Application of response surface methodology for weld strength prediction in laser welding of polypropylene/clay nanocomposite

Nakhaei, Mohammadreza; Arab, Nasrollah Bani Mostafa; Naderi, Ghasem

doi:10.1007/s13726-013-0134-6

Cited by 25 publications

(24 citation statements)

References 23 publications

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“…Polypropylene (PP) as one of the most important commodity thermoplastic polymer have useful properties such as high thermal stability, low density, chemical resistance, good processability and high strength . The industrial use of this polymer is still limited because of its low tensile modulus and poor impact resistance, especially at high strain rate and low temperatures . Blending PP with rubbers such as ethylene‐propylene diene monomer (EPDM) gives tougher materials suitable for automotive, aerospace and medical applications where excellent mechanical, thermal and chemical properties are needed .…”

Section: Introductionmentioning

confidence: 99%

Study of morphology and mechanical properties of PP/EPDM/clay nanocomposites prepared using twin‐screw extruder and friction stir process

et al. 2018

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In this paper, PP/EPDM nanocomposites with 5 wt% nanoclay are fabricated by friction stir processing (FSP) and compared to the results obtained via a conventional twin screw extruder (TSE). Also, the effects of process parameters of these process on morphology and mechanical properties of this nanocomposites are investigated using Taguchi analysis. The prepared PP/EPDM/clay nanocomposites by two methods were characterized using X‐ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA) and mechanical property tests. Comparison of the results of these methods indicated that PP/EPDM/clay nanocomposite fabricated by FSP had a better dispersion of nanoclay and mechanical properties. The results show that by addition of 5 wt% nanoclay to the base material, the tensile strength and tensile modulus of FSP sample are 12% and 8% higher than the TSE sample. The TGA results shows that, the temperature at 50% weight loss for PP/EPDM blend is 382°C. While this temperature for TSE and FSP samples are 395°C and 406°C, respectively. Under optimal conditions of rotational speed of 1,200 rpm, traverse speed of 50 mm/min, shoulder temperature of 100°C and number passes of 3, simultaneous maximization of tensile strength (19.35 MPa), tensile modulus (643 MPa), impact strength (63 J/m) and elongation at break (101%) can be obtained. POLYM. COMPOS., 40:3306–3314, 2019. © 2018 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Study of morphology and mechanical properties of PP/EPDM/clay nanocomposites prepared using twin‐screw extruder and friction stir process

et al. 2018

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“…Based on the developed for model the response, a near optimal point can then be deduced. RSM is often applied in the characterization and optimization of processes . Elatharasan et al studied the effect of FSW parameters on aluminum alloy using RSM.…”

Section: Introductionmentioning

confidence: 99%

Optimization of mechanical properties of PP/EPDM/ clay nanocomposite fabricated by friction stir processing with response surface methodology and neural networks

2016

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In this article, effects of friction stir processing parameters such as tool rotational speed, traverse speed, shoulder temperature, and number of passes on tensile modulus and impact strength of polypropylene/ ethylene-propylene diene monomer/clay nanocomposite has been investigated. The Box-Behnken design with four factors at three levels was used for design of experiments. The response surface methodology was employed to develop models capable of predicting the effect of input variable on responses. A multi-layer artificial neural network with back propagation algorithm and 4 -8 -10 -2 topology was also selected for modeling. A set of data on friction stir parameters and experimental results of the mechanical properties were used to train and test the artificial neural network. POLYM. COMPOS., 38:E421-E432,

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“…The adequate precision ratio above four indicates adequate model discrimination. Lack of fit is non‐significant as it is desired .…”

Section: Resultsmentioning

confidence: 99%

Effect of process parameters on fracture toughness of PP/EPDM/nanoclay nanocomposite fabricated by novel method of heat assisted Friction stir processing

2016

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Thermoplastic elastomeric nanocomposites due to their excellent mechanical, thermal, and chemical properties have a wide application in airplane, shipbuilding, and automotive industries and medical apparatus. Friction stir processing (FSP) is a novel technique for the fabrication of composites, nanocomposites and microstructural modifications. In this paper, polypropylene/ethylene-propylene-diene monomer (PP/EPDM) nanocomposite with 5 wt% nanoclay are fabricated by FSP to determine the effect of process parameters such as tool rotational speed, traverse speed, shoulder temperature, and number of passes on total work of fracture of this nanocomposite. Response surface methodology (RSM) and Box-Behnken design were used to develop a mathematical model relating the process parameters to the total work of fracture. The results show that the total work of fracture increased with increasing the rotational speed and number of passes and decreasing the shoulder temperature. A maximum total work of fracture of 50.3 N/mm was obtained at traverse speed of 42 mm/min when other parameters were at their center level. The maximum total work of fracture of 61.8 N/mm is achieved at rotational speed of 1,200 rpm, traverse speed of 40 mm/min, shoulder temperature of 1008C, and number of passes of 3. POLYM.

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Application of response surface methodology for weld strength prediction in laser welding of polypropylene/clay nanocomposite

Cited by 25 publications

References 23 publications

Study of morphology and mechanical properties of PP/EPDM/clay nanocomposites prepared using twin‐screw extruder and friction stir process

Study of morphology and mechanical properties of PP/EPDM/clay nanocomposites prepared using twin‐screw extruder and friction stir process

Optimization of mechanical properties of PP/EPDM/ clay nanocomposite fabricated by friction stir processing with response surface methodology and neural networks

Effect of process parameters on fracture toughness of PP/EPDM/nanoclay nanocomposite fabricated by novel method of heat assisted Friction stir processing

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