Foam forming of fiber products: A review

Research output: Contribution to journalReview Articlepeer-review

Abstract

Aqueous foam can be used as a transfer medium to form lightweight materials from natural and man-made fibers together with other types of raw materials. This review discusses mechanisms that underlie the forming process and thus influence physical properties of formed fiber networks such as microporous structure, strength behavior, and transport properties. Homogeneous fiber materials can be formed from versatile raw materials, which makes the technology suitable for a vast range of product applications. An intriguing feature of the method is that the wet foam characteristics provide an additional tool to tailor the performance of the dried material. Understanding foam rheology and how that is affected by added fibers is important in developing the forming process. We introduce both fundamental foam properties and practical forming methods, and show how the material properties are affected by the foam–fiber interaction. The basic features of an industrial production process are also described. The potential material properties are compared against key requirements in typical product applications.

Original languageEnglish
Number of pages37
JournalJournal of Dispersion Science and Technology
DOIs
Publication statusE-pub ahead of print - 8 Mar 2021
MoE publication typeA2 Review article in a scientific journal

Keywords

  • fiber
  • Foam
  • process
  • product
  • structure

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