Research News

Additives & Fillers

Preparation and Physical Properties of Green Rubber Composite from Natural Rubber and Coconut Meal Waste

To date, the biopolymer is attractively used to blending with natural rubber (NR) to enhance its mechanical properties and biodegradable ability. Therefore, the objective of this work is to study the preparation of biopolymer composite from NR and coconut meal waste (CF filler) by using maleic anhydride (MA) as a crosslinking agent. more...

June 19. 2015 - Research news

Elastomer Components

Influence of Gamma Irradiation on low Temperature Properties of Rubber Seal Materials

In many fields the function of seal materials is required at low temperatures. Therefore the understanding of failure mechanisms at low temperatures is of high importance. In some applications elastomeric seals are used in environments with increased irradiation background, as e.g. in containers for radioactive waste. more...

June 19. 2015 - Research news

Reduced compound viscosity and shorter vulcanisation time

Vulkanol P – A new Processing Plasticizer for Silica Compounds

Modern generation of passenger tire consists of S-SBR/BR based tread compounds con-taining high surface silica in combination with a sulphur silane as coupling agent. A novel processing plasticizer improves the processing of silica compounds significantly. The product reduces the compound viscosity in combination with longer scorch safety and shorter vulcanisation time. more...

June 19. 2015 - Research news

Additives & Fillers

Elastomer Composites with the Effects of Electromagnetic Shielding

The main goal of the present work is the preparation of rubber composites filled with soft magnetic lithium ferrite and metallic FeSi powder and investigation of filler influence on curing characteristics, selected physical-mechanical properties and shielding characteristics of tested systems. The study is also dedicated to the evaluation of crosslink density of prepared materials. more...

June 19. 2015 - Research news

Simulation & Development

Application of Endochronic Plasticity on Simulation of Technical Rubber Components

„Endochronic plasticity is applied on rubber components to describe quasi-static inelasticity such as MULLINS effect, hysteresis and remaining strains by a FE model. Following [7] many modifications and implementations of that constitutive model are known. For realistic simulations a stable parameter calibration process is required. more...

June 19. 2015 - Research news

Additives & Fillers

Graphene filled Nitrile Butadiene Rubber Nanocomposites

The exfoliated graphene nanoplatelets (xGnPs) are a new class 3-d carbon based layered nanofillers containing stacks of graphene sheets. Four commercially available carbon based nanofillers xGnPs of type xg C750, xg M5 and UF1 C98 and additional carbon black (CB) N339 with nitrile butadiene rubber (NBR 3945) as rubber matrix were used. The rubber nanocomposites were prepared by melt mixing. more...

June 19. 2015 - Research news

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Rubber and Polymeric Materials Conference in Slovakia

Automotive Industry in Slovakia

Ten years ago, in May 2005, the first International Conference on polymeric Materials in Automotive was organized in Bratislava. The events reflect the permanent importance of automotive industry as a key economic factor in Slovakia, derived from the presence of dominant investors in Slovakia. more...

May 19. 2015 - Research news

Dynamically Vulcanized Blends – Closing Study (Part IV)

Thermoplastic Vulcanizates Based on Polyethylene and Styrene-Butadiene Rubber (Part IV)

Thermoplastic vulcanizates (TPVs) are thermoplastic elastomers (TPEs) prepared by dynamic vulcanization where the rubber component is cured during intensive mixing with thermoplastics. It is suitable to decrease the costs of such materials. more...

May 19. 2015 - Research news

Polyurethanes & Thermoplastics

Effect of low Doses Beta Irradiation on Mechanical Properties of Surface Layer of Injection Moulded Polybutylene Terephthalate (PBT)

Using low doses of beta radiation for polybutylene terephthalate (PBT) and its influence on the changes of micromechanical properties of surface layer has not been studied in detail so far. The specimens of PBT were made by injection moulding technology and irradiated by low doses of beta radiation (0, 33, 66 and 99 kGy). more...

May 19. 2015 - Research news

Additives & Fillers

The Influence of Corn Starch on Resistance of Rubber Blends to Fungi

In this project vulcanizates of rubber blends were prepared based on ethylenepropylenediene rubber with content of corn starch as a filler. Starch was used in its native and also thermoplasticform. more...

May 19. 2015 - Research news

Polyurethanes & Thermoplastics

Effect of Beta Irradiation on Mechanical Properties of Surface Layer of Injection Moulded High Density Polyethylene (HDPE)

The influence of beta radiation on the changes in the structure and selected properties (mechanical and thermal) polymers were proved. The specimens of high density polyethylene (HDPE) were made by injection moulding technology and irradiated by low doses of beta radiation (0, 33, 66, 99, 132, 165 and 198 kGy). more...

May 19. 2015 - Research news

Rubber

Effect of uniaxial Deformation and Relaxation of Rubber/Carbon black Composites on their electrical Properties

Two composites with elastomeric matrices, namely EPDM and SBR, filled with elecroconductive carbon blacks were tested regarding the effect of mechanical deformation of the testing specimen on electrical conductivity of the material. Both decrease as well as increase of electric current was observed during the mechanical deformation or recovery. more...

May 19. 2015 - Research news

Rubber

Effects of low Temperature Atmospheric Plasma on Wett­ability of natural Polymer surfaces and Microorganisms

Utilization of plasma in connection with wood is currently driven by availability of new types of plasma generating low temperature discharge at atmospheric pressure. The aim of this paper is to evaluate capability of atmospheric discharge with runaway electrons (ADRE plasma) in improving wettability of sessile oak wood surface at various regimes of plasma treatment. more...

May 19. 2015 - Research news

Rubber

Rheological and mechanical Properties of biodegradable polymer Blends based on Polylactic Acid and Polyhydroxybutyrate

The present work is focused on study of rheological and mechanical properties of biodegradable polymer blends based on PLA/PHB combination. Flow curves and processing stability was measured using the oscillation rheometry. Effect of PLA/PHB ratio on processing stability as well as mechanical properties was investigated. more...

May 19. 2015 - Research news

Rubber

Method for computerized Estimation of Temperature Profiles for Elastomers

In this work a study was carried out about the influence of temperature on the transmission characteristics and lifecycle of an elastomer based on natural rubber. The resulting experimental data were used to develop a thermo-viscoelastic material model, which was then integrated into a new concept for temperature-dependent lifecycle analysis. more...

April 16. 2015 - Research news

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