Polymer blends of nylon-12 and ABS: Synthesis and characterization

Six different ratios of blends from nylon-12 and acrylonitrile-butadiene-st yrene (ABS) were prepared by the melt mixing technique. Thermal analysis of these blends were carried out by differential scanning calorimetry and the rmogravimetric analysis. It has been observed that the blend ratios such as 70/30 and 60/40 of nylon-12/ABS were more compatible in comparison with ot her blend ratios. It is evident from the values of glass transition tempera ture and activation energy. Thermogravimetric analysis shows a decreasing t rend of pyrolysis temperature of these blends with the increase in ABS conc entration. The melt-flow index and density data are found to indicate bette r physical and flow characteristics in the blend compared to pure nylon-12.