Comparison of different methods of introducing water as a co-blowing agent in the carbon dioxide extrusion foaming process for polystyrene thermal insulation foams

Shu Kai Yeh, Jintao Yang*, Nan Rong Chiou, Tom Daniel, L. James Lee

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

In this study, water is used as a co-blowing agent in the carbon dioxide (C02) extrusion foaming process in a twin screw extruder. It acts as a co-blowing agent to generate larger cells and thus low density foams for thermal insulation applications. Different strategies have been studied in our group to introduce water into the foaming process. These methods include direct injection of water into the extnider with surfactants, the extrusion foaming of water expandable polystyrene (WEPS) beads, and feeding water containing activated carbon (WCAC)/polystyrene (PS) pellets. Morphology and properties of foams made by these processes are compared. It was found that WCACPS pellets provide the most stable and clean extrusion process, more uniform cell morphology, and better thermal insulation than other methods.

原文English
主出版物標題67th Annual Technical Conference of the Society of Plastics Engineers 2009, ANTEC 2009
頁面2233-2238
頁數6
出版狀態Published - 2009
事件67th Annual Technical Conference of the Society of Plastics Engineers 2009, ANTEC 2009 - Chicago, IL, United States
持續時間: 22 6月 200924 6月 2009

出版系列

名字Annual Technical Conference - ANTEC, Conference Proceedings
4

Conference

Conference67th Annual Technical Conference of the Society of Plastics Engineers 2009, ANTEC 2009
國家/地區United States
城市Chicago, IL
期間22/06/0924/06/09

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