LFT, a long fiber reinforced thermoplastic, is Long Fiber reinforced Thermoplastics, compared to conventional fiber reinforced thermoplastics. Typically, fiber lengths in fiber reinforced thermoplastics are less than 1 mm, while in LFT, The length of the fibers is generally greater than 2 mm, and the current processing technology has been able to maintain the fiber length in the LFT above 5 mm. The long fiber is impregnated with a special resin system to obtain a long strip which is sufficiently wetted by the resin, and then cut into a desired length as needed. The most used matrix resin is PP, followed by PA, but also PBT, PPS, SAN and other resins. Only different fibers are needed for different resins to achieve better results. Depending on the end use, the finished product can be Strips, which can also be strip-shaped, width-width boards, or even rod-shaped, can be used directly to replace thermoset products.
