Reduction of Triboelectrification of Polymeric Textiles
The present work investigates the effect of blending polyester (PET) and polyamide (PA) by carbon fibers (CF) in the form of simple weaves and sliding on cotton textile. It was revealed that electrostatic charge (ESC) decreased with increasing CF content. besides, after sliding ESC displayed higher values than that observed after contact-separation.
Trelleborg ordnet Struktur und Verantwortlichkeiten neu
Mit Wirkung zum 1. April wird Jürgen Bosch neuer Business Area President von Trelleborg Sealing Solutions, Stuttgart. Linda Muroski verantwortet den neuen Geschäftsbereich Medical Solutions.
Vorbereitungen für neuen Pyrum-Standort in Perl-Besch laufen
Mit dem planmäßigen Start der Rodungsarbeiten am neuen Standort Perl-Besch wird das Grundstück nun für weitere Baumaßnahmen vorbereitet. Mit einer Größe von 8.500 m² handelt es sich bei dem Areal um den ersten Bauabschnitt des geplanten neuen Werks.
Freudenberg baut Produktion für Druckausgleichselemente aus
Freudenberg Sealing Technologies verdreifacht Produktionskapazitäten für das intelligente Druckausgleichselement in Deutschland und den USA.
Enhancing the Strength and Wear Resistance of Rocca Oil based Epoxy/TiO2 NPs Matrix as Eco-Friendly Reinforcements
This study investigates the mechanical, physical, and wear-resistant properties of different epoxy composites. An epoxy matrix is used as the base material, while a combination of rocca natural oil and TiO2 nanoparticles is used as filler. The experiments include XRD analysis, hardness measurements, stress-strain curve analysis, friction coefficient and wear rate calculations and topography examination of worn surfaces using optical 3D and SEM imaging. The results show that the hybrid filler is well-dispersed throughout the matrix according to XRD analysis. Additionally, filling the matrix with 1.5 % TiO2 nanoparticles and 10 % rocca/epoxy matrices increases the hardness value by approximately 13.3 %. The lowest friction coefficient and wear rate were found in the sample filled with 10 % rocca oil and 1 % TiO2 nanoparticles, with reductions of 61 % and 70 %, respectively.
Perspective Application of Biopolymers as Components of Rubber Compounds
Biodegradable and environmentally friendly polymers made from renewable raw materials are now the preferred choice for a wide range of applications. However, a combination of petroleum and bio-based sources is now being studied for developing cost-effective and environmentally friendly rubber products, with a specific pursuit of the European Green Deal. This research is focused on the application of calcium lignosulfonate into NBR rubber. The incorporation of plasticizer into the rubber compounds aimed to plasticize the biopolymer, to achieve a higher degree of homogeneity, improve the interfacial adhesion between the biopolymer and rubber matrix, and consequently achieve improved mechanical properties. The obtained results clearly show that it is possible to incorporate calcium lignosulfonate into the rubber matrix and to achieve the required characteristics of prepared vulcanizates.
Selective hydrogenated Styrene Butadiene Rubbers (HSBR):
Hydrogenated styrene butadiene rubber (HSBR) produced by hydrogenating a styrene butadiene rubber (SBR). Compared to conventional SBR, HSBR offers several advantages, such as increased strength, toughness, and resistance to heat, aging, and chemicals. In addition to these material properties, functionalized hydrogenated SSBR is promising for reducing the usage of the much-discussed 6PPD antioxidant. This study aims to reduce the usage of 6PPD through applying a selective HSBR technology. By selective hydrogenation, the hydrogenation ratio could be controlled to levels, where the unsaturation is minimized to levels essential for vulcanization. The basic qualities of a functionalized SBR are maintained. This approach would finally yield a high performance SBR which is less susceptible to oxidation and ozone.
„Networking for a sustainable Future“
Das Jahr 2024 ist ein DKT-Jahr. KGK sprach mit dem Geschäftsführer der DKG Michael Patrick Zeiner zum Stand der Vorbereitungen und Anmeldungen sowie zu den Neuerungen, die die Besucher der Veranstaltung erwarten.