Measuring

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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

Fig. 1: An experimental testing machine for uniaxial stressing of elastomer samples.

Education in Elastomer-Physics

Experimental testing Machine for Elastomers for Educational Purposes and Didactics

This article describes the design, construction and operation of an experi­mental testing machine as part of student works, and deals with the sequence and results of a series of elastomer samples. more...

December 10. 2019 - Research news

Fig. 1: Experimental setup of high-pressure capillary rheometer test.

Mooney-Geiger-Method

Navier’s slip Coefficient Determination of Silicone Rubber Compound by means of High- Pressure Capillary Rheometer

The unique properties of silicone rubber, such as high heat and chemical resistance are the main reasons for its growing importance in the industry [1]. more...

December 10. 2019 - Research news

Fig. 1: Uncovered load bearing elements of bias truck tire.

The influence of neglecting cord shrinkage and cord characteristic linearization on simulation results

Burst Test Simulation for bias Truck Tire

A model of a pneumatic bias tire based on the technique of overlaying the orthotropic reinforcing elements on isotropic rubber elements is presented. more...

September 13. 2019 - Research news

Fig. 3: Comparison  between the times of maximum intensity for the compositions of GEB NR and Latex NR.

The influence of the used methods of processing for incorporating mica as filler into the NR

Determination of Aging behavior of natural Rubber Nanocomposites reinforced with Mica prepared by Latex or Melt mixing Technology

The aim was to research the aging behavior of natural rubber compositions (NR) with synthetic mica by chemiluminescence (CL), in comparison with the traditional test of accelerated aging in forced air circulation with respect to the stress strain properties. more...

September 12. 2019 - Research news

Fig. 5: Determination of the crosslink density by the Mooney-Rivlin approach.

The crosslink density of rubber compounds influences the in-rubber properties of the final product to a great extent

Determination of the Crosslink Density of Tire Tread Compounds by Different Analytical Methods

The crosslink density of rubber compounds influences the in-rubber properties of the final product to a great extent. more...

September 10. 2019 - Research news

Fig.6: SEM images of UV irradiated PET films with different wavelengths (0, 254 and 365nm). [Magnification x 12000].

The effect of ultraviolet (UV) radiation on the surface

Ultraviolet Surface Modification of Polyethylene Terephthalate (PET) for Reducing Thrombogenicity

The effect of ultraviolet (UV) radiation on the surface, dielectric and structural properties of polyethylene terephthala­te (PET) was investigated. more...

August 2. 2019 - Research news

Fig. 1: Raman spectra of alkanes, the enlargement of the C H stretching vibrations, and a further signal in the area of symmetrical vibrations of CH2. Raman spectra are compared with the IR spectra of n-hexane (right hand).

A spectroscopic Method for predicting Viscosity

Correlation between molecular and spectroscopic Properties of Polymers

The Mooney viscosity (MV) of rubbers is known to be an important processing parameter in the rubber industry. more...

August 2. 2019 - Research news

Fig. 1: Principle of Contifeed

A complete Description of Flow under Process like Conditions

A Capillary Rheometer with continuous Feeding

A new approach (Contifeed) for the determination of rheological behavior is presented. Contifeed combines a small lab extruder with a single or dual barrel capillary rheometer. more...

August 1. 2019 - Research news

Fig. 2: Crosslink densities as a function of the amount of devulcanization aid (DPDS).

Rubber-Recycling

Effects of Devulcanization Aid on mechanical and thermal Properties of devulcanized Rubber/Virgin Natural Rubber Blends

Thermo-chemical devulcanization of used truck tires was conducted using various amounts of diphenyl disulfide (DPDS) as a devulcanization aid. more...

May 15. 2019 - Research news

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