Abstract: To enhance students’ understanding of the “dual carbon” strategy, this experimental teaching design focuses on reprocessable rubber materials. First, a novel crosslinking agent (B-KH580) was synthesized through the reaction between 1,4-phenyldiboronic acid and (3-mercaptopropyl)triethoxysilane. Subsequently, B-KH580 was blended with styrene-butadiene rubber (SBR), followed by hot-pressing at 160 °C to obtain boronate ester-crosslinked SBR. The incorporation of abundant reversible dynamic covalent boron-oxygen bonds (―B―O―) enables the rubber material to exhibit excellent reprocessability. After reprocessing, the material maintains over 95% of its original tensile strength, over 84% of its elongation at break, and over 87% of its Young’s modulus. This experimental approach not only introduces cutting-edge research into laboratory teaching but also provides students with a tangible demonstration of the “dual carbon” strategy.

Key words: Dual carbon, Dynamic covalent bond, Reprocessable, Rubber, Bond of borate ester, Experimental teaching