Results 21 to 30 of about 183,838 (298)

The effects of disinfectant solutions on the viscoelastic properties of acrylic resins

open access: yesCumhuriyet Dental Journal, 2014
Objectives: The aim of this paper was to analysis the effects of disinfectant solutions on polyoxymethylene viscoelastic properties in comparison with polymethyl methacrylate.Materials and Methods: Polymethyl methacrylate and polyoxymethylene acrylic and
Gulsen Can, Perihan Oyar
doaj   +1 more source

Rheological and Viscoelastic Properties of Chitosan Solutions Prepared with Different Chitosan or Acetic Acid Concentrations

open access: yesFoods, 2022
Chitosan (Ch) is a partially crystalline biopolymer, insoluble in pure water but soluble in acid solutions. It has attracted interest from researchers to prepare solutions using different acid types and concentrations.
Paulo José do Amaral Sobral   +6 more
doaj   +1 more source

Segmented block copolymers based on dimerized fatty acids and poly(butylene terephthalate) [PDF]

open access: yes, 1993
Segmented block copolymers based on dimerized fatty acids and poly(butylene terephthalate) (PBT) have been synthesized in the melt. Branched C36, C44 and C70 dimerized fatty acids with a low degree of unsaturation were used.
Gaymans, R.J., Manuel, H.J.
core   +2 more sources

Entropy of water and the temperature-induced stiffening of amyloid networks [PDF]

open access: yes, 2017
In water, networks of semi-flexible fibrils of the protein $\alpha$-synuclein stiffen significantly with increasing temperature. We make plausible that this reversible stiffening is a result of hydrophobic contacts between the fibrils that become more ...
Claessens, Mireille M. A. E.   +5 more
core   +10 more sources

Particle Size in Secondary Particle and Magnetic Response for Carrageenan Magnetic Hydrogels

open access: yesGels, 2019
The relation between the number of magnetic particles and the change in storage modulus induced by a magnetic field was investigated for weak hydrogels containing carbonyl iron, iron oxide, and barium ferrite particles with different diameters in primary
Junko Ikeda   +4 more
doaj   +1 more source

Anelastic relaxor behavior of Pb(Mg1/3Nb2/3)O3 [PDF]

open access: yes, 2013
Elastic storage modulus and loss of relaxor lead magnesium niobate ceramics, Pb(Mg1/3Nb2/3)O3, have been measured with dynamic mechanical analyzer in single cantilever mode in the temperature range from 170 K to 320 K and at frequencies from 0.1 Hz to 50
Damjanovic, Dragan, Ursic, Hana
core   +2 more sources

The “two-step” yielding process of the natural mud under steady and oscillatory shear stress

open access: yesFrontiers in Earth Science, 2022
The rheological properties of natural mud are closely related to nautical depth estimation, wave propagation, and morphology evolution of muddy coast. In this study, the rheological properties of the natural mud collected from Luxi Island and Zhoushan ...
Shaohua Wang   +3 more
doaj   +1 more source

Influence of chilled and frozen storage on the stability of trout and herring fillet [PDF]

open access: yes, 2006
Effects of chilled and frozen storage on specific enthalpy (ΔH) and transition temperature (Td) of protein denaturation as well as on selected functional properties of muscle tissue of rainbow trout and herring were investigated. The Td of myosin shifted
Beyrer, Michael, Rüsch, Mark
core   +2 more sources

Morphology and melt rheology of nylon 11/clay nanocomposites [PDF]

open access: yes, 2006
Nylon 11 (PA11)/clay nanocomposites have been prepared by melt-blending, followed by melt-extrusion through a capillary. Transmission electron microscopy shows that the exfoliated clay morphology is dominant for low nanofiller content, while the ...
Aranda   +32 more
core   +3 more sources

Preparation and enhanced electrorheological properties of elastomers filled with rod-shaped TiO2 particles

open access: yesFrontiers in Materials, 2023
The morphology of dispersed particles has been proven to have a significant impact on performance of electrorheological (ER) materials, while there is a lack of relevant research on its impact on the properties of electrorheological elastomers (EREs). In
Gang Ti   +5 more
doaj   +1 more source

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