Effect of Modifying Agent (ACR) on Cell Structure and Mechanical Properties of Extrusion-Foamed PVC Sheet

DOI

10.2991/icache-15.2015.18How to use a DOI?

Keywords

PVC; foam; extrusion; supercritical carbon dioxide

Abstract

Rigid polyvinyl chloride (R-PVC) foam sheets were prepared in a continuous extrusion foaming system by using supercritical CO2 as the foaming agent. The effects of acrylic resin (ACR) on the rheological properties of PVC were investigated using a Brabender torque rheometer while other basic formula remained unchanged. The influences of ACR content on microstructure, and mechanical properties of PVC foamed sheet were investigated. The rheological test results showed that with the addition of ACR, the gelation time of the formula was gradually shortened while the equilibrium torque increased. With the increase of ACR content in the formula, the tensile strength, elongation at break, flexural strength and notched impact strength of PVC increased initially and then decreased, implying that there exists an optimum ACR content for improving the mechanical properties of foamed PVC sheet.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Mingyi Wang
AU  - Nanqiao Zhou
AU  - Jun Hu
PY  - 2015/11
DA  - 2015/11
TI  - Effect of Modifying Agent (ACR) on Cell Structure and Mechanical Properties of Extrusion-Foamed PVC Sheet
BT  - Proceedings of the 2015 International Conference on Architectural, Civil and Hydraulics Engineering
PB  - Atlantis Press
SP  - 88
EP  - 92
SN  - 2352-5401
UR  - https://doi.org/10.2991/icache-15.2015.18
DO  - 10.2991/icache-15.2015.18
ID  - Wang2015/11
ER  -