Toughness enhancement of polyamide 6 modified with different types of rubber: The influence of internal rubber cavitation

Burgisi, G.; Paternoster, Massimo; Peduto, N.; Saraceno, A. J.

doi:10.1002/(sici)1097-4628(19971024)66:4<777::aid-app18>3.0.co;2-o

Cited by 45 publications

(36 citation statements)

References 7 publications

(9 reference statements)

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“…The toughening of semicrystalline nylon such as nylon 6 or nylon 66 by blending with elastomers and their functional versions was extensively studied 2–4. The toughening effects of elastomers on nylon depended on such factors as matrix molecular weight,5 matrix crystallinity,6, 7 dispersed particle size,8 and elastomer type 9–11…”

Section: Introductionmentioning

confidence: 99%

Comparison of the toughening effects of different elastomers on nylon 1010

Zhang

Ren

et al. 2011

J of Applied Polymer Sci

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The toughness of three different elastomertoughened nylon 1010 blends was investigated via standard notched Izod impact test and single edge notched three-point bending test. The toughness of nylon 1010 blends varies much with different elastomer types and components. All three kinds of nylon/elastomer/ maleated-elastomer blends showed high impact strength (over 50 kJ m À2 ) as long as at appropriate blending ratios. With increasing maleated elastomer content, brittle-ductile transition was observed for all three kinds of elastomertoughened nylon 1010 blends. The number average dispersed particle size (d n ) of ethylene-1-octene copolymers or ethylene-vinyl acetate copolymers toughened nylon 1010 blends significantly decreased from over 1 to 0.1 lm with increasing corresponding maleated elastomer content. Investigation on the fracture toughness showed the dissipative energy density gradually increased with decreasing d n , while the limited specific fracture energy increased with increasing d n when d n was below 1 lm and then sharply decreased with further increasing d n . The energy consumed in the outer plastic zone was the main part of the whole energy dissipated during the fracture process.

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Section: Introductionmentioning

confidence: 99%

Comparison of the toughening effects of different elastomers on nylon 1010

Zhang

Ren

et al. 2011

J of Applied Polymer Sci

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“…There are extensive technical literatures on rubber‐toughened PA 6. Various types of rubber have been used, including styrene‐ethylene/butylene‐styrene block copolymer (SEBS) and/or SEBS grafted with maleic anhydride (SEBS‐ g ‐MA) [1–3] (EPR) and/or (EPR‐ g ‐MA) [4–13], styrene‐acrylic acid copolymer [3], acrylonitrile‐butadiene‐styrene copolymer (ABS) [14, 15], polyethylene‐octene copolymer (EOR) and/or EOR grafted with maleic anhydride (EOR‐MA) [16, 17], epoxidized ethylene propylene diene rubber [18], ethylene propylene diene rubber grafted with maleic anhydride (EPDM‐ g ‐MA) [19, 20], EPDM grafted with styrene acrylonitrile copolymer [21], core‐shell impact modifier [22, 23], polyvinyl acetate blended with ethylene‐acrylic acid copolymer [24], ethylene‐acrylic acid copolymer [25], polybutadiene [26], natural rubber with maleic anhydride (NR‐ g ‐MA) [27], carboxylated styrene‐butadiene rubber [28], acrylonitrile‐butadiene copolymer [29], carboxylated nitrile rubber [30], ultra‐fine fully‐vulcanized acrylate powdered rubber [31], and carboxylic styrene‐butadiene ultra‐fine full‐vulcanized powdered rubber [32]. Effective toughening agents must be functionalized or polar rubbers because PA 6 is a polar material.…”

Section: Introductionmentioning

confidence: 99%

Preparation of a structured acrylic impact modifier and its application in toughening polyamide 6

Zhao

Yao

Liu

et al. 2011

Polymer Engineering & Sci

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A series of poly(n‐butyl acrylate)/poly(methyl methacrylate‐co‐acrylic acid), i.e., poly(BA/MMA‐co‐AA), core‐shell structured modifiers with different contents of crosslinking agent allyl methacrylate and functional monomer were prepared, and its effects on mechanical properties of polyamide 6 (PA 6) blends were investigated. The modifiers were prepared at a solid content of 50 wt% by a seeded emulsion polymerization. Dynamic light scattering measurement showed that the particle grew without significant secondary nucleation occurring. The morphology was confirmed by means of transmission electron microscopy. Scanning electron microscopy was used to observe the morphology of the fractured surfaces. The dynamic mechanical analysis measurements indicated that the appearance of two merged transition peaks and the magnitude of the loss peak of PA 6 matrix with the addition of PBMA core‐shell modifier in the PA 6/PBMA blends were responsible for the improvement of PA 6 toughness. POLYM. ENG. SCI., 2012. © 2011 Society of Plastics Engineers

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“…Compatibility was greatly improved in g-PE=nylon blends from morphological and rheological points of view, and the results were interpreted in terms of possible chemical reactions between g-PE and nylon. Burgisi and Pternoster [12] studied the toughening enhancement of polyamide-6 blended with different types of functionalized elastomers. The best impact strength was achieved with the PA6=EPDM-g-MA blend, unlike ULDPE-g-MA, which possesses the poorest toughening efficiency even though opposite results would be expected from particle-size evaluation.…”

Section: Introductionmentioning

confidence: 99%

Studies on Impact Toughening and Thermal Properties of Nylon-6/LDPE-g-MAH Blends

Kumar

Ramanaiah

Ray

2006

Polymer-Plastics Technology and Engineering

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Polyamide (PA)-6 is an engineering thermoplastic. It finds its application in electrical, mechanical, and automotive parts due to its very high processing and excellent barrier properties to oils. Unfortunately, Nylon-6 (Ny6) is relatively high priced, has poor impact strength, particularly when notched, and poor dimensional stability as well as poor barrier properties to moisture, which limits its applicability. On the other hand, due to low cost, low coefficient of friction, lightweight, high strength, high barrier properties to moisture, good optical properties, and ease of processing, low density polyethylene (LDPE) is an ideal material to incorporate with Polyamide-6 for film, container, and many engineering applications. The present study deals with the preparation of Nylon-6 and modified LDPE (MLDPE) blends, varying the MLDPE concentration from 0 to 50 wt%. The objective of this study is to find the effect of maleic-anhydride grafted low-density polyethylaene on various mechanical properties such as tensile, impact, and flexural properties of Nylon-6. There is a decrease in tensile and flexural properties, the notched Izod impact strength increased greatly when the MLDPE content was 20%. It includes the study the effect of MLDPE on thermal properties and morphological properties of Nylon-6. The morphology of PA/MLDPE blends showed dispersed particle in the polymeric matrix.

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Toughness enhancement of polyamide 6 modified with different types of rubber: The influence of internal rubber cavitation

Cited by 45 publications

References 7 publications

Comparison of the toughening effects of different elastomers on nylon 1010

Comparison of the toughening effects of different elastomers on nylon 1010

Preparation of a structured acrylic impact modifier and its application in toughening polyamide 6

Studies on Impact Toughening and Thermal Properties of Nylon-6/LDPE-g-MAH Blends

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