Elucidation of Thermal Degradation Model for Low and High Density Polyethylene by Statistical Parameters

2020 ◽  
Vol 5 (44) ◽  
pp. 14153-14160
Author(s):  
Kartik S Iyer ◽  
Hemant K Balsora ◽  
Shubham D Dixit ◽  
Abhishek Sharma ◽  
Prashant Sonar ◽  
...  
Keyword(s):  
Thermal Degradation ◽  
High Density Polyethylene ◽  
High Density ◽  
Statistical Parameters ◽  
Degradation Model

Preparation and Properties of High-Density Polyethylene/Silica Composites

2011 ◽  
Vol 279 ◽  
pp. 115-119 ◽  
Author(s):  
Jing Long Gao ◽  
Yan Hui Liu ◽  
Shou Dong Wei
Keyword(s):  
Mechanical Properties ◽  
Thermal Properties ◽  
Thermal Degradation ◽  
Yield Strength ◽  
Silicon Dioxide ◽  
High Density Polyethylene ◽  
High Density ◽  
Breaking Elongation ◽  
Silica Dioxide ◽  
Silicon Dioxide Content

High-density polyethylene (HDPE)/silica composites with different silicon dioxide fraction were prepared by the melting blend method. The effects of silicon dioxide content on the thermal properties and mechanical properties were mainly investigated. The results show that the thermal degradation of the composites shifts towards higher temperatures as the concentration of silicon dioxide is increased. With increasing silica dioxide content, the tension yield strength of HDPE/silicon composites increased, but its breaking elongation decreased. When silicon dioxide content is 5 %, the tension yield strength and its breaking elongation are 29.33 MPa and 102.82 %, respectively.

scholarly journals Mechanical Properties, Wettability and Thermal Degradation of HDPE/Birch Fiber Composite

Polymers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1459
Author(s):  
Agbelenko Koffi ◽  
Fayçal Mijiyawa ◽  
Demagna Koffi ◽  
Fouad Erchiqui ◽  
Lotfi Toubal
Keyword(s):  
Mechanical Properties ◽  
Differential Scanning Calorimetry ◽  
Thermal Degradation ◽  
Coupling Agent ◽  
High Density Polyethylene ◽  
Fiber Composite ◽  
Flexural Modulus ◽  
High Density ◽  
Wood Fibers ◽  
Scanning Calorimetry

Wood–plastic composites have emerged and represent an alternative to conventional composites reinforced with synthetic carbon fiber or glass fiber–polymer. A wide variety of wood fibers are used in WPCs including birch fiber. Birch is a common hardwood tree that grows in cool areas such as the province of Quebec, Canada. The effect of the filler proportion on the mechanical properties, wettability, and thermal degradation of high-density polyethylene/birch fiber composite was studied. High-density polyethylene, birch fiber and maleic anhydride polyethylene as coupling agent were mixed and pressed to obtain test specimens. Tensile and flexural tests, scanning electron microscopy, dynamic mechanical analysis, differential scanning calorimetry, thermogravimetry analysis and surface energy measurement were carried out. The tensile elastic modulus increased by 210% as the fiber content reached 50% by weight while the flexural modulus increased by 236%. The water droplet contact angle always exceeded 90°, meaning that the material remained hydrophobic. The thermal decomposition mass loss increased proportional with the percentage of fiber, which degraded at a lower temperature than the HDPE did. Both the storage modulus and the loss modulus increased with the proportion of fiber. Based on differential scanning calorimetry, neither the fiber proportion nor the coupling agent proportion affected the material melting temperature.

Thermal degradation of crosslinked high density polyethylene

1999 ◽  
Vol 63 (2) ◽  
pp. 237-243 ◽  
Author(s):  
Seong Ok Han ◽  
Dong Won Lee ◽  
Oc Hee Han
Keyword(s):  
Thermal Degradation ◽  
High Density Polyethylene ◽  
High Density

Study on Thermal Degradation and Kinetic of Microencapsulated Red Phosphorus (MRP)/High Density Polyethylene (HDPE) Composite

2020 ◽  
Vol 842 ◽  
pp. 98-104
Author(s):  
Jia Li ◽  
Hui Wang ◽  
Zhong Han Li ◽  
Ting Ting Zhao ◽  
Tian Tian Wang ◽  
...  
Keyword(s):  
Activation Energy ◽  
Thermal Stability ◽  
Thermal Degradation ◽  
High Density Polyethylene ◽  
Degradation Rate ◽  
Degradation Mechanism ◽  
High Density ◽  
Red Phosphorus ◽  
Heating Rates ◽  
Ikp Method

Thermal degradation of the composite constituted by high density polyethylene (HDPE) and microencapsulated red phosphorus (MRP) were studied using thermogravimetric (TG) data obtained at different heating rates. The kinetic models and parameters of the thermal degradation of MRP/HDPE composite were evaluated by FWO, KAS and IKP method. It indicates that the activation energy E of 4 % MRP/HDPE composite is higher than HDPE for three methods. MRP could improve the thermal stability and slow down the thermal degradation of HDPE. With adding MRP, the degradation mechanism of HDPE is changed and the degradation rate decreases.

Catalytic and thermal degradation of high-density polyethylene in vacuum gas oil over non-acidic and acidic catalysts

2003 ◽  
Vol 242 (1) ◽  
pp. 51-62 ◽  
Author(s):  
Selhan Karagöz ◽  
Jale Yanik ◽  
Suat Uçar ◽  
Mehmet Saglam ◽  
Chunshan Song
Keyword(s):  
Thermal Degradation ◽  
High Density Polyethylene ◽  
High Density ◽  
Vacuum Gas Oil ◽  
Gas Oil ◽  
Acidic Catalysts

Kinetic of thermal degradation of low-density and high-density polyethylene by non-isothermal thermogravimetry

2005 ◽  
Vol 79 (2) ◽  
pp. 393-399 ◽  
Author(s):  
F. S. M. Sinfrônio ◽  
J. C. O. Santos ◽  
L. G. Pereira ◽  
A. G. Souza ◽  
M. M. Conceiçăo ◽  
...  
Keyword(s):  
Thermal Degradation ◽  
High Density Polyethylene ◽  
High Density ◽  
Low Density ◽  
Isothermal Thermogravimetry
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