LANXESS special rubber product introduction

Global Organotin Network News:

Industrial rubber achieves sustainable mobility

Langxess’s high-performance elastomers Business Unit (HPE) and Keltan Elastomer Business Unit (KEL) aim to provide the industry with a variety of high-performance special rubber products, including Depan® (Therban®) hydrogenated nitrile rubber and Keltan® ECO EPDM rubber . Rubber parts made of these two kinds of rubbers are responsible for very important tasks in various motor vehicles, mechanical equipment, construction, and almost all technical equipment. The invention of industrial rubber can be traced back to nearly 100 years ago, and its diversified functions and uses are hardly comparable to other materials.

Depan® is the youngest member of LANXESS’ synthetic polymer family. It was a product specially developed in the 1970s for the prosperous automotive, industrial and petroleum exploration industries. At that time, people wanted to find a new type of rubber that could withstand the multiple requirements of extreme working conditions. Depan® stood out and became the best choice for people.

Depan® has excellent oil resistance and high abrasion resistance under high and low temperature conditions. Therefore, in high-pressure applications such as automobile engine compartments, Depan® is always people’s first choice.

Depan® series products include partially and fully hydrogenated butadiene rubber (HNBR). Due to the improved swelling performance in oily environments, it creates new solutions for developers of industrial rubber products. Opportunity. Although compared with standard nitrile rubber (NBR) and other polymers, all hydrogenated nitrile rubber has high strength and excellent heat and oil resistance, but only Depan® can provide the A comprehensive product that performs well in both wear and tear environments. In addition, Depan® also has particularly excellent durability and mechanical properties. When the contact surface pressure is too high and heat is generated, conventional rubber will be rapidly aging, but Depan® shows the remarkable characteristic of prolonging the service life of the rubber.

Due to its outstanding performance, Depan® is very suitable for demanding applications, such as the production of timing belts, which are widely used in automobile valve structures to replace metal transmission chains. In addition, Depan® is also often used in shaft seals, high temperature gaskets, fuel seals, railway cables, aviation, industrial equipment, and petroleum exploration industries, such as offshore drilling platform seals, drill bit seals, cable outer sheaths, and naval cables And halogen-free low-smoke cables (LSZH). This lightweight product helps improve fuel efficiency and reduce carbon dioxide emissions. In addition to its lighter weight, its energy efficiency level is also higher than that of the metal transmission chain.

In addition to hydrogenated nitrile rubber, LANXESS also promotes the development of bio-based materials through forward-looking products, such as the first bio-based EPDM rubber in history-Keltan® Eco , Thus replacing petrochemical products.

Ethylene-propylene-diene rubber (EPDM for short) is a high-performance ethylene-propylene rubber that uses injection molding, extrusion or calendering. This synthetic rubber can be quickly and effectively mixed with a high proportion of fillers and plasticizers. Ethylene-propylene elastomer has the lowest density among all standard rubbers.

EPDM macromolecules have excellent ozone and weather resistance, as well as eye-catching heat resistance and oxidation resistance. The end product also has good low-temperature flexibility (depending on the ethylene content) and electrical insulation properties. EPDM products are widely used in the automotive engineering industry-which is its largest market so far-from solid and foam rubber-like body seals to applications under the hood such as coolant hoses and sealing strips.

Keltan® ECO is the world’s first synthetic rubber partially made from renewable raw materials, and its basic raw material comes from sugar cane. Ethanol obtained from sugarcane is dehydrated into ethylene, and then polymerized to form EPDM rubber. Brazil’s Braskem S.A. provides “green” ethylene to LANXESS’ plants through pipeline transportation. The company’s ethylene content extracted from sugar cane is as high as 70%, making it an excellent way to reduce personal carbon footprint and improve energy balance. In the next few years, this number will rise to 90%. And in the future, people may completely get rid of the dependence on petroleum by using Keltan® ECO, because only one more step is needed in the above process to achieve this goal.

In the search for new basic substances and methods for producing high-quality products, LANXESS’s Keltan® ECO is a remarkable breakthrough. It is estimated that among the 40,000 tons of Keltan® products produced at the Triunfo base in Brazil in 2012, the proportion of bio-based products will increase and eventually reach the level of 10,000 tons per year. Keltan® ECO can improve the energy balance. The ethylene energy capacity created by sugarcane per hectare is as high as 7 kiloliters. It is mainly used in automobiles, civil construction industries, plastic modification and wire and cable manufacturing.

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