Effects of maleated ethylene propylene diene rubber (EPDM) on the thermal stability of pure polyamides, and polyamide/EPDM and polyamide/poly(ethylene terephthalate) blends: kinetic parameters and reaction mechanism

Vieira, Iolanda Cruz; Severgnini, Vanderlei Luis Sitta; Mazera, Deise J.; Soldi, Marly S.; Pinheiro, Eduardo Antonio; Pires, Alfredo T. N.; Soldi, Valdir

doi:10.1016/s0141-3910(01)00148-3

Cited by 47 publications

(23 citation statements)

References 17 publications

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“…4, some characteristic peaks were carried out for further analysis. The peaks at 1,735 and 2,238 cm -1 were associated with the stretching vibration of carbonyl (C=O) [20][21][22] and cyano (C:N) [23]. The bands at 701 and 1,602 cm -1 were characteristic peaks of single substituted phenyl ring and vibration of benzene skeletal ring, respectively [23][24][25].…”

Section: Hdtmentioning

confidence: 95%

“…The bands at 701 and 1,602 cm -1 were characteristic peaks of single substituted phenyl ring and vibration of benzene skeletal ring, respectively [23][24][25]. Moreover, bands at 2,932 and 1,453 cm -1 were attributed to asymmetric stretching and bending vibration of [CH 2 [20,[26][27][28], and 2,874 and 1,373 cm -1 were symmetric deformation of -CH 3 [26,29,30]. Combining the FTIR spectra with characteristic groups analyzed above, no obvious shift of wave number of main groups indicated that there exist no strong specific intermolecular interactions in ASA/SAN/ACR ternary blends, and the addition of ACR to ASA/SAN binary blends is a physical action.…”

Section: Hdtmentioning

confidence: 99%

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Effect of core–shell structured modifier ACR on ASA/SAN/ACR ternary blends

Zhang

Chen

2012

J Mater Sci

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In this study, acrylonitrile-styrene-acrylic terpolymer/styrene-acrylonitrile copolymer/acrylic resin (ASA/SAN/ACR) ternary blends with different compositions were prepared by melting blending. Properties of the ternary blends were studied by differential scanning calorimetry, heat distortion temperature (HDT), Fourier transform infrared (FTIR) spectra, melt flow rate (MFR), mechanical properties, and scanning electron microscopy (SEM). The blends showed two T g s at about -48 and 109°C. FTIR analyses showed no strong interactions between the characteristic groups existed in the prepared blends. No obvious phase separation observed in SEM images indicated good compatibility in the blend system. With respect to mechanical properties and processability, the addition of ACR not only led to the improvement of impact strength and elongation at break, but also the decline of tensile strength, flexural properties, hardness, and MFR. Furthermore, heat resistance of ASA/SAN (70/ 30) binary blends decreased with the addition of ACR, but the HDT of ASA/SAN (30/70) almost remain unchanged.

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Section: Hdtmentioning

confidence: 95%

Section: Hdtmentioning

confidence: 99%

Effect of core–shell structured modifier ACR on ASA/SAN/ACR ternary blends

Zhang

Chen

2012

J Mater Sci

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“…3. The band at 1,735 cm 21 is the characteristic peak of carbonyl (C5O) [20][21][22], and the peak at 2,235 cm 21 is associated with the stretching vibration of cyano (CN) [23]. The bands at 1,601 cm 21 and 701 cm 21 are characteristic peaks of benzene ring skeletal vibration and single substituted phenyl ring, respectively [4,23,24].…”

Section: Fourier-transform Infrared Spectra Analysismentioning

confidence: 99%

Toughening modification of (Acrylonitrile‐styrene‐acrylic copolymer)/(α‐Methylstyrene‐acrylonitrile copolymer) binary blend via using different impact modifiers

Zhu

Xiang

Zhang

2014

Vinyl Additive Technology

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“…With increasing demands for high impact resistant thermoplastics, impact modifiers, such as rubbers are added to nylon 6 for toughening. Various different types of rubbers have been used as very effective impact modifiers, including styrene-ethylene/butylene-styrene block copolymer (SEBS) and/or SEBS grafted with maleic anhydride (SEBS-g-MA), 5,6 a maleic anhydride modified ethylene-propylene rubber, [7][8][9] styrene-acrylic acid copolymer, 10 a maleic anhydride modified ethylene-propylene-diene rubber, 11,12 polyethylene-octene copolymer (POE) and/ or POE grafted with maleic anhydride (POE-g-MA), inherent loss in stiffness, modulus, and yield strength because of the low rigidity of the rubber particles. Stiffness and fracture toughness are opposing performance parameters and a better balance is required to develop an efficient material.…”

Section: Introductionmentioning

confidence: 99%

Facile preparation of nylon 6 nanocomposites based on clay reinforcement and core‐shell latex toughening: Morphology, properties, and impact fracture behavior

Sun

Wang

et al. 2011

J of Applied Polymer Sci

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This work is focused on a facile route to prepare a new type of nylon 6-based nanocomposites with both high fracture toughness and high strength. A series of nylon 6-matrix blends were prepared via melting extrusion by compounding with poly (methyl methacrylate-co-butadiene-co-styrene) (MBS) or poly(methyl methacrylate-co-methylphenyl siloxane-co-styrene) (MSIS) latices as impact modifier and diglycidyl ether of bisphenol-A (DGEBA) as compatibilizer. Layered organic clay was also incorporated into above nylon 6 blends for the reinforcement of materials. Morphology study suggests that the MBS or MSIS latex particles could achieve a mono-dispersion in nylon 6 matrix with the aid of DGEBA, which improves the compatibilization and an interfacial adhesion between the matrix and the shell of MBS or MSIS. High impact toughness was also obtained but with a corresponding reduction in tensile strength and stiffness. A moderate amount of organic clay as reinforcing agent could gain a desirable balance between the strength, stiffness and toughness of the materials, and tensile strength and stiffness could achieve an improvement. This suggests that the combination of organic clay and core-shell latex particles is a useful strategy to optimize and enhance the properties of nylon 6. Morphology observation indicates that the layered organic clay was completely exfoliated within nylon 6 matrix. It is found that the core-shell latex particles and the clay platelets were dispersed individually in nylon 6 matrix, and no clay platelets were present in MBS or MSIS latex particles. So the presence of the clay in nylon 6 matrix does not disturb the latex particles to promote high fracture toughness via particle cavitation and subsequent matrix shear yielding, and therefore, provides maximum reinforcement to the polymer.

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Effects of maleated ethylene propylene diene rubber (EPDM) on the thermal stability of pure polyamides, and polyamide/EPDM and polyamide/poly(ethylene terephthalate) blends: kinetic parameters and reaction mechanism

Cited by 47 publications

References 17 publications

Effect of core–shell structured modifier ACR on ASA/SAN/ACR ternary blends

Effect of core–shell structured modifier ACR on ASA/SAN/ACR ternary blends

Toughening modification of (Acrylonitrile‐styrene‐acrylic copolymer)/(α‐Methylstyrene‐acrylonitrile copolymer) binary blend via using different impact modifiers

Facile preparation of nylon 6 nanocomposites based on clay reinforcement and core‐shell latex toughening: Morphology, properties, and impact fracture behavior

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