Effect of Weathering on the Mechanical Properties of HDPE/Rice Straw Composite

2016 ◽  
Vol 860 ◽  
pp. 69-72 ◽  
Author(s):  
Yehia M.S. El Shazly ◽  
Mohamed H. El Nemr ◽  
Ashraf A. Mubarak ◽  
Mohamed H. Zaki
Keyword(s):  
Mechanical Properties ◽  
Rice Straw ◽  
High Density Polyethylene ◽  
High Density ◽  
Wood Plastic Composite ◽  
Plastic Composite ◽  
Polyethylene Wax ◽  
Straw Composite

In recent years, Wood Plastic Composite (WPC) has found widespread applications in the field of construction, decoration and furniture. In this work, the effect of weathering on the mechanical properties of WPC made from high density polyethylene (HDPE) and rice straw particles (RS) has been studied. Different loading of composite (20, 35 and 50% RS) were tested. Polyethylene wax (PE-wax) and UV-stabilizer were also added to assess their effect on the WPC composite.

Mechanical Properties and Thermal Conductivity of Coal Ash-Recycled High-Density Polyethylene Composite

2018 ◽  
Vol 06 (01n02) ◽  
pp. 1850002
Author(s):  
Ban M. Alshabander ◽  
Awattif A. Mohammed ◽  
Asmaa Sh. Khalil
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
High Density Polyethylene ◽  
Waste Product ◽  
Construction Materials ◽  
Coal Ash ◽  
High Density ◽  
Plastic Composite ◽  
The Impact ◽  
Recycled Hdpe

In this study, coal ash/recycled plastic composite material was fabricated with post-consumer high-density polyethylene (HDPE) and coal ash particles. The main idea of using coal ash, since it is also a waste product, as reinforcing filler in recycled HDPE is to reduce the cost, develop lightweight and produce environmental-friendly materials. Coal ash/recycled plastic composite have been used in significant applications as construction materials including flooring, landscaping, fencing, railing window framing and roof tiles. Effect of coal ash loading on the mechanical properties and thermal conductivity of coal ash/recycled HDPE composite were determined. It is expected to use waste materials in new field by getting novel composite materials with developed mechanical properties. It was found that coal ash filler indicated significant improvement on the mechanical properties of composites. The results show that the impact decreased tremendously from 57.32 to 15.8[Formula: see text]kJ/m2 with only 30[Formula: see text]wt.% loading of coal ash. The filler increases the elasticity of the material and reduces its ability to absorb deformation energy.

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.

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.

Flame retardancy and mechanical properties of thermal plastic composite panels made from Tetra Pak waste and high-density polyethylene

2014 ◽  
Vol 37 (6) ◽  
pp. 1797-1804 ◽  
Author(s):  
Changyan Xu ◽  
Weicheng Jian ◽  
Cheng Xing ◽  
Handong Zhou ◽  
Yuqing Zhao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Flame Retardancy ◽  
High Density Polyethylene ◽  
High Density ◽  
Composite Panels ◽  
Plastic Composite ◽  
Tetra Pak

scholarly journals Pemanfaatan Container Menjadi Ruang Isolasi Apung Sebagai Alternatif Bagi Pasien Covid-19

Syntax Idea ◽  
2021 ◽  
Vol 3 (2) ◽  
pp. 383
Author(s):  
Siti Dwi Lazuardi ◽  
Akhdan Muhammad Muaz ◽  
Dina Fatimatuz Zahroh ◽  
Altalariq Pranantha Yudha Airlangga ◽  
Afyfah Ramadhani Dias Saputri
Keyword(s):  
High Density Polyethylene ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
High Density ◽  
Cost Ratio ◽  
Wood Plastic Composite ◽  
Benefit Analysis ◽  
Benefit Cost Ratio ◽  
Plastic Composite ◽  
Benefit Cost

Kasus COVID-19 hingga saat ini terus mengalami peningkatan, terlalu banyaknya pasien yang membutuhkan perawatan intensif mengakibatkan rumah sakit mengalami kondisi overloaded capacity. Dalam rangka meminimalisir adanya pasien rawat mandiri dan berisiko adanya cluster keluarga, maka pemanfaatan container menjadi ruang isolasi apung sebagai alternatif bagi masyarakat untuk mendapat penanganan intensif COVID-19. Pemanfaatan container bekas 20 feet dipadukan dengan alas untuk mengapung berbahan HDPE (High-Density Polyethylene) dan alas pijakan WPC (Wood Plastic Composite). Dalam mempertimbangkan besaran biaya serta mengukur keoptimalan dari manfaat penelitian, maka penilitian ini menggunakan metode CBA (Cost-Benefit Analysis) dan metode BCR (Benefit Cost Ratio) untuk menguji kelayakan dari penelitian ini. Hasil penelitian menunjukan bahwa pemanfaatan container bekas menjadi ruang isolasi apung termasuk dalam kategori baik, dimana penelitian ini dapat menekan angka pasien isolasi mandiri sebesar 35% dan hasil perhitungan manfaat memiliki rasio sebesar 1,02 dan menghasilkan nilai NPV positif dengan batasan kelayakan yaitu BCR > 1, dan NPV > 1. Dari hasil penelitian tersebut, dapat disimpulkan bahwa, ruang isolasi apung ini layak untuk direalisasikan atau dioperasikan.

scholarly journals Effects of Extractives on Dimensional Stability, Dynamic Mechanical Properties, Creep, and Stress Relaxation of Rice Straw/High-Density Polyethylene Composites

Polymers ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1176 ◽  
Author(s):  
Huanbo Wang ◽  
Fazhi Lin ◽  
Pingping Qiu ◽  
Tian Liu
Keyword(s):  
Mechanical Properties ◽  
Thermal Expansion ◽  
Stress Relaxation ◽  
Rice Straw ◽  
Dimensional Stability ◽  
High Density Polyethylene ◽  
Dynamic Mechanical Properties ◽  
High Density ◽  
Dynamic Mechanical ◽  
Creep And Stress Relaxation

The removal of rice straw extractives increases the interphase adhesion between rice straw and the high-density polyethylene (HDPE) matrix, while eradicating the inner defects of rice straw/HDPE composites. This study investigated the effect of rice straw extractives removal on the dimensional stability (water uptake and thermal expansion), dynamic mechanical properties, creep, and stress relaxation of rice straw/HDPE composites. Cold water (CW), hot water (HW), and 1% alkaline solution (AL) extraction methods were utilized to remove rice straw extractives. Extracted and unextracted rice straws were mixed with HDPE, maleated polyethylene (MAPE), and Polyethylene wax to prepare composites via extrusion. Removal of rice straw extractives significantly improved the dimensional stability, dynamic mechanical properties, and creep and stress relaxation of rice straw/HDPE composites, with the exception of the thickness swelling of the AL/HDPE and the thermal expansion of the rice straw/HDPE composites. HW/HDPE exhibited the best comprehensive performance.

scholarly journals Effective Adsorptive Removal of Methylene Blue from Water Using Wood- Plastic Composite Containing High Density Polyethylene and Wood Particles

2021 ◽  
Author(s):  
Zahra Ranjbarha ◽  
Javad Mokhtari Aliabad ◽  
Parviz Aberoomand-Azar ◽  
Seyed Amin Mirmohammadi ◽  
Mohammad Saber-Tehrani
Keyword(s):  
Methylene Blue ◽  
High Density Polyethylene ◽  
Textile Industry ◽  
Contact Time ◽  
Cost Effective ◽  
Homogeneous System ◽  
High Density ◽  
Wood Plastic Composite ◽  
Plastic Composite ◽  
Adsorbent Surface

Abstract In this study, the ability to remove methylene blue cation pigment using wood-plastic composite containing high density polyethylene and wood powder as a recycled material was studied. The effect of some important parameters such as pH, adsorbent amount and contact time were investigated. Adsorption efficiencies for methylene blue was maximized at alkaline pH. Adsorption capacity increased with increasing adsorbent amount and contact time. The value of R2 in Langmuir model was equal to 1 and the separation factor for 0.5 and 1 g of adsorbent were 0.09 and 0.1, respectively. Given that the methylene blue adsorption data were more consistent with the Langmuir isotherm model, it can be stated that the wood-plastic composite probably has uniform adsorption surfaces and the adsorption process occurred in homogeneous system on the adsorbent surface. Based on the results of this study, it was observed that this composite is a suitable adsorbent for removing methylene blue from aqueous solutions and used as a purifying agent in the decolorization of effluents containing pigments. This adsorbent is recyclable and is cost-effective to remove dye from textile industry wastewater.

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