Effect of process variables on melt temperature profiles in extrusion process using single screw plastics extruder

Rozaidi Rasid, A. K. Wood

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Melt temperature is an important parameter in the melt processing of polymers. However, it is not possible to control melt temperature directly, only to influence it using processing parameters such as processing temperature settings. It is therefore important to know the influence of controllable process parameters on melt temperature. In this work, the relationships between controllable process parameters and melt temperature have been investigated for a 50 mm S + B single screw extruder. The extruder was equipped with a thermocouple mesh at the die inlet to determine melt temperature. It was found that melt pressure, die size, feed section barrel temperature, and compression section barrel temperature had a negligible effect on the melt temperature profiles generated, while increasing the screw speed resulted in higher melt temperatures. The metering section barrel temperature had a significant effect on melt temperature, thermal conduction effects being more important than shear heating effects. Equipment wall temperatures, downstream of the screw, produced changes in the melt temperature in the melt located within 7 mm of the wall. It was found that melt temperatures can be significantly different from those set on the equipment.

Original languageEnglish
Pages (from-to)187-192
Number of pages6
JournalPlastics, Rubber and Composites
Volume32
Issue number5
Publication statusPublished - 2003

Fingerprint

Plastics extruders
Extrusion
Temperature
Extruders
Processing

ASJC Scopus subject areas

  • Ceramics and Composites
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Effect of process variables on melt temperature profiles in extrusion process using single screw plastics extruder. / Rasid, Rozaidi; Wood, A. K.

In: Plastics, Rubber and Composites, Vol. 32, No. 5, 2003, p. 187-192.

Research output: Contribution to journalArticle

@article{85a95e7f6e2b4e2e93e46762eb16d507,
title = "Effect of process variables on melt temperature profiles in extrusion process using single screw plastics extruder",
abstract = "Melt temperature is an important parameter in the melt processing of polymers. However, it is not possible to control melt temperature directly, only to influence it using processing parameters such as processing temperature settings. It is therefore important to know the influence of controllable process parameters on melt temperature. In this work, the relationships between controllable process parameters and melt temperature have been investigated for a 50 mm S + B single screw extruder. The extruder was equipped with a thermocouple mesh at the die inlet to determine melt temperature. It was found that melt pressure, die size, feed section barrel temperature, and compression section barrel temperature had a negligible effect on the melt temperature profiles generated, while increasing the screw speed resulted in higher melt temperatures. The metering section barrel temperature had a significant effect on melt temperature, thermal conduction effects being more important than shear heating effects. Equipment wall temperatures, downstream of the screw, produced changes in the melt temperature in the melt located within 7 mm of the wall. It was found that melt temperatures can be significantly different from those set on the equipment.",
author = "Rozaidi Rasid and Wood, {A. K.}",
year = "2003",
language = "English",
volume = "32",
pages = "187--192",
journal = "Plastics, Rubber and Composites",
issn = "1465-8011",
publisher = "Maney Publishing",
number = "5",

}

TY - JOUR

T1 - Effect of process variables on melt temperature profiles in extrusion process using single screw plastics extruder

AU - Rasid, Rozaidi

AU - Wood, A. K.

PY - 2003

Y1 - 2003

N2 - Melt temperature is an important parameter in the melt processing of polymers. However, it is not possible to control melt temperature directly, only to influence it using processing parameters such as processing temperature settings. It is therefore important to know the influence of controllable process parameters on melt temperature. In this work, the relationships between controllable process parameters and melt temperature have been investigated for a 50 mm S + B single screw extruder. The extruder was equipped with a thermocouple mesh at the die inlet to determine melt temperature. It was found that melt pressure, die size, feed section barrel temperature, and compression section barrel temperature had a negligible effect on the melt temperature profiles generated, while increasing the screw speed resulted in higher melt temperatures. The metering section barrel temperature had a significant effect on melt temperature, thermal conduction effects being more important than shear heating effects. Equipment wall temperatures, downstream of the screw, produced changes in the melt temperature in the melt located within 7 mm of the wall. It was found that melt temperatures can be significantly different from those set on the equipment.

AB - Melt temperature is an important parameter in the melt processing of polymers. However, it is not possible to control melt temperature directly, only to influence it using processing parameters such as processing temperature settings. It is therefore important to know the influence of controllable process parameters on melt temperature. In this work, the relationships between controllable process parameters and melt temperature have been investigated for a 50 mm S + B single screw extruder. The extruder was equipped with a thermocouple mesh at the die inlet to determine melt temperature. It was found that melt pressure, die size, feed section barrel temperature, and compression section barrel temperature had a negligible effect on the melt temperature profiles generated, while increasing the screw speed resulted in higher melt temperatures. The metering section barrel temperature had a significant effect on melt temperature, thermal conduction effects being more important than shear heating effects. Equipment wall temperatures, downstream of the screw, produced changes in the melt temperature in the melt located within 7 mm of the wall. It was found that melt temperatures can be significantly different from those set on the equipment.

UR - http://www.scopus.com/inward/record.url?scp=1442282718&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1442282718&partnerID=8YFLogxK

M3 - Article

VL - 32

SP - 187

EP - 192

JO - Plastics, Rubber and Composites

JF - Plastics, Rubber and Composites

SN - 1465-8011

IS - 5

ER -