scholarly journals Effect of the spin‐line temperature profile on the mechanical properties of melt electrospun polyethylene fibers

2021 ◽  
Vol 138 (28) ◽  
pp. 50668
Author(s):  
Elnaz Shabani ◽  
Russell E. Gorga
Keyword(s):  
Mechanical Properties ◽  
Temperature Profile ◽  
Line Temperature ◽  
Polyethylene Fibers

scholarly journals Obtaining a Flexible Film Elaborated from Cassava Thermoplastic Starch and Polylactic Acid

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Germán A. Arboleda ◽  
Camilo E. Montilla ◽  
Héctor S. Villada ◽  
Giovanni A. Varona
Keyword(s):  
Mechanical Properties ◽  
Temperature Profile ◽  
Polylactic Acid ◽  
Coupling Agent ◽  
Thermoplastic Starch ◽  
Point Of View ◽  
Triple Interaction ◽  
Scanning Calorimetry ◽  
Economic Point ◽  
Flexible Film

A flexible film was obtained from a blend of cassava thermoplastic starch and polylactic acid, using maleic anhydride as coupling agent. For this, an experimental design with three factors was used: polylactic acid content, coupling agent content, and temperature profile of the blown extrusion. It was found that the three factors generated significant differences on the response variables of tensile mechanical properties individually as in their triple interaction. Differential scanning calorimetry (DSC) was used by understanding the behavior of thermal properties of TPS/PLA blends with and without coupling agent, finding similar results between both. From this, the combination with 28% polylactic acid, 0.87% coupling agent, and 155.75°C temperature profile permitted the obtaining of a material with outstanding mechanical properties and offered advantages from the economic point of view.

scholarly journals Thermal properties of polypropylene and high modulus polyethylene fibers reinforced concretes

2020 ◽  
Vol 13 (1) ◽  
pp. 32-38
Author(s):  
J. C. AMARAL JR ◽  
W. G. MORAVIA
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Compressive Strength ◽  
Thermal Expansion ◽  
Thermal Properties ◽  
Construction Industry ◽  
Polymer Fibers ◽  
High Modulus ◽  
Modulus Polyethylene ◽  
Polyethylene Fibers

Abstract Concrete is one of the materials most used by the construction industry. Reinforcing this material with fibers is a technique used to improve its mechanical properties. Steel and polymer fibers are the main types used in this application and there are few studies about the influence of polymer fibers on the thermal properties of concrete. In order to analyze this influence, the present work carried out thermal conductivity, thermal expansion, and compressive strength after exposure to a temperature of 200 °C on specimens made of concrete with addition of polypropylene (PP) fibers and concrete with addition of high modulus polyethylene (HMPE). It was also conducted thermogravimetric analysis (TGA) on PP and HMPE fibers. The results show that the addition of polymer fibers alters the thermal properties of the concrete, reducing its thermal expansion, for example.

Effects of Finite Lengths of Chains on the Structural and Mechanical Properties of Polyethylene Fibers

2019 ◽  
Vol 53 (1) ◽  
pp. 18-28 ◽  
Author(s):  
In-Chul Yeh ◽  
Luigi Balzano ◽  
Harm van der Werff ◽  
Randy A. Mrozek ◽  
Joseph L. Lenhart ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polyethylene Fibers

Residual Solvent Effect on Mechanical Properties of Ultra-High-Molecular-Weight Polyethylene Fibers Produced by Gel Spinning

2020 ◽  
Vol 51 (5) ◽  
pp. 381-383
Author(s):  
A. V. Sokolov ◽  
R. V. Korolev ◽  
K. S. Murikhin ◽  
S. D. Khizhnyak ◽  
V. P. Galitsyn ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Molecular Weight ◽  
Solvent Effect ◽  
High Molecular Weight ◽  
Gel Spinning ◽  
Residual Solvent ◽  
Ultra High Molecular Weight ◽  
Polyethylene Fibers

Local Mechanical Properties of Various Bone Cements

2013 ◽  
Vol 592-593 ◽  
pp. 382-385 ◽  
Author(s):  
Pavol Hvizdoš ◽  
Dagmar Jakubéczyová ◽  
Sergej Hloch ◽  
Ján Kľoc ◽  
Ján Balko ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Temperature Profile ◽  
Elasticity Modulus ◽  
Bone Cements ◽  
Nanoindentation Technique ◽  
Preparation Route

Various bone cements with different compositions were prepared in several model configurations which differed in volume (i.e. setting temperature profile) and mode of mixing (manual and vacuum bowl). Local mechanical properties (nanohardness, elasticity modulus) of all experimental states were measured by nanoindentation technique and compared. Role of the preparation route as well as influence of composition, particularly of presence of antibiotics, on the measured properties was investigated.

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