furniture, are increasingly difficult to obtain in the quantity and quality needed. The development efforts carried out were utilizing Nipah coir waste as a raw material for making particle boards. Particle boards are panel boards made of wood particles or materials containing lignocellulose. Nipah plants contain 27.3% lignin and 36.5% cellulose which has the potential to be used as raw material for particleboard production. This study aims to reveal the physical and mechanical properties of particleboards made from Nipah fruit fibre with adhesive using tapioca flour. The making of particle board is done with a ratio of 90%: 10%, 80%: 20%, 70%: 30%, 60%: 40%, by giving a pressure of 100 kg / cm2. Particle testing is carried out according to the JIS A 5908 standard (2003). From this study, the optimum results were obtained in variations of 60%:40%. The particle physical properties which have an average density value of 1.15 gr / cm3 and an average moisture content of 5.8%. While the mechanical properties obtained by the value of Modulus of Elasticity an average of 21,188.93 kg / cm2. This shows the particle board variations of 60%: 40% produced to meet the JIS A 5908 (2003) standard. Based on the analysis of the quality variations 60%: 40% of particle boards can be recommended as raw materials for interior furniture.

scholarly journals Synthesis and Properties of Electroconductive Polymeric Composite Material Based on Polypyrrole

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
N. S. Ilicheva ◽  
N. K. Kitaeva ◽  
V. R. Duflot ◽  
V. I. Kabanova
Keyword(s):  
Mechanical Properties ◽  
Composite Material ◽  
Mechanical Strength ◽  
Process Parameters ◽  
Physical And Mechanical Properties ◽  
Polymeric Composite ◽  
Polymeric Composite Material ◽  
Elastic Composite ◽  
The Relationship

A technique is proposed for obtaining electroconductive, mechanically strong, and elastic composite material based on polypyrrole and hydrophilized polyethylene. The relationship is established between the process parameters and properties of the composite material such as electroconductivity and mechanical strength. Several methods are considered in the view of increasing electroconductivity of the material. Physical and mechanical properties of the composite material are investigated.

scholarly journals Estudo da produção de pavers para pisos intertravados utilizando resíduos de blocos de concreto

2021 ◽  
Vol 42 (1) ◽  
pp. 21
Author(s):  
Vasni Oliveira da Silva Junior ◽  
Victor Mateus Pavão ◽  
André Camacho Pontremolez ◽  
Bruno de Medeiros Costa ◽  
Gerson Cendes Saragosa ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Precast Concrete ◽  
Physical And Mechanical Properties ◽  
Raw Material ◽  
Technical Knowledge ◽  
Concrete Blocks

This work presents part of a study whose main objective is to observe the behavior of the physical and mechanical properties of the materials (raw material) and of products made for the civil construction from the precast concrete industry, such as concrete blocks and pavers for interlocking floors. Through the investigation, was identified the potential of using the concrete blocks waste of the production as aggregates added to the concretes utilized to produce pavers. Thus, it is expected that this work contributes as a basis for obtaining scientific and technical knowledge regarding the materials and procedures that must be adopted for the manufacture of pavers, allowing their production for commercialization.

scholarly journals Willow wood (Salix alba) as a raw material for pulp production

2005 ◽  
Vol 59 (7-8) ◽  
pp. 175-179
Author(s):  
Bojana Klasnja ◽  
Sasa Orlovic ◽  
Nenad Radosavljevic ◽  
Miroslav Markovic
Keyword(s):  
Mechanical Properties ◽  
Chemical Composition ◽  
Populus Deltoides ◽  
Chemical Properties ◽  
Physical And Mechanical Properties ◽  
Raw Material ◽  
Poplar Wood ◽  
Salix Alba ◽  
Pulp Production ◽  
Sulphate Pulp

The properties of willow wood (structural-physical and mechanical properties and chemical composition) were investigated to determine the parameters of the technological process of semichemical and sulphate pulp manufacture. The experimental material was willow wood Salix alba cl. 107/65/7. Semichemical and sulphate pulp were obtained in the laboratory. The yield, chemical properties and physical-mechanical properties of the obtained intermediate products intended for paper manufacture, were determined. The properties of poplar wood Populus deltoides Bartr. cl.725, were studied and its pulp production performed with the aim of comparison.

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