Rheology Enhancement in PC/ABS Blends

Abstract

Polycarbonate is a very broadly used material across various industries; however, in order to improve its processability, it is generally blended with acrylonitrile–butadiene–styrene copolymer (ABS). As presented here, the proportion of ABS used is a highly important parameter, since it can affect the useful properties of polycarbonate such as heat resistance and toughness (the Figure shows the variation of toughness (Izod impact) with amount ABS used).

Mechanical response of polycarbonate nanocomposites to high velocity impact

“…Over the last few decades, due to its unique property combination of high mechanical strength, outstanding impact resistance, good chemical resistance and excellent transparency, polycarbonate (PC) has been widely used as a shield or antiballistic material in areas of military, sports and personal protection [7][8][9][10]. Blast and ballistic impacts tend to have dynamic loads that overwhelm the static load resistance of a material.…”

Flame‐retardant polycarbonate/acrylonitrile‐butadiene‐styrene based on red phosphorus encapsulated by polysiloxane: Flame retardance, thermal stability, and water resistance

“…Polycarbonate/acrylonitrile‐butadiene‐styrene (PC/ABS) alloys are widely used in electrical, automotive, and high technology fields due to its high performance, including toughness, heat resistance, and ease of processing at a lower cost 1. PC has a relatively high tendency to charring with a V‐2 rating in the UL‐94 test itself;2 however, ABS is easily combustible, and it will decrease the UL‐94 rate of PC corresponding to the content of ABS (see: the content of ABS reaches 30 wt %, UL‐94 rate of the blend generally decreases to NR), and then more effective flame retardance will be required in PC/ABS 1, 3, 4. Flame retardants in commercial use for PC are mostly halogen‐containing, phosphorus‐containing products and siloxanes, while flame retardants in commercial use for ABS are mostly halogen‐containing and silicon containing compounds.…”

The effect of oligomer blending on the flow properties of polycarbonate

“…[1][2][3][4][5] These desirable properties, combined with superior dimensional stability and good electrical resistance, have led to wide applications in automobile parts, electrical parts, optical materials, and steam sterilizable medical equipment. However, PC is not easily processed due to its high melt viscosity.…”