Morphology and property relationships in ternary blends of polyethylene/polyamide‐6/compatibilizing agents

Chandramouli, K.; Jabarin, S. A.

doi:10.1002/adv.1995.060140104

Cited by 32 publications

(15 citation statements)

References 23 publications

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“…A small amount ($ 1%) is required for the maximum improvement in room temperature mechanical properties and maximum reduction in dispersed phase size. Adding more than this amount does not, in general, improve performance, 10,22,28 although higher levels of compatibilizer were found to be necessary in certain cases. 27 2.…”

Section: Introductionmentioning

confidence: 86%

“…27 2. Some studies investigated changes in room temperature mechanical properties with compatibilization 22,25,27,28 ; however, some studies were interested primarily in rheological behavior. 27,29,30,33 The addition of compatibilizer raises G 0 at low frequencies, 29 reduces the interfacial tension, 11 and increases the steady-shear melt viscosity.…”

Section: Introductionmentioning

confidence: 98%

“…27,29,30,33 The addition of compatibilizer raises G 0 at low frequencies, 29 reduces the interfacial tension, 11 and increases the steady-shear melt viscosity. 17,22 3. The addition of compatibilizer raises the melting temperature of the PE phase and reduces the melting temperature of the PA phase.…”

Section: Introductionmentioning

confidence: 99%

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The effect of zinc oxide addition on the compatibilization efficiency of maleic anhydride grafted high‐density polyethylene compatibilizer for high‐density polyethylene/polyamide 6 blends

Chatreenuwat

Nithitanakul

Grady

2006

J of Applied Polymer Sci

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A high-density polyethylene with grafted maleic anhydride units has been investigated as a compatibilizer for high-density polyethylene with polyamide 6. The material acts as an effective compatibilizer, causing a marked reduction in dispersed phase size as well as an increase in tensile strength and toughness. Compatibilizer also affects the glass-transition temperature, crystallization kinetics, and amount of crystalline material for certain blend compositions. The addition of zinc cations, which are effective in increasing ethylene-acid copolymer compatibilizer performance in low-density polyethylene/polyamide blends, has little, if any, effect on compatibilizer performance in these high-density polyethylene/polyamide blends.

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Section: Introductionmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 98%

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The effect of zinc oxide addition on the compatibilization efficiency of maleic anhydride grafted high‐density polyethylene compatibilizer for high‐density polyethylene/polyamide 6 blends

Chatreenuwat

Nithitanakul

Grady

2006

J of Applied Polymer Sci

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“…The properties of the blends level off after a compatibilizer concentration of 3 wt %. 44 Upon compatibilization, the compatibilizer will locate at the interface between matrix and the dispersed phase by increasing the interfacial thickness and adhesion, thereby interlayer slip is decreased and viscosity is increased. According to Okoroafar et al, 24 the viscosity of the compatibilized blend is given by: …”

Section: Effect Of Compatibilizationmentioning

confidence: 99%

Melt rheology and morphology of LLDPE/EVA blends: Effect of blend ratio, compatibilization, and dynamic crosslinking

Moly

Oommen

Bhagawan

et al. 2002

J of Applied Polymer Sci

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ABSTRACT:The melt rheological properties of linear low-density polyethylene (LLDPE)/ethylene vinyl acetate (EVA) blends were investigated with special reference to the effect of blend ratio, temperature, shear rate, compatibilization, and dynamic vulcanization. The melt viscosity of the blends determined with a capillary rheometer is found to decrease with an increase of shear rate, which is an indication of pseudoplastic behavior. The viscosity of the blend was found to be a nonadditive function of the viscosities of the component polymers. A negative deviation was observed because of the interlayer slip between the polar EVA and the nonpolar LLDPE phases. The melt viscosity of these blends decreases with the increased concentration of EVA. The morphology of the extrudate of the blends at different shear rates and blend ratios was studied and the size and distribution of the domains were examined by scanning electron microscopy. The morphology was found to depend on shear rate and blend ratio. Compatibilization of the blends with phenolic-and maleic-modified LLDPE increased the melt viscosity at lower wt % of compatibilizer and then leveled off. Dynamic vulcanization is found to increase the melt viscosity at a lower concentration of DCP. The effect of temperature on melt viscosity of the blends was also studied. Finally, attempts were made to correlate the experimental data on melt viscosity and cocontinuity region with different theoretical models.

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“…On the contrary, relatively few data23–25 can been found in the scientific literature on the reactive compatibilization of PE/polyamide blends with SEBS‐ g ‐MA. Chen and Harrison23 used six different CPs, including two grades of SEBS‐ g ‐MA, to compatibilize 80/20 blends of PE with an amorphous polyamide with the aim of producing PE films reinforced with polyamide fibers for balloon applications.…”

Section: Introductionmentioning

confidence: 99%

Reactive Compatibilizer Precursors for LDPE/PA6 Blends, 4

Filippi

Yordanov

Minkova

et al. 2004

Macro Materials & Eng

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Summary: The effectiveness of some thermoplastic elastomers grafted with maleic anhydride (MA) or with glycidyl methacrylate (GMA) as compatibilizer precursors (CPs) for blends of low density polyethylene (LDPE) with polyamide‐6 (PA) has been studied. The CPs were produced by grafting different amounts of MA or GMA onto a styrene‐block‐(ethylene‐co‐1‐butene)‐block‐styrene copolymer (SEBS) (KRATON G 1652), either in the melt or in solution. A commercially available SEBS‐g‐MA copolymer with 1.7 wt.‐% MA (KRATON FG 1901X) was also used. The effect of the MA concentration and of other characteristics of the SEBS‐g‐MA CPs was also studied. The specific interactions between the CPs and the blends components were investigated through characterizations of the binary LDPE/CP and PA/CP blends, in the whole composition range. It was demonstrated that the SEBS‐g‐GMA copolymers display poor compatibilizing effectiveness due to cross‐linking resulting from reactions of the epoxy rings of these CPs with both the amine and the carboxyl end groups of PA. On the contrary, the compatibilizing efficiency of the MA‐grafted elastomers, as revealed by the thermal properties and the morphology of the compatibilized blends, was shown to be excellent. The results of this study confirm that the anhydride functional groups possess considerably higher efficiency, for the reactive compatibilization of LDPE/PA blends, than those of the ethylene‐acrylic acid and ethylene‐glycidyl methacrylate copolymers investigated in previous works.SEM micrograph of the 75/25 LD08/PA blend (with 2 phr SEBSMA1).magnified imageSEM micrograph of the 75/25 LD08/PA blend (with 2 phr SEBSMA1).

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Morphology and property relationships in ternary blends of polyethylene/polyamide‐6/compatibilizing agents

Cited by 32 publications

References 23 publications

The effect of zinc oxide addition on the compatibilization efficiency of maleic anhydride grafted high‐density polyethylene compatibilizer for high‐density polyethylene/polyamide 6 blends

The effect of zinc oxide addition on the compatibilization efficiency of maleic anhydride grafted high‐density polyethylene compatibilizer for high‐density polyethylene/polyamide 6 blends

Melt rheology and morphology of LLDPE/EVA blends: Effect of blend ratio, compatibilization, and dynamic crosslinking

Reactive Compatibilizer Precursors for LDPE/PA6 Blends, 4

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