Comparison of Mechanical and Thermal Properties of Polyamide-66/Rubber/Fiber Alloy Composites

Abstract

Generally, a chemical method, such as a new synthesis or the introduction of a functional group and a physical method, which blends two or more polymers at certain ratios to create a desired product, can be used to improve the properties of polymers. Among these physical methods, a polymer blend is used widely because it is relatively simple and the desired properties can be adjusted depending on the polymers used. Polyamide (nylon) with its high crystallization, mechanical properties, thermal stability and excellent anti-abrasion resistance is a typical engineering plastic material and the demands and uses for it have increased steadily since 1940. Therefore, some studies in a range of fields have focused on improving the thermal and mechanical properties of nylon. Of the polyamides formed with polymers linked by monomers-chains of amide (CONH) bonds, polyamide-66 (chemical name: polyhexa methyleneadipamide) has a high degree of crystallization and an excellent balance between its properties. A comparison of polyamide-66 (PA-66) and polyamide-6 revealed that polyamide-66 have superior thermal resistance and mechanical properties to polyamide-6. In addition, PA-66 has outstanding chemical resistance to hydrocarbon solvents, making it possible to reinforce these physical properties with glass fiber fillers. The heat deflection temperature can be improved remarkably when glass fibers are charged based on these properties, i.e. the mechanical strength and stiffness 1,2 .

Application of Solution Blow Spinning for Rapid Fabrication of Gelatin/Nylon 66 Nanofibrous Film

“…It was reported that PA66 has been successfully used to modify epoxy resins to achieve tensile toughness enhancement [26], however there has been limited work related to the use of PA66 for the modification of natural polymers, especially gelatin. Owing to its anti-abrasion resistance, high mechanical strength, light weight, relatively low cost and, very importantly, biological safety [27][28][29][30][31], PA66 can be used as a potential modification material for gelatin.…”