High strength polyethylene fibers from high density polyethylene/organoclay composites

2007 ◽  
Vol 47 (6) ◽  
pp. 943-950 ◽  
Author(s):  
Siripan Chantrasakul ◽  
Taweechai Amornsakchai
Keyword(s):  
High Density Polyethylene ◽  
High Strength ◽  
High Density ◽  
Polyethylene Fibers

scholarly journals Enhanced Water Resistance of Recycled Newspaper/High Density Polyethylene Composite Laminates via Hydrophobic Modification of Newspaper Laminas

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 421
Author(s):  
Binwei Zheng ◽  
Weiwei Zhang ◽  
Litao Guan ◽  
Jin Gu ◽  
Dengyun Tu ◽  
...  
Keyword(s):  
Stearic Acid ◽  
Photoelectron Spectroscopy ◽  
Composite Laminates ◽  
High Density Polyethylene ◽  
Water Resistance ◽  
Laminated Composite ◽  
High Strength ◽  
High Water ◽  
High Density ◽  
X Ray

A high strength recycled newspaper (NP)/high density polyethylene (HDPE) laminated composite was developed using NP laminas as reinforcement and HDPE film as matrix. Herein, NP fiber was modified with stearic acid (SA) to enhance the water resistance of the NP laminas and NP/HDPE composite. The effects of heat treatment and SA concentration on the water resistance and tensile property of NP and composite samples were investigated. The chemical structure of the NP was characterized with X-ray diffractometer, X-ray photoelectron spectroscopy and attenuated total reflectance Fourier transform infrared spectra techniques. The surface and microstructure of the NP sheets were observed by scanning electron microscopy. An expected high-water resistance of NP sheets was achieved due to a chemical bonding that low surface energy SA were grafted onto the modified NP fibers. Results showed that the hydrophobicity of NP increased with increasing the stearic acid concentration. The water resistance of the composite laminates was depended on the hydrophobicity of the NP sheets. The lowest value of 2 h water absorption rate (3.3% ± 0.3%) and thickness swelling rate (2.2% ± 0.4%) of composite were obtained when the SA concentration was 0.15 M. In addition, the introduction of SA can not only enhance the water resistance of the composite laminates, but also reduce the loss of tensile strength in wet conditions, which shows potential in outdoor applications.

Estimating crystallinity in high density polyethylene fibers using online Raman spectroscopy

2003 ◽  
Vol 88 (2) ◽  
pp. 545-549 ◽  
Author(s):  
R. P. Paradkar ◽  
S. S. Sakhalkar ◽  
X. He ◽  
M. S. Ellison
Keyword(s):  
Raman Spectroscopy ◽  
High Density Polyethylene ◽  
High Density ◽  
Polyethylene Fibers

Molecular Orientation of High-Density Polyethylene Fibers Characterized by Polarized Raman Spectroscopy

1995 ◽  
Vol 28 (11) ◽  
pp. 4007-4012 ◽  
Author(s):  
Mario J. Citra ◽  
D. Bruce Chase ◽  
Richard M. Ikeda ◽  
Kenncorwin H. Gardner
Keyword(s):  
Raman Spectroscopy ◽  
High Density Polyethylene ◽  
Molecular Orientation ◽  
High Density ◽  
Polarized Raman Spectroscopy ◽  
Polarized Raman ◽  
Polyethylene Fibers

Microhardness of extruded high density polyethylene fibers

1980 ◽  
Vol 20 (6) ◽  
pp. 393-395 ◽  
Author(s):  
F. J. Baltá-Calleja ◽  
William T. Mead ◽  
Roger S. Porter
Keyword(s):  
High Density Polyethylene ◽  
High Density ◽  
Polyethylene Fibers

scholarly journals Morphological Characterization of Chicken Feather Rachis, Neem Sawdust, and High Density Polyethylene (HDPE) Reinforced Composite Material

2020 ◽  
Vol 44 (6) ◽  
pp. 399-406
Author(s):  
Gayatri Uppalapati ◽  
Srinivasarao Gunji ◽  
Ramakrishna Malkapuram
Keyword(s):  
High Density Polyethylene ◽  
High Strength ◽  
Morphological Characterization ◽  
High Density ◽  
Chicken Feather ◽  
Waste Products ◽  
Single Screw Extruder ◽  
Reinforced Composite ◽  
Made In

In this paper research was expanded on waste that can be recycled. There are so many different types of waste products available in our country that would ruin the environment. Three different products are considered to reduce some of the problems among them two are fibers and the other is polyethylene. Chicken feather rachis and Neem sawdust are the two different fibers and the reinforced material is high density polyethylene (HDPE). These materials are made as seven different compositions to find the ability of the sample in different characterizations. The seven compositions are 80H-10CF-10SD, 80H-5CF-15SD, 80H-15CF-5SD, 80H-20CF, 70H-30CF, 70H-30SD, 80H-20SD, and these compositions are made in CIPET, Hyderabad by using single screw extruder& strand pelletizer. These granules are prepared with the help of Injection moulding, the samples are examined by various testing to prove the ability, strength, structure of materials in individual, and combination forms. The testing conducted for the samples is that the Morphology of the sample was characterized using FESEM, XRD. It is examined that the ratios are light weight with high strength by using the testings and it gives perfect images without any cracks on the surface and no more defects among these ratios.

Investigation of the effects of welding variables on the welding defects of the friction stir welded high density polyethylene sheets

2021 ◽  
pp. 009524432110588
Author(s):  
Mustafa Kemal Bilici
Keyword(s):  
Friction Stir Welding ◽  
High Density Polyethylene ◽  
Welding Process ◽  
High Strength ◽  
High Density ◽  
Welding Parameters ◽  
Friction Stir ◽  
Wide Range ◽  
Welding Defects ◽  
Welding Processes

Modern thermoplastic materials are used in an expanding range of engineering applications, such as in the automotive industry, due to their enhanced stress-to-weight ratios, toughness, a very short time of solidification, and a low thermal conductivity. Recently, friction stir welding has started to be used in joining processes in these areas. There are many factors that affect weld performance and weld quality in friction stir welding (FSW). These factors must be compatible with each other. Due to the large number of welding variables in friction stir welding processes, it is very difficult to achieve high strength FSW joints, high welding performance, and control the welding process. Welding variables that form the basis of friction stir welding; machine parameters, tool variables, and material properties are divided into three main groups. Each welding variable has different effects on the weld joint. In this study, friction stir welds were made on high density polyethylene (HDPE) sheets with factors selected from machine parameters and welding tool variables. Although the welding performance, quality, and strength gave good results in some conditions, successful joints could not be realized in some conditions. In particular, welding defects occurring in the combination of HDPE material with FSW were investigated. Welding quality, defects, and performances were examined with macrostructure. In addition, the tensile strength values of some the joints were determined. The main purpose of this study is to determine the welding defects that occur at the joints. The causes of welding defects, prevention methods, and which weld variables caused were investigated. Welding parameters and welding defects caused by welding tools were examined in detail. In addition, the factors causing welding defects were changed in a wide range and the changes in the defects were observed.

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