Effect of Date Palm Fiber Loadings on the Mechanical Properties of High Density Polyethylene/Date Palm Fiber Composites

2018 ◽  
Vol 773 ◽  
pp. 94-99 ◽  
Author(s):  
Venitalitya Augustia ◽  
Achmad Chafidz ◽  
Lucky Setyaningsih ◽  
Muhammad Rizal ◽  
Mujtahid Kaavessina ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Flexural Strength ◽  
Water Absorption ◽  
High Density Polyethylene ◽  
Date Palm ◽  
Agricultural Waste ◽  
Natural Fibers ◽  
High Density ◽  
Palm Fiber ◽  
Test Result

The trend of using natural fibers as green filler in the fabrication of polymer composites is increasing. One of these natural fibers is date palm fiber (DPF). Date palm fiber is considered as agricultural waste in certain areas, such as Middle East countries. Therefore, the utilization of this fiber in the composites fabrication is an interesting topic of research. In the current study, composites were prepared by melt blending DPF with high density polyethylene (HDPE). Five different DPF loadings were studied (i.e. 0, 5, 10, 20, 30 wt%). The effect of the DPF loadings on the mechanical properties and water absorption behavior of the composites were investigated. The tensile test result showed that tensile strengths of all the composites samples were all higher than the neat HDPE with the maximum improvement was achieved at the DPF loading of 5 wt% (i.e. DFC-5), which was about 19.23 MPa (138% higher than the neat HDPE). Whereas, the flexural test result showed that the flexural strength of the composites slightly increased compared to that of the neat HDPE only until 5 wt% DPF loading (i.e. DFC-5). Afterward, the flexural strength of the DFC-10 was equal to that of the neat HDPE, and decreasing with further increase of DPF loadings. Additionally, the water absorption test result showed that the water absorption rate and uptake of water (at equilibrium) increased with the increase of DPF loading.

Date Palm Fiber Reinforced High Density Polyethylene Composites: Effect of Fiber Loadings on the Melt Rheological Behavior

2018 ◽  
Vol 773 ◽  
pp. 40-45 ◽  
Author(s):  
Achmad Chafidz ◽  
Venitalitya Augustia ◽  
Ariany Zulkania ◽  
Asmanto Subagyo ◽  
Mujtahid Kaavessina ◽  
...  
Keyword(s):  
Rheological Behavior ◽  
High Density Polyethylene ◽  
Date Palm ◽  
Loss Modulus ◽  
Natural Fibers ◽  
Complex Viscosity ◽  
High Density ◽  
Plant Fibers ◽  
Palm Fiber ◽  
Rheological Test

In the recent years, the trend of using renewable source (green) fillers in the composites fabrication is increasing. One of these green fillers is natural fibers, which referred to the plant fibers, such as date palm fiber (DPF). In the present work, high-density polyethylene (HDPE)/DPF composites have been prepared. Four different DPF loadings were used (i.e. 0, 5, 10, 20 wt%) to prepare the composites. The effect of DPF loadings on the melt rheological behavior of the HDPE/DPF composites were studied. The melt rheological test results showed that both of storage modulus (Gʹ) and loss modulus (Gʺ) increased with the increase of DPF loadings. Additionally, the Han plot showed an upward shift from neat HDPE (i.e. DFC-0) to DFC-20, which indicated that the melt rheological properties changed with the increase of DPF loadings. The complex viscosity |h*| of the composites samples also increased with the increase of DPF loadings. The increased was more significant at higher DPF loadings (i.e. DFC-20). Meanwhile, the Carreau-Yasuda model was found to be well fitted with the experimental data.

Effects of PMDI Modified on Physico-Mechanical Properties of Silvergrass Reinforced High Density Polyethylene Composites

2013 ◽  
Vol 750-752 ◽  
pp. 38-42
Author(s):  
Wang Wang Yu ◽  
Juan Li ◽  
Yun Ping Cao
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Flexural Strength ◽  
Water Absorption ◽  
High Density Polyethylene ◽  
High Density ◽  
Hydroxyl Groups ◽  
Wood Plastic Composites ◽  
Plastic Composites ◽  
Methylene Diphenyl Diisocyanate

In this study, the silvergrass (SV) was used to reinforce HDPE composites. The effects of polymeric methylene diphenyl diisocyanate (PMDI) content, slivergrass fibers content on the mechanical, water absortion of wood plastic composites (WPCs) were investigated. It was found that the mechanical properties of the SV reinforced HDPE composites can be improved by PMDI treatment. The highest tensile strength and flexural strength of the composites can be reached with 50% SV contents at the SV: PMDI=6:1. It has been proved that the hydroxyl groups of SV fibers which can react with the-NCO by FTIR. It also can be concluded that the water absorption of PMDI treated WPCs was lower than untreated ones.

Effect of fiber modified by alkali/polyvinyl alcohol coating treatment on properties of sisal fiber plastic composites

2020 ◽  
Vol 39 (23-24) ◽  
pp. 880-889
Author(s):  
Can Hu ◽  
Yueyun Zhou ◽  
Ting Zhang ◽  
Taijun Jiang ◽  
Guangsheng Zeng
Keyword(s):  
Mechanical Properties ◽  
Polyvinyl Alcohol ◽  
Water Absorption ◽  
High Density Polyethylene ◽  
Interfacial Adhesion ◽  
Natural Fibers ◽  
High Density ◽  
Sisal Fiber ◽  
Reinforced Composites ◽  
Plastic Composites

Demand for natural fibers reinforced composites is growing as an alternative to synthetic fiber reinforced plastic composites. However, poor compatibility between natural fiber and matrix has limited its development. Therefore, it is necessary to improve their interfacial adhesion to improve the comprehensive properties of composites. In this work, sisal fibers were subjected to an alkali/polyvinyl alcohol coating treatment by an ultrasonic impregnation method, and the sisal/high-density polyethylene composite was prepared by a twin-screw extruder. The Fourier transform infrared spectroscopy was used to characterize the modification effect of sisal fiber. The surface morphology of sisal fiber and the interfacial morphology of sisal/high-density polyethylene composites were observed. The mechanical properties and water absorption of sisal/ high-density polyethylene composites were also studied. The results show that alkali/polyvinyl alcohol coating compound treatment can effectively improve the interfacial adhesion between sisal fiber and high-density polyethylene, improve the mechanical properties of composite, and reduce water absorption. Alkali/polyvinyl alcohol coating compound treatment is a very environment-friendly, cost-effective fiber modification method when compared with traditional modification methods. It is helpful for the development and application of natural fibers reinforced composites.

Mechanical Properties and Hydrophilicity of High-Density Polyethylene/Attapulgite Composites

2021 ◽  
Vol 1047 ◽  
pp. 3-8
Author(s):  
Zheng Lu Ma ◽  
Jui Chin Chen ◽  
Chi Hui Tsou ◽  
Yan Mei Wang ◽  
Xin Yuan Tian ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Composite Material ◽  
Water Absorption ◽  
High Density Polyethylene ◽  
High Density ◽  
Test Results ◽  
Melt Blending ◽  
The Matrix ◽  
Improvement Effect ◽  
Application Prospects

High-density polyethylene (HDPE) is used as the matrix and attapulgite (ATT) is used as the reinforcing phase. HDPE/ATT nanocomposites are prepared by melt blending. The effect of ATT content on the mechanical properties, water absorption and morphology of HDPE/ATT composites was studied. The results show that adding a small amount of ATT can improve the mechanical properties of HDPE, but excessive addition will reduce the mechanical properties of HDPE. The water absorption and contact angle test results show that as the ATT content increases, the composite material becomes more and more hydrophilic. After joining ATT, the performance of HDPE / ATT composite material has a significant improvement effect, and it is believed that it will have broad application prospects in the future.

High Density Polyethylene/Date Palm Fiber Composites: Effect of Fiber Loadings on the Dynamic Mechanical Thermal Properties

2018 ◽  
Vol 777 ◽  
pp. 22-26
Author(s):  
Achmad Chafidz ◽  
R.M. Faisal ◽  
Lilis Kistriyani ◽  
Ajeng Y.D. Lestari ◽  
Dhoni Hartanto ◽  
...  
Keyword(s):  
Experimental Data ◽  
Thermal Properties ◽  
Storage Modulus ◽  
High Density Polyethylene ◽  
Date Palm ◽  
High Density ◽  
Plant Fibers ◽  
Palm Fiber ◽  
Dynamic Mechanical ◽  
Logarithmic Equation

The increasing environmental issues has resulted in the trend of the use of renewable or natural source (green) fillers in the polymer composites fabrication. Among these green fillers is called natural fibers or plant fibers. One particular plant fibers that became the topic of the present work is date palm fiber (DPF). In the present work, DPF at different loadings (i.e. 0, 5, 10, 20, 30 wt%) were incorporated (as fillers) in the high density polyethylene (HDPE) matrix to fabricate HDPE/DPF composites. Further, we have investigated the effect of DPF loadings on the dynamic mechanical thermal properties of the composites. The dynamic mechanical thermal analysis (DMTA) results exhibited that the storage modulus of the composites increased with increasing DPF loadings. Additionally, all the storage modulus values of the composites were higher than the neat HDPE in all temperature ranges. For example, at temperature of 60°C, the storage modulus enhancement of the composites as compared to the neat HDPE were about 26, 76, 134, and 225% for 5, 10, 20, 30 wt% of DPF loadings, respectively. Additionally, the relationship between the DPF loadings (wt%) and temperature (°C) on the storage modulus of the HDPE/DPF composites was modeled using a logarithmic equation. Based on the data plotting between the experimental data and modeled data, the logarithmic equation was found to be fitted with the experimental data satisfactory.

Some Exploitation Properties of Wood Plastic Composites Based on Recycled High Density Polyethylene and Plywood Production Residues

2017 ◽  
Vol 267 ◽  
pp. 76-81 ◽  
Author(s):  
Janis Kajaks ◽  
Karlis Kalnins ◽  
Anita Zagorska ◽  
Juris Matvejs
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Flexural Strength ◽  
Coupling Agent ◽  
High Density Polyethylene ◽  
Water Resistance ◽  
High Density ◽  
Birch Wood ◽  
Polyethylene Matrix ◽  
Plastic Composites

One type of birch wood plywood by-product: plywood sanding dust (PSD) and recycled high density polyethylene (rHDPE) composites physical mechanical properties (tensile, flexural strength and modulus, impact strength and microhardness), water resistance and fluidity of the composite melts, were evaluated. These studies showed the possibility of the usage of presented by-product as an excellent reinforcement for recycled high density polyethylene matrix. It was observed that the modulus of the tensile for unmodified rHDPE+PSD composites increased up to 2.3 times, the modulus of flexural till 4 times, but the microhardness only 1.4 times. Optimal content of the PSD in recycled high density polyethylene composites could be 50 wt. %. As a coupling agent, the maleated polyethylene (MAPE) for modifying of the rHDPE+50 wt. % PSD composite was used. Due to the MAPE additives, the improvement (30-50 %) of the investigated exploitation properties was observed, but in comparison with unmodified composites the resistance of water increased up to 3.0 times. Optimal content of MAPE in rHDPE+50 wt. % PSD composition could be 3 wt.%.

Effects of MAPE Modified on Physico-Mechanical Properties of Silvergrass Reinforced High Density Polyethylene Composites

2013 ◽  
Vol 423-426 ◽  
pp. 53-57
Author(s):  
Wang Wang Yu ◽  
Cai Hong Li ◽  
Juan Li ◽  
Jian Peng Zhang ◽  
Chang Wei Wang
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Flexural Strength ◽  
Injection Molding ◽  
Differential Scanning Calorimeter ◽  
High Density Polyethylene ◽  
Nucleating Agent ◽  
High Density ◽  
Tensile Fracture ◽  
Sem Images

In this study, silvergrass (SV) reinforced high density polyethylene (HDPE) composites (WPCs) were prepared by injection molding. The effects of maleated polyethylene (MAPE), slivergrass fibers content on the mechanical, Differential scanning calorimeter, morphologies of WPCs were investigated. It was found that the mechanical properties of the SV reinforced HDPE composites can be improved by MAPE treatment. The highest tensile strength and flexural strength of the composites can be reached with 40% and 50% SV contents at the fixed 8% MAPE respectively. The SV can be the nucleating agent with the addition of MAPE. SEM images of tensile fracture surfaces of treated composites demonstrated better fiber-matrix adhesion.

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