tetramethyl dipropylenetriamine (tmbpa) in high-performance fiber reinforced polymers (frp) introduction fiber reinforced polymers (frps) are composite materials that combine the high strength and stiffness of reinforcing fibers with the binding and load-transferring capabilities of a polymer matrix. these materials have revolutionized various industries, including aerospace, automotive, construction, and sports equipment, due to their exceptional strength-to-weight...