The space charge decay of high density polyethylene under different temperatures and accumulation fields

2007 ◽  
Author(s):  
S. Mitsumoto ◽  
M. Nagao ◽  
M. Fu ◽  
L.A. Dissado ◽  
J.C. Fothergill
Keyword(s):  
Space Charge ◽  
High Density Polyethylene ◽  
High Density ◽  
Charge Decay ◽  
Different Temperatures

scholarly journals MECHANICAL CHARACTERIZATION OF PA 12 AND HDPE PIPES BEFORE AND AFTER AGING IN WATER AT TWO DIFFERENT TEMPERATURES

2021 ◽  
Vol 9 (1) ◽  
pp. 248-256
Author(s):  
J.A. dos Santos ◽  
R.C. Tucunduva ◽  
J.R.M. D’Almeida
Keyword(s):  
High Density Polyethylene ◽  
Mechanical Performance ◽  
High Density ◽  
Effect Of Temperature ◽  
Polyamide 12 ◽  
Polyethylene Pipes ◽  
Before And After ◽  
Different Temperatures ◽  
Deterioration Process ◽  
Combined Action

Polymer pipes are being widely used by many industrial segments. Although not affected by corrosion, the mechanical performance of these pipes can be reduced due to exposure to temperature, UV radiation and by contact with various fluids. Depending on the deterioration process, embrittlement or plasticization may occur, and the service life of the pipe can be severely reduced. In this work, the combined action of temperature and water upon the mechanical performance of polyamide 12 and high-density polyethylene pipes is evaluated. Destructive and non-destructive techniques were used and the performance of both materials was compared. Both polymers were platicized by the effect of water. However, for high density polyethylene the effect of temperature was more relevant than for polyamide. This behavior was attributed to the dependence of the free volume with the markedly different glass transition temperature of the polymers and the temperatures of testing.

Space charge relaxation in high density polyethylene (HD-PE)

1989 ◽  
Vol 24 (4) ◽  
pp. 1323-1326
Author(s):  
J. Fraile ◽  
A. Torres ◽  
J. Jiménez
Keyword(s):  
Space Charge ◽  
High Density Polyethylene ◽  
High Density ◽  
Charge Relaxation

Space charge relaxation in high density polyethylene (HD-PE)

1989 ◽  
Vol 24 (4) ◽  
pp. 1323-1326 ◽  
Author(s):  
J. Fraile ◽  
A. Torres ◽  
J. Jiménez
Keyword(s):  
Space Charge ◽  
High Density Polyethylene ◽  
High Density ◽  
Charge Relaxation

scholarly journals Rheological and Thermal Behavior of High-Density Polyethylene (HDPE) at Different Temperatures

2014 ◽  
Vol 05 (13) ◽  
pp. 923-931 ◽  
Author(s):  
Cynthia D’Avila Carvalho Erbetta ◽  
Getúlio F. Manoel ◽  
Ana Paula Lelis Rodrigues Oliveira ◽  
Maria Elisa Scarpelli Ribeiro e Silva ◽  
Roberto Fernando Souza Freitas ◽  
...  
Keyword(s):  
Thermal Behavior ◽  
High Density Polyethylene ◽  
High Density ◽  
Different Temperatures

Anomalous TSC and Space Charge in High-Density Polyethylene

1982 ◽  
Vol 21 (Part 1, No. 8) ◽  
pp. 1195-1198 ◽  
Author(s):  
Teruyoshi Mizutani ◽  
Tetsuro Oomura ◽  
Masayuki Ieda
Keyword(s):  
Space Charge ◽  
High Density Polyethylene ◽  
High Density

The effect of ultraviolet irradiation and temperature on the resilience of high density polyethylene

2014 ◽  
Vol 34 (8) ◽  
pp. 727-731
Author(s):  
Naouri Ladaci ◽  
Ahmed Belbah ◽  
Kheirddine Kraim ◽  
Nadia Mebarki
Keyword(s):  
Public Health ◽  
Climate Change ◽  
High Density Polyethylene ◽  
Aging Process ◽  
Irradiation Time ◽  
Accelerated Aging ◽  
High Density ◽  
External Shocks ◽  
Two Factors ◽  
Different Temperatures

Abstract High density polyethylene (HDPE) has recently been established as the material of choice for the distribution and transport of drinking water on economic and public health levels. Because of this, a simulation study was conducted to investigate the effect of aging by two factors on HDPE, in order to check the mechanical robustness of this material with regards to climate change. First, specimens of the material (HDPE80) underwent treatment with irradiation by ultraviolet (UV) radiation for different periods up to 120 h. The accelerated aging process by UV irradiation gave a negative correlation between resilience and the irradiation time in hours. Second, we tested the HDPE80 resilience to different temperatures, at various notch depths (0.4, 0.8, 1, 1.25 and 1.5 mm), to external shocks.

Investigation of Space Charge in High-Density Polyethylene Using Thermal-Pulse Response

1985 ◽  
Vol 24 (Part 1, No. 5) ◽  
pp. 604-609 ◽  
Author(s):  
Yasuo Suzuoki ◽  
Hirotaka Muto ◽  
Teruyoshi Mizutani ◽  
Masayuki Ieda
Keyword(s):  
Space Charge ◽  
High Density Polyethylene ◽  
Pulse Response ◽  
High Density ◽  
Thermal Pulse
Sign in / Sign up

Export Citation Format

Share Document