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The vulcanization properties of hybrid elastomeric materials based on waste rubber powder
(University of Belgrade, Technical Faculty in Bor, 2019-06-18)
Elastomeric materials have viscoelastic properties and can be designed for numerous applications, tires production, vibration isolation and damping. These properties can be tailored for a wide temperature range and in ...
The influence of modification and the particle size of the montmorillonite on the hydrolytic stability of urea-formaldehyde composite
(Materials Research Society of Serbia, 2019-09-02)
Urea–formaldehyde (UF) resin adhesive is a polymeric condensation product of formaldehyde with urea and is considered as one of the most important wood adhesives. In spite of some advantages such as lower cost, fast curing, ...
The influence of the type of activation of the montmorillonite of hydrolytic stability of the urea-formaldehide nanocomposite
(University of Novi Sad, Faculty of Technology Novi Sad, 2019-10-10)
In this work the hydrolytic stability of nano-composites based on urea-formaldehyde resin (UF) and montmorillonite (K10) as formaldehyde scavenger was investigated. K10 was activated by sulfuric acid (H2SO4) with and without ...
The effect of UV irradiation on hydrolytic stability of urea-formaldehyde resins filled with thermally modified montmorillonite
(RAD Centre, Niš, Serbia, 2019-06-10)
The hydrolytic stability of organic-inorganic nano-composites prepared by a two-stage
polymerization of urea-formaldehyde resin (UF) filled with thermally activated montmorillonite (MMT) has been assessed before and after ...
The influence of montmorillonite activating method on the hydrolytic stability of urea-formaldehyde resin
(Faculty of Technology, Leskovac, 2019-10-18)
Montmorillonite clays are of great importance for processes such as adsorption and
catalysis and polymer composites fabrication . The textural properties of this filler can
be modified to increase their application. In ...
Strukturiranje elastomernih materijala za primenu u poljoprivredi
(UNIVERZITET U KRAGUJEVCU, AGRONOMSKI FAKULTET U ČAČKU, 2019-03-15)
Poljoprivreda i poljoprivredna industrija zahtevaju elastomeme proizvode koji mogu izdržati dugotrajnu izloženost ekstremnim naponima i hemikalijama. Elastomeri dobijeni od etilen-propilen-dienskog kaučuka (EPDM) nalaze ...
Knot Energy
(Kyung Hee University , RIRCM, OCAMI & BK21PLUS, 2019-07-31)
We discuss infinitesimal bending of curves and knots in R3. A brief overview
of the results on the infinitesimal bending of curves is outlined. Change of the
Willmore energy, as well as of the total curvature, total ...
Commercial software packages in relation to standard methods of teaching physics in primary education in rural areas of Serbia
(2019-12-19)
Na osnovu pregleda najsavremeniji nastavni proces fizike u osnovnim školama svake godine postaje izazovniji. Glavno pitanje je kako pronaći prikladna sredstva za približavanje fizike učenicima. Na fizici primarnog nivoa ...
An Overview of Novel Methods for ASEP Performance Evaluation Based on Q-Function Approximation
(27th Telecommunications forum TELFOR 2019, 2019-11-27)
The closed-form expression for Q-function does not exist so it is necessary to develop its approximation in order to overcome the difficulties that might appear in diverse
research areas. In this paper the authors are ...
E-Learning in Higher Education – An Overview of Strategic Planning
(2019-10-03)
Implementation of E-Learning is one of the ways of applying modern information technologies to achieve a high quality of higher education. The transition of higher
education institutions towards E-Learning should be an ...