scholarly journals High Voltage Durability of Bambusa Vulgaris as a Bio-composite Material

2018 ◽  
Vol 8 (5) ◽  
pp. 2643
Author(s):  
M. Y. Mat Zain ◽  
M.T. Ali ◽  
A. N. H. Hussin
Keyword(s):  
Composite Material ◽  
High Voltage ◽  
High Density Polyethylene ◽  
Raw Materials ◽  
Wood Plastic Composite ◽  
Voltage Measurement ◽  
Plastic Composite ◽  
Bambusa Vulgaris ◽  
The Difference ◽  
Maximum Voltage

This study is conducted in order to measure and identify the ability of a bio-composite material to the high voltage. According to it, the developed bio-composite material is tested to ensure the maximum voltage that the material can hold. The bio-composite material which made from a mixture of Bambusa Vulgaris and a selected polymer named as High Density Polyethylene (HDPE). The Bambusa Vulgarisis going through several processes before mixed together with HDPE using wood plastic composite (WPC) technique which also consists of several stages. There are several samples of bio-composite substance are fabricated. The difference among them is the composition of the raw materials (Bambusa Vulgaris and HDPE) used. In this research, the high voltage measurement which also called as breakdown voltage measurement of the bio-composite material is examined by using appropriate experiments. All the experimental results are presented and discussed in this paper.

Influence of Carbon Black on Storage Stability of HDPE-SBS Modified Asphalt

2011 ◽  
Vol 374-377 ◽  
pp. 1409-1413
Author(s):  
Xiao Wei Wu ◽  
Dong Wei Cao ◽  
Hai Yan Zhang
Keyword(s):  
Composite Material ◽  
Carbon Black ◽  
High Density Polyethylene ◽  
Storage Stability ◽  
High Density ◽  
Modified Asphalt ◽  
Stable Mechanism ◽  
The Difference ◽  
Styrene Butadiene ◽  
Sbs Modified Asphalt

In order to avoid the phase separation of the high density-polyethylene modified asphalt, a composite material modifier was prepared in the melt blending process with High density-Polyethylene (HDPE) and Styrene-butadiene-styrene (SBS) and a filler of Carbon black (CB). The storage stability of composite material (HDPE-SBS) modified asphalt was investigated by hot storage stability test and optical microscopic observation. The storage-stable mechanism of HDPE-SBS modified asphalt was analyzed also. The experimental results indicated that the difference of the softening point after storing at high temperature for 48h was very small. Micrographs of HDPE-SBS modified asphalt demonstrated that HDPE-SBS composite modifier particles dispersed uniformly and compactly and there were no obvious phase separations in the modified asphalt within a certain CB content range.

scholarly journals Flexural Creep Behavior of High-Density Polyethylene Lumber and Wood Plastic Composite Lumber Made from Thermally Modified Wood

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 262 ◽  
Author(s):  
Murtada Abass A. Alrubaie ◽  
Roberto A. Lopez-Anido ◽  
Douglas J. Gardner
Keyword(s):  
Creep Behavior ◽  
Creep Deformation ◽  
High Density Polyethylene ◽  
Creep Compliance ◽  
High Density ◽  
Wood Plastic Composite ◽  
Creep Stress ◽  
Plastic Composite ◽  
Thermally Modified Wood ◽  
Modified Wood

The use of wood plastic composite lumber as a structural member material in marine applications is challenging due to the tendency of wood plastic composites (WPCs) to creep and absorb water. A novel patent-pending WPC formulation that combines a thermally modified wood flour (as a cellulosic material) and a high strength styrenic copolymer (high impact polystyrene and styrene maleic anhydride) have been developed with advantageous viscoelastic properties (low initial creep compliance and creep rate) compared with the conventional WPCs. In this study, the creep behavior of the WPC and high-density polyethylene (HDPE) lumber in flexure was characterized and compared. Three sample groupings of WPC and HDPE lumber were subjected to three levels of creep stress; 7.5, 15, and 30% of the ultimate flexural strength (Fb) for a duration of 180 days. Because of the relatively low initial creep compliance of the WPC specimens (five times less) compared with the initial creep compliance of HDPE specimens, the creep deformation of HDPE specimens was six times higher than the creep deformation of WPC specimens at the 30% creep stress level. A Power Law model predicted that the strain (3%) to failure in the HDPE lumber would occur in 1.5 years at 30% Fb flexural stress while the predicted strain (1%) failure for the WPC lumber would occur in 150 years. The findings of this study suggest using the WPC lumber in structural application to replace the HDPE lumber in flexure attributable to the low time-dependent deformation when the applied stress value is withing the linear region of the stress-strain relationship.

An Environmentally Friendly Recycled-Polyethylene Composite Reinforced by Diatomaceous Earth and Wood Fiber

2021 ◽  
Vol 889 ◽  
pp. 15-20
Author(s):  
Yeng Fong Shih ◽  
Wan Ling Tsai ◽  
Saprini Hamdiani
Keyword(s):  
Composite Material ◽  
Diatomaceous Earth ◽  
Wood Fiber ◽  
Raw Material ◽  
Wood Plastic Composite ◽  
Polyethylene Composite ◽  
Plastic Recycling ◽  
Plastic Composite ◽  
Slip Agent ◽  
The Cost

This study aims to develop a new wood-plastic composite (WPC) material from recycled thermoplasctics. The recycled low-density polyethylene (rLDPE) and high-density polyethylene (rHDPE) were used as matrix, whereas the diatomaceous earth waste (D) and wood fiber (WF) as filler. Recycled-LDPE and rHDPE were recovered and pelletized by a plastic recycling process. The 10-30wt.% diatomaceous earth waste was heat-treated at 200°C to remove impurities. The diatomaceous earth, maleic anhydride grafted polyethylene (MAPE), CaCO3, slip agent, antioxidants and WF were then mixed at 160°C, for 10 minutes, at stirring speed 50 rpm to produce wood-plastic composite material. The mechanical strength and thermal properties of the composites were investigated. The composite containing D and rLDPE results in an increase the hardness of the material which is higher than that of the virgin-LDPE. The tensile and impact strengths of the composite material prepared by rLDPE and D were higher than those of the rHDPE composite material. It is found that LDPE has excellent fluidity, which is helpful for subsequent processing. In addition, the diatomaceous earth waste can be used to reduce the cost of the raw material, and the product has both effects of environmental protection and marketability.

Study of Surface Quality and Mechanical Properties of Composite Material Based on Natural Reinforcement

2016 ◽  
Vol 821 ◽  
pp. 471-478
Author(s):  
Zuzana Hutyrová ◽  
Dušan Mitaľ ◽  
Marta Harničárová ◽  
Jozef Zajac ◽  
Jan Valíček
Keyword(s):  
Mechanical Properties ◽  
Composite Material ◽  
Tensile Test ◽  
Surface Quality ◽  
Bending Test ◽  
Wood Plastic Composite ◽  
Radiographic Method ◽  
Plastic Composite

This paper presents problem of the examination of the inhomogeneity of composite material on the base of wood plastic composite. It deals with evaluation of mechanical properties after tensile test and triax-bending test of a composite were assessed in relation to images acquired from radiographic method – metrotomography (using radiographic method which has an explanatory value in terms of evaluation of volume defects and in a figurative sense, also of the conduct of cracks on the surface after machining).

Dynamic Thermal Mechanical Behaviors and Mechanical Properties of Reversible Thermochromism Wood-Plastic Composite

2017 ◽  
Vol 727 ◽  
pp. 571-578
Author(s):  
Yue Qin Wen ◽  
Ying Ying Sun ◽  
Jian Feng Xu ◽  
Jing Bing Chen ◽  
Xin Xiang Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Bending Strength ◽  
Color Change ◽  
Loss Modulus ◽  
Wood Plastic Composite ◽  
Advantages And Disadvantages ◽  
Plastic Composite ◽  
Before And After ◽  
The Difference ◽  
Reversible Thermochromism

To prepare a late-model and functional wood-plastic composite (WPC), the reversible thermochromism crystal violet lactone microcapsule was prepared by situ polymerization, then fabricated reversible thermochromism WPC by microcapsule and low density polyethylene with Maleic anhydride grafted polyethylene. Comparing the L, a and b data of apparent color of reversible thermochromism WPC, the value of chromatism (ΔE) showed the difference of heating before and after, it was also measured to characterize the color-change level; the mechanical properties of ordinary WPC and reversible thermochromism WPC were measured respectively to compare the advantages and disadvantages of two kinds of WPC; Then the storage modulus and loss modulus of ordinary WPC and reversible thermochromism WPC were determined to distinguish the good from the bad of two kinds of composites. The results indicated that the reversible thermochromism WPC is a functional composite with noticeable color-changed effects, and tensile strength, bending strength and interface compatibility were better than ordinary WPC, but had worse impact property contrarily.

The effect of clay organophilization on wood plastic composite (WPC) based on recycled high density polyethylene (HDPE) and coir fiber

2021 ◽  
pp. 147776062110194
Author(s):  
Mário B S Nunes ◽  
Ana Flávia F Farias ◽  
Eliton S Medeiros ◽  
Juliano E Oliveira ◽  
Ieda M G Santos ◽  
...  
Keyword(s):  
Raw Materials ◽  
Interplanar Distance ◽  
Coir Fiber ◽  
Wood Plastic Composite ◽  
X Ray ◽  
Plastic Composite ◽  
Reinforcing Fillers ◽  
Dimethyl Ammonium ◽  
Organophilic Clay ◽  
Internal Mixer

One way to optimize composite mechanical properties is through hybridization with small amounts of reinforcing fillers. Thus, this study investigates the effect of incorporation of 3 wt% of clay (BT) and organoclay (OBT) on the properties of a recycled wood plastic composite (WPC) based on HDPE and 20 wt% of coir fiber compounded with 5 wt% of maleic anhydride-grafted polypropylene (PP-g-MA), as coupling agent, and 5 wt% of Struktol TPW 113, as lubricating agent. Raw materials were characterized by X-ray fluorescence (XRF), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and thermogravimetric analysis (TGA). Coir fiber was characterized by optical microscopy and TGA. Wood plastic formulations (with clay and organoclay) were prepared in an internal mixer coupled to a torque rheometer operating at 190°C, 60 rpm for 10 min. Then, the mixtures were compression molded. Formulations were characterized by SEM, TGA, DSC, tensile and water absorption tests. FTIR analysis showed the characteristic bands of organophilic clay. XRD showed an increment in the interplanar distance of the clay, after the incorporation of quaternary ammonium salt (distearyl dimethyl ammonium chloride, Praepagen® WB), confirming the organoclay formation. Organophilization decreases the clay hydrophilic character and reduces the water uptake of WPC-BT. Despite the fact that BT incorporation led to WPC nanocomposite with intercalated structure, this WPC-clay composition did not show a significant increase in tensile strength and elongation at break. The poor interfacial adhesion between the raw materials and the polymer matrix, the low aspect ratio provided by coir fibers and also, the partially intercalated structure of composites have contributed to this behavior.

Sandwiched Wood-Plastic Composites with Flame-Retardant Skin

2010 ◽  
Vol 150-151 ◽  
pp. 358-361
Author(s):  
Wen Lei ◽  
Hong Ming Ma ◽  
Yi Xu
Keyword(s):  
Mechanical Properties ◽  
Flame Retardancy ◽  
High Density Polyethylene ◽  
Oxygen Index ◽  
Wood Flour ◽  
Wood Plastic Composite ◽  
Wood Plastic Composites ◽  
The Core ◽  
Plastic Composite ◽  
Plastic Composites

In order to improve the flame retardancy of wood-plastic composites,a new sandwiched composite is introduced in this paper with basic magnesium sulfated whisker(MOS) filled high density polyethylene(HDPE) as skin and wood flour filled HDPE as core.The oxygen index of the skin and the mechanical properties of the whole sandwiched composite are investigated. The results show that, the flame retardancy of the skin will be improved siginicantly when much MOS is used,and the skin containing 40wt% MOS has an oxygen index of 25.6%,in addition,the sandwiched composite in which both the mass contents of MOS in the skin and wood flour in the core are 40% has better mechanical properties than the traditional wood plastic composite(WPC) without any skin,and the sandwiched WPC is more fatigue-resistant.

Tensile and Impact Properties Evaluation for Enviro-Recycled Wood Plastic Composite of PP/r-WF

2011 ◽  
Vol 52-54 ◽  
pp. 2082-2087 ◽  
Author(s):  
Jeefferie Abd Razak ◽  
A.R. Toibah ◽  
M.Yaakob Yuhazri ◽  
Bin Abd Rashid Mohd Warikh ◽  
Nooririnah Binti Omar ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Structural Engineering ◽  
Applied Load ◽  
Raw Materials ◽  
Wood Flour ◽  
Impact Behavior ◽  
Wood Plastic Composite ◽  
Structural Application ◽  
Plastic Composite ◽  
Environmental Friendly

The potential of recycled wood flour (r-WF) addition to the thermoplastics polypropylene (PP) matrix for the composites in structural application is evaluated. The effects of different r-WF loading to the tensile and impact mechanical structural properties are analyzed. Two types of polypropylene resin which are the virgin and the recycled resin and recycled wood flour as reinforcement materials are utilized as raw materials in the composites fabrication. Various mechanical testing was conducted in accordance to ASTM standard, to study the behavior of the composites mechanical properties to the applied load. The best compounding formulation of enviro-recycled composite was found at 60wt% of PP matrix and 40wt% of the wood flour addition for both of virgin and recycle matrix. Overall experimental results showed that, the increasing of r-WF loading had significantly increased the mechanical properties of produced composite which is suitable to be applied in the application of structural engineering, through the advantage of mechanical properties performance in tensile and impact behavior. Conclusively, this finding is hoped to lead for contribution in the development of newly advanced material that is environmental friendly for the use of structural application.

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