Compatibility enhancement of ABS/polycarbonate blends

Abstract

ABSTRACT:The effects of blend composition, melt viscosity of poly(acrylonitrile-butadiene-styrene) (ABS), and compatibilizing effect of poly(methyl methacrylate) (PMMA) on mechanical properties of ABS/polycarbonate (PC) blends at ABS-rich compositions were studied. As the content of PC was increased, impact strength and Vicat softening temperature (VST) were increased. As the melt viscosity of ABS was increased near to that of PC, finer distribution of dispersed PC phase and consequent enhanced impact strength and VST were observed. The compatibilizing effect of PMMA can be ascertained from the enhanced properties of 1 4 -inch notch impact strength, VST, tensile strength, and the morphology observed by a scanning electron microscope. The improved adhesion of the ABS/PC interface by PMMA changed the fracture mechanism and reduced the notch sensitivity of blends.

The recycling cycle of materials as a design project tool

“…The utilization of 30% of PC (in an ABS matrix) presented an improvement of the blend resilience, close to the parameters of the virgin ABS. These findings are similar to the work carried out by Jin et al (1997), in which the blend toughness was increased with 15e45% of PC. Moreover, in the blend 70/30, the test results showed a variation between 35 and 42 kJ m À2 for the impact strength.…”

“…Thus, the ABS contributes to a better processability and lower cost, and the PC provides good mechanical and thermal properties of the blend (Jin et al, 1997). These two materials have a strong chemical interaction.…”

“…According to Jin et al (1997), the impact strength in ABS/PC blends is improved with the addition of PC in an ABS matrix. The component responsible for the compatibility and improvement of the performance in impact strength of the blend is the butadiene.…”

Thermoplastic polyurethane elastomer/thermoplastic polyolefin elastomer blends compatibilized with a polyolefinic segment in TPU

“…Thus in a plane stress state, higher degree of plasticity and consequently a higher elongation break can be developed. 21,22 Therefore, poor adhesion at the TPU/TPO interface seems to induce a reduced thickness effect at the microscopic level and promotes plastic deformation for a higher elongation break value.…”

Effect of flame retardant containing phosphorus and silicone on thermal performance of PC/ABS

“…The combination of the advantageous properties of PC and ABS has resulted in the development of commercially available PC/ABS blends that are widely utilized as engineering thermoplastic in a diverse range of applications, particularly in the automotive industry [1,2] . Thermoplastics, including PC/ABS blends, are easily combustible; therefore, flame-retarding formulations are desirable to reduce the probability of burning in the initial phase of a fire.…”