A study of the melt flow behaviour of ABS/CaCO3 composites

The melt flow rate (MFR) is an important characteristic of polymer-processing properties. The MFR of an acrylnitrile–butadiene–styrene (ABS) copolymer filled with two kinds of calcium carbonates (CaCO3) was measured in this article. The results showed that the MFR increased linearly with a rise of temperature, and was a power law function of load. Furthermore, the MFR decreased basically with the addition of the filler content (φ), but it was higher than that of the unfilled ABS at φ=10%.