SVIBOR - Papers quoted in CC - project code: 2-15-019
MINISTRY OF SCIENCE AND TECHNOLOGY
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Papers quoted in Current Contents on project 2-15-019
Quoted papers: 0
Other papers: 58
Total: 58
Title: Leather micromehanics
- Authors:
- Bajza, Željko (140705)
- Vuković, Tomica (78506)
- Agić, Ante (137300)
Journal: Int.J.Adhesion and Adhesives
Number: mpen
Volume: Co
Year: 1991
Pages: from 1141 to 1149
Number of references: 103
Language: engleski
Summary: In view of mechanics leather is consisted of collagen
fibers andelastin with addition of fats,water and
inorganicmaterials.Uniform pore reducing in the direction of the facegives
leather directed permeability.The complex nature ofdeformation
kinematics(theory of large deformations)andcomplex space geometrical form
of leather products result ininsufficient theoretical studying of leather
mechanics.Theauthors have made physical investigations of
stretching,tensilestrength and tearing.Model which have to explain
phenomena ofleather firmness on physical mechanical grounds is
made.Lanirsmodel of biological tissue behaviour is made and relation
betweendeformation and tighteningis showed in extendingdiagram.Mechanism of
diffusion of wapour,sweat and air ispresented as well as free energy
increase calculated byFlory-Huggins equation.It is concluded that
application ofmicromechanics and scientific criteria can contribute
tounderstanding of many phenomena in production and using ofnatural
leather.
Keywords: leather micromehanics,theoretical Lanir-s model,mechanical properties
Title: Effect of Polymer-Filler Adhesion on the Film Properties
of Poly(vinyl-acetate) Adhesives Filled with Calcite Fillers
- Authors:
- Kovačević, Vera (74041)
- Lučić, Sanja
- Hace, Drago (15006)
Number: ani
Volume: 13.d
Year: 1995
Pages: from 87 to 94
Number of references: 105
Language: hrvatski
Summary: The mechanical properties of film adhesives depend very
strong on the degree of interfacial bond developed between
poly(vinyl-acetate) polymer matrix and calcite filler. In the present paper
tensile properties were evaluated in the composition range 0-15 wt %
calcite, along with filler surface
modifications with stearic acid. State of dispersion of the filler in the
polymer matrix has been analyzed by studying the morphology of the adhesive
films with the help of scanning electron microscopy. Tensile strength
increased with filler concentration, while breaking elongation decreased.
The tensile increase was attributed to the increase of adhesion between
polymer and filler. Generation of discontinuity in adhesive film structure
through formation of stress
concentration points accounted for breaking elongation decrease and
relative tensile strength decrease, when very coarse filler particles were
present. The tensile breaking strength data were analysed using some models
in orther to understand the generation of discontinuity or weakness in the
structure of two-phase adhesive films. Breaking elongation improvement of
adhesive films depend on the effectiveness of the coupling agent in the
optimisation work of adhesion, wetting ability of the poly(vinyl-acetate)
and, as a result, lowering the free surface energy of the interface.
Keywords: Poly(vinyl acetate)PVAC adhesive, composite PVAC matrix/CaCO3 filler, adhesion, mechanical properties of film
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