Poly(phenylene oxide) and Renewable Polyamide 11 Blends Compatibilized by Ethylene-<i>n</i>-Octene Copolymer

Jeziórska, Regina; Abramowicz, Agnieszka; Szadkowska, Agnieszka; Pasnik, Anna; Spasowka, Ewa

doi:10.7569/jrm.2018.634114

Cited by 3 publications

(8 citation statements)

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“…In our previous work [15], glycidyl methacrylate grafted ethylene-n-octene copolymer (GEOC) was used as an effective compatibilizer for PA11/PPO 80/20 blend. The SEM results showed that PPO formed the continuous phase, though it was a minority component of the blend.…”

Section: Zastosowanie Modyfikowanej Krzemionki Do Kontroli Struktury Mieszanin Poliamidu 11 Z Poli(tlenkiem Fenylenu)mentioning

confidence: 99%

“…The tensile properties, as well as impact strength of PA11, PPO and PA11/PPO/A-SiO 2 composites are reported in Table 1. PA11 is a relatively tough material, showing yielding behavior in stress-strain curve [15]. On the contrary, PPO is a brittle high-strength polymer (Fig.…”

Section: Efect Of Modified Silica On Mechanical Propertiesmentioning

confidence: 99%

“…The β and γ transitions of PPO were at −18 and −118°C, respectively. The α relaxation corresponds to the glass transition temperature (T g ) [15]. The T α of PA11 in the PA11/PPO blend is 50°C.…”

Section: Efect Of Modified Silica On Dynamic Mechanical Propertiesmentioning

confidence: 99%

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The use of modified silica to control the morphology of polyamide 11 and poly(phenylene oxide) blends

Jeziórska

Szadkowska

Studziński

et al. 2021

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Silica having amine functional groups (A-SiO2) obtained by the sol-gel process was used to improve compatibility of polyamide 11 and poly(phenylene oxide) (PA11/PPO 80/20) blend via reactive extrusion in a co-rotating twin screw extruder. Amine functional groups of A-SiO2 can react with the carboxyl groups of PA11 to form graft copolymer with PA11 which can efficiently control the phase morphology of the blend. Silica, thanks to the reinforcing effect, significantly increased stiffness of PA11/PPO blend. On the other hand, it greatly improved impact strength and reduced the crystallinity without affecting the crystallization temperature of PA11due to excellent compatibilizing effect. SEM results showed that despite the lower content of PPO, it formed a continuous phase and PA11 - a dispersed. The addition of A-SiO2 changed the morphology from the droplet-matrix to co-continuous with interpenetrating phases. The greatest size-reduction of both phases, reflecting the highest impact toughness, was observed for the content of 3 wt % A-SiO2. With a higher silica loading, phase inversion was observed with the reappearance of the droplet structure, resulting in a slight decrease in impact strength and significant in elongation at break. TGA showed that the composites exhibited better thermal properties as evidenced by the higher initial degradation temperature (Tonset) and the maximum weight loss rate temperature (Tmax).

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Section: Zastosowanie Modyfikowanej Krzemionki Do Kontroli Struktury Mieszanin Poliamidu 11 Z Poli(tlenkiem Fenylenu)mentioning

confidence: 99%

Section: Efect Of Modified Silica On Mechanical Propertiesmentioning

confidence: 99%

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The use of modified silica to control the morphology of polyamide 11 and poly(phenylene oxide) blends

Jeziórska

Szadkowska

Studziński

et al. 2021

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“…Figure 8 b shows the loss moduli (G′′) as a function of temperature for PPO, PA11, and PPO/PA11/silica composites. The α relaxation peak, commonly referred to as the glass transition temperature (T g ) [ 11 , 29 , 39 ], was observed at 52 °C for PA11 and 178 °C for PPO. The T g of the blend was 5 °C lower and 13 °C higher than that of PA11 and PPO, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…In our previous research [ 29 ], glycidyl methacrylate grafted ethylene- n -octene copolymer (GEOC) was used as an effective compatibilizer for PA11/PPO 80/20 blend, with substantial improvement in impact strength. In addition, amine-functionalized silica (A-SiO 2 ) was used to control the morphology of the PA11-rich PA11/PPO blend [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Morphology and Properties of Poly(2,6-dimethyl-1,4-phenylene oxide)/Polyamide 11 Hybrid Nanocomposites: Effect of Silica Surface Modification

Jeziórska

2022

Materials

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Poly(2,6-dimethyl-1,4-phenylene oxide)/polyamide 11 (PPO/PA11 80/20) blend filled with neat (SiO2) or modified silica having amine functional groups (A-SiO2) was melt mixing in a twin-screw extruder. The silica was prepared by the sol–gel process. SEM shows that, with increasing A-SiO2 content from 1 to 5 wt.%, the morphology of PPO/PA11blend changed from droplet matrix to co-continuous with phase inversion. The phase inversion was also observed for 5 wt.% of neat silica, but the droplet-matrix structure was retained. The overall rheological and mechanical properties improvement of the A-SiO2-filled composites in comparison with the unfilled blend and neat silica counterpart was drastic, especially in terms of viscosity and stiffness. A-SiO2 improved PPO and PA11 miscibility and reduced the crystallinity of PA11, without affecting the Tc, owing to the compatibilization effect. On the other hand, neat silica slightly increased the crystallinity of PA11 and decreased the crystallization temperature of PA11 and the glass transition temperature of PPO as a result of its plasticization.

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The effect of funcionalized ethylene-n-octene copolymer on mechanical properties of bioPET with organic waste fillers

Rusin-Żurek,

Kuciel,

Kurańska

2023

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The effect of compatibilizer - ethylene-n-octene copolymer grafted with maleic anhydride(EOC-g-MAH) used in the amount of 3 wt% on tensile and flexural properties and impact strengthof bioPET with the addition of 10 wt% filler derived from organic waste (egg and mollusc shells, coffeegrounds) was investigated. EOC-g-MAH slightly decreased tensile strength, flexural strength, andmodulus of elasticity, while significantly increasing impact strength (up to 426%). Moreover, ability ofbioPET-based composites to dissipate mechanical energy was improved.

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Poly(phenylene oxide) and Renewable Polyamide 11 Blends Compatibilized by Ethylene-n-Octene Copolymer

Cited by 3 publications

References 0 publications

The use of modified silica to control the morphology of polyamide 11 and poly(phenylene oxide) blends

The use of modified silica to control the morphology of polyamide 11 and poly(phenylene oxide) blends

Morphology and Properties of Poly(2,6-dimethyl-1,4-phenylene oxide)/Polyamide 11 Hybrid Nanocomposites: Effect of Silica Surface Modification

The effect of funcionalized ethylene-n-octene copolymer on mechanical properties of bioPET with organic waste fillers

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