Detailed examination of high-density polyethylene in the conditions of nonlinear creep and stress relaxation

1985 ◽  
Vol 21 (2) ◽  
pp. 117-123 ◽  
Author(s):  
A. F. Kregers ◽  
M. R. Kilevits
Keyword(s):  
Stress Relaxation ◽  
High Density Polyethylene ◽  
Detailed Examination ◽  
High Density ◽  
Nonlinear Creep ◽  
Creep And Stress Relaxation

scholarly journals Effects of Extractives on Dimensional Stability, Dynamic Mechanical Properties, Creep, and Stress Relaxation of Rice Straw/High-Density Polyethylene Composites

Polymers ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1176 ◽  
Author(s):  
Huanbo Wang ◽  
Fazhi Lin ◽  
Pingping Qiu ◽  
Tian Liu
Keyword(s):  
Mechanical Properties ◽  
Thermal Expansion ◽  
Stress Relaxation ◽  
Rice Straw ◽  
Dimensional Stability ◽  
High Density Polyethylene ◽  
Dynamic Mechanical Properties ◽  
High Density ◽  
Dynamic Mechanical ◽  
Creep And Stress Relaxation

The removal of rice straw extractives increases the interphase adhesion between rice straw and the high-density polyethylene (HDPE) matrix, while eradicating the inner defects of rice straw/HDPE composites. This study investigated the effect of rice straw extractives removal on the dimensional stability (water uptake and thermal expansion), dynamic mechanical properties, creep, and stress relaxation of rice straw/HDPE composites. Cold water (CW), hot water (HW), and 1% alkaline solution (AL) extraction methods were utilized to remove rice straw extractives. Extracted and unextracted rice straws were mixed with HDPE, maleated polyethylene (MAPE), and Polyethylene wax to prepare composites via extrusion. Removal of rice straw extractives significantly improved the dimensional stability, dynamic mechanical properties, and creep and stress relaxation of rice straw/HDPE composites, with the exception of the thickness swelling of the AL/HDPE and the thermal expansion of the rice straw/HDPE composites. HW/HDPE exhibited the best comprehensive performance.

scholarly journals Stress Relaxation in High Density Polyethylene. Effects of Orientation and Gamma Radiation

1999 ◽  
Vol 31 (12) ◽  
pp. 1194-1199 ◽  
Author(s):  
Vladimir Djoković ◽  
Dušan Kostoski ◽  
Miroslav D Dramićanin ◽  
Edin Suljovrujić
Keyword(s):  
Stress Relaxation ◽  
Gamma Radiation ◽  
High Density Polyethylene ◽  
High Density

Dynamic viscoelasticity and stress relaxation of column‐fractionated high density polyethylene melts (abstract)

1991 ◽  
Vol 35 (4) ◽  
pp. 702-702
Author(s):  
Katsuyuki Yoshikawa ◽  
Nobuhiro Toneaki ◽  
Yoshihiro Moteki ◽  
Masaoki Takahashi ◽  
Toshiro Masuda
Keyword(s):  
Stress Relaxation ◽  
High Density Polyethylene ◽  
High Density ◽  
Dynamic Viscoelasticity ◽  
Polyethylene Melts

Nonlinear creep in high-density polyethylene under time-dependent stresses

1975 ◽  
Vol 9 (5) ◽  
pp. 704-709
Author(s):  
A. F. Kregers ◽  
U. K. Vilks ◽  
M. Ya. Leitane
Keyword(s):  
High Density Polyethylene ◽  
High Density ◽  
Time Dependent ◽  
Nonlinear Creep

Dynamic viscoelasticity, stress relaxation, and elongational flow behavior of high density polyethylene melts (abstract)

1991 ◽  
Vol 35 (4) ◽  
pp. 701-701 ◽  
Author(s):  
Katsuyuki Yoshikawa ◽  
Nobuhiro Toneaki ◽  
Yoshihiro Moteki ◽  
Masaoki Takahashi ◽  
Toshiro Masuda
Keyword(s):  
Stress Relaxation ◽  
High Density Polyethylene ◽  
Flow Behavior ◽  
Elongational Flow ◽  
High Density ◽  
Dynamic Viscoelasticity ◽  
Polyethylene Melts

Stress relaxation performance of glass fiber-reinforced high-density polyethylene composite

2020 ◽  
pp. 096739112093206
Author(s):  
Usman Saeed ◽  
Hamad Al-Turaif ◽  
Muhammad Ehtisham Siddiqui
Keyword(s):  
Stress Relaxation ◽  
Glass Fiber ◽  
Analytical Model ◽  
High Density Polyethylene ◽  
Interfacial Shear Stress ◽  
Stress Transfer ◽  
High Density ◽  
Shear Lag ◽  
Polyethylene Composite ◽  
Lag Model

The article presents a study about the stress relaxation by means of time-sensitive interfacial shear stress transfer between the interface of the fiber and matrix. The behavior of stress relaxation of glass fiber (GF)-reinforced high-density polyethylene (HDPE) composites is measured experimentally and then compared with Cox shear-lag analytical model predictions. Furthermore, the effect of supplemented interfacial interaction between the interface of the fiber and matrix is analyzed by the introduction of an interfacial coupling agent called Fusabond M603. In addition, the results showed that the stress relaxation behavior of GF-reinforced HDPE composite can be predicted by using a Cox shear-lag model. On examination, the experimental data and analytical model showed a favorable correlation which can be useful for future applications of the intended products made of polymer-based composites.

Investigation of the Relaxation Mechanical Properties of Nanocomposites Based on High-Density Polyethylene

2018 ◽  
Vol 45 (3) ◽  
pp. 91-96
Author(s):  
N.S. Dikanova ◽  
A.V. Matseevich ◽  
O.V. Kovriga ◽  
A.A. Askadskii ◽  
T.P. Kravchenko ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Stress Relaxation ◽  
Specific Surface ◽  
Relaxation Process ◽  
High Density Polyethylene ◽  
High Density ◽  
Entire Period ◽  
Reinforcing Effect ◽  
Low Concentration ◽  
Multiwall Nanotubes

The effect of nanotubes and nanofibres on the stress relaxation of nanocomposites based on high-density polyethylene (HDPE) was studied. It was found that a very low concentration of multiwall nanotubes (0.1 wt%) leads to a significant increase in the relaxing stresses over the entire period of relaxation. Generalised curves of the relaxation process were plotted, and it was found that the greatest reinforcing effect is rendered by the multiwall nanotubes with the greatest specific surface.

scholarly journals Dynamic Viscoelasticity, Stress Relaxation and Elongational Flow Behavior of High Density Polyethylene Melts

1990 ◽  
Vol 18 (2) ◽  
pp. 80-86 ◽  
Author(s):  
Katsuyuki YOSHIKAWA ◽  
Nobuhiro TONEAKI ◽  
Yoshihiro MOTEKI ◽  
Masaoki TAKAHASHI ◽  
Toshiro MASUDA
Keyword(s):  
Stress Relaxation ◽  
High Density Polyethylene ◽  
Flow Behavior ◽  
Elongational Flow ◽  
High Density ◽  
Dynamic Viscoelasticity ◽  
Polyethylene Melts
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