Treatment with orthophosphoric acid enhances the thermal stability of the piezoelectricity in low-density polyethylene ferroelectrets

2012 ◽  
Vol 111 (12) ◽  
pp. 124105 ◽  
Author(s):  
Dmitry Rychkov ◽  
Ruy Alberto Pisani Altafim ◽  
Xunlin Qiu ◽  
Reimund Gerhard
Keyword(s):  
Thermal Stability ◽  
Orthophosphoric Acid ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Thermal Stability Of

Thermal Stability of Gamma Irradiated Low Density Polyethylene Films Containing Hindered Amine Stabilizers

2004 ◽  
Vol 289 (6) ◽  
pp. 524-530 ◽  
Author(s):  
Traian Zaharescu ◽  
Mustapha Kaci ◽  
Ghania Hebal ◽  
Radu Setnescu ◽  
Tanta Setnescu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Polyethylene Films ◽  
Gamma Irradiated ◽  
Thermal Stability Of

scholarly journals Influence of High-Concentration LLDPE on the Manufacturing Process and Morphology of Pitch/LLDPE Fibres

Crystals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1099
Author(s):  
Salem Mohammed Aldosari ◽  
Muhammad A. Khan ◽  
Sameer Rahatekar
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Tensile Modulus ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
High Concentration ◽  
Scanning Electron Microscope Study ◽  
High Concentrations ◽  
Thermal Stability Of

A high modulus of elasticity is a distinctive feature of carbon fibres produced from mesophase pitch. In this work, we expand our previous study of pitch/linear low-density polyethylene blend fibres, increasing the concentration of the linear low-density polyethylene in the blend into the range of from 30 to 90 wt%. A scanning electron microscope study showed two distinct phases in the fibres: one linear low-density polyethylene, and the other pitch fibre. Unique morphologies of the blend were observed. They ranged from continuous microfibres of pitch embedded in linear low-density polyethylene (occurring at high concentrations of pitch) to a discontinuous region showing the presence of spherical pitch nodules (at high concentrations of linear low-density polyethylene). The corresponding mechanical properties—such as tensile strength, tensile modulus, and strain at failure—of different concentrations of linear low-density polyethylene in the pitch fibre were measured and are reported here. Thermogravimetric analysis was used to investigate how the increased linear low-density polyethylene content affected the thermal stability of linear low-density polyethylene/pitch fibres. It is shown that selecting appropriate linear low-density polyethylene concentrations is required, depending on the requirement of thermal stability and mechanical properties of the fibres. Our study offers new and useful guidance to the scientific community to help select the appropriate combinations of linear low-density polyethylene/pitch blend concentrations based on the required mechanical property and thermal stability of the fibres.

Retarded Cross-linking in ZnO-low-density Polyethylene Nanocomposites

2002 ◽  
Vol 17 (5) ◽  
pp. 940-943 ◽  
Author(s):  
J.I. Hong ◽  
K. S. Cho ◽  
C. I. Chung ◽  
L. S. Schadler ◽  
R. W. Siegel
Keyword(s):  
Thermal Stability ◽  
Thermal Properties ◽  
Thermal Degradation ◽  
Surface Properties ◽  
Zno Nanoparticles ◽  
Low Density Polyethylene ◽  
Cross Linking ◽  
Low Density ◽  
Zno Particles ◽  
Thermal Stability Of

ZnO nanoparticles were mixed with branched low-density polyethylene and were found to increase the resistance of the polymer to thermal degradation without changing other thermal properties. Submicron-size ZnO particles were mixed with low-density polyethylene for comparison, and it was found that the increased thermal stability of the nanocomposite was due to the surface properties of nanoparticles smaller than approximately 100 nm in diameter.

Thermal degradation of coir fiber reinforced low-density polyethylene composites

2018 ◽  
Vol 25 (2) ◽  
pp. 363-372 ◽  
Author(s):  
Nirupama Prasad ◽  
Vijay Kumar Agarwal ◽  
Shishir Sinha
Keyword(s):  
Thermal Stability ◽  
Thermal Degradation ◽  
Fiber Surface ◽  
Fiber Composites ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Coir Fiber ◽  
Untreated Fiber ◽  
Ldpe Composites ◽  
Thermal Stability Of

AbstractIn the present study, the effect of fiber surface treatments (alkali and acrylic acid) on the thermal degradation behavior of coir fiber (CF)-low-density polyethylene (LDPE) composites with or without compatibilizer (maleic anhydride grafted LDPE, MA-g-LDPE) using thermogravimetric and derivative thermogravimetric analyses (TG/DTG) was analyzed and compared with those of untreated fiber composites. The TG/DTG results revealed that the thermal stability of the CF improved after the chemical treatments. However, the composite containing treated fiber showed lower thermal stability and started to degrade at a faster rate above 380°C in comparison to composites containing untreated fiber composites. Furthermore, the addition of MA-g-LDPE led to improvement in the thermal stability of both treated and untreated fiber composites in comparison to the same composite formulation without MA-g-LDPE. The composite containing untreated fiber and MA-g-LDPE demonstrated superior thermal stability among all the formulated composites, indicating strong fiber-matrix adhesion.

Study on the thermal stability of stabilized and unstabilized low-density polyethylene films

2020 ◽  
Author(s):  
Meriam Imane Babaghayou ◽  
Abdel-Hamid Ismail Mourad ◽  
Almudena Ochoa ◽  
Freddys Beltrán ◽  
Nizamudeen Cherupurakal
Keyword(s):  
Thermal Stability ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Polyethylene Films ◽  
Thermal Stability Of

Preparing and Applying of Flame Retardant Microcapsules Containing Magnesium Hydroxide

2013 ◽  
Vol 734-737 ◽  
pp. 2191-2194
Author(s):  
Li Li Wu ◽  
Yuan Lian ◽  
Dan Liu ◽  
Hua Zheng ◽  
Dian Wu Huang
Keyword(s):  
Thermal Stability ◽  
Flame Retardant ◽  
Magnesium Hydroxide ◽  
Low Density Polyethylene ◽  
Core Shell ◽  
Low Density ◽  
Melamine Resin ◽  
Shell Material ◽  
Elongation At Break ◽  
Good Thermal Stability

In this study, flame retardant microcapsules were synthesized using magnesium hydroxide as core materials, melamine resin as the shell material. The structure, diameters and thermal properties of prepared microcapsules were investigated by using FTIR, ELS, DSC and TGA. The effects of core/shell ratio on the properties of microcapsules were studied.Flame retardant materials of low-density polyethylene/magnesium hydroxide microcapsules were prepared.The tensile strength and elongation at break tests were performed to determine its mechanical property.Inflammability of the materials was also studied.The results showed the prepared magnesium hydroxide microcapsule shows good thermal stability and it has free compatibility with the polymer.The composites of HDPE/MH microcapsules have good performance．

scholarly journals Kinetic analysis of thermal stability of human low‐density lipoproteins: A model for LDL fusion in atherogenesis

2013 ◽  
Vol 27 (S1) ◽  
Author(s):  
Mengxiao Lu ◽  
Shobini Jayaraman ◽  
Donald L Gantz ◽  
Haya Herscovitz ◽  
Olga Gursky
Keyword(s):  
Thermal Stability ◽  
Kinetic Analysis ◽  
Low Density Lipoproteins ◽  
Low Density ◽  
Thermal Stability Of
Sign in / Sign up

Export Citation Format

Share Document