Grafting of polyamide 6 on a styrene–acrylonitrile maleic anhydride terpolymer: melt rheology at the critical gel state

Sailer, Christian; Weber, Martin; Steininger, H.; Handge, Ulrich A.

doi:10.1007/s00397-009-0359-7

Cited by 14 publications

(15 citation statements)

References 32 publications

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“…In the case of blends which display a nodular morphology as shown in Figure 7, several phenomena can explain this particular rheological behavior. According to Sailer et al,21, 22 the appearance of the plateau is related to three‐dimensional network creation with a high degree of interconnectivity between the two polymer phases. This network is responsible for the suppression of blends polymer flow and thus, yield stress properties of the blends.…”

Section: Resultsmentioning

confidence: 99%

New Polymer Materials for Steel/Polymer/Steel Laminates in Automotive Applications

Avril

Rahme

Doux

et al. 2012

Macro Materials & Eng

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International audienceThe present works aims to develop multi-materials such as steel/polymer/steel hybrid system for weight savings in automotive industries. This laminate must be compatible with processing on the industrial line (steel/polymer lamination under 200 degrees C) and the structure must be flow-resistant during the paint process curing (200 degrees C for 30min). Consequently, a yield stress polymer system based on compatibilized PA11/copolymer of ethylene and octene blends has been developed. The yield stress property (for T>200 degrees C) depends on the phase concentration and compatibilization strategy. It is observed that an annealing process (heating treatment for 1h at 200 degrees C), simulating the painting process, provides a strong benefit for the polymer/steel properties after aging under humidity conditions

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Section: Resultsmentioning

confidence: 99%

New Polymer Materials for Steel/Polymer/Steel Laminates in Automotive Applications

Avril

Rahme

Doux

et al. 2012

Macro Materials & Eng

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“…This viscoelastic change is related to the presence of entangled macromolecular chains formed either by the crosslinking of EPR or by (PP-EPR) copolymers at the interface between the two polymer phases. Generally,s uch a plateau is attributed to the formation of at hree-dimensional network with ah igh degree of inter-connectivity between the two phases preventing the polymer flow (Sailer et al, 2007;Sailer et al, 2009;Avril et al, 2012). In this case, we can thus assume that the secondary plateau is probably due to the presence of specific interactions between phases inducing long relaxation time of both dispersed phase and the shape of the droplets (Graebling et al, 1993).…”

Section: R Esults and Discussionmentioning

confidence: 97%

High Shear Processing of (PP/EPR)/Silica Nanocomposites: Improvement of Morphology and Properties

Louizi

Massardier

Mélis

et al. 2014

International Polymer Processing

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The aim of this article is to upgrade the performance of polypropylene/ethylene propylener ubber (PP/EPR) blends by addition of hydrophobic nanosilica (SiR805) and using \ high shear processing technology" .T he morphological developments, mechanical and rheological properties of these composites were investigated as afunction of processing conditions. High shear processing has proved to be an efficient process to decrease the size of the dispersed phase (EPR) up to 300 nm and to disperse finely nanosilica particles to less than 30 nm especially at 800 min -1 .M oreover, the morphology stability of the nanocomposite is ascribed to the formation of ac ore shell structure (EPR nodules =core; nano-silica =shell) and selective location of nanosilica at the interface. More importantly, this core-shell structure is favoured to enhance the impact strength of the (PP/EPR)/3 wt% SiR805 nanocomposite. In agreement to the obtained morphology, the improvement (about 60 %) of elongation at break attests ag ood adhesion between phases due to high shear effect as highlighted by viscoelastic properties. Therefore, high shear processing technology has proved to be ar elevant method to prepare nanocomposites with high performances without adding any additive and offers new perspectivesf or recycling and lightening structures.

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“…Finally, several investigations based upon rotational and extensional rheometry, demonstrated the impact of reactive compatibilization on rheological properties of PA 6/SAN blends with different types of morphology and varying concentration of compatibilizer. [18][19][20][21] In summary, various methods to compatibilize blends of PA 6 and styrenic polymers were investigated and their influence on the macroscopic properties was discussed.…”

Section: Introductionmentioning

confidence: 99%

Micromechanical processes and failure phenomena in reactively compatibilized blends of polyamide 6 and styrenic polymers. II. Polyamide 6/styrene‐acrylonitrile copolymer blends

Handge

Sailer

Steininger

et al. 2009

J of Applied Polymer Sci

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This work reports on morphological, mechanical, and micromechanical properties of polyamide 6 (PA 6), a styrene-acrylonitrile copolymer (SAN), and their blends, which were reactively compatibilized using a styrene-acrylonitrile maleic anhydride (SANMA) terpolymer. Transmission electron microscopy (TEM) investigations revealed the phase morphology of the blends, which is characterized by inclusions of the minor component in the matrix of the major phase. The blend with 50% PA 6 and 50% SAN depicted a cocontinuous morphology. Using a microtensile device for TEM, the samples were deformed under uniaxial loading in the ''dry'' state (characterized by a zero water content in the PA 6 phase) and in a ''wet'' state (with water in the PA 6 phase). Whereas the dry blends behaved brittle, the wet blends showed a larger ductility with the formation of deformation bands in the matrix (PA 6 or SAN), which were initiated by stress concentration at the SAN and PA 6 particles, respectively. In the interface of blends with a PA 6 matrix and SAN inclusions, two phenomena were observed: partial cavitation and debonding on the one hand and partial fibrillation on the other hand.

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Grafting of polyamide 6 on a styrene–acrylonitrile maleic anhydride terpolymer: melt rheology at the critical gel state

Cited by 14 publications

References 32 publications

New Polymer Materials for Steel/Polymer/Steel Laminates in Automotive Applications

New Polymer Materials for Steel/Polymer/Steel Laminates in Automotive Applications

High Shear Processing of (PP/EPR)/Silica Nanocomposites: Improvement of Morphology and Properties

Micromechanical processes and failure phenomena in reactively compatibilized blends of polyamide 6 and styrenic polymers. II. Polyamide 6/styrene‐acrylonitrile copolymer blends

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