Effect of organoclay on the properties of maleic-anhydride grafted polypropylene and poly(methyl methacrylate) blend

Hato, Mpitloane J.; Motaung, T.E.; Choi, Hyoung Jin; Scriba, Manfred; Khumalo, Vincent; Malwela, Thomas

doi:10.1002/pc.23601

Cited by 13 publications

(10 citation statements)

References 57 publications

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“…The improved effect of SEBS-g-MA on impact properties has been proven in PET/HDPE blend in several studies [27][28][29][30][31]. It was also mentioned by Jogi et al [32] and Hato et al [33] that copolymers grafted with maleic anhydride promoted the compatibility between plastics and organoclays in nanocomposites.…”

Section: Introductionmentioning

confidence: 85%

Investigation of compatibilization effects of SEBS-g-MA on polystyrene/polyethylene blend with a novel separation method in melted state

Dobrovszky

Ronkay

2016

Polym. Bull.

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Abstract:Preparing polymer blends is an effective way to tailor the good properties of plastics but the most commonly used polymers are incompatible with each other. Therefore, to reduce the interfacial tension and to achieve finer and stable morphology, a suitable copolymer or compatibilizer has to be added to blends in order to establish new interactions between the phases. However, it is difficult to determine the required amount of compatibilizers in polymer blends. As an outcome of the present research a novel separation method was developed, where the blends are investigated in melted state, utilising centrifugal force to determine the adequacy of compatibilizers. The effectiveness of styrene/ethylene/butylene/styrene block copolymer grafted with maleic anhydride (SEBS-g-MA) was verified by blending two immiscible plastics: polystyrene (PS) and high density polyethylene (HDPE). FTIR measurements were carried out to support the results of optical microscopy regarding the purity of separation. Comparing the results of morphology, rheology and mechanical properties with the novel separation method, it seems that investigation of compatibilization effect in a melted state would be suitable for predicting the adequacy of compatibilizer in blend. The minimum required amount of compatibilizer was also detectable, wherein the stress-strain curves begins to change significantly and the impact properties starting to improve in PS/HDPE blends.Keywords: compatibilization; polymer separation; polymer blend; centrifugal force; polymers in melted state.Acknowledgements: This research was realized in the framework of TÁMOP 4.2.4. A/1-11-1-2012-0001 "National Excellence Program -Elaborating and operating an inland student and researcher personal support system".

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Section: Introductionmentioning

confidence: 85%

Investigation of compatibilization effects of SEBS-g-MA on polystyrene/polyethylene blend with a novel separation method in melted state

Dobrovszky

Ronkay

2016

Polym. Bull.

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“…Copolymers containing maleic anhydride (MAH) are known as important functional polymers and are used as polar plasticizers in amorphous compatible polymers, especially PMMA. PMMA‐based blends containing MAH are well‐known systems in which hydrogen‐bonding‐type specific interactions between the hydrogens of MAH and the oxygens of carbonyl groups of PMMA are expected . Also, recent researches has confirmed the high tendency of electron‐acceptor maleimides to react with vinyl monomers makes them very able to copolymerize with more thermal stability .…”

Section: Introductionmentioning

confidence: 99%

Methyl methacrylate based copolymers and terpolymers: Preparation, identification, and plasticizing capability for a poly(methyl methacrylate) used in aviation

Atabaki

Shokrolahi

Pahnavar

2018

J of Applied Polymer Sci

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In this study, we first synthesized transparent poly(methyl methacrylate–maleic anhydride) [P(MMA–MAH)] and poly(methyl methacrylate–maleic anhydride–N‐2‐methyl‐4‐nitrophenyl maleimide) [P(MMA–MAH–MI)] via free‐radical polymerization at different monomer ratios. The synthesized polymers were characterized by titration, viscometric, spectroscopy, and thermal analyses. Higher contents of maleic anhydride (MAH) resulted in increases in the viscosity, glass‐transition temperature (Tg), and transparency. The synthesized polymers were then blended with a commercial‐grade poly(methyl methacrylate) (PMMA) used in aviation in the presence of CHCl3. According to the free volume theory, the incorporation of 5 wt % P(MMA–MAH)s or P(MMA–MAH–MI)s into the commercial PMMA resulted in a plasticizing impact on this thermoplastic, which was confirmed by the decrease in the Tg values of the blends with almost the same transparency as the initial PMMA. In fact, the higher the content of MAH was, the lower the Tg of the blends was. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46603.

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“…[1][2][3][4] The use of compatibilizers to reduce the interfacial tension and improve the interfacial adhesion between these polymers and/or fillers also formed part of a number of investigations. [5][6][7][8][9] Maleic anhydride grafting of polyolefins was found to be very effective in compatibilizing blend and composite systems.…”

Section: Introductionmentioning

confidence: 99%

“…Inorganic and cellulose-based fillers have been added into polymers and blends to reinforce the systems and improve their mechanical properties, and in some cases to compatibilize binary polymer blends. [6][7][8][9] Natural fibres are renewable and cheap and have high strength and modulus. The major limitation of using natural fillers (especially at high contents) as reinforcement is the difficulty in dispersing the particles in the polymer matrix due to the poor interfacial adhesion between the hydrophilic natural fibre filler and the hydrophobic polymer chains.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of the morphology and properties of the polypropylene/low-density polyethylene/wood powder and the maleic anhydride grafted polypropylene/low-density polyethylene/wood powder polymer blend composites

Dikobe

Luyt

2016

Journal of Composite Materials

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The properties of polypropylene/low-density polyethylene and maleic anhydride grafted polypropylene/low-density polyethylene blends, and their wood powder composites are compared in this study. The blends contained equal amounts of polymers, and the wood powder was added into the blends to form polypropylene/low-density polyethylene/wood powder and maleic anhydride grafted polypropylene/low-density polyethylene/wood powder ternary systems. The Fourier-transform infrared analysis of the blends and composites did not provide any evidence of significant interactions between the different components, although the rest of the results clearly showed that maleic anhydride grafted polypropylene and wood powder significantly interacted, and that there was some interaction between maleic anhydride grafted polypropylene and low-density polyethylene. The differential scanning calorimetry and dynamic mechanical analysis results confirmed the immiscibility of polypropylene and low-density polyethylene, and polypropylene and maleic anhydride grafted polypropylene, and indicated that wood powder was distributed in both the low-density polyethylene and polypropylene phases in the polypropylene/low-density polyethylene blend, but most probably only in the maleic anhydride grafted polypropylene phase in the maleic anhydride grafted polypropylene/low-density polyethylene blend. The polypropylene/low-density polyethylene and maleic anhydride grafted polypropylene/low-density polyethylene blends were found to be more thermally stable than the neat polymers, while the presence of wood powder in both polymer blends further increased the thermal stability of the polymers. The blends and composites with maleic anhydride grafted polypropylene showed higher tensile modulus values and lower elongation at break values than the composites with polypropylene, while the stress at break values of the two sets of samples were comparable.

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Effect of organoclay on the properties of maleic-anhydride grafted polypropylene and poly(methyl methacrylate) blend

Cited by 13 publications

References 57 publications

Investigation of compatibilization effects of SEBS-g-MA on polystyrene/polyethylene blend with a novel separation method in melted state

Investigation of compatibilization effects of SEBS-g-MA on polystyrene/polyethylene blend with a novel separation method in melted state

Methyl methacrylate based copolymers and terpolymers: Preparation, identification, and plasticizing capability for a poly(methyl methacrylate) used in aviation

Investigation of the morphology and properties of the polypropylene/low-density polyethylene/wood powder and the maleic anhydride grafted polypropylene/low-density polyethylene/wood powder polymer blend composites

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