Effect of various chemical modifications of date palm fibers (DPFs) on the thermo-physical properties of polyvinyl chloride (PVC)–high-density polyethylene (HDPE) composites

To expand the use of wood plastic composites in the structural and engineering constructions applications, continuous aramid fiber (CAF) with nondestructive modification was incorporated as reinforcement material into wood-flour and high-density-polyethylene composites (WPC) by extrusion method with a special die. CAF was treated with dopamine (DPA), vinyl triethoxysilane (VTES), and DPA/VTES, respectively. The effects of these modifications on compatibility between CAF and WPCs and the properties of the resulting composites were explored. The results showed that compared with the original CAF, the adhesion strength of DPA and VTES combined modified CAF and WPCs increased by 143%. Meanwhile, compared with pure WPCs, CAF after modification increased the tensile strength, tensile modulus, and impact strength of the resulting composites by 198, 92, and 283%, respectively.

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An Experimental Study on the Properties of Recycled High-Density Polyethylene

International Polymer Processing ◽

10.1515/ipp-2020-4071 ◽

2021 ◽

Vol 36 (5) ◽

pp. 557-563

Author(s):

A. G. Toroslu

Keyword(s):

Physical Properties ◽

High Density Polyethylene ◽

Iron Alloy ◽

High Density ◽

Magnetic Method ◽

Metallic Materials ◽

Metallic Material ◽

Alloy Particles ◽

Plastic Materials ◽

Mechanical And Physical Properties

Abstract Recycling of plastic materials has become more environmentally important than recycling of other materials. The most important problem during recycling is the presence of oil, dirt, dust and metal particles that are mixed with plastic materials. These mixtures can change their its mechanical and physical properties and it is quite costly to remove them completely. Removing iron alloy particles from plastic is possible by using the magnetic method. However, removing non-metallic materials requires extra processing. In this study, the use of recycled High-Density Polyethylene (rHDPE) without an expensive cleaning processes has been investigated. Different amounts of aluminium oxide (Al2O3) were added to High Density Polyethylene (HDPE) to simulate the effect of non-metallic material involved. The effect of these contamination rates on the mechanical and physical properties of HDPE was examined in detail. For this purpose, recyclable materials were produced by mixing rHDPE with 1%, to 7% Al2O3 . The results show that up to 7% of the mixture has acceptable effects on the properties of HDPE. When the results of the experiments are examined, it is observed that there is a 3.74% change in the elastic modulus of the material. This means, that up to 7% non-metal contaminated rHDPE material can be used without any costly recycling process.

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Influence of additives on some physical properties of high density polyethylene-II. commercial u.v. stabilizers

European Polymer Journal ◽

10.1016/0014-3057(87)90184-4 ◽

1987 ◽

Vol 23 (9) ◽

pp. 729-732 ◽

Cited By ~ 5

Author(s):

Alfonso J. Chirinos Padrón ◽

Zimbul Rubinztain ◽

Maria A. Colmenares

Keyword(s):

Physical Properties ◽

High Density Polyethylene ◽

High Density

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Effects of conductive graphite filler loading on physical properties of high-density polyethylene composite

Polymer Composites ◽

10.1002/pc.22230 ◽

2012 ◽

Vol 33 (7) ◽

pp. 1071-1076 ◽

Cited By ~ 19

Author(s):

I. Tavman ◽

I. Krupa ◽

M. Omastova ◽

M. Sarikanat ◽

I. Novak ◽

...

Keyword(s):

Physical Properties ◽

High Density Polyethylene ◽

Filler Loading ◽

High Density ◽

Polyethylene Composite

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

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.773.94 ◽

2018 ◽

Vol 773 ◽

pp. 94-99 ◽

Cited By ~ 1

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.

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Physical Properties of High Density Polyethylene by High Shear Stress

Kobunshi Kagaku ◽

10.1295/koron1944.28.864 ◽

1971 ◽

Vol 28 (319) ◽

pp. 864-868,938 ◽

Cited By ~ 4

Author(s):

Youichi Kinoshita ◽

Hirakazu Nakamura ◽

Makoto Takakura ◽

Haruo Morimoto ◽

Takao Kasuga ◽

...

Keyword(s):

Shear Stress ◽

Physical Properties ◽

High Density Polyethylene ◽

High Density ◽

High Shear ◽

High Shear Stress

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The mechanical and physical properties of compressed earth block stabilized with lime and filled with untreated and alkali-treated date palm fibers

Construction and Building Materials ◽

10.1016/j.conbuildmat.2015.12.007 ◽

2016 ◽

Vol 104 ◽

pp. 52-62 ◽

Cited By ~ 37

Author(s):

Bachir Taallah ◽

Abdelhamid Guettala

Keyword(s):

Physical Properties ◽

Date Palm ◽

Date Palm Fibers ◽

Mechanical And Physical Properties ◽

Compressed Earth Block ◽

Earth Block

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

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.773.40 ◽

2018 ◽

Vol 773 ◽

pp. 40-45 ◽

Cited By ~ 1

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.

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