Effect of compatibilization on the properties of polypropylene/polyamide‐66 (75/25 wt/wt) blends

Duvall, J J; Sellitti, C.; Myers, Charles L.; Hiltner, A.; Baer, E.

doi:10.1002/app.1994.070520207

Cited by 99 publications

(73 citation statements)

References 16 publications

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“…6. The result is similar to that of the blends which used PP-g-MAH as the compatibilizer [19]. The tensile and impact strength of blends increased with the increasing of the grafting percentage of PP-g-DBM, which resulted in more interfacial reaction, thus more PP-g-PA6 was formed, while the amount of PP-g-DBM is less than 7.0 phr.…”

Section: Mechanical Propertiessupporting

confidence: 78%

Effects of polypropylene-g-dibutyl maleate on mechanical and rheological properties of PP/PA6 blends

Jia

2009

E-Polymers

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Abstract:The effects of polypropylene-grafted-dibutyl maleate (PP-g-DBM) used as compatibilizer on mechanical, rheological and morphological properties of polypropylene (PP) and nylon 6 (PA6) blends was systematically investigated in this paper. The results of Molau test, solvent extraction and differential scanning calorimetry (DSC) indicated the formation of PP-g-PA6 in vicinity of interfaces during melting extrusion. Owing to the reaction between the reactive groups of PPg-DBM and amine (-NH 2 ) end groups of PA6, the tensile and impact strength of the PP-g-DBM compatibilized PP/PA6 blends were much higher than that of the uncompatibilized PP/PA6 blends. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) results indicated that the domain sizes of the dispersed phase in the compatibilized PP/PA6 blends decreased and the interfaces become more indistinct, which indicated a clear compatibiliting effect was induced by the PP-g-DBM in the immiscible PP/PA6 blends, i.e. the PP-g-DBM was an effective compatibilizer for the PP/PA6 blends. In addition, the rheological measurements showed the PP-g-DBM compatibilized PP/PA6 blends possessed higher pseudo plasticity, melt viscosity and flow activation energy.

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Section: Mechanical Propertiessupporting

confidence: 78%

Effects of polypropylene-g-dibutyl maleate on mechanical and rheological properties of PP/PA6 blends

Jia

2009

E-Polymers

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“…Consequently, a graft copolymer with segments of polypropylene and polyamide is formed in situ at the interface. 5 The graft copolymer improves the inter-facial compatibility, associating the different segments with their respective components. In the present work, polypropylene/polyamide 6 blends prepared with and without compatibilizer have been considered.…”

Section: Introductionmentioning

confidence: 99%

Oxygen permeation through films of compatibilized polypropylene/polyamide 6 blends

Beltrame

Citterio

Testa³

et al. 1999

J. Appl. Polym. Sci.

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Polypropylene/polyamide 6 blends were prepared by melt mixing, without or with the addition of a suitable commercial product, a polypropylene grafted with 1% maleic anhydride, used as an interfacial modifier. The oxygen permeation through their films was studied as a function of temperature and the effect of the presence of the compatibilizer on the barrier properties of the material was examined. In addition, the diffusion coefficients were measured. The relationships between transport parameters and blend morphology were investigated by microscopic observations, together with chemical etchings, and a simple model was applied for interpreting the experimental permeation data. Differential scanning calorimetry was used in the determination of the degree of crystallinity of the blends.

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“…19 Beside that, the incorporation of PPgMAH causes the formation of the polyamide 6 grafted polypropylene (PA6gPP) copolymer which strengthened the interface between the PA6 and PP phases (see Figure 5). The reaction of the graft copolymer formation was previously proposed by Duvall and co-workers 21 and has been confirmed through solvent extraction. The grafted copolymers preferentially reside at the interface and improve interfacial adhesion through the chemical linkage across the interfaces.…”

Section: Mechanical Propertiesmentioning

confidence: 63%

“…The grafted copolymers preferentially reside at the interface and improve interfacial adhesion through the chemical linkage across the interfaces. 21,22 Besides, there was a strong interaction between the PA6 matrix and the silicate layers. It is believe that the hydrogen bonding could form between the amide group of the PA6gPP copolymer and octadecylamine group of the organoclay intercalant (see Figure 5).…”

Section: Mechanical Propertiesmentioning

confidence: 99%

The Effect of Rubber Type and Rubber Functionality on the Morphological and Mechanical Properties of Rubber-toughened Polyamide 6/Polypropylene Nanocomposites

Wahit

Hassan

Ishak

et al. 2006

Polym J

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ABSTRACT:Rubber toughened polyamide 6/polypropylene (PA6/PP) nanocomposites containing 4 wt % of organophilic modified montmorilonite (OMMT) were produced by melt compounding followed by injection moulding. Four different types of elastomer were incorporated into the blends as a toughener, i.e., ethylene-octene elastomer (POE), ethylene-propylene elastomer (EPR), maleated POE (POEgMAH) and maleated EPR (EPRgMAH). The influences of maleating on the interfacial adhesion and mechanical properties of the nanocomposites were investigated in term of mechanical testing, the X-ray diffraction (XRD) and scanning electron microscope (SEM) observation. The results showed that modulus and strength of the nanocomposites was not significantly affected by types of elastomer and their functionality. However, the toughness of the nanocomposites toughened by maleated elastomer was higher than the unmaleated elastomer. The SEM observation revealed that rubber functionality reduces the elastomer particle size in the PA6/PP matrix due to the in situ formation of graft copolymer between maleated elastomer and PA6 during melt processing. XRD revealed that the type of elastomer and functionality did not affect the dispersion of the organoclay in the system.

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Effect of compatibilization on the properties of polypropylene/polyamide‐66 (75/25 wt/wt) blends

Cited by 99 publications

References 16 publications

Effects of polypropylene-g-dibutyl maleate on mechanical and rheological properties of PP/PA6 blends

Effects of polypropylene-g-dibutyl maleate on mechanical and rheological properties of PP/PA6 blends

Oxygen permeation through films of compatibilized polypropylene/polyamide 6 blends

The Effect of Rubber Type and Rubber Functionality on the Morphological and Mechanical Properties of Rubber-toughened Polyamide 6/Polypropylene Nanocomposites

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