INFLUENCE OF TYPE AND CONTENT OF CHEMICAL FOAMING AGENT ON THE DYNAMIC MECHANICAL PROPERTIES OF HIGH DENSITY POLYETHYLENE-FLAX FIBER COMPOSITES

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KORD BEHROUZ; KORD BEHZAD

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Journal: IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES Year:2016 | Volume:7 | Issue:2 Page(s): 179-191

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Title

INFLUENCE OF TYPE AND CONTENT OF CHEMICAL FOAMING AGENT ON THE DYNAMIC MECHANICAL PROPERTIES OF HIGH DENSITY POLYETHYLENE-FLAX FIBER COMPOSITES

Author(s)

KORD BEHROUZ | KORD BEHZAD | Issue Writer Certificate

Keywords

FOAMED COMPOSITEQ1

AZODICARBONAMIDEQ1

SODIUM BICARBONATEQ2

CELL SIZEQ1

STORAGE MODULUSQ1

Abstract

This study aimed to evaluate the influence of type and content of chemical foaming agent on the dynamic mechanical properties of high density polyethylene-flax fiber composites. Composites were prepared via melt mixing in an internal mixer, and then foamed using single-stage batch foaming method. Two types of chemical foaming agents including AZODICARBONAMIDE (ADC) and SODIUM BICARBONATE (SB) were considered at three levels of 0, 2 and 4 per hundred resins (phr). The amount of flax fiber and coupling agent for all formulations was fixed at 60% and 2 phr, respectively. Static mechanical tests including flexural and tensile were performed on samples. The dynamic mechanical properties such as STORAGE MODULUS, loss modulus and damping factor of composites were investigated. Morphology of the samples was also evaluated by scanning electron microscopy (SEM). Results indicate that the chemical foaming agent substantially increased CELL SIZE and reduced cell density and mechanical strength of composites. Moreover, the lowest mechanical strength was observed in FOAMED COMPOSITEs with SB. SEM confirmed that the type and content of chemical foaming agent had significant influence on density reduction of FOAMED COMPOSITEs. Finally, by an increase in the chemical foaming agent content, the STORAGE MODULUS and loss modulus of samples decreased. However, by adding the chemical foaming agent to the composites, the damping factor increased. FOAMED COMPOSITEs prepared with ADC exhibited inferior STORAGE MODULUS compared to the SB.

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APA: Copy

KORD, BEHROUZ, & KORD, BEHZAD. (2016). INFLUENCE OF TYPE AND CONTENT OF CHEMICAL FOAMING AGENT ON THE DYNAMIC MECHANICAL PROPERTIES OF HIGH DENSITY POLYETHYLENE-FLAX FIBER COMPOSITES. IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES, 7(2), 179-191. SID. https://sid.ir/paper/184351/en

Vancouver: Copy

KORD BEHROUZ, KORD BEHZAD. INFLUENCE OF TYPE AND CONTENT OF CHEMICAL FOAMING AGENT ON THE DYNAMIC MECHANICAL PROPERTIES OF HIGH DENSITY POLYETHYLENE-FLAX FIBER COMPOSITES. IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES[Internet]. 2016;7(2):179-191. Available from: https://sid.ir/paper/184351/en

IEEE: Copy

BEHROUZ KORD, and BEHZAD KORD, “INFLUENCE OF TYPE AND CONTENT OF CHEMICAL FOAMING AGENT ON THE DYNAMIC MECHANICAL PROPERTIES OF HIGH DENSITY POLYETHYLENE-FLAX FIBER COMPOSITES,” IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES, vol. 7, no. 2, pp. 179–191, 2016, [Online]. Available: https://sid.ir/paper/184351/en

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