Mechanical, thermal, and viscoelastic investigations on expanded perlite–filled high-density polyethylene composite

2018 ◽  
Vol 50 (8) ◽  
pp. 747-761 ◽  
Author(s):  
Metehan Atagür ◽  
Mehmet Sarikanat ◽  
Tuğçe Uysalman ◽  
Ozan Polat ◽  
İffet Yakar Elbeyli ◽  
...  
Keyword(s):  
High Density Polyethylene ◽  
Loss Modulus ◽  
Value Added ◽  
Weight Fraction ◽  
Mechanical Tests ◽  
High Density ◽  
Morphological Properties ◽  
X Ray Diffraction ◽  
Polyethylene Composite ◽  
Value Added Products

Perlite is a glassy amorphous volcanic rock and generally used in construction industries. Possible uses of perlite powder in polymeric composites allow producing value-added products. In this study, expanded Turkish perlite (TP) powder was characterized by particle size distribution and Brunauer–Emmett–Teller analysis. TP-filled high-density polyethylene (HDPE) composites were manufactured via thermokinetic mixer by adding various weight fractions of TP powder (5, 10, 20, and 30 wt%) into HDPE matrix. Produced composites were characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis, dynamic mechanic analysis, X-ray diffraction, and mechanical and thermal conductivity tests. From mechanical tests, it was observed that HDPE + 5% TP exhibited the greatest tensile strength. Flexural strength of the TP-filled HDPE composite was increased with the increasing TP content. Morphological properties of TP-filled HFPE composites were examined by scanning electron microscopy. As the weight fraction of TP was increased, storage modulus and loss modulus of the composites were increased. Moreover, the relaxation peak of HDPE was increased by the incorporation of TP into HDPE.

IMPROVED SOME PROPERTIES OF HIGH DENSITY POLYETHYLENE SYNTHESIS USING FIBER GLASS FOR PIPES AND RESERVOIRS APPLICATIONS

2018 ◽  
Vol 18 (1) ◽  
pp. 146-153
Author(s):  
Najim A Saad ◽  
Ali A Ameer ◽  
Mays S Mahmood
Keyword(s):  
Tensile Strength ◽  
Glass Fiber ◽  
High Density Polyethylene ◽  
Weight Fraction ◽  
Mechanical Tests ◽  
High Density ◽  
Polyethylene Composite ◽  
Glass Fiber Reinforced ◽  
Physical Reaction ◽  
Effect Of Surface

In this paper, the effect of surface modification of short glass fiber on some properties ofhigh-density polyethylene composite was investigated. The chemical treatment of short glassfiber (SGF) with solvent ethanol was achieved, and composites with weight fraction (0.5, 2.5,4wt. %) were fabricated. Mechanical behavior tests include (tensile strength, impact, andhardness tests) and structure test (FTIR) were used. Values of mechanical tests for treatedshort glass fiber – reinforced High density polyethylene composites were much better thanthe neat high density polyethylene. The tensile strength value of composite from (37 to 41MPa), impact strength from (83 J/m² to 100 J/m²), and hardness from (64 to 86 N/m²). Resultof FTIR test showed physical reaction without the formation of new peaks.

A detailed characterization of sandalwood-filled high-density polyethylene composites

2020 ◽  
pp. 089270572093915
Author(s):  
Metehan Atagür ◽  
Nusret Kaya ◽  
Tuğçe Uysalman ◽  
Cenk Durmuşkahya ◽  
Mehmet Sarikanat ◽  
...  
Keyword(s):  
High Density Polyethylene ◽  
High Speed ◽  
Loss Modulus ◽  
Weight Fraction ◽  
Mechanical Analysis ◽  
High Density ◽  
Scanning Calorimetry ◽  
Detailed Characterization ◽  
Three Point Bending

In this study, the performance of sandalwood (SW), as an efficient potential filler material for high-density polyethylene (HDPE), was investigated in detail. Firstly, the characterization of SW was conducted by the determination of chemical composition with chemical and thermal analysis methods. The distribution of SW particles, which were used in composite fabrication, was obtained by using a dynamic light scattering analyzer. Then, the composites of SW, whose weight fractions varied from 5% to 20%, with HDPE were produced in a high-speed thermokinetic mixer. The detailed characterization of composites was made by using thermogravimetric analysis, scanning electron microscopy, X-ray diffraction analysis, differential scanning calorimetry, dynamic mechanical analysis (DMA), Fourier transform infrared, thermal conductivity measurements, and tensile and three-point bending tests. From DMA, storage modulus and loss modulus values of the HDPE matrix increased with increasing the weight fraction of SW. It is clearly seen that SW incorporation into HDPE at weight fractions of 5% and 20% exhibited the best improvement in terms of tensile and flexural strengths, respectively. It can be noted that the reinforcement effect of SW for HDPE is more prominent at high temperatures.

Improvement of the Properties of Polyethylene with Chlorinated Polyethylene (CPE)

2003 ◽  
Vol 11 (2) ◽  
pp. 115-122
Author(s):  
Kálmán Marossy ◽  
Pál Bárczy
Keyword(s):  
High Density Polyethylene ◽  
Industrial Applications ◽  
Mechanical Tests ◽  
High Density ◽  
Structural Units ◽  
Chlorinated Polyethylene ◽  
X Ray ◽  
Dynamic Mechanical ◽  
X Ray Scattering ◽  
Multiphase Systems

Blends of high density polyethylene (HDPE) and chlorinated polyethylene (CPE) have been tested across the whole concentration range. Polyethylene is used to modify the properties of CPE in the elastomer industry, but modification of the properties of polyethylene with CPE is still not usual. Conventional mechanical tests and dynamic mechanical tests were carried out. The blends were found to be multiphase systems of excellent technological compatibility. Between 10 and 15% by weight CPE increased the modulus of polyethylene. X-ray scattering studies showed that the blends contained structural units not present either in the polyethylene or in the CPE. The blends were melt processable and may have industrial applications, too.

Fabrication and characterization of microwave cured high-density polyethylene/carbon nanotube and polypropylene/carbon nanotube composites

2019 ◽  
Vol 53 (15) ◽  
pp. 2091-2104 ◽  
Author(s):  
Gaurav Arora ◽  
Himanshu Pathak ◽  
Sunny Zafar
Keyword(s):  
Carbon Nanotube ◽  
High Density Polyethylene ◽  
High Density ◽  
Uniaxial Tensile ◽  
Uniaxial Tensile Test ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites ◽  
Scanning Electron

Carbon nanotubes have been used as reinforcements in polymers due to their high elasticity, flexibility, and thermal conductivity. In this study, pellets of high-density polyethylene +20 wt% carbon nanotube and polypropylene +20 wt% carbon nanotube were cured using microwave energy. X-ray diffraction, differential scanning calorimetry, thermogravimetric analysis, uniaxial tensile test, and scanning electron microscopy was used to study morphology, thermal stability, and mechanical performance of the microwave-cured composites. X-ray diffraction analysis confirmed the bonding between the polymer and carbon nanotube as the peaks shifted and intensified. From the thermal study, it was observed that melting point of the composites is affected by microwave curing and the crystallinity of high-density polyethylene/carbon nanotube and polypropylene/carbon nanotube changed by 57.67% and 47.28%, respectively. Results of the uniaxial tensile test indicated that Young’s modulus of microwave cured high-density polyethylene/carbon nanotube and polypropylene/carbon nanotube composites were improved by 295% and 787.8%, respectively. Scanning electron microscopic fractography shows the stretching of polymer over-lapped on carbon nanotubes in the direction of the applied load.

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

2012 ◽  
Vol 33 (7) ◽  
pp. 1071-1076 ◽  
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

Stress-Induced Crystal-to-Crystal Transformations in High-Density Polyethylene-Layered Silicate Nanocomposites: A Spectroscopic Study

2005 ◽  
Vol 59 (9) ◽  
pp. 1148-1154 ◽  
Author(s):  
Spiros Tzavalas ◽  
Vasilis G. Gregoriou
Keyword(s):  
High Density Polyethylene ◽  
Mechanical Strain ◽  
Layered Silicate ◽  
High Density ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Polyethylene Matrix ◽  
Dsc Measurements ◽  
Infrared Measurements ◽  
Ft Ir

High-density polyethylene (HDPE)–clay nanocomposites have been prepared using the melt intercalation technique. Organically modified montmorillonite at various loadings (0.5–7%) was used as a nanoadditive. Fourier transform infrared spectroscopy (FT-IR) was utilized for the first time to monitor the stress-induced crystal-to-crystal transformations of the polyethylene matrix with respect to the clay loading as well as to the degree of mechanical strain. In addition, polarized infrared measurements revealed information on both the orientation and the stress-induced distortion of the crystals. It was concluded that the crystal-to-crystal transformations are hindered by the presence of the clay, which also prevented the crystals from orienting even at low clay loadings (1%). Finally, X-ray diffraction (XRD) and differential scanning calorimetry (DSC) measurements confirmed the presence of the stress-induced crystalline structures in agreement with the infrared measurements.

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