1 edition of On the rheological properties of paper as influenced by fibre length found in the catalog.
On the rheological properties of paper as influenced by fibre length
Anders P. Arlov
by Dept. of Paper Technology, Technical University of Norway in Trondheim, Norway
Written in English
|LC Classifications||TS1107 .A75 1958|
|The Physical Object|
|Number of Pages||108|
|LC Control Number||2009672655|
Rheology (/ r iː ˈ ɒ l ə dʒ i /; from Greek ῥέω rhéō, 'flow' and -λoγία, -logia, 'study of') is the study of the flow of matter, primarily in a liquid or gas state, but also as "soft solids" or solids under conditions in which they respond with plastic flow rather than deforming elastically in response to an applied gy is a branch of physics, and it is the science. By the analysis of the rheological behavior, the increase of graft length and graft density can both lead to an elevated value of zero-viscosity (η 0), enhanced complex modulus (G*) and increased complex viscosity (η*). Comparatively, graft density contributes more to the improvement of rheological properties than graft length does.
Arabinoxylans significantly influence water balance and rheological properties of bread dough, as well as retrogradation of starch. Arabinoxylans are able to absorb high amounts of water (Brennan and Cleary ; Prasad Rao and others ), causing reduced water availability for gluten during dough development (Autio ). Natural fibre reinforced plant structures are widely used in nature. These plant structures combine light weight with superior mechanical properties. The fibre orientations in plants are optimized to the occurring forces, especially to the bending of plants by wind forces. Therefore it is important to study the effect of fibre orientation to the mechanical properties of materials in a.
The apparent viscosity of various “clean” pulps, as measured by a bowlmixer rheometer, appears to be a function of fiber length. Viscosity ranged from mg for bleached hardwood to 1, mg for wet-strength linerboard. The production of sustainable and effective flame retardant (FR) polyamide 6 (PA6) fibrous materials requires the establishment of a novel approach for the production of polyamide 6/FR nanodispersed systems. This research work explores the influence of three different flame-retardant bridged 9,dihydrooxaphosphaphenanthreneoxide (DOPO) derivatives on the comprehensive properties.
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The objective was to evaluate the influence of the fiber content (between 10 and 30 wt%) on the rheological and mechanical properties of the composites. Variations in fiber dimensions (length, diameter, aspect ratio) along the screws were analyzed and Author: Françoise Berzin, Taweechai Amornsakchai, Alain Lemaitre, Romain Castellani, Bruno Vergnes.
The rheological properties, complex modulus and phase angle master curves for fibre mastic can be constructed utilising the time-temperature superposition principle (TTSP).
Fig. 7 depicts the complex modulus master curves for the base bitumen and binder containing different fibres at % by bitumen by: In the research, an experimental verification of and significance of an influence: volume fraction of fibres, fibres factor, lengths and the shape of fibres on rheological properties of SFRSCC was investigated.
In this paper the results obtained for the mixes with three types of steel fibre Cited by: 6. In the course of the research, the experimental verification of the influence of w/c ratio, superplasticiser dosage (SP), fibre volume fraction and fibre length on the rheological properties of.
The influence of fibre loading, fibre length, and fibre treatment on the theology of composites was investigated. Studies were carried out in the temperature range of to °C and shear rate.
In the studies of sizing effect of the fiber on the rheological properties of the PC/CF composites, the viscosities of the composites prepared with the sized carbon fibers gave higher values than that prepared with unsized carbon fibers because of the increase in the fiber length after extrusion for the sized fibers.
inorganic salt lithium chloride (LiCl). The fibre-length distribution and content, and the densities of the PA11 and modified bio-based PA11 after compounding, were investigated and found to coincide with the final properties of the resultant composites.
The effects of fibre content, fibre aspect ratio, and fibre length on rheological properties. The effect of fiber concentration on shear viscosity and die swell was studied at various temperatures.
Breakage of glass fibers during flow through the rheometer is discussed; it was found that the average fiber length (about μm) was not significiantly altered, except at. Furthermore, rheological properties of fibre suspensions have been well studied (Cui and Grace, ; Derakhshandeh et al., ), showing that factors such as number of fibres and fibre length.
Korhonen M, Hellen L, Hirvonen J, Yliruusi J () Rheological properties of creams with four different surfactant combinations - effect of storage time and conditions. Int J Pharm (1–2)– doi: /S(01) PubMed CrossRef Google Scholar.
Next, the assessment of multi-fibre contribution to rheological prediction was performed. It is known that if η is shown as a function of ndL 2, where n is the number density of the fibre, d the diameter of fibre and L the length of fibre, data plots of η are in a simulation was performed for various condition A r = 10, 20, 30 for ϕ v =, and A r = 10, 20 for ϕ v = software to give the fibre length distribution.
Rheological Properties Measurements The rheological measurements of the composites’ melt-flow properties of were carried out in a twin-bore Ro-sand Capillary Rheometer model RH (The standard RH range supports temperatures from 40˚C to − ˚C.
Influence of fibres on rheological properties and toughness of bituminous binder In this paper, fibre modified binder mastics were prepared with different fibre types was used in this study for measuring the rheological properties of base and fibre reinforced bitumen. It has a torque range between (μNm) and (mNm).
There is. The effect of fiber properties on paper properties The length, thickness and strength of the fiber, as the basic properties of the fiber, have a direct effect on the forming of the paper sheet.
The influence of the three on the forming of the paper is both interrelated and mutually influential. In this paper, a comprehensive study was performed to investigate the influence of fiber on the rheological properties (apparent viscosity and viscoelasticity) of borate crosslinked hydroxypropyl guar (HPG) gels by using a HAAKE MARS Ⅲ rheometer with different geometries (a concentric-cylinder geometry, a vane geometry and a parallel-plate.
To this end, this paper describes an investigation of the influence of synthetic fiber additions (fiber length in the range 12–50 mm and volume fraction in the range 0–4%) on the rheological properties of fiber reinforced fresh mortar (FRFM) and development of these properties over time.
The rheometer Viskomat XL was used in this study. influence of w/c ratio, superplasticiser dosage (SP), fibre volume fraction and fibre length on the rheological properties of PFRFM and PFRFC were investigated.
The influence of fiber length and fiber distribution on the properties of the LGF/PBT composites were studied. The results showed that the length of the residual glass fibers increased with the original glass fiber length increase of LGF/PBT composites.
Workability is a function of the rheological properties of concrete. Influence of fibre on FRFM rheological parameters is very significant but presented in only a few publications, [ 2 ] [ 5 ]. Tomasz PONIKIE WSKI and Janusz SZWABO WSKI Fibers are incorporated in the brittle cement matrix to control cracking, to provide high ductility.
Download Citation | Influence of Cement and Superplasticizer on Rheological Properties of Mortars | Effectiveness of superplasticizer is an effect of complex system of factors connected mainly. Fiber diameter (lm) Fiber length (mm) Young’s modulus (GPa) Elongation (%) REC15 1, 1, 39 12 The objective of this paper is to establish these correlations explicitly for the ﬁrst time, via a system- rheological properties, ﬁber dispersion, and composite tensile properties.
It provides an effective approach to.The paper industry has a number of processes where the rheology is complex and critical to control for trouble free operation. The rheological properties of pulp suspensions and paper coatings are reviewed here.
The flow, rheology and other various phenomena are discussed for pulp suspensions. The particle level models that have been developed for pulp suspensions are compared to experimental.This book gathers the peer-reviewed contributions presented at two parallel, closely interconnected events on advanced construction materials and processes, namely the 2nd International RILEM Conference on Rheology and Processing of Construction Materials (RheoCon2) and the 9th International RILEM Symposium on Self-Compacting Concrete (SCC9), held in Dresden, Germany on .