scholarly journals Strength Performance and Dimensional Stability of Peeled Bamboo - Fiberglass Composite (PBFC) from Buluh Betong

2014 ◽  
Vol 2 (1) ◽  
pp. 16-22
Author(s):  
Mohd Aminuddin Che Haron ◽  
Suhaimi Muhammed ◽  
Abdul Hamid Saleh
Keyword(s):  
Physical Properties ◽  
Water Absorption ◽  
Epoxy Resin ◽  
Dimensional Stability ◽  
Thickness Swelling ◽  
European Standard ◽  
Strength Performance ◽  
Layer Composite ◽  
Mechanical And Physical Properties ◽  
Fiberglass Composite

Bamboo is considered as environmentally and eco-friendly material compared to hardwood and nowadays bamboo veneer is getting very popular in the market. Bamboo veneer is suitable for many modern designs. The alternate layers of veneer bamboo (3 and 5 layers) were combined with fiberglass by using Epoxy resin (2% hardener) as bonding agent to produce PBFC at different pressure. Panels produced were assessed for the mechanical and physical properties such as MOE and MOR, thickness swelling (TS), and water absorption (WA) in accordance with the European Standard. Results revealed that strength performance of board improved with increasing pressure. Thickness swelling and water absorption values were much lower for the 5 layer composite Thus such findings revealed that bamboo veneer from Buluh betong possess great potential for the manufacture of bio-composite products.

scholarly journals Mechanical and physical properties of water hyacinth and cogon grass fiber reinforced epoxy resin composites

2021 ◽  
Vol 2145 (1) ◽  
pp. 012036
Author(s):  
P Kongkaew ◽  
P Praneekrit ◽  
T Rudchapo ◽  
K Khampui
Keyword(s):  
Physical Properties ◽  
Water Absorption ◽  
Epoxy Resin ◽  
Water Hyacinth ◽  
Fracture Behavior ◽  
Hybrid Composites ◽  
Fiber Reinforced ◽  
Surface Fracture ◽  
Strength Tests ◽  
Mechanical And Physical Properties

Abstract In this paper, the study investigates the mechanical and physical properties of water hyacinth and cogon grass fiber reinforced epoxy resin hybrid composites. Hand lay-up technique was used to fabricate the composites. Water absorption, microstructure, tensile properties, flexural properties, and impact strength tests for total fiber contents, 15 wt %, and different water hyacinth and cogon grass fiber ratios (10/0, 8/2, 6/4, 4/6, 2/8, and 0/10) were used to evaluate the investigation’s effects. The addition of water hyacinth and cogon grass fiber into epoxy improves tensile, flexural, and impact properties while decreasing water absorption, according to the findings. Using a scanning electron microscope (SEM), the microstructure of the composites was analyzed, and surface fracture behavior and the void between the fiber and matrix were observed.

The Effects of Alkalization on Mechanical and Physical Properties of Bamboo-Polypropylene Composite

2020 ◽  
Vol 305 ◽  
pp. 3-7
Author(s):  
Mohd Ariff Jamaludin ◽  
Shahril Anuar Bahari ◽  
Mohd Nazarudin Zakaria ◽  
Nurul Aida Shahida Karim
Keyword(s):  
Mechanical Properties ◽  
Physical Properties ◽  
Water Absorption ◽  
Polymer Composites ◽  
Alkali Treatment ◽  
Fiber Content ◽  
Thickness Swelling ◽  
Polypropylene Composite ◽  
Mechanical And Physical Properties ◽  
Bamboo Fibers

In this study, bamboo polymer composites (BPC) reinforced with bamboo fibers were produced and analyzed. The effect of alkalization on the mechanical and physical properties of the composites were determined. Three levels of bamboo fiber content (10%, 20% and 30%) of alkali treated and untreated bamboo fibers were considered. Six replications of each type of test specimens were prepared and investigated under bending, tensile, water absorption and thickness swelling tests. From the results, increase in fiber content and alkali treatment of the fibers improved the mechanical properties of BPC. The value of water absorption (WA) and thickness swelling (TS) increased as the fiber content was increased and also as the fibers were treated. The value of WA and TS of the BPC with treated bamboo fibers were higher than the values for the BPC with untreated bamboo fibers.

scholarly journals Investigation of the use of old railroad ties (Fagus orientalis) and citrus branches (orange tree) in the particleboard industry

BioResources ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. 6984-6992
Author(s):  
Ali Hassanpoor Tichi
Keyword(s):  
Physical Properties ◽  
Water Absorption ◽  
Modulus Of Elasticity ◽  
Internal Bond ◽  
Modulus Of Rupture ◽  
Aspen Wood ◽  
Fire Retardancy ◽  
Thickness Swelling ◽  
Mechanical And Physical Properties ◽  
Four Levels

Effects of two widely available and underutilized lignocellulosic materials on the mechanical and physical properties of particleboards were investigated in this work. The ratio of mixtures lignocellulosic flakes at four levels (100% aspen wood), (50% aspen wood: 25% citrus: 25% old railroad ties), (50% aspen wood: 50% citrus), and (50% aspen wood: 50% old railroad ties), and the percentage of resin in two levels (8 and 12%) were considered as variable factors. The 100% aspen wood (Populus tremula) was mixed as a control board (100% aspen wood). Then the mechanical and physical properties of the samples including modulus of rupture, modulus of elasticity, internal bond, water absorption, and thickness swelling after 2 h and 24 h of immersion (EN 310-319) and fire resistance (ISO 11925-2) were measured. The results showed that with increasing poplar wood in mixtures, modulus of rupture, modulus of elasticity, internal bond increased, while water absorption and thickness swelling decreased. Also, in comparison with the control boards, the boards that were made by mixing 50% poplar and 50% citrus branches with 12% glue had the highest mechanical strength. The results also showed that increasing the amount of old railroad ties chips in mixing caused a significant decrease in the fire retardancy of the boards.

Experimental Investigation on Volume Fraction of Mechanical and Physical Properties of Flax and Bamboo Fibers Reinforced Hybrid Epoxy Composites

2017 ◽  
Vol 25 (3) ◽  
pp. 229-236 ◽  
Author(s):  
S. Sathish ◽  
K. Kumaresan ◽  
L. Prabhu ◽  
N. Vigneshkumar
Keyword(s):  
Physical Properties ◽  
Epoxy Resin ◽  
Volume Fraction ◽  
Hybrid Composites ◽  
Sem Analysis ◽  
Epoxy Composites ◽  
Resin Matrix ◽  
Void Content ◽  
Mechanical And Physical Properties ◽  
Bamboo Fibers

The aim of this paper is to study the effect of volume fraction on mechanical and physical properties such as tensile, flexural, impact, interlaminar shear strength, void content and water absorption of flax and bamboo fibers reinforced hybrid epoxy composites. Flax and bamboo fibers reinforced epoxy resin matrix hybrid composites have been fabricated by compression molding techniques. The hybrid composites were fabricated with different volume fraction of fibers. SEM analysis on the hybrid composite materials was performed to analyze the bonding behavior of materials and internal structure of the fractured surfaces. The effect of chemical treatment of flax and bamboo fibers was verified by FTIR analysis. The results showed that the tensile, impact, flexural and ILSS are maximum for 40:0 (flax: bamboo) hybrid composites. The void content decreased for 20:20 (flax:bamboo) composites due to tightly packed flax fiber and more compatibility towards epoxy resin.

Effect of Firing Temperature on Mechanical and Physical Properties of Porcelain Balls as Grinding Media

2017 ◽  
Vol 888 ◽  
pp. 37-41
Author(s):  
Hasrul Yahya ◽  
Mohd Roslee Othman ◽  
Zainal Arifin Ahmad
Keyword(s):  
Compressive Strength ◽  
Physical Properties ◽  
Water Absorption ◽  
Firing Temperature ◽  
Chemical Resistance ◽  
Firing Process ◽  
X Ray Diffraction ◽  
X Ray ◽  
Grinding Media ◽  
Mechanical And Physical Properties

Porcelain balls as grinding media are produced by firing process of clay, quartz and feldspar mixtures. This application need high technological properties such as high compressive strength and hardness, wear resistance, low water absorption and excellent chemical resistance. These properties are associated with higher firing temperatures. The porcelain balls were prepared by mixing 30 wt.% clay, 40 wt.% feldspar and 30 wt.% quartz. The samples were sintered at 1200°C, 1230°C, 1250°C, 1270°C and 1300°C for 2 hours with heating rate of 3°C/min. Both green powder and fired samples were characterized by X-ray diffraction (XRD), X-ray fluorescence (XRF) and scanning electron microscopy (SEM).The properties of the fired samples were evaluated by compressive strength, hardness, shrinkage, water absorption, bulk density, and porosity measurement. Increasing of compressive strength, hardness and density are associated with increasing of firing temperatures. Porcelain balls PB1 and PB2 can be produced as grinding media with optimum mechanical and physical properties at firing temperature 1270°C and 1250°C, respectively.

Preparation and Dimensional Stability of Organo-Montmorillonite (O-MMT) Treated Unsaturated Polyester Hybrid Composites Filled with Keratin Fiber

2014 ◽  
Vol 980 ◽  
pp. 28-32
Author(s):  
Kiew Kwong Siong ◽  
Soon Kok Heng ◽  
Sinin Hamdan ◽  
Moaz Mohsin ◽  
Akshay Kakar ◽  
...  
Keyword(s):  
Water Absorption ◽  
Dimensional Stability ◽  
Hybrid Composites ◽  
Unsaturated Polyester ◽  
Fiber Content ◽  
High Dimensional ◽  
Thickness Swelling ◽  
Stability Properties ◽  
Chicken Feathers ◽  
Keratin Fiber

O-MMT treated unsaturated polyester based hybrid composites were prepared using keratin fiber obtained from chicken feathers. Fibers of similar dimension were selected to fabricate composites through hand lay-up method. The preparation and dimensional stability properties of keratin fiber as reinforcements in composites is outlined in this paper. Varying O-MMT contents in nancomposites is performed to investigate the effects on the dimensional stability (water absorption and thickness swelling) of the composites. Results indicated that increasing fiber content deteriorates dimensional stability of the composites and composites. However, improvements in dimensional stability of the keratin fibercomposites were observed with O-MMT. O-MMT treatment reduces the water absorption and thickness swelling, especially at 5wt% of O-MMT concentrationat all range of fiber content. At 5wt% concentration of O-MMt, 10wt% keratin fiber content marks the lowest water absorption and thickness swelling with rate of 0.65% and 1.93%, respectively. Adopting 10wt% of keratin fiber at 5wt% of O-MMT can be utilized for application requiring high dimensional stability.

Modelling of Polydomain Smart Materials

1994 ◽  
Vol 360 ◽  
Author(s):  
Yongsik Yu ◽  
Alexander Roytburd
Keyword(s):  
Physical Properties ◽  
Electric Fields ◽  
Smart Materials ◽  
Practical Importance ◽  
Thermodynamic Theory ◽  
Domain Formation ◽  
Domain Structures ◽  
Layer Composite ◽  
Mechanical And Physical Properties

AbstractPolydomain materials with periodic (modulated) domain structures are of potential practical importance since they can possess unique and desirable mechanical and physical properties. A twin related domain formation can be a result of constrained structural, ferroelectric or ferromagnetic transformations. The thermodynamic theory on the deformation of layer composites containing a polydomain (polytwin) ferroelectric component is analyzed. The deformation of the layer composite under different directional electric fields and constraints is calculated.

Effect of Particle Size on Some Properties of Rice Husk Particleboard

2007 ◽  
Vol 18-19 ◽  
pp. 43-48 ◽  
Author(s):  
J.O. Osarenmwinda ◽  
J.C. Nwachukwu
Keyword(s):  
Particle Size ◽  
Physical Properties ◽  
Water Absorption ◽  
Rice Husk ◽  
Modulus Of Elasticity ◽  
Internal Bond ◽  
Elasticity Modulus ◽  
Modulus Of Rupture ◽  
Thickness Swelling ◽  
Effect Of Particle Size

The purpose of this study was to determine the effect of particle size on the mechanical properties (Modulus of Elasticity, Modulus of Rupture, and Internal Bond) and physical properties (thickness swelling and water absorption) of rice husk particleboard. The particle sizes used were 1.0mm, 1.18mm, 2mm, 2.36mm and 2.80mm. Each was mixed with a constant resin (urea formaldehyde) concentration of 20% of oven dry weight of rice husk particles. The results showed that as the particle size increased, the particleboard’s mechanical and physical properties decreased. For example, the modulus of elasticity, modulus of rupture, internal bond, thickness swelling and water absorption for 1.0mm particle size particleboard were 1590N/mm2, 11.11N/mm2, 0.28N/mm2,10.90% and 38.53% respectively, while for 2.8mm particle size they were 1958N/mm2,14.2N/mm2, 0.44N/mm2, 11.51% and 47.21% respectively. Overall results showed that particleboard made from rice husk exceed the EN standard for modulus of elasticity, modulus of rupture, internal bond. However, thickness swelling values were poor. Hence, the smaller the particle size the better the properties of the particleboard.

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