Improving surface qualitity of foamed polycarbonate (PC) parts using water as the physical blowing agent

Jun Peng, Lih Sheng Turng*, Xiang Fang Peng

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents a new process for producing microcellular injection molded plastic parts using water as the physical blowing agent and micro-scaled particles as the cell nucleating agents. Distilled water with dissolved salt were fed through the hopper of an injection molding machine and mixed with polycarbonate (PC) in the machine barrel. Dog-bone bars were molded with different shot volumes, water/salt solution feed rates, and salt concentrations. The resulting surface roughness and microstructure were compared with conventional solid and microcellular injection molded parts.

Original languageEnglish
Title of host publication70th Annual Technical Conference of the Society of Plastics Engineers 2012, ANTEC 2012
Pages1520-1524
Number of pages5
StatePublished - 2012
Externally publishedYes
Event70th Annual Technical Conference of the Society of Plastics Engineers 2012, ANTEC 2012 - Orlando, FL, United States
Duration: 02 04 201204 04 2012

Publication series

NameAnnual Technical Conference - ANTEC, Conference Proceedings
Volume2

Conference

Conference70th Annual Technical Conference of the Society of Plastics Engineers 2012, ANTEC 2012
Country/TerritoryUnited States
CityOrlando, FL
Period02/04/1204/04/12

Keywords

  • Microcellular injection molding
  • Physical blowing agent
  • Polycarbonate (PC)
  • Water-assisted foaming

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