Toughening of PA6/EPDM-g-MAH/HDPE ternary blends via controlling EPDM-g-MAH grafting degree: the role of core–shell particle size and shell thickness

Dou, Rui; Zhou, Yan; Shen, Chao; Li, Lan-peng; Yin, Bo; Yang, Ming‐Bo

doi:10.1007/s00289-014-1266-3

Cited by 35 publications

(18 citation statements)

References 33 publications

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“…Although PA6 demonstrated superior properties and widely used in industrial and commercial applications, it still has some disadvantages such as high moisture absorption, poor dimensional stability, and thermal properties. In recent years, a variety of approaches including blending, grafting, coupling, and so on, are available to improve the properties of PA6, and the most often used methods are chemical modification and extruding reaction, for example, copolymerizing caprolactam and other aromatic monomers, or blending PA6 and other semi aromatic polyamides, series of semi‐aromatic polyamides based on PA6 including PA6/6T, PA6T/6I, PA6T/66, and so on, were synthesized and commercialized . Alhough the aromatic segments endow these copolymers higher thermal stability, their melt point enhances along with the ratio of aromatic components increasing and makes the melt liquidity become worse, moreover, the selection of a suitable green solvent to prepare these polyamides become new problems to researchers.…”

Section: Introductionmentioning

confidence: 99%

A novel synthetic strategy for preparing semi‐aromatic components modified polyamide 6 polymer

Peng

et al. 2018

J. Polym. Sci. Part A: Polym. Chem.

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In this work, a novel synthetic path for preparing semi-armotic components modified polyamide 6 was developed by caprolactam as solvent of purified terephthalic acid and 1,6-hexanediamine. First, the ring opening reaction and poly-addition of caprolactam were initiated by 1,6-hexanediamine to generate a prepolymer containing amino groups in both ends, then followed by the poly-condensation reaction with purified terephthalic acid, a long chain copolymer was produced, which the reaction time was reduced by 4 h compared with conventional hydrolytic ring-opening polymerization of pure caprolactam. By varying the ratio of terephthalic acid and 1,6-hexanediamine, a series of copolymers with different number average molecular weight and physical properties were prepared. Analytical results showed that the conversion percentage of caprolactam is significantly increased by the proposed method. Furthermore, this new copolymers exhibited excellent transparence and high decomposition temperature. Besides, the copolymers with average molecular weight !15,000 present good mechanical properties, making it a potentially useful application in plastics, textile yarn, and membranes. V C 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2018, 56, 959-967

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Section: Introductionmentioning

confidence: 99%

A novel synthetic strategy for preparing semi‐aromatic components modified polyamide 6 polymer

Peng

et al. 2018

J. Polym. Sci. Part A: Polym. Chem.

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“…Melt blending of multipolymers is a common approach to tailor materials in specific applications. Compared with developing a new polymer, melt blending is usually more convenient and low‐cost . It is well known that the phase morphology greatly influences the properties of the polymer blends.…”

Section: Introductionmentioning

confidence: 99%

“…The second approach was to obtain some “core–shell” toughening particles by skillfully utilizing the interfacial tension in ternary blends during the melting blending process. Yin and coworkers did a series of researches on PA6/(ethylene‐propylene‐diene monomer grafted with maleic anhydride, EPDM‐ g ‐MA)/(high‐density polyethylene, HDPE) ternary blend, in which HDPE formed the core and EPDM‐ g ‐MA formed the shell in the PA6 matrix during the extrusion, and the “core–shell” particles efficiently improved the impact strength . Shi et al .…”

Section: Introductionmentioning

confidence: 99%

Relationship between structure and properties in high‐performance PA6/SEBS‐g‐MA/(PPO/PS) blends: The role of PPO and PS

Zhang

Shentu

et al. 2017

J of Applied Polymer Sci

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This work aimed at studying the role of poly(phenylene oxide) (PPO) and polystyrene (PS) in toughening polyamide‐6 (PA6)/styrene‐ethylene‐butadiene‐styrene block copolymer grafted with maleic anhydride (SEBS‐g‐MA) blends. The effects of weight ratio and content of PPO/PS on the morphology and mechanical behaviors of PA6/SEBS‐g‐MA/(PPO/PS) blends were studied by scanning electron microscope and mechanical tests. Driving by the interfacial tension and the spreading coefficient, the “core–shell” particles formed by PPO/PS (core) and SEBS‐g‐MA (shell) played the key role in toughening the PA6 blends. As PS improved the distribution of the “core–shell” particles due to its low viscosity, and PPO guaranteed the entanglement density of the PPO/PS phase, the 3/1 weight ratio of PPO/PS supplied the blends optimal mechanical properties. Within certain range, the increased content of PPO/PS could supply more efficient toughening particles and bring better mechanical properties. Thus, by adjusting the weight ratio and content of PPO and PS, the PA6/SEBS‐g‐MA/(PPO/PS) blends with excellent impact strength, high tensile strength, and good heat deflection temperature were obtained. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45281.

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“…When PA6 was toughened and modified, a large amount of elastomer was added to improve the toughness of the composite material, such as POE‐g‐MAH, [ 10 ] PP‐g‐MAH, [ 11 ] EPDM‐g‐MAH, [ 12 ] PEI‐g‐PA12, [ 13 ] PP‐g‐(MAH‐co‐St), [ 14 ] while, the mechanical properties and thermal properties of the composite materials had different degrees of loss. In recent years, inorganic particles had been widely used as reinforcement materials in polymer composite materials, such as carbon black, montmorillonite, MoS 2 , calcium carbonate, and wollastonite, [ 15–19 ] the strength of the composite material had been improved.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the synergy influence of KSiCB and POE‐g‐MAH on mechanical properties of basalt fiber‐reinforced PA6 composites

Liang

et al. 2020

Polymer Composites

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Silicon carbon black (SiCB), a kind of biomass carbon material, is a kind of pyrolysis ash prepared by anoxic pyrolysis of rice husk. When filled as an inorganic reinforcement in the composite material basalt fiber (BF) reinforced polyamide 6 (PA6), it has synergetic effect with the POE‐g‐MAH elastomer. Differential scanning calorimetry analysis shows that KSiCB plays a role of heterogeneous nucleation in the composite material, accelerates the nucleation and crystallization speed of PA6, and can increase the strength and rigidity of the composite material. Scanning electron microscope observation of the fracture surface of the composite material shows that the addition of KSiCB can effectively “pin” and inhibit crack propagation. When the content of KSiCB is 2.5 phr, the tensile strength of the composite material KSiCB/POE‐g‐MAH/PA6(BF) reaches a maximum of 125.194 MPa, the tensile modulus is 2791.257 MPa, the bending strength reaches 192.034 MPa, and the impact toughness reaches 23.42 kJ/m2.

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Toughening of PA6/EPDM-g-MAH/HDPE ternary blends via controlling EPDM-g-MAH grafting degree: the role of core–shell particle size and shell thickness

Cited by 35 publications

References 33 publications

A novel synthetic strategy for preparing semi‐aromatic components modified polyamide 6 polymer

A novel synthetic strategy for preparing semi‐aromatic components modified polyamide 6 polymer

Relationship between structure and properties in high‐performance PA6/SEBS‐g‐MA/(PPO/PS) blends: The role of PPO and PS

Investigation of the synergy influence of KSiCB and POE‐g‐MAH on mechanical properties of basalt fiber‐reinforced PA6 composites

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