Rubber innovations 2021 | European Rubber Review

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ERJ is compiling a series of innovative applications for rubber materials announced in 2021. Readers will be invited to select the most interesting developments towards the end of the year.

Germany: Freudenberg sealing technologies began manufacturing gaskets made from a new EPDM material, which is supposed to deal with hydraulic seal leaks at high altitude and low temperature. Grade 80 EPDM 426288 features a “revolutionary formulation” that allows hydraulic sealing systems to operate in temperatures as low as -65 ° C, the FST said on July 6. Based on a “single polymer”, which does not require the use of large amounts of plasticizers, the EPDM material is believed to meet the stringent requirements of the new AMS7361 specification for improved low temperature behavior in commercial aircraft hydraulic systems. Rubber can also be designed to resist sunlight, ozone, and chemical degradation, effectively sealing phosphate ester hydraulic fluids and other fluids at temperatures up to 150 ° vs. Find out more

TG soles

Japan: Toyoda Gosei has developed “smart insoles” with integrated e-Rubber sensors that can obtain data on foot pressure during movement. The insole is being tested by a Japanese golf school, which has been receiving samples since early June, Toyoda Gosei said on June 15. The “lightweight and durable” insoles can sense and measure subtle changes in foot pressure with great precision, thanks to the e-Rubber which acts as a thin and flexible sensor. TG’s patented e-Rubber is a “next generation rubber” which contracts with the application of tension … Read More

300 Rizzello Intelligent Rubber Robot Copyright Oliver Dietze

Germany: researchers from University of the Saarland develop flexible robot arms using an intelligent “dielectric elastomer” composite. When voltage is applied, electrodes printed on both sides of the material attract each other, compressing the polymer so that it contracts and relaxes like muscle tissue. By precisely varying the electric field, the elastomer can perform continuously variable bending motions or even stand still in a desired position. By combining many of these “little muscles”, a flexible robotic arm can move freely in “almost any direction … Read More

Japan: Toyoda Gosei recently unveiled a material crosslinking technology that can six-fold the toughness of EPDM rubber by incorporating a polyrotaxane into the chemical structure of the rubber. In addition, polyrotaxanes have a unique molecular structure that allows great flexibility of materials, added the Japanese group, which describes the technology as creating “freely movable ring-shaped molecules” that alleviate stress and improve toughness and the flexibility of rubber when stretched or pressed. Toyoda Gosei aims to use know-how in automotive materials technology “for better environmental performance and vehicle comfort.” Read more

South Korea: researchers from Samsung Institute of Advanced Technology (SAIT) have developed a technology to realize an expandable electronic device with a high aspect ratio. SAIT researchers replaced the plastic material used in existing stretch screens with an elastomer, to overcome device limitations. The team was able to integrate an expandable organic LED (OLED) display and photoplethysmography (PPG) sensor into a single device to measure and display the user’s heart rate in real time, creating the form factor ‘electronic skin. expandable ”. Most importantly, the team changed the composition and structure of the elastomer and, using existing semiconductor manufacturing processes, applied it to substrates of expandable OLED displays and optical blood flow sensors. … Read more

Other innovative rubber applications to follow …

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