NANOCLAY EFFECT ON THE FLOW AND THERMAL PROPERTIES OF PP/SEBS-G-MA BLEND

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RANJBAR MOSTAFA; SABETZADEH MARYAM; AREFAZAR AHMAD; BAKHSHANDEH GHOLAM REZA; RANJBAR AZAM

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Journal: Iranian Journal of Polymer Science and Technology Year:2014 | Volume:26 | Issue:5 (ISSUE NO. 127) Page(s): 403-412

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Title

NANOCLAY EFFECT ON THE FLOW AND THERMAL PROPERTIES OF PP/SEBS-G-MA BLEND

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Keywords

NANOCLAYQ2

POLYPROPYLENEQ2

SEBS-G-MA COPOLYMERQ1

FLOW BEHAVIORQ1

THERMAL PROPERTIESQ2

Abstract

The effect of NANOCLAY (Cloisite Ò 15A) was studied in relation to the FLOW BEHAVIOR, mechanical and THERMAL PROPERTIES of POLYPROPYLENE/maleic anhydride-g-(styrene-ethylene-butylene-styrene) triblock copolymer (PP/ SEBS (15%)-g-MA) blend. In this regard, the composites based on the blend and various amounts of NANOCLAY (I, 3, 5 wt%) were melt compounded using an internal mixer at the temperature of 190oC, rotor speed of 75 rpm for 12 min. The prepared samples were compression molded in a hot-press machine under the conditions of 190oC, 31 MPa pressure for 9 min to obtain the sheets in various thicknesses. The sheets were then cooled to ambient temperature with cooling water at the rate of 1.5oC.s-1. X-ray diffraction (XRD) and transmission electron microscopy (TEM) were used to study the structure and morphology of the samples. In addition, the mechanical and THERMAL PROPERTIES were determined by standard methods. The results of X-ray diffraction and transmission electron photographs confirmed both exfoliated and intercalated structures in the prepared samples. There were balanced strength toughness properties in all the prepared nanocomposites by addition of both SEBS- g-MA and clay simultaneously. The measurement of rheological properties showed that as the shear rate increased, the apparent viscosity of the samples decreased (shear thinning behavior). Gradual increase in incorporation of NANOCLAY also decreased the melt flow index (MFI) values. In addition, increases in NANOCLAY content had an insignificant effect on the thermal behavior and in that respect there were slight increases in degree of crystallinity, heat deflection temperature (HDT) as well as Vicat softening point by slight increase in temperature.

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APA: Copy

RANJBAR, MOSTAFA, SABETZADEH, MARYAM, AREFAZAR, AHMAD, BAKHSHANDEH, GHOLAM REZA, & RANJBAR, AZAM. (2014). NANOCLAY EFFECT ON THE FLOW AND THERMAL PROPERTIES OF PP/SEBS-G-MA BLEND. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), 26(5 (ISSUE NO. 127)), 403-412. SID. https://sid.ir/paper/393726/en

Vancouver: Copy

RANJBAR MOSTAFA, SABETZADEH MARYAM, AREFAZAR AHMAD, BAKHSHANDEH GHOLAM REZA, RANJBAR AZAM. NANOCLAY EFFECT ON THE FLOW AND THERMAL PROPERTIES OF PP/SEBS-G-MA BLEND. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN)[Internet]. 2014;26(5 (ISSUE NO. 127)):403-412. Available from: https://sid.ir/paper/393726/en

IEEE: Copy

MOSTAFA RANJBAR, MARYAM SABETZADEH, AHMAD AREFAZAR, GHOLAM REZA BAKHSHANDEH, and AZAM RANJBAR, “NANOCLAY EFFECT ON THE FLOW AND THERMAL PROPERTIES OF PP/SEBS-G-MA BLEND,” IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), vol. 26, no. 5 (ISSUE NO. 127), pp. 403–412, 2014, [Online]. Available: https://sid.ir/paper/393726/en

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