Effects of Inorganic Fillers on Toughening of Vinyl Ester Resins by Modified Graphene Oxide

Siyao He; Yuqiang Qian; Kunwei Liu; Christopher W. Macosko; Andreas Stein

doi:10.1021/acs.iecr.8b00362

Effects of Inorganic Fillers on Toughening of Vinyl Ester Resins by Modified Graphene Oxide

Siyao He, Yuqiang Qian, Kunwei Liu, Christopher W. Macosko, Andreas Stein

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

Graphene-based nanomaterials show great potential as tougheners for thermosetting resins because they offer effective toughening of resins at an extremely low loading level with minimal change in T_g or modulus. However, commercial resin formulations sometimes contain inorganic fillers that could affect the toughening behavior of graphene-based additives. In this study, the effects of combining modified graphene oxide (mGO) with several widely used filler materials (fumed silica, kaolin clay, and calcium carbonate) on toughening of vinyl ester resins was evaluated. The relative size of additional filler particles compared to mGO particles strongly influences the toughening effects. mGO can toughen the resin if the other filler particles are much smaller and well dispersed. In contrast, the addition of mGO to filler-containing vinyl ester resin may decrease the fracture toughness if it reduces the size of the filler inclusion. Therefore, it is important to know the behavior of a filler in a resin before applying graphene-based toughener to it.

Original language	English (US)
Pages (from-to)	4592-4599
Number of pages	8
Journal	Industrial and Engineering Chemistry Research
Volume	57
Issue number	13
DOIs	https://doi.org/10.1021/acs.iecr.8b00362
State	Published - Apr 4 2018

Bibliographical note

Funding Information:
This research was funded by Adama Materials. Resin composite samples were prepared by Mr. John Ryder. The authors thank Robert Ferris and Frank Thibodeau for helpful discussions. Parts of this work were carried out in the Characterization Facility, University of Minnesota, a member of the NSF-funded Materials Research Facilities Network (www.mrfn.org) via the MRSEC program.

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© 2018 American Chemical Society.

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abstract = "Graphene-based nanomaterials show great potential as tougheners for thermosetting resins because they offer effective toughening of resins at an extremely low loading level with minimal change in Tg or modulus. However, commercial resin formulations sometimes contain inorganic fillers that could affect the toughening behavior of graphene-based additives. In this study, the effects of combining modified graphene oxide (mGO) with several widely used filler materials (fumed silica, kaolin clay, and calcium carbonate) on toughening of vinyl ester resins was evaluated. The relative size of additional filler particles compared to mGO particles strongly influences the toughening effects. mGO can toughen the resin if the other filler particles are much smaller and well dispersed. In contrast, the addition of mGO to filler-containing vinyl ester resin may decrease the fracture toughness if it reduces the size of the filler inclusion. Therefore, it is important to know the behavior of a filler in a resin before applying graphene-based toughener to it.",

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AU - Stein, Andreas

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Effects of Inorganic Fillers on Toughening of Vinyl Ester Resins by Modified Graphene Oxide

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