Effect of polyamide functionality on the morphology and toughness of blends with a functionalized block copolymer

Takeda, Y.; Keskkula, H.; Paul, Donald R

doi:10.1016/0032-3861(92)90231-k

Cited by 69 publications

(40 citation statements)

References 26 publications

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“…One approach to polymer blend compatibilization is to manipulate the interactions at the interface by the addition of "interfacial agents" that facilitate graft reactions. 3 For the polyamides/polyolefin systems, on the one hand, polyamides (PA) are frequently blended with lower modulus polymers such as rubbers 4 or polyolefins 5 to improve material properties. The addition of polyolefins lowers water absorption and reduces material cost.…”

Section: Introductionmentioning

confidence: 99%

Effect of compatibilization on the properties of HIPS/PA1010 blends

Chen

Liu

2000

J. Appl. Polym. Sci.

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Blends consisting of high-impact polystyrene (HIPS) as the matrix and polyamide 1010 (PA1010) as the dispersed phase were prepared by mixing. The grafting copolymers of HIPS and maleic anhydride (MA), the compatibilizer precursors of the blends, were synthesized. The contents of the MA in the grafting copolymers are 4.7 wt % and 1.6 wt %, and were assigned as HAM and LMA, respectively. Different blend morphologies were observed by scanning electron microscopy (SEM); the domain size of the PA1010 dispersed phase in the HIPS matrix of compatibilized blends decreased comparing with that of uncompatibilized blends. For the blend with 25 wt % HIPSg-MA component, the T c of PA1010 shifts towards lower temperature, from 178 to 83°C. It is found that HIPS-g-MA used as the third component has profound effect on the mechanical properties of the resulting blends. This behavior has been attributed to the chemical reaction taking place in situ during the mixing between the two components of PA1010 and HIPS-g-MA.

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Section: Introductionmentioning

confidence: 99%

Effect of compatibilization on the properties of HIPS/PA1010 blends

Chen

Liu

2000

J. Appl. Polym. Sci.

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“…However, the "extent of the enlargement diminishes as the hydrocarbon content of these materials increases owing to the physical issue described earlier (17,18). All nylon x type materials show small particles (6,7,17,18). Blends based on a matrix of a phase homogenized mixture of a mono and difunctional polyamide show morphology generation characteristic of the difunctional material (7) even at relatively low proportions of the difunctional component.…”

Section: Toughening Of Polyamides With Reactive Elastomersmentioning

confidence: 97%

“…From the rubber/nylon x,y interaction energy calculated from copolymer theory, the interfacial thickness was estimated. A distinct correlation 6 between the interfacial thickness and extent of amine end group reaction was established.…”

Section: B Effect Of Physical Interactions On Reactions At Interfacesmentioning

confidence: 99%

“…Blends of SEBS with either nylon 6 or nylon 6,6 lead to large rubber particles (-5 pm in diameter) that do not adhere well to the polyamide matrix and there is no toughening (2,3,6,7,10,17,18). However, when SEBS-g-MA containing about 2% MA is blended in a single screw extruder with nylon 6, very small rubber particles of about 0.05 pgm in diameter are produced.…”

Section: Toughening Of Polyamides With Reactive Elastomersmentioning

confidence: 99%

“…The particles on the high end of this scale are too large while those on the low end are too small for toughening nylon 6. There is an optimum range in between these limits where very tough materials can be produced (2,6,7,18). This entire range can be achieved with a single screw extruder for nylon 6; however, such a range cannot be achieved for nylon 6,6 without the more intensive shear during blending (24).…”

Section: Toughening Of Polyamides With Reactive Elastomersmentioning

confidence: 99%

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Reactive Compatibilization of Polymer Blends

Paul¹

SpringerReference

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Compatibilizing effect of diglycidyl ether of bisphenol-A in polymer blend system: Nylon 6 combined with poly(butyl acrylate) core and poly(methyl methacrylate) shell particles

Wang¹,

Li²

2000

J. Appl. Polym. Sci.

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ABSTRACT:A polymeric blend system of nylon 6 and a core-shell impact modifier was studied. The modifier had a poly(butyl acrylate) core and a poly(methyl methacrylate) (PMMA) shell compatibilized with an epoxy resin, diglycidyl ether of bisphenol-A (DGEBA). The compatibilization of DGEBA is achieved by the reaction of its glycidyl group with the amine groups of nylon 6, and hydrogen bonds may be generated between the hydroxyl groups and the carbonyl groups on PMMA. The effect of compatibilization was verified by the dramatic increase in impact strength and the finer dispersing of the core-shell particles in the nylon 6 matrix. The effects of compatibilization on other properties of the blend, such as the tensile and rheological properties, were also investigated.

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Effect of polyamide functionality on the morphology and toughness of blends with a functionalized block copolymer

Cited by 69 publications

References 26 publications

Effect of compatibilization on the properties of HIPS/PA1010 blends

Effect of compatibilization on the properties of HIPS/PA1010 blends

Reactive Compatibilization of Polymer Blends

Compatibilizing effect of diglycidyl ether of bisphenol-A in polymer blend system: Nylon 6 combined with poly(butyl acrylate) core and poly(methyl methacrylate) shell particles

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