Several blends of polycarbonate and TPU are known. Polycarbonate/PMMA and Polycarbonate/Polystyrene (PC/PS) are common examples. Polycarbonate/Maleic anhydride grafted ABS is another example. These are polymers that have similar characteristics, but different properties. However, the differences between the two materials may make them incompatible.
Polycarbonate/Poly(methyl methacrylate) (PMMA)
Blends of Polycarbonate/Polymethyl methacrylate are made of two polymers that are crosslinked to form a single polymer. Each of these polymers has a molecular weight of between 10,000 and one million. The ratio of the two compounds is five to 95 parts by weight.
These materials are soluble in solvents. These solvents can be tetrahydrofuran or cyclohexanone. This dilute solution is then spread onto a substrate, typically glass or stainless steel. The solvent is evaporated at temperatures around 45 deg C., just below the boiling point of the polymer.
Polycarbonate/Polystyrene (PC/PS)
Polycarbonate/Polystyrenes (PC/PS) blends have been studied in detail. This study was conducted to understand the synthesis process and the properties of the blended materials. It was also done to evaluate their compatibility. It was found that the blending process can affect the miscibility of the blends.
The synthesis process involved two different methods of preparing the test specimens: hot pressing and injection molding. Injection molding was used to prepare the test bars and round plates with diameters of 25 mm. Then, these specimens were cooled in a cold press.
Polycarbonate/ABS
Polycarbonate/ABS blends (PC-ABS) are amorphous engineering thermoplastics that exhibit a unique combination of mechanical, thermal, and rheological properties. These materials provide excellent impact resistance and aesthetics, and can be tailored to specific application needs. Polycarbonate/ABS blends exhibit low porosity, good thermal conductivity, and good elongation and impact resistance.
PC/ABS blends combine the best properties of polycarbonate with the properties of acrylonitrile-butadiene-styrene. They offer excellent heat and impact resistance and are highly processable. Most commonly processed using injection, blow molding, and extrusion, PC/ABS blends are ideal for applications in a wide variety of industries.
Polycarbonate/Maleic anhydride grafted ABS
Polycarbonate/Maleic anhydrateide grafted ABS is a grafting material that exhibits excellent performance characteristics. The ABS grafted maleic anhydride contains a relatively low vinylbenzene weight and is a low-smell material.
ABS grafted with maleic anhydride improves the toughness of waste PC. It is a greener and cheaper alternative to traditional injection molding. The grafted ABS was prepared using a simple reaction extrusion process, and the grafted degree was determined by Fourier transform infrared spectroscopy and thermal analysis.
The grafted ABS exhibited increased flexural strength, while displaying a decreased impact strength. The grafted ABS was also higher in crystallinity and tensile strength. It exhibited high resistance to high temperatures.
