Dynamic Mechanical Property of Quasi Constrained Layer Structural Piezoelectric Ceramic/Carbon Black/Epoxy Resin Composites
Two-step casting method was developed for preparing quasi constrained layer damping structural polymeric composite. Quasi constrained layer structural piezoelectric ceramic P82/carbon black(CB)/epoxy resin(EP) composites were successfully prepared when the ceramic content was less than 30% in volume. Dynamic mechanical analysis(DMA) showed that the composites with quasi constrained layer structure exhibited perfect damping properties. When the piezoelectric ceramic P82 volume fraction was 10%, the composite showed the highest loss factor peak value of 1.182, the widest damping temperature range of 44.2°C, and the largest loss area of 32.17. The storage moduli of composites with quasi constrained layer structures were higher than that with non quasi constrained layer structure.
Xiaoming Sang, Pengcheng Wang, Liqun Ai, Yungang Li and Jinglong Bu
W. C. Huang et al., "Dynamic Mechanical Property of Quasi Constrained Layer Structural Piezoelectric Ceramic/Carbon Black/Epoxy Resin Composites", Advanced Materials Research, Vols. 284-286, pp. 429-433, 2011