부산대학교 도서관

The primary purpose of this study is to provide a manufacturing process for a polymer carrier tape for a passive device to sol problems of insufficient strength and recycling with the conventional paper carrier tape. To achieve the purpose, polymer of polyolefin (e.g., LDPE, HDPE), maleic anhydride grafted polyolefin or cross-linked polyolefin blended with calcium carbonate, ethylene-vinyl acetate (EVA) and traces of anti-oxidant in a polymer compounding process to produce an admixture to replace conventional paper carrier tape. The experiment executes a primary compounding process using CaCO3/EVA/ polyolefin polymer in different ratios to manufacture the admixture having a white appearance, flexibility, and low rebound that are similar to a paper tape. The tensile mechanical properties of the specimens with thickness of 0.6 mm from these composites were measured the effect of the different ratios on the properties of these composites. In the different CaCO3 contents results, it showed that the addition of the CaCO3 provoked a decrease on the tensile strength and elongation of composites. On the other hand, the tensile strength increased with increasing weight fraction of the HDPE, MA-g-HDPE and cross-linked LDPE. The elongation of blends only decreased with increasing weight fraction of the HDPE. All of the blends have better flexibility, because small amount of EVA dispersed in the matrix could provide flexibility and low deformation.