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Title: Lightweight sheet molding compound (SMC) composites containing cellulose nanocrystals

Source: Composite Structures. 160: 211-219.

Author(s)Asadi, Amir; Miller, Mark; Singh, Arjun V.; Moon, Robert J.; Kalaitzidou, Kyriaki

Publication Year: 2017  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4707-3B

Abstract: A scalable technique was introduced to produce high volume lightweight composites using sheet molding compound (SMC) manufacturing method by replacing 10 wt% glass fibers (GF) with a small amount of cellulose nanocrystals (CNC). The incorporation of 1 and 1.5 wt% CNC by dispersing in the epoxy matrix of short GF/epoxy SMC composites with 25 wt% GF content (25GF/CNC-epoxy) produced 7.5% lighter composites with the same tensile and flexural properties of 35GF/epoxy composites with no CNC. The addition of 1 wt% CNC in 25GF/CNC-epoxy SMC composites resulted in increases of 15% in elastic modulus, 11% in flexural modulus and 14% in flexural strength, reaching the corresponding properties of 35GF/ epoxy SMC composites. Moreover, it was found that although addition of CNC did not alter the impact energy, removing 10 wt% GF resulted in reduction of impact energy.

Keywords: Cellulose nanomaterials; sheet molding compound; polymer-matrix composites (PMCs); light weighting; mechanical properties

Publication Review Process: Formally Refereed

File size: 2,048 kb(s)

Date posted: 10/06/2017

This publication is also viewable on Treesearch:  view
RITS Product ID: 88579
Current FPL Scientist associated with this product
Moon, Robert J.
Materials Research Engineer
  

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