Polypropylene-polyamide 6 blends

Toughened Polypropylene-Polyamide 6 Blends Prepared by Reactive Blending... 

Scholz, P., Froelich, D., and Muller, R. (1989) Viscoelastic properties and morphology of two-phase polypropylene/ polyamide 6 blends in the melt. Interpretation of results with an emulsion model. J. Rheol, 33 (3), 481-499. 

Jambrich, M. and Durcova, O. (1993) Fibres from polypropylene-polyamid 6 blend. Fibres and Textiles East. Europe, 1(1), 34-37. 

Mouffok, S., Kaci, M. Artificial weathering effect on the strucmre and properties of polypropylene/polyamide-6 blends compatibilized with PP-g-MA. J. Appl. Polym. Sci. 132, 41722 (2015)... 

Ou Y, Lei Y, Fang X and Yang G (2004) Maleic anhydride grafted thermoplastic elastomer as an interfacial modifier for polypropylene/polyamide 6 blends, J Appl Polym Sci 91 1806-1815. 

Polypropylene-Polyamide Blends with Compatibilizing Agents... 

Jarus, D., Hiltner, A., and Baer, E., Barrier properties of polypropylene/polyamide blends produced by microlayer coextrusion, Polymer 43, 2401 (2002). 

Mini-fibers have also been observed by Liang et al. [159] on melt spinning polypropylene/polyamide blends. The diameters of the dispersed polyamide 6 phase mini-fibers are tens of microns and more. This is clearly due to the large interfadal tension in this system (polypropylene/polyamide 6) as compared to polyethylene/ polystyrene blends of Min et al. (Table 1.1). 

Germain, Y, Ernst, B., Genelot, O., and Dhamani, L. (1994) Rheological and morphological analysis of compatibilized polypropylene/polyamide blends. 

Fig. 5 a Scanning elecfxon microscope SEM) micrographs of polypropylene -polyamide blends without RS (broken under liquid nitrogen), b S EM micrographs of polypropylene polyamide blends with RS (broken under liquid nitrogen)... 

Els and McGill [48] reported the action of maleic anhydride on polypropylene-polyisoprene blends. A graft copolymer was found in situ through the modifier, which later enhanced the overall performance of the blend. Scott and Macosko [49] studied the reactive and nonreactive compatibilization of nylon-ethylene-propylene rubber blends. The nonreactive polyamide-ethylene propylene blends showed poor interfacial adhesion between the phases. The reactive polyamide-ethylene propylene-maleic anhydride modified blends showed excellent adhesion and much smaller dispersed phase domain size. 

Figure 7.33. Entrance-exit pressure drop in capiUaiy flow of polypropylene, polyamide-6, and commercial PP/PA-6 blend, Orgalloy at 230°C — line computed from Eq 7.132.

Eor polypropylene/polyamide/grafted rubber ternary blends, TEM was proved to be a good tool to study their phase morphology. Without grafting, EPR (217) or SEBS (218) formed dispersed particles together with the minor component of the blends separately however, after grafting with maleic anhydride they could encapsulate the dispersed minor component of the blends (214,217-221). 

Both from an applied and from an academic point of view, the polypropylene/ polyamide 6 system is indeed one of the most studied polymer/polymer binary systems, together with the interfacial modification possibilities induced in the morphology of the blend either by mixing during the processing steps or by the presence of interfacial modifiers. 

Polarized light microscopy micrographs of a P-nucleated isotactic polypropylene/polyamide-6 (iPP/PA-6) blend containing 5 wt% PA-6. Isothermal crystallization was carried out at = 135X for (a) t = 0 min, (b) = 21 min, (c) f = 45 min, and (d) = 60 min. (Reproduced from Menyhard, A., Varga, J., Liber, A., and Belina, G. 2005. Polymer blends based on the P-modification of polypropylene. European Polymer Journal 41 669-677 with permission from Elsevier.)... 

Xian-Wu, C., Z. Zi-Cong, X. Ying, and Q. Jin-Ping. 2010. The effect of polypropylene/ polyamide 66 blending modification on melt strength and rheologic behaviors of polypropylene. Polymer Bulletin 64 197-207. 

Bai, S.-L. and Wang, M. 2003. Plastic damage mechanisms of polypropylene/polyamide 6/ polyethylene octane elastomer blends under cyclic tension. Polymer 44 6537-6547. 

Bai, S.-L., Wang, G.-T., Hiver, J.-M., and G Sell, C. 2004. Microstructures and mechanical properties of polypropylene/ polyamide 5/polyethelene-octene elastomer blends. SlUltlSL 45 3063-3071. 

Figure 3.89 Stress vs. strain at various temperatures for SABIC Innovative Plastics Noryl GTX GTX830—30% glass fiber reinforced, polypropylene ether, PS, and polyamide blend resin.

Ube Alloy CA700 Polypropylene/polyamide, PP/PA blend Ube Industries Inc. 

Tchoudakov, R., Breuer, O., Narkis, M., and Siegmann, A. (1996) Conductive polymer blends with low carbon black loading polypropylene/polyamide. Polym. Eng. Sci., 36, 1336. 

J Duvall, C SeUitti, C Myers, A HUtner, E Baer. Effect of compatibUization on the properties of polypropylene/polyamide-66 (75/25 Wt/Wt) blends. J Appl Polymer Sci 52 195-206, 1994. 

A Perwuelz, C Gaze, W Piret. Morphological and mechanical properties of glass-fiber-reinforced blends of polypropylene/polyamide 6,6. J Thermoplastics Composite Materials 6 176-189, 1993. 

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