Polypropylene alloys and blends with thermoplastics

Utracki, L. A.; Dumoulin, M. M.

doi:10.1007/978-94-011-0521-7_3

Cited by 28 publications

(20 citation statements)

References 151 publications

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“…The acrylonitrile-butadiene-styrene (ABS)/polycarbonate (PC) structure is normally an incompatible blend, but with the addition of styrenebutadiene-styrene (SBS) copolymer, this problem of incompatibility is overcome. 1,2 The most important factor for improving the performance of polymer blends and alloys is choosing the right materials. Moreover, the right mixing conditions, the right compatibilizer, and control of blend of the resultant product are also very important.…”

Section: Introductionmentioning

confidence: 99%

Properties of acrylonitrile–butadiene–styrene/polycarbonate blends with styrene–butadiene–styrene block copolymer

Taşdemi̇r

2004

J of Applied Polymer Sci

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ABSTRACT:The importance of alloys and blends has increased gradually in the polymer industry so that the plastics industry has moved toward complex systems. The main reasons for making polymer blends are the strengthening and the economic aspects of the resultant product. In this study, I attempted to improve compatibility in a polymer blend composed of two normally incompatible constituents, namely, acrylonitrile-butadiene-styrene (ABS) and polycarbonate (PC), through the addition of a compatibilizer. The compatibilizing agent, styrene-butadiene-styrene block copolymer (SBS), was added to the polymer blend in ratios of 1, 5, and 10% with a twin-screw extruder. The morphology and the compatibility of the mixtures were examined by scanning electron microscopy and differential scanning calorimetry. Further, all three blends of ABS/PC/SBS were subjected to examination to obtain their yield and tensile strengths, elasticity modulus, percentage elongation, Izod impact strength, hardness, heat deflection temperature, Vicat softening point, and melt flow index.

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Section: Introductionmentioning

confidence: 99%

Properties of acrylonitrile–butadiene–styrene/polycarbonate blends with styrene–butadiene–styrene block copolymer

Taşdemi̇r

2004

J of Applied Polymer Sci

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“…A considerable amount of work has been reported on the properties of polymer blends, based on thermoplastic resins, such as polyethylene (PE), polypropylene (PP), poly(vinyl chloride) (PVC), poly(ethylene terephthalate) (PET), and polystyrene (PS), and on the role of compatibilizers in incompatible polymer blends with the objective of improving their recycling. 2,[5][6][7][8][9][10][11][12][13][14][15][16] Thus, the objective of this work was to investigate systematically the effect of the formulation and processing conditions on the properties of several plastic blends. The systems investigated include high-density PE/PP and PE/PS blends.…”

Section: Introductionmentioning

confidence: 99%

Compatibilization of PE/PS and PE/PP blends. I. Effect of processing conditions and formulation

Kallel

Massardier-Nageotte

Jaziri

et al. 2003

J of Applied Polymer Sci

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ABSTRACT:The objective of this work was to study the effectiveness of low-cost commercial compatibilizers and several processes (internal mixer, single-and twin-screw extruders) for two types of plastic blends: high-density polyethylene/polypropylene and high-density polyethylene/ polystyrene blends, to gain insight into the recycling of wastes from those frequently encountered mixed plastics. Blends going from a pure A to a pure B component, with and without a compatibilizer, were prepared using an internal mixer, a corotating twin-screw extruder, as well as a single-screw extruder to follow an industrial-convenient process. In both cases, the analyses of blend morphologies highlighted the poor adherence between the two phases in the uncompatibilized blends. Compatibilized blends display better adherence between phases and the ability to process blends made from both single-and twin-screw extruders. When adding a compatibilizer, the viscosity of each blend (PE/PP or PE/PS) increased due to a better adhesion of the phases. Charpy impact tests showed that the presence of the compatibilizer in PE/PS blends increased their impact properties. Indeed, the improvement of the adhesion between the two phases enabled stress transfer at the interface. A singlescrew extruder seems to be efficient as a processing method on an industrial scale when a compatibilizer is used.

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“…10,11 Only a few studies were carried out to investigate the effectiveness of the poly(styrene-b-butadiene-b-styrene) (SBS) triblock copolymer as a compatibilizer for PP/PS blends. The effects of adding the SBS triblock copolymer to PP/PS blends when PS was a matrix phase were studied by Santana and Mü ller.…”

Section: Introductionmentioning

confidence: 99%

Compatibilization of polypropylene/polystyrene blends with poly(styrene-b-butadiene-b-styrene) block copolymer

Radonjič

Musil

Šmit

1998

J. Appl. Polym. Sci.

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ABSTRACT:The compatibilizing effect of the triblock copolymer poly(styrene-b-butadiene-b-styrene) (SBS) on the morphology and mechanical properties of immiscible polypropylene/polystyrene (PP/PS) blends were studied. Blends with three different weight ratios of PP and PS were prepared and three different concentrations of SBS were used for investigations of its compatibilizing effects. Scanning electron microscopy (SEM) showed that SBS reduced the diameter of the PS-dispersed particles as well as improved the adhesion between the matrix and the dispersed phase. Transmission electron microscopy (TEM) revealed that in the PP matrix dispersed particles were complex ''honeycomblike'' aggregates of PS particles enveloped and joined together with the SBS compatibilizer. Wide-angle X-ray diffraction (WAXD) analysis showed that the degree of crystallinity of PP/PS/SBS slightly exceeded the values given by the addition rule. At the same time, addition of SBS to pure PP and to PP/PS blends changed the orientation parameters A 110 and C significantly, indicating an obvious SBS influence on the crystallization process in the PP matrix. SBS interactions with PP and PS influenced the mechanical properties of the compatibilized PP/PS/SBS blends. Addition of SBS decreased the yield stress and the Young's modulus and improved the elongation at yield as well as the notched impact strength in comparison to the binary PP/PS blends. Some theoretical models for the determination of the Young's modulus of binary PP/PS blends were used for comparison with the experimental results. The experimental line was closest to the series model line.

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Polypropylene alloys and blends with thermoplastics

Cited by 28 publications

References 151 publications

Properties of acrylonitrile–butadiene–styrene/polycarbonate blends with styrene–butadiene–styrene block copolymer

Properties of acrylonitrile–butadiene–styrene/polycarbonate blends with styrene–butadiene–styrene block copolymer

Compatibilization of PE/PS and PE/PP blends. I. Effect of processing conditions and formulation

Compatibilization of polypropylene/polystyrene blends with poly(styrene-b-butadiene-b-styrene) block copolymer

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