The influence of the addition of ionic liquids on the properties of rubber-coated fabrics filled with layered fillers

Oceniono wpływ dodatku do mieszanek kauczukowych cieczy jonowych – bromku oraz chlorku 1-butylo-3-metyloimidazoliowego – na właściwości kompozytów tkaninowo-gumowych. Kompozyty otrzymywano na bazie tkaniny poliamidowej, którą pokrywano cienką warstwą wulkanizatu kauczuków butylowego lub butadienowo-akrylonitrylowego, napełnionych talkiem bądź miką. Dodatek napełniaczy modyfikowanych cieczami jonowymi w istotnym stopniu powodował zmniejszenie palności badanych materiałów, z zachowaniem adhezji wulkanizatu do tkaniny poliamidowej oraz ich właściwości mechanicznych, nawet po procesie starzenia termicznego.The effect of ionic liquid additives,1-butyl-3-metyloimidazolium bromide and chloride, on the properties of rubber-textile composites was examined. The composites were obtained from polyamide fabric covered with a thin layer of vulcanizate (butyl rubber or acrylonitrile-butadiene rubber) and filled with talc or mica. The addition of fillers modified with ionic liquids significantly reduced flammability of the investigated materials, without deterioration of their mechanical properties and adhesion between vulcanizate and polyamide fabric, even after thermal aging process

Tribological Properties of Silicone Rubber-Based Ceramizable Composites Destined for Wire Covers. Part II. Studies of Ball-on-Plate, Plate-on-Plate and Ring-on-Plate Friction Contact

Tribological properties of commercially available silicone-based ceramizable composites were studied. Friction forces of three different types of ceramizable composites were measured against three different-shape steel samples. Each friction pair contact was loaded with 15, 30, 45 or 60 N. Conducted studies reveal that tribological behavior of the composites vary considerably depending on the composite type and friction contact. However, friction force was increasing with an increase of the load, which mean that the composites behave accordingly to the classic friction theory

Synergistic Effect of Mica, Glass Frit, and Melamine Cyanurate for Improving Fire Resistance of Styrene-Butadiene Rubber Composites Destined for Ceramizable Coatings

Synergistic effects of different fillers are widely utilized in polymer technology. The combination of various types of fillers is used to improve various properties of polymer composites. In this paper, a synergistic effect of flame retardants was tested to improve the performance of ceramizable composites. The composites were based of styrene-butadiene rubber (SBR) used as polymer matrix. Three different types of flame retardants were tested for synergistic effect: Mica (phlogopite) high aspect-ratio platelets, along with low softening point temperature glass frit (featuring ceramization effect), and melamine cyanurate, a commonly used flame retardant promoting carbonaceous char. In order to characterize the properties of the composites, combustibility, thermal stability, viscoelastic properties, micromorphology, and mechanical properties were tested before and after ceramization. The results obtained show that the synergistic effect of ceramization promoting fillers and melamine cyanurate was especially visible with respect to the flame retardant properties resulting in a significant improvement of fire resistance of the composites