The invention relates to a synchronous belt. The synchronous belt is formed by
casting a rubber compound and strong thread
rope, and the rubber compound comprises, by weight, 45-60 parts of hydrogenated
nitrile butadiene rubber, 14-25 parts of trans-1,4-polyisoprene, 6-10 parts of
polybutylene telephthalate, 4-8 parts of methacryloxy
silane, 7-15 parts of a microcapsule, 1-4 parts of a
lubricant, 1-4 parts of a curing agent and 1-2 parts of an
antioxidant; and the strong thread
rope is one of glass fibers,
polyester fibers,
aramid fibers and
carbon fibers. The invention also relates to a production of the synchronous belt. The
adhesive wrapping microcapsule is dispersed in a matrix, and when the matrix micro-cracks, the wall of the
polyurea resin
capsule is ruptured, so the
adhesive in the microcapsule flows out of the
capsule, and realizes cross-linking curing of an
epoxy group with -NH2 in the matrix in order to realize a self-healing effect of the synchronous belt; and hydrogenated
nitrile butadiene rubber, trans-1,4-polyisoprene and methacryloxy
silane are used to effectively improve the integral performances of the synchronous belt.