Juniper Publishers Journal of Polymer science

                                                  JUNIPER PUBLISHERS-   ACADEMIC JOURNAL OF POLYMER SCIENCE Opinion The sulfur cure system in the ethylene-propylene-diene (EPDM)-based Curtain Wall Seal (CWS) has two accelerators, adding up to 2.75 parts per hundred rubber (phr) by weight, and two activators (ZnO: 5phr, stearic acid:1phr) [1]. In total, 8.75phr chemicals are used to fully cure the article with 1phr elemental sulfur. In rubber formulations, chemical curatives are indispensable and once reacted with sulfur at elevated temperature, they produce crosslinks between the rubber chains and provide shape stability, which is essential for the performance, durability and life of the final product in service. Excessive use of chemical curatives is harmful to health, safety, and the environment. According to the European Directive 67/548/E...

JUNIPER PUBLISHERS- ACADEMIC JOURNAL OF POLYMER SCIENCE Abstract Composite piezoelectric thick films are envisioned for energy harvesting, energy storage, and advanced sensor applications. This work focuses on PZT-epoxy-aluminum thick films that were fabricated using a two-step spin coat deposition and annealing method. The volume fraction of the PZT filler ranged from 0.2 to 0.4, and the aluminum volume fraction was varied from 0.10 to 0.17 for each PZT volume fraction, respectively to ascertain the percolation range of the devices and the influence of the aluminum on the device piezoelectric and dielectric properties. An aluminum filler was included in the PZT-epoxy composite to enhance the polarization process of the composite and to enhance the dielectric properties of the composite. The piezoelectric strain coefficients d 33 and d 31 , and capacitance were measured and studied as a function of aluminum volume fraction and top electrode material (silver and g...