Kordsa: Improving polyester tire cord adhesion

In a tire, the adhesive between fibre and the matrix requires resistance to the extreme temperatures, cyclic and compression loads, shock, creep and distortion.

Though polyester is an excellent reinforcement material to be used in carcass ply rubber compounds, adhesion between polyester cords and rubber in agricultural or industrial tires is often poor at best. (1)

The poor bondability of polyester fibers with rubber is attributed to the hydrophobic nature of fiber due to the limited number of reactive or polar hydrogen bonding groups available at the…

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