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Rubber for electric cable

Study of Wear and Friction Behavior of HDPE-Composite filled by CNTs

Single and multi-walled carbon nanotubes are used in this paper as a filler material to of high density polyethylene. more...

September 4. 2020 - Research news

Fig. 4: Effect of TD to CBS mM ratios on the delta torque of rubber vulcanizates.

Evaluation has been made between TMTD-CBS and BPTD-CBS binary accelerators systems

Exploring the Synergism of Nitro­samine-safe Bis (N-benzyl piperazino) Thiuram Disulfide (BPTD) and N-Cyclohexyl-2-Benzothiazole Sulfenamide (CBS) in the natural Rubber Vulcanization

The synergistic activity of one novel nitrosamine-safe thiuram disulfide, namely Bis-(N-benzyl piperazino) thiuram disulfide (BPTD) in combination with CBS is investigated. more...

August 6. 2020 - Research news

Fig. 1: Cylindrical electrode with a diameter of 25 mm used in dielectric strength test.

Advantages over conventional composites

Study and Improvement of the electrical Properties of Polyester Composites

Styrenated polyester reinforced with small amounts of well dispersed nanoparticles of fumed silica, mica and graphite with the aim to offer advantages over conventional composites. more...

August 5. 2020 - Research news

Abb. 1b: Viskosität von Nanokompositen mit TiO2

Improving the processing and application properties of polymer nanocomposites intensively investigated

Advantages of new rheological Evaluation Methodology for polymeric Nanocomposites

Rheology of dispersive polymeric systems has typically been described by evaluating the viscosity curve (shear thinning phenomenon), storage modulus curve (formation of a secondary plateau), or analysing the information on the damping behavior (e.g., Van Gurp-Palmen plot, comparison of loss factor tan δ). more...

August 5. 2020 - Research news

Fig. 1:Effect of different types of plasticizers on the physico-mechanical properties of PVC/PMMA (50/50, wt/wt) blend.

Dieletric Properties

Miscibility, mechanical and dielectric Properties of PVC/ PMMA Blends modified with Triblock-Copolymer as a novel Compatibilizer

The present research concerns with utilizing poly(methylmethacrylate)-b-poly(n-butyl acrylate)-b-poly (methylmethacrylate) [PMMA-b-PBuA-b-PMMA] triblock copolymer (TBC) as a new compatibilizer for poly(vinylchloride)/poly(methylmethacrylate) [PVC/PMMA] blends. more...

June 17. 2020 - Research news

Fig. 2: Optical micrograph of 30PALF-PP ‘prepreg’ after washing with hot toluene (a). SEM micrograph of the cryogenic fracture surface of 30PALF-PP composite perpendicular to the machine direction (b).

Crystalline Orientation and stacked Structure

Effect of Matrix Orientation and Fiber Content on the Properties of uniaxial Pineapple Leaf Fiber – Polypropylene Composites

Composites reinforced with aligned short pineapple leaf fiber (PALF) and polypropylene (PP) were successfully prepared and studied. more...

May 20. 2020 - Research news

Fig. 1: Photograph images of NS compo­site with different  silver ions (%w/w).

Moisture Content, Swelling Ratio and mechanical Properties

Physical Properties of sustain­able Composites from natural Rubber / Cassava Starch / Silver

Sustainable composites obtained from natural rubber/cassava starch and silver possessing moisture content, moisture absorption, swelling ratio, mechanical properties were reported. more...

May 19. 2020 - Research news

FTIR spectroscopy and proton nuclear magnetic resonance (1H NMR) spectroscopy

Influence of Methoxy Polyethylen Glycol Methacrylate on the Properties of Silica filled Styrene Butadiene Rubber Composites

Methoxy polyethylene glycol methacrylate (MPGMA)was synthesized by direct esterification reaction between (methoxy polyethylene glycol) and methacrylic acid and characterized by FTIR spectroscopy and proton nuclear magnetic resonance (1H NMR) spectroscopy. more...

April 15. 2020 - Research news

Fig. 6: Tensile strength values of NR vulcanizates before and after ageing at 70°C.

Peroxide-Vulcanizated NR

Thermal oxidative Behaviour of Peroxide crosslinked Natural Rubber

The thermal oxidative behaviour of natural rubber cured with four different peroxides namely 2,5-dimethyl-2,5-bis(tert-butylperoxy) hexane (DHBP), 1,1’-di(tert-butylperoxy)-3,3,5-trimethylcyclohexane (TMCH), 1,3 1,4-bis (tert-butyl peroxy isopropyl) benzene (DIPP) and dicumyl peroxide (DCP) was studied. more...

April 15. 2020 - Research news

Necmi Dusunceli_Abb 1

Fracture behavior of PP

Experimental and numerical Analysis of failure Crack Growth of Polypropylene

Observations were presented on crack growth behavior of polypropylene (PP) on virgin and annealed compact tension (CT) specimens at various loading amplitude. The fracture behavior was evaluated using J integral method. J integral fracture resistance decrease with annealing process. more...

April 15. 2020 - Research news

Fig. 2: Block diagram for the preparation of GNP-SP adduct.

Natural Rubber latex with graphene Nanoplatelets (GNPs)

Effect of the Functionalization of graphene Nanoplatelets with a Janus Pyrrole Molecule on mechanical and electrical Properties of natural Rubber Nanocomposites

Nanokomposite wurden durch Mischen von NR-Latex mit Graphene Nanoplatelets (GNPs) hergestellt, die mit einer Janus Pyrrol Komponente durch einen einfachen, nachhaltigen Prozess mit einer sehr hohen Atom- und Kohlenstoffeffizienz nahezu zu 100 % funktionalisiert wurden. more...

April 14. 2020 - Research news

Abb. 1: Einteilung der Beanspruchungen in der Betriebsfestigkeit.

Characterization of durability

The Behavior of Elastomer Bushings in Chassis Systems for Operating

Elastomerlager im Fahrwerk verhalten sich bei Betriebs- und Sonderlasten in der Betriebsfestigkeit stark nichtlinear. Die Kenntnis vom Übertragungsverhalten der Lager ist ein essentieller Baustein für die simulative Prognose von auslegungsrelevanten Last-Zeit-Reihen. Die Charakterisierung der Elastomerlager im hohen Lastbereich zeigt einen ausgeprägten Mullins-Effekt. more...

March 13. 2020 - Research news

Fig. 2: Epoxy + Sand


Tribological Performance of Automotive Friction Nano Composites: Epoxy/Silica/Cu

An experimental investigation carried out to study the effect of epoxy based composites filled by contents of nanoparticles of sand and copper on the tribological behavior in term of friction coefficient and wear. A pin-on-disc tester was used in investigation. Results showed that the presence of the nanoparticles of sand improved the friction coefficient of […] more...

February 18. 2020 - Research news

Fig. 1: PRI of raw NR and NR with varying amounts of copper compounds (in logarithmic coordinates).

Ageing due to Rubber Poisons

The Role of Copper Compounds as Thermooxidation Catalysts

Oxygen in the air is responsible for the thermooxidation of rubber and is catalysed by “rubber poisons”, mainly by copper and manganese compounds. In this study, a variety of copper compounds were used such as copper stearate, copper oxide and copper sulphate. They were mixed with rubber. The thermooxidation of the rubber was evaluated using […] more...

February 5. 2020 - Research news

Fig. 3: The PDMS filament at the glass ball     close to the point where the energy to remove glass ball is maximal. Note the formation of many thin polymer strings close to the glass ball. This probably result from cavity formation and stringing as  typically observed for pressure-sensitive adhesives (soft rubber compounds).

Physical Phenomena in Rubber Seals

Fluid Dynamics at the Interface between Soft Elastic Solids

The present publication reviews results of a joint project between Forschungszentrum Jülich (FZJ) and Leibniz-Institut für Polymerforschung Dresden e. V. (IPF) about fluid dynamics at the interface of soft elastic solids, i.e. crucial physical phenomena in rubber seals. We performed adhesion and friction studies for a set of well prepared and broadly characterized technical rubbers […] more...

February 3. 2020 - Research news