Results 81 to 90 of about 5,022 (153)
Degradation mechanism, hydrocarbon polymers Final technical report [PDF]
Degradation of hydrocarbon polymers by exposure to 275 F for 400 hours in presence and in absence of ammonium ...
Hamermesh, C. L.
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Applied Sciences, 2016 Pipelines and tubes play important roles in transporting economic liquids, such as water, petroleum derivatives, and crude oil. However, turbulence reduces the initial flow rate at which liquids are pumped, thereby making liquid transportation through ...
Musaab K. Rashed +3 more
doaj +1 more source
Collective dynamics of glass-forming polymers at intermediate length scales
EPJ Web of Conferences, 2015 Motivated by the proposition of a new theoretical ansatz [V.N. Novikov, K.S. Schweizer, A.P. Sokolov, J. Chem. Phys. 138, 164508 (2013)], we have revisited the question of the characterization of the collective response of polyisobutylene at intermediate
Colmenero Juan +2 more
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Sensors, 2018 A Finite Element Method (FEM) simulation study is conducted, aiming to scrutinize the sensitivity of Sezawa wave mode in a multilayer AlN/SiO2/Si Surface Acoustic Wave (SAW) sensor to low concentrations of Volatile Organic Compounds (VOCs), that is ...
Muhammad Zubair Aslam +4 more
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Investigation of space radiation effects in polymeric film-forming materials [PDF]
The literature search in the field of ultraviolet radiation effects that was conducted during the previous program, Contract No. NAS1-12549, has been expanded to include the effects of charged particle radiation and high energy electromagnetic radiation.
Giori, C., Jarke, F., Yamauchi, T.
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Two Simple Approximate Methods of Laplace Transform Inversion for Viscoelastic Stress Analysis [PDF]
, 1961 Two approximate methods of Laplace transform inversion are given which are simple to use and are particularly applicable to stress analysis problems in quasi-static linear viscoelasticity.
Schapery, R. A.
core
Sequestration of Dyes from Water into Poly(α-Olefins) Using Polyisobutylene Sequestering Agents
TechnologiesTrace concentrations of dyes are often present in textile wastewater streams and present a serious environmental problem. Thus, these dyes must be removed from wastewater either by degradation or sequestration prior to discharge of the wastewater into ...
Neil Rosenfeld +3 more
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Scientific ReportsRampant industrialization has led to widespread reliance on hydrocarbon polymers for various commercial applications. While these synthetic polymers, commonly known as plastics, degrade in slowly in the environments, the toxic effects of their micro ...
Abass Toba Anifowoshe +4 more
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Melt fracture of polyisobutylenes
Polymer Testing, 2017 Abstract The processability of different grades of polyisobutylene (PIB) was investigated using a capillary rheometer. Direct focus was given to the occurrence of melt fracture phenomena, such as sharkskin and gross melt fracture (GMF). The influence of molecular weight (MW) of PIB, temperature and die entrance angle on melt fracture was examined in ...
Emmanouil Chatzigiannakis +3 more
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Applied Sciences, 2019 Superior polymers represent a promising alternative to mechanical and biological materials commonly used for manufacturing artificial heart valves.
Evgeny Ovcharenko +12 more
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