Nynas begins testing the performance of its biobased Nytex BIO 6200 oil in real tires

Stockholm, Sweden – Having made it its mission to make the most of oil and to proactively contribute to sustainable development, Nynas recently devised a study to confirm the performance of the company’s biobased tire oil with tests in real tires.
“Collaborating with various partners, we were able to establish the performance of tires made with our new biobased oil set against a baseline observed for tires made with TDAE,” says Dr Kamyar Alavi, Senior Specialist, Tire and Rubber Oils, Nynas Naphthenics, who outlined and oversaw the study together with the Nynas Tire and Rubber Team.
Produced with renewable feedstock, Nynas’ biobased tire oil NYTEX® BIO 6200 has been ranked as one of the most important sustainability projects by the European Rubber Journal (ERJ). Extensive studies at Nynas’ Rubber Compounding Lab have provided promising results for the performance of key properties, confirming that the biobased oil will perform at least as well as conventional mineral tire oils, while adding significant value with regard to raw material sustainability.
With performance targets for the biobased oil equalling those of conventional tire oils in various lab studies, the natural next step was to test the new oil in real tires. Hence, tires were produced with European winter tire tread compound formulated with either NYTEX BIO 6200 or TDAE, which was used as a reference. The performance of the tires was then tested in accordance with standard test methods. In addition, the test results were also compared with the results of similar real tire tests carried out in 2016 on tire tread compound based on NYTEX® 4700, again using TDAE as a baseline reference.
“To take our testing from the lab scale to reality, we first made some adjustments to formulations in lab trials to reach target values for, for instance, the curing behaviour, the compound viscosity, as well as tensile and DMA properties,” says Kamyar Alavi.
Tests of the real tires, carried out according to the ECE R.117 regulation for measuring wet grip and rolling resistance, showed that NYTEX BIO 6200 had the same wet traction properties as TDAE but displayed advantages for rolling resistance. Ice and snow traction were evaluated separately on a test track for winter tire testing, where the biobased oil also performed better than TDAE on snow and significantly better on ice.
“This gives us the confidence to state that we have proven the performance of NYTEX BIO 6200 in real tires,” he adds.
Apart from performing well in real tires, the biobased oil also got top marks for good behaviour in the production process, both in mixing and in extrusion, which is valuable information from a handling viewpoint.
“These real tire tests show that NYTEX BIO 6200 not only adds sustainability, but also, based on our results, widens the window of performance of the tire,” says Kamyar Alavi.