Thermoplastics / Molding Compounds

Short-cut fibers, such carbon, aramid, nylon, but most commonly E-glass, are used as reinforcing additives in sheet molding compounds (SMC) and bulk molding compounds (BMC). Short-cut fibers are compounded with the resin paste in a mixer and subsequently extruded. Short-cut fibers increase tensile strength and tensile modulus, both of which are strongly influenced by the fiber length. In thermoplastic-reinforced polymers short-cut fibers deliver good strength, stiffness, impact resistance and thermal stability while maintaining low cost. Most commonly these properties are achieved by using glass fibers, while carbon fibers are used when highest stiffness is required. Both E-glass and carbon fiber can be supplied by EFT.