An infra-red spectroscopic and X-ray diffraction study of cold-drawn high density polyethylene samples

1976 ◽  
Vol 11 (11) ◽  
pp. 2036-2044 ◽  
Author(s):  
M. A. Mcrae ◽  
W. F. Maddams ◽  
J. E. Preedy
Keyword(s):  
Diffraction Study ◽  
High Density Polyethylene ◽  
High Density ◽  
X Ray Diffraction ◽  
X Ray ◽  
Infra Red

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.

Dynamic x-ray diffraction studies of high-density polyethylene

1983 ◽  
Vol 21 (3) ◽  
pp. 329-352 ◽  
Author(s):  
Robert J. Cembrola ◽  
Thein Kyu ◽  
Richard S. Stein ◽  
Shoji Suehiro ◽  
Hiromichi Kawai
Keyword(s):  
High Density Polyethylene ◽  
High Density ◽  
X Ray Diffraction ◽  
X Ray

Fracture Characterization of High Density Polyethylene/Organoclay Nanocomposites Toughened with SEBS-g-MA

2006 ◽  
Vol 312 ◽  
pp. 187-192 ◽  
Author(s):  
S.P. Bao ◽  
Sie Chin Tjong
Keyword(s):  
Fracture Toughness ◽  
High Density Polyethylene ◽  
High Density ◽  
Infrared Spectrometry ◽  
X Ray Diffraction ◽  
Fracture Characterization ◽  
X Ray ◽  
Melt Compounding ◽  
Work Of Fracture

High density polyethylene (HDPE)/organoclay nanocomposites toughened with maleated styrene-ethylene-butylene-styrene elastomer (SEBS-g-MA) were prepared by melt compounding. The structure and mechanical properties of such nanocomposites were investigated by X-ray diffraction (XRD), Fourier transform infrared spectrometry (FTIR), tensile and impact techiniques. XRD measurements showed that meleic anhydride group of SEBS elastomer was beneficial in forming an intercalated or partially exfoliated structure. The essential work of fracture (EWF) approach under tensile condition was used to characterize the fracture toughness of nanocomposites. The results indicated that the addition of SEBS-g-MA to the HDPE/organoclay nanocomposites greatly enhanced their fracture toughness.

scholarly journals Structures and mechanical properties of talc and carbon black reinforced high density polyethylene composites : Effects of organic and inorganic fillers

2013 ◽  
Vol 37 (1) ◽  
pp. 11-20 ◽  
Author(s):  
Nasrin Parvin ◽  
Md Samir Ullah ◽  
Md Forhad Mina ◽  
Md Abdul Gafur
Keyword(s):  
Mechanical Properties ◽  
Carbon Black ◽  
High Density Polyethylene ◽  
Filler Content ◽  
High Density ◽  
Inorganic Filler ◽  
X Ray Diffraction ◽  
Compression Moulding ◽  
X Ray ◽  
Academy Of Sciences

Organic filler like carbon black (CB) and inorganic filler like talc (T) with 0, 0.5, 1.0, 10, 20 and 40 wt% were separately loaded in high density polyethylene (HDPE) by the extrusion moulding method at 160oC. Then, different sets of filler loaded HDPE composites were prepared using the compression moulding technique, and their structures and mechanical properties were characterized. The pure HDPE sample, as examined by the X-ray diffraction (XRD) technique, showed orthorhombic structure, which did not change either with filler types or with their concentration. The only variations found in the structure are the changes of crystallinity and crystallized size that depend on both types of fillers and their concentrations. Incorporation of CB in HDPE emphasizes the crystallinity and crystallized size more than that of T. The tensile strength of the composite decreases with the increase of both types of fillers, and this decrease is explained on the basis of Nielson model, which basically describes a poor interaction between filler and HDPE matrix. An increase of Young’s modulus of 350% is observed with the increasing CB and T contents, representing an increase of the stiffness in the materials. Flexural strength increased with the increase of CB content but decreased with the increase of talc content. Although the microhardness was observed to increase with both types of fillers, the hardness value was 80% higher for CB loaded-composites than that of T at 40 wt% filler content. These findings strongly indicate that the compatibility of HDPE is better with organic filler than with inorganic one. DOI: http://dx.doi.org/10.3329/jbas.v37i1.15675 Journal of Bangladesh Academy of Sciences, Vol. 37, No. 1, 11-20, 2013

Structure of high‐density amorphous water. I. X‐ray diffraction study

1987 ◽  
Vol 87 (4) ◽  
pp. 2225-2230 ◽  
Author(s):  
A. Bizid ◽  
L. Bosio ◽  
A. Defrain ◽  
M. Oumezzine
Keyword(s):  
Diffraction Study ◽  
High Density ◽  
X Ray Diffraction ◽  
X Ray

scholarly journals Karakterisasi Papan Komposit Berbahan Serbuk Tempurung Kelapa Dan High Density Polyethylene

2017 ◽  
Vol 5 (1) ◽  
Author(s):  
Dinie Rafiqie ◽  
Motlan Motlan
Keyword(s):  
Modulus Of Elasticity ◽  
High Density Polyethylene ◽  
High Density ◽  
Modulus Of Rupture ◽  
X Ray Diffraction ◽  
X Ray

Penelitian ini bertujuan untuk mengetahui papan komposit berbahan serbuk tempurung kelapa dan high density polyethylene yang terbaik sesuai dengan SNI 03-2105-2006 dengan empat perbandingan STK : HDPE (60:40; 55:45; 50:50; 45:55). Metode yang dilakukan adalah dengan merefluks HDPE bersama dengan compatibilizer yaitu Maleat Anhydride dan Benzoyl Peeroxide dengan menambahkan xilene sebagai katalisator untuk mendapatkan HDPE aktif dalam bentuk serbuk dengan suhu 1350C selama 90 menit. Kemudian HDPE aktif dicampur bersama STK dan dicetak di cetakan berukuran 20 cm x 3 cm sesuai dengan SNI 03-2105-2006 selama lebih kurang 1 jam. Selanjutnya dilakukan pengujian mekanik dan pengujian fisis yaitu Modulus of Elasticity (MOE), Modulus of Rupture (MOR), uji impak, densitas, dan porositas. Dari hasil uji MOE, MOR, dan uji impak dihasilkan bahwa papan komposit STK:HDPE dengan perbandingan 45:55 menghasilkan hasil dengan nilai tertinggi yaitu 350,62785 MPa, 14,28483 MPa, dan 6,8 x 10-3 J/cm2. Sementara hasil karakterisasi menggunakan X-Ray Diffraction (XRD) dihasilkan papan komposit STK:HDPE dengan perbandingan 55:45 menghasilkan pola dengan puncak tertinggi sebesar 15,850.Kata Kunci : Papan Komposit, Serbuk Tempurung Kelapa, High Density Polyethylene

Sign in / Sign up

Export Citation Format

Share Document