Results 21 to 30 of about 27,543,308 (166)
Validation of the poke-flow technique combined with simulations of fluid flow for determining viscosities in samples with small volumes and high viscosities [PDF]
Atmospheric Measurement Techniques, 2015 Viscosity in particles consisting of secondary organic material (SOM) has recently become an area of research focus, since information on viscosity is needed to predict the environmental impacts of SOM particles. Recently Renbaum-Wolff et al.
J. W. Grayson +3 more
doaj +1 more source
Lamellar thickness and stretching temperature dependency of cavitation in semicrystalline polymers. [PDF]
PLoS ONE, 2014 Polybutene-1 (PB-1), a typical semicrystalline polymer, in its stable form I shows a peculiar temperature dependent strain-whitening behavior when being stretched at temperatures in between room temperature and melting temperature of the crystallites ...
Yaotao Wang +4 more
doaj +1 more source
Computational Predictions for Boger Fluids and Circular Contraction Flow under Various Aspect Ratios
Fluids, 2020 This work puts forward a modeling study contrasted against experimental, with focus on abrupt circular contraction flow of two highly-elastic constant shear-viscosity Boger fluids, i.e., a polyacrylamide dissolved in corn-syrup PAA/CS (Fluid-1) and a ...
J. Esteban López-Aguilar +1 more
doaj +1 more source
Natural weathering of polybutene-1
, 2022 Diplomová práce je zaměřena na projevy degradace materiálů homopolymerů polybutenu-1, jenž byly vystaveny povětrnostním vlivům. Změny ve struktuře byly analyzovány metodou DSC a spektroskopicky.
Mudříková, Hana
core +1 more source
Chinese Journal of Polymer Science, 2018 In this work, the crystallization of immiscible polypropylene (PP)/polybutene-1 (PB) blends, in particular the effect of crystal morphology of PP (HTC, high Tm component) on the subsequent crystallization behavior of PB (LTC, low Tm component) was studied.
Yao Xu +3 more
openaire +2 more sources
Polypropylene and Polybutene-1 Blends
, 2023 Tato diplomová práce se zabývá vlivem množství polybutenu-1 přidaného do polypropylenu na mechanické, zpracovatelské a optické vlastnosti směsí. Připravené směsi byly také charakterizovány pomocí diferenciální skenovací kalorimetrie a širokoúhlé ...
Rumpová, Daniela
core +1 more source
The Influence of Polymer Additives on the Phase Transformation of Isotactic Polybutene -1
, 2021 Bakalářská práce se soustředí na studium vlivu polymerních příměsí na rychlost fázového přechodu isotaktického polybutenu-1 z nestabilní fáze II do stabilní fáze I. V obecném zájmu je, aby čas přechodu byl co nejkratší.
Srb, Václav
core +1 more source
Journal of Spectroscopy, 2015 The chemical environment of Cu2+ ions adsorbed in tannin-formaldehyde resins of Acacia mearnsii bark extracts, prepared from polybutene, is investigated by EPR spectroscopy at 300 K. The spectrum is simulated considering two isolated axial Cu(II) species
Marcelo H. Herbst, Ney V. Vugman
doaj +1 more source
Chemical modification of polybutene-1 resins through reactive processing [PDF]
, 2019 A commodity polybutene-1 (PB-1) resin has been chemically modified through reactive processing. Samples produced by using various amounts of peroxide have been analyzed in terms of their molecular and rheological properties.
Zatloukal, Martin +2 more
core +2 more sources
Biofuels, Bioproducts and Biorefining, EarlyView.Abstract Oxidation of furfural (FF), a bio‐based platform chemical, was investigated using a range of iron‐, vanadium‐ and iron–zinc‐oxalates supported on silica gel (FeVOx@silica and FeZnOx@silica, respectively) as precursor for FeV@silica and FeZn@silica oxide catalysts and H2O2 as a green oxidant.
Alexander Pokutsa +2 more
wiley +1 more source