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Mechanical Properties of Special-shaped Mo Fiber Reinforced Mineral-filled Polymer Composite
Xiuhua Ren,Chao Zhang,Jianhua Zhang,Peng Liu,Guangjiu Qin 한국섬유공학회 2021 Fibers and polymers Vol.22 No.2
With superior vibration alleviation property, mineral-filled polymer composite (MFPC) has attracted moreattention in the field of mechanical manufacturing. However, the application of MFPC is limited by its inferior mechanicalstrength. Straight-line and special-shaped Mo fibers were respectively added into MFPC to improve its mechanical propertiesin the paper. The influences of fiber shape and matrix performance on interface bonding property of fiber-matrix were studiedsystematically. And the effects of fiber shape and fiber content on compressive and flexural strength of MFPC wereseparately discussed. Finite element analysis was employed to further verify experimental results. Compared with straightlinefiber, both pulling ability and interfacial bonding strength of special-shaped Mo fiber are greatly improved when massratio r of resin and curing agent is identical. For the same fiber, interface bonding strength of r=4:1 is obviously greater thanthat of r=7:1. The maximum mechanical strength is achieved when mass fraction of fibers is 1.2 %. Mechanical properties ofMFPC reinforced by special-shaped fibers are much better than those reinforced by straight-line fibers. By contrast, thereinforcing effect of M-shaped fibers is optimal, followed by N-shaped, U-shaped the third, and V-shaped the minimum,which consists with the results of finite element simulation.
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