Over the recent decades the produced amount of fiber reinforced plastics has grown dramatically, leading to unsolved questions concerning the disposal of these materials after their end of life cycle. The thermal disposal in incineration plants or in the cement industry is for sure not a sustainable solution of this problem. Not to mention the special problems caused by incompletely combusted carbon fibers, leading to troubles and short circuits in filter devices.
Aditya Birla has developed a new class of amines, enabling the chemical cleavage of epoxy resins by means of cheap solvents based on renewable raw materials. By separating the duroplastic matrix from the reinforcing fibers the recovery of both materials becomes possible and the recycling is significantly eased.
The newly developed resin system YDL 5557 / THR 9357 can be used for the vacuum infusion process and distinguishes itself by a very long pot life and a low viscosity. Composite parts made thereof show mechanical and thermal properties being absolutely comparable with conventional epoxy resins and can for instance be used for production of sporting goods, boats or rotor blades of wind turbines.