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Title: Improving the interfacial and mechanical properties of short glass fiber/epoxy composites by coating the glass fibers with cellulose nanocrystals

Source: Express Polymer Letters, Vol. 10(7): 11 pages.: 587-597.

Author(s)Asadi, A.; Miller, M.; Moon, Robert; Kalaitzidou, K.

Publication Year: 2016  View PDF »

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

Abstract: In this study, the interfacial and mechanical properties of cellulose nanocrystals (CNC) coated glass fiber/epoxy composites were investigated as a function of the CNC content on the surface of glass fibers (GF). Chopped GF rovings were coated with CNC by immersing the GF in CNC (0–5 wt%) aqueous suspensions. Single fiber fragmentation (SFF) tests showed that the interfacial shear strength (IFSS) increased by ~69% in composites produced with CNC coated GF as compared to uncoated GF, suggesting an enhancement of stress transfer across the GF/matrix interface. The role of CNC coatings on the tensile, flexural, and thermo-mechanical properties of the CNC-coated GF/epoxy composites was investigated. Incorporation of 0.17 wt% CNC in the composite resulted in increases of ~10% in both elastic modulus and tensile strength, and 40 and 43 % in flexural modulus and strength respectively. In conclusion CNC coatings on GF alter the GF/matrix interface resulting in improvement of the mechanical performance of the corresponding composites.

Keywords: polymer composites, nanomaterials, coatings, mechanical properties

Publication Review Process: Formally Refereed

File size: 2,048 kb(s)

Date posted: 05/13/2016

This publication is also viewable on Treesearch:  view
RITS Product ID: 79175
Current FPL Scientist associated with this product
Moon, Robert J.
Materials Research Engineer
  

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