scholarly journals Using Rutile TiO2Nanoparticles Reinforcing High Density Polyethylene Resin

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Vu Manh Tuan ◽  
Da Woon Jeong ◽  
Ho Joon Yoon ◽  
SangYong Kang ◽  
Nguyen Vu Giang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Tensile Strength ◽  
High Density Polyethylene ◽  
High Density ◽  
Melt Blending ◽  
Ft Ir ◽  
Blending Process ◽  
Fesem Micrographs ◽  
Ft Ir Spectroscopy

The TiO2nanoparticles were used as a reinforcement to prepare nanocomposites with high density polyethylene (HDPE) by melt blending process. The original TiO2(ORT) was modified by 3-glycidoxypropyltrimethoxysilane (GPMS) to improve the dispersion into HDPE matrix. The FT-IR spectroscopy and FESEM micrographs of modified TiO2(GRT) demonstrated that GPMS successfully grafted with TiO2nanoparticles. The tensile test of HDPE/ORT and HDPE/GRT nanocomposites with various contents of dispersive particles indicated that the tensile strength and Young’s modulus of HDPE/GRT nanocomposites are superior to the values of original HDPE and HDPE/ORT nanocomposites. At 1 wt.% of GRT, the mechanical properties of nanocomposites were optimal. In DSC and TGA analyses, with the presence of GRT in the nanocomposites, the thermal stability significantly increased in comparison with pure HDPE and HDPE/ORT nanocomposites. The better dispersion of GRT in polymer matrix as shown in FESEM images demonstrated the higher mechanical properties of HDPE/GRT nanocomposites to HDPE/ORT nanocomposites.

Mechanical Properties of Selected Types Thermoplastic Materials Modified by High Doses of Ionizing Beta Radiation under Thermal Stress

2017 ◽  
Vol 756 ◽  
pp. 35-43
Author(s):  
Martin Bednarik ◽  
Adam Skrobak ◽  
Vaclav Janostik
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Thermal Stress ◽  
High Density Polyethylene ◽  
Thermal Loading ◽  
Tensile Modulus ◽  
High Density ◽  
Beta Radiation ◽  
Measurement Results ◽  
High Doses

This study deals with the effect of high doses of ionizing beta radiation (132, 165 and 198 kGy) on mechanical properties (tensile strength, tensile modulus and elongation) of low and high density polyethylene under thermal loading. The measurement results of this study indicate that with an increasing dose of radiation grows tensile strength and modulus of low and high density polyethylene. For all examined materials were also observed changes in elongation.

scholarly journals Reinforcing high-density polyethylene by phenolic spheres

2018 ◽  
Vol 238 ◽  
pp. 05003
Author(s):  
Lien Zhu ◽  
Di Wu ◽  
Baolong Wang ◽  
Jing Zhao ◽  
Meihua Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Composite Materials ◽  
Impact Strength ◽  
Rheological Properties ◽  
High Density Polyethylene ◽  
High Density

Phenolic spheres are synthesized through resorcinol and formaldehyde. The phenolic spheres were blended with HDPE to prepare binary composites. The rheological properties and mechanical properties of the composites were studied. The composite materials have higher tensile strength and impact strength than pure HDPE, which extends the application of the material.

Preparation and Properties of PLA/Nano-ZnO Composite

2013 ◽  
Vol 392 ◽  
pp. 41-45 ◽  
Author(s):  
Li Bo Ding ◽  
Jiang Rui ◽  
Jun Tao Li
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Fourier Transform ◽  
Silane Coupling Agent ◽  
Silane Coupling ◽  
Stretching Vibration ◽  
Ft Ir ◽  
Two Peaks ◽  
The Impact ◽  
Ft Ir Spectroscopy

In order to study the impact of nanoZnO on the mechanical properties of PLA, nanoZnO modified with different surface treatment agents (titanium ester NDZ-201,silane coupling agent KH550 ) was added to PLA matrix. The samples were examined by fourier transform infrared (FT-IR) spectroscopy, mechanical properties and SEM. The results show that infrared spectra of nanoZnO modified with different treatment agents include two peaks at 2852cm-1and 2925 cm-1, which are corresponding to C-H stretching vibration, peak at 1735cm-1which is corresponding to NH2, and peak at 964cm-1which is corresponding to P-O-Ti.when the addition of nanoZnO reaches to 1wt.%, the tensile strength of PLA/ZnO nanocomposites have the maximum values of 47.43MPa, increase to 9.64% by pure nanoZnO. The mechanical properties of PLA/ZnO nanocomposites can be improved modified with different treatment agents, and the dispersion of nanoZnO has been significantly improved.

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/Pistachio Shell Flour/Nanoclay Composites - Effect of Accelerated Weathering Conditions on Mechanical Properties, Relative Brightness and Total Colour Change

2017 ◽  
Vol 25 (4) ◽  
pp. 299-308 ◽  
Author(s):  
M.A. Abedini Najafabadi ◽  
S. Nouri Khorasani ◽  
J. Moftakharian Esfahani
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
High Density Polyethylene ◽  
Colour Change ◽  
Tensile Modulus ◽  
High Density ◽  
Accelerated Weathering ◽  
Pistachio Shell ◽  
Relative Brightness ◽  
Xrd Patterns

This study investigates the effect of the addition of nanoclay (Cloisite 20A) on some mechanical properties, % relative brightness (ΔLrel) and total colour change (ΔEab) of high density polyethylene (HDPE)/pistachio shell flour (PSF) composites when exposed to accelerated weathering conditions. X-ray diffraction (XRD) patterns of samples containing 3 and 6 per hundred composite (phc) of nanoclay indicated partial exfoliation and intercalation. The tensile modulus and tensile strength of HDPE/PSF composites (without nanoclay) decreased when the exposure time increased to 1500 h, while the tensile modulus and tensile strength increased. For samples with nanoclay, ΔLrel and ΔEab increased upon accelerated weathering conditions up to 500 h, and thereafter remained constant. But results show that ΔLrel and ΔEab increased significantly upon accelerated weathering exposure in HDPE/PSF samples up to 1500 h. Scanning electron microscopy (SEM) results after 1500 h exposure to weathering condition showed signs of the presence of cracks in samples without nanoclay, unlike the samples with nanoclay.

The Effect of Citric Acid on the Mechanical Properties of Thermoplastic Tapioca Starch/High Density Polyethylene/Natural Rubber Blends

2014 ◽  
Vol 679 ◽  
pp. 292-299
Author(s):  
Mohamad Kahar Ab Wahab ◽  
H. Ismail ◽  
N.Z. Noriman ◽  
H. Kamarudin ◽  
A.M. Mustafa Al Bakri
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Citric Acid ◽  
Natural Rubber ◽  
High Density Polyethylene ◽  
High Density ◽  
Elongation At Break ◽  
Tapioca Starch ◽  
Rubber Blends ◽  
Mechanical And Physical Properties

Effects of citric acid on the mechanical properties of thermoplastic tapioca starch/high density polyethylene/natural rubber (HDPE/NR/TPS) blends were investigated. The ratio between HDPE/NR was fixed at 70/30 and used as a matrix system. TPS loadings with and without modification with citric acid (CA) were varied from 0% to 30wt%. Mechanical and physical properties of blends were evaluated as a function of TPS loadings modified with and without CA. The tensile strength, Young’s modulus and elongation at break were found to decrease with increasing TPS content. However an improvement in the tensile strength for TPS modified with CA at 5%, 10% and 20% TPS loadings was observed. The degree of TPS adhesion and dispersion in HDPE/NR blends were determined by scanning electron microscope (SEM).Keywords; HDPE/NR/TPS, citric acid, tensile properties, morphology.

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.

Recycling of Radiation Crosslinked Polyamide 6

2015 ◽  
Vol 752-753 ◽  
pp. 331-336
Author(s):  
Jan Navratil ◽  
Miroslav Manas ◽  
Michal Stanek ◽  
David Manas ◽  
Martin Bednarik ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Elastic Modulus ◽  
Ultimate Tensile Strength ◽  
Impact Toughness ◽  
High Density Polyethylene ◽  
Polyamide 6 ◽  
High Density ◽  
Material Stiffness ◽  
Plastic Materials

Growing usage of radiation crosslinked plastic materials and utilization of their advantageous properties might raise a question of their future recycling. This paper deals with utilization of recycled irradiated polyamide 6 (rPA6x) which is used as a filler into low and high-density polyethylene (LDPE/HDPE) in concentrations 10 and 30 %. Mechanical properties of such blends were investigated and compared. Both blends show similar trend at all observed material characteristics. Elastic modulus representing material stiffness grown with increasing amount of the filler. Ultimate tensile strength and impact toughness decreased and hardness slightly increased. All the obtained results show that it is possible to use recycled radiation crosslinked PA6 as a filler but it is necessary to count with properties change.

scholarly journals Barrier Properties and Structural Study of Nanocomposite of HDPE/Montmorillonite Modified with Polyvinylalcohol

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
María C. Carrera ◽  
Eleonora Erdmann ◽  
Hugo A. Destéfanis
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Structural Study ◽  
Polymer Matrix ◽  
High Density Polyethylene ◽  
Barrier Properties ◽  
Polymeric Matrix ◽  
Melt Blending ◽  
Clay Layers ◽  
Thermal Stability Of

In this work was studied the permeation of CO2in films of high-density polyethylene (HDPE) and organoclay modified with polyvinylalcohol (MMTHDTMA/PVA) obtained from melt blending. Permeation study showed that the incorporation of the modified organoclay generates a significant effect on the barrier properties of HDPE. When a load of 2 wt% ofMMTHDTMA/PVAwas incorporated in the polymer matrix, the flow of CO2decreased 43.7% compared to pure polyethylene. The results of TEM showed that clay layers were dispersed in the polymeric matrix, obtaining an exfoliated-structure nanocomposite. The thermal stability of nanocomposite was significantly enhanced with respect to the pristine HDPE. DSC results showed that the crystallinity was maintained as the pure polymeric matrix. Consequently, the decrease of permeability was attributable only to the effect of tortuosity generated by the dispersion ofMMTHDTMA/PVA. Notably the mechanical properties remain equal to those of pure polyethylene, but with an increase in barrier properties to CO2. This procedure allows obtaining nanocomposites of HDPE with a good barrier property to CO2which would make it competitive in the use of packaging.

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