Results 21 to 30 of about 2,329 (225)
An improved method for the high isotacticity measurement of polybutene-1
High isotactic polybutene-1 (HiPB) plays important roles in presenting outstanding resistance to creep and crack at high temperature. Therefore, rapid and accurate measurement of the HiPB is extremely important for both synthesis and application of ...
Weiping Zheng+4 more
doaj
A robust method for calculating interface curvature and normal vectors using an extracted local level set [PDF]
The level-set method is a popular interface tracking method in two-phase flow simulations. An often-cited reason for using it is that the method naturally handles topological changes in the interface, e.g.
Ervik, Åsmund+2 more
core +3 more sources
Computational Predictions for Boger Fluids and Circular Contraction Flow under Various Aspect Ratios
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
The Stability of Viscosity of Polybutenes and Polybutene-Mineral Oil Mixtures
In order to obtain the data of the stability of high viscosity standard oils, the variation of viscosity with age was measured by means of a caoillary master viscometer for nolybutenes having viscosities of 55, 340, and 1010 poises at 25°C, and for polybutene-mineral oil mixtures having viscosities of 20, 100, and 540 poises at 25°C.The results ...
Masuhiro Onoyama+3 more
openaire +2 more sources
Interlocking shish‐kebab morphology in polybutene‐1 [PDF]
AbstractThe aim of this research was to explore the effect of shear‐controlled orientation injection molding (SCORIM) on polybutene‐1 (PB‐1). This article describes the methods and processing conditions used for injection molding and discusses the properties of the moldings.
Kalay G., Kalay, C.R.
openaire +4 more sources
The creep resistance of polymer determines the dimensional stability of product under stress. The isotactic polybutene-1 (iPB) with outstanding high-temperature creep resistance and stress-crack resistance is applied widely in the field of hot-water ...
Yuanjin Zhao+3 more
doaj
The antifriction properties of naphtene and polyglycol oils during little loading with lubrication of pair bronze-tungsten-carbide-alloy WK-6 (WK-ll) and graphelon-20-WK-6 (WK-11) and high loading with lubrication of pair ball-bearing-high-chromium steel
H. O. Sirenko+4 more
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A newly designed and constructed sliding plate rheometer is used to measure the high frequency (210 Hz) linear viscoelastic properties of two model polymers: polybutene (PB) and polydimethylsiloxane (PDMS).
Braybrook Chelsea A.+3 more
doaj +1 more source
Design and placement of synthetic sex pheromone traps for cacao mirids in Ghana [PDF]
Cacao mirids (Sahlbergella singularis, Distantiella theobroma and Bryocoropsis laticollis) were captured in pheromone traps releasing a 2:1 blend of the sex pheromone components of the two first named species in a series of five experiments on cacao ...
C.A.M. Campbell+6 more
core +1 more source
Isotactic polybutene-1 (PB)/isotactic polypropylene (PP) blends, typical crystalline/crystalline polymer blends with low-melting-temperature (Tm) PB and high-Tm PP, exhibit complicated interactions between their components in both molten and solid states.
Xiangjie Yan+5 more
doaj