Preparation and Properties of a Fragrant Acrylonitrile–Butadiene–Styrene/Polycarbonate Alloy

Abstract

The purpose of the present work was to upgrade the functionality and applicability of acrylonitrile–butadiene–styrene copolymer (ABS)/polycarbonate (PC) alloys by means of a simple blending technique. A fragrant ABS/PC alloy was prepared by adding a fragrance to the ABS/PC matrix. By tests of volatility, mechanical properties, and processing fluidity and by SEM measurements it was found that the essence not only endowed ABS/PC alloy with fragrance but also acted as a lubricant and surface treatment agent during processing. With increasing fragrant masterbatch content, the impact strength and rate of elongation at break decreased and the processing properties improved, while the yield strength remained almost unchanged. The dosage of fragrant masterbatch needed to be kept under 5 phr (parts per hundred parts resin by weight) to obtain the best combination of properties of the fragrant ABS/PC alloy. In addition, the volatility of the essence was greatly affected by the nature of the essence, the ambient temperature, and the polymer matrix. The experimental results show that the fragrance of the ABS/PC alloy can be maintained for a long time at room temperature.