The effect of melt viscosity on thermal efficiency for single screw extrusion of HDPE

Vera-Sorroche, Javier; Kelly, Adrian L.; Brown, Edward A.; Gough, Tim; Abeykoon, Chamil; Coates, Phil; Deng, Jiankang; Li, Kang; Harkin‐Jones, Eileen; Price, Mark

doi:10.1016/j.cherd.2013.12.025

Cited by 34 publications

(28 citation statements)

References 8 publications

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“…The resulting change in rheological behaviour, however, is not expected to have a significant effect on the interpretation of the data related to screw speed, which is the only relevant related process variable. Table 1 outlines, in addition to composition ratio, other factors known to affect the optimisation of single screw extrusion operations [12][13][14][15] (screw speed; barrel temperature) and were varied as listed. The dependent responses to the selected independent factors include:…”

Section: Two Polypropylenes (Pp)mentioning

confidence: 99%

“…In subsequent studies, Deng et al 12 introduced new real-time energy monitoring methods to investigate how process settings affect energy efficiency and melt consistency. Developed from the initial studies reported by Kelly et al 13 , Vera-Sorroche et al 14,15 measured thermal homogeneity and energy efficiency in extrusion processes, which relate to extruder screw geometry, screw rotation speed and polymer rheological properties.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of process parameters related to the single-screw extrusion of recycled polypropylene blends by using design of experiments

Haworth

Mascia

2016

Journal of Plastic Film & Sheeting

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Section: Two Polypropylenes (Pp)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of process parameters related to the single-screw extrusion of recycled polypropylene blends by using design of experiments

Haworth

Mascia

2016

Journal of Plastic Film & Sheeting

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“…They release harmful amines, allergens, carcinogens, and other poisonous compounds that caused cancer, allergy and are detrimental to human health and environment. Javier Vera-Sorroche at el, 2014 [14] in this work, a highly instrumented single screw extruder has been used to study the effect of polymer rheology on the thermal efficiency of the extrusion process. Three different molecular weight grades of high density polyethylene (HDPE) were extruded at a range of conditions.…”

Section: IVmentioning

confidence: 99%

Designing of Multi-cavity Extrusion Die to Increase Productivity: A survey and perspective

Bhandari¹

2018

IJRASET

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Extruded rubber is used extensively in many applications and products, either alone or in combination with other materials. It is often desirable to find the best possible way to maximize the production output with least possible capital input and changes in existing plant layout. The changes that are permitted are in the department of pre-processing that is designing stage and machine selection. The proper design of an extrusion die is extremely important to achieve the desired shape and accurate dimensions of the extruded product also to ensure that production level will produce maximum profit and lead minimum cost. The increase in productivity can be defined as the effectiveness of productive effort, especially in industry, as measured in terms of the rate of output per unit of input. Here the productivity is considering the re-designing of single cavity die to multi-cavity die, the die is a metal block that is used for forming materials like sheet metal, plastic, rubber, etc. The scope of current study takes into consideration of re-designing the most commonly used design of rubber extrusion die with a single cavity and would evaluate the effect of introducing the design of double cavity design on the overall increase in productivity of the industry. After redesigning the die for rubber extrusion moulding we would compare the statistical data of existing output data for productivity and hence the other changes required to keep up the increased productivity rate.

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“…Consumption of polymeric materials has greatly increased Over the past few decades due to their use in diverse industrial sectors [1]. The manufacturing process in this polymeric material undergoes several processes.…”

Section: Introductionmentioning

confidence: 99%

The effect of screw rotating speed on mass flow rate, temperature, viscosity, mooney scorch time anddie swell of cold feed rubber blending prepared by qsm 200 extruder machine

Elmiawan

Saryanto

Sebayang

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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The effect of screw rotating speed on mass flow rate, temperature, viscosity, mooney scorch time anddie swell of cold feed rubber blending prepared by qsm 200 extruder machineTo cite this article: P Elmiawan et al 2017 IOP Conf. Ser.: Mater. Sci. Eng. 204 012020 View the article online for updates and enhancements. Related contentThe effects of screw rotation speed on viscosity, mooney scorch time and dieswell of hot-feed blending rubbercompound prefared by gs/w 250 extruder machine A Zohari, H Saryanto and D Sebayang -A comparative study of ground tire rubber devulcanization using twin screw extruder and internal mixer O Ujianto, D B Putri, Jayatin et al. Abstract.The effect of screw rotating speed on cold feed rubber blending production were evaluated. The specimens were prepared by using QSM 200 extruding machine with variable screw rotating speed 4, 6, 8, 10, 12, 16 and 20 RPM. The temperature set in the screw and head of the barrel was around 80 o C by using Temperature Controll Unit (TCU), and was set around 70 o C in zone 1 and 2. Mooney Viscometer was used to evaluate the viscosity and Mooney Scorch Time of cold rubber blending before and after extruding process. In addition, the dynamic rubber process analyzer was used to evaluate the Die Swell of rubber blending after extruding process. The result indicated that the increase of screw rotating speed has a significant effect to increase the flow rate, temperature and the viscosity of the rubber blending. Otherwise, the Mooney Scorch Time (MST) increases due to the decrease of the screw rotating speed. It does not have a significant effect to the die swell of rubber blending.

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The effect of melt viscosity on thermal efficiency for single screw extrusion of HDPE

Cited by 34 publications

References 8 publications

Analysis of process parameters related to the single-screw extrusion of recycled polypropylene blends by using design of experiments

Analysis of process parameters related to the single-screw extrusion of recycled polypropylene blends by using design of experiments

Designing of Multi-cavity Extrusion Die to Increase Productivity: A survey and perspective

The effect of screw rotating speed on mass flow rate, temperature, viscosity, mooney scorch time anddie swell of cold feed rubber blending prepared by qsm 200 extruder machine

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