Effect of Rubber Content in Acrylonitrile–Butadiene–Styrene and Additional Rubber on The Polymer Blends of Polycarbonate and Acrylonitrile–Butadiene–Styrene

J of Applied Polymer Sci

2003

ABSTRACT:The effects of boiling water on the mechanical and thermal properties and morphologies of polycarbonate (PC), PC/acrylonitrile-butadiene-styrene resin (PC/ ABS), and PC/low-density polyester (PC/LDPE) blends (compositions of PC/ABS and PC/LDPE blends were 80/ 20) were studied. PC and the PC/ABS blend had a transition from ductile to brittle materials after boiling water aging. The PC/LDPE blend was more resistant to boiling water aging than PC and the PC/ABS blend. The thermal properties of glass-transition temperature (T g ) and melting temperature (T m ) in PC and the blends were measured by DSC. The T g of PC and PC in the PC/ABS and PC/LDPE blends decreased after aging. The T g of the ABS component in the PC/ABS blend did not change after aging. The supersaturated water in PC clustered around impurities or air bubbles leading to the formation of microcracks, which was the primary reason for the ductile-brittle transition in PC, and the microcracks could not recover after PC was treated at 160°C for 6 h. The PC/ABS blend showed slightly higher resistance to boiling water than did PC. The highest resistance to boiling water of the PC/LDPE blend may be attributed to its special structural morphology.

Section: Introductionmentioning

confidence: 99%

Boiling water aging of polycarbonate and polycarbonate/acrylonitrile–butadiene–styrene resin and polycarbonate/low‐density polyester blends

J of Applied Polymer Sci

2003

“…Therefore, how to improve the compatibility of an ABS/PC alloy is a problem to be solved and has attracted many researchers in the last decade. Wu et al2 successfully toughed an ABS/PC alloy by using ABS with a high rubber content, at a cost of increasing the melt viscosity. Kim et al3 improved the interface adhesion of an ABS/PC alloy by adding poly(methyl methacrylate) (PMMA) to change the fracture mechanism and to reduce the notch sensitivity of the alloy.…”

Section: Introductionmentioning

confidence: 99%

Effects of ABS‐g‐MAH on mechanical properties and compatibility of ABS/PC alloy

Chen

J of Applied Polymer Sci

et al. 2001

ABSTRACT:The effects of a compatibilizer, namely, an acrylonitrile-butadiene-styrene copolymer (ABS) grafted with maleic anhydrade (MAH) (ABS-g-MAH), on the mechanical properties and morphology of an ABS/polycarbonate (PC) alloy were studied The results showed that a small quantity of ABS-g-MAH has a very good influence on the notched Izod impact strength of the ABS/PC alloy without compromising other properties such as the tensile strength, flexural strength, and Vicat softening temperature (VST). The impact strength of the ABS/PC alloy, to a great extent, depends on the loading of ABS-g-MAH and the degree of grafting (DG) of MAH in the ABS-g-MAH. DSC analysis and SEM observation confirmed that ABS-g-MAH could significantly improve the compatibility of the ABS/PC alloy.

J. Appl. Sol. Chem. Model.

“…Increase of the molecular weight of (PC) in the polymer blend (PC/ABS) series resulted in low temperature fracture toughness-product but suffering from high melt viscosity [5]. On the other hand, increase of the ABS ratio in the blend series yielded more heterogeneous mixtures [6] and increases the product toughness [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Effect of Composition on the Rheological Properties of (PC/ABS) and (PVDF/LDPE) Blends

Nessim¹

2012

A series of blends of Acrylonitrile-Butadiene-Styrene (ABS) and Polycarbonate (PC) and another series of polyvinylidene fluoride, PVDF, and low density polyethylene, LDPE, were prepared and characterized for some of their rheological properties. The blends of a series were prepared by mixing the components, with different weight % composition, in a molten state using Brabender Plastograph. Visco-elastic parameters were measured using the capillary rheometer (Melt Index 3/80). Die-swelling rate, (B), was determined for different composition samples and correlated with the end pressure drop, (Pend), the end correction, (e), the apparent shear rate, (a), the apparent shear stress, (a), and the length-radius ratio, (L/R). The effects of blending composition on the die-swell rate, (B), the end correction, (e), and the shear strain, (SR) were also studied for the prepared series of blends.