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A characteristic of selected properties of vulcanised rubber elements used on the “Izabel” inland vessel

Pawłowska P., Matuszak Z., Sosik K., Chovancová M.

New Trends in Production Engineering

2018

Vol. 1, Iss. 1

675-679

Vulcanised rubber as a complex system is made from the basic component being virgin rubber and various components amounting to 10-15 per cent or even more. The material gains its most valuable properties in the final phase of processing i.e. vulcanisation. In mechanical as well as automotive engineering it is important for vulcanised rubber to be resistant to grease, oil and fuel in high operating temperatures. Being one of the very valuable isolation materials, vulcanised rubber is also characterized by dielectric and elastic properties as well as distinguished resistance to operating conditions (high/low temperature, weather conditions). All the above mentioned applications of vulcanised rubbers are also found in the shipyard industry. Their use is also very much predicated on the properties such as: ability to attenuate mechanical vibrations, high elasticity, considerable elastic deformability under static and dynamic loads, low permeability of water and gas, resistance to various chemicals, and other. The purpose of this article was to determine the hardness of vulcanised rubber samples obtained from various places on the “Izabel” inland barge. The scope of the study covered sampling and preparing the samples for testing (i.e. cleaning and degreasing the samples). Then, the hardness of the samples was measured using the Shore hardness test. The first part of the article presents the general concept of vulcanised rubber, its main components, properties, applications, and ageing. The second part focuses on the research scope and measuring the hardness of vulcanised rubber samples obtained from the “Izabel” inland barge. vulcanised rubber, hardness, ageing, wear and tear wulkanizowanej gumy, twardość, starzenie się, zużycie

Amoniowe ciecze jonowe z anionem 2-merkaptobenzotiazolanowym jako przyśpieszacze wulkanizacji kauczuku nitrylowego

Maciejewska M., Sznajdrowska A., Niemczak M., Giszter R., Walkiewicz F.

Przemysł Chemiczny

2012

T. 91, nr 11

2240--2244

W wyniku połączenia taniego czwartorzędowego kationu z anionem 2-merkaptobenzotiazolanowym otrzymano ciecze jonowe, dla których określono przemiany fazowe oraz stabilność termiczną. Uzyskane związki z powodzeniem mogą być stosowane, jako aktywatory w procesie wulkanizacji gumy. 2-Merkaptobenzotiazolany amoniowe pozwalają na zdecydowane skrócenie czasu wulkanizacji w porównaniu z klasycznym aktywatorem, jakim jest 2-merkaptobenzotiazol. Określono parametry mechaniczne otrzymanych wulkanizatów.

Four ammonium 2-mercaptobenzothiazolates were prepd. and used as ionic liqs. for curing acrylonitrile-butadiene elastomer to study the vulcanization kinetics, crosslinking d. and mech. properties of the vulcanizates. Use of the ionic liqs. results in accelerating the curing rate but also in determination of mech. strength of the rubber vulcanizates.