Piemarker Unsaturated polyester composite reinforced with piemarker fiber

摘要

In this paper,instead of glass fiber,a bio-fiber (piemarker fiber) was used to reinforce unsaturated polyester (UP).UP resin was reinforced with piemarker fiber (PF) in a mold under hot pressing.The mechanical properties of the result composites were tested and hot pressing procedure was optimized.The optimum hot pressing technology was obtained.When hot pressing temperature was 90°C and mat was hot pressed for 1.5h.The mechanical properties of the composites indicated that:the optimum mass ratio of piemarker fiber to UP was 30∶70,at which the flexural strength of the composite was 48.77MPa,the tensile strength was 29.082MPa,and the impact strength was 9.89KJ/m2.