Mechanical Properties of Laminated Biodegradable Plastics Composites Made with Mg Alloy as Reinforcement
Toshihiro YAMADA, Yoshihiro TAKAHASHI, Kohji SUZUKI and Kunio FUNAMI
Abstract:To improve the mechanical properties of biological decomposition plastics, in this study, laminated reinforce plastics(LBRP) were made using AZ31 magnesium alloy as reinforcement, Bionolle as the base material, and an adhesion bonding agent based on cyanoacrylate and epoxy resin. The LBRP were laminated as one-layer and as two-layer composites using AZ31 magnesium alloy and Bionolle. The tensile strength of a layer of clad material increased with an increase in the volume fraction of Mg alloy, and was corresponding to rule of mixtures with mother and reinforced material. The strengths of the two-layer LBRP indicated were much greater than that assumed by the mixtures rule. Because the adhesion bonding agent flowed and bonded into the grooves of the conversion coating film, the tensile strength of the LBRP increased along with an increase in the arithmetical mean roughness on the conversion coating film.As a functional characteristic, a vibration test was carried out for these LBRP made with AZ31 magnesium alloy reinforcement, which has an excellent attenuation characteristic. In the result, the damping ratio and amplitude ratio for a layer of clad material are better than these for a base material. Therefore, the effect of the attenuation characteristic of AZ31 magnesium alloy is proved as beneficial in composites. Key Words:Biodegradable plastics composite materials, AZ31magnesium alloy, Bonding strength, Cladded Material, Damping ratio, Mechanical properties