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Title: The Effect of Flocculent, Dispersants, and Binder on Wet-laid Process for Recycled Glass Fiber/PA6 Composite

The papermaking industry has been using the wet-laid process to suspend paper pulp-derived fibers in water and drain the solution through a forming mesh. This process has recently been adopted to produce non-woven, wet-laid fiber-reinforced polymer matrix composite mats. The mats can be postmolded into different complex shapes using compression molding or related processes. The objective of this study was to produce composite panels from wet-laid mats and observe the effect of chemicals used during the process on the mechanical and thermal characteristics of the resulting composite. Two sets of mats were processed using recycled glass fiber with Polyamide 6 (PA6). Flocculent, dispersant and binder (poly(vinyl alcohol) (PVOH)) were added to one of the mats, and the second mat was processed without these chemicals. The addition of these chemicals enhanced the fiber distribution and reduced processing defects in the mats. This was reflected in the mechanical properties of the final product. It was noticed that the flocculent, dispersant and binder volatilized during the compression molding step. Furthermore, the additives were found not to affect the thermal properties of the consolidated part.
 [1] ;  [2] ; ORCiD logo [3] ;  [1]
  1. Univ. of Tennessee, Knoxville, TN (United States)
  2. Univ. of Alabama at Birmingham, Birmingham, AL (United States)
  3. Oak Ridge National Lab. (ORNL), Knoxville, TN (United States)
Publication Date:
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Polymers and Polymer Composites
Additional Journal Information:
Journal Volume: 26; Journal Issue: 3; Journal ID: ISSN 9999-0020
Smithers Ratha
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
Country of Publication:
United States
36 MATERIALS SCIENCE; Wet–Laid Process; Compression Molding; Dispersion; Recycled Glass Fiber; Mechanical Characterization; Thermal Characterization
OSTI Identifier: