Fire Retardancy, Thermomechanical and Thermal Properties of PP/PC Blends

Renaut, Nicolas; Duquesne, Sophie; Zanardi, S.; Bardollet, P.; Steil, M.C.; Delobel, René

doi:10.1081/ma-200065829

Cited by 13 publications

(13 citation statements)

References 30 publications

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“…Food container made from PP could not be used in oven or microwave at a relatively high temperature, electronic parts or semiconductors made from PP has small range of operating temperature, and PP coating in subsea pipelines could not withstand a relatively high crude oil temperature in a long intended lifetime. Thermal properties of PP/polycarbonate (PC) blends had been the subject of few studies and improvement in PP thermal stability was reported [5,6]. However, little information is available regarding the relation of PC content with thermal properties of PP/PC blends.…”

Section: Introductionmentioning

confidence: 99%

“…Subsequently, this work is aimed to characterize the thermal properties and morphology of PP/PC/PP-g-MA polymer blends of various compositions. PP-g-MA as compatibilizer has been suspected to improve interfacial adhesion between PP and PC phases [6], and is intended in this work to further enhance the thermal stability. …”

Section: Introductionmentioning

confidence: 99%

“…The produced blends had higher crystallization temperature of PP, because AT had a strong heterophase nucleation effect on PP. On the other hand, fire testing on intumescent fire retardant of PP/PC/ammonium polyphosphate (APP)/PPg-MA demonstrated lower heat release rate compared to PP/APP, which is desirable in fire retardant behavior as thermal degradation rate of the materials will be lower [6].…”

Section: Introductionmentioning

confidence: 99%

“…Renaut and co-workers [6] tested 75% PP, 25% PC, and optional 3% PP-g-MA or Terpolymer ethylene/acrylic ester/maleic anhydride (EBuAMA) blends, and through thermal gravimetry analysis (TGA), it was found that the compatibilized blends showed higher temperature for maximum degradation compared to the noncompatibilized blends. This suggested that thermal stability of PP/PC blends was improved with the addition of compatibilizer.…”

Section: Introductionmentioning

confidence: 99%

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THERMAL properties and morphology of Polypropylene/Polycarbonate/Polypropylene-Graft-Maleic anhydride blends

2016

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Abstract. This work investigates the effect of blending polycarbonate (PC) into polypropylene (PP) matrix polymer on thermal properties and morphology. The blends, containing 5% to 35% of polycarbonate and 5% compatibilizer, were compounded using twin-screw extruder and fabricated into standard tests samples using injection or compression molding. The compatibilizer used was polypropylene-graft-maleic anhydride (PP-g-MA). Thermogravimetric analysis (TGA) showed improved thermal degradation temperature of PP/PC/PP-g-MA blends compared to pure PP. As PC content increased, the thermal degradation temperature also improved. The highest improvement of thermal degradation temperature was 23.3%, demonstrated by 60/35/5 composition. It was found that the thermal stability of PP/PC blends was improved with the addition of PP-g-MA. PP-g-MA was suspected to enhance the phase adhesion between PP and PC, thus improving thermal stability. Microscopy analysis showed PC reinforcement phase existed as particulates dispersed in PP matrix phase. PC also was in irregular shapes of fibers or flakes in certain compositions, depending on PC fraction and compatibilizer content.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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THERMAL properties and morphology of Polypropylene/Polycarbonate/Polypropylene-Graft-Maleic anhydride blends

2016

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“…PP is well-known for having low thermal stability or low heat distortion temperature. Thermal properties of PP/PC blends had been the subject of few studies and improvement in PP thermal stability was reported [3][4][5]. Upon the positive outcomes in the thermal area of PP/PC blends, more research especially in mechanical properties area is needed to ensure the blend is mechanically sound and usable.…”

Section: Introductionmentioning

confidence: 99%

Tensile Behaviour and Morphology of Polypropylene/Polycar-bonate/Polypropylene-graft-maleic Anhydride Blends

2017

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Abstract. This work investigates the effect of blending polycarbonate (PC) into polypropylene (PP) matrix polymer on mechanical tensile properties and morphology. The blends, containing 5% to 35% of polycarbonate and 5% compatibilizer, were compounded using twin-screw extruder and fabricated into standard tests samples using injection molding. The compatibilizer used was polypropylene-graft-maleic anhydride (PP-g-MA). The values of tensile strengths and moduli for PP/PC/PP-g-MA blends were lower than that of pure PP. Tensile strength of pure PP was 37.74 MPa, whereas the highest tensile strength among the blends was 32.60 MPa at 70/25/5 composition. The pattern for the blends is non-linear, where the optimum amount of PC for tensile strength was 25%. Addition of PP-g-MA imparts positive effect towards the blends, shown by higher value for both tensile strength and tensile modulus compared to the noncompatibilized blend. Microscopy analysis showed PC reinforcement phase existed as particulates dispersed in PP matrix phase. PC particulates size depends on its fraction and compatibilizer content. As PC content in compatibilized blends increases, its particulate size also increases.

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A thermomechanical study on selective dispersion and different loading of graphene oxide in polypropylene/polycarbonate blends

Tiwari

Oraon

Adhikari

et al. 2017

J of Applied Polymer Sci

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Carbon nanofiller reinforced polymeric materials offer the opportunity to obtain materials with desired properties. In the present study, effects of different loading of graphene oxide (GO) on the compatibility, thermomechanical, and morphological properties of incompatible polypropylene (PP)/polycarbonate (PC) polymer blends were investigated. The neat blend and blend nanocomposites were prepared by using a twin‐screw extruder under controlled shear pressure to explore the role of GO on thermomechanical properties of blends. Fourier transform infrared analysis showed the presence of GO in PC phase which was further confirmed by differential scanning calorimetry and morphological analysis. It was observed that up to loading of 0.5%, GO preferable dispersed in only PC phase and then dispersed in both PP and PC phase with further increase in GO loading due to increase in viscosity of PC phase. Field emission scanning electron microscopy investigation of PNCs showed the coalescence of PC phase with increase of GO loading. Tensile analysis confirmed that 1% of GO loading produced highest reinforcement in thermomechanical properties and further increase of GO loading deteriorate the mechanical properties. Dynamic mechanical analysis also showed high storage modulus for 1% loading. Thermal stability of 1% GO loaded nanocomposite was found to be higher than other blend nanocomposites. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45062.

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Fire Retardancy, Thermomechanical and Thermal Properties of PP/PC Blends

Cited by 13 publications

References 30 publications

THERMAL properties and morphology of Polypropylene/Polycarbonate/Polypropylene-Graft-Maleic anhydride blends

THERMAL properties and morphology of Polypropylene/Polycarbonate/Polypropylene-Graft-Maleic anhydride blends

Tensile Behaviour and Morphology of Polypropylene/Polycar-bonate/Polypropylene-graft-maleic Anhydride Blends

A thermomechanical study on selective dispersion and different loading of graphene oxide in polypropylene/polycarbonate blends

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