Toho Tenax Launches High-tensile, Highly Shock-resistant Hybrid Prepreg Combining Carbon Fiber and CNT Technology
| Subj: Press-releses
Toho TenaxáCo., Ltd. , theácore company ofátheáTeijin Group Ĺs carbon fibers andácomposites business, announced today thatáit has developed aánew high-tensile, highly shock-resistant prepreg thatáincorporates carbon fiber developed byáToho Tenaxáforáaerospace applications andáspecialized carbon nanotubes (CNT). Aáprepreg is aácarbon fiber sheet pre-impregnated withámatrixáresin andáused asáanáintermediate materialáforácarbon fiber reinforced plastics (CFRP).
Toho Tenaxĺs new hybrid prepreg has been adopted byáMizuno Corporation ináaánew golf club shaft thatáweighs nearly 30% less than conventionaláshafts ofátheásame thickness. Theáhigh-tensile prepreg enables theáshaft toábend suitably asátheáballáis impacted andáthen cuts theáshock ofáimpact byámore than 10% toáreduce club movement onátheáfollow-througháswing.
Theásurface ofátheáCNT is specially treated andáits structuraláelements disperse equally when Toho Tenaxĺs carbon fiber is impregnated withámatrixáresin containing theáCNT. Theáhybrid combination ofácarbon fiber andáCNT realizes aásuperior CFRP thatáoffers improved tensile strength andáshock resistance. TheáCFRP also is extra durable becauseátheácarbon fiber andámatrixáresin do notápeeláaway fromáeach other thanks toátheáCNTĺs balanced dispersion.
TheáTeijin Group is accelerating its development ofáits new high-tensile, highly shock-resistant prepreg foráhigh-end applications inátheásports, leisure andáaircraft fields, where weight reduction andáhigh functionality are especially critical. Teijin also is strengthening its capabilities toáprovide solutions forádiverse globalábusinesses, fromáupstreamátoádownstream.
SinceáCFRP is used ináfields ranging fromáaircraft andáautomobiles toáinfrastructure andáleisure, its prescribed properties must differ widely depending onátheáapplication. Toáaddress these specific demands, Teijin is developing technology forávarious combinations ofácarbon fiber andámatrixáresin andáforáspecific processing needs.
Carbon fiber sheet andámatrixáresin, however, tend toápeeláaway fromáeach other when molded CFRP products are subjected toástrong impact, leading toádecreased strength andátension. Technologies have been pursued toábetter integrate carbon fiber andáCNT, butáuntilánow theácohesiveness ofáCNT elements had prevented themáfromádispersing equally inátheámatrixáresin, resulting ináprepregs ofáunstable quality.
Source: Toho Tenax Co., Ltd.